一、前言随着生产的发展,人口的增加和集中,人类活动对自然资源和环境的冲击日益加剧;人口、资源、环境三大问题已成为制约社会经济发展的重要因素,影响着人们的生活、健康、甚至贻害于子孙后代,不得不引起我们严重注意。水利建设和生态建设都是人类改造自然、造福人类 I. Introduction With the development of production, the increase and concentration of population, the impact of human activities on natural resources and the environment is aggravating day by day. The three major problems of population, resources and environment have become the important factors restricting the social and economic development and affecting people’s lives , Healthy and even harmful to future generations, have caused us serious attention. Water conservancy construction and ecological construction are mankind to transform nature, for the benefit of mankind