云南经济发展与水资源利用脱钩状态的空间格局分析

Analysis on the Spatial Pattern of Decoupling Between Economic Development and Water Resources Utilization in Yunnan Province

根据脱钩理论的基本内涵,利用2005~2015年水资源利用增长率与GDP增长率数据,计算得到2005~2015年云南省经济发展与水资源压力的脱钩弹性系数D,并根据经济发展与水资源压力的脱钩状态划分标准对研究时段内水资源利用与经济发展的脱钩状态进行划分,进而在此基础上分析2012、2015年两个时段经济发展与水资源压力的脱钩状态的空间格局及其变化特征。研究表明:脱钩状态类型组成减少,云南各地州脱钩状态较为复杂,差异较大,但这种差异性呈现缩小的趋势;从脱钩状态类型数量组成看,云南省各地州水资源利用与经济发展的脱钩态势总体呈现弱脱钩态势,其总体上经济总量与水资源使用量均在增加,但经济增长速度高于水资源增长率;从脱钩弹性系数D值看,云南省各地州总体上经济增长与水资源利用呈现脱钩态势,有由弱脱钩向强脱钩转变的趋势;从脱钩状态类型的空间分布变化看,经济发展程度较低的滇西等地区主要呈现强脱钩态势,协调性良好;经济发展程度较高的滇中、滇东等地区,主要呈现弱脱钩态势。

Based the basic connotation of decoupling theory, it was calculated the decoupling elastic coefficient D of economic development and water resources pressure of Yunnan Province from 2005 to 2015 by using the data of water resource utilization rate and GDP growth rate from 2005 to 2015. In addition, it was divided the decoupling status be- tween water resources utilization and economic development during the study period in accordance with pressure decou- pling state division standard of the economic development and water resources. Furthermore, it was analyzed the spatial pattern and spatial pattern variation characteristics of the decoupling state of economic development and water resouurce pressure during the two periods of 2012 and 2015. The results showed that, there is a decrease in the types of decou- pling state, and the decoupling states in Yunnan Province is mote complicated with large difference, but the difference appears a narrowwing trend. From the number of decoupling state types, generally, the decoupling situation of water resources utilization and economic development appears a weak decoupling trend in different regions of Yunnan Province,with the increases of the overall economic aggregate and water resource utilization, while the economic growth rate is higher than that of water resources. From the value of the decoupling elastic coefficient D, the overall economic growth and water resource utilization in different regions of Yunnan province are decoupled, and there is a trend of shifting from weak decoupling to strong decoupling. From the spatial distribution of the decoupling state, the west part of Yunnan Province with low economic development showed strong decoupling trend with good coordination, while in the central and east part of Yunnan Province with higher economic development degree mainly show the weak decoupling situation trend.