Abstract:

The city of Yinchuan that located in the northwest of arid and semiarid zones, whether limited water resources can support sustainable economic and social development has become urgent problem. In order to have an effective assessment about the value of aquatic ecosystem, based on the relevant statistical literature, and using shadow price method, replacement cost method, travel cost method and recovery fees and other methods, the author evaluated the value of aquatic ecosystem service of Yinchuan. The results showed that: (1) from 2003 to 2008, as urban industrial water, living water consumption increased every year, the value of urban water supply increased year by year. In the future, with the development of industrialization and urbanization, the population scale and economic scale would expand rapidly, the amount of industrial water and domestic water would continue to be accelerated. (2) The proportion of urban water supply and recreational value of the GDP appeared a declining trend. This showed that the value of aquatic ecosystem seriously fell behind economic development, its contribution to the GDP was become more and more small.