百里杜鹃矿区附近土壤重金属潜在生态风险及环境容量研究

Study on Potential Ecological Risk and Environmental Capacity of Heavy Metal in Soil nearby Baili Rhododendron Mining Areas

[目的]研究百里杜鹃景区土壤重金属污染的现状。[方法]选取矿区附近的土壤测定其重金属含量,采用Hakanson潜在生态危害指数法和环境指数法对其进行潜在生态危害评价和环境容量分析。[结果]重金属对矿区附近的土壤已造成不同程度的生态危害,尤其是Hg和Cd,其中离矿区较近的位置达到了高生态危害水平,土壤环境对重金属的承载力很低,处于警戒水平或无容量状态。[结论]在开采百里杜鹃矿产资源的同时,应尽快着手治理景区内土壤重金属污染。

[Objective]The aim was to study the status quo of heavy metal pollution in soil in Baili Rhododendron mining areas.[Method]The soil nearby the mining areas was selected to carry out the heavy metal contents determination,and the potential ecological risk evaluation and environmental capacity were analyzed based on Hakanson potential ecological risk indexes method and environmental indexes method.[Result]Heavy metal had already generated a different ecological harmfulness to soil nearby the mining areas,especially Hg and Cd,the nearest was in high risk,moreover,the bearing capacity of heavy metals to soil was lower,just in warning level or no capacity state.[Conclusion]As mined Baili Rhododendron mining areas,we should prevent and control heavy metals pollution within scenic regions quickly.