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http://dx.doi.org/10.3741/JKWRA.2005.38.4.301

Analysis of Runoff Impact by Land Use Change - Using Grid Based Kinematic Wave Storm Runoff Model (KIMSTORM) -  

Kim, Seong-Joon (Dept. of Civil and Environmental Engrg., Konkuk Univ.)
Park, Geun-Ae (Dept. of Rural Engrg., Konkuk Univ.)
Chun, Moo-Kab (Korea Agricultural and Rural Infrastructure Corporation)
Publication Information
Journal of Korea Water Resources Association / v.38, no.4, 2005 , pp. 301-311 More about this Journal
Abstract
The purpose of this study is to assess the quantitative effect of stream discharge due to land use changes. The upstream watershed of Pyeongtaek gauging station of Anseong-cheon ($592.6\;km^2$) was adopted. To accomplish the purpose, firstly, trace land use changes for the selected watershed which have some changes of land use by using Landsat images of 1986 and 1999 of the watershed and secondly, analyse the quantitative effect of stream discharge due to land use changes by applying GIS- based distributed hydrologic model KIMSTORM. The model was calibrated and verified at 2 locations (Pyeongtaek and Gongdo) by comparing observed with simulated discharge results for 7 storm events from 1998 to 2003. Model output was designed to provide information of land use impact on runoff components in the watershed and the sensitivity of impact level of each land use category on storm runoff. Land use impact was evaluated with the land use data sets for 1986 and 1999 for the same rainfall condition (160.5 mm). Area decrease of 4.8 percent of forest and 4.0 percent of paddy field during 13 years (1986 - 1999) within the watershed caused a 30.3 percent increase of peak runoff and a 9.3 percent increase of runoff volume.
Keywords
land use change; runoff impact; KIMSTORM; distributed model;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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