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沈阳市城区扩展动态监测与驱动力分析
引用本文:王秋兵,卢娜,边振兴.沈阳市城区扩展动态监测与驱动力分析[J].资源科学,2008,30(7):1068-1075.
作者姓名:王秋兵  卢娜  边振兴
作者单位:沈阳农业大学土地与环境学院,沈阳,110161
摘    要:以不同时相的遥感数据(MSS、TM、ETM、CBERS-2)为信息源,对沈阳市1979年~2006年的城区扩展及其扩展过程中引起的土地利用变化进行动态监测,并对引起城区扩展的驱动力进行简要分析。结果表明:沈阳市在监测的27年间城区扩展速度与方向不均衡,建成区面积1979年为163.33km2,2006年扩展到360.5km2,27年间共增加了197.17km2,面积扩大了2.2倍,平均每年扩展7.3km2,其中2001年~2006年城区扩展最为迅速,以“跃迁”式扩展模式向南部和北部扩展,形成新的卫星城,城区质心变化相对不大;城区扩展对城市边缘土地利用的影响主要是以占用耕地和城乡、工矿、居民点的融入为主,影响面积为157.78km2,占扩展总面积的80.02%,而对水域、林地影响较小,影响面积为39.39km2,占扩展总面积的19.98%;采用主成分分析法对沈阳市1996年~2005年的社会因素、经济因素和技术因素中的23个驱动因子数据进行定量化研究,结果表明引起沈阳市城区扩展的主要驱动力是社会经济发展因素,且社会经济驱动力得分始终处于增长状态表明其影响沈阳市城区扩展的作用在逐渐增强。

关 键 词:城区扩展  土地利用变化  主成分分析  驱动力  沈阳市  城区扩展  动态监测  驱动力分析  Expansion  City  Shenyang  Driving  Forces  逐渐增强  作用  状态表  增长  经济驱动力  经济发展因素  主要驱动力  定量化研究  因子数据  经济因素  社会  成分分析法
修稿时间:4/1/2008 12:00:00 AM

Dynamics and Driving Forces of Shenyang City Expansion
WANG Qiu-bing,LU Na and BIAN Zhen-xing.Dynamics and Driving Forces of Shenyang City Expansion[J].Resources Science,2008,30(7):1068-1075.
Authors:WANG Qiu-bing  LU Na and BIAN Zhen-xing
Abstract:During the process of urbanization, changes in the urban marginal zone are the most substantial and rapid, so gathering information on land use change in this marginal zone is a crucial component of research on urban expansion. The first section of the paper describes the interpretation of different remote sensing images (MSS, TM, ETM, and CBERS-2) to assess urban expansion and land use change in Shenyang from 1979 to 2005. The second part involves quantitative analysis of 23 factors related to driving forces, in three categories-social, economic and technical-to analyze the drivers of Shenyang's urban expansion from 1996 to 2005. The rate and direction of urban expansion were highly variable during the study period. The built-up area of Shenyang was 163.33km2 in 1979 and expanded to 360.5km2 to 2006, an increase of 197.17km2. The city scale in 2006 was 2.2 times that of 1979, with an average annual expansion of 7.3km2. Built-up area expanded most rapidly during 2001 to 2006, largely expanding towards the south and north to form new satellite towns, while the city center experienced relatively little change. The urban expansion had some influence on land use in the urban marginal zone, mainly that urban expansion occupied farmland and that separate urban areas and rural areas became consolidated into the built-up district. The total area influenced was 157.78km2, accounting for 80.02% of total expansion area. The area of water bodies and forested land influenced by urban expansion was small, only 39.39km2, or 19.98% of the total expansion area. There were two principal sets of factors affecting Shenyang urban expansion: population and economic factors and technical factors. The effect of these driving forces on urban expansion has increased gradually, so that population growth, economic development, enhanced transportation and technological advancement have all contributed to city expansion, and their influence has strengthened. National economic and policy support has provided the broader development opportunities for Shenyang and promoted the city's expansion.
Keywords:Urban expansion  Land use change  Principal component analysis  Driving force
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