• Monthly Sediment Yield Estimation Based on Watershed-scale Application of ArcSATEEC with Correction Factor
  • Eun Seok Kim1 ·Hanyong Lee1 ·Jae E Yang2 ·Kyoung Jae Lim3 ·Youn Shik Park1,*

  • 1 Rural Construction Engineering, Kongju National University, Chungcheongnam-do 32439, Korea
    2 Department of Biological Environment, Kangwon National University, Gangwon-do 24341, Korea
    3 Department of Regional Infrastructure, Kangwon National University, Gangwon-do 24341, Korea

  • 보정계수 적용을 통한 유역에 대한 ArcSATEEC의 월별 토양유실량
  • 김은석1 ·이한용1 ·양재의2 ·임경재3 ·박윤식1, *

  • 1 공주대학교 지역건설공학과
    2 강원대학교 바이오자원환경학과
    3 강원대학교 지역건설공학과

Abstract

The universal soil loss equation (USLE), a model for estimating the potential soil loss, has been used not only in research areas but also in establishing national policies in South Korea. Despite its wide applicability, USLE cannot adequately address the effect of seasonal variances. To overcome this limit, the ArcGIS-based Sediment Assessment Tool for Effective Erosion (ArcSATEEC) has been developed as an alternative model. Although the field-scale (< 100 m2) application of this model produced reliable estimation results, it is still challenging to validate accuracy of the model estimation because it only estimates potential soil losses, not the actual sediment yield. Therefore, in this study, a method for estimating actual soil loss based on the ArcSATEEC model was suggested. The model was applied to eight watersheds in South Korea to estimate sediment yields. Correction factor was introduced for each watershed, and the estimated sediment yield was compared with that of the estimated yield by LOAD ESTimator (LOADEST). Sediment yield estimation for all watersheds exhibited reliable results, and the validity of the proposed correction factor was confirmed, suggesting the correction factor needs to be considered in estimating actual soil loss.


Keywords: ArcSATEEC, sediment delivery ratio, soil loss, USLE

This Article

  • 2020; 25(3): 52-64

    Published on Sep 30, 2020

  • 10.7857/JSGE.2020.25.3.052
  • Received on Aug 31, 2020
  • Revised on Sep 11, 2020
  • Accepted on Sep 17, 2020

Correspondence to

  • Youn Shik Park
  • Rural Construction Engineering, Kongju National University, Chungcheongnam-do 32439, Korea

  • E-mail: parkyounshik@gmail.com