服务于产业转型的矿业废弃地再利用优化与调控

矿业废弃地的优化再利用对资源型城镇转型所需的各项建设拓展空间具有重要的现实意义。该研究以北京市门头沟区为例，集成3S技术与实地调研，分析其矿业废弃地再利用的状况及时空变化，采用面向地理过程动态环境模型（Environment for Geoprocessing Objects, Dinamica EGO）模拟趋势发展情景下的矿业废弃地再利用格局；基于门头沟区

Optimization and regulation of the abandoned mining land reuse for industrial transformation

The optimal reuse of abandoned mining land is of great practical significance to the construction and expansion space required by the transformation of resource-based towns. Taking Mentougou District of Beijing as an example, this paper integrated 3S technology and field research to analyze the type, area, distribution, reuse status and temporal and spatial changes of abandoned mining land in the study area. The geographical process dynamic environment model (Dinamica EGO) was used to simulate the reuse pattern of abandoned mining land under the trend development scenario. Based on the functional positioning of "Capital ecological conservation development area" of Mentougou District, coupled with principal component analysis and BP neural network method, the appropriateness of abandoned mining land reused for ecological agriculture, ecological tourism and high-tech industry was evaluated. According to the suitability evaluation results and the land needs of industrial transformation, the land conversion rules were set up, and the quantitative structure was optimized by combining the linear niche programming model and constraint conditions. Dinamica EGO model was used to optimize the spatial pattern of the reuse of abandoned mining land serving the industrial transformation. Regulation was conducted by comparing the optimization pattern with the trend development pattern. The results showed are as follows: 1) From 2006 to 2018, a total of 323.30 hm2 of abandoned mining land was reused in Mentougou District. The abandoned mining land in western towns was mainly reused as woodland, cultivated land and orchards, while the abandoned mining land in eastern towns was mainly reused as woodland, park, residential land and high-tech industrial land. 2) In the trend development scenario pattern, the abandoned mining land reused as ecological agricultural land was mainly distributed in Miaofengshan Town and Tanzhesi Town, the abandoned mining land reused as ecological tourism industry was mainly distributed in Datai Street and Wangping Town, and the abandoned mining land reused as high-tech industrial land was mainly distributed in Datai Street and Junzhuang Town. In the optimized pattern of abandoned mining land reuse serving industrial transformation, the area of abandoned mining land reused as ecological agriculture was 251.75 hm2, mainly concentrated in Junzhuang Town, Wangping Town, etc., the area reused as ecotourism was 67.25 hm2, mainly distributed in Miaofengshan Town, Qingshui Town, etc., and the area reused as high-tech industry was 84.25 hm2, mainly distributed in Wangping Town and Miaofengshan Town. 3) In the two scenarios, about 108.5 hm2 of abandoned mining land was reused for the same purpose, and no adjustment was needed. About 63.75 hm2 of abandoned mining land was reused as ecological tourism land under the trend development scenario, which should be adjusted to ecological agriculture land. About 61 hm2 of abandoned mining land was reused as ecological agriculture land under the trend development scenario, which should be adjusted to ecological tourism land. The 12.5 hm2 abandoned mining land in Miaofeng Mountain Town, Wangping Town and Yongding Town should adjusted and developed into high-tech industrial land in combination with local infrastructure. This study realized the direct and substantial combination of the reuse of abandoned mine land and the demand for industrial transformation of mineral resource-based towns. The research results have greater practical significance and practical application value, and provide theoretical support for the reuse and regulation of local abandoned mine land.