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Development and Application of SATEEC L Module for Slope Length Adjustment Based on Topography Change
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 Title & Authors
Development and Application of SATEEC L Module for Slope Length Adjustment Based on Topography Change
Kang, Hyun-Woo; Kim, Ki-Sung; Park, Youn-Shik; Kim, Nam-Won; Ok, Yong-Sik; Kim, Jong-Gun; Choi, Yun-Ho; Lim, Kyoung-Jae;
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 Abstract
Severe sediment-laden problem has been the hot issue in Korea. It was assumed that agricultural activities and landslides were the primary causes of these problems in watersheds. The USLE-based systems have been widely used in soil erosion studies. However the GIS-based USLE modeling system has limitation in USLE L factors. In this study, the SATEEC L module was developed to reflect the slope length segmentations in the fields. The SATEEC L module was applied to the study watershed to analyze the effects of using the SATEEC L module on estimated sediment. As shown in the comparisons between SATEEC estimated sediment with SWAT values, the SATEEC GA-SDR module derives the SDR with reasonably acceptable accuracies. However, it is worthy to note that the soil erosion using the SATEEC L module for the study watershed was lower than that without using the SATEEC L module by 25%, although the SATEEC estimated sediment values with and without using L module match the SWAT sediment values with similar accuracies. This is because the SATEEC GA-SDR module estimates lower SDR in case of greater soil erosion estimation without the L module and greater SDR in case of lower soil erosion estimation with the L module. This indicates that the SATEEC input parameters, especially L factor, need to be prepared with care for accurate estimation of SDR at a watershed scale and for accurate evaluation of BMPs in the watershed.
 Keywords
USLE;SATEEC;Soil Erosion;Field Slope Length;LS;
 Language
English
 Cited by
1.
일강우를 고려한 SATEEC R 모듈 적용성 평가,우원희;문종필;김남원;최재완;김기성;박윤식;장원석;임경재;

한국물환경학회지, 2010. vol.26. 5, pp.841-849
2.
SATEEC L모듈을 이용하여 토양유실량 산정 정확성이 유사량 예측에 미치는 영향 평가,우원희;장원석;김익재;김기성;옥용식;김남원;전지홍;임경재;

한국농공학회논문집, 2011. vol.53. 2, pp.19-26 crossref(new window)
3.
산불 후 입지에 따른 소나무 분포와 환경 요인 - 강원도 고성군을 중심으로 -,신문현;임주훈;공우석;

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