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Mechanisms, rates and assessment of N_2O in groundwater, riparian zones and rivers

机译:地下水,河岸带和河流中N_2O的机制,发生率和评估

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摘要

Much of the fertilizer and manure nitrogen (N) that is applied to crop fields leaves the field in runoff and leaching to groundwater. This N is transformed as it moves across the landscape through riparian zones, rivers and estuaries and nitrous oxide (N_2O) is produced along the way. In this paper, we 1) discuss the mechanisms that lead to these "indirect" N2O emissions, 2) describe the Intergovernmental Program on Climate Change (IPCC) methodology for assessing these emissions, 3) review the data in support of the methodology, 4) discuss implications for mitigation and 5) summarize with a case study for the nation of Denmark.
机译:施用于农田的大部分肥料和肥料氮(N)离开田地,径流并淋到地下水。当氮穿过河岸带,河流和河口穿越景观时,氮会发生转化,并在此过程中产生一氧化二氮(N_2O)。在本文中,我们1)讨论了导致这些“间接” N2O排放的机制,2)描述了评估这些排放的政府间气候变化计划(IPCC)方法,3)审查了支持该方法的数据,4 )讨论缓解措施的意义,并5)总结丹麦国家的案例研究。

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