The purpose of this study is to evaluate the hydrological impact due to temporal land cover change by gradual urbanization of Anseong-cheon Gongdo watershed (371.8km2). Land covers of 1981, 1990, 2000 Landsat TM images were classified by maximum likelihood method. The watershed showed a trend that forest & paddy areas decreased about 33km2 and 27km2, respectively and urban area increased about 11km2 during the periods. To identify the impact of streamflow due to urbanization, WMS HEC-1 was used. According to apply Huffs quartile storm events by changing land cover data, peak runoff discharge of each frequency rainfall (50, 100, 500 years) increased about 56, 36, 192m3/sec, respectively.

• 이미선 | Lee, Mi-Seon
• 박근애 | Park, Geun-Ae
• 권형중 | Kwon, Hyung-Joong
• 김성준 | Kim, Seong-Joon