Study on Decoupling Relationships bBetweenof Water Use and Economic Development in the Provinces of Yunnan and Guizhou during the Ffirst Tten Yyears offor the Great Western Development Strategy
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Abstract:
Based on a systematic summary of the studies on decoupling theory and relevant methods, the decoupling elasticity model is was employed to study investigate the decoupling relationships (DRs)DRs of between total water use (TWU) and provincial GDP, agricultural water use (AWU) and agriculturale added value (AAV), as well asand industrial water use (IWU) and industrial added value (IAV), respectively, which were used in order to comprehensively to analyze the dynamic relationship between water use and economic development of Yunnan and Guizhou provinces during the period from 2001 to 2010, the first ten years for of the Great Western Development Strategy in China. The results indicated that the overall DR betweenof water use and economic development is highly undesirable in both of the two provinces. Specifically, among the three groups of DRs, the DR of AWU is was the worst with strong or weak coupling in half5 of the 10 years in the two provinces; the DR of IWU is slightly better with strong coupling respectively in 3 of the 10 years in Yunnan and in 2 of the 10 years in Guizhou; and while the DR of TWU is the best with strong or weak decoupling in 7 of the 10 years in the two provinces. It is believed that tThe slow economic growth, low water use efficiency, and as well as unreasonable water use structure are were the three main factors to cause the unfavorable decoupling relationships. The five-year based DR has been improved in the 11th FYP if compared with that in the 10th FYP, which means suggested the Great Western Development Strategy plays a positive role in coordinating the relationship between water use and economic development.
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