AGNPS模型在小流域农业非点源污染中的应用

 九龙江是龙岩、漳州和厦门3市的饮用水源，同时该流域又是近海流域。目前流域的农业非点源污染比较突出，因此，对九龙江流域农业非点源污染的研究，具有重要的现实意义和理论价值。AGNPS模型是美国研制的、专用于模拟小流域土壤侵蚀、养分流失和预测评价农业非点源污染状况的计算机模型。在九龙江上游遴选了一个典型农业流域——五川流域，将AGNPS模型全面、系统地引入到五川流域的农业非点源污染的模拟研究中。利用流域实测的数据，验证了AGNPS模型在该流域的适宜性。研究结果表明，模拟值与实测值基本相符，相关程度较高，该模型可以用于南方丘陵区小流域氮、磷流失的预测与评价。

Analysis on Agricultural Non-point Source Pollution in Sub-watershed with Agricultural Non-point Source Model

Jiulong River is an important drinking water source for the cities of Longyan,Zhangzhou and Xiamen.At the same time,this basin is also a coastal one.At present,non-point source pollution, especially agricultural non-point source pollution in the upstream has been particularly significant,so this study on agricultural non-point source pollution in Jiulong River basin has important realistic meaning and theoretic value.AGNPS(agricultural non-point source) model is a computer model specialized for simulating s...