CAJ | 학술논문

在青海东部地区表层、深层土壤重金属调查基础上，根据国家《土壤重金属污染评价标准》（ GB15618?1995），对土壤中重金属污染状况进行评价；重点选择甘河滩地区，对区内单点样、植物样、水样、地球化学剖面结果进行探讨；比较了Cd、Hg在不同时期污染形势的变化。综合分析认为，青海省东部地区重金属污染总体上并不严重，但在甘河滩一带Zn、Cd、Pb在不同介质中形成较为明显的循环污染，污染程度已达深层，不适宜农业发展；时间尺度上，Cd污染有加剧趋势，Hg污染状况有所改善。
재청해동부지구표층、심층토양중금속조사기출상，근거국가《토양중금속오염평개표준》（ GB15618?1995），대토양중중금속오염상황진행평개；중점선택감하탄지구，대구내단점양、식물양、수양、지구화학부면결과진행탐토；비교료Cd、Hg재불동시기오염형세적변화。종합분석인위，청해성동부지구중금속오염총체상병불엄중，단재감하탄일대Zn、Cd、Pb재불동개질중형성교위명현적순배오염，오염정도이체심층，불괄의농업발전；시간척도상，Cd오염유가극추세，Hg오염상황유소개선。
According to the investigation of heavy metal content in topsoil and deep soil in the east of Qinghai, the authors used Nation?al Standard ( GB15618?1995) as the evaluation standard. The status of heavy metals in the soil was evaluated, and the situation of heavy metal pollution in Ganhetan was discussed by combining single soil samples, plant samples, water samples and geochemical sec?tions. Two heavy metals ( Cd, Hg) were selected to compare the situation of their pollution in different periods. The results indicate that the heavy metal pollution in eastern Qinghai is not serious, but some heavy metals such as Zn, Cd, Pb in Ganhetan have formed obvi?ous circular pollution, and the pollution has reached deep soil. Agricultural development is not suitable in this area. It is found that the pollution of some heavy metals such as Cd has aggravated, whereas pollution of some heavy metals like Hg has been reduced.