流域侵蚀产沙模型与农业面源污染模型研究综述

Summary of Study on Basin Sediment Yield of Erosion Model and Agricultural Area-Source Pollution Model

土壤侵蚀和农业面源污染是普遍存在的一种现象。国外对于侵蚀产沙的研究开始较早,目前已经有一些成熟的分布式产沙模型,而且有一些成熟的分布式产沙模型已经耦合了农业面源污染模型。国内对侵蚀产沙模型的研究起步较晚,农业面源污染模型只有一些统计型模型,尚没有侵蚀产沙和农业面源污染相结合的模型。系统评述了当前的侵蚀产沙模型和农业面源污染模型,并对存在的问题、今后的发展方向及GIS、RS技术在该领域的应用等提出了一些看法。

Soil erosion and agricultural area-source pollution are commonly existed phenomenon.The study on sediment yield of erosion in foreign countries starts earlier.At present,there are some matured distributed models of sediment yield and some matured distributed models have coupled with agricultural area-source pollution model.The study on sediment yield model of erosion in China starts later.There are only some statistical models for agricultural area-source pollution and no integration model of sediment yield with agricultural area-source pollution yet.It systematically reviews the current sediment yield model and agricultural area-source pollution model and puts forward opinions on the existing problems,future development orientation and the application of GIS and RS techniques to the realm.