Abstract:

With the problem of water shortage and water pollution getting more serious,the conflict between supplying and demanding of water resources becoming much fierce day by day,carrying capacity of water resources has been regarded as a significant indicator in measuring regional sustainable development level.Taking the carrying capacity of water resources in Jiangsu Province as the research object,the principal component analysis has been used to evaluate the carrying capacity of water resources form temporal and spatial views.The results show that there are three main factors affecting the carrying capacity of water resources,including economic development factor,population factor and water resources factor.The overall carrying capacity of water resources in Jiangsu Province has showed a trend of steadily increasing during 2000~2009.From the spatial point of view,there are obvious differences among 13 cities.The southern Jiangsu gets the maximum score in evaluating the carrying capacity of water resources,then the middle Jiangsu gets the lower level,and the northern Jiangsu gets the lowest level.This is mainly due to the imbalance of the economy development and the water resources condition.In order to ensure sustainable socioeconomic development,some countermeasures must be done to utilize the water resources reasonably and efficiently,and exploit the water resources to its full potential