基于耦合协调度模型的南京市用水效率与经济发展关系

Dynamic relationship between water use efficiency and economic development in Nanjing based on coupling coordination model

基于2007—2014年南京市用水效率与经济发展的时间序列数据,构建南京市用水效率系统与经济发展系统间的耦合协调度模型,探讨南京市在2007—2014年期间用水效率与经济发展之间的动态均衡关系。首先对用水效率系统和经济发展系统的综合状况进行评价,然后对两系统的耦合协调度进行定量分析。结果表明:2007—2014年南京市用水效率和经济发展水平都有大幅度增长;两者的耦合协调关系在波动中逐渐优化,2007年处于低度协调耦合阶段,2008年处于中度协调耦合阶段,2009—2014年处于高度耦合协调阶段;只有提高用水效率与经济发展并举,才能保持耦合协调度的增长趋势。最后针对用水效率系统和经济发展系统存在的不足,提出在用水效率方面优化用水结构、加强水质污染治理,经济发展方面则调整经济结构、增强经济活力等建议。

The coupling coordination model for the relationship between water use efficiency and economic development in Nanjing is established based on the time series data of water use efficiency and economic development from 2007 to 2014. and the dynamic equilibrium relationship between the two aspects are studied. The status of water use efficiency and economic development in Nanjing is evaluated, and their coupling coordination degree is quantitatively analyzed. The results show that the levels of water use efficiency and economic development both have great growth from 2007 to 2014. Their coupling coordination relation fluctuates and generally tends toward a good state,and it is at the low coordination coupling stage in 2007,at the moderate coordination coupling stage in 2008 and at the high coordination coupling stage from 2009 to 2014. Only the water use efficiency and economic development both can maintain the rising tendency of the coupling coordination degree. Finally,some suggestions for the future development are proposed to solve the shortage of the two systems: optimization of structure of water network and strengthening of water pollution treatment in the field area of water use efficiency,readjustment of economic structure and strengthening of economic vitality in the field of economic development.