USLE를 활용한 만경강 상류지역에서의 토양침식량 산정에 관한 연구A Study on the Estimation of Soil Erosion Quantity Using USLE in the Upper Region of ManKyoung River Basin
- Other Titles
- A Study on the Estimation of Soil Erosion Quantity Using USLE in the Upper Region of ManKyoung River Basin
- Authors
- 이재혁; 심은중; 이연길; 김태웅
- Issue Date
- Aug-2012
- Publisher
- 한국습지학회
- Keywords
- 범용토양유식공식; 토양침식량; 지리정보시스템; USLE(universal soil loss equation); Soil erosion; GIS(geographic information system)
- Citation
- 한국습지학회지, v.14, no.3, pp 317 - 328
- Pages
- 12
- Indexed
- KCI
- Journal Title
- 한국습지학회지
- Volume
- 14
- Number
- 3
- Start Page
- 317
- End Page
- 328
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/35038
- DOI
- 10.17663/JWR.2012.14.3.317
- ISSN
- 1229-6031
2384-0056
- Abstract
- 본 연구의 목적은 범용토양유실예측공식을 활용하여 모형의 적정성을 분석하고, 그 자료를 축적하는데 있다. 봉동 수위관측소의 유역면적은 342.27㎢이며, 유역에서의 유사유출량을 모의하고 이를 실측치와의 비교․분석하였다. 또한 토양침식량 산정에 있어 가장 큰 영향을 미치는 강우침식인자를 산정하기 위해 연도별 강우사상을활용하였고, 연평균토양침식량 산정을 위해 공간적인 분포를 나타낼 수 있는 격자기반의 토양침식도를 생성하여산정하였다. 토양침식도(30m×30m)는 강우침식인자(R), 지형인자(LS), 토양침식인자(K), 식생피복인자(C), 침식조절인자(P)를 ArcView Map Calculator에서 각각의 인자들을 곱하여 생성하였다. 그 결과 대부분의 유역에서 토양침식이 이루어지지 않음을 확인할 수 있었다.
The objects of this study are to perform appropriateness analysis of USLE(universal soil loss equation)model and to accumulate the data measured in field. The basin area of Bongdong station is 342.27㎢. This study simulated sediment outflows in the basin and performed a comparative analysis of simulated outputs with actual measurement values. Also annual rainfall was used to calculate rainfall-runoff erosivity factor which can influence soil erosion. The calculation of annual average soil erosion was made by soil erosion maps. The maps with a resolution of (30m×30m) were created by multiplication of factors(R, LS, K, C, P) from ArcView Map Calculator. In this paper, it was shown that soil erosion was not occur in the most of basin.
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