Unmanufactured tobacco

1. Scope and Applicability

This PCR covers tobacco leaves delivered either as fresh harvested green leaf at the field/farm gate, or as cured unmanufactured leaf after one declared air-, fire-, flue-, or sun-curing route and subsequent grading and packing. One dataset shall select one terminal market state and gate. It excludes cigarettes, cigars, smoking mixtures, cut, homogenized or reconstituted tobacco, nicotine extraction, and all other manufactured tobacco or nicotine products.

2. Product Category Identity

Field	Value
canonical_pcr_id	pcr.agriculture-forestry-and-fishery-products.products-of-agriculture-horticulture-and-market-gardening.unmanufactured-tobacco
classification_refs	CPC 3.0: 01970 Unmanufactured tobacco; mapping relation: exact
covered_products	fresh harvested tobacco leaf; air-, fire-, flue-, or sun-cured leaf remaining unmanufactured
excluded_products	manufactured tobacco and nicotine products, including cut, blended, reconstituted, extracted, smoking, oral, and heated products
representative_product	tobacco leaf in one declared green or cured market state
production_route	managed cultivation and harvest, followed conditionally by exactly one curing route and grading/packing
market_state	green leaf at field/farm gate or cured graded leaf at curing/farm hand-off; state, curing method, moisture, grade, variety, crop year, geography, and package form declared

Green and cured routes coexist in this category but are mutually exclusive terminal references in one dataset. Air, fire, flue, and sun curing are alternative technologies rather than simultaneous default operations.

3. Reference Flow

Field	Value
What	unmanufactured tobacco leaf at the selected terminal gate
How much	1,000 kg as-received tobacco leaf
How well	declared green or cured state, curing method where applicable, moisture, grade, variety, origin, crop year, and acceptance specification
How long or cycle	one crop cycle and, for cured leaf, its matched curing and grading batches
reference_flow_link	reference_product_at_declared_handoff

Field	Value
Reference amount	1000
Reference product flow	Unmanufactured tobacco, production mix, at farm gate, fresh unprocessed for green leaf only; cured-leaf identity unresolved
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	terminal leaf state; curing method or not applicable; variety/market class; geography; crop year; moisture basis; grade; package form; gate; included operations

The fixed fresh-leaf UUID shall never identify cured tobacco.

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_as_received	terminal leaf	Mass	kg	Report as-received mass and measured moisture; retain moisture basis for dry-matter comparisons.
area_to_reference_conversion	field flows	activity-specific property	activity-specific unit	Normalize same-cycle field totals first to harvested green leaf, then use matched curing and grading balances for cured leaf.
nutrient_content_basis	nutrient inputs	nutrient mass	kg N, kg P2O5, kg K2O	Preserve product mass, formulation, assay, and elemental/oxide basis separately.
curing_energy_basis	curing energy	energy or carrier mass	MJ, kWh, kg, m3	Preserve carrier and measured amount; document every conversion to delivered energy.

5. System Boundary

Boundary Abstraction

Field	Value
declared_starting_condition	prepared field or transplant bed at crop-cycle start, with planting material and purchased inputs crossing the foreground boundary
starting_condition_role	start of managed tobacco leaf production
product_classification_scope	fresh and cured unmanufactured tobacco leaf corresponding to CPC 01970
recursive_input_rule	tobacco seed/seedlings link to distinct propagation datasets and shall not recurse to this harvested-leaf PCR
upstream_dataset_requirement	compatible datasets for planting material, nutrients, crop protection, irrigation, fuels, electricity, curing energy, and packaging
disclosure	variety; nursery boundary; crop dates; geography; area; irrigation; yield; residue fate; terminal state/gate; curing method/fuel; barn; batches; moisture; grade; rejects; packaging; allocation

Boundary Rules

rule_id	Applies to	Rule	source_ids
boundary_crop_cycle	all routes	Include nursery or purchased transplant input, field preparation, transplanting, management, harvest, and direct field emissions through green-leaf hand-off.	who-tobacco-environment-2017
boundary_curing_route	cured route	Include exactly the declared air, fire, flue, or sun curing route, barn/structure service, energy, drying loss, combustion emissions, handling, and conditioning.	who-tobacco-environment-2017
boundary_grading_packing	cured route	Include pre-gate grading and packing; distinguish accepted grades, downgraded useful leaf, rework, rejects, and waste.	who-tobacco-environment-2017
boundary_manufacturing_exclusion	all routes	Stop before product manufacture, extraction, cutting, blending, reconstitution, distribution, retail, and use.
boundary_direct_emissions	soil and curing combustion	Include managed-soil and foreground combustion emissions from the same activity records used for nutrients and fuels.	ipcc-2019-managed-soils; emep-eea-2023-guidebook; ipcc-2006-stationary-combustion

6. Process Inventory Structure

Process Map

process_id	process_name	inclusion	inclusion_condition	role	quantitative_reference
tobacco_field_production	Tobacco field production and harvest	required	always	managed biological production and separate leaf harvest	hectare and harvested green-leaf mass for one crop cycle
tobacco_leaf_curing	Tobacco leaf curing	conditional	terminal product is cured leaf	stabilize leaf by one declared curing technology	incoming green leaf and accepted cured leaf per batch
cured_leaf_grading_packing	Cured-leaf grading and packing	conditional	cured leaf is graded, reworked, or packed before hand-off	grade and present cured leaf	incoming and accepted packed-leaf mass
declared_reference_handoff	Product Measurement at Declared Handoff	required		foreground	reference_product_at_declared_handoff

Process: Tobacco field production and harvest (tobacco_field_production)

Inputs

Product flows

Fertilizer, urea input (tobacco_field_agricultural_nutrient_inputs)

Include this conditional card only when Fertilizer, urea is actually used in the declared process. For every other actual product or carrier, create a separate atomic exchange with its own identity and measured amount; do not infer its use from this example.

• Selected flow: Fertilizer, urea

• Flow property / unit: Mass / kg product

• Amount rule: Measured quantity of Fertilizer, urea used by this process and period; report zero or not applicable only when the route records establish absence.

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per hectare and converted to 1,000 kg terminal leaf.

• Normalization basis: per declared reference flow

• Basis kind: Crop cycle (crop_cycle)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_field_records

Fertilizer, monoammonium phosphate input (tobacco_field_agricultural_nutrient_inputs_monoammonium_phosphate)

Include this conditional card only when Fertilizer, monoammonium phosphate is actually used in the declared process. For every other actual product or carrier, create a separate atomic exchange with its own identity and measured amount; do not infer its use from this example.

• Selected flow: Fertilizer, monoammonium phosphate

• Flow property / unit: Mass / kg product

• Amount rule: Measured quantity of Fertilizer, monoammonium phosphate used by this process and period; report zero or not applicable only when the route records establish absence.

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per hectare and converted to 1,000 kg terminal leaf.

• Normalization basis: per declared reference flow

• Basis kind: Crop cycle (crop_cycle)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_field_records

Fertilizer, potassium chloride input (tobacco_field_agricultural_nutrient_inputs_potassium_chloride)

Include this conditional card only when Fertilizer, potassium chloride is actually used in the declared process. For every other actual product or carrier, create a separate atomic exchange with its own identity and measured amount; do not infer its use from this example.

• Selected flow: Fertilizer, potassium chloride

• Flow property / unit: Mass / kg product

• Amount rule: Measured quantity of Fertilizer, potassium chloride used by this process and period; report zero or not applicable only when the route records establish absence.

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per hectare and converted to 1,000 kg terminal leaf.

• Normalization basis: per declared reference flow

• Basis kind: Crop cycle (crop_cycle)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_field_records

Cattle manure, as applied input (tobacco_field_agricultural_nutrient_inputs_cattle_manure)

Include this conditional card only when Cattle manure, as applied is actually used in the declared process. For every other actual product or carrier, create a separate atomic exchange with its own identity and measured amount; do not infer its use from this example.

• Selected flow: Cattle manure, as applied

• Flow property / unit: Mass / kg product

• Amount rule: Measured quantity of Cattle manure, as applied used by this process and period; report zero or not applicable only when the route records establish absence.

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per hectare and converted to 1,000 kg terminal leaf.

• Normalization basis: per declared reference flow

• Basis kind: Crop cycle (crop_cycle)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_field_records

Agricultural limestone input (tobacco_field_agricultural_nutrient_inputs_agricultural_limestone)

Include this conditional card only when Agricultural limestone is actually used in the declared process. For every other actual product or carrier, create a separate atomic exchange with its own identity and measured amount; do not infer its use from this example.

• Selected flow: Agricultural limestone

• Flow property / unit: Mass / kg product

• Amount rule: Measured quantity of Agricultural limestone used by this process and period; report zero or not applicable only when the route records establish absence.

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per hectare and converted to 1,000 kg terminal leaf.

• Normalization basis: per declared reference flow

• Basis kind: Crop cycle (crop_cycle)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_field_records

Irrigation water (tobacco_irrigation_water_input)

Record water applied to the tobacco field and distinguish irrigation from rainfall.

• Selected flow: Irrigation water supply

• Flow property / unit: Volume / m3

• Amount rule: metered or calculated applied water; rainfed fields record zero with evidence

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per hectare and converted to terminal leaf.

• Normalization basis: per declared reference flow

• Basis kind: Crop cycle (crop_cycle)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_field_records

• Range: Provisional irrigation screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 8,000
  • Unit: m3/ha
  • Basis: one crop cycle
  • Basis kind: Crop cycle (crop_cycle)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Electricity, medium voltage (tobacco_field_energy_input)

Include this exchange only when Electricity, medium voltage is actually supplied to this process. Record every other actual carrier separately. For purchased operating services, retain the supplier boundary and do not also count fuel or electricity already included in that service. Raw activity or stage basis: per hectare and converted to terminal leaf.

• Selected flow: Electricity, medium voltage
• Flow property / unit: Energy / kWh
• Amount rule: Measured Electricity, medium voltage supplied to this process and period, normalized once to the declared reference output; convert carrier-native units only with documented density, calorific value or meter conventions where needed.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per declared reference flow
• Basis kind: crop_cycle
• Evidence kind: collected_record
• Collection protocol: cp_field_records

Diesel fuel (tobacco_field_energy_input_diesel)

Include this exchange only when Diesel fuel is actually supplied to this process. Record every other actual carrier separately. For purchased operating services, retain the supplier boundary and do not also count fuel or electricity already included in that service. Raw activity or stage basis: per hectare and converted to terminal leaf.

• Selected flow: Diesel fuel
• Flow property / unit: Mass / kg
• Amount rule: Measured Diesel fuel supplied to this process and period, normalized once to the declared reference output; convert carrier-native units only with documented density, calorific value or meter conventions where needed.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per declared reference flow
• Basis kind: crop_cycle
• Evidence kind: collected_record
• Collection protocol: cp_field_records

Required crop-protection records: before completing the foreground package, enumerate every actually applied formulated product separately, retaining trade name, active ingredient, salt or chemical form, concentration, density where needed, application quantity, date and treated area. Select one physically specific product identity per exchange. Derive active-substance releases separately by substance and receiving compartment. Missing formulation identity is a completeness gap; do not replace it with a generic pesticide, invented example, or assumed zero.

Waste flows

Elementary flows

Outputs

Product flows

Harvested green tobacco leaf (green_leaf_output)

Record accepted harvested green leaf as the terminal product or the measured intermediate transferred to curing.

• Selected flow: Unmanufactured tobacco, production mix, at farm gate, fresh unprocessed e903dd1d-1d82-41e7-9526-2ae250746688

• Flow property / unit: Mass / kg Raw output measurement and reconciliation: measured accepted green-leaf mass at declared moisture, grade, and gate

• 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: Site-specific (site_specific) Raw activity or stage basis: per hectare; scale to 1,000 kg only when green leaf is terminal.

• Normalization basis: per declared reference flow

• Basis kind: Crop cycle (crop_cycle)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_harvest_records

• Range: Provisional green-leaf yield screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 500
  • Upper: 8,000
  • Unit: kg/ha
  • Basis: one crop cycle
  • Basis kind: Crop cycle (crop_cycle)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Field residues and rejected leaves (field_residue_waste_output)

Record non-product stalks, roots, rejected leaves, and harvest losses by destination.

• Selected flow: Tobacco field residues and rejected green leaves

• Flow property / unit: Mass / kg

• Amount rule: measured or reconciled mass by residue class and fate

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg harvested green leaf.

• Normalization basis: per declared reference flow

• Basis kind: Process output (process_output)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_harvest_records

• Range: Provisional residue screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 1,500
  • Unit: kg/1,000 kg harvested green leaf
  • Basis: all non-product biomass and rejected leaf by fate
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Elementary flows

Nitrous oxide to air (field_n2o_air_output)

Record calculated managed-soil nitrous oxide in the confirmed unspecified-air compartment.

• Selected flow: Nitrous oxide, emissions to air, unspecified 08a91e70-3ddc-11dd-94c3-0050c2490048

• Flow property / unit: Mass / kg N2O

• Amount rule: calculate from collected N inputs and residues with an applicable method

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per hectare and converted to terminal leaf.

• Normalization basis: per declared reference flow

• Basis kind: N input (n_input)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_field_emissions

• Sources: ipcc-2019-managed-soils

• Range: Broad method-result screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 100
  • Unit: kg N2O/ha
  • Basis: one crop cycle; method calculation governs
  • Basis kind: Crop cycle (crop_cycle)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Ammonia to air (field_ammonia_air_output)

Record calculated fertilizer-related ammonia volatilization in the confirmed unspecified-air compartment.

• Selected flow: Ammonia, emissions to air, unspecified 08a91e70-3ddc-11dd-a2a9-0050c2490048

• Flow property / unit: Mass / kg NH3

• Amount rule: calculate by nutrient product, method, timing, weather, and factor

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per hectare and converted to terminal leaf.

• Normalization basis: per declared reference flow

• Basis kind: N input (n_input)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_field_emissions

• Sources: emep-eea-2023-guidebook

• Range: Broad method-result screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 200
  • Unit: kg NH3/ha
  • Basis: one crop cycle; method calculation governs
  • Basis kind: Crop cycle (crop_cycle)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Nitrate to water (field_nitrate_water_output)

Record calculated or monitored nitrate loss in the confirmed unspecified-water compartment.

• Selected flow: Nitrate, emissions to water, unspecified fe0acd60-3ddc-11dd-aa31-0050c2490048

• Flow property / unit: Mass / kg nitrate

• Amount rule: calculate only with applicable leaching/runoff method or monitored balance

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per hectare and converted to terminal leaf.

• Normalization basis: per declared reference flow

• Basis kind: N input (n_input)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_field_emissions

• Sources: ipcc-2019-managed-soils

• Range: Broad method-result screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 1,000
  • Unit: kg nitrate/ha
  • Basis: one crop cycle; selected method governs
  • Basis kind: Crop cycle (crop_cycle)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Process: Tobacco leaf curing (tobacco_leaf_curing)

Inputs

Product flows

Green leaf entering curing (curing_green_leaf_input)

Record the measured harvested green-leaf batch transferred into the selected curing route.

• Selected flow: Unmanufactured tobacco, production mix, at farm gate, fresh unprocessed e903dd1d-1d82-41e7-9526-2ae250746688

• Flow property / unit: Mass / kg

• Amount rule: measured green-leaf batch mass and moisture

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per batch and converted to 1,000 kg cured leaf.

• Normalization basis: per declared reference flow

• Basis kind: Process output (process_output)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_curing_records

• Range: Green-to-cured mass ratio

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 2
  • Upper: 12
  • Unit: kg green leaf/kg accepted cured leaf
  • Basis: matched batch with moisture states declared
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Electricity, medium voltage (curing_energy_input)

Include this exchange only when Electricity, medium voltage is actually supplied to this process. Record every other actual carrier separately. For purchased operating services, retain the supplier boundary and do not also count fuel or electricity already included in that service. Raw activity or stage basis: per 1,000 kg accepted cured leaf.

• Selected flow: Electricity, medium voltage
• Flow property / unit: Energy / kWh
• Amount rule: Measured Electricity, medium voltage supplied to this process and period, normalized once to the declared reference output; convert carrier-native units only with documented density, calorific value or meter conventions where needed.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per declared reference flow
• Basis kind: process_output
• Evidence kind: collected_record
• Collection protocol: cp_curing_records

Diesel fuel (curing_energy_input_diesel)

Include this exchange only when Diesel fuel is actually supplied to this process. Record every other actual carrier separately. For purchased operating services, retain the supplier boundary and do not also count fuel or electricity already included in that service. Raw activity or stage basis: per 1,000 kg accepted cured leaf.

• Selected flow: Diesel fuel
• Flow property / unit: Mass / kg
• Amount rule: Measured Diesel fuel supplied to this process and period, normalized once to the declared reference output; convert carrier-native units only with documented density, calorific value or meter conventions where needed.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per declared reference flow
• Basis kind: process_output
• Evidence kind: collected_record
• Collection protocol: cp_curing_records

Purchased steam (curing_energy_input_steam)

Include this exchange only when Purchased steam is actually supplied to this process. Record every other actual carrier separately. For purchased operating services, retain the supplier boundary and do not also count fuel or electricity already included in that service. Raw activity or stage basis: per 1,000 kg accepted cured leaf.

• Selected flow: Purchased steam
• Flow property / unit: Energy / MJ
• Amount rule: Measured Purchased steam supplied to this process and period, normalized once to the declared reference output; convert carrier-native units only with documented density, calorific value or meter conventions where needed.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per declared reference flow
• Basis kind: process_output
• Evidence kind: collected_record
• Collection protocol: cp_curing_records

Waste flows

Elementary flows

Outputs

Product flows

Cured tobacco leaf (cured_leaf_output)

The fresh-leaf UUID shall not be reused.

• Selected flow: Cured unmanufactured tobacco leaf

• Flow property / unit: Mass / kg

• Amount rule: measured cured-leaf mass at declared moisture and curing method

• Value mode: Foreground record (foreground_record)

• Specificity: Technology-specific (technology_specific) Raw activity or stage basis: per batch and converted to 1,000 kg accepted cured leaf.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_curing_records

• Range: Cured output fraction

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0.08
  • Upper: 0.50
  • Unit: kg cured leaf/kg incoming green leaf
  • Basis: matched batch with moisture states declared
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Curing rejects (curing_reject_waste_output)

Record leaf rejected during curing and every non-useful destination separately from evaporated water.

• Selected flow: Tobacco curing rejects and non-useful leaf

• Flow property / unit: Mass / kg

• Amount rule: measured rejects plus reconciled non-water loss by fate; evaporated water is not waste

• Value mode: Calculated value (calculated_value)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted cured leaf.

• Normalization basis: per declared reference flow

• Basis kind: Process output (process_output)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_curing_records

• Range: Provisional curing-reject screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 300
  • Unit: kg/1,000 kg incoming green leaf
  • Basis: matched batch, excluding evaporated water
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Elementary flows

Fossil carbon dioxide from curing (curing_fossil_co2_air_output)

Record fossil carbon dioxide from on-site curing combustion only.

• Selected flow: Carbon dioxide (fossil), emissions to air, unspecified 08a91e70-3ddc-11dd-923d-0050c2490048

• Flow property / unit: Mass / kg CO2

• Amount rule: fuel quantity × carrier-specific carbon and oxidation factors; zero without on-site fossil combustion

• Value mode: Calculated value (calculated_value)

• Specificity: Technology-specific (technology_specific) Raw activity or stage basis: per 1,000 kg accepted cured leaf.

• Normalization basis: per declared reference flow

• Basis kind: Fuel inventory (fuel_inventory)

• Evidence kind: Calculated from collection (calculated_from_collection)

• Collection protocol: cp_curing_records

• Sources: ipcc-2006-stationary-combustion

• Range: Route-conditional combustion screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 5,000
  • Unit: kg fossil CO2/1,000 kg accepted cured leaf
  • Basis: zero without fossil combustion
  • Basis kind: Fuel inventory (fuel_inventory)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Process: Cured-leaf grading and packing (cured_leaf_grading_packing)

Inputs

Product flows

Cured leaf entering grading (grading_cured_leaf_input)

Record the measured cured-leaf batch transferred to grading and packing.

• Selected flow: Cured unmanufactured tobacco leaf

• Flow property / unit: Mass / kg

• Amount rule: measured incoming batch mass and moisture

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per batch and converted to 1,000 kg packed leaf.

• Normalization basis: per declared reference flow

• Basis kind: Process output (process_output)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_grading_records

• Range: Grading input-output ratio

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 1
  • Upper: 1.5
  • Unit: kg incoming/kg accepted packed leaf
  • Basis: matched grading batch
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Elementary flows

Outputs

Product flows

Graded cured tobacco leaf (graded_cured_leaf_output)

Record the accepted terminal cured-leaf grade or explicitly declared grade mix.

• Selected flow: Graded cured unmanufactured tobacco leaf

• Flow property / unit: Mass / kg Raw output measurement and reconciliation: measured accepted mass by grade at declared moisture and package form

• 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: Site-specific (site_specific) Raw activity or stage basis: terminal output scaled to 1,000 kg.

• Normalization basis: per declared reference flow

• Basis kind: Reference flow (reference_flow)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_grading_records

• Range: Terminal reference quantity

  • Range role: Allowed range (allowed_range)
  • Lower: 1,000
  • Upper: 1,000
  • Unit: kg
  • Basis: terminal cured-leaf reference flow
  • Basis kind: Reference flow (reference_flow)
  • Evidence kind: Method formula (method_formula)
  • Sources: reference-normalization-rule

Downgraded cured leaf (downgraded_leaf_output)

Record downgraded leaf only when it leaves the process for a named useful destination.

• Selected flow: Downgraded cured tobacco leaf for declared use

• Flow property / unit: Mass / kg

• Amount rule: measured leaf transferred to named useful destination; exclude internal rework

• Value mode: Foreground record (foreground_record)

• Specificity: Site-specific (site_specific) Raw activity or stage basis: per 1,000 kg accepted packed leaf.

• Normalization basis: per declared reference flow

• Basis kind: Process output (process_output)

• Evidence kind: Collected record (collected_record)

• Collection protocol: cp_grading_records

• Range: Provisional downgraded-product screen

  • Range role: QA guardrail (qa_guardrail)
  • Lower: 0
  • Upper: 300
  • Unit: kg/1,000 kg incoming cured leaf
  • Basis: useful destination documented
  • Basis kind: Process output (process_output)
  • Evidence kind: Reasoned estimate (reasoned_estimate)

Waste flows

Rejected cured tobacco leaves (grading_reject_waste_output)

Record Rejected cured tobacco leaves only when this material crosses the declared process boundary. Retain lot, physical state, composition where relevant, and actual destination. Record other materials independently rather than treating this card as a selector or material bundle. Raw activity or stage basis: per 1,000 kg accepted packed leaf.

• Selected flow: Rejected cured tobacco leaves
• Flow property / unit: Mass / kg
• Amount rule: Measured net quantity of Rejected cured tobacco leaves, reconciled to the linked lot and process balance, then normalized once to the declared reference output; retain moisture and any density conversion evidence.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per declared reference flow
• Basis kind: process_output
• Evidence kind: collected_record
• Collection protocol: cp_grading_records

Paperboard packaging waste (grading_reject_waste_output_paper_waste)

Record Paperboard packaging waste only when this material crosses the declared process boundary. Retain lot, physical state, composition where relevant, and actual destination. Record other materials independently rather than treating this card as a selector or material bundle. Raw activity or stage basis: per 1,000 kg accepted packed leaf.

• Selected flow: Paperboard packaging waste
• Flow property / unit: Mass / kg
• Amount rule: Measured net quantity of Paperboard packaging waste, reconciled to the linked lot and process balance, then normalized once to the declared reference output; retain moisture and any density conversion evidence.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per declared reference flow
• Basis kind: process_output
• Evidence kind: collected_record
• Collection protocol: cp_grading_records

Polyethylene packaging-film waste (grading_reject_waste_output_film_waste)

Record Polyethylene packaging-film waste only when this material crosses the declared process boundary. Retain lot, physical state, composition where relevant, and actual destination. Record other materials independently rather than treating this card as a selector or material bundle. Raw activity or stage basis: per 1,000 kg accepted packed leaf.

• Selected flow: Polyethylene packaging-film waste
• Flow property / unit: Mass / kg
• Amount rule: Measured net quantity of Polyethylene packaging-film waste, reconciled to the linked lot and process balance, then normalized once to the declared reference output; retain moisture and any density conversion evidence.
• Value mode: foreground_record
• Specificity: site_specific
• Normalization basis: per declared reference flow
• Basis kind: process_output
• Evidence kind: collected_record
• Collection protocol: cp_grading_records

Elementary flows

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: Unmanufactured tobacco, production mix, at farm gate, fresh unprocessed for green leaf only; cured-leaf identity unresolved
• 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: Unmanufactured tobacco, production mix, at farm gate, fresh unprocessed for green leaf only; cured-leaf identity unresolved
• 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_avoid_by_subdivision	all nodes	Separate field, curing, grading, and batch records; attribute shared meters/equipment by operating time, throughput, or occupied capacity before allocation.	iso-14044-2006
allocation_leaf_grades	useful grades	Preserve grades and direct burdens; if subdivision is infeasible, use contemporaneous hand-off economic allocation and disclose mass sensitivity.	iso-14044-2006
allocation_residue_reject	residues, rework, rejects	Do not allocate to internal rework or waste; prevent reworked leaf from becoming a second output.
allocation_shared_infrastructure	shared barns/assets	Attribute each shared asset once across batches/periods with documented use; prevent cross-node double counting.	iso-14044-2006

8. Foreground Data Collection, Calculation, and Quality Rules

Inventory completeness: conditional named cards are examples of individual exchanges, not an exhaustive recipe or a requirement to use those products. Before completing a foreground package, enumerate every actual planting stock, nutrient, crop-protection formulation, asset material, operating service, carrier, packaging material, waste stream and applicable elementary substance separately, using its physical identity, state, native property/unit, origin or receiving compartment, and measured or method-calculated quantity. Missing identity or quantity remains a completeness gap, never an assumed zero. Preserve the actual lot and phase basis; do not sum intermediate transfers as additional final output or duplicate burdens included in purchased services.

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_field_records	tobacco_field_production	planting, nutrients, water, energy, protection	log, invoice, meter, contractor record	field; area; variety; product; formulation; amount; assay; date; operation	reconcile inputs to field/cycle; Raw aggregation and attribution: sum by identity/field; normalize with matched yield	item; kg; L; m3; MJ; ha	each event	full cycle	all fields	per declared reference flow	invoices; labels; calibrated meters; logs
cp_harvest_records	tobacco_field_production	green leaf, residue, reject	harvest ticket, scale, moisture, destination	field; date; mass; moisture; grade; residue; fate	weigh/reconcile each picking; Raw aggregation and attribution: separate accepted leaf and every residue fate	kg; percent; ha	each picking	full cycle	all fields	per declared reference flow	calibration; lot trace; moisture test
cp_field_emissions	tobacco_field_production	emissions	nutrient, soil, weather, residue, model	N; residue N; soil; climate; application; drainage; factors; model	Within each compatible route/product/state, calculate attributable raw totals by field first. Aggregate final intensity = sum(attributable raw quantities) * declared reference quantity / sum(matched accepted final outputs). When source quantities are per-ha rates e_h and y_h, first recover raw totals as e_harea and y_harea; do not area-weight field totals again. A per-product intensity is weighted by its matched output, not area or an unweighted mean. Apply existing allocation once, preserve period/throughput and all source-unit conversions, and keep incompatible routes separate.	kg N; kg emission; ha	each event/cycle	full cycle	all fields	per declared reference flow	activity and factor provenance; model file
cp_curing_records	tobacco_leaf_curing	leaf, energy, rejects, emissions	batch, scale, moisture, meter, barn log	batch; method; barn; input mass/moisture; carrier; energy; time; outputs	match each run to inputs/outputs/meters; Raw aggregation and attribution: reconcile mass; allocate shared services by measured driver	kg; percent; kWh; MJ; h	each batch/period	full curing period	all barns and curing sites	per declared reference flow	calibrated scale/meter; invoice; barn log
cp_grading_records	cured_leaf_grading_packing	grades, packaging, rework, rejects	batch, scale, grade, issue, destination	batch; input; moisture; accepted; downgrade; rework; reject; packaging	reconcile grades/destinations; Raw aggregation and attribution: count rework once and close mass balance cured_leaf_packaging_input_specific_input: Mandatory input identification, not a selected exchange. Preserved collection scope: Record actual wrap, carton, sack, liner, pallet, crate, strap, and reusable packaging separately. Raw activity or stage basis: per 1,000 kg accepted packed leaf. Preserve each actual input separately, including its actual material/species, physical state, native property/unit, measured quantity, period, destination and unique handover. Before dataset completeness, instantiate a physically specific exchange per actual identity and confirm a compatible UUID or retain its exact unresolved identity. Keep original throughput/normalization, allocation and reuse/stock obligations. A material/function class is not one exchange; do not copy the retired class-level range to components, invent a recipe or infer zero from missing records. Do not duplicate actual quantities or products already represented by another card.	kg; item; percent	each batch	full grading period	all grading and packing sites	per declared reference flow	calibration; grade sheet; package 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	tobacco_field_production	managed environmental coverage by actual node	site/activity/method ledger	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_field_to_green_leaf	field flows	Crop-cycle quantity / matched green-leaf mass gives only a per-kg-green-leaf intermediate. For a green-leaf reference multiply attributable totals by 1,000 kg / accepted green gate mass. For a cured-leaf reference, scale the per-kg-green contribution by actual linked green input per accepted cured kg under calc_green_to_cured_leaf, then multiply by 1,000 kg; add curing/grading contributions on that same final basis once. Preserve actual lots, losses, output shares and units; do not apply the green-to-cured conversion to direct curing quantities or divide final intensities again.	amount; area; green leaf	amount/kg green leaf
calc_green_to_cured_leaf	cured route	green-leaf-normalized amount × green-leaf input / cured output	masses; moisture; rejects	amount/kg cured leaf	mass-balance-identity
calc_nutrient_content	nutrient supply	product amount × declared nutrient fraction	identity; amount; assay	nutrient by product
calc_managed_soil_emissions	field emissions	applicable IPCC/regional method using inputs, residues, volatilization, and leaching	activity; soil; climate; factors	emissions by pathway	ipcc-2019-managed-soils
calc_curing_combustion	curing	fuel quantity × carrier-specific factor; purchased electricity is not on-site combustion	carrier; amount; factor	pollutant/batch	ipcc-2006-stationary-combustion
calc_curing_mass_balance	curing	green wet mass = cured leaf + rejects + water/other loss within uncertainty	masses; moisture	reconciled outputs	mass-balance-identity
calc_grading_mass_balance	grading	input = accepted + downgraded + rejects + loss; count rework once	batch masses; routes	reconciled grades	mass-balance-identity
tobacco_planting_material_input_identity_and_fate	tobacco_field_production	For the original tobacco_planting_material_input collection role at this operation, identify the actual physical form, species/material, composition, state and supply/treatment boundary before creating exchanges. Each seed lot, transplant, crown, cutting, larval stage, formulation, coating, preservative or separated residue actually used/generated requires its own concrete card where relevant to this role; these examples are alternatives, not a required recipe. Retain existing collection records and route-specific source evidence. Count-based planting records require measured or supplier-supported mass-per-unit when matched to a mass-based provider; retain count and mass as linked attributes rather than two purchases. Do not merge separate husk/shell or separate agents. A real mixed stream requires composition and recipient evidence and is counted once. Before completeness, record every applicable amount and native unit, link a compatible verified UUID or explicitly unresolved identity, preserve stock/return attribution, and normalize the attributable raw quantity once to the accepted reference output. Missing records are not zero; aggregate ranges are not individual-input defaults.	cp_field_records	Identity-specific exchanges and reconciled activity records
chemical_species_mass_accounting	elementary_nutrient_emissions	Final elementary exchanges use the mass of the identified substance and one actual receiving compartment. Keep nutrient/activity ledgers separate: species-specific N2O-N × 44/28 gives N2O, NH3-N × 17/14 gives NH3, nitrate-N × 62/14 gives nitrate, and phosphate-P × 95/31 gives phosphate. If the selected flow is elemental phosphorus instead, report kg P and convert phosphate mass by 31/95 only when that species basis is evidenced. Apply a conversion exactly once only when the method output is on the elemental basis; measured compound mass is not reconverted. Total nutrient losses cannot be assigned to a single species without a supported split, and residual/retained soil nutrient is not an emission. Keep direct/indirect pathway ledgers and avoid repeating a pathway already included in the chosen method or upstream inventory. Factor uncertainty ranges screen factors on their stated basis, not final compound amounts or admissible site emissions. Normalize the attributable compound mass once using the accepted reference quantity and the matched measured output. Unknown activity, identity or compartment remains an evidence gap and blocks a completeness claim.	cp_field_emissions; species-specific activity ledger, method pathway and factor basis, matched accepted output	Identity-specific exchanges and reconciled activity records

Environmental Coverage Calculation Rules

rule_id	Applies to	Formula or rule	Inputs	Output	source_ids
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
dq_route_identity	reference	Distinguish green/cured and air/fire/flue/sun route; retain variety, grade, moisture, crop year, gate.	crop, curing, grade, sales records
dq_temporal_alignment	all rows	Match field, harvest, curing, grading, energy, and outputs to the same crop/batches; disclose proxies.	dated records
dq_mass_moisture	transformations	Use calibrated masses and paired moisture at green, cured, and packed states.	calibration; moisture records
dq_route_completeness	curing	Record energy carrier and combustion location; zero energy requires passive-route evidence.	barn log; invoice; meter
dq_identity_resolution	parameterized/unresolved	Resolve every emitted exchange to one verified UUID before process publication.	identity review record

9. Validation Rules

rule_id	Applies to	Rule	source_ids
validation_terminal_route	reference	Select exactly one terminal route: 1,000 kg green or 1,000 kg cured graded leaf; forbid fresh UUID for cured leaf.
validation_curing_method	cured route	Declare one primary curing method per batch and include its energy, barn service, emissions, rejects, and hand-off.	who-tobacco-environment-2017
validation_mass_balance	harvest/curing/grading	Reconcile mass, moisture, grades, rework, rejects, and losses within documented uncertainty.	mass-balance-identity
validation_nutrient_emissions	field	Reconcile nutrient/residue N with N2O, NH3, and nitrate methods without duplicate pathways.	ipcc-2019-managed-soils; emep-eea-2023-guidebook
validation_rework	curing/grading	Link rework to origin and count once; rejected material cannot be accepted reference product.
validation_shared_assets	barns/meters/equipment	Apply one attribution driver per period and prevent double counting.	iso-14044-2006
validation_flow_identity	every flow	Verify each actual exchange against its concrete flow UUID, physical state, property and unit; preserve explicit unresolved identities when confirmation is unavailable.

10. Published Dataset Profile

Field	Value
dataset_role	foreground unmanufactured tobacco leaf production dataset
downstream_use	secondary_dataset; background_dataset after review and publication
allowed_use	LCA of green or cured unmanufactured tobacco preserving geography, crop year, state, curing technology, grade, moisture, gate, and allocation
excluded_use	manufactured tobacco/nicotine products or a different curing route, grade, geography, or gate without reviewed proxy decision
required_metadata	variety/market class; geography; crop year; area; yield; terminal state/gate; curing method; barn/energy; moisture; grade; packaging; residue/reject fate; allocation; identity resolution
required_quality_disclosure	foreground coverage; proxy periods; missing records; range exceedances; emission methods; meter/fuel reconciliation; mass/moisture balance; unresolved identities
update_trigger	reviewed route evidence, technology or emission-method change, concrete flow identity verification

11. Data Sources

Source id	Type	Reference	Used for
who-tobacco-environment-2017	official_guidance	WHO, Tobacco and its environmental impact: an overview, 2017, https://iris.who.int/bitstream/handle/10665/255574/9789241512497-eng.pdf	cultivation and air/fire/flue/sun curing routes
ipcc-2019-managed-soils	method_factor	IPCC, 2019 Refinement, Volume 4, Chapter 11	managed-soil nitrogen pathways
emep-eea-2023-guidebook	method_factor	EEA, EMEP/EEA Air Pollutant Emission Inventory Guidebook 2023	agricultural ammonia context
ipcc-2006-stationary-combustion	method_factor	IPCC 2006 Guidelines, Volume 2, Chapter 2	curing combustion calculations
iso-14044-2006	standard	ISO 14044:2006	allocation and disclosure
mass-balance-identity	method_factor	Conservation of mass for matched harvest, curing, and grading batches	batch calculations and validation
reference-normalization-rule	method_factor	PCR normalization: terminal reference output equals 1,000 kg	exact terminal range

source_id	type	reference	used_for
declared-handoff-measurement-definition	method_factor	This PCR, Sections 3, 6 and 8: measured net mass at the same state and gate is its own normalization denominator, giving a mass ratio of 1; handoff measurement adds no physical processing.	Same-stage and handoff measurement identities; a definition, not an observed yield, empirical default or external publication.