Measurement of N2O Evolved by Soil in Situ

Abstract

Abstract: Recently-documented increases in atmospheric N₂O concentrations have stimulated substantialinterests for measuring the rate of N₂O flux from terrestrial sources to the atmosphere.Microbial nitrification-denitrification process appears to be the major source of global N₂Oflux.In this experiment,an apparatus is used for measuring N₂O evolved by soil in Situ,based on the inhibition of the reaction N₂O→N₂ by acetylene.The experimental results obtained under field conditions are presented,showing the appratus to be highly sensitive,reproducible and suitable for use in fields.

Key words: CO₂ concentration, Soil biochemical characteristics, Soil microbial biomass C, Cellulose decomposition efficiency, Catalase activity

Chen Guanxiong, Shang Shuhui, Wu Jie, Hu Liansheng, Yu Adong. Measurement of N₂O Evolved by Soil in Situ[J]. cje, 1990, (2): 59-62.

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Measurement of N₂O Evolved by Soil in Situ

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