“三生空间”功能演变及对生态安全的响应——以石柱县为例

Functional Evolution of the"Production-Living-Ecological"Space and Its Response to Ecological Security—A Case Study of Shizhu County

以典型山地丘陵地区的石柱县为研究区域,ArcGIS软件为平台,构建“三生空间”功能结构体系,使用“三生空间”功能转移矩阵、生态安全质指数和生态贡献率模型,分析研究“三生空间”与生态安全时空分布特征。结果表明:在研究期内,生态空间在石柱县域范围内占绝对优势,生态空间、生活空间面积整体呈上升趋势,生产空间面积呈整体下降趋势;生产空间向生态空间转移最多,转移面积生活空间向生态空间转移面积最小;生态安全在空间上的分布趋势跟“三生空间”变化格局保持一致;“三生空间”功能动态变化对生态安全的综合影响指数为正,符合石柱县生态安全水平逐渐变好的趋势。

Taking Shizhu County in typical mountainous and hilly area as the research area,and ArcGIS software as the platform,this paper constructed the functional structure system of"production-living-ecological"space.The functional transfer matrix,ecological security quality index and ecological contribution rate model of"productionliving-ecological"space were used to analyze and study the spatial and temporal distribution characteristics of"production-living-ecological"space and ecological security.The results showed that:during the study period,ecological space was absolute dominant in Shizhu County,and the ecological space and living space area showed an overall upward trend,while the production space area showed an overall downward trend.The production space transferred to the ecological space was the largest,and the living space transferred to the ecological space was the smallest.The spatial distribution trend of ecological security was consistent with the change pattern of"production-living-ecological"space.The comprehensive impact index of dynamic changes in the function of"production-living-ecological"space on ecological security was positive,which was in line with the trend of ecological security level gradually improving in Shizhu County.