地理研究 ›› 2003, Vol. 22 ›› Issue (6): 769-779.doi: 10.11821/yj2003060012

• 论文 • 上一篇    下一篇

上海及周边主要城镇城市用地扩展空间特征及其比较

李晓文1, 方精云2, 朴世龙2   

  1. 1. 中国科学院地理科学与资源研究所, 北京 100101;
    2. 北京大学城市与环境学系, 北京 100871
  • 收稿日期:2003-03-05 修回日期:2003-08-11 出版日期:2003-12-15 发布日期:2003-12-15
  • 作者简介:李晓文(1968-),男,湖北武汉人,副研究员。主要从事景观生态学、土地利用/土地覆盖等方面研究。
  • 基金资助:

    国家重大基础科研发展项目(G2000046801);中国科学院知识创新工程重要方向性项目(KZCXZSW31803);国家自然科学基金项目(3010020)

The comparison of spatial characteristics in urban landuse growth among the central and sub-cities in Shanghai Region

LI Xiao wen1, FANG Jing yun2, PIAO Shi long2   

  1. 1. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. College of Environmental Science, Peking University, Beijing 100871, China
  • Received:2003-03-05 Revised:2003-08-11 Online:2003-12-15 Published:2003-12-15

摘要:

基于多时段TM遥感影像资料,运用缓冲分析法对上海市区及其周边主要城镇城市用地扩展的时空特征进行了分析和比较。研究结果表明:1)区域城市土地利用扩展过程主要受距中心市区(CBD)的距离的影响;2)城市用地扩展在距CBD10km范围内主要表现为上海市区扩展的空间异向性,距CBD10km范围之外城市扩展的异向性则源于不同时期、不同方向上周边城镇的异速扩展过程,并受河流、渠系等小尺度地貌格局差异的影响;3)上海主要郊区城镇扩展可分为标准型、被动扩展型、平缓扩展型和不规则扩展型。

关键词: 上海地区, 城市用地扩展, 空间行为特征, 缓冲带分析

Abstract:

By using multi temporal remotely sensed data of TM & ETM, the spatial behavior of urban growth in Shanghai Region was studied by establishing and applying the urbanization metrics (i e UPI & UII) in GIS buffering analysis, which was also used in comparing and analysing the spatio temporal changes in urban landuse growth of central and sub cities of Shanghai The results showed that: 1) Being without influence of large scale geomorphic heterogeneity except geo contrast between the ocean and terrene, the spatial behavior of urban landuse expanding is largely regulated by the distance to the Shanghai central city (i e CBD) Urban landuse expanding exhibited the distinctive spatial characteristics in different periods, and the activity & spatial distribution of urban expanding circle also showed their unique traits in different periods. 2) The urban landuse growth presented obvious trends in directional variation The overall directional variation within 10 km to the CBD is dominated by spatial heterogeneity in central urban landuse growth, whereas the distribution and the variation in growth rate of sub cities play the key role in overall directional heterogeneity beyond 10 km to the CBD, and the small scale geomorphic variation from the spatial pattern of rivers and channels also shows its contribution. 3) Shanghai central city keeps overwhelming preponderance to the sub cities in magnitude, intensity and potential of urban landuse growth Affected by the location and sociao economic condition, the main sub cities performed differently in their spatial behavior of urban landuse growth individually, and thus can be classified into four categories according to their performance in urban landuse expanding (i e Standard, Passive, Steady and Irregular types)

Key words: central and sub cities of Shanghai, urban landuse growth, spatial behavior, directional variation, buffering analysis

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