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Non-point source(NPS) water pollution generated by agricultural production has become a major environmental issue in agroforestry watersheds such as the Three Gorges. Landscape ecology emphasizes the regulation and effect of landscape pattern on material flow, energy flow in the ecological processes. This paper reviewed landscape ecological approaches of controlling non-point source pollution in agroforestry watershed of the Three Gorges from the patch level and landscape level. Stage I: landscape ecological investigation. The investigation is to fi gure out landscape pattern characteristics of the watershed, major causes and key sections of the non-point source pollution, 'source' patches and ecological process of non-point source pollution, and the feedback relationship between landscape pattern and non-point source pollution. Stage II: landscape ecological planning. In the patch level, the best management procedures(BMPs) are selected to judge the application effect. In the landscape level, new landscape elements are introduced, 'source' and 'sink' landscape patch types adjusted, landscape level regulation effect assessed. Stage III: landscape ecological management. Small-watershed landscape ecological construction is carried out from patch level and landscape level, BMPs implemented gradually, landscape ecological planning and management integrated, landscape heterogeneity enhanced, intensity of non-point source pollution controlled effectively to achieve sustainable development of small watersheds.
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篇名 Landscape Ecology Researches on the Regulation of Non-point Source Pollution in Agroforestry Watershed
来源期刊 景观研究:英文版 学科 地球科学
关键词
年,卷(期) 2015,(6) 所属期刊栏目
研究方向 页码范围 49-52
页数 4页 分类号 P901
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引文网络交叉学科
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期刊影响力
景观研究:英文版
双月刊
1943-989X
安徽省合肥市庐阳区农科南路40号
出版文献量(篇)
2384
总下载数(次)
3
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0
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