Chickpea straw, dryland, Maranoa {AU-QLD}| chickpea production | AusLCI, U
Unit process v00.00.000
This dataset represents the production of 1 kg of chickpea. The yield is 981 t/ha. Documentation for this dataset can be found in the 'LCAgMetrics Methodology for developing Life Cycle Inventory' report, available at https://agrifutures.com.au/. (Hume, I., Renouf, M.A., Eady, S.J., Grant, T., 2025). It was developed as part of the LCAgMetrics project, a partnership between Agrifutures Australia and Lifecycles, funded by the Australian Government’s Sustainability Reporting Uplift Grant as part of the National Agriculture Traceability Grants Program. Production Volume: 35711 t/yr. Activities included: This activity starts after the harvest of the previous crop. Activities included are: the inputs of seeds, mineral fertilisers, pesticides and irrigation water, all machine operations and corresponding machine infrastructure and sheds. It is assumed that no organic fertilisers are applied. Machine operations are: soil cultivation, sowing, fertilisation, irrigation, weed control, pest and pathogen control, combine-harvest, and drying of grains. Direct field emissions are included. This activity ends after harvest and drying of grains at the farm gate. Energy values: 19.6MJ/kg (gross). Nutritional values: Protein: 16%. Carbohydrate: 39%. Fat: 5%. Geography: Maranoa Warrego, QLD, AU. Technology level: Represents current practices as per gross margins reports (AgMargins 2024 & SA Gross Margin Guide 2022). Time period: 2017-2021. Record: Data entry by: Isobel Hume; Tel: +61(0)3 9417 1190; E-mail: office@lifecycles.com.au; Company: Life Cycle Strategies; Country: AU Generator: Data entry by: Isobel Hume; Tel: +61(0)3 9417 1190; E-mail: office@lifecycles.com.au; Company: Life Cycle Strategies; Country: AU
- Sector
- Material
- Contributor
- —
- Last updated
- 30 May 2025
- Reference ID
c409c03b-1bd1-3b1c-ace7-ecd38da638cd
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Documentation
- Quantitative reference
- Chickpea straw, dryland, Maranoa {AU-QLD}| chickpea production | AusLCI, U
- Sampling procedure
- Secondray data compiled from publicly available resources. Validated by expert knowledge to represent typical representative practices and inputs.
- Creation date
- 30 May 2025
- Is copyright protected
- No
- Is infrastructure process
- No
- Tags
- material
- Sources
- —
Product outputs
| Flow | Amount | Unit | Comment |
|---|---|---|---|
| Chickpea straw, dryland, Maranoa {AU-QLD}| chickpea production | AusLCI, U | 53.76499240000001 | kg | Carbon content, fossil: 0.0 kg C/kg dry mass. Carbon content, non-fossil: 0.4 kg C/kg dry mass. Dry mass: 0.9 kg/kg wet mass. Wet mass: 1 kg/kg wet mass. Heating value, gross: 18.1 MJ/kg |
Technical inputs
| Flow | Amount | Unit | Comment |
|---|---|---|---|
| Carbon correction factor {AU}| | AusLCI, U | 17.979013458560004 | kg | Atmospheric CO2 absorbed by the plant. Calculated. |
| Chickpea straw, dryland, Maranoa , biogenic C not balanced {AU-QLD}| chickpea production | AusLCI, U | 53.76499240000001 | kg | — |
Parameters
| Name | Value | Formula | Description |
|---|---|---|---|
| Fburnt | 0.06 | — | (1,3,2,1,1,na) - Fraction of residues burnt for the AER - NIR 2023 (DCCEEW, 2025). |
| P_Crop | 400.0 | — | (1,1,1,2,1,na) -[AUD] Australian dollars per tonne - CSIRO, 2025 |
| Carbon_not_burnt_in_burn_deg | 2.0817805057280023 | Yield*Res_crop*Fresremaining*DM_residue*(1-Burn_efficiency)*Fburnt*CC_residue*44/12 | [kg CO2] Carbon emission from fraction of carbon not burnt in the burn kg CO2 - |
| DM_crop | 0.88 | — | (2,3,3,1,1,na) - [kg dry weight/kg crop] Dry matter content of chickpea crop - NIR 2023 (DCCEEW, 2025). |
| DM_residue | 0.88 | — | (2,3,3,1,1,na) - [kg dry weight/kg residue] Dry matter content of chickpea residues - NIR 2023 (DCCEEW, 2025). |
| Carbon_burning | — | Yield*Res_crop*Fresremaining*DM_residue*Fburnt*CC_residue*Burn_efficiency*EFburn_CO2*44/12 | [kg CO2] Carbon emission from residue burnt - |
| All_Eco | 99.70900130075535 | (m_grain*P_Crop)/(P_Straw*m_straw+m_grain*P_Crop)*100 | Economic allocation fraction for the primary crop |
| Straw_DM | 47.31319331200001 | m_straw*DM_residue | kg DM of straw - |
| NCag_residue | 0.009 | — | (1,3,2,1,1,na) - [kgN/kgDM] Nitrogen content of above-ground chickpea crop residue - NIR 2023 (DCCEEW, 2025). |
| Carbon_monoxide_in_burn | 3.897093106722816 | Yield*Res_crop*Fresremaining*DM_crop*Burn_efficiency*Fburnt*CC_residue*EFburn_CO*44/12 | [kg CO2] Carbon monoxide as CO2 for balance purposes - |
| Allocation | 1.0 | — | Allocation switch, 1 = Economic alocation (default for AusLCI), 2 = Energy allocation, 3 = Mass allocation, - |
| Fremoved | 0.04 | — | (1,3,2,1,1,na) - Fraction of the crop removed in the AER - NIR 2023 (DCCEEW, 2025). |
| ED_Straw | 17.3 | — | (1,1,3,3,2,na) -[MJ/kg DM ] energy density of chickpea straw - Feedipedia |
| Seed_input | 60.0 | — | (3,3,2,3,2,na) - [kg/ha] of seed - |
| CC_residue | 0.4 | — | (2,3,3,1,1,na) - [KgC/kgDM] Carbon mass fraction in dry matter for chickpea straw - NIR 2023 (DCCEEW, 2025). |
| EFburn_CO2 | — | — | (2,3,2,3,1,na) - [Gg element in species/Gg element in fuel burnt] Emission factor from crop residues burning for CO2 - NIR 2023 (DCCEEW, 2025). |
| All_En | 94.79750280996203 | (grain_DM*ED_Crop)/(straw_DM*ed_Straw+grain_DM*ED_Crop)*100 | Allocation fraction for the primary crop based on energy content |
| NCbg_residue | 0.01 | — | (1,3,2,1,1,na) - [kgN/kgDM] Nitrogen content of below-ground chickpea crop residues - NIR 2023 (DCCEEW, 2025). |
| EFburn_CO | 0.078 | — | (2,3,2,3,1,na) - [Gg element in species/Gg element in fuel burnt] Emission factor from crop residues burning for CO - NIR 2023 (DCCEEW, 2025). |
| Biogenic_carbon_Allocation_adjust_grain | -65.92304934805328 | (Carbon_Grain-Biogenic_CO2sent_out_with_grain)/(All_Grain/100) | [kg CO2] kg carbon correction factor for the determning product (chickpea) - |
| All_Straw_En | 5.2024971900379695 | (straw_DM*ed_straw)/(ed_Straw*straw_DM+grain_DM*ED_Crop)*100 | Allocation fraction for straw based on energy content |
| m_straw | 53.76499240000001 | yield*Res_crop*fremoved | kg Straw - wet mass - |
| Carbon_Straw | 69.39268352426667 | Straw_DM*CC_residue*44/12 | [kg CO2] Biogenic carbon absorbed by straw CO2 - |
| All_Straw | 0.29099869924464766 | iff(Allocation=2; All_straw_EN; iff(Allocation =3; All_straw_Mass;All_straw_Eco)) | Allocation to straw - |
| m_grain | 921.113 | yield-Seed_input | kg Grain - wet mass - |
| Carbon_Grain | 1188.8498453333336 | Grain_DM*CC_crop*44/12 | [kg CO2] Biogenic carbon absorbed by grain CO2 - |
| Yield | 981.113 | — | (1,2,1,1,1,na) -[kg/ha] yield, calculated from five year average ('18 - '22) - Australian Bureau of Statistics 2017-2022 |
| CC_crop | 0.4 | — | (2,3,3,1,1,na) - [KgC/kgDM] Carbon mass fraction in dry matter for chickpea crop - NIR 2023 (DCCEEW, 2025). |
| Grain_DM | 810.5794400000001 | m_grain*DM_Crop | kg DM of grain - |
| Biogenic_carbon_Allocation_adjust_straw | 65.92304934805334 | (Carbon_Straw-Biogenic_CO2sent_out_with_straw) | [kg CO2] kg carbon correction factor for the determning product (chickpea) straw - |
| Fresremaining | 0.5 | — | (1,3,2,1,1,na) - Fraction remaining at the time of burning for the AER - NIR 2023 (DCCEEW, 2025). |
| Burn_efficiency | 0.96 | — | (2,3,2,3,1,na) - Default burning efficiency for residue from crop - NIR 2023 (DCCEEW, 2025). |
| All_Straw_Eco | 0.29099869924464766 | (m_straw*P_straw)/(P_Straw*m_straw+m_grain*P_Crop)*100 | Economic allocation fraction for straw |
| Carbon_Residue_remaining | 1561.3353792960006 | Yield*Res_crop*((1-Fburnt-Fremoved))*DM_residue*CC_residue*44/12 | [kg CO2] Carbon emission from residue remaining - |
| Carbon_Absorb_Crop | 1188.8498453333336 | (((Yield-seed_input)*DM_crop*CC_crop))*44/12 | [kg CO2] Carbon dioxide absorbtion in grain net grain production (excluding seed input) kg - |
| All_Grain | 99.70900130075535 | iff(Allocation=2; All_EN; iff(Allocation =3; All_Mass;All_Eco)) | Allocation to wheat - |
| Carbon_Absorb_Residue | 1734.8170881066671 | (Yield*Res_crop*DM_residue*CC_residue)*44/12 | [kg CO2] Carbon dioxide absorbtion in residue production - |
| Carbon_balance | 45.86578810219896 | Carbon_Absorb_Crop+Carbon_Absorb_Residue-Carbon_burning-Carbon_not_burnt_in_burn_deg-Carbon_deg_before_burn-Carbon_Residue_remaining-Carbon_Grain-Carbon_Straw-Carbon_monoxide_in_burn-Methane_in_burn | Balance check of all biogenic carbons. - |
| ED_Crop | 18.4 | — | (1,1,3,3,2,na) -[MJ/kg DM ] Energy density of chickpea crop - Feedipedia |
| Lime_purity | 0.9 | — | (2,1,1,1,1,na) - fractional purity of limestone NIR 2023 (DCCEEW 2025). |
| Res_crop | 1.37 | — | (1,3,2,1,1,na) - [kg crop residue/kg crop]] Residue/crop ratio for chickpea - NIR 2023 (DCCEEW, 2025). |
| P_Straw | 20.0 | — | (4,1,1,2,1,na) -[AUD] Australian dollars per tonne - |
| All_Straw_Mass | 5.515048325959112 | (straw_DM)/(straw_DM+grain_DM)*100 | Mass allocation fraction for straw |
| Biogenic_CO2sent_out_with_straw | 3.4696341762133347 | (Carbon_Grain+Carbon_Straw+Biogenic_carbon_Allocation_adjust_grain)*All_straw/100 | [kg CO2] biogenic carbon exported in chickpea straw - |
| EFburn_CH4 | 0.004 | — | (2,3,2,3,1,na) - [Gg element in species/Gg element in fuel burnt] Emission factor from crop residues burning for CH4 - NIR 2023 (DCCEEW, 2025). |
| Methane_in_burn | 0.19985092854988804 | Yield*Res_crop*Fresremaining*DM_crop*Burn_efficiency*Fburnt*CC_residue*EFburn_CH4*44/12 | [kg CO2] Methane as CO2 for balance purposes - |
| OTHERDATA | 1.0 | — | OTHER DATA - - |
| Biogenic_CO2sent_out_with_grain | 1254.5810594652817 | (Carbon_Grain+Carbon_Straw)*All_Grain/100 | [kg CO2] biogenic carbon exported in chickpea - |
| Carbon_deg_before_burn | 52.044512643200015 | Yield*Res_crop*Fburnt*(1-Fresremaining)*DM_residue*CC_residue*44/12 | [kg CO2] Carbon emission from residue set to be burnt by degraded before burn - |
| All_Mass | 94.4849516740409 | (grain_DM/(straw_DM+grain_DM))*100 | Mass allocation fraction for the primary crop |