CAJ | 학술논문

通过大田调查云南省某铅锌矿区周边农田的土壤及农作物（马铃薯和玉米）中重金属Cd、Pb含量，对该区域重金属污染现状进行评价，结果表明：该区域内土壤中Cd和Pb平均含量分别为12.93、2246.48 mg·kg-1，总体污染程度属于重污染；马铃薯内Cd、Pb含量分别为1.41、11.45 mg·kg-1，玉米籽粒中Cd、Pb含量分别为1.18、12.50 mg·kg-1。土壤重金属和土壤理化性质间的关系复杂，Cd与Pb之间呈极显著正关系，有效态Cd与总P、速效P呈极显著正相关关系；当pH≤6.5时，全量Cd和全量Pb与总P、速效P呈极显著正相关关系。该区域的土壤和食用作物已对当地居民的健康构成威胁。
통과대전조사운남성모연자광구주변농전적토양급농작물（마령서화옥미）중중금속Cd、Pb함량，대해구역중금속오염현상진행평개，결과표명：해구역내토양중Cd화Pb평균함량분별위12.93、2246.48 mg·kg-1，총체오염정도속우중오염；마령서내Cd、Pb함량분별위1.41、11.45 mg·kg-1，옥미자립중Cd、Pb함량분별위1.18、12.50 mg·kg-1。토양중금속화토양이화성질간적관계복잡，Cd여Pb지간정겁현저정관계，유효태Cd여총P、속효P정겁현저정상관관계；당pH≤6.5시，전량Cd화전량Pb여총P、속효P정겁현저정상관관계。해구역적토양화식용작물이대당지거민적건강구성위협。
Mining activities have contaminated the surrounding soils and crops. A field investigation was conducted in a lead-zinc mine in Yunnan Province to determine concentrations of Cd and Pb in cultivated soils and crops(potato and maize)and to evaluate their health risk. The average contents of Cd and Pb in soils were 12.93 mg·kg-1 and 2 246.48 mg·kg-1, respectively, belonging to heavy pollution. The con-tents of Cd and Pb in plants were respectively 1.41 mg·kg-1 and 11.45 mg·kg-1 in potato and 1.18 mg·kg-1 and 12.50 mg·kg-1 in maize. Significant positive relationship was observed between soil Cd and soil Pb contents, and between soil available Cd and soil total P content and available P contents. At soil pH≤6.5, total Cd and Pb were significantly positively correlated with total P and available P. The present results indicate that soil and crop contamination by heavy metals from mining has threatened the health of local residents.