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: 3C5 - Aggregate Sources and Non-CO2 Emissions Sources on Land - Indirect N2O Emissions from Managed Soils
Sector: Agriculture & Forestry : Ag Soil Management : Fertilizer : Indirect

♦ Activity: Nitrogen applied in fertilizer - Synthetic fertilizers

♦ Greenhouse gas: Nitrous oxide ( N2O )

► Year 2017 —

● Greenhouse gas emission estimate —

Amount: 2,186 tonnes of N2O Emitted (651,346 tonnes CO2 Eq.)
Basis: Model
Calculation: DeNitrification-DeComposition (DNDC) Model
Reference: Documentation provided in the 2000-2015 inventory updates documentation. See discussion of methods at:

● Activity level used in calculations —

Activity: Nitrogen applied in fertilizer = 471,849 ton of Synthetic fertilizers
Basis: Model
Reference: DATA NOT AVAILABLE - Values were extrapolated from years for which data were available.

● Parameters and Constants used in calculations —

Parameter: Not applicable
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.).

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

Amount: 4,632 g (i.e. 4.63 kg) of N2O per ton of Synthetic fertilizers
1,380,411 g (i.e. 1.38 tonnes) of CO2eq. per ton of Synthetic fertilizers