基于“生产–生活–生态”三生空间视角的淮安市土地利用效率评价

Evaluation of Land Use Efficiency in Huai’an City from the Perspective of the “Production-Living-Ecological” Threefold Spatial Function

摘要: 随着国土空间规划的深入推进，如何在城镇化进程中统筹生产、生活、生态三大功能空间，实现土地资源的高效配置与可持续利用，成为当前土地科学研究的热点问题。土地利用效率空间分异受距市中心距离、路网密度、人口密度、经济发展水平等多重因素驱动，厘清驱动机制有助于提升评价解释力与规划针对性。文章以江苏省淮安市为研究对象，融入土地利用空间分异驱动理论，构建基于三生视角的土地利用效率评价指标体系，综合运用GIS空间分析、专家打分法、综合指数法等方法，对淮安市土地利用效率进行多维度量化评价。研究将土地利用划分为五大类型区，针对各分区典型问题与功能冲突提出地块置换、产业准入、生态廊道建设等具象可落地建议，识别出空间布局中存在的功能冲突与资源低效利用问题，并提出相应的优化建议，为同类城市国土空间优化提供参考。

Abstract: With the in-depth advancement of territorial spatial planning, how to coordinate the three functional spaces of production, living and ecology in the process of urbanization, so as to realize the efficient allocation and sustainable utilization of land resources, has become a hot issue in current land science research. The spatial differentiation of land use efficiency is driven by multiple factors such as distance to city center, road network density, population density and economic development level. Taking Huai’an City, Jiangsu Province as the research object, this paper integrates the driving theory of land use spatial differentiation, constructs an evaluation index system of land use efficiency from the perspective of “production-living-ecological spaces”, and comprehensively uses GIS spatial analysis, expert scoring method, comprehensive index method and other methods to conduct a multi-dimensional quantitative evaluation of land use efficiency in Huai’an. The study classifies land use into five major types of zones, puts forward concrete and implementable suggestions such as land replacement, industry access and ecological corridor construction according to typical problems and functional conflicts in each zone, identifies the problems of functional conflicts and inefficient resource utilization in the spatial layout, and puts forward corresponding optimization suggestions, so as to provide a reference for the territorial spatial optimization of similar cities.