地理科学 ›› 2012, Vol. 32 ›› Issue (7): 840-845.doi: 10.13249/j.cnki.sgs.2012.07.840

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石羊河流域地区城镇空间扩展格局演化

石培基(), 王祖静, 李巍   

  1. 西北师范大学地理与环境科学学院, 甘肃 兰州730070
  • 收稿日期:2011-09-12 修回日期:2011-12-01 出版日期:2012-07-20 发布日期:2012-07-20
  • 作者简介:

    作者简介:石培基(1961-),男,甘肃临洮人,教授,博士生导师,研究方向为城市与区域发展研究。E-mail:shipj@nwnu.edu.cn

  • 基金资助:
    国家自然科学基金项目(40971078)资助

Urban Spatial Expansion Process and Pattern in Shiyang River Basin

Pei-ji SHI(), Zu-jing WANG, Wei LI   

  1. College of Geography and Environmental Science, Northwest Normal University, Lanzhou, Gansu 730070, China
  • Received:2011-09-12 Revised:2011-12-01 Online:2012-07-20 Published:2012-07-20

摘要:

基于石羊河流域地区土地利用综合数据,结合多种模型包括间隙度指数、相关分形维数、扩展强度指数、空间关联模型、空间变差函数,从时间和空间尺度上研究石羊河流域地区城镇建设用地扩展过程与格局。结果表明:20多a来,石羊河流域地区城镇用地以市区和县城为中心向周边辐射,同时沿祁连山边缘海拔2 500 m以下石羊大河沿岸和045丹拉高速、312国道轴线集聚,流域零散分布的乡镇用地变化不大。城镇用地以显著的“点-轴”模式扩展,形成内陆地区城市独特的扩展极核和扩张轴线,为石羊河流域各种规划的编制提供参考。

关键词: 城镇扩展, 空间格局, 空间关联, GIS, 石羊河流域

Abstract:

Urban spatial expansion is an inevitable result of regional development. It is important to find out the expansion mechanism so that we can control the region in harmony. Based on the land use data of Shiyang River Basin, combined with a variety of models including lacunarity index, fractal correlation coefficient, expansion intensity index, spatial association measurements and semivarigram, the investigation of the process and pattern of urban spatial expansion from space and time scales was analyzed in the paper. The results showed a urban spatial expansion in Shiyang River Basin in 20 years. And it concentrated along the Shiyang River , Danla Highway 045 and State Road NO.312. There is a little change of township land. It expanded with "point - axis" mode significantly. That becomes the unique expansion of inland cities. And a reference about Shiyang River Basin of various regional planning was provided in the article.

Key words: urban spatial expansion, spatial pattern, spatial association, GIS, Shiyang River Basin

中图分类号: 

  • F127