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Effect of Forest Land Use on Soil Runoff in Small Watershed  

Ma, Ho-Seop (Division of Forest Environment Science, Gyeongsang National University(Institute of Agriculture Llife Science))
Kang, Won-Seok (Division of Forest Environment Science, Gyeongsang National University(Institute of Agriculture Llife Science))
Kang, Eun-Min (Division of Forest Environment Science, Gyeongsang National University(Institute of Agriculture Llife Science))
Publication Information
Journal of Korean Society of Forest Science / v.101, no.2, 2012 , pp. 220-225 More about this Journal
Abstract
This study was carried out to clarify the impact of land use (Castanea crenata, Pinus densiflora and Plantation Land) on soil runoff in small watershed. The soil runoff showed in order of plantation land, Castanea stand and Pinus stand. The resulting models in linear equations of three stands were able to account for 70%, 60% and 60% respectively. The relationship between soil runoff and forest environmental factors was a positive correlation at 1% level with slope, forest type, soil hardness, watershed area, stream length and at 5% level with accumulative rainfall, but was negative correlation at 1% level with coverage. The main factors that affected soil runoff in small watershed showed in order of coverage, accumulative rainfall and stand type. In the stepwise regression between soil runoff and forest environmental factors, the estimation equation is as follow; Y = 31.250 - 1.140(Coverage) + 0.413(Accumulative rainfall) + 20.829(Forest type). The results indicates that dangerous areas of landslide and soil runoff by land use could be applied to the mitigation measures such as afforestation, erosion check dam and revetment for erosion control and water quality management in small watershed.
Keywords
land use; soil runoff; forest environmental factors;
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Times Cited By KSCI : 1  (Citation Analysis)
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