DOI: 10.1002/gbc.20087
Scopus记录号: 2-s2.0-84884491419
论文题名: Global modeling of soil nitrous oxide emissions from natural processes
作者: Saikawa E ; , Schlosser C ; A ; , Prinn R ; G
刊名: Global Biogeochemical Cycles
ISSN: 8866236
出版年: 2013
卷: 27, 期: 3 起始页码: 972
结束页码: 989
语种: 英语
英文关键词: emission
; modeling
; nitrous oxide
; soil
Scopus关键词: Carbon and nitrogen
; Community land models
; Emissions inventory
; Higher latitudes
; Nitrous oxide
; Nitrous oxide emissions
; Process-based modeling
; Soil temperature
; Estimation
; Greenhouse gases
; Models
; Neutron emission
; Nitrogen oxides
; Soils
; biogeochemistry
; El Nino
; greenhouse gas
; La Nina
; nitrous oxide
; numerical model
; soil emission
; Africa
; Amazonia
; Asia
; Central America
; Europe
; North America
; Pacific Ocean
; Pacific Ocean (Tropical)
英文摘要: Nitrous oxide is an important greenhouse gas and is a major ozone-depleting substance. To understand and quantify soil nitrous oxide emissions, we expanded the Community Land Model with coupled Carbon and Nitrogen cycles version 3.5 by inserting a module to estimate monthly varying nitrous oxide emissions between 1975 and 2008. We evaluate our soil N2O emission estimates against existing emissions inventories, other process-based model estimates, and observations from sites in the Amazon, North America, Central America, Asia, Oceania, Africa, and in Europe. The model reproduces precipitation, soil temperature, and observations of N2O emissions well at some but not at all sites and especially not during winter in the higher latitudes. Applying this model to estimate the past 24 years of global soil N2O emissions, we find that there is a significant decrease (increase) in soil N2O emissions associated with El Niño (La Niña) events. Key Points We incorporated the DNDC module in the Community Land ModelModel results reproduce the observations in the tropics wellSoil N2O emissions are lower in El Nino and higher in La Nina years © 2013. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/77573
Appears in Collections: 气候变化事实与影响
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作者单位: Center for Global Change Science, Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, United States; Department of Environmental Studies, Emory University, Math and Science Center, 5th 400 Dowman Drive, Atlanta, GA 30322, United States
Recommended Citation:
Saikawa E,, Schlosser C,A,et al. Global modeling of soil nitrous oxide emissions from natural processes[J]. Global Biogeochemical Cycles,2013-01-01,27(3)