지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.4
- 수록면
- 13 - 27 (15page)
이용수
초록· 키워드
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Catchments soil erosion, one of the most serious problems in the mountainous environment of the world, consists of a complex phenomenon involving the detachment of individual soil particles from the soil mass and their transport, storage and overland flow of rainfall, and infiltration. Sediment size distribution during erosion processes appear to depend on many factors such as rainfall characteristics, vegetation cover, hydraulic flow, soil properties and slope. This study involved laboratory flume experiments carried out under simulated rainfall in a 3.0 m long × 0.8 m wide × 0.7 m deep flume, set at 17° slope. Five experimental cases, consisting of twelve experiments using three different sediments with two different rainfall conditions, are reported. The experiments consisted of detailed observations of particle size distribution of the out-flow sediment. Sediment water mixture out-flow hydrograph and sediment mass out-flow rate over time, moisture profiles at different points within the soil domain, and seepage outflow were also reported. Moisture profiles, seepage outflow, and movement of overland flow were clearly found to be controlled by water retention function and hydraulic function of the soil. The difference of grain size distribution of original soil bed and the out-flow sediment was found to be insignificant in the cases of uniform sediment used experiments. However, in the cases of non-uniform sediment used experiments the outflow sediment was found to be coarser than the original soil domain. The results indicated that the sediment transport mechanism is the combination of particle segregation, suspension/saltation and rolling along the travel distance.
목차
ABSTRACT
1. Introduction
2. Experimental Method
3. Results and Discussions
4. Conclusions
References
참고문헌 (46)
참고문헌 신청
1. [학술지(정기간행물)] - Aksoy, H. / 2012 / A rainfall simulator for laboratory-scale assessment of rainfall-runoff-sediment transport processes over a two-dimensional flume / Catena 98 : 63 ~ 72
2. [학술지(정기간행물)] - Ali, M. / 2012 / Effect of hydraulic parameters on sediment transport in overland flow over erodible beds / Hydrology and Earth System Sciences 16 : 591 ~ 601
3. [학술지(정기간행물)] - Asadi, H. / 2007 / Interrill soil erosion processes and their interaction on low slopes / Earth Surface Processes and Landforms 32 (5) : 711 ~ 724
4. [학술지(정기간행물)] - Asadi, H. / 2007 / An investigation of flow-driven soil erosion processes at low stream powers / Journal of Hydrology 342 (1) : 134 ~ 142
5. [학술지(정기간행물)] - Asadi, H. / 2011 / Flow-driven soil erosion processes and the size selectivity of sediment / Journal of Hydrology 406 (1) : 73 ~ 81
2. [학술지(정기간행물)] - Ali, M. / 2012 / Effect of hydraulic parameters on sediment transport in overland flow over erodible beds / Hydrology and Earth System Sciences 16 : 591 ~ 601
3. [학술지(정기간행물)] - Asadi, H. / 2007 / Interrill soil erosion processes and their interaction on low slopes / Earth Surface Processes and Landforms 32 (5) : 711 ~ 724
4. [학술지(정기간행물)] - Asadi, H. / 2007 / An investigation of flow-driven soil erosion processes at low stream powers / Journal of Hydrology 342 (1) : 134 ~ 142
5. [학술지(정기간행물)] - Asadi, H. / 2011 / Flow-driven soil erosion processes and the size selectivity of sediment / Journal of Hydrology 406 (1) : 73 ~ 81
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UCI(KEPA) : I410-ECN-0101-2015-530-001217567