流域尺度的河流生态修复

River rehabilitation on watershed scales

在对河流生态修复相关理念进行阐述的基础上,讨论了河流连续体概念和河流四维模型.从人类活动影响的大尺度特征、河流特性、河流水污染、水陆交错带几个方面对在流域尺度下进行河流生态修复的必要性进行了分析探讨,并指出我国现阶段河流修复中的首要任务是遏制流域内引起生态系统退化的水污染.

River continuum conception and river four-dimensional model are reviewed. Based on these concepts, the necessities for river rehabilitation on watershed scales are discussed in the four aspects of large-scale characteristics of human activities, river characteristics, water pollution, buffer strips. It is pointed out that at present stage the priority tasks in river rehabilitation of China should be put on the control of water pollution in watershed that causes degradation of ecosystem.