水电相比火电,具有减排护林、防洪灌溉等综合效益。沿长江顺流而下可以发现,在持续高强度大开发之后,长江流域特别是支流涉水工程多如牛毛。一些电站改变了河流形态和径流基本特征,对生态环境构成的负面影响比较明显。 Hydropower Compared to thermal power, with emission reduction forest protection, flood control irrigation and other comprehensive benefits. Down the Yangtze River, we can see that after the continuous development of high intensity, the Yangtze River basin, especially the tributary wading projects, are numerous. Some power stations have changed the basic features of river shape and runoff and have obvious negative impacts on the ecological environment.