Research On Industrial Water Efficiency Of Zhejiang Province

In recent years, sustainable use of water resources is raising great concern. Specially, high-speed development of industry of Zhejiang province make the industrial water-saving target which put enhancing industrial water efficiency (IWE) at the core appear to be more urgent. Firstly, this paper gives the definition of IWE, builds model of IWE, then, calculates score of IWE of 11 regions in Zhejiang province during the year from 1999 to 2006.Secondly, based on analysis of factors affecting IWE, it builds econometric model of influencing factors of IWE, take the whole Zhejiang province and Hangzhou region for example, and calculates impact factor and degree separately. In the end, according to the industrial economic and social development of the whole province and Hangzhou region, it gives some policy advices.The main creative aspects could be as follows. First, based on distinguish various IWE indicators that are being widely used now, it gives the definition of IWE which seems more reasonable, that is, the ability of optimal use of industrial water. Second, it builds model of IWE from the perspective of technical efficiency, and calculate the efficiency score of the whole province and each region in the province. The result shows that, efficiency descending order is: Ningbo, Wenzhou, Zhoushan, Taizhou, Jiaxing, Shaoxing, Jinhua, Lishui, Hangzhou, Huzhou, Quzhou. Third, builds econometric model of influencing factors of IWE, then take a test by time-series data and achieve the impact factor. For example, the proportion of high water industrial output value in industrial output value drop by 1 percent in Zhejiang industrial structure, industrial water efficiency will be increased by about 0.88%. Forth, it gives the formula of water-saving potential and calculates water-saving potential of 11 regions in Zhejiang province.Improve IWE is a project involving in many aspects. It needs multifaceted cooperation. The contradiction of industry development and water resources in Zhejiang province are still prominent, this paper is trying to give some theoretical guide and policy advices to Zhejiang province's IWE enhancement, the ease of water resources shortage, sustainable development and harmonious society building.