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http://dx.doi.org/10.9720/kseg.2014.1.69

Effect of Rainfall Intensity, Soil Slope and Geology on Soil Erosion  

Nam, Koung-Hoon (Department of Earth and Environmental Sciences, Andong National University)
Lee, Dal-Heui (Sung Ji Engineering Co., Ltd.)
Chung, Sung-Rae (Sung Ji Engineering Co., Ltd.)
Jeong, Gyo-Cheol (Department of Earth and Environmental Sciences, Andong National University)
Publication Information
The Journal of Engineering Geology / v.24, no.1, 2014 , pp. 69-79 More about this Journal
Abstract
This study aims to elucidate the relative importance of geological characteristics, soil slope, and rainfall intensity in relation to soil erosion. To this end, indoor rainfall simulation experiments were carried out under different conditions of rainfall intensities, soil slope, and geological characteristics. The test results show that the factors affect soil erosion in the order of soil slope > rainfall intensity > organic content in the soil. Erosion rates were proportional to rainfall, and increase with increasing clay content. Therefore, the soil erosion rate increases strongly with increasing organic content and clay content. The results show that the soil erosion rate in areas of metamorphic rocks shows a marked increase compared with areas of steep slope and sedimentary rocks. These results indicate that the geological characteristics to produce soil are closely related to sedimentation before and after erosion, providing basic information for the development of models to predict soil erosion rates.
Keywords
Soil erosion; Rainfall intensity; Soil slope; Rainfall simulation; Geological characteristics;
Citations & Related Records
Times Cited By KSCI : 6  (Citation Analysis)
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