Measurements of atmospheric N_2O concentration and its emission fluxes from soil in China

作     者：王少彬 宋文质 苏维瀚 曾江海 王智平 张玉铭 

作者机构：Research Centre for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China Institute of Agricultural ModernizationChinese Academy of SciencesShijiazhuang 050021China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：1995年第38卷第9期

页      面：1101-1107页

核心收录：

学科分类：0810[工学-信息与通信工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 0708[理学-地球物理学] 09[农学] 0903[农学-农业资源与环境] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 090301[农学-土壤学] 

主　　题：N₂O atmospheric concentration soft N-fertilizer flux. 

摘      要：Air samples in China were collected and determined for the concentration of N2*** production rates of N2O from agricultural soils were measured with the chamber *** results in-dicate that the background concentration of N2O averages（308±5）×10-9in 1989,which is close to that ob-tained at the other background stations ***,at both urban and rural areas,atmospheric N2Oconcentrations are higher.N2O emission fluxes from several farmlands are different and dependent on the fac-tors of agricultural practice and *** their magnitudes are at the same *** calculationshows that the released N2O-N from agricultural sources（cultivated soil and N-fertilizers）amounts to 122Gg/a in China in 1990.