RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2008, Vol. 17 >> Issue (1): 68-68.

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SPATIAL REGIONAL DIFFERENCE OF WATER RESOURCES CARRYING CAPACITY IN GUIZHOU PROVINCE

ZHANG Meiling,LIANG Hong,ZHU An   

  • Received:1900-01-01 Revised:1900-01-01 Online:2008-01-20

Abstract:

Water resources carrying capacity is an important part of all kinds of natural resources of a country or region,and has an important impact on the comprehensive development and development scale of a country or region.Because the water resources carrying capacity is a complex giant system,which is related to population,resources and environment,and socioeconomic development,the authors used state space method to describe the realistic carrying situation of the studying area from comprehensive and macroperspective angle,and represented and analyzed it quantitatively.Taking Guizhou Province as an example,and according to the specific circumstances,9 assessment indexes were selected to constitute the evaluation index system.The weights of the indexes were determined through using the entropy method of reflecting the objective.And then the perfect and realistic states of water resources carrying capacity in Guizhou Province were calculated using state space method.The results showed that the water resources carrying capacity of Guizhou Province is at overloading state at present,and the capacity of water resources carrying demonstrates a certain kind of geographical space feature.According to the comparison of the perfect and realistic state of water resources carrying capacity in Guizhou Province,the province was divided into three types: serious overloading region,fullload region and nonfull load region.The calculated results complied with the actual situation of Guizhou Province,and had practical guiding significance for the sustainable use of water resources of Guizhou Province.

Key words: water resources carrying capacity, spatial difference, karst, the state space method, Guizhou

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