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Studies of Nitrous Oxide Emission from Farmlands in North China


doi: 10.1007/BF02656974

  • Measurements of nitrous oxide emission from agricultural lands were conducted. The results show that nitrous oxide fluxes on several soils are at the range of 2-60 μg . N / m2 h. Factors influencing the production rates of nitrous oxide from the soils, such as soil temperature, soil moisture and fertilization, are discussed. The calculated amount of nitrous oxide emission from China farmlands is 9.8 × 107 Kg . N per year, which accounts for about 10% of the total source strength in China areas.
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Manuscript History

Manuscript received: 10 October 1993
Manuscript revised: 10 October 1993
通讯作者: 陈斌, bchen63@163.com
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Studies of Nitrous Oxide Emission from Farmlands in North China

  • 1. Research Center for Eco-environmental Sciences, Chinese Academy or Sciences, Beijing 100085,Research Center for Eco-environmental Sciences, Chinese Academy or Sciences, Beijing 100085,Research Center for Eco-environmental Sciences, Chinese Academy or Sciences, Beijing 100085,Institute of Agricultural Modernization, Chinese Academy of Sciences, Shijazhuang 050021, Hebei Province,Institute of Agricultural Modernization, Chinese Academy of Sciences, Shijazhuang 050021, Hebei Province

Abstract: Measurements of nitrous oxide emission from agricultural lands were conducted. The results show that nitrous oxide fluxes on several soils are at the range of 2-60 μg . N / m2 h. Factors influencing the production rates of nitrous oxide from the soils, such as soil temperature, soil moisture and fertilization, are discussed. The calculated amount of nitrous oxide emission from China farmlands is 9.8 × 107 Kg . N per year, which accounts for about 10% of the total source strength in China areas.

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