경남지역 논토양의 중금속함량 조사

초록

The management of heavy metals in soil is important for environmental-friendly agriculture and keeping an ecosystem healthy. In this study, we examined the concentrations of heavy metals (Cd, Cr, Cu, Ni, Pb, Zn, and As) in 260 paddy soils sampled from Gyeongnam Province. The concentrations of the heavy metals were 0.143 mg kg-1 (ranged 0.003-0.537) for Cd, 0.322 (0.002-0.986) mg kg-1 for Cr, 25.41 (6.03-76.19) mg kg-1 for Cu, 16.36 (2.63-32.94) mg kg-1 for Ni, 18.67 (4.16-87.02) mg kg-1 for Pb, 71.76 (22.99-153.58) mg kg-1 for Zn,and 3.516 (0.002-19.481) mg kg-1 for As, respectively. In addition, the concentration of Cd was highest in mountain foot-slope, Ni and As were highest in diluvial terrace, and Zn was highest in marine plains. Higher concentrations of Cd, Cu, and Zn were found in silty clay loam soils compared to silt loam, sandy loam, and loam soils.

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