도시의 자연배수능력 평가를 위한 유역 내 환경특성과 침수피해면적의 관계

• 영문명: Relationship between Inundated Areas and Environmental Characteristics in Watershed for Natural Drainage Capacity Assessment in Urban Area
• 발행기관: 한국방재학회
• 저자명: 정경진 김민정 김옥수 Chung, Kyung-Jin Kim, Min-Jung Kim, Ok-Soo
• 간행물 정보: 『3. 한국방재학회 학술대회논문집』2007년, 211~216쪽, 전체 6쪽
• 주제분류: 공학 > 기타공학
• 파일형태: PDF
• 발행일자: 2007.02.22

영문 초록

The purpose of this study was to establish the basic information for natural drainage capacity assessment in urban area. We sorted midium watershed of Han river and Nak-dong river, and selected 30 rainfall events during 1995 to 2000 according to high level of damage. The inundated area showed high watershed slope about 25% and it indicated the greatest damage around the watershed located in 200-300m of altitude. Besides, the great damage by inundation was occurred in the mountainous agriculture region, where the forest scale was high and the urbanization was being progressed gradually. However, inundated area was small in case of grassland, water tone such as riparian area, bare ground and wetland. Moreover, the inundated area was different according to river shape and characteristics of river distribution such as the density of the stream order, conservation constant of the river system, and the number of undulations in the watershed. Therefore, it showed that land use, river shape and distribution characteristics of stream influence on inundation.

키워드

Natural drainage capacity Inundated area River system Land use River shape