N2O emissions from regional agricultural lands
A case study of Guizhou Province, southwestern China |
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| Authors: | Wenbin Xu Yetang Hong Xuhui Chen and C S Li |
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| Institution: | (1) Institute for the Study of Earth, Oceans, and Space, Morse Hall, University of New Hampshire, Durham, NH 03824, USA;(2) Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, PO Box 2871, Beijing, 100085, China;(3) Institute for the Study of Earth, Oceans, and Space, Morse Hall, University of New Hampshire, Durham, NH 03824, USA |
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| Abstract: | To preliminarily study N2O emissions and the importance of environmental parameters on N2O flux from subtropical agroecosystem in China, N2O flux measurements were made at three cultivated agricultural lands in Guizhou Province, southwestern China. Based on the
test and validation of daily N2O flux and its several associated variables between DNDC model and field measurements, DNDC model has been employed to estimate
total N2O emissions from entire agricultural lands and its spatial distribution at county scale in Guizhou in 1995, and to assess
the contributions of cropping practices on N2O emissions. |
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