国土空间综合整治作为国土空间规划的重要部分，可有效解决国土空间开发过程中存在的国土资源开发与自然环境承载力不匹配、国土空间利用效率和效益不高、生态环境退化等问题，遵循“山、水、林、田、湖、草”生命共同体理念，研究县域国土空间综合整治潜力测算与整治分区可为国土空间综合整治工作开展提供重要依据。因此本文在借鉴国内外学者研究成果的基础上，通过对区域生态环境现状评价，识别区域生态供给格局和脆弱格局；采取科学方法对国土空间综合整治潜力进行测算，识别国土空间综合整治潜能；基于聚类分析对国土空间综合整治进行分区，明确国土空间综合整治重点方向，并提出具体整治措施。主要研究内容及结论如下：

（1）基于GIS分析平台，分别从生态服务功能重要性和生态系统敏感性两个方面对县域生态环境现状进行评价。结果表明灵丘县生态系统服务功能极重要区域总面积为99903.51hm²，主要分布在北部恒山山脉一带、东部太行山山脉一带以及中部偏南红石塄乡等乡镇；生态环境极敏感区总面积为20153.34hm²，主要分布在灵丘县北部恒山山脉区、中部地区偏南红石塄乡等乡镇，分布相对较为分散。

（2）采用人均建设用地指标法、指标评价法和目标等别法等方法对灵丘县国土空间综合整治潜力进行测算。结果表明灵丘县农用地整理新增耕地总面积为2929.68hm²，一级整理潜力区集中分布在中部偏北地区柳科乡至赵北乡一带；农村建设用地整治新增耕地总面积为506.90hm²，一级整治潜力区分布在武灵镇；废弃工矿复垦新增耕地面积为703.96hm²，一级复垦潜力区主要分布在中部偏西北地区武灵镇、东河南镇等区域；宜耕后备资源开发新增耕地面积为7772.06hm²，一级开发潜力区主要分布在中部偏北唐河流域沿线东河南镇等乡镇；耕地综合产能提升潜力为97616.7t，原有耕地粮食产能可提升57232.29t，新增耕地产能40383.71t，综合产能提升高潜力区主要分布在中部偏北武灵镇等乡镇。

（3）依据生态环境现状评价以及国土空间综合整治潜力测算，从整治潜力指数、生态环境指数、土地利用指数和整治外部性指数4个层面选取9个指标，采用K-值聚类分析方法进行国土空间综合整治分区，主要分为城镇发展集约区、农业产能提升区和生态功能修复区。结果表明城镇集约发展区总面积为48410.24hm²，分布在武灵镇和东河南镇；农业产能提升区面积为117607.90hm²，分布在落水河乡、柳科乡、石家田乡、史庄乡和赵北乡；生态功能修复区面积为115042.94hm²，分布在独峪乡、下关乡、上寨镇、红石塄乡和白崖台乡。

（4）针对城镇集约发展区、农业产能提升区和生态空间修复区存在的问题，分别提出“低效用地整治+产业结构调整”、“设施农业+生态农业”、“生态修复”为主导的整治模式，明确国土空间综合整治重点方向。同时从县域层面提出“国土空间综合整治+生态修复”整治模式，分类推进高标准基本农田建设、城镇低效用地在开发、城乡建设用地增减挂钩、废弃工矿建设用地复垦、宜耕后备资源开发、水源涵养林建设、水土保持工程、矿山生态修复以及林草生态建设修复等项目实施，综合提高土地集约利用；并构建“一屏一轴、一片多点、四廊多线”的生态网络格局，锚固灵丘县生态安全。

As an important part of territorial spatial planning, the comprehensive regulation of territorial space can effectively solve the problems existing in the process of territorial spatial development, such as the mismatch between the development of land resources and the carrying capacity of natural environment, the low efficiency and benefit of territorial spatial utilization, and the degradation of ecological environment. Followd the “mountain, water, forest, field, lake, and grass” life community Concept, the study of the calculation of the comprehensive improvement potential of the county land space and the improvement zoning is an important basis for the comprehensive improvement of the land space. Therefore, based on the research results of domestic and foreign scholars, this paper identified the pattern of regional ecological supply and fragile pattern by evaluating the status quo of regional ecological environment, the potential of comprehensive regulation of territorial space was measured and identified by scientific methods. Based on cluster analysis, the comprehensive regulation of territorial space was divided into regions, the key direction of comprehensive regulation of territorial space was defined, and specific regulation measures were put forward.The main research contents and conclusions are as follows:

(1) Based on the GIS analysis platform, evaluated the current status of the county's ecological environment from two aspects: the importance of ecological service functions and the sensitivity of the ecosystem. The results showed that the total area of the most important areas for ecosystem services in Lingqiu County was 99903.51hm², mainly distributed in the Hengshan Mountains in the north, the Taihang Mountains in the east, and Hongshileng Township in the Shishan District to the south of the center; the total area of extremely sensitive ecological environment It was 20153.34 hm², mainly distributed in the Hengshan Mountains in the northern part of Lingqiu County, and in the southern part of the central area, such as Hongshileng Township. The distribution was relatively scattered.

(2) Using per capita construction land index method, index evaluation method and target method, etc. to measurd and calculated the comprehensive improvement potential of land space in Lingqiu County. The results showed that the total area of newly added cultivated land for agricultural land consolidation in Lingqiu County was 2929.68 hm², and the first-level improvement potential areas were concentrated in the area from Liuke Township to Zhaobei Township in the northern part of the central region; the total area of newly added cultivated land for rural construction land consolidation was 506.90 hm² ; The first-level potential area was located in Wuling Town; the newly-increased cultivated land area of abandoned industrial and mine reclamation was 703.96 hm², and the northwestern part of the first-level potential area was in Wuling Town, Donghenan Town and other areas; the newly-added cultivated land area for the development of suitable arable reserve resources It was 7772.06 hm²; the first-level potential areas were distributed in areas with rich grassland resources such as Donghenan Town along the northern Tang River Basin in the central part; the comprehensive productivity of cultivated land was 97616.7t, the original cultivated land grain production capacity can be increased by 57232.29t, and the new cultivated land With a production capacity of 40,383.71t, areas with high potential for comprehensive production capacity improvement were mainly distributed in villages and towns such as Wuling Town in the north of central China.

(3) According to the evaluation of the current ecological environment and the comprehensive remediation potential of land and space, 9 indicators were selected from the four levels of remediation potential index, ecological environment index, land use index and remediation externality index, and K-value cluster analysis method was adopted. Comprehensive rectification of territorial space divisions. It is mainly divided into the urban development intensive area, the agricultural productivity improvement area and the ecological function restoration area. The results showed that the urban intensive development area covers an area of 48410.24 hm², distributed in Wuling Town and Donghenan Town, and the agricultural productivity improvement area was 117,607.90 hm², distributed in Luoshui Township, Liuke Townships, Shijiatian Townships, Shizhuang Townships and Zhaobei Townships; the ecological function restoration area was 115042.94 hm², distributed in towns such as Duyu Township, Xiaguan Township, Shangzhen Township, Hongshileng Township and Baiyatai Township.

 (4) Aiming at the problems existing in urban intensive development zones, agricultural productivity enhancement zones, and ecological space restoration zones, respectively, “inefficient land improvement + industrial structure adjustment”, “facility agriculture + ecological agriculture”, and “ecological restoration” were proposed as the leading The remediation model clarifies the key directions of land remediation; at the same time, it proposed a “comprehensive land remediation + ecological restoration” remediation model at the county level, classification and promotion of high-standard basic farmland construction, urban and rural inefficient land development, urban and rural construction land increase and decrease, and abandoned industrial and mining construction The implementation of land reclamation, development of suitable arable reserve resources, construction of water conservation forests, water and soil conservation engineering, ecological restoration of mines, and restoration of forest and grass ecological construction, etc., comprehensively improved the intensive use of land, and builded “one screen, one axis, one area, multiple points, four The ecological network pattern of “Lando Line” anchors the ecological security of Lingqiu County.

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