因水利水电工程的兴建而引起的环境问题,早已为人们所共知和关注。诸如:水文状态的变化、泥沙淤积、河道冲淤、库区淹没、移民安置、诱发地震……等等。改变自然环境,它是以舍弃某些自然环境、社会环境或土地等为代价的。随着水资源开发程度的提高,工程规模的不断扩大,从单一水库到梯级开发、从流域的开发到跨流域引水,对自然环境的冲击就大大超越了以往所建工程的力量,也远远超出了上述为人们所共知的范围,因而向人们提出丁环境水利的新问题。要求在选择开发方案和修建水利工程的同时,必须研 The environmental problems caused by the construction of water conservancy and hydropower projects have long been known and concerned by people. Such as: changes in hydrological status, sedimentation, river erosion and deposition, reservoir inundation, resettlement, induced earthquakes ...... and so on. Change the natural environment, it is to abandon some of the natural environment, social environment or land for the price. With the improvement of the level of water resources development and the continuous expansion of the project scale, the impact on the natural environment from a single reservoir to cascade development, from basin development to diversion across the basin has greatly exceeded the strength of previous construction projects and far Beyond the well-known scope of the above, and therefore to the people put forward the new problems of environmental water conservancy. Requirements in the choice of development programs and construction of water conservancy projects at the same time, we must research