Space Recognition and Influence Mechanism of Urban Construction Land Evolution of Changchun City
Space Recognition and Influence Mechanism of Urban Construction Land Evolution of Changchun City
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发表时间：
2015
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通讯作者：
Wang Xue-we
中科院分区：
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作者：
Wang Xue-we
随着城市化进程的加快，城市建设用地扩张已成为人地关系和可持续发展面临的重要问题。社会各界也越来越关注这些情况。本文以长春市中心城区为研究对象，利用1800 - 1995年统计数据、1995年、2000年、2005年和2010年遥感图和规划统计数据，利用GIS技术提取长春市中心城区建设用地规模、用地类型、增长幅度、平均中心点等信息，建立了一种简单有效的城市建设用地扩展识别方法，计算了城市建设用地扩展的速度、强度、形态紧凑度和分维数等空间特征量，从而概括出沿着1995年以来长春市城市化进程的情况和特点。结合经济社会统计数据和区域分析方法，分析城市建设用地扩张与其各驱动因素之间的关系。结果表明：长春市城市建设用地扩展与形态演变具有一般规律和特殊性，建设用地增长、产业拉动强度大、蔓延速度快、强度高、空间不平衡，城市扩展与建设用地扩展方向相似。在快速城市化的大环境下，开放式交通系统的高密度发展是造成这种状况和特征的主要因素。
With the progress of urbanization accelerating, urban construction land expansion has been an important problem which man-earth relationship and sustainable development have to be confronting with. All social circles also pay more and more attentions to these situations. This article takes the center city of Changchun as the research object, using the statistics data from 1800 to 1995, remote sensing map and planning statistics of1995,2000,2005 and 2010, to extract the information of urban construction land scale, forms, increasing ranges, mean center by GIS, establish a simple way to identify the urban construction land expansion from 1995 to2010 effectively, calculating the spatial characteristic quantity such as speed, strength, form compact degree and fractal dimension of urban construction land expansion, so as to generalize its situations and characteristics of Changchun along with urbanization since 1995. Combining with the economic social statistical data and region analysis method, to analysis the relationship between the urban construction land expansion and its various driving factors. The results show that urban construction land expansion and morphological evolution in Changchun possess its general law and specificity, construction land increasing, Industry-pull strength, fast sprawl, high strength, spatial imbalance, the similar direction between city expansion and construction land expansion. The major factor of the situations and characteristics is high density developing of opened traffic system under the atmosphere of rapid urbanization.