乡村人居环境系统韧性的演变规律及其提升路径——以国家城乡融合发展试验区重庆西部片区为例

以国家城乡融合发展试验区——重庆西部片区为研究区,以2009年、2014年、2019年为研究时点,以2009—2019年为研究时段,按照思想缘起、理论基础、实证演绎、提升路径的研究思路,建立乡村人居环境系统韧性测度的指标体系,分析其演变规律。研究结果表明：2009—2019年,重庆西部片区的乡村人居环境系统韧性水平不断上升,呈现出“南高北低”的空间格局。各子系统韧性在时间上呈现出不同程度的增长趋势,在空间上差异明显：自然系统韧性与人类系统韧性分别呈现出“由南向北递减”和“东西部向中部递减”的空间格局;居住系统韧性与支撑系统韧性则分别呈现出由“低值点缀分布”逐渐过渡到较为均衡和“普遍均衡、高低值点缀”的空间格局;社会系统韧性表现为“西部增强、东部减弱”的空间格局特征。借助障碍度模型对重庆西部片区乡村人居环境系统韧性提升的障碍因子及不同区县面临的主导障碍进行诊断,根据结果将重庆西部片区划分为单一主导障碍型、双重障碍型与三层障碍型三种类型,据此设计乡村人居环境系统韧性提升的差异化路径,以期打破重庆西部片区乡村人居环境系统韧性提升的多重制约。

Research on the evolution law and promotion pathway of rural human settlements system resilience: A case study of Western Chongqing,a national pilot area for urban-rural integration

This study takes Western Chongqing, a national urban-rural integration development pilot area, as the research area, and 2009-2019 as the research period. Based on the systematic analysis, according to the research ideas of ideological origin, theoretical foundation, empirical research and promotion path, this study constructs an index system to measure the rural human settlements system resilience, analyzes its evolution law, and then uses the obstacle degree model to identify the obstacle factors of rural human settlements system resilience. In order to break the multiple constraints of the resilience of rural human settlements in the western part of Chongqing, the paper designs a path to enhance the resilience. Results show that: From 2009 to 2019, the resilience level of rural human settlements in Western Chongqing shows a rising trend, which is characterized by the spatio-temporal differentiation of decreasing from south to north. The resilience of each subsystem shows different degrees of growth in time and significant differences in space. According to the results of obstacle factor analysis and leading obstacle diagnosis in the study area, the resilience improvement can be divided into three types: single dominant barrier type, double barrier type and triple barrier type. Based on this, the differentiation path of rural human settlements system resilience improvement is designed to promote the construction of livable countryside and boost the overall rural revitalization. It has important demonstration effect.