广西梧州大黎镇利达铅锌矿区土壤重金属污染评价

矿山的开发活动会对矿区及周围地区造成土壤重金属污染，针对广西梧州大黎镇铅锌矿矿区开发影响问题进行研究，通过测试矿山及其下游距离线性关系的深层和浅层土壤的重金属含量，采用相关性分析的方法分析土壤重金属来源，单因子污染指数、内梅罗指数等方法进行重金属污染评价，结果表明调查区内土壤受到一定的污染，在自然条件下矿山的长期开发、废弃矿石堆置等是造成污染的主要原因。通过本文的分析研究工作对铅锌矿开发造成的土壤重金属污染程度提供基础数据。

Evaluation of soil heavy metal pollution in Lida lead-zinc mining area of Dali town, Wuzhou, Guangxi

The development activities of the mine cause heavy metal pollution in the soil of the mining area and its surrounding areas. In the view of the Lida lead zinc mining area in Dali Town, Wuzhou, Guangxi was taken as the research object. By testing the heavy metal content in the deep and shallow soil with a linear relationship between the mining area and its downstream different distance, the source of heavy metal in the soil is analyzed by correlation analysis, and the heavy metal pollution is evaluated by single factor pollution index and Nemerow index. The results show that the soil in the investigation area is polluted to some extent, and the long-term development of the mine and the stacking of waste ore are the main causes of pollution under natural conditions. The analysis and research in this paper provide basic data for the degree of heavy metal pollution in soil caused by lead-zinc mine development.