Based On Scale Of Urban Development In The Water Resources System Under Study

With the development of society, the consuming of water resources is rapidly raising and the world is facing to the water resources crisis. Now more than 40 countries are short of water resources; there are more than 400 cities of water shortage and 108 cities of serious water shortage in China. In order to realize urban sustainable development, based on urban water resources system study on urban development scale.Firstly this paper had made analysis of the concept, nature, composing and present conditions of exploiting and utility of water resources. It also has made studying of the existing reasons and resolving way of urban water resources shortage.This paper has analyzed the nature and quantitative description method of the carrying capacity of urban water resources system by means of the systematic study method. Based on thought and theory of balance of water resource system, adopting systematic method to set up a model and forecast urban scale.This paper also has taken the city of KunMing as an example to analyze water resources, population, water supply and drainage, economy development of KunMing and forecast urban scale of KunMing.Finally, basing on the studying and analysis, put forward some suggestion on sustainable development in concordance within water resources and urban scale.