土壤重金属污染特征及生态风险监测研究  

Characteristics of Soil Heavy Metal Pollution and Ecological Risk Monitoring

作　　者：倪洁 Ni Jie(Hebei Province Ecology Environmental Monitoring Center, Hengshui 053000, China)

机构地区：[1]河北省衡水生态环境监测中心,河北衡水053000

出　　处：《环境科学与管理》2021年第5期55-58,共4页Environmental Science and Management

摘　　要：土壤重金属污染问题日益严峻,影响生态环境的可持续发展,因此,提出对土壤重金属污染特征及生态风险展开监测,根据土地利用现状图与遥感影像等数据资料,结合地势走向与土壤特征等情况,在研究区域中设立监测点,基于国家土壤质量二级标准的重金属含量,利用单因子指数法与内梅罗综合污染指数法,评价土壤当前污染状态。经分析发现,Cu元素对土壤污染程度的影响最大,依据土壤潜在生态风险系数与风险指数可知,该元素具有超高的生态风险,是土壤重金属污染的主要元素。The problem of heavy metal pollution in soil is becoming more and more serious and affects the sustainable development of the ecological environment.Therefore,the characteristics of soil heavy metal pollution and ecological risks are monitored.According to data such as land use status maps and remote sensing images,combined with terrain trends and soil characteristics,etc.,the paper establishes the monitoring points in the study area,based on the heavy metal content of the national soil quality secondary standard.It uses the single factor index method and the Nemeiro comprehensive pollution index method to evaluate the current soil pollution status.It is found that Cu element has the greatest impact on the degree of soil pollution.According to the soil potential ecological risk coefficient and risk index,it can be known that this element has a super high ecological risk and is the main element of soil heavy metal pollution.

关 键 词：土壤 重金属浓度 污染特征 潜在生态风险指数 单因子指数法 重金属元素 

分 类 号：X53[环境科学与工程—环境工程]