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: |
3C4 - Aggregate Sources and Non-CO2 Emissions Sources on Land - Direct N2O Emissions from Managed Soils |
Sector: |
Agriculture & Forestry : Ag Soil Management : Fertilizer : Direct |
♦ Activity: Nitrogen applied in fertilizer - Organic fertilizers
♦ Greenhouse gas: Nitrous oxide ( N2O )
► Year 2004 —
● Greenhouse gas emission estimate —
Amount: |
34.45 tonnes of N2O Emitted (10,266 tonnes CO2 Eq.) |
Basis: |
Calculation |
Calculation: |
[Nitrogen applied in fertilizer] * [Short ton to gram conversion] * [Nitrogen emitted as N2O] * [Molecular weight ratio of N2O to N2] |
Reference: |
IPCC (2006). 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Prepared by the National Greenhouse Gas Inventories Programmed, Eggleston HAS., Biennia L., Miwa K., Negara T. and Tanabe K. (eds). Vol.4, Chap. 11: Managed Soils. Published: IGES, Japan. https://www.ipcc-nggip.iges.or.jp/public/2006gl/vol4.html |
● Activity level used in calculations —
Activity: |
Nitrogen applied in fertilizer = 2,417 ton of Organic fertilizers |
Basis: |
Data |
Reference: |
CDFA (various years). Fertilizing Materials Tonnage Report, (published bi-annually). California Department of Food and Agriculture. http://www.cdfa.ca.gov/is/ffldrs/Fertilizer_Tonnage.html |
● Parameters and Constants used in calculations —
Parameter: |
Nitrogen emitted as N2O = 0.01 g / g |
Reference: |
IPCC (2006). 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Prepared by the National Greenhouse Gas Inventories Programmed, Eggleston HAS., Biennia L., Miwa K., Negara T. and Tanabe K. (eds). Vol.4, Chap. 11: Managed Soils. Published: IGES, Japan. https://www.ipcc-nggip.iges.or.jp/public/2006gl/vol4.html |
Constant: |
Molecular weight ratio of N2O to N2 = 1.571133815 |
Reference: |
IUPAC (2006). Atomic Weights of the Elements 2005 (IUPAC Technical Report). Pure Appl. Chem., Vol. 78, No. 11, pp. 2051–2066, 2006. |
Constant: |
Short ton to gram conversion = 907184.7 g / ton |
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 N2O = 298 |
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: |
14,253 g (i.e. 14.25 kg) of N2O per ton of Organic fertilizers 4,247,420 g (i.e. 4.25 tonnes) of CO2eq. per ton of Organic fertilizers |