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http://dx.doi.org/10.3741/JKWRA.2003.36.6.1059

Estimation of Sediment Yield to Asan Bay Using the USLE and GIS  

Kim, Sang-Min (서울대학교 대학원 농공학과)
Park, Seung-Woo (서울대학교 농공학과)
Kang, Moon-Seong (미국 Auburn 대학교)
Publication Information
Journal of Korea Water Resources Association / v.36, no.6, 2003 , pp. 1059-1068 More about this Journal
Abstract
Geographic Information System (GIS) combined with Universal Soil Loss Equation (USLE) was used to estimate the soil erosion of Asan Bay experiment watershed in Korea. Spatial data for each USLE factors were obtained from the Landsat-5 TM remote sensing images and 1/25,000 scale digital contour maps. Sediment yield to Asan Bay was estimated by the sediment delivery ratio and trap efficiency. The estimated sediment yield was compared with observed on the Asan and Sapgyo estuary sub-watershed within Asan Bay experimental watershed for the period from 1981 to 2000. The calculated total annual sediment yields from Asan and Sapgyo estuary sub-watershed to Asan Bay were 5,665tonnes/yr and 6,766tonnes/yr, respectively. The measured sediment yields were 12,937tonnes/yr and 12,395tonnes/yr, respectively on an average.
Keywords
USLE; GIS; Asan Bay; soil erosion; sediment-delivery ratio; trap efficiency; USLE; GIS;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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