李志英, 刘阳, 龙晔. 基于GIS的昆明中心城区1990—2017年建设用地扩展特征研究[J]. 云南大学学报(自然科学版), 2019, 41(5): 964-973. doi: 10.7540/j.ynu.20180760
引用本文: 李志英, 刘阳, 龙晔. 基于GIS的昆明中心城区1990—2017年建设用地扩展特征研究[J]. 云南大学学报(自然科学版), 2019, 41(5): 964-973. doi: 10.7540/j.ynu.20180760
LI Zhi-ying, LIU Yang, LONG Ye. Study of urban construction land expansion characteristics in Kunming central city from1990 to 2017[J]. Journal of Yunnan University: Natural Sciences Edition, 2019, 41(5): 964-973. DOI: 10.7540/j.ynu.20180760
Citation: LI Zhi-ying, LIU Yang, LONG Ye. Study of urban construction land expansion characteristics in Kunming central city from1990 to 2017[J]. Journal of Yunnan University: Natural Sciences Edition, 2019, 41(5): 964-973. DOI: 10.7540/j.ynu.20180760

基于GIS的昆明中心城区1990—2017年建设用地扩展特征研究

Study of urban construction land expansion characteristics in Kunming central city from1990 to 2017

  • 摘要: 选取1990、2000、2010年及2017年昆明中心城区的遥感影像图,通过ENVI判读各期影像图内建设用地变化,采用象限分析法分析建设用地扩张特征. 结果显示:城市空间形态由“单中心”圈层结构扩张转变为“多中心”组团结构扩张,城市空间往东北向的空港新区及东南向的呈贡区扩张. 影响城市空间扩展的主要因素包括城市地理环境、社会经济及人口、政策引导及道路交通等因素. 建设用地景观格局指数变化显示出中心城区内的主城区建设通过旧城改造实现了新的增长,呈贡新区及空港新区建设虽然逐渐形成建设规模,但是未形成集约发展.

     

    Abstract: Four-phase remote sensing images of Kunming central area in 1990, 2000, 2010 and 2017 were selected to analyze the changes of urban construction land by using ENVI interpretation and Quadrant Analysis method. The results show that the urban spatial form is transformed in its expansion from a one-center-circular structure to a multi-center structure, and the urban space expands north-eastward to the new-airport area and south-eastward to Chenggong New District. The main factors affecting urban spatial expansion include natural geographical environment, social economy, population, policy guidance, transportation and others. The change of the landscape pattern index of construction land shows: the construction growth of the main urban area within the center of Kunming City has been achieved through the reconstruction of the old town. Although the construction scale of Chenggong and the new-airport areas has gradually formed, it has not achieved intensive development.

     

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