CAJ | 학술논문

采集西安市S 107省道路边菜地土壤样品，利用XRF法测定土壤样品中重金属的含量，研究路边土壤中重金属的含量变化特征及污染水平。研究结果显示，路边菜地土壤中存在着Cu、Pb、Zn、Cr、Mn、Ni和V的累积现象。土壤重金属含量空间变化分析表明，防护林能够有效限制扩散能力强的Pb和Cr的传播范围，可阻挡通过大颗粒污染物扩散的Cu、Zn、Mn、Ni、V和As进入菜地土壤。单项污染指数评价结果显示，菜地土壤中Cu、Pb、Zn、Cr、Mn、Ni、V单因子污染指数均在1．0～1．7范围内，都达到了轻度污染，其中Pb、Cr污染指数能达到1．6和1．7，污染相对较重。路边菜地土壤重金属的综合污染指数分别为1．9和1．8，污染水平为轻度。
채집서안시S 107성도로변채지토양양품，이용XRF법측정토양양품중중금속적함량，연구로변토양중중금속적함량변화특정급오염수평。연구결과현시，로변채지토양중존재착Cu、Pb、Zn、Cr、Mn、Ni화V적루적현상。토양중금속함량공간변화분석표명，방호림능구유효한제확산능력강적Pb화Cr적전파범위，가조당통과대과립오염물확산적Cu、Zn、Mn、Ni、V화As진입채지토양。단항오염지수평개결과현시，채지토양중Cu、Pb、Zn、Cr、Mn、Ni、V단인자오염지수균재1．0～1．7범위내，도체도료경도오염，기중Pb、Cr오염지수능체도1．6화1．7，오염상대교중。로변채지토양중금속적종합오염지수분별위1．9화1．8，오염수평위경도。
The soil samples were collected from the vegetable field nearby S107 provincial highway of Xi’an City. The content variation and pollution level of heavy metal in these soil samples were studied by measuring the heavy metal content using the XRF method .The results indicated that:The Cu,Pb,Zn,Cr,Mn,Ni and V were accumulated in these studied soils .The spatial variation analysis of heavy metals in these soils demonstrated that the shelter forest can be effectively limited the diffusion ability and transmission range of Pb and Cr,and prevented the Cu,Zn,Mn,Ni,V and As spreading into the vegetable soils by the large particles pollutants .The assessment results of single pollution index shown that Cu,Pb,Zn,Cr,Mn,Ni and V were in the range of 1 .0 to 1 .7,total presented light pollution .Among them,the Pb and Cr reached 1 .6 and 1 .7,was relative heavy pollution .The integrated pollution index of heavy metals in these soil was 1 .9 and 1 .8,respectively .The pollution level was light .