Walnuts, in shell

Lifecycle status: Candidate
Content maturity: Authored methodology
Current version: 0.1.0Last updated2026-10-20
Readiness: Review required

Methodology and translation states come from the source record; publishing this website does not change their review status.

Content languages

zh-CN · Aligned

Status, classification and source details

Readiness

Warnings methodology_not_reviewed Authored methodology is candidate guidance and still requires methodology review.

Classification mapping

CPC 3.0:01376 · exact

Source

library/pcrs/agriculture-forestry-and-fishery-products/products-of-agriculture-horticulture-and-market-gardening/walnuts-in-shellsha256:8ade97e34abd…

1. Scope and Applicability

This PCR guides a foreground data package for walnuts produced in managed perennial walnut-tree systems and transferred as walnuts in shell at a declared farm, primary-conditioning, storage, or hand-off gate. It covers tree establishment and replacement, productive-tree management, harvest and collection, optional dehulling that leaves the hard shell intact, cleaning, grading, storage, and the declared gate hand-off.

The canonical reference-flow identity is the platform record Walnuts, in shell, classified as CPC 3.0 01376, with the platform qualifier Production mix, at farm gate; Fresh, unprocessed produce. A dataset must disclose whether the declared gate is the whole fruit at the fresh farm gate, a dehulled walnut with shell retained, or an extended conditioned or stored lot. These states must not be silently mixed.

This PCR applies to conventional, organic, rain-fed, irrigated, mixed-crop, and smallholder or estate routes when the cultivar or cultivar group, geography, tree age, crop year, harvest maturity, hull status, shell condition, moisture basis, quality state, and gate are disclosed. It excludes nursery operations except as upstream inputs, shell removal, splitting or hatcheting, kernel processing, oil extraction, roasted or otherwise processed walnut products, shell processing, retail packaging, consumer use, and transport or storage after the declared gate. It does not select an Other or n.e.c. product category.

2. Product Category Identity

Field	Value
canonical_pcr_id	`pcr.agriculture-forestry-and-fishery-products.products-of-agriculture-horticulture-and-market-gardening.walnuts-in-shell`
classification_refs	CPC 3.0 `01376`, Walnuts, in shell; mapping relation: exact
covered_products	Whole walnut fruit with hull and shell retained, and dehulled walnuts with the hard shell retained when the extended gate is declared
excluded_products	Shelled or split walnuts; walnut kernel, walnut oil, roasted or otherwise processed walnut products, shell products, and post-gate logistics or retail products
representative_product	Mature or declared-maturity walnuts in shell with cultivar, hull status, moisture or freshness state, grade, accepted mass, reject mass, and gate declared
production_route	Perennial walnut-tree establishment and management, harvest and collection, optional dehulling while retaining the shell, primary conditioning, grading, optional storage, and declared hand-off
market_state	Fresh whole fruit at farm gate or dehulled/conditioned in-shell lot at a declared extended gate, with crop year, geography, maturity, hull status, shell condition, grade, and fate records

3. Reference Flow

Field	Value
What	Walnuts in shell at the declared gate, with the hard shell retained and hull status declared
How much	1,000 kg net accepted walnuts in shell
How well	Cultivar or cultivar group; production country, region, and climate; tree age and productive status; crop year; fresh or conditioned state; hull status; shell integrity; maturity; size or grade; accepted, downgraded, rejected, and loss mass; hull fate; and gate
How long or cycle	One declared crop year within the perennial tree productive life; establishment, immature years, replacement, and removal are allocated over the declared tree-life and accepted-output basis
reference_flow_link	reference_product_at_declared_handoff

Field	Value
Reference amount	1000
Reference product flow	Walnuts, in shell
Reference flow property	Mass `93a60a56-a3c8-11da-a746-0800200b9a66`
Reference unit group	Units of mass `93a60a57-a4c8-11da-a746-0800200c9a66`
Reference unit	kg
Required qualifiers	cultivar or cultivar group; tree block and geography; establishment year, tree age, productive status, and replacement events; soil and climate; irrigation status and water source; crop year or averaging period; harvest maturity; whole-fruit or dehulled state; hull status; moisture basis; shell condition; size or grade; accepted, downgraded, rejected, and loss mass; hull destination; storage duration and condition; and gate

The required qualifiers must be declared in dataset metadata, process notes, the reference-flow comment, product description, or an equivalent data-package field. Net product mass excludes container tare. The platform identity is the fresh farm-gate product flow; dehulling, grading, drying, or storage is an extended gate and must retain that qualifier rather than being represented as a new product category. A shelled or split walnut must not be used as the reference product for this PCR.

Each foreground dataset must explicitly select one actual route, declared gate, product state and output row. Reconcile the selected terminal route with reference_product_at_declared_handoff; normalize that handoff output to the reference quantity and retain preceding-stage outputs as measured transfers. Raw weighing, mass reconciliation and lot traceability requirements continue to apply.

The sole reference output is reference_product_at_declared_handoff, receiving the selected actual route product at the declared gate. Existing route-output ids identify the source and physical state; they are no longer individually fixed to the reference quantity.

4. Measurement and Unit Rules

rule_id	Applies to	Required property	Required unit	Rule
`reference_mass`	accepted reference product	Mass `93a60a56-a3c8-11da-a746-0800200b9a66`	kg	Express the reference as net accepted walnuts in shell at the declared gate and exclude container tare.
`fresh_or_dehulled_gate`	reference and gate outputs	Mass and declared product state	kg and declared state	Keep fresh whole-fruit, dehulled-with-shell, conditioned, and stored gate states separate. Do not use a dehulled amount as a fresh whole-fruit amount without a measured mass conversion and hull fate.
`yield_and_output_basis`	orchard, harvest, conditioning, and storage outputs	Mass and area	kg and ha	Record harvested fruit, accepted grades, hull, field loss, rejects, foreign material, storage losses, and unexplained losses for the same tree-year, lot, or reporting period before normalization.
`moisture_and_freshness_basis`	harvested, conditioned, stored, and accepted walnuts	Mass and moisture or freshness descriptor	kg and declared fraction or class	Preserve as-received mass and moisture or freshness class. Convert between states only with measured mass and a transparent water or dry-matter equation.
`shell_and_maturity_quality`	accepted in-shell product	declared quality properties	declared unit	Retain maturity class, shell integrity, cracks, germination, mold, insect damage, foreign material, size or grade, and freshness as attributes; do not substitute a universal quality default.
`tree_life_allocation_basis`	establishment, replacement, and immature-tree inputs	area, time, or mass activity property	ha, tree-year, or kg product	Allocate perennial establishment, immature years, replacement trees, and removal over the declared tree life and accepted output basis; disclose non-bearing years and replacement events.
`nutrient_product_and_n_basis`	nutrient and soil-amendment inputs	product and nutrient mass	kg product and kg N, P2O5, or K2O	Record formulated product mass and documented nutrient content separately. Nitrogen emission calculations use declared kg N.
`water_basis`	irrigation and wet handling	volume or mass	m3 or kg	Distinguish delivered irrigation water, natural-resource withdrawal, drainage or consumption indicators, and optional wet-cleaning water. A rain-fed or dry-conditioning route records a justified zero for supplied water.
`energy_inventory`	orchard, harvest, dehulling, grading, and storage	mass, volume, or energy	kg, L, MJ, or kWh	Preserve carrier, unit, operation, equipment, period, and conversion basis. Keep fuel, electricity, and thermal conditioning energy distinguishable.
`packaging_quantity`	optional in-scope storage packaging	mass or item count	kg, g, or item	Record packaging material mass or item count with package capacity, reuse status, and lot assignment when packaging crosses the declared gate boundary.

5. System Boundary

The default foreground boundary runs from the declared tree-orchard starting condition through perennial tree management, harvest and collection, and the fresh farm-gate hand-off of accepted walnuts in shell. An extended route additionally includes dehulling that leaves the hard shell intact, cleaning, grading, storage, and the declared post-harvest gate. Upstream production of planting material, fertilizers, crop-protection products, supplied irrigation water, energy carriers, machinery services, and packaging uses representative background datasets. Shell removal, splitting, kernel processing, oil extraction, roasted or otherwise processed walnut products, retail, post-gate transport, and post-gate storage are outside the default boundary.

Boundary Abstraction

Field	Value
declared_starting_condition	tree-orchard site before or at establishment, with planting material and purchased management inputs crossing the foreground boundary; prior land use and existing tree history are disclosed
starting_condition_role	start of managed perennial walnut production and tree-asset accounting
product_classification_scope	CPC 3.0 `01376`, Walnuts, in shell; shelled, split, kernel, oil, shell, and downstream processed walnut products are outside this PCR
recursive_input_rule	Same-category planting material or retained walnuts crossing the boundary are recorded as upstream inputs and are not recursively expanded into another in-shell product output. Internal hand-offs between orchard, harvest, conditioning, grading, and storage are process links and are not additional market outputs.
upstream_dataset_requirement	Use representative upstream datasets for nursery material, nutrient products, crop protection, irrigation supply, fuel, electricity, dehulling or grading services, packaging, machinery services, and waste treatment when these inputs cross the boundary.
disclosure	cultivar and tree block; geography, soil, climate, and land history; establishment year, tree age, productive life, and replacement; irrigation source and quality; nutrient and crop-protection records; harvest maturity; whole-fruit or dehulled state; moisture or freshness; shell quality; grade, reject, hull, and storage records; gate; and any intended hull co-product hand-off

Boundary Rules

rule_id	Applies to	Rule	source_ids
`boundary_tree_to_farm_gate`	all conforming datasets	Include perennial tree establishment, immature years, productive management, harvest, collection, and the declared fresh farm-gate hand-off of accepted walnuts in shell.	`ucdavis-walnut-harvest-processing`; `iso-14044-2006`
`boundary_dehulling_extension`	extended post-harvest route	Include dehulling, cleaning, grading, and storage only when the declared dataset gate extends beyond the fresh whole-fruit farm gate. Report the extended gate and do not relabel it as the platform fresh/unprocessed state.	`ucdavis-walnut-harvest-processing`; `codex-tree-nuts-hygiene-cxc-6-1972`
`boundary_perennial_tree_disclosure`	establishment and replacement	Allocate establishment, immature years, replacement trees, and removal over the declared tree life and accepted-output basis; disclose life, non-bearing years, intercropping, and replacement events.	`ucdavis-walnut-harvest-processing`; `iso-14044-2006`
`boundary_no_shell_removal`	in-shell product	Retain the hard shell in the product boundary. Exclude hatcheting or shell removal, splitting, kernel processing, oil extraction, roasted or otherwise processed walnut products, and shell processing.	`codex-tree-nuts-hygiene-cxc-6-1972`; `ucdavis-walnut-harvest-processing`
`boundary_quality_and_fate`	all outputs	Separate accepted in-shell walnuts, hull, downgraded lots, rejected fruit, foreign material, dust, water loss, storage loss, and unexplained loss by measured mass and declared fate.	`ucdavis-walnut-harvest-processing`; `mass-balance-identity`

6. Process Inventory Structure

The foreground route is batch-based at harvest, dehulling, grading, and storage, even when tree management is recorded continuously. Each harvest round, conditioning batch, grade lot, and storage receipt receives a batch or campaign identifier with a declared start, end, input set, output set, cleaning or changeover event, and reporting period. Shared equipment and shared-run burdens are assigned once to the relevant batch or campaign.

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
`walnut_orchard_establishment_and_management`	Walnut tree establishment and management	required		foreground	tree-year inputs and accepted output basis
`walnut_harvest_and_collection`	Walnut harvest and collection	required		foreground	collected whole fruit before optional dehulling
`walnut_primary_conditioning_and_grading`	Walnut dehulling, material treatment, primary conditioning, and grading	conditional	include when dehulling, cleaning, grading, or an extended gate is part of the foreground package	primary conditioning and stabilization	received lot and grade outputs
`walnut_storage_and_gate_handoff`	Walnut storage and gate hand-off	conditional	include when storage or a post-harvest gate is part of the declared foreground boundary	storage and delivery hand-off	1,000 kg declared gate output
declared_reference_handoff	Product Measurement at Declared Handoff	required		foreground	reference_product_at_declared_handoff

Process: Walnut Tree Establishment and Management (`walnut_orchard_establishment_and_management`)

Inputs

Product flows

Walnut planting and replacement material (`walnut_planting_material`)

Record seedlings, planting material, replacement trees, stakes, and attributable establishment materials by block and event. Annualize them over the declared tree life and accepted in-shell output.

Selected flow: walnut nursery plants and replacement planting material
Flow property / unit: Item count or mass / item or kg
Amount rule: measured quantity by tree block and establishment or replacement event, annualized over accepted output
Value mode: Calculated value (calculated_value)
Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted walnuts in shell.
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Calculated from collection (calculated_from_collection)
Collection protocol: cp_walnut_orchard_lifecycle_records
Range: Provisional planting-material screening estimate
- Range role: Default estimate (default_estimate)
- Lower: 0.1
- Upper: 100
- Unit: kg or planting units per 1,000 kg reference product
- Basis: broad first-pass perennial-tree establishment and replacement estimate
- Basis kind: Reference flow (reference_flow)
- Evidence kind: Reasoned estimate (reasoned_estimate)

Urea fertilizer (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_urea`)

Collection scope and applicability for walnut_orchard_establishment_and_management_agricultural_nutrient_inputs. The following concrete identities have separate cards and apply only when use or generation is evidenced inside the original process scope. They are not mandatory inputs or a default recipe. Document non-use; missing records are not zero. Add a separate concrete card for any other actual material instead of substituting one of these names or UUIDs. Preserve attribution and boundaries and avoid double counting components included in outsourced services.

Collect each fertilizer product separately. Preserve each actual product identity, quantity, formulation, nutrient composition, application event, and allocation; do not count a compound product more than once. Raw activity or stage basis: per 1,000 kg accepted walnuts in shell.

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the product UUID does not establish actual use or upstream-provider compatibility. Count physical product mass once and retain moisture, N/P/K composition and application events; nutrient quantities are calculated attributes, not additional purchases of the same product. Give unlisted compound and organic fertilizers separate cards identified by formulation or feedstock.

Selected flow: Urea 3f8850c0-f718-4c4b-8fcb-8fd42e03aa8e
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_orchard_input_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_orchard_input_records
Sources: ipcc-2019-afolu; fao-fertilizer-identities

Use this product identity only when the actual formulation and grade are compatible. Retain supplier composition and mass records; do not substitute nutrient mass, dilute solution mass or service activity for the product mass. The UUID alone supplies neither a dose nor an emission factor.

Ammonium sulfate fertilizer (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_ammonium_sulfate`)

Selected flow: Ammonium sulfate 8c6f0cbb-16d7-4dc9-8d55-e8dea17d7faf
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_orchard_input_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_orchard_input_records
Sources: ipcc-2019-afolu; fao-fertilizer-identities

Triple superphosphate fertilizer (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_triple_superphosphate`)

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the UUID remains unverified. Count physical product mass once and retain moisture, N/P/K composition and application events; nutrient quantities are calculated attributes, not additional purchases of the same product. Give unlisted compound and organic fertilizers separate cards identified by formulation or feedstock.

Selected flow: Triple superphosphate fertilizer
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_orchard_input_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_orchard_input_records
Sources: ipcc-2019-afolu; fao-fertilizer-identities

Potassium chloride fertilizer (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_potassium_chloride`)

Selected flow: Potassium chloride fertilizer
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_orchard_input_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_orchard_input_records
Sources: ipcc-2019-afolu; fao-fertilizer-identities

Cattle manure applied as fertilizer (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_cattle_manure`)

Selected flow: Cattle manure applied as fertilizer
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_orchard_input_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_orchard_input_records
Sources: ipcc-2019-afolu; fao-organic-nutrients

Composted plant residues applied to soil (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_plant_compost`)

Selected flow: Composted plant residues applied to soil
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_orchard_input_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_orchard_input_records
Sources: ipcc-2019-afolu; fao-organic-nutrients

Supplied irrigation water (`walnut_irrigation_water`)

Record water delivered to each tree block by source and crop year. A verified rain-fed route may record zero supplied irrigation with a water-balance explanation.

Selected flow: irrigation water supplied to walnut trees
Flow property / unit: Volume or mass / m3 or kg
Amount rule: metered or documented delivered irrigation by block and crop year
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted walnuts in shell.
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_irrigation_records
Range: Provisional irrigation screening range
- Range role: QA guardrail (qa_guardrail)
- Lower: 0
- Upper: 2,000
- Unit: m3 per 1,000 kg reference product
- Basis: broad annual supplied irrigation range; rain-fed routes may be zero
- Basis kind: Reference flow (reference_flow)
- Evidence kind: Reasoned estimate (reasoned_estimate)

Electricity at the equipment supply point (`walnut_field_energy_electricity`)

Collection scope and applicability for walnut_field_energy. The following concrete identities have separate cards and apply only when use or generation is evidenced inside the original process scope. They are not mandatory inputs or a default recipe. Document non-use; missing records are not zero. Add a separate concrete card for any other actual material instead of substituting one of these names or UUIDs. Preserve attribution and boundaries and avoid double counting components included in outsourced services.

Record fuel and electricity used for pumps, field equipment, access, collection support, and tree management separately by carrier and operation. Raw activity or stage basis: per 1,000 kg accepted walnuts in shell.

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the product UUID does not establish actual use or upstream-provider compatibility. Retain the electricity supply point, fuel grade, density and heating-value basis. Distinguish purchased heat from on-site fuel conversion without counting its input fuel again.

Selected flow: Alternating current 455f0ef5-6118-4f2b-a3f5-1f75e0afe3ca
Flow property / unit: Energy / kWh
Amount rule: Collect raw quantities for this identity under cp_walnut_energy_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_energy_records
Sources: fao-agricultural-energy

This binding is alternating current at the use point with supply technology, voltage and provider unspecified. Confirm actual AC supply; DC requires a different identity. The database reference is 1 MJ: preserve meter kWh and convert once using 1 kWh = 3.6 MJ when linking reference quantities. Internal generation links to its foreground generator, without an additional purchased-electricity burden.

Diesel fuel supplied to equipment (`walnut_field_energy_diesel`)

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the product UUID does not establish actual use or upstream-provider compatibility. Retain the electricity supply point, fuel grade, density and heating-value basis. Distinguish purchased heat from on-site fuel conversion without counting its input fuel again.

Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_energy_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_energy_records
Sources: fao-agricultural-energy

Gasoline supplied to equipment (`walnut_field_energy_gasoline`)

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the UUID remains unverified. Retain the electricity supply point, fuel grade, density and heating-value basis. Distinguish purchased heat from on-site fuel conversion without counting its input fuel again.

Selected flow: Gasoline supplied to equipment
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_energy_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_energy_records
Sources: fao-forest-equipment

Waste flows

Outputs

Elementary flows

Waste flows

Orchard pruning and fallen-fruit residue (`walnut_orchard_residue`)

Record pruned branches, fallen nuts, damaged nuts, and other orchard residues only when they cross the foreground boundary or receive a defined treatment. Distinguish residue retained on soil from removed or transferred biomass.

Selected flow: walnut orchard residue and removed biomass
Flow property / unit: Mass / kg
Amount rule: measured or documented residue mass by block and fate
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted walnuts in shell.
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_orchard_lifecycle_records
Range: Orchard-residue screening range
- Range role: QA guardrail (qa_guardrail)
- Lower: 0
- Upper: 1,000
- Unit: kg per 1,000 kg reference product
- Basis: removed or treated orchard biomass; retained soil residue may be recorded as zero crossing the boundary
- Basis kind: Reference flow (reference_flow)
- Evidence kind: Reasoned estimate (reasoned_estimate)

Process: Walnut Harvest and Collection (`walnut_harvest_and_collection`)

Inputs

Product flows

Whole walnuts available for collection (`walnut_harvest_available`)

Record mature or otherwise declared-maturity whole fruit available to the harvest operation before collection loss and hand-off.

Selected flow: Walnuts, in shell b87dc835-33df-4974-a2e7-679529cdec70
Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
Amount rule: measured harvested fruit mass before dehulling or conditioning
Value mode: Foreground record (foreground_record)
Specificity: Product-specific (product_specific) Raw activity or stage basis: per 1,000 kg accepted walnuts in shell.
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_harvest_lot_records
Range: Harvest-input mass guardrail
- Range role: QA guardrail (qa_guardrail)
- Lower: 1,000
- Upper: 1,400
- Unit: kg per 1,000 kg accepted reference product
- Basis: harvested whole-fruit mass before field and quality losses
- Basis kind: Reference flow (reference_flow)
- Evidence kind: Reasoned estimate (reasoned_estimate)

Electricity at the equipment supply point (`walnut_harvest_energy_electricity`)

Collection scope and applicability for walnut_harvest_energy. The following concrete identities have separate cards and apply only when use or generation is evidenced inside the original process scope. They are not mandatory inputs or a default recipe. Document non-use; missing records are not zero. Add a separate concrete card for any other actual material instead of substituting one of these names or UUIDs. Preserve attribution and boundaries and avoid double counting components included in outsourced services.

Record climbing, cutting, collection, field transport, and handling energy by harvest round and equipment. Raw activity or stage basis: per 1,000 kg accepted walnuts in shell.

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the product UUID does not establish actual use or upstream-provider compatibility. Retain the electricity supply point, fuel grade, density and heating-value basis. Distinguish purchased heat from on-site fuel conversion without counting its input fuel again.

Selected flow: Alternating current 455f0ef5-6118-4f2b-a3f5-1f75e0afe3ca
Flow property / unit: Energy / kWh
Amount rule: Collect raw quantities for this identity under cp_walnut_energy_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_energy_records
Sources: fao-agricultural-energy

Diesel fuel supplied to equipment (`walnut_harvest_energy_diesel`)

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the product UUID does not establish actual use or upstream-provider compatibility. Retain the electricity supply point, fuel grade, density and heating-value basis. Distinguish purchased heat from on-site fuel conversion without counting its input fuel again.

Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_energy_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_energy_records
Sources: fao-agricultural-energy

Waste flows

Outputs

Waste flows

Uncollected or damaged harvest fruit (`walnut_harvest_loss`)

Record fruit left in the field, damaged during harvest, over-mature fruit, and other collection losses with the actual fate.

Selected flow: walnut harvest loss and damaged fruit
Flow property / unit: Mass / kg
Amount rule: field-scale or lot-register mass not transferred to the next process
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted walnuts in shell.
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_harvest_lot_records
Range: Harvest-loss screening range
- Range role: QA guardrail (qa_guardrail)
- Lower: 0
- Upper: 300
- Unit: kg per 1,000 kg accepted reference product
- Basis: uncollected, damaged, or otherwise non-accepted harvest fruit
- Basis kind: Reference flow (reference_flow)
- Evidence kind: Reasoned estimate (reasoned_estimate)

Process: Walnut Dehulling, Primary Conditioning, and Grading (`walnut_primary_conditioning_and_grading`)

This process is conditional. Dehulling removes the outer hull while leaving the hard shell intact; shell removal, splitting, and kernel recovery are outside this PCR. The dehulling and primary conditioning step is the material treatment node; its treated output and all residual destinations are recorded separately.

Inputs

Product flows

Whole walnuts received for conditioning (`walnut_conditioning_input`)

Record the incoming lot state, hull status, maturity, and mass at the conditioning boundary.

Selected flow: Walnuts, in shell b87dc835-33df-4974-a2e7-679529cdec70
Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
Amount rule: measured lot receipt mass, with whole-fruit or dehulled state declared
Value mode: Foreground record (foreground_record)
Specificity: Product-specific (product_specific) Raw activity or stage basis: per 1,000 kg accepted conditioning-gate product.
Normalization basis: per declared reference flow
Basis kind: Process output (process_output)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_dehulling_conditioning_records
Range: Conditioning-input mass guardrail
- Range role: QA guardrail (qa_guardrail)
- Lower: 1,000
- Upper: 1,400
- Unit: kg per 1,000 kg accepted conditioning-gate product
- Basis: received whole-fruit lot before dehulling and grading losses
- Basis kind: Process output (process_output)
- Evidence kind: Reasoned estimate (reasoned_estimate)

Electricity at the equipment supply point (`walnut_conditioning_energy_electricity`)

Collection scope and applicability for walnut_conditioning_energy. The following concrete identities have separate cards and apply only when use or generation is evidenced inside the original process scope. They are not mandatory inputs or a default recipe. Document non-use; missing records are not zero. Add a separate concrete card for any other actual material instead of substituting one of these names or UUIDs. Preserve attribution and boundaries and avoid double counting components included in outsourced services.

Record electricity, fuel, or human-powered equipment activity used for dehulling, cleaning, grading, and changeover. Raw activity or stage basis: per 1,000 kg accepted conditioning-gate product.

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the product UUID does not establish actual use or upstream-provider compatibility. Retain the electricity supply point, fuel grade, density and heating-value basis. Distinguish purchased heat from on-site fuel conversion without counting its input fuel again.

Selected flow: Alternating current 455f0ef5-6118-4f2b-a3f5-1f75e0afe3ca
Flow property / unit: Energy / kWh
Amount rule: Collect raw quantities for this identity under cp_walnut_energy_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_energy_records
Sources: fao-agricultural-energy

Diesel fuel supplied to equipment (`walnut_conditioning_energy_diesel`)

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the product UUID does not establish actual use or upstream-provider compatibility. Retain the electricity supply point, fuel grade, density and heating-value basis. Distinguish purchased heat from on-site fuel conversion without counting its input fuel again.

Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_energy_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_energy_records
Sources: fao-agricultural-energy

Product flows

Conditioning water or cleaning service (`walnut_conditioning_water`)

Record optional cleaning water only when it crosses the foreground boundary. Dry dehulling and cleaning may record a justified zero.

Selected flow: process or cleaning water
Flow property / unit: Volume or mass / m3 or kg
Group selection: deferred until the actual cleaning or washing function is recorded
Amount rule: metered water used by conditioning batch
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted conditioning-gate product.
Normalization basis: per declared reference flow
Basis kind: Process output (process_output)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_dehulling_conditioning_records
Range: Conditioning-water screening range
- Range role: QA guardrail (qa_guardrail)
- Lower: 0
- Upper: 5
- Unit: m3 per 1,000 kg accepted conditioning-gate product
- Basis: optional wet cleaning; dry routes may be zero
- Basis kind: Process output (process_output)
- Evidence kind: Reasoned estimate (reasoned_estimate)

Outputs

Product flows

Accepted walnuts in shell (`walnut_conditioned_accepted_output`)

Record accepted whole or dehulled walnuts with shell retained, grade, maturity, hull status, and declared gate. The accepted walnut lot is the intended output of this conditioning process.

Selected flow: Walnuts, in shell b87dc835-33df-4974-a2e7-679529cdec70
Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg Raw output measurement and reconciliation: measured net accepted lot output excluding tare
Amount rule: measured net transfer mass, retaining lot, actual product state and moisture basis; reconcile to the final reference output at the declared handoff
Value mode: Foreground record (foreground_record)
Specificity: Product-specific (product_specific) Raw activity or stage basis: per 1,000 kg declared conditioning-gate output.
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_grade_reject_records

No fixed numerical screening bound is prescribed for this row. Derive any lot-specific consistency bound from measured incoming quantities, moisture, stocks, losses and uncertainty on the stated basis. Conservation alone supplies no universal yield, water-use or measurement-tolerance interval. Until compatible evidence is available, report quantitative range screening as unavailable; do not clip measurements or substitute an assumed value.

Product flows

Marketed walnut hull co-product (`walnut_hull_coproduct`)

Record a hull stream only when it is intentionally transferred to a declared recipient; otherwise record it as residue or waste below.

Selected flow: walnut hull and fibrous biomass
Flow property / unit: Mass / kg
Amount rule: measured hull mass and declared destination by batch
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted conditioning-gate product.
Normalization basis: per declared reference flow
Basis kind: Process output (process_output)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_hull_destination_records
Range: Marketed hull co-product screening range
- Range role: QA guardrail (qa_guardrail)
- Lower: 0
- Upper: 1,000
- Unit: kg per 1,000 kg received lot
- Basis: measured destination-specific hull mass
- Basis kind: Process output (process_output)
- Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Walnut hull and removed biomass (`walnut_hull_output_or_residue`)

Record removed hull and associated fibrous material separately from shell-retained product. A marketed or transferred hull stream is an intended co-product; retained, composted, or discarded hull is a residue or waste route.

Selected flow: walnut hull and fibrous residue
Flow property / unit: Mass / kg
Amount rule: measured or documented hull mass and destination by batch
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted conditioning-gate product.
Normalization basis: per declared reference flow
Basis kind: Process output (process_output)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_hull_destination_records
Range: Hull-output screening range
- Range role: QA guardrail (qa_guardrail)
- Lower: 100
- Upper: 1,000
- Unit: kg per 1,000 kg received whole-fruit lot
- Basis: removed hull and fibrous material; actual value depends on maturity and incoming state
- Basis kind: Process output (process_output)
- Evidence kind: Reasoned estimate (reasoned_estimate)

Downgraded and rejected walnuts (`walnut_grade_rejects`)

Record cracked, moldy, insect-damaged, immature, over-mature, contaminated, or otherwise off-spec walnuts, with rework, recovery, treatment, or disposal destination.

Selected flow: rejected or downgraded walnuts in shell
Flow property / unit: Mass / kg
Amount rule: measured mutually exclusive grade, downgrade, rework, and reject masses
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg received conditioning lot.
Normalization basis: per declared reference flow
Basis kind: Process output (process_output)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_grade_reject_records
Range: Reject and downgrade screening range
- Range role: QA guardrail (qa_guardrail)
- Lower: 0
- Upper: 250
- Unit: kg per 1,000 kg received conditioning lot
- Basis: rejected, downgraded, reworked, or recovered fruit
- Basis kind: Process output (process_output)
- Evidence kind: Reasoned estimate (reasoned_estimate)

Elementary flows

Process: Walnut Storage and Gate Hand-off (`walnut_storage_and_gate_handoff`)

This process is conditional. Include it when storage, dispatch preparation, or a post-harvest gate is part of the declared foreground boundary.

Inputs

Product flows

Walnuts received for storage (`walnut_storage_input`)

Record opening stock or lot receipt, product state, hull status, moisture or freshness, grade, and storage start.

Selected flow: Walnuts, in shell b87dc835-33df-4974-a2e7-679529cdec70
Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg
Amount rule: measured stock receipt mass excluding tare
Value mode: Foreground record (foreground_record)
Specificity: Product-specific (product_specific) Raw activity or stage basis: per 1,000 kg declared gate output.
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_storage_records

Electricity at the equipment supply point (`walnut_storage_energy_electricity`)

Collection scope and applicability for walnut_storage_energy. The following concrete identities have separate cards and apply only when use or generation is evidenced inside the original process scope. They are not mandatory inputs or a default recipe. Document non-use; missing records are not zero. Add a separate concrete card for any other actual material instead of substituting one of these names or UUIDs. Preserve attribution and boundaries and avoid double counting components included in outsourced services.

Record electricity, fuel, cooling, ventilation, or other storage energy by facility and storage period. Raw activity or stage basis: per 1,000 kg declared gate output.

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the product UUID does not establish actual use or upstream-provider compatibility. Retain the electricity supply point, fuel grade, density and heating-value basis. Distinguish purchased heat from on-site fuel conversion without counting its input fuel again.

Selected flow: Alternating current 455f0ef5-6118-4f2b-a3f5-1f75e0afe3ca
Flow property / unit: Energy / kWh
Amount rule: Collect raw quantities for this identity under cp_walnut_energy_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_energy_records
Sources: fao-agricultural-energy

Diesel fuel supplied to equipment (`walnut_storage_energy_diesel`)

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the product UUID does not establish actual use or upstream-provider compatibility. Retain the electricity supply point, fuel grade, density and heating-value basis. Distinguish purchased heat from on-site fuel conversion without counting its input fuel again.

Selected flow: Diesel fuel 9d258d75-6792-4f1c-9856-81602ed8f816
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_energy_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_energy_records
Sources: fao-agricultural-energy

Product flows

Wooden pallet (`walnut_storage_packaging_wood_pallet`)

Collection scope and applicability for walnut_storage_packaging. The following concrete identities have separate cards and apply only when use or generation is evidenced inside the original process scope. They are not mandatory inputs or a default recipe. Document non-use; missing records are not zero. Add a separate concrete card for any other actual material instead of substituting one of these names or UUIDs. Preserve attribution and boundaries and avoid double counting components included in outsourced services.

Record packaging only when it crosses the declared gate boundary or is attributable to the stored lot. Raw activity or stage basis: per 1,000 kg declared gate output.

Confirm identity, grade, state and unit from equipment, supplier and contemporaneous measurements; the UUID remains unverified. Record composition, net mass, reuse cycles and return losses; attribute reusable items by actual use and separate packaging from product mass. Keep distinct treatment destinations separate without assuming recycling credits.

Selected flow: Wooden pallet
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_storage_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_storage_records
Sources: fao-package-identities

Wooden crate (`walnut_storage_packaging_wood_crate`)

Selected flow: Wooden crate
Flow property / unit: Mass / kg
Amount rule: Collect raw quantities for this identity under cp_walnut_storage_records and calculate the exchange per declared reference flow using the original attribution rules.
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_storage_records
Sources: fao-package-identities

Outputs

Product flows

Accepted walnuts at declared gate (`walnut_gate_output`)

Record net dispatched product with the declared whole-fruit or dehulled-with-shell state, grade, freshness or moisture, and gate.

Selected flow: Walnuts, in shell b87dc835-33df-4974-a2e7-679529cdec70
Flow property / unit: Mass 93a60a56-a3c8-11da-a746-0800200b9a66 / kg Raw output measurement and reconciliation: measured net dispatch mass excluding tare
Amount rule: measured net transfer mass, retaining lot, actual product state and moisture basis; reconcile to the final reference output at the declared handoff
Value mode: Foreground record (foreground_record)
Specificity: Product-specific (product_specific) Raw activity or stage basis: per 1,000 kg declared gate output.
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_storage_records

Waste flows

Storage loss and damaged product (`walnut_storage_loss`)

Record only material actually discarded from this storage lot, by measured mass, actual condition and treatment/disposal recipient. Keep mould-damaged nuts or other physically removed product separate from water evaporation, respiratory change, internal rework, transfers and unexplained stock differences under calc_06. Where distinct actual materials have different identities or destinations, create separate concrete cards; do not duplicate a physical mixture and its components. Raw activity or stage basis: retain the original lot mass and storage duration before final-reference normalization.

Selected flow: walnut storage loss or damaged product
Flow property / unit: Mass / kg
Amount rule: measured actual discarded material mass by lot, identity and recipient; reconcile under the storage reconciliation in Section 8 without assigning unexplained or evaporative loss to this Waste quantity
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg declared gate output.
Normalization basis: per declared reference flow
Basis kind: Reference flow (reference_flow)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_walnut_storage_records

No generic numerical range is prescribed for this actual discarded-material exchange. Check independently measured discarded mass against the matched available lot of the same material, with moisture, stocks and transfers reconciled. A total storage-decrease screen including evaporation or unexplained difference cannot be applied to this Waste amount; no bound generates a quantity or replaces recipient evidence.

Process: Product Measurement at the Declared Handoff (`declared_reference_handoff`)

This node records the actual product handoff at the existing system boundary for reconciliation and reference-quantity normalization. It adds no physical processing and does not presume drying, cooling, storage, packaging or transport. Each data package declares one actual route, one terminal product state, moisture or dry-matter basis, and gate. Feed only the accepted product delivered by that route at that gate into this node; do not add other routes as extra inputs. Record co-products separately and apply Section 7. Count preceding inputs, losses and emissions once. Normalize using the measured accepted net mass at the handoff; this measurement node changes neither mass, yield nor allocation.

Inputs

Product flows

Actual route product at handoff (`actual_route_product_for_handoff`)

Record the accepted product delivered by the actual terminal route and reconcile it with handoff weighing and lot records.

Selected flow: Walnuts, in shell
Flow property / unit: Mass / kg
Amount rule: measured accepted net product mass at the actual handoff, normalized to the reference quantity; do not sum preceding-stage quantities, other routes or co-products
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Process output (process_output)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_declared_reference_handoff
Range: Handoff quantity normalization identity
- Range role: QA guardrail (qa_guardrail)
- Lower: 1
- Upper: 1
- Unit: kg/kg net handoff mass of the same state
- Basis: normalization of the measured net mass of the same handoff state; not a physical-operation yield
- Basis kind: Process output (process_output)
- Evidence kind: Method formula (method_formula)
- Sources: declared-handoff-measurement-definition

Waste flows

This measurement node adds no waste inputs.

Elementary flows

This measurement node adds no resource inputs.

Outputs

Product flows

Reference product at declared handoff (`reference_product_at_declared_handoff`)

Selected flow: Walnuts, in shell
Flow property / unit: Mass / kg
Amount rule: 1000 kg
Value mode: Foreground record (foreground_record)
Specificity: Site-specific (site_specific)
Normalization basis: per declared reference flow
Basis kind: Process output (process_output)
Evidence kind: Collected record (collected_record)
Collection protocol: cp_declared_reference_handoff Confirm the product UUID independently for the actual state. Until confirmed, retain unresolved identity instead of inheriting a UUID from a preceding stage or another route.
Range: Handoff quantity normalization identity
- Range role: QA guardrail (qa_guardrail)
- Lower: 1
- Upper: 1
- Unit: kg/kg net handoff mass of the same state
- Basis: normalization of the measured net mass of the same handoff state; not a physical-operation yield
- Basis kind: Process output (process_output)
- Evidence kind: Method formula (method_formula)
- Sources: declared-handoff-measurement-definition

Waste flows

Record actual losses at the operation where they occur; do not duplicate them here.

Elementary flows

Record actual emissions at the operation where they occur; do not duplicate them here.

7. Allocation and Co-product Handling

rule_id	applies_to	Rule	source_ids
`allocation_01`	tree management and harvest with an intended hull output	Prefer process subdivision when tree, harvest, dehulling, hull collection, and nut records are independently available. When hull is deliberately collected and transferred as an intended co-product, allocate shared burdens by measured dry-matter mass; if dry-matter data are unavailable, use measured as-received mass and disclose the limitation.	`iso-14044-2006`; `ucdavis-walnut-harvest-processing`
`allocation_02`	hull retained on site or discarded	If hull remains on the field, is composted without an intended product hand-off, or is discarded as residue, do not assign a co-product credit. Retain its mass and fate as residue or waste and assign shared burden to the intended in-shell walnut output.	`iso-14044-2006`; `mass-balance-identity`
`allocation_03`	premium, standard, and downgraded in-shell grades	Use physical mass allocation between mutually exclusive accepted grade outputs when common conditioning burdens cannot be subdivided. Grade-specific operations remain with the grade receiving them; do not allocate the same lot to both a grade row and an aggregate output row.	`iso-14044-2006`; `mass-balance-identity`
`allocation_04`	perennial tree periods and phases	Annualize establishment, immature years, replacement, intercropping attribution, and removal over the declared tree life and accepted output basis. Link every input and output to a crop year or lifecycle phase; do not count a replacement event in both the original and replacement tree phases.	`ucdavis-walnut-harvest-processing`; `iso-14044-2006`
`allocation_05`	downgraded, reworked, rejected, and recovered lots	Keep rejected and downgraded lots separate from accepted product. Rework retains the producing-node burden and is linked once; recovered or intentionally marketed material requires a declared destination and allocation decision; discarded material receives its declared treatment burden.	`mass-balance-identity`; `iso-14044-2006`
`allocation_06`	batch, campaign, and changeover attribution	Link tree, harvest, conditioning, dehulling, grading, and storage inputs and outputs to the batch or campaign that generated them. Record cleaning and changeover events once and do not allocate shared-run burdens to more than one batch without a documented driver.	`mass-balance-identity`; `iso-14044-2006`

The hard shell remains part of the in-shell reference product and is not a separate co-product in this PCR. Kernel, oil, and shell-removal outputs belong to downstream walnut-product PCRs and must not be introduced into this inventory. No output may be counted both as a marketed hull co-product and as orchard or conditioning residue.

Concrete cards do not inherit numerical ranges from the former aggregate card. Determine quantities from original records, stock/meter reconciliation and the declared reference flow; no default quantity or numeric screen is supplied without evidence matching the identity, unit, period and boundary. Missing range evidence is a quality disclosure, not zero use or proof of completeness.

8. Foreground Data Collection, Calculation, and Quality Rules

Retain raw site, lot, cycle and stage quantities and denominators in each collection protocol. Reconcile stocks, losses, moisture and co-product attribution first, then normalize: normalized exchange = attributable raw exchange × declared reference quantity / accepted hand-off product quantity on the same boundary and measurement basis. Apply perennial-establishment and shared-operation attribution before this normalization. Never set an internal-transfer quantity equal to the final reference quantity. Per declared reference flow means the amount, unit and product state in section 3; the data package must declare its actual route and gate.

Data Collection Protocols

protocol_id	process_id	flow_role	record_type	raw_fields	collection_method	unit	frequency	temporal_coverage	site_scope	aggregation_rule	quality_evidence
`cp_walnut_orchard_lifecycle_records`	`walnut_orchard_establishment_and_management`	tree asset, land, planting, replacement, intercropping, residue	tree block and asset register	block area; planting year; cultivar; tree count; replacement; removal; pruning residue; tree phase; accepted output	block register, field log, and annual reconciliation; Raw aggregation and attribution: link block records to crop year and accepted output	ha, item, kg, tree-year	event and annual	full declared tree life or documented representative period	every contributing tree block	per declared reference flow	signed field register, GIS or survey area, replacement evidence
`cp_walnut_orchard_input_records`	`walnut_orchard_establishment_and_management`	nutrient, amendment, crop protection	input application record	product name; formulation; nutrient content; active ingredient; amount; date; block; purpose; method	invoice, application log, and supplier record; Raw aggregation and attribution: aggregate by product, nutrient, block, and crop year	kg product, kg nutrient, kg active ingredient	every application	crop year	every contributing block	per declared reference flow	invoice, product label, application log
`cp_walnut_irrigation_records`	`walnut_orchard_establishment_and_management`	irrigation and water	irrigation meter or water ledger	source; volume; block; date; meter; water quality; withdrawal and return	meter, pump record, or transparent water balance; Raw aggregation and attribution: reconcile delivery, withdrawal, and declared consumption	m3 or kg	event and monthly	crop year	every irrigated block	per declared reference flow	meter calibration, pump log, water ledger
`cp_walnut_energy_records`	all field, harvest, conditioning, and storage processes	energy and carrier	fuel, electricity, and equipment record	carrier; amount; equipment; operation; lot or block; date; duration; conversion factor	invoice, meter, fuel log, or equipment record; Raw aggregation and attribution: aggregate by carrier, operation, lot, and period	L, kg, MJ, or kWh	event and monthly	crop year and declared post-harvest period	each operation and facility	per declared reference flow	invoice, meter, fuel log, equipment specification
`cp_walnut_emission_records`	`walnut_orchard_establishment_and_management`	direct and indirect field emissions	emission calculation input record	nutrient input; residue; soil condition; crop-protection record; species; method; factor	calculation workbook linked to raw records; Raw aggregation and attribution: retain substance, receiving medium, factor, and source `walnut_field_emissions_specific_emission`: Record calculated emissions from nutrient application, residue handling, crop-protection use, and managed soil using the selected method and receiving medium. calculated from documented inputs, residue fate, soil condition, and method factor This is a mandatory emission-identification requirement, not an aggregate elementary exchange. Identify every applicable substance and actual receiving compartment separately, with compatible units, measured activity or justified calculation method, parameter applicability and uncertainty. Preserve the original operation, period, allocation and final-reference normalization. Reconcile direct and indirect pathways and upstream coverage once; do not substitute total nitrogen, total combustion emissions or a generic pollutant for a named compound. Separately document actual environmental returns, with their material and destination, if relevant. Before dataset completeness create each required specific exchange, confirm a compatible UUID or explicitly retain its unresolved identity. Missing records do not establish zero or inapplicability. `ipcc-2019-afolu`	kg substance	annual and event	crop year	every contributing block	per declared reference flow	calculation review, factor version, source citation
`cp_walnut_harvest_lot_records`	`walnut_harvest_and_collection`	harvest, collection, field loss, residue	harvest-lot register	block; harvest round; maturity; harvested mass; uncollected mass; debris; hull status; destination	weighbridge, field scale, and lot log; Raw aggregation and attribution: reconcile available, collected, lost, and residue mass	kg, date, lot	every collection round	harvest season	every contributing block	per declared reference flow	scale calibration, lot ticket, field inspection
`cp_walnut_dehulling_conditioning_records`	`walnut_primary_conditioning_and_grading`	dehulling, cleaning, water, energy, moisture, batch yield	conditioning batch record	input mass; hull status; method; duration; energy; water; output state; output mass; hull mass; cleaning loss; wastewater	batch log, meter, scale, moisture or freshness test, and water balance; Raw aggregation and attribution: link all inputs and outputs to one batch and gate `walnut_conditioning_residuals_specific_emission`: Record wastewater, dust, soil, fibers, and wash solids only when they cross the boundary or receive treatment; identify receiving medium and fate. measured residual mass or calculated from batch water and solids balance This is a mandatory emission-identification requirement, not an aggregate elementary exchange. Identify every applicable substance and actual receiving compartment separately, with compatible units, measured activity or justified calculation method, parameter applicability and uncertainty. Preserve the original operation, period, allocation and final-reference normalization. Reconcile direct and indirect pathways and upstream coverage once; do not substitute total nitrogen, total combustion emissions or a generic pollutant for a named compound. Separately document actual environmental returns, with their material and destination, if relevant. Before dataset completeness create each required specific exchange, confirm a compatible UUID or explicitly retain its unresolved identity. Missing records do not establish zero or inapplicability.	kg, %, hours, L, kWh	every batch	declared post-harvest period	each conditioning facility or farm unit	per declared reference flow	calibrated scale, batch ticket, freshness or moisture test
`cp_walnut_hull_destination_records`	`walnut_primary_conditioning_and_grading`	hull co-product, residue, or waste	destination and transfer record	hull mass; dry matter or moisture; destination; recipient; price or use; fate; transfer date	scale, transfer record, and destination confirmation; Raw aggregation and attribution: separate intended output from residue and waste	kg and declared fraction	every transfer	conditioning period	each hull destination	per declared reference flow	receipt, transfer note, destination evidence
`cp_walnut_grade_reject_records`	`walnut_primary_conditioning_and_grading`	grade, downgrade, reject, foreign material	inspection and grade record	lot; maturity; hull status; shell condition; mold; insects; foreign material; accepted mass; rework; fate	inspection, sampling, and scale record; Raw aggregation and attribution: mutually exclusive grade and reject states	kg, %, grade code	every lot	declared post-harvest period	each grading point	per declared reference flow	inspection sheet, sample plan, scale calibration
`cp_walnut_storage_records`	`walnut_storage_and_gate_handoff`	storage input, loss, packaging, gate output	stock and dispatch ledger	opening stock; receipts; lot; product state; moisture or freshness; storage duration; packaging; energy; damage; closing stock; dispatch mass; gate; external transfers, actual discarded mass by material/recipient, separately evidenced evaporation/respiration and other physical losses, signed unexplained difference, uncertainty, common moisture/component basis	Measure and reconcile the separate stock, waste and physical-loss ledgers under calc_06; aggregate actual discarded material by identity and recipient, not by total stock difference.	kg, %, days, kWh, item	receipt, inspection, and dispatch	declared storage period	each storage facility	per declared reference flow	stock reconciliation, dispatch ticket, freshness or moisture and pest record
`cp_declared_reference_handoff`	declared_reference_handoff	reference_product_at_declared_handoff	handoff weighing and acceptance records	route, terminal_output_row_id, product_state, gate, lot, net_mass_kg, moisture_basis, acceptance, tare	Use calibrated scales or traceable weighing records; reconcile the actual terminal-operation handoff lot, accepted net mass, product state and moisture; exclude packaging tare and do not sum preceding-stage quantities.	kg	each handoff lot	declared reporting period	declared handoff gate	per declared reference flow	calibration or weighing tickets, acceptance and lot traceability
`cp_phase1_environment_coverage`	walnut_orchard_establishment_and_management	managed environmental coverage by actual node	site/activity/method ledger	actual production nodes; soil/substrate route; climate/soil; nutrient product mass and composition; residue fate/N; relevant mineralisation/organic-soil/excreta activity; method/tier/equation/version; pathway factors and units; lime/urea; actual fuels; substance/compartment; supplier coverage; site and actual managed nodes; area; dated occupation intervals; co-users; establishment/immature history; actual prior/current land classes and transformation dates/areas; carbon-method coverage; upstream land coverage	Collect original records by the actual responsible production node and matched lot/period; retain provenance, method applicability and uncertainty. Reconcile with existing protocols and provider coverage, do not add duplicate events. Explicitly document inapplicability; absent evidence is a gap.	native activity units; kg N or substance; area/time as applicable	event and annual/lot reconciliation	matched production/cohort period	all actual managed-production nodes	apply applicable coverage calculations then final normalization once	original records, method worksheets and applicability evidence

Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
`calc_01`	perennial tree inputs	Allocate tree establishment, immature years, replacement, intercropping share, and removal over the declared tree-life basis and accepted output by crop year.	tree asset register; tree life; crop-year output; intercropping driver	annualized tree input per reference flow	`ucdavis-walnut-harvest-processing`; `iso-14044-2006`
`calc_02`	every harvest, conditioning, and storage lot	`opening mass + inputs = accepted outputs + hull co-product + rejects + residues + measured losses + closing mass`; investigate any unexplained residual. Keep terms matched to the same lot, period and moisture basis; closing stock is neither dispatched output nor loss.	lot weights and fates	reconciled mass balance	`mass-balance-identity`
`calc_03`	whole-fruit to dehulled lots	`dehulled mass = whole-fruit input mass − measured hull and non-product losses`; do not infer hull mass from an unrelated average when a lot record exists.	input/output mass; hull record; loss record	state- and fate-corrected product mass	`mass-balance-identity`; `ucdavis-walnut-harvest-processing`
`calc_04`	marketed hull co-product	If hull is intended and transferred, apply measured dry-matter mass allocation to shared harvest and dehulling burdens; if not intended, model residue fate without co-product credit.	walnut mass; hull mass; moisture or dry matter; declared destination	allocated burdens and co-product share	`iso-14044-2006`
`calc_05`	grades, downgraded, reworked, and rejected lots	Grade outputs must be mutually exclusive. Accepted output equals input less hull, declared downgraded, rework, reject, foreign-material, water-loss, and unexplained-loss terms; rework is linked once.	batch input; grade and reject records	normalized output rows	`mass-balance-identity`
`calc_06`	storage	On one matched lot, period and moisture/component basis, reconcile opening stock + external receipts = accepted dispatch + other documented external transfers + actual discarded removals + independently evidenced physical losses + closing stock + signed unexplained difference. Internal movements cancel once. Measure discarded material by identity and destination; evaporation/respiration or other supported physical losses are separate from Waste. The signed difference is an investigation item, never automatically a measured loss, waste exchange or emission. Keep actual measurements and uncertainty; do not clip or infer zero. Attribute supported external quantities and normalize once to matched accepted final output.	lot/period stocks, receipts, dispatch, other transfers, weighed waste, supported physical losses and measurement uncertainty	separate material-waste, physical-loss and unexplained-difference ledgers; supported exports per final reference	`mass-balance-identity`

Environmental Coverage Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
`calc_managed_environment_coverage`	actual managed-production nodes	For the actual owned managed-production node(s), require an applicability ledger for direct soil N2O, volatilisation/deposition-derived indirect N2O, leaching/runoff-derived indirect N2O, NH3/NOx and nutrient losses, plus actual liming/urea-use CO2. Primary calculation precedence is a representative pathway measurement, then a validated site/national method applicable to the crop, soil and management; otherwise use the compatible 2006 IPCC/2019-refined managed-soil equations and climate/input-specific factor selection for N2O and lime/urea CO2. Retain the exact edition, equation, tier, activity and factor units, climate and management applicability; no universal dose or emission factor is prescribed. Non-soil/protected routes need a method valid for their actual medium; do not force soil factors onto an inapplicable route. Use the same period/field N ledger for synthetic and organic additions, residues, actual relevant mineralisation/organic-soil and excreta pathways; demonstrate absent pathways rather than infer zero. Calculate direct and each indirect component separately, then assign each once to matching existing or new concrete cards; never add a total to its components. Convert N2O-N to molecular N2O by 44/28 once. NH3, NOx and nutrient/pesticide loss require an applicable measured or documented substance/fate model; total N/P or an unexplained balance residual is not a compound release. Keep actual receiving compartments and molecular versus elemental/reporting bases explicit; indirect formation does not remove the same N from the source ledger twice. Include actual local combustion releases separately using fuel-specific combustion-only methods; purchased electricity/heat/services retain upstream coverage once. Add one identity-specific exchange only for a supported release and reuse an existing matching card, with verified UUID or explicit unresolved identity. Missing applicable method/activity/factor/identity blocks completeness; it is not a justified zero. Attribute raw activity/release totals and normalize once to the matched accepted reference output.	cp_phase1_environment_coverage	attributed native environmental quantities per matched final reference	`review-ipcc-soils-2019`
`calc_managed_land_coverage`	actual managed-production nodes	For each actual owned managed-production site, collect the occupied area and dated occupation intervals, including attributable establishment/immature and production periods. Occupation is area multiplied by actual duration, converted explicitly to the selected area-time unit (1 ha = 10,000 m2; time in years); hectares per crop-cycle alone are not an area-time result without duration. Partition or take the union of overlapping establishment/management intervals so the same area-time is counted once, with shares across actual co-users summing to one. Record evidenced land transformation separately by actual from/to land class, event area and date under the declared land-use method; transformation has area units and is not added to occupation. Planting, continued occupation or missing prior-land data do not establish a transformation or zero transformation. Preserve actual historical-event attribution and carbon-stock/emission method coverage where applicable; no invented land conversion or generic carbon credit. Instantiate separate compatible elementary identities with verified UUIDs or explicit unresolved identities; attribute once and normalize to the matched final reference. Purchased completed biological inputs inherit compatible upstream land coverage once instead of duplicating it locally. Missing applicable land identity, area, duration or prior-state evidence remains a completeness gap; documented no transformation is a valid absence.	cp_phase1_environment_coverage	attributed native environmental quantities per matched final reference

Data Quality Requirements

requirement_id	Applies to	Requirement	Evidence
`quality_01`	flow identity	Use the verified `Walnuts, in shell` UUID with Mass and kg. Preserve the fresh farm-gate or explicitly extended-gate qualifier and do not substitute shelled, split, or kernel identities.	platform identity record; dataset metadata
`quality_02`	tree and harvest quantities	Use calibrated scales, meters, or transparent documented estimates. Record a justified zero when a route does not use irrigation, wet cleaning, packaging, or storage.	calibration record; field and lot logs
`quality_03`	hull and product state	Measure or document whole-fruit, dehulled-with-shell, and conditioned states separately. Retain hull moisture or dry-matter basis where allocation or conversion uses it.	batch record; scale; moisture or freshness test
`quality_04`	completeness	Reconcile tree inputs, harvest outputs, hull destination, conditioning outputs, rejects, residues, water loss, storage loss, and gate dispatches.	mass-balance workbook; stock ledger
`quality_05`	temporal and perennial representativeness	Cover the declared crop year and report tree phase, productive age, replacement events, intercropping, abnormal weather, and averaging method.	crop-year register; tree lifecycle record
`quality_06`	co-products and fate	Evidence every intended hull hand-off, downgraded destination, rework loop, reject treatment, and residue fate. Do not assign credits to an unverified destination.	transfer note; destination record; treatment record
`quality_07`	geography and technology	Disclose country, region, climate, soil, irrigation regime, harvest practice, dehulling method, grading method, storage condition, hull fate, and gate.	site description; process notes; facility record
`quality_08`	uncertainty and estimates	Label provisional ranges as replaceable candidate-stage estimates and replace them with measured or source-backed values before reviewed or published use.	review record; updated foreground dataset

9. Validation Rules

rule_id	applies_to	Rule	source_ids
`validation_01`	reference flow	Reference product is the verified `Walnuts, in shell` UUID with Mass and kg. The dataset declares whole-fruit or extended dehulled gate state and does not substitute a shelled or split walnut.	`codex-tree-nuts-hygiene-cxc-6-1972`
`validation_02`	process map	Every required process is present; conditional dehulling, cleaning, grading, and storage processes are present when the declared gate or route requires them.	`ucdavis-walnut-harvest-processing`
`validation_03`	perennial production	Tree establishment, immature years, productive phase, replacement, intercropping attribution, and removal are linked to declared crop years and are not double-counted.	`ucdavis-walnut-harvest-processing`; `iso-14044-2006`
`validation_04`	harvest and collection	Harvested, collected, uncollected, damaged, residue, and accepted walnut masses are mutually reconciled; maturity and hand-off state are declared.	`mass-balance-identity`
`validation_05`	dehulling and quality	Whole-fruit input, hull, accepted in-shell product, grade, downgraded/rework, reject, foreign material, water loss, and residuals are mutually exclusive and mass-balanced.	`mass-balance-identity`; `ucdavis-walnut-harvest-processing`
`validation_06`	storage and gate	Opening stock, receipts, dispatches, closing stock, storage damage, product state, storage duration, and gate output reconcile. Storage losses are excluded from accepted output.	`mass-balance-identity`; `ucdavis-walnut-harvest-processing`
`validation_07`	allocation and rework	Hull allocation, grade allocation, downgraded routes, rework loops, rejected-material treatment, and any intercropping attribution are explicit and no burden or output is counted twice.	`iso-14044-2006`
`validation_08`	evidence and disclosure	All important quantitative flows have a foreground collection rule and candidate range or method constraint; estimates, unresolved identities, gate state, hull fate, and evidence limitations are disclosed.	`ucdavis-walnut-harvest-processing`; `mass-balance-identity`
`validation_09`	batch and campaign records	Every harvest round, conditioning batch, grade lot, and storage receipt has a declared boundary, linked inputs and outputs, cleaning or changeover status, and reporting period; shared-run burdens are not counted twice.	`mass-balance-identity`

10. Published Dataset Profile

Field	Value
dataset_role	`secondary_dataset` for a reviewed walnut-in-shell foreground dataset; may be promoted to `background_dataset` only after the required review and publication gates
downstream_use	Construction and validation of process and lifecyclemodel projections for walnuts in shell at the declared fresh farm-gate or extended dehulled, conditioned, or storage gate
allowed_use	Tree management, harvest, collection, dehulling, cleaning, grading, storage, and gate modelling when the declared product state, hull status, maturity, quality, crop year, geography, and allocation treatment are retained
excluded_use	Shell removal, splitting, kernel processing, oil extraction, roasted or otherwise processed walnut products, shell products, retail products, consumer use, post-gate logistics, and unreported product categories
required_metadata	reference UUID; Mass property and Units of mass unit group; CPC 3.0 `01376`; cultivar; geography; tree phase and age; crop year; irrigation; maturity; whole-fruit or dehulled state; hull fate; shell and grade quality; accepted, rejected, residue, loss, and storage records
required_quality_disclosure	measurement versus estimate; freshness or moisture method; mass-balance completeness; tree-life and intercropping allocation; hull co-product allocation; rework and reject fate; storage duration; data period; geography; technology; and unresolved identity gaps
update_trigger	new crop-year records, material change in tree phase or replacement, change in harvest or dehulling technology, new intended hull route, changed storage practice, evidence-backed range replacement, or platform identity revision

Raw downloads

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pcr.en-US.md92 KB · 8ade97e34abd…
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pcr.zh-CN.md81 KB · 751c69ecec1e…
structured.yaml121 KB · 8b72889a4490…

Structured rule index

This index comes from verified structured.yaml and retains the canonical English rule text.

System boundary rules · 6

Rule ID	Applies to	Rule	Source IDs
`system_boundary_rule_1`	foreground_system_boundary	The default foreground boundary runs from the declared tree-orchard starting condition through perennial tree management, harvest and collection, and the fresh farm-gate hand-off of accepted walnuts in shell. An extended route additionally includes dehulling that leaves the hard shell intact, cleaning, grading, storage, and the declared post-harvest gate. Upstream production of planting material, fertilizers, crop-protection products, supplied irrigation water, energy carriers, machinery services, and packaging uses representative background datasets. Shell removal, splitting, kernel processing, oil extraction, roasted or otherwise processed walnut products, retail, post-gate transport, and post-gate storage are outside the default boundary.
`boundary_tree_to_farm_gate`	all conforming datasets	Include perennial tree establishment, immature years, productive management, harvest, collection, and the declared fresh farm-gate hand-off of accepted walnuts in shell.	ucdavis-walnut-harvest-processing, iso-14044-2006
`boundary_dehulling_extension`	extended post-harvest route	Include dehulling, cleaning, grading, and storage only when the declared dataset gate extends beyond the fresh whole-fruit farm gate. Report the extended gate and do not relabel it as the platform fresh/unprocessed state.	ucdavis-walnut-harvest-processing, codex-tree-nuts-hygiene-cxc-6-1972
`boundary_perennial_tree_disclosure`	establishment and replacement	Allocate establishment, immature years, replacement trees, and removal over the declared tree life and accepted-output basis; disclose life, non-bearing years, intercropping, and replacement events.	ucdavis-walnut-harvest-processing, iso-14044-2006
`boundary_no_shell_removal`	in-shell product	Retain the hard shell in the product boundary. Exclude hatcheting or shell removal, splitting, kernel processing, oil extraction, roasted or otherwise processed walnut products, and shell processing.	codex-tree-nuts-hygiene-cxc-6-1972, ucdavis-walnut-harvest-processing
`boundary_quality_and_fate`	all outputs	Separate accepted in-shell walnuts, hull, downgraded lots, rejected fruit, foreign material, dust, water loss, storage loss, and unexplained loss by measured mass and declared fate.	ucdavis-walnut-harvest-processing, mass-balance-identity

Allocation rules · 8

Rule ID	Applies to	Rule	Source IDs
`allocation_01`	tree management and harvest with an intended hull output	Prefer process subdivision when tree, harvest, dehulling, hull collection, and nut records are independently available. When hull is deliberately collected and transferred as an intended co-product, allocate shared burdens by measured dry-matter mass; if dry-matter data are unavailable, use measured as-received mass and disclose the limitation.	iso-14044-2006, ucdavis-walnut-harvest-processing
`allocation_02`	hull retained on site or discarded	If hull remains on the field, is composted without an intended product hand-off, or is discarded as residue, do not assign a co-product credit. Retain its mass and fate as residue or waste and assign shared burden to the intended in-shell walnut output.	iso-14044-2006, mass-balance-identity
`allocation_03`	premium, standard, and downgraded in-shell grades	Use physical mass allocation between mutually exclusive accepted grade outputs when common conditioning burdens cannot be subdivided. Grade-specific operations remain with the grade receiving them; do not allocate the same lot to both a grade row and an aggregate output row.	iso-14044-2006, mass-balance-identity
`allocation_04`	perennial tree periods and phases	Annualize establishment, immature years, replacement, intercropping attribution, and removal over the declared tree life and accepted output basis. Link every input and output to a crop year or lifecycle phase; do not count a replacement event in both the original and replacement tree phases.	ucdavis-walnut-harvest-processing, iso-14044-2006
`allocation_05`	downgraded, reworked, rejected, and recovered lots	Keep rejected and downgraded lots separate from accepted product. Rework retains the producing-node burden and is linked once; recovered or intentionally marketed material requires a declared destination and allocation decision; discarded material receives its declared treatment burden.	mass-balance-identity, iso-14044-2006
`allocation_06`	batch, campaign, and changeover attribution	Link tree, harvest, conditioning, dehulling, grading, and storage inputs and outputs to the batch or campaign that generated them. Record cleaning and changeover events once and do not allocate shared-run burdens to more than one batch without a documented driver.	mass-balance-identity, iso-14044-2006
`allocation_rule_7`	foreground_burden_allocation	The hard shell remains part of the in-shell reference product and is not a separate co-product in this PCR. Kernel, oil, and shell-removal outputs belong to downstream walnut-product PCRs and must not be introduced into this inventory. No output may be counted both as a marketed hull co-product and as orchard or conditioning residue.
`allocation_rule_8`	foreground_burden_allocation	Concrete cards do not inherit numerical ranges from the former aggregate card. Determine quantities from original records, stock/meter reconciliation and the declared reference flow; no default quantity or numeric screen is supplied without evidence matching the identity, unit, period and boundary. Missing range evidence is a quality disclosure, not zero use or proof of completeness.

Validation rules · 9

Rule ID	Applies to	Rule	Source IDs
`validation_01`	reference flow	Reference product is the verified Walnuts, in shell UUID with Mass and kg. The dataset declares whole-fruit or extended dehulled gate state and does not substitute a shelled or split walnut.	codex-tree-nuts-hygiene-cxc-6-1972
`validation_02`	process map	Every required process is present; conditional dehulling, cleaning, grading, and storage processes are present when the declared gate or route requires them.	ucdavis-walnut-harvest-processing
`validation_03`	perennial production	Tree establishment, immature years, productive phase, replacement, intercropping attribution, and removal are linked to declared crop years and are not double-counted.	ucdavis-walnut-harvest-processing, iso-14044-2006
`validation_04`	harvest and collection	Harvested, collected, uncollected, damaged, residue, and accepted walnut masses are mutually reconciled; maturity and hand-off state are declared.	mass-balance-identity
`validation_05`	dehulling and quality	Whole-fruit input, hull, accepted in-shell product, grade, downgraded/rework, reject, foreign material, water loss, and residuals are mutually exclusive and mass-balanced.	mass-balance-identity, ucdavis-walnut-harvest-processing
`validation_06`	storage and gate	Opening stock, receipts, dispatches, closing stock, storage damage, product state, storage duration, and gate output reconcile. Storage losses are excluded from accepted output.	mass-balance-identity, ucdavis-walnut-harvest-processing
`validation_07`	allocation and rework	Hull allocation, grade allocation, downgraded routes, rework loops, rejected-material treatment, and any intercropping attribution are explicit and no burden or output is counted twice.	iso-14044-2006
`validation_08`	evidence and disclosure	All important quantitative flows have a foreground collection rule and candidate range or method constraint; estimates, unresolved identities, gate state, hull fate, and evidence limitations are disclosed.	ucdavis-walnut-harvest-processing, mass-balance-identity
`validation_09`	batch and campaign records	Every harvest round, conditioning batch, grade lot, and storage receipt has a declared boundary, linked inputs and outputs, cleaning or changeover status, and reporting period; shared-run burdens are not counted twice.	mass-balance-identity

Processes and inputs/outputs · 5

Process ID	Process name	Input flows	Output flows
`walnut_orchard_establishment_and_management`	Walnut tree establishment and management	11	1
`walnut_harvest_and_collection`	Walnut harvest and collection	3	1
`walnut_primary_conditioning_and_grading`	Walnut dehulling, material treatment, primary conditioning, and grading	4	4
`walnut_storage_and_gate_handoff`	Walnut storage and gate hand-off	5	2
`declared_reference_handoff`	Product Measurement at Declared Handoff	1	1

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Walnuts, in shell

Content languages

Readiness

Classification mapping

Source

1. Scope and Applicability

2. Product Category Identity

3. Reference Flow

4. Measurement and Unit Rules

5. System Boundary

Boundary Abstraction

Boundary Rules

6. Process Inventory Structure

Process Map

Process: Walnut Tree Establishment and Management (walnut_orchard_establishment_and_management)

Inputs

Product flows

Walnut planting and replacement material (walnut_planting_material)

Urea fertilizer (walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_urea)

Ammonium sulfate fertilizer (walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_ammonium_sulfate)

Triple superphosphate fertilizer (walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_triple_superphosphate)

Potassium chloride fertilizer (walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_potassium_chloride)

Cattle manure applied as fertilizer (walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_cattle_manure)

Composted plant residues applied to soil (walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_plant_compost)

Supplied irrigation water (walnut_irrigation_water)

Electricity at the equipment supply point (walnut_field_energy_electricity)

Diesel fuel supplied to equipment (walnut_field_energy_diesel)

Gasoline supplied to equipment (walnut_field_energy_gasoline)

Waste flows

Outputs

Elementary flows

Waste flows

Orchard pruning and fallen-fruit residue (walnut_orchard_residue)

Process: Walnut Harvest and Collection (walnut_harvest_and_collection)

Inputs

Product flows

Whole walnuts available for collection (walnut_harvest_available)

Electricity at the equipment supply point (walnut_harvest_energy_electricity)

Diesel fuel supplied to equipment (walnut_harvest_energy_diesel)

Waste flows

Outputs

Waste flows

Uncollected or damaged harvest fruit (walnut_harvest_loss)

Process: Walnut Dehulling, Primary Conditioning, and Grading (walnut_primary_conditioning_and_grading)

Inputs

Product flows

Whole walnuts received for conditioning (walnut_conditioning_input)

Electricity at the equipment supply point (walnut_conditioning_energy_electricity)

Diesel fuel supplied to equipment (walnut_conditioning_energy_diesel)

Product flows

Conditioning water or cleaning service (walnut_conditioning_water)

Outputs

Product flows

Accepted walnuts in shell (walnut_conditioned_accepted_output)

Product flows

Marketed walnut hull co-product (walnut_hull_coproduct)

Waste flows

Walnut hull and removed biomass (walnut_hull_output_or_residue)

Downgraded and rejected walnuts (walnut_grade_rejects)

Elementary flows

Process: Walnut Storage and Gate Hand-off (walnut_storage_and_gate_handoff)

Inputs

Product flows

Walnuts received for storage (walnut_storage_input)

Electricity at the equipment supply point (walnut_storage_energy_electricity)

Diesel fuel supplied to equipment (walnut_storage_energy_diesel)

Product flows

Wooden pallet (walnut_storage_packaging_wood_pallet)

Wooden crate (walnut_storage_packaging_wood_crate)

Outputs

Product flows

Accepted walnuts at declared gate (walnut_gate_output)

Waste flows

Storage loss and damaged product (walnut_storage_loss)

Process: Product Measurement at the Declared Handoff (declared_reference_handoff)

Inputs

Product flows

Actual route product at handoff (actual_route_product_for_handoff)

Waste flows

Elementary flows

Process: Walnut Tree Establishment and Management (`walnut_orchard_establishment_and_management`)

Walnut planting and replacement material (`walnut_planting_material`)

Urea fertilizer (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_urea`)

Ammonium sulfate fertilizer (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_ammonium_sulfate`)

Triple superphosphate fertilizer (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_triple_superphosphate`)

Potassium chloride fertilizer (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_potassium_chloride`)

Cattle manure applied as fertilizer (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_cattle_manure`)

Composted plant residues applied to soil (`walnut_orchard_establishment_and_management_agricultural_nutrient_inputs_plant_compost`)

Supplied irrigation water (`walnut_irrigation_water`)

Electricity at the equipment supply point (`walnut_field_energy_electricity`)

Diesel fuel supplied to equipment (`walnut_field_energy_diesel`)

Gasoline supplied to equipment (`walnut_field_energy_gasoline`)

Orchard pruning and fallen-fruit residue (`walnut_orchard_residue`)

Process: Walnut Harvest and Collection (`walnut_harvest_and_collection`)

Whole walnuts available for collection (`walnut_harvest_available`)

Electricity at the equipment supply point (`walnut_harvest_energy_electricity`)

Diesel fuel supplied to equipment (`walnut_harvest_energy_diesel`)

Uncollected or damaged harvest fruit (`walnut_harvest_loss`)

Process: Walnut Dehulling, Primary Conditioning, and Grading (`walnut_primary_conditioning_and_grading`)

Whole walnuts received for conditioning (`walnut_conditioning_input`)

Electricity at the equipment supply point (`walnut_conditioning_energy_electricity`)

Diesel fuel supplied to equipment (`walnut_conditioning_energy_diesel`)

Conditioning water or cleaning service (`walnut_conditioning_water`)

Accepted walnuts in shell (`walnut_conditioned_accepted_output`)

Marketed walnut hull co-product (`walnut_hull_coproduct`)

Walnut hull and removed biomass (`walnut_hull_output_or_residue`)

Downgraded and rejected walnuts (`walnut_grade_rejects`)

Process: Walnut Storage and Gate Hand-off (`walnut_storage_and_gate_handoff`)

Walnuts received for storage (`walnut_storage_input`)

Electricity at the equipment supply point (`walnut_storage_energy_electricity`)

Diesel fuel supplied to equipment (`walnut_storage_energy_diesel`)

Wooden pallet (`walnut_storage_packaging_wood_pallet`)

Wooden crate (`walnut_storage_packaging_wood_crate`)

Accepted walnuts at declared gate (`walnut_gate_output`)

Storage loss and damaged product (`walnut_storage_loss`)

Process: Product Measurement at the Declared Handoff (`declared_reference_handoff`)

Actual route product at handoff (`actual_route_product_for_handoff`)

Reference product at declared handoff (`reference_product_at_declared_handoff`)