以环京津地区73个县区单元为研究对象,采用综合评价法测算其国土空间多功能值,利用空间分析法、标准差椭圆模型揭示“三生”功能的时空演化特征,结合共生度模型和共生系数探讨各功能之间的共生关系,提出环京津地区“三生”功能分区调控策略。研究结果表明,环京津地区“三生”功能具有明显的时空差异性特征,并存在显著正向自相关关系。环京津地区的生产功能与生活功能以生活支配型正向非对称共生类型和生活收益型寄生关系为主,生产功能与生态功能以生产收益型非对称寄生关系为主,生活功能与生态功能以生态收益型非对称寄生关系类型为主。环京津地区共划分为4个一级功能区和11个二级功能区,并基于此提出国土空间功能分区优化策略。
Taking 73 counties and districts in the region around Beijing and Tianjin as the research object, the comprehensive evaluation method is used to measure the multi-functional value of land space, and the spatial analysis method and standard deviation ellipse model to reveal the spatial and temporal evolution characteristics of “Production-Living-Ecological” function, combined with the symbiosis relationship between symbiosis degree model and symbiosis coefficient mining function, the regulation strategy of “Production-Living-Ecological” function zoning in the region around Beijing and Tianjin. The research results show that: firstly, the “Production-Living-Ecological” functions of region around Beijing and Tianjin agglomeration not only have obvious spatiotemporal evolution law, but also have significant positive autocorrelation distribution. Secondly, the production function and living function of the region around Beijing and Tianjin are dominated by the positive asymmetric symbiotic type of life dominance and the parasitic relationship of life income; the production function and ecological function are mainly based on the asymmetric parasitic relationship of production income; the life function and ecological function are mainly ecological benefit asymmetric parasitic relationship, life dominant reverse asymmetric symbiosis and life benefit asymmetric parasitic relationship. Finally, the study divides the region around Beijing and Tianjin into 4 first-level functional areas and 11 second-level functional areas, and suggestions on optimal utilization of land space according to development characteristics of each functional area.
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