摘要
阐述了最重要的温室效应气体N2O的来源,湖泊中N2O产生机理,监测了太湖水—气界面四季N2O日通量,并分析了N2O日通量变化特征,发现太湖大部分时间是N2O的源,少部分时间是N2O的汇。春、夏、秋、冬四季的平均N2O日通量分别是0.018 mg/(m2.h)、0.065 mg/(m2.h)、0.003 mg/(m2.h)和-0.002 mg/(m2.h)。夏季较高,而春、秋、冬季较低。
As one of the important of greenhouse gases, the source of nitrous oxide is describod, as well as the producing mechanism, the nitrous oxide flux at water - air interface in Taihu Lake is inspected and the daily change characteristics of nitrous oxide flux in the four seasons are analyzed. The results show that the Taihu lake is the resource of nitrous oxide at most time and the collection at shorttime. Nitrous oxide fluxes in spring, summer, autumn and winter are 0.018 mg/（m^2·h）, 0.065 mg/（m^2·h）, 0.003 mg/（m^2·h） and - 0.002 mg/（m^2·h） respectively. Nitrous oxide flux in summer is high, but low in other seasons.
出处
《工业安全与环保》
2007年第8期49-51,共3页
Industrial Safety and Environmental Protection
关键词
水-气界面
N2O通量
太湖
温室气体
源和汇
water - air interface nitrous oxide Taihu Lake greenhouse gas the resource and the collection
