流域社会经济与水环境质量耦合协调度分析

Analysis of coupling coordination between social economy and water environment quality in river basin

从经济发展、社会发展、环境保护等方面构建耦合协调评价指标体系,采用熵权法确定指标权重,利用力学平衡模型,对闽江流域各个地区2006～2016年耦合协调程度进行评估.结果表明:三明、南平、福州市的经济发展水平、社会发展水平、环境保护水平总体上均呈现逐年递增的趋势,在空间上大体表现为福州>三明>≈南平.三明、南平、福州等地区的耦合协调度总体上呈现递增趋势,在空间上表现为福州>三明≈南平.从时间变化看,可以将闽江流域耦合协调度划分成3个阶段:阶段Ⅰ (2006～2009年)、阶段Ⅱ (2009～2013年)、阶段Ⅲ (2013～2016年).根据闽江流域各地区耦合协调度偏离方向θ的大小,将闽江流域各地区不同年限的耦合协调发展划分为环境保护滞后型(Ⅰ象限)、经济发展滞后型(Ⅱ象限)、社会发展滞后型(Ⅲ象限),并对不同滞后类型分别提出改进方向.

An indicator system for coupling coordination assessment was constructed based on indices from three aspects: economic development, social development and environmental protection, with weights determined by applying a mechanical balance model based on the information entropy theory. We applied our indicator system to evaluate coupling coordination degree of the Min River basin over the period from 2006 to 2016. The results showed that: the level of economic development, social development and environmental protection in Sanming, Nanping and Fuzhou regions all have increased during this period. Spatially, Fuzhou achieved the greatest improvement, followed by Sanming, then Nanping. The same increasing trend has been found on the coupling coordination degree at all three regions. Spatially, the degree of improvement achieved in each region followed the order of Fuzhou, Sanming, and Nanping. According to the status of the coupling coordination, we divided the research period into three stages: stage I (2006~2009), stage Ⅱ(2009~2013) and stage Ⅲ(2013~2016). Within each stage, we categorized the regional coupling coordination into three groups based on the deviation direction θ of the coupling coordination degree in each area of the Min River basin: lagging in environmental protection type (I quadrant), lagging in economic development type (Ⅱ quadrant) and lagging in social development type (Ⅲ quadrant), and we also discussed the improvement suggestions for each type in this article.