Analysis of Characteristics of Plant, Soil Physical and Chemical of Salix spp. on the Environment of Namgang Dam Reservoir
2013
Park, J.H., Gyeongnam National University, jinju, republic of Korea | Kim, K.H., Gyeongnam National University, jinju, republic of Korea | Lee, S.B., Gyeongnam National University, jinju, republic of Korea
This study was carried out to examine characteristics of physical and chemical current status and problems of Salix spp. communities based on growth characteristics by tree age and height of the tree species in around Namgang Dam reservoir area, Tree density in 4 survey areas was 5,284 trees/ha, but all areas need to control high tree density. Tree crown area in 4 survey areas was 9,786.4m2/ ha and crown area of Salix spp. Was the most dominant among tree species in watershed of the Jinyang lake. Mean soil depth in 4 survey areas was 65.5 cm higher in the sedimental deposit soil(78cm)than in forest soil(12.5cm) near the watershed. Soil bulk density was also higher in the sedimental deposit soil than in forest soil because of poor porosity in the sandy sediment. sediment. Soil pH was higher in sedimental deposit soil(A,B horizon:pH 6.7) than in forest soil(Ahorizon:Ph 5.3; B horizon:PH 5.2) because of originated from non-point source pollution and detergent of domestic sewage. The results suggest that growth of Salix spp. Could be poor because of low fertility with low cation exchange capacity in sedimental deposit soil.
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