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《Journal of Anhui Agricultural Sciences》 2012-11
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Study on Dynamic Evolution and Driving Mechanism of Built-up Area in Chengdu

ZHAO Yin-bing et al(Tourism and Urban-Rural Planning College,Chengdu University of Technology,Chengdu,Sichuan 610059)  
Urban morphology reflects the structure of urban functions,and it is important to study on urban morphological evolution.Four remote sensing images of 1978,1988,1997 and 2009 were collected,and the boundary of central city and adjacent suburbs of Chengdu was interpreted,then long axis,short axis,perimeter,area,elongation,shape ratio and compactness were calculated from the boundary.The results showed that during 1978-2009,the average annual growth of urban areas was 7.49%;the main direction of long axis was the northeast-southwest,and the main direction of short axis was west-east;urban center moved around the Tianfu Square,and shift gradually towards the southwest;urban elongation changed first decreased and then increased,shape ratio changed first increased and then decreased,compactness Increased continuously,and the urban developed from quantitative to qualitative.Urban morphology was influenced by natural,political,economic and cultural factors,the morphology shifted from round expansion to point-axis expansion,and center city district and surrounding counties achieved a spatial integration.
【Fund】: 国家自然科学基金(40972225);; 2010年高等学校博士学科点专项科研基金(20105122120014);; 四川省教育厅重点项目(11ZA048);; 成都理工大学中青年骨干教师培养计划
【CateGory Index】: TU984;P237
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