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农业流域河岸缓冲区研究综述

Keywords: 农业流域,河岸缓冲区,功能效益,宽度

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Abstract:

农业流域河岸缓冲区是过滤净化地表、地下径流中沉积物、氮、磷和农药等农业非点源污染的一种有效系统。缓冲区功能效益和最佳宽度随区域变化和管理目标变化,并受地形、水文、植被、土壤及湿地和洪泛区等多因素影响,因此固定宽度的单一缓冲区并不能满足实际多目标管理需求。建议在进一步开发实用可变宽度缓冲区模型的基础上,在所有农业流域河流全程按重要性等级建立河岸缓冲区网络,尽可能设置多区缓冲区系统,并实现优化管理。

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