杨伙盘矿区植物多样性及土壤污染物富集分析

Analysis of Plants Diversity and Soil Pollutant Enrichment in Yanghuopan Mining Area

为探索由于矿产的过度开发和开采对环境链和生态链的影响,本文主要对杨伙盘矿区植物多样性及土壤污染物富集性分析,采取蛇形采集方法和样方法进行试验样本收集。结果发现,杨伙盘矿区植物种类稀少,仅有草本植物16种、灌木植物4种,乔木植物2种。植物距离矿坑和排土场越远,则植物多样性指数越高。杨伙盘矿区土壤理化性质较差,整体环境不利于植物生长。Cd、Cu、Zn和Pb的土壤重金属污染物富集性较高。其中,Cd值累积量最高,已超过国家土壤二级环境标准。区域部分优势植物对土壤重金属污染物具有一定的富集能力和转移能力。

In order to explore the impact of over-exploitation and exploitation of minerals on the environmental chain and ecological chain,this paper mainly analyzed the plant diversity and soil pollutant enrichment in Yanghupan mining area,and adopted mixed sampling,random sampling and typical sampling methods to collect test samples.The results showed that there were only 16 species of herbaceous plants,4 species of shrub plants and 2 species of arbor plants in Yanghupan mining area.The farther the plant is from the mine and the dump,the higher the plant diversity index.The soil physical and chemical properties of Yanghupan mining area are poor,and the overall environment is not conducive to plant growth.Cd,Cu,Zn and Pb concentrations of soil heavy metal pollutants are higher.Among them,the accumulation of Cd value is the highest,which has exceeded the national soil secondary environmental standards.Some of the dominant plants in the region have a certain ability to accumulate and transfer heavy metal pollutants in soil.