%0 Journal Article
%T Simulation of Nitrogen and Phosphorus Loss in Siling Reservoir Watershed with AnnAGNPS<br>基于AnnAGNPS模型四岭水库小流域氮磷流失特征的模拟研究
%A BIAN Jin-yun
%A WANG Fei-er
%A YANG Ji
%A YU Jie
%A LOU Li-ping
%A YU Dan-ping
%A <br>边金云
%A 王飞儿
%A 杨佳
%A 俞洁
%A 楼莉萍
%A 俞丹萍
%J 环境科学
%D 2012
%I 
%X By using annual agricultural non-point source model (AnnAGNPS), this study simulated the export loading of nitrogen and phosphorus in Siling Reservoir watershed in Tiaoxi Basin, and integrated with the simulation results, the spatial distribution characteristics of non-point source pollution in the watershed was analyzed. The result showed that the export loading of nitrogen and phosphorus had similar characteristics: in the study area, the export loading of nutrients were higher in southern and western regions and lower in northern and eastern regions. Forest land mainly made up of bamboo was the main export source of nitrogen and phosphorus loading with the contribution above 90% of nutrient load of whole watershed. Three fertilization practices such as no fertilizer (CK), site-specific nutrient management (SSNM) and farmers' fertilizaction practice (FFP) were used in the scenario analysis. The scenario analysis showed that to a certain degree, SSNM could reduce the nitrogen and phosphorus loss. Comparing with FFP, the reduction of SSNM in dissolved nitrogen (DN), particle nitrogen (PN), dissolved phosphorus(DP) and particle phosphorus(PP) was 8.17%, 4.33%, 9.08% and 1.02%, respectively.
%K AnnAGNPS model
%K watershed
%K agricultural non-point source
%K nutrient pollution
%K scenario analysis<br>AnnAGNPS模型
%K 小流域
%K 农业非点源
%K 氮磷污染
%K 情景分析
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=669A8D56CCC2B6A1B36E14054EEE9E43&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=5D311CA918CA9A03&sid=FA0A5F1F767C1320&eid=F5D0A1CC082636E5&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=32