大金山岛土壤重金属污染评价及相关性分析  

Assessment and Correlation Analysis of Heavy Metals Pollution in Soil of Dajinshan Island

作　　者：程芳[1,2] 程金平[2] 桑恒春 于金莲[1] 席磊[2] 皮帅帅[2] 

机构地区：[1]上海师范大学生命与环境科学学院,上海200234 [2]上海交通大学环境科学与工程学院,上海200240 [3]上海市海洋事务管理中心,上海200050

出　　处：《环境科学》2013年第3期1062-1066,共5页Environmental Science

基　　金：上海市海洋管理事务中心项目

摘　　要：大金山岛是上海自然陆地海拔最高点,为了探明大金山岛陆域土壤重金属污染状况及其相关性,本研究以网格法及蛇形采样法进行布点采样,采用单因子污染指数法及潜在生态危害指数法对大金山岛陆域土壤环境重金属污染状况进行评价.结果表明,大金山岛陆域土壤重金属基本符合一级土壤标准,其中Cd有轻微污染,样品超标率为85.4%;其次是Pb,超标率为26.8%;Zn和Cu未超标.Pb-Cu、Pb-Zn、Cu-Zn之间在P=0.05水平有显著正相关性,说明其同源性较高,受成土母质影响很大,这也间接说明大金山岛被保护尚好,受人为活动影响较小.The Dajinshan Island is the highest altitude point in the nature land of Shanghai. In order to find out the status of soil heavy metals pollution of the Dajinshan Island and its correlation, this paper used the methods of grid and serpents sampling to collect samples, and applied the single factor pollution index method and potential ecological harm index method to assess the pollutions status. The results showed that the main contributor of soil heavy metal pollution in Dajinshan Island was Cd, with an over-standard rate of 85.4% , followed by Pb, with an over-standard rate of 26.8% , whereas Zn and Cu were not excessive. In addition, there was significant positive correlation between Pb-Cu, Pb-Zn and Cu-Zn at the level of P = 0. 05, suggesting that they had high homology and were easily influenced by the soil forming materials. This was an indirect evidence that the Dajinshan Island was well protected and not much affected by human activities.

关 键 词：大金山岛 重金属 土壤污染 评价 相关性 

分 类 号：X53[环境科学与工程—环境工程]