CAJ | 학술논문

通过对广元市苍溪县白鹤乡表层土壤重金属元素As、Cd、Cr、Cu、Hg、Ni、Pb和Zn的调查分析，并采用单因子污染指数法和综合污染指数法对当地土壤重金属环境质量进行了评价。结果表明，研究区符合土壤质量二级标准，土壤质量较好属清洁，符合国家对种植农作物产品的基本要求。其中重金属污染因子中发现主要是Cd元素超过土壤质量一级标准但符合二级标准范围。究其超标原因有二：一是土壤母岩风化；二是人为活动的影响。
통과대엄원시창계현백학향표층토양중금속원소As、Cd、Cr、Cu、Hg、Ni、Pb화Zn적조사분석，병채용단인자오염지수법화종합오염지수법대당지토양중금속배경질량진행료평개。결과표명，연구구부합토양질량이급표준，토양질량교호속청길，부합국가대충식농작물산품적기본요구。기중중금속오염인자중발현주요시Cd원소초과토양질량일급표준단부합이급표준범위。구기초표원인유이：일시토양모암풍화；이시인위활동적영향。
According to the investigation of soil heavy metal contents,As,Cd,Cr,Cu,Hg,Ni,Pb and Zn, in Baihe villiage of Cangxi County, the environmental quality of these metal contents were evaluated by the methods of single pollution index and synthetic pollution index. The results have indicated that the soil environmental quality of the research district is according to the standard of Soil Environmental Quality Class Two, which means the soil quality is preferable and meets the basic requirements for crops. Among these factors, the main factor is the content of Cd, which is over the standard of Soil Environmental Quality Class One but below Class Two. There are two reasons found, the first one is caused by soil parent material and the second one is caused by human activities.