海州露天煤矿排土场土壤现状评价

通过对海州露天煤矿排土场土壤进行调查取样,测试分析了海州露天煤矿排土场土壤中的重金属含量和营养元素含量,用单因子评价和模糊数学方法对5种重金属(铜、铅、镉、锰、锌)测试结果进行评价,认为海州露天煤矿排土场土壤中的主要污染重金属为铜、铅和镉,而锰和锌对土壤污染没有造成重大影响.对露天矿排土场重金属的分布规律进行了分析,综合评价了海州露天矿排土场的土壤环境状况.对氮、磷、钾及有机物质等的测试分析表明,海州露天煤矿排土场缺乏的营养元素主要为氮,在排土场土地复垦时应注意施加氮肥以提高肥效.

Analysis of soil condition on Haizhou Open Pit Coal Mine

This paper is aimed at introducing the authors' research on the relation of the contents of the heavy metals(Cu,Pb,Cd,Mn,Zn) and the soil nourishing situation due to the waste dump of the Haizhou Open-cut Coal Mine by using a single factor evaluation method and fuzzy math method through evaluating and monitoring the values of the above said five heavy metals.The results show that the main contaminating factors are Cu,Pb,Cr,Mn and Zn,which actually have no direct influence on the nutrition of the soil. As a result of analyzing the gained data,the paper has discovered the regularity and cause of the heavy metals distribution.Fully evaluating the synthetic role of each heavy metal using subjection degree function,it has grasped the environmental condition of the soil of the waste dump in diggings,which enables the authors to draw the conclusion that the waste dump of the soil with Haizhou Open Coal Mine lacks nitrogen.And,therefore,it is necessary to increase the amount of nitrogenous fertilizer to the soil.This paper can be taken as a reference to the research of the soil improving means of the Haizhou Open Coal Mine.