Last reviewed on November 2, 2011 at 10:05
Documentation of California's Greenhouse Gas Inventory
(First Edition - Last updated on 11/19/2007)
♦ 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 : Histosol Cultivation : Direct |
♦ Activity: Histosols cultivation -
♦ Greenhouse gas: Nitrous oxide ( N2O )
► Year 1990 —
● Greenhouse gas emission estimate —
Amount: |
584.55 tonnes of N2O Emitted (181,210 tonnes CO2 Eq.) |
Basis: |
Calculation |
Calculation: |
([Histosols cultivation] * [Acre to Hectare conversion]) * [Nitrogen emitted as N2O] * [Molecular weight ratio of N2O to N2] |
Reference: |
USEPA (2004). Emission Inventory Improvement Program. Technical Report Series, Volume 8: Estimating Greenhouse Gas Emissions, Chapter 10: Agricultural Soil Management. US Environmental Protection Agency. Washington DC. http://www.epa.gov/ttn/chief/eiip/techreport/volume08/index.html |
● Activity level used in calculations —
Activity: |
Histosols cultivation = 114,921 ha |
Basis: |
Calculation |
Calculation: |
[Total histosols] * [Cultivation rate of histosols] |
Reference: |
CEC (2002). Inventory of California Greenhouse Gas Emissions and Sinks: 1990-1999. Publication #600-02-001F. November 2002. California Energy Commission, Sacramento. http://www.energy.ca.gov/reports/600-02-001F/2002-09-14_600-02-001F.PDF |
● Parameters and Constants used in calculations —
Parameter: |
Cultivation rate of histosols = 0.9 |
Reference: |
Simpson (2001). Personal communication between Pat Stiefer of Sonoma Technologies and David Simpson, San Joaquin Field Office of USDA's Natural Resources Conservation Service, October 2001. |
Parameter: |
Nitrogen emitted as N2O = 8,000 g / ha |
Reference: |
IPCC (2006). 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Prepared by the National Greenhouse Gas Inventories Programme, Eggleston H.S., Buendia L., Miwa K., Ngara T., and Tanabe K. (eds). Volume 2, Chapter 2: Energy. http://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/2_Volume2/V2_2_Ch2_Stationary_Combustion.pdf |
Parameter: |
Total histosols = 127,690 acre |
Reference: |
Vinson, E. (2001). Personal communication between Pat Stiefer of Sonoma Technologies and Eric Vinson, State Soil Scientist, California office of USDA's Natural Resources Conservation Service, October 2001. |
Constant: |
Acre to hectare conversion = 0.404685642 |
Reference: |
NIST (1995). Guide for the Use of the International System of Units (SI). Barry N. Taylor (Ed.). NIST Special Publication 811. Appendix B8. National Institute of Standards and Technology, Gaithersburg, MD. The 2008 Edition is available at: http://physics.nist.gov/cuu/pdf/sp811.pdf |
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: |
Global warming potential of N2O = 310 |
Reference: |
IPCC (1996). Second Assessment Report. Climate Change 1995: WG I - The Science of Climate Change. Intergovernmental Panel on Climate Change; J.T. Houghton, L.G. Meira Filho, B.A. Callander, N. Harris, A. Kattenberg, and K. Maskell (eds.); Cambridge University Press. Cambridge, U.K. |
● Greenhouse gas emitted per unit activity —
Amount: |
5,087 g (i.e. 5.09 kg) of N2O per ha 1,576,822 g (i.e. 1.58 tonnes) of CO2eq. per ha |