%0 Journal Article
%T Coupling Degree between Urban Economy and Technical Efficiency of Water Use in China<br>中国城市经济与用水技术效率耦合协调度研究
%A SUN Ai-jun
%A DONG Zeng-chuan
%A ZHANG Xiao-yan
%A <br>孙爱军
%A 董增川
%A 张小艳
%J 资源科学
%D 2008
%I 
%X The increased pressure of water supply in urban area mainly resulted from the fast economic growth, population expansion and accelerated urbanization. Most urban governments have paid great attentions to fast GDP growth, rather than improvement of water use efficiency and water pollution, causing deterioration of urban water environment and accelerating contradictions between water supply and water demand. The key to solving the contradictions lies in the improvement of technical efficiency of water use. To make right and scientific economic development strategies, the coordination between urban economic development and technical efficiency of water use is to be measured. The stochastic frontier production function is introduced to compute the technical efficiency of water use in different cities, and typical indices are then sorted out to calculate the integration of urban economy. This study works out a model of coupling degree between economic development index and technical efficiency of water use in different cities in order to get the coordination degree between urban economic development and technical efficiency of water use. The model reflects the urban development levels and coordination degree between urban economic development and technical efficiency of water use, giving a concise and systematic presentation of the system. Quantitative evaluation and comparison studies can be carried out by applying the model to investigate the coordination degree of environment and economy in a region or different regions in different periods. The data collected from statistical yearbooks of Chinese cities was calculated through the model to get the coordination degree during period of 1990 to 2003. Results show that the main problem facing China's cities is low technical efficiency of water use. The study also shows that the coordination degree between urban economy and technical efficiency of water use has been improving steadily. However, water shortage still is an urgent issue to be solved in Chinese cities. The study suggests that the government should play a leading role in this regard and equal efforts should be made in developing economy and improving technical efficiency of water use so as to improve the coordination between the two to achieve sustainable development.
%K Technical efficiency
%K Urban economy
%K Coordinated development
%K Coupling degree<br>技术效率
%K 城市经济
%K 协调发展
%K 耦合协调度
%K 中国
%K 城市经济
%K 技术效率
%K 耦合
%K 协调度
%K 研究
%K Water
%K Use
%K Technical
%K Efficiency
%K Economy
%K Urban
%K Degree
%K 决策依据
%K 水战略
%K 可持续
%K 经济发展
%K 实施
%K 政府
%K 改进
%K 发展经济
%K 考察
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=B5EDD921F3D863E289B22F36E70174A7007B5F5E43D63598017D41BB67247657&cid=B47B31F6349F979B&jid=9DEEAF23637E6E9539AD99BE6ABAB2B3&aid=4FC616D9AECEAA4E382A7F78C65B520E&yid=67289AFF6305E306&vid=340AC2BF8E7AB4FD&iid=38B194292C032A66&sid=BD7D27247C63490C&eid=FB36B1C076A263FA&journal_id=1007-7588&journal_name=资源科学&referenced_num=2&reference_num=17