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http://dx.doi.org/10.14578/jkfs.2019.108.3.311

Analysis of GIS for Characteristics on the Slow-Moving Landslide: With a Special Reference on Slope and Grade of Landslide  

Park, Jae-Hyeon (Department of Forest Resources, Gyeongnam National University of Science and Technology)
Seo, Jung Il (Depertment of Forest Resources, Kongju National University)
Lee, Changwoo (Division of Forest Disaster Management, National Institute of Forest Science)
Publication Information
Journal of Korean Society of Forest Science / v.108, no.3, 2019 , pp. 311-321 More about this Journal
Abstract
This study was carried out to establish basic data for the development of slow-moving landslide hazard classes. Mountain slopes in slow-moving landslide areas ranged from $11.8^{\circ}$ to $37.0^{\circ}$ with a mean slope of $23.8^{\circ}$. However, the slope inclination of microtopography in slow-moving landslide areas was slightly different, with a mean slope of $23.5^{\circ}$ ($10.7^{\circ}{\sim}41.5^{\circ}$) compared with the mountain slope. There was a significant difference (p < 0.05) between the contour intervals of microtopography and the contour intervals of the slow-moving landslide areas. Among all the slow-moving landslide areas examined, 14 plots (approximately 38.0%) were classified into landslide hazard class I, 6 plots (approximately 16.0%) into landslide hazard class II, 5 plots (approximately 14.0%) into landslide hazard class III and IV, and 16 plots (approximately 43.0%) into landslide hazard class V, whereas 9 plots (approximately 24.0%) fit the no landslide hazard class.
Keywords
slow-moving landslide; slow-moving landslide hazard classes; microtopography; landslide hazard class;
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