期刊名称：Journal of Integrative Environmental Sciences
印刷版ISSN：1943-815X
电子版ISSN：1943-8168
出版年度：2010
卷号：7
期号：Supp 1
页码：223-234
DOI：10.1080/19438151003621342
出版社：Taylor & Francis
摘要：Abstract A European Union (EU-27) wide N 2 O emission estimate for the agricultural sector is presented, using the INTEGRATOR model, combined with detailed GIS-based environmental data and farming data. INTEGRATOR links various modules, calculating NH 3 , NO x , N 2 O, CO 2 , and CH 4 emissions from housing and manure storage systems, agricultural and non-agricultural soils and surface waters, while accounting for the interaction between agricultural and non-agricultural systems through an emission-deposition model for NH 3 and NO x . This study is limited to N 2 O emissions from housing and manure storage systems and agricultural soils. All emissions are based on N 2 O emission factors which depend on environment (weather and soil conditions), land use (grassland, arable land, crop residues), and management (type of manure and fertilizer, etc). We assessed the plausibility by a comparison of calculated present nitrous oxide emissions at country level with those derived by more simple emission factor approaches and detailed ecosystem models. The model was used to assess the impact of various farming practice packages to mitigate N 2 O emissions. For the agricultural sector of the EU-27, a total N 2 O emission of 347 kton N 2 O‒N is calculated for the year 2000, which is comparable to other estimates. The overall achievable reduction in N 2 O emissions with the evaluated mitigation measures is about 25%. For the EU-27, the most effective measures are balanced fertilization and maximum manure application, but this is highly variable per country.
关键词：modeling; nitrogen; green house gases; land use; land management; farming practice
