한국환경복원기술학회지 (Journal of the Korean Society of Environmental Restoration Technology)
- 제4권4호
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- Pages.1-11
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- 2001
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- 1229-3032(pISSN)
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- 2733-5011(eISSN)
산림환경 및 하천형태인자에 의한 유역안정성 평가
Evaluation of Watershed Stability by the Forest Environmental and Stream Morphological Factors
- Jung, Won-Ok (Institute of Agriculture & Life Science, Gyeongsang National University) ;
- Ma, Ho-Seop (Division of Forest Science, College of Agriculture, Gyeongsang National University)
- 투고 : 2001.05.22
- 발행 : 2001.12.31
초록
This study was carried out to analyze the characteristics of forest environmental and stream morphological factors by using the quantification theory(I) for evaluation of the watershed stability. Present annual mean sediment yield of erosion control dams were investigated in 167 sites of erosion control dam constructed during 1986 to 1999 in Gyeongbuk. The results obtained from this study were summarized as follows; According to the coefficients of partial correlation, each factor affecting to sediment was shown in order of gravel contents, number of first streams order, number of total streams, length of total streams, forest type, length of main stream, parent rock, stand age, soil texture, stream order, slope gradient, soil depth and aspect. Descriptions of class I were as follow; Igneous rock of parent rock, hardwood stands of forest type, less than 20 year of stand age, less than 30cm of soil depth, sandy clay loam of soil texture, more than 41% of gravel contents, south~east of aspect, 2,501~3,500m of length of main stream, 21~25 of number of total streams, 5,501~10,000m of length of total streams, 3 or more than 4 of stream order, more than 16 of number of first stream orders and more than