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http://dx.doi.org/10.7744/cnujas.2011.38.1.153

Spatio-temporal change detection of land-use and urbanization in rural areas using GIS and RS - Case studies of Yongin and Anseong regions -  

Gao, Yujie (Dept. of Agricultural Engineering, Chungnam National University Graduate School)
Kim, Dae-Sik (Dept. of Agricultural and Rural Engineering, Chungnam National University)
Publication Information
Korean Journal of Agricultural Science / v.38, no.1, 2011 , pp. 153-162 More about this Journal
Abstract
This study analyzed the spatio-temporal change detection of land-use and urbanization in Yongin and Anseong regions, Kyunggi Province, using three Landsat-5 TM images for 1990, 1996, and 2000. Remote sensing (RS) and geographic information system (GIS) techniques were used for image classification and result analysis. Six land-use types were classified using supervised maximum likelihood classification. In the two study areas, the land-use changed significantly, especially the decrease of arable land and forest and increase of built-up area. Spatially, the urban expansion of Yongin region showed a spreading trend mainly along the national road and expressways. But in Anseong region the expansion showed 'urban sprawl phenomenon' with irregular shape like starfish. Temporally, the urban expansion showed disparity - the growth rates of urbanized area rose from the period 1990-1996 to 1996-2000 in both study areas. The increased built-up areas were converted mainly from paddy, dry vegetation, and forest.
Keywords
Change detection; Urban expansion; Land-use; Expressway;
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