基于“三生”空间的农牧交错区城市土地利用转型及生态环境效应分析——以包头市为例
收稿日期: 2022-07-01
修回日期: 2022-09-03
网络出版日期: 2023-07-24
基金资助
国家自然科学基金(51868057);内蒙古自治区教育科学研究“十三五”规划2020年度立项课题(NGJGH2020049)
Land use function transformation in the agro-pastoral ecotone based on ecological-production-living spaces and associated eco-environment effects: A case of Baotou City
Received date: 2022-07-01
Revised date: 2022-09-03
Online published: 2023-07-24
农牧交错区的土地利用转型及生态环境建设，是我国西北地区可持续发展的重要支撑。基于“三生”空间视角，运用包头市2000、2010、2020年3期遥感数据，通过土地转移矩阵、生态环境质量指数和生态贡献率等方法，分析其土地利用转型特征与生态环境效应。结果表明：（1） 研究期内包头市“三生”空间总体格局稳定，生产、生态用地减少，生活用地持续增加。牧草生态用地转出面积最多，农业生产用地次之;城镇生活用地与工矿生产用地流入面积最大。（2） 2000—2020年包头市生态环境质量指数下降，分别为0.6292、0.6208、0.6194，但改善趋势大于恶化趋势;城市北部生态高质量区面积有所减少;中部中质量区缓慢减少，南部低质量区持续向东南方向递增。（3） 牧草生态用地被占用产生的生态环境负效应较大，而其他生态用地、农业生产用地向牧草生态用地转化则为生态环境改良的主导因素。通过研究包头市的土地利用转型及其生态环境效应，以期为农牧交错区城市的“三生”空间优化、生态环境保护提供借鉴。
张梦圆 , 荣丽华 , 李伊彤 , 党慧 . 基于“三生”空间的农牧交错区城市土地利用转型及生态环境效应分析——以包头市为例[J]. 干旱区地理, 2023 , 46(6) : 958 -967 . DOI: 10.12118/j.issn.1000-6060.2022.328
The transformation of land use and ecological environment construction in the agro-pastoral transitional zone serves as an important supporting factor for sustainable development in northwestern China. Based on the perspective of ecological-production-living space and using remote sensing data from 2000, 2010, and 2020 in Baotou City, this paper analyzes the characteristics of land use transformation and its ecological environment effects through methods such as land transfer matrix, ecological environment quality index, and ecological contribution rate. The results show that: (1) The overall pattern of the ecological-production-living space in Baotou City remained stable during the research period, with a decrease in production and ecological land and a continuous increase in residential land. The area of grassland ecological land transferred out is the largest, followed by agricultural production land; the area of urban residential land and industrial production land transferred in is the largest. (2) From 2000 to 2020, the ecological environment quality index of Baotou City decreased, with values of 0.6292, 0.6208, and 0.6194, but the improvement trend is greater than the deterioration trend. The area of high-quality ecological areas in the northern part of the city decreased, the medium-quality areas in the central part decreased slowly, and the low-quality areas in the southern area continued to increase towards the southeast. (3) The negative ecological environment effects generated by occupying grassland ecological land are significant, while the transformation of other ecological land and agricultural production land into grassland ecological land is the main factor in improving the ecological environment. By studying the land use transformation and ecological environment effects in Baotou City, this paper aims to provide reference for the optimization of the ecological-production-living space in urban agro-pastoral transitional zones and ecological environment protection.
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