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遥感技术与应用  2010, Vol. 25 Issue (2): 202-208    DOI: 10.11873/j.issn.1004-0323.2010.2.202
研究与应用     
基于RS和GIS的城市扩展及驱动力研究—以西安市为例

冯晓刚1,3,李 锐2,莫宏伟1
1.陕西师范大学旅游与环境学院,陕西 西安 710062;
2.中国科学院水利部水土保持研究所,陕西 杨凌 712100;
3.西安建筑科技大学建筑学院,陕西 西安 710055
Study of Urban Expansion and Driving Factor Using RS and GIS—A Case Study of  Xi’an City
FENG Xiao-gang1,3,LI  Rui2,MO Hong-Wei1
1.College of Tourism and Environment Sciences,Shaanxi Normal University,Xi’an 710062,China;
2.Institute of Soil and Water Conservation,CAS/ MWR,Yangling 712100,China
3.School of Architecture,Xi’an University of Architecture & Technology,Xi’an 710055,China)
 全文: PDF(2590 KB)  
摘要:

以RS和GIS技术为支撑,基于多时相Landsat遥感数据,采用监督分类、非监督分类和归一化裸露指数(NDBI)等方法提取陕西省西安市城市空间特征信息,结合地学统计方法,定量研究了城市扩张强度、紧凑度等指标。结果表明:西安市城区1988~2002年14 a间面积翻了1.6倍,年平均增长率为8.815%;城区扩展空间主要集中在南北方向;在此基础上,以影响城市扩张视角多元化为出发点,通过分析社会经济因子、人口因子、政策导向性因子和基本建设投资等因子对城区扩张的影响,政策导向性的前提下社会经济(GDP)和人口增长是其核心影响因子。

关键词: 城市扩张NDBI扩张强度紧凑度驱动力西安市    
Abstract:

Based on RS and GIS,Xi’an City area expansion information were extracted from multi\|temporal Landsat data using supervised classification,non-supervised classification and normalized difference barren index(NDBI).The result shows that Xi’an city area increased 1.6 times from 1988 to 2002,the average growth rate is 8.815% and the new areas mainly distribute in the north and the south parts of the city,Based on the multi-angle view,the paper analyzed the expansion driving factors,such as social economy(GDP),population growth rate,policy and the investment of the basic construct,and the result showed that the key driving factor of urban expansion is social economy(GDP)and population growth rate,which are impacted by policy to a great content.

Key words:  Urban expansion    NDBI    Expansion intension    Compact tolerance    Driving forces    Xi’an city
收稿日期: 2009-09-07 出版日期: 2010-10-19
基金资助:

国家重大基础研究项目(2007CB407203)。

作者简介: 冯晓刚(1979-),男,讲师,在职博士,主要从事环境遥感与GIS方面的研究工作。E-mail:fendao_ren@163.com。
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引用本文:

冯晓刚, 李 锐, 莫宏伟. 基于RS和GIS的城市扩展及驱动力研究—以西安市为例[J]. 遥感技术与应用, 2010, 25(2): 202-208.

FENG Xiao-gang, LI Rui, MO Hong-wei. Study of Urban Expansion and Driving Factor Using RS and GIS—A Case Study of  Xi’an City
. Remote Sensing Technology and Application, 2010, 25(2): 202-208.

链接本文:

http://www.rsta.ac.cn/CN/10.11873/j.issn.1004-0323.2010.2.202        http://www.rsta.ac.cn/CN/Y2010/V25/I2/202

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