内蒙古科尔沁右翼中旗资源环境承载力评价

Assessment of Resource-Environment Carrying Capacity in Horqin Right Wing Middle Banner, Inner Mongolia

摘要: 科尔沁右翼中旗(以下简称“科右中旗”)地处内蒙古科尔沁草原中部，是我国北方典型的农牧交错带和生态脆弱区。在国土空间规划背景下，本研究以2023年土地利用、DEM、气象和地貌类型数据为基础，依托ArcGIS 10.8平台，分别构建土地资源、水资源和生态三项单因素评价模型，并依据短板效应原则进行集成评价，对科右中旗及其下辖16个苏木乡镇进行了资源环境承载力评价。主要结论：(1) 全旗土地可利用度总体较好，高/较高等级土地占65.63%，呈中部–东部高值区向西部边缘递减的空间格局；(2) 水资源丰度总体偏低，超过六成区域处于不丰富或较不丰富等级，水资源短缺是制约全域发展的核心要素；(3) 生态本底呈东南优、西北劣的空间格局；(4) 全旗资源环境承载力整体偏低，弱和较弱等级土地合计占70.67%，新佳木苏木综合承载力最强，哈日诺尔苏木和杜尔基镇综合承载力最弱。研究结果可为科右中旗国土空间规划编制和区域可持续发展决策提供科学依据。

Abstract: Horqin Right Wing Middle Banner (HRWMB) is located in central Horqin Grassland, Inner Mongolia, representing a typical agro-pastoral ecotone and ecologically fragile zone. Based on 2023 land use, DEM, meteorological, and geomorphological data, and using ArcGIS 10.8, this study constructs three single-factor evaluation models for land resources, water resources, and ecology, and integrates them through the short-board effect principle to assess the resource-environment carrying capacity (RECC) of HRWMB and its 16 Sumu towns. Main findings: (1) Land usability is generally favorable, with high/relatively high grades accounting for 65.63%, showing a spatial pattern declining from central-eastern to western margins. (2) Water resource abundance is low overall, with over 60% classified as scarce or relatively scarce, making water scarcity the core regional constraint. (3) The ecological foundation is superior in the southeast and inferior in the northwest. (4) Overall RECC is relatively low, with weak/relatively weak grades covering 70.67%; Xinjiamu Sumu exhibits the strongest and Harinur Sumu/Duerji Town the weakest comprehensive capacity. The findings provide a scientific basis for territorial spatial planning and regional sustainable development decision-making in HRWMB.