西南地区乡村生产-生活-生态耦合协调动态演化分析

Analysis of dynamic evolution of rural production-living-ecology coupling coordination in southwest China

在构建乡村"三生"复合系统耦合协调评价指标体系的基础上,运用改进的熵值法与耦合协调测度模型,测算了西南地区2005—2016年乡村"三生"复合系统及子系统两两间的耦合协调度,并对其演化状态进行比较与分析.结果表明,西南地区乡村"三生"复合系统耦合协调时间序列表现为失调衰退、过渡发展和协调发展3种演化类型,经历了极度失调、严重失调、中度失调、轻度失调、濒临失调、勉强协调、初级协调和中级协调8种演化状态;空间秩序呈现"极度失调均衡,严重失调与中度失调聚集,初级协调与中级协调交错"的格局演化特征.省级单元乡村"三生"复合系统耦合协调异质性较显著,子系统两两间的耦合协调发展不均衡,生活-生态系统耦合协调水平相对滞后.

On the basis of the construction of the coupling coordination evaluation index system of rural production-living-ecology composite system,this paper uses the improved entropy evaluation method and the coupling coordination measurement model to measure the coupling coordination degree of the rural production-living-ecology composite system and its subsystems in southwest China from 2005 to 2016,and compared and analyzed their evolution status.The results show that:the coupling coordination time series of the production-living-ecology composite system in southwest China manifests three types of evolution:disorder and recession,transitional development,coordinated development,and has experienced eight evolution stages,namely extreme disorders,severe disorders,moderate disorders,mild disorders,on the verge of disorders,bare coordination,primary coordination and moderate coordination;the spatial order manifests the pattern evolution characteristics of“equilibrium of extreme disorders,aggregation of major-moderate disorders,and interlace of primary-moderate coordination”.The coupling coordination heterogeneity of the production-living-ecology composite system of provincial unit villages is significant.The pairwise coupling coordination evolution between subsystems is not balanced,and the coupling coordination status of the living-ecology is relatively lagging at present.