Abstract

China possesses cropland of 1.33 million km 2. Cultivation of the cropland not only altered the biogeochemical cycles of carbon (C) and nitrogen (N) in the agroecosystems but also affected global climate. The impacts of agroecosystems on global climate attribute to emissions of three greenhouse gases, namely carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O).

Department

Earth Sciences, Earth Systems Research Center

Publication Date

9-2003

Journal Title

Quaternary Sciences

Publisher

China Academic Journal Electronic Publishing House

Document Type

Article

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