AGNPS模型在小流域农业非点源污染中的应用  

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

作　　者：孟春红[1] 赵冰[1] 

机构地区：[1]武汉大学资源与环境科学学院,武汉430072

出　　处：《长江科学院院报》2008年第4期24-27,32,共5页Journal of Changjiang River Scientific Research Institute

基　　金：国家自然科学基金项目(50239050)

摘　　要：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。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（a- gricultural non-point source） model is a computer model specialized for simulating soil erosion, nutrient drain and predicting agricultural non-point source pollution of a sub-watershed. Wuchuan catchment in the upstream of Jiulong River was sdected as a study site. The AGNPS modal was adopted to simulate agricultural non-point source pollution. According to actual data, the AGNPS model was confirmed to be suitable in this basin. The studies show that predicted results coincide with observed results, so the paper suggests that this model is suitable for prediction and assessment of nitrogen and phosphorus losses in red soil hilly areas, southern China.

关 键 词：五川流域 农业非点源 AGNPS模型 污染负荷 氮磷的流失 

分 类 号：X52[环境科学与工程—环境工程]