Last reviewed on 06-22-2018

Documentation of California's Greenhouse Gas Inventory (11th Edition - Last updated on 11-06-2019)

♦ 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 : Orchard & Vineyard

♦ Activity: Crop acreage burned - Almond

♦ Greenhouse gas: Carbon dioxide from biogenic sources ( CO2 )

► Year 2009 —

● Greenhouse gas emission estimate —

Amount: 883,161 tonnes of CO2 From biogenic materials (883,161 tonnes CO2 Eq.)
Basis: Calculation
Calculation: [Crop acreage burned] * [Acre to hectare conversion] * [Crop residue] * [CO2 emission factor]
Reference: ARB (2016). Technical support document on GHG inventory methodologies for the 2000-2014 inventory. See Discussion of emissions from agricultural residue burning available at: ttps://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf#https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf

● Activity level used in calculations —

Activity: Crop acreage burned = 630,000 acre of Almond
Basis: Calculation
Calculation: [Crop acreage] * [Fraction of acreage burned]
Reference: ARB (2016). Technical support document on GHG inventory methodologies for the 2000-2014 inventory. See Discussion of emissions from agricultural residue burning available at: ttps://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf#https://ww3.arb.ca.gov/cc/inventory/pubs/reports/2000_2014/ghg_inventory_00-14_technical_support_document.pdf
Reference: Not Applicable.

● Parameters and Constants used in calculations —

Parameter: CO2 emission factor = 1.83
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). /research/single-project.php?row_id=55021
Parameter: Crop acreage = 750,000 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 = 1,890,000 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 = 0.84
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.
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

● Greenhouse gas from biogenic materials per unit activity (derived from values listed above) —

Amount: 1,401,843 g (i.e. 1.4 tonnes) of CO2 per acre of Almond
preload