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18.97.14.88
18.97.14.88
아연폐광산 주변 토양의 중금속 ( Cd , Cu , Zn , Pb ) 오염에 따른 5개 수종의 부위별 중금속 축적
Accumulation of Heavy Methals ( Cd , Cu , Zu , and Pb ) in Five Tree Species in Relation to Contamination of Soil near Two Closed Zinc - Mining Sites
한심희 , 현정오 , 이경준 , 조덕현 ( Sim Hee Han , Jung Oh Hyun , Kyung Joon Lee , Duck Hyun Cho )
UCI I410-ECN-0102-2008-520-001455806

This study was conducted to evaluate heavy metal concentrations(Cd, Cu, Z, and Pb) in the soil of two zinc mines and to correlate heavy metal contents between the soils and trees growing near the mines. Soils and leaves, stems, and roots of five tree species(Corylus heterophylla, Pinus rigida. Papulus alba × glandulosa, Rhododendron mucronulatum, and Rabinia pseudoacacia) were collected from Sambo Zinc Mine located in Hwasung and Gahak Zinc Mine in Kwangmyung city in Kyonggido. Soils near two zinc mines were not seriously contaminated by heavy metals, but Zn and Pb concentrations were at toxic level. The heavy metal concentration in soils decreased in the order of Zn, Pb, Cu, and Cd, and decreased with increasing distance from zinc mining sites. Among the five tree species, Populus alba × glandulasa showed the highest heavy metal concentrations in the tissue except for Pb. Particulars, leaves of the species contained the high concentrations of heavy metals to reach the maximum of 91ppm Zn. The roots of Corydus heterophylla contained high concentrations of Cu and Pb. The order of heavy metal concentrations in the tree species was Zn, Cu, Pb and Cd. The concentration of heavy metals in the tree tissues showed a positive correlation with that in soil in which trees are growing. The ratio of heavy metal concentration of trees to that of soils(concentration factor : CF) was highest in Zn and lowest in Pb. Populus alba×glandulosa had the highest CF value among the five tree species. It was concluded that Populus alba×glandulosa, based on the high metal uptake ability, could be used for decontaminating of heavy metals from contaminated soils, and Pinus rigida could be used to reflect the level of contamination in soils.

[자료제공 : 네이버학술정보]
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