%0 Journal Article
%T Validation of an agricultural non-point source (AGNPS) pollution model for a catchment in the Jiulong River watershed, China<br>Validation of an agricultural non-point source （AGNPS） pollution model for a catchment in the Jiulong River watershed, China
%A LIU Jianchang
%A ZHANG Luoping
%A ZHANG Yuzhen
%A HONG Huasheng
%A DENG Hongbing
%A <br>LIU Jianchang
%A ZHANG Luoping
%A ZHANG Yuzhen
%A HONG Huasheng
%A DENG Hongbing
%J 环境科学学报(英文版)
%D 2008
%I 
%X This study tested and evaluated the agricultural non-point source(AGNPS)model for the Wuchuan catchment, a typical agricultural area in the Jiulong River watershed, Fujian Province. China. The AGNPS model was calibrated and validated for the study area with observed data onten storms. Thedata on eight stormsin 2002 were used for calibration while data on two stormswere used for validation of the model. Considering the lack of water quality data over a long-term series, a novel method, comparing an internal nested catchment with its surrounding catchment, was used to supplement the less long-term series data. Dual calibration and validation of the AGNPS model was obtained by this comparison. The results indicate that the correlation coefficients were 0. 99 and 0. 98 for runoff, 0. 94 and 0. 95 forthe peak runoff rate of the large catchment and the small catchment, respectively, and 0. 76 forthe sediment of the small catchment only. Each pair of correlation coefficients is homogeneous for the same event for the two catchments. With the exception of the sediment yield and particulate phosphorus, the peak nmofr rate and other nutrients were well predicted. Sensitivity analysis showed that the Soil Conservation Service curve number and rainfall quantity were the most sensitive parameters, which resulted in high output variations. Erosivitv and other parameters had little influence on the hydrological and quality outputs.
%K non-point source pollution
%K agricultural non-point source(AGNPS)
%K agriculture
%K runoff
%K nitrogen
%K phospborus
%K sediment<br>农业
%K 水源污染
%K 环境管理
%K 河流污染
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=6CB1530875F53489BF1E81BD87B7F5E6&aid=DFF3BC8615F1607A42ECBF65D77C1988&yid=67289AFF6305E306&vid=A04140E723CB732E&iid=94C357A881DFC066&sid=4158386E7B9422C8&eid=6EEC242D0D8BE428&journal_id=1001-0742&journal_name=Journalofenvironmentalsciences(China)&referenced_num=2&reference_num=44