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http://dx.doi.org/10.7857/JSGE.2017.22.6.029

A Study to Define Area of Concern for Potential Soil Loss in Geumgang Watershed by KORSLE-based GIS model  

Kim, Jonggun (Dept of Regional Infrastructure Engineering, Kangwon National University)
Yang, JaeE (Dept of Biological Environment, Kangwon National University)
Lim, Kyoung Jae (Dept of Regional Infrastructure Engineering, Kangwon National University)
Kim, Sung Chul (Bio Environmental Chemistry, Chungnam National University)
Lee, Giha (Dept of Construction and Disaster Prevention Engineering, Kyungpook National University)
Hwang, Sangil (Korea Environment Institute)
Yu, Nayoung (Rural Construction Engineering, Kongju National University)
Park, Youn Shik (Rural Construction Engineering, Kongju National University)
Publication Information
Journal of Soil and Groundwater Environment / v.22, no.6, 2017 , pp. 29-36 More about this Journal
Abstract
Universal soil loss equation (USLE) has been frequently employed to estimate potential soil loss in land since it was developed based on the statewide data measured and collected in the United States. The equation is an empirical model mainly used for U.S. soil, thus it has been recently modified to reflect Korean soil conditions and named as Korean Soil Loss Equation (KORSLE). The modified equation was implemented in ArcGIS software, and used for estimation of potential soil loss from 2003 to 2016 in the thirty-eight Water Protection Districts. Five out of the thirty-eight districts were identified as the area of potential soil erosion most severly. In those five districts, potential soil erosion were estimated to be more than 50 Mg/ha/year that requires site investigation under supervision of the Korean Ministry of Environment. Distinctive site characteristics were found in the potential soil loss estimation such that the districts of low potential soil loss had low five factors in the aggregate. However, if one of more factors are dominantly large, the potential soil loss significantly increased. This study provides a useful tool to identify the potential areas for soil erosion and the important factors that play an important role in the estimation process.
Keywords
KORSLE; GIS; USLE; Soil erosion; Water protection district;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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