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《Science of Surveying and Mapping》 2012-06
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Analysis of temporal and spatial characteristics on urban land expansion in Ganyu County

XIE Hong-quan①,GUAN Qi-cheng②(①School of Geodesy & Geomatics Engineering,Huaihai Institute of Technology,Jiangsu Lianyungang 222005,China;②Huaian City Surveying and Mapping Office of Real Estate,Jiangsu Huaian 223001,China)  
Ganyu County as the development of urbanization in the eastern coastal city is particularly prominent.Three Landsat TM/ETM(1987,2000 and 2009)remote sensing images were selected as the primary data source,urban built-up areas were extracted by digital functions of using ArcGIS software,and overlay analysis was finished by 3 periods to extract the results,and the dynamic characteristics of urban expansion were analyzed by the area proportion of urban expansion,index of urban expansion,intensity index of urban expansion,index of urban compact and the fractal dimension model of urban land.
【Fund】: 连云港市科学技术局社会发展项目“基于遥感的连云港海岸带生态环境演变研究”(SH0811)
【CateGory Index】: F293.2;P208
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