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http://dx.doi.org/10.7744/kjoas.20220074

Analysis of factors affecting vegetation cover for stabilization of granite weathered soil forest road cut slopes  

Seong-Man Kim (Korea Forest Service, Pyeongchang National Forest Station)
Sung-Min Choi (Korea Forest Engineer Institute)
Ye Jun Choe (Department of Forest Resources, Chungnam National University)
Yun-Jin Shim (Department of Landscape Architecture, Korea National College of Agriculture and Fisheries)
Joon-Woo Lee (Department of Environment and Forest Resources, Chungnam National University)
Publication Information
Korean Journal of Agricultural Science / v.49, no.4, 2022 , pp. 809-819 More about this Journal
Abstract
This study was conducted to improve the stability of cut slopes of forest roads in granitic weathered soil areas. The study area is a national forest road (road length 28.48 km) in Pyeongchang-gun, Gangwon-do. After data collection, a statistical analysis was performed using IBM SPSS (Ver. 26.0). First, the correlation analysis showed that structure, slope position, soil erosion, slope, and aspect (N, S) were correlated with vegetation coverage (p < 0.05). Elapsed years, slope distance, and aspect (E, W) were found to have no correlation with vegetation coverage. (p > 0.05) Second, one-way ANOVA and Kruskal-Wallis test results showed that vegetation coverage was worse when the slope was located at the top or the middle of the slope than at the bottom of the slope. In addition, the site with sheathing and gabions showed good vegetation coverage when compared with the site without structures. In the case of soil erosion, areas with severe damage and moderate damage showed worse vegetation coverage. Therefore, it is necessary to strengthen the slope angle of the cut soil of the granitic weathered soil area from 1 : 0.5 - 1.2 to 1 : 0.8 - 1.5. In addition, structures such as sheathing and gabions should be installed on granitic weathered land.
Keywords
ANOVA; correlation analysis; forest road disaster; Kruskal-Wallis test; vegetation coverage;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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