植被过滤带防治农业面源污染研究进展

农业面源污染是水体富营养化的重要污染源,它引起的水体污染显著超过城市生活污染源和工业点源污染。植被过滤带介于水体和陆域之间,在流域生态系统中发挥着重要的作用,可有效减少径流量及其中的污染物,在防治水体富营养化和农业面源污染方面具有显著作用,是控制农业面源污染的最佳措施之一。综述了植被过滤带对径流中污染物的净化效果、净化机理、植被过滤带的最佳宽度及长期有效性的研究进展,以期为植被过滤带技术的应用和推广提供理论依据和参考。

Research Progresses in Control of Agricultural Non-point Pollution by Vegetative Filter Strips

The agricultural non-point source pollution has exceeded urban and industrial non-point source pollution,and becomes the most important source of water pollution in China.Therefore,how to reduce these pollution flowing into water body is a major factor in the control of agricultural non-point source pollution.Vegetative filter strips locating between water and land area plays an important role in river ecosystem as it could significantly reduce the pollutants in runoff and regarded as one of the best manage practices in the control of agricultural non-point source pollution.In this paper,we reviewed the effects and mechanisms of vegetative filter strips on the removing of the pollutants in runoff,the best width of vegetative filter strip and its long-term effectiveness.This review might be very helpful for the application and extension of vegetative filter strips.