CAJ | 학술논문

为探明广西大新铅锌矿区某屯耕地土壤重金属污染状况，采集了该屯21个土壤样品，采用 IC P-A ES法分析了其中Cd、Cu、Pb、Zn、Mn、Cr六种重金属的含量。采用单因子污染指数和综合污染指数法对研究区土壤进行了评价。为矿区环境保护、农业生产提供参考。结果表明，耕地土中Zn、Cu、和Cr超过桂西南土壤背景值， Pb、Zn、M n、Cd超过《国家土壤环境质量标准》（GB156182-1995）二级标准限值，整体呈现出以Cd、Pb、Zn为主， Cu、Mn、Cr次之的严重复合污染特征。不同土地利用类型土壤内综合污染程度排序为菜地＞弃耕地＞玉米地，污染级别都达到重度污染。
위탐명엄서대신연자광구모둔경지토양중금속오염상황，채집료해둔21개토양양품，채용 IC P-A ES법분석료기중Cd、Cu、Pb、Zn、Mn、Cr륙충중금속적함량。채용단인자오염지수화종합오염지수법대연구구토양진행료평개。위광구배경보호、농업생산제공삼고。결과표명，경지토중Zn、Cu、화Cr초과계서남토양배경치， Pb、Zn、M n、Cd초과《국가토양배경질량표준》（GB156182-1995）이급표준한치，정체정현출이Cd、Pb、Zn위주， Cu、Mn、Cr차지적엄중복합오염특정。불동토지이용류형토양내종합오염정도배서위채지＞기경지＞옥미지，오염급별도체도중도오염。
To determine the level of heavy metals pollution in soils from a certain village of Daxin lead zinc mining area in Guangxi ,21 soil samples were collected from this village .ICP-AES was used to analyze heavy metals elements including Cd ,Cu ,Pb ,Zn ,Mn and Cr of these samples .The single factor pollution index and the comprehensive pollution index were used to evaluate the soils in the study area .The result may provide a reference for the environment protection and agricultural produc-tion in this mining area .Results show that Zn ,Cu and Cr concentrations in arable soil are higher than the background values of soil in southwest of Guangxi and Pb ,Zn ,Mn and Cd concentrations in arable soil are higher than that of the Second Grade for Environmental Quality Standard for Soils ( GB15618 , 1995) .As a whole ,it shows the serious combined pollution characteristics of Cd ,Pb ,Zn ,and Cu ,Mn , Cr follow .The order of the comprehensive pollution degree of soil of different land use types is vegeta-ble plots>abandoned lands>corn fields .The soil samples are all heavily contaminated .