地理研究 ›› 2018, Vol. 37 ›› Issue (1): 183-198.doi: 10.11821/dlyj201801014

• 研究论文 • 上一篇    下一篇

资源枯竭型城市空间扩展进程研究——以淮北市为例

张志赟1(), 刘辉1,2,3(), 杨义炜1   

  1. 1. 福州大学环境与资源学院,福州 350116
    2. 福州大学区域与城乡规划研究中心,福州 350116
    3. 福州大学遥感信息工程研究所,福州 350116
  • 收稿日期:2017-06-14 修回日期:2017-10-20 发布日期:2018-01-31
  • 作者简介:

    作者简介:张志赟(1990- ),男,河南驻马店人,硕士,主要从事环境与资源遥感研究。E-mail:1129971910@qq.com

  • 基金资助:
    国家自然科学基金青年项目(41301188)

Urban spatio-temporal expansion process for resource-exhausted cities: A case study of Huaibei city

Zhiyun ZHANG1(), Hui LIU1,2,3(), Yiwei YANG1   

  1. 1. College of Environment and Resources, Fuzhou University, Fuzhou 350116, China
    2. Center for City and Regional Planning Research, Fuzhou University, Fuzhou 350116, China
    3. Institute of Remote Sensing Information Engineering, Fuzhou University, Fuzhou 350116, China
  • Received:2017-06-14 Revised:2017-10-20 Published:2018-01-31
  • About author:

    Author: Shi Zhenqin (1988-), PhD, specialized in regional development and land space management in mountain areas. E-mail: kevinszq@163.com

    *Corresponding author: Deng Wei (1957-), Professor, specialized in mountain environment and regional development.

    E-mail: dengwei@imde.ac.cn

摘要:

城市空间扩展是衡量新型城镇化背景下城市化进程的重要指标之一,对于研究资源枯竭型城市的可持续发展也有重要的意义。以遥感影像为基础,结合ArcGIS和Matlab软件实现建成区范围的自动提取;选取城市化强度、重心和紧凑度等指标,分析资源枯竭型城市空间扩展的时空特征;结合研究区实际情况和部分统计数据探讨了城市空间扩展驱动机制。结果表明:1992-2016年,淮北市建成区面积由13.64 km2增加到130.19 km2,净增8.54倍。城市化强度水平处于中等程度,城市扩展强度处于较高的水平,城市土地利用集约程度不高;重心总体呈现出东偏的姿态,建成区用地紧凑度逐渐下降。经济及人口、政府决策、交通水平和采煤塌陷区分别是研究区城市空间扩展的驱动机制、引导机制、内生机制和限制机制。

关键词: 资源枯竭型城市, 遥感, 城市扩展进程, 驱动力, 淮北市

Abstract:

Urban spatial expansion is one of the important indexes that measures the progress of urbanization in the context of new urbanization, and is also of great significance to research on sustainable development of resource-exhausted cities. Firstly, with advanced remote sensing and GIS technologies, the area of building lands in Huaibei in 1992, 1997, 2002, 2007, 2011 and 2016 was extracted by using remote-sensing index-based built-up index (IBI). During the extraction, the data source was multi-temporal Landsat series remote-sensing images. Assistance was provided to Matlab to complete the delimitation and automatic extraction of boundaries of built-up areas (BUAs) in Huaibei. In the research region, the building area increased by 116.55 km2 (by 8.54 times) from 13.64 km2 to 130.19 km2 throughout the study period. Furthermore, spatial and temporal characteristic measurement indexes, such as intensity of urbanization, elastic coefficient of expansion, focuses and compactness index, were selected to reveal the spatial and temporal evolution of building lands in the study area in recent 25 years. The results indicate that the overall intensity of urbanization is moderate, and the intensity of urban expansion is high in the research period; elastic coefficient of expansion indicates that urban land utilization is not highly intensive in the region under research, and man-land relationships develop uncoordinatedly; with respect to changes in BUAs in the research period, the focuses are mainly in the east and relatively concentrated; with the acceleration of reform and opening up and the planning and establishment of economic and technological development zones, compactness of land utilization is gradually decreased in BUAs. Finally, driving and influencing factors of urban spatial expansion were further analyzed from perspectives of economic development, population, policy planning, means of transportation and mining collapse. The results indicate that economy and population, government decision-making (planning), level of transportation and mining collapse zones are driving, guiding, endogenous and restriction mechanisms of urban spatial expansion in Huaibei respectively.

Key words: resource-exhausted cities, remote sensing, urban spatio-temporal expansion, driving force, Huaibei city