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Evaluation of Nitrogen Loads from Anthropogenic and Natural Sources by an integrated Biogeochemical Modeling Frame
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作者 taikan oki Tomoko Nitta +2 位作者 Hyunjun Kim Shinta Seto Shinjiro Kanae 《地学前缘》 EI CAS CSCD 北大核心 2009年第S1期281-281,共1页
This study proposed an integrated biogeochemical modeling of nitrogen load from anthropogenic and natural sources in Japan.Firstly,the nitrogen load(NL) from different sources such as crop,livestock,industrial plant,u... This study proposed an integrated biogeochemical modeling of nitrogen load from anthropogenic and natural sources in Japan.Firstly,the nitrogen load(NL) from different sources such as crop,livestock,industrial plant,urban and rural resident was calculated by using datasets of fertilizer utilization,population distribution, land use map,and social census.Then,the nitrate leaching from soil layers in farmland,grassland and natural conditions was calculated by using a 展开更多
关键词 BIOGEOCHEMICAL modeling nitrogen load TERRESTRIAL ECOSYSTEM JAPAN
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