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KMID : 1024520130220091079
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Journal of the Environmental Sciences
2013 Volume.22 No. 9 p.1079 ~ p.1088
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Runoff Characteristics of Rapid Urban Expansion Area according to The Type of Land Use
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Park Ki-Bum
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Abstract
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The objective of this paper is compare to landuse type for calculating peak flood and soil loss in rapidly expansion urban area. This study compares two landuse maps, including numerical landuse map and aerial photograph landuse map, for calculating the ratio of urban and agriculural area, curve number, time of concentration, peak flood discharge, and soil loss. It is found that flood discharge calculated using aerial photograph landuse map are larger than that calculated using numerical landuse map, and soil loss calculated using aerial photograph landuse map are smaller than that calculated using numerical landuse map. Results also indicate that landuse chage in rapidly expansion urban area significantly influences flood discharge and soil loss.
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KEYWORD
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Landuse, Runoff, Rapid urban expansion, RUSLE
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