赵益祯, 曹建农, 张晓栋, 何高波. 陕北黄土高原生态脆弱地区土地利用变化的时空分析:以志丹县为例[J]. 云南大学学报(自然科学版), 2020, 42(2): 299-307. doi: 10.7540/j.ynu.20190414
引用本文: 赵益祯, 曹建农, 张晓栋, 何高波. 陕北黄土高原生态脆弱地区土地利用变化的时空分析:以志丹县为例[J]. 云南大学学报(自然科学版), 2020, 42(2): 299-307. doi: 10.7540/j.ynu.20190414
ZHAO Yi-zhen, CAO Jian-nong, ZHANG Xiao-dong, HE Gao-bo. Spatial-temporal analysis of land use change in ecologically vulnerable regions of the Loess Plateau in northern Shaanxi Province: A case study of Zhidan County[J]. Journal of Yunnan University: Natural Sciences Edition, 2020, 42(2): 299-307. DOI: 10.7540/j.ynu.20190414
Citation: ZHAO Yi-zhen, CAO Jian-nong, ZHANG Xiao-dong, HE Gao-bo. Spatial-temporal analysis of land use change in ecologically vulnerable regions of the Loess Plateau in northern Shaanxi Province: A case study of Zhidan County[J]. Journal of Yunnan University: Natural Sciences Edition, 2020, 42(2): 299-307. DOI: 10.7540/j.ynu.20190414

陕北黄土高原生态脆弱地区土地利用变化的时空分析:以志丹县为例

Spatial-temporal analysis of land use change in ecologically vulnerable regions of the Loess Plateau in northern Shaanxi Province: A case study of Zhidan County

  • 摘要: 由于黄土高原区域存在土地利用变化剧烈、人地关系结构不合理的问题,以陕西省志丹县为讨论范围,GIS技术为支持,对2008、2012年和2016年的3期遥感Landset影像进行目视解译,将土地转移矩阵、变动图谱和信息熵结合起来,对研究区域进行土地利用时空变化特征研究. 结果显示:2008—2016年间,研究区域林地面积变化幅度最大,稳定型变动方式中林地所占面积最大,住宅和交通用地面积扩张显著;林地、园地、草地和水域呈现出缩减趋向,志丹县土地利用仍旧以耕地和林地为主要类型,并且耕地与林地相互间的转化十分显著. 总之,志丹县土地利用结构向稳定方向发展,其结论以期能够对陕西北部黄土高原城市土地合理利用和高效管理提供根据.

     

    Abstract: In order to research the frequent change of land use and the unreasonable structural relationship between human and land in the Loess Plateau region, this paper takes Zhidan County of Shaanxi Province as the research area, and by employing the GIS technology, carries out visual interpretation based on three-phase remote sensing Landset images in 2008, 2012 and 2016; besides, the spatial and temporal change characteristics of land use is studied by combining land transfer matrix, change map and information entropy. The results show that from 2008 to 2016, the land of the forest areas changed dramatically, with the forest land as the largest area in the stable mode of change, and the area of residential and traffic construction land expanded remarkably; the area of woodland, garden-land, grassland and waters decreased in varying degrees; and the cultivated land and woodland are still the main types of land use in Zhidan County. The transformation between cultivated land and woodland was very obvious. To sum up, land use in Zhidan County is developing stably. The research results are intended to provide a scientific basis for urban land use planning and sustainable development in the Loess Plateau in northern Shaanxi.

     

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