云南个旧锡矿区矿业活动对土壤重金属的累积贡献  

The contribution of the mining activities on the heavy metals accumulation insoils of the Gejiu tin deposit,Yunnan Province

作　　者：黄玉 蔡保新 王宇 李昊熹 柴金龙 

机构地区：[1]云南省地质环境监测院,云南昆明650216 [2]中国地质大学(武汉),湖北武汉430074

出　　处：《地质通报》2014年第8期1167-1174,共8页Geological Bulletin of China

基　　金：国土资源部公益性行业科研专项(编号:201111020-3)

摘　　要：矿业活动是土壤重金属累积的重要原因之一。分析云南个旧锡矿区矿业活动区、与矿业活动区地质条件相同的矿业活动影响区和未受矿业活动影响的参照区表层土壤7种重金属元素之间的相关性,以参照区表层土壤重金属总量、参照区土壤重金属似背景值分别评价矿业活动对矿业活动区和矿业活动影响区土壤重金属的累积贡献量和贡献率。结果表明,矿业活动区重金属累积贡献率排序为Pb>Zn>As>Cu>Cd>Cr>Hg,影响区重金属累积贡献率排序为Pb>Zn>As>Cu>Cd>Cr>Hg,Pb、Cd、As、Zn、Cu与矿业活动关系密切,矿业活动区Pb、Cd、As均表现为极高累积和极高风险,应作为矿业活动治理的重点元素。Mining activity is one of the important factors responsible for heavy metal accumulation in soil. The authors analyzed the relationships between seven kinds of soil heavy metal elements in the Gejiu mining area and the influenced area whose geological con-ditions is the same as the mining area in comparison with areas unaffected by mining activities. The heavy metal accumulation values and rates of mining activities on soils in the mining area and the influenced area were evaluated one by one in the light of total heavy metals and background-like values in surface soil of the compared area. The results show that the heavy metal accumulation values are in order of Pb〉Zn〉As〉Cu〉Cd〉Cr〉Hg in the mining area and Pb〉Zn〉As〉Cu〉Cd〉Cr〉Hg in the mining influenced area. There is close relationship between Pb, Cd, As, Zn, Cu and mining activities. Pb, Cd and As, characterized by high accumulation and high risk, should be most emphatically controlled in the mining area.

关 键 词：个旧锡矿区 矿业活动 土壤 重金属累积 

分 类 号：P618.44[天文地球—矿床学] X131.3[天文地球—地质学]