河北省县域土地利用多功能性时空分异与耦合协调度研究

STUDY ON SPATIAL-TEMPORAL DIFFERENTIATION AND COUPLING COORDINATION DEGREE OF MULTI-FUNCTIONALITY OF COUNTY LAND USE IN HEBEI PROVINCE

关键词:  土地利用多功能性  时空分异  耦合协调度  河北省

Key words:  land use multi-functionality  spatial-temporal differentiation  coupling coordination degree  Hebei province

摘要:

目的 研究土地利用多功能时空分异与耦合协调度，为区域土地全面协调发展与可持续利用等提供参考。方法 文章以河北省为例，运用综合指数模型和耦合协调模型，对2000—2019年生产—生活—生态功能进行时空分异特征评价和耦合协调性分析。结果 （1）2000—2019年河北省县域生产、生活、生态功能都明显增强，空间差异特征明显；生产、生态功能呈现“东南高西北低”的差异格局；生活功能呈分散式空间分布。（2）从动态演变来看，河北省生产功能，生活功能，生态功能变化幅度大，均有较大提升；从空间分布来看，生产功能、生活功能和生态功能均呈显著正相关性，空间上存在集聚。（3）研究区“三生”功能的耦合协调性显著提高，2000年、2010年和2019年耦合协调度均值分别为 0.30、0.39 和 0.40，土地利用冲突正逐步减小；不同主体功能区耦合协调性由高到低的顺序为：重点开发区＞优化开发区＞农产品主产区＞重点生态功能区。结论 河北省各县（市、区）应充分发挥作用，走绿色发展之路，提升土地利用多功能水平，进一步优化生产—生活—生态空间的耦合协调，实现全面协调可持续发展的长远目标。

Abstract:

The purpose of this paper is to provide a reference for the comprehensive and coordinated development and sustainable utilization of regional land by studying the spatial and temporal differentiation and coupling coordination degree of multi-functional land use. Taking Hebei Province as an example, the paper used the comprehensive index model and the coupling coordination model to evaluate the spatial-temporal differentiation characteristics and coupling coordination of production-life-ecological functions from 2000 to 2019. The results showed : (1) From 2000 to 2019, the production, living, and ecological functions of counties in Hebei Province were significantly enhanced, and the spatial differences were obvious. The production and living functions showed the different patterns of ' high in southeast and low in northwest'. The life function was distributed in a decentralized space. (2) From the perspective of dynamic evolution, the production function, living function, and ecological function of Hebei Province had changed greatly and had been greatly improved. From the perspective of spatial distribution, there was a significant positive correlation between production function, life function, and ecological function, and there is agglomeration in space. (3) The average value of coupling coordination degree in 2000,2010 and 2019 was 0.30,0.39 and 0.40 respectively, and the land use conflict was gradually decreasing. The coupling coordination degree of different main functional areas from high to low was: key development zone > optimized development zone > main agricultural production zone > key ecological function zone. In conclusion, Counties (cities and districts ) in Hebei Province should give full play to their roles, take the road of green development, improve the multi-functional level of land use, further optimize the coupling and coordination of production-life-ecological space, and achieve the long-term goal of comprehensive, coordinated and sustainable development.