基于GIS的兰州城市用地变化分析  

The Analysis about the Change of land-use in Lanzhou by GIS

作　　者：杨永春[1] 孟彩红[1] 郭士梅[1] 刘治国[1] 胡昊劼[1] 

机构地区：[1]兰州大学资源环境学院地理科学系,甘肃兰州730000

出　　处：《山地学报》2005年第2期174-184,共11页Mountain Research

基　　金：国家自然科学基金项目 (编号 40 2 0 10 16);国家社会科学基金项目 (编号 0 2BJL0 3 3 )资助~~

摘　　要：兰州城市建成区主要处于兰州的东、西两大河谷盆地中。在兰州河谷盆地1∶5 0 0 0地形图的基础上,于2 0 0 2 - 0 5～0 8和10～11所作的实地调查资料和兰州市城关区的地籍资料以及其他相关文字资料的基础上,揭示了195 0至今的兰州城市土地利用扩展的时空分异规律,阐明了城市土地利用的时空迁移模式与机制。The urban built-up areas in Lanzhou mainly lies on two valley-shaped basins on the east and west of city. According to the relief map of valley-shaped basins whose scale is 1∶5000, the article shows that the disciplinarian of space time difference about land-use extension in Lanzhou city from 1950 to this day, and clarifies the pattern and mechanism of space time transference about land use in city based on the investigative data on the spot including May-August and October-November of 2002, cadastre of Chengguan region and other correlated materials. The article discusses some problems on the aspect of environment etc. which exist in this kind of city land use's pattern on the background of valley-shaped basins. The paper not only particular discusses the collectivity changes about urban land but also idiographic analyze inner transference about changes of urban land use from space and time. Then this paper discusses mechanism and reason that these changes happened. At first, it is because of the restriction of landform:Lanzhou city is a valley-shaped basins city, the valley-city is a type of city whose main part has formed and developed in the valley.Second, it is the human beings themselves that they use urban land incorrectly. Known through this paper, along with the urban economy development, the city scale extends continuously. Some obvious changes have taken place in the urban land use; the proportion of industry descends continuously, while the proportion of commerce rises obviously. The movement of urban land replacement happened more intensively,and this happened mainly between industry and other types of land use, at the same time, the new-style residence rises quickly, in the future, the spatial differentiations of urban land use will be more and more intensive. It particularizes a lot of problems about environment and natural calamity that resulted in by this kind of change. In the end of the paper, the author brings forward some measures to solve problem. It can give birth to a certainty use for r

关 键 词：兰州市 城市用地 河谷型城市 环境问题 

分 类 号：F119.9[经济管理—国际贸易]