Last reviewed on 12-01-2023
Documentation of California's Greenhouse Gas Inventory
(2023 Edition - Last updated on 12-1-2023)
♦ Category: Agriculture, Forestry and Other Land Use
IPCC: |
3C1b - Aggregate Sources and Non-CO2 Emissions Sources on Land - Emissions from Biomass Burning - Biomass Burning in Croplands |
Sector: |
Agriculture & Forestry : Ag Residue Burning : Field Crops |
♦ Activity: Crop acreage burned - Rice
♦ Greenhouse gas: Methane ( CH4 )
► Year 2020 —
● Greenhouse gas emission estimate —
● Activity level used in calculations —
● Parameters and Constants used in calculations —
Parameter: |
CH4 emission factor = 7.200E-04 |
Reference: |
Jenkins, B.M. et al. (1996). Atmospheric Pollutant Emission Factors from Open Burning of Agricultural and Forest Biomass by Wind Tunnel Simulation. California Air Resources Board, A932-126, April 1996. (see in particular Tables 4.1.1 - 4.1.8). http://www.arb.ca.gov/research/single-project.php?row_id=55021 |
Parameter: |
Crop acreage = 514,000 acre |
Reference: |
USDA (2016). U.S. Department of Agriculture, National Agricultural Statistics Service, Quick Stats. Accessed online at: http://quickstats.nass.usda.gov/ |
Parameter: |
Crop residue = 6,750,000 g / ha |
Reference: |
Jenkins, B.M., Turn, S.Q., and Williams, R.B. (1992). Atmospheric Emissions from Agricultural Burning in California: Determination of Burn Fractions, Distribution Factors, and Crop-specific Contributions. Agriculture, Ecosystems and Environment, 38: 313-330. |
Parameter: |
Fraction of acreage burned = 0.0567 |
Reference: |
CARB (2016). Technical support document on GHG inventory methodologies for the 2000-2014 inventory. See Discussion of emissions from agricultural residue burning available at: https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf |
Constant: |
Acre to hectare conversion = 0.4046873 |
Reference: |
NIST (2008). Guide for the Use of the International System of Units (SI). Ambler Thompson & Barry N. Taylor (Ed.). NIST Special Publication 811, 2008 edition. National Institute of Standards and Technology, Gaithersburg, MD. http://physics.nist.gov/cuu/pdf/sp811.pdf |
Constant: |
Global warming potential of CH4 = 25 |
Reference: |
IPCC (2007). Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Solomon S., Qin D., Manning M., Chen Z., Marquis M., Averyt K.B., Tignor M., and Miller H.L. (eds.). http://www.ipcc.ch/publications_and_data/publications_ipcc_fourth_assessment_report_synthesis_report.htm |
● Greenhouse gas emitted per unit activity (derived from values listed above) —
Amount: |
1,967 g (i.e. 1.97 kg) of CH4 per acre of Rice 49,170 g (i.e. 49.17 kg) of CO2eq. per acre of Rice |