CAJ | 학술논문

[目的]评价五指山茶园表层土壤重金属污染的危害程度.[方法]采样分析五指山茶园表层土壤重金属(Cr、Ni、Cu、Zn、As、Cd、Pb)的平均含量及富集状况,分别以现代工业化以前沉积物中重金属的全球最高背景值和我国<土壤环境质量标准>的一级自然背景值为参比值,采用潜在生态危害指数法对五指山茶园表层土壤重金属的富集系数和生态危害系数以及生态危害指数进行了评价.[结果]以2种背景值为参比得出的重金属污染水平相近,Cd和Pb是对五指山茶园表层土壤生态环境具有潜在影响的主要重金属元素.[结论]该研究结果为五指山茶园重金属污染修复、茶园生态系统科学管理、保证五指山茶叶的优质高产提供了理论依据.
[목적]평개오지산다완표층토양중금속오염적위해정도.[방법]채양분석오지산다완표층토양중금속(Cr、Ni、Cu、Zn、As、Cd、Pb)적평균함량급부집상황,분별이현대공업화이전침적물중중금속적전구최고배경치화아국<토양배경질량표준>적일급자연배경치위삼비치,채용잠재생태위해지수법대오지산다완표층토양중금속적부집계수화생태위해계수이급생태위해지수진행료평개.[결과]이2충배경치위삼비득출적중금속오염수평상근,Cd화Pb시대오지산다완표층토양생태배경구유잠재영향적주요중금속원소.[결론]해연구결과위오지산다완중금속오염수복、다완생태계통과학관리、보증오지산다협적우질고산제공료이론의거.
[Objective] The aim of this study is to investigate hazard assessment on heavy metal pollution in surface soil from tea gardens of Wuzhishan. [Method] The average content and accumulation status of heavy metals including Cr, Ni, Cu, Zn, As, Cd and Pb in surface soil from tea gardens of Wuzhishan was collected. Taking the highest global background value of heavy metals in sediments before modern industrialization and the first-class natural background value of Soil Environment Quality Standard in China as the reference value respectively, the accumulation or ecological hazard coefficient and the ecological hazard index of heavy metals in surface soil from tea gardens of Wuzhishan were assessed by potential ecological risk index. [Result] The pollution level with two kinds of background values as the reference value was similar,while Cd and Pb were main heavy metals which had potential impact on ecological environmental in surface soil from tea gardens of Wuzhishan.[Conclusion] The potential risk level of heavy metals in surface soil from tea gardens of Wuzhis han belongs to the slight-medium pollution level,and the heavy metal with potential risk is mainly Cd.