武汉城市用地结构演变模式研究

Analysis of Urban Land Use Structure Evolution in Wuhan City

研究目的:揭示武汉城市化快速发展过程中主要用地类型数量变化、时空变化特征以及城市用地结构演变模式。研究方法:遥感影像融合;遥感影像分类;土地利用变化转移矩阵。研究结果:(1)受地形地貌等因素的制约,武汉城市建设用地扩张主要沿横贯主城东西向的山体、纵穿南北的长江构成的"十"字形不断向外扩张;(2)过去30年中,武汉市的发展占用了大量的水域资源;未来需要制定更严格的法律法规措施保护湖泊、坑塘等水域资源。研究结论:多时相遥感影像融合分析是理解城市用地结构演变模式的有效方法。

The aim of this study is to reveal the changes of major land use types, the urban spatial form and structure evolution pattern. Methods employed include remote sensing image fusion, remote sensing image assortment, and land use transfer matrix. The results show that： （1）restricted by factors such as topography and geomorphology, the urban land use expands in Wuhan mainly along a cross framework, namely the east-west mountain range through the main part of the city and north-south Yangtze River;（2）in the past 30 years, the urban development of Wuhan occupied large water spaces, which urges more strict laws and regulations to protect lakes and ponds. It concludes that the analysis method of multiple-phase remote sensing image fusion is effective in understanding the structure evolution pattern of urban land use.