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http://dx.doi.org/10.14578/jkfs.2022.111.2.263

Analysis of Topography and Ground Characteristics of Landcreep Reoccurrence in the Yangpyeong Area  

Park, Jae Hyeon (Division of Environmental and Forest Science, Gyeonsang National University)
Lee, Sang Hyeon (Division of Environmental and Forest Science, Gyeonsang National University)
Publication Information
Journal of Korean Society of Forest Science / v.111, no.2, 2022 , pp. 263-275 More about this Journal
Abstract
We conducted this study to provide essential data for implementing restoration measures on the physical properties of the geology, topography, and soil of the landcreep areas in Yangpyeong-gun, Gyeonggi-do. The strata of the survey area comprised topsoil, weathered soil, weathered rock, and soft rock layers. The landcreep area, caused by colluvial debris, was located in a convex topography shape distributed as bedrock with shales and incorporated with sandstone. According to the measurement of the displacement meter, the surveyed area has crept from 1.1 mm to 6.5 mm during the recurrent landcreep between 1 July and 27 August, 2020. The landcreep had progressed over two directions (S65° W, E45° S, and E70° S) which were similar to the groundwater flow direction (E82.5° S and S16.8° W). The average slope of the landcreep area occurred on a gentle slope (19.3°), lower than the average slope of the mountain area (25°) in Korea. The bulk density in the groundwater areas was lower than that in other surveyed areas.
Keywords
landcreep; colluvial soil; ground water movement; restoration measures; soil bulk density; lower than the average slope of mountain;
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