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近年来,因非点源污染造成水体氮磷富营养化的现象日渐增多,而传统的治理方式在非点源污染物的控制上又收效甚微。本文归纳分析了目前国内外关于森林生态系统对非点源污染控制的研究成果,结果发现:森林生态系统主要通过植物体吸收,地被物和土壤层对非点源污染物的吸附等起到净化作用;大量研究表明,森林对N、P等非点源污染物的净化效果明显,削减率多界于60%～90%之间;此外,森林对非点源污染物的削减效果受林带宽度、植被状况、土壤性状、森林经营等因素的影响。
In recent years, due to non-point source pollution caused by water and nitrogen and phosphorus eutrophication increasing phenomenon, and the traditional treatment methods in the control of non-point source pollutants with little effect. This paper summarizes the current domestic and foreign research results on the control of non-point source pollution by forest ecosystems. The results show that: the forest ecosystem mainly absorbs non-point source pollutants through the absorption of plant body, soil layer and soils Purification effect; a large number of studies have shown that the forest of N, P and other non-point source pollutants purification effect is obvious, the cut rate of more than 60% to 90%; in addition, the reduction of non-point source pollutants in forests by Lin Belt width, vegetation status, soil properties, forest management and other factors.