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水是人类生活和生产劳动必不可少的重要物质,也是整个生态系统的重要组成要素。水资源是一种可再生性资源,能供人类永续开发利用,但应指出,水资源的可再生性并不意味着它是取之不尽用之不竭的资源,无限的水循环和有限的大气降水补给,规定了区域水资源量的有限性。但是随着人类的发展,需要用水的地方又很多,如农业灌溉、航运、发电等。这时候水资源的有限性和水的多种用途两者之间就出现矛盾,该如何协调这种矛盾呢?这是人类现在面临的一大问题。
Water is an essential material for human life and productive labor. It is also an important component of the entire ecosystem. Water resources are a renewable resource that can be sustainably used and developed by human beings. However, it should be pointed out that the renewable nature of water resources does not mean that it is an inexhaustible resource, an infinite water cycle and a limited Of the atmospheric precipitation recharge, provides a limited amount of regional water resources. However, with the development of mankind, there are many places that need water, such as agricultural irrigation, shipping, power generation and so on. At this time, there are contradictions between the limited water resources and the diversified uses of water. How to coordinate such contradictions? This is a major issue human beings now face.