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http://dx.doi.org/10.14578/jkfs.2019.108.4.552

Analysis of Characteristics of Landslide Susceptibility in Rugged Mountain Range in the Korean National Park  

Lee, Sung-Jae (Seoul National University Forest)
Lee, Eun-Jai (Forest Technology and Management Research Center, National Institute of Forest)
Ma, Ho-Seop (Division of Environmental Forest Science, Gyeongsang National University (Institute of Agriculture of Life Science))
Publication Information
Journal of Korean Society of Forest Science / v.108, no.4, 2019 , pp. 552-561 More about this Journal
Abstract
In korea, debris-flow disasters are induced by typhoon and localized torrential rainfall annually. These disasters are particularly severe in the Korean national park due to its geomorphological characteristics. This study was conducted to analyze the landslide characteristics and forest environmental factors of landslide areas located in rugged mountain range in the Korean national park (Mt. Seorak, Mt. Jiri, and Mt. Sobaek). Overall, landslides occurred at 474 sites. The average area of the landslide scar among these sites was 1,212 ㎡. The average landslide sediment was 1,389 ㎥, average landslide length was 75 m, and the average width was 12.9 m. The landslides frequently occurred in regions with igneous rock and coniferous forest. In addition, slope gradient degree (31°-40°), slope gradient direction (N), vertical slope (concave), cross slope (concave), altitude (401-800 m), position (middle), stream order (first order), forest type (mixed), parent rock (igneous), and soil depth (<46 cm). The relationship between landslide soil volume and environmental factors showed positive correlation. The variables of vertical slope (complex), altitude (<1,201 m), and soil depth (<46 cm) correlated significantly at 1 % level.
Keywords
landslide; Korean national park; forest environment factors; rugged mountain range;
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Times Cited By KSCI : 5  (Citation Analysis)
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