通辽市红干椒农田土壤重金属元素测量研究  

Heavy Metal Elements in Soil of Red Dried Pepper Farmland in Tongliao City

作　　者：李雪[1,2] 国大旺 张苏雅拉吐 LI Xue;GUO Da-wang;ZHANG Suyalatu(College of Mathematics and Physics,Inner Mongolia Minzu University,Tongliao 028043,China;Institute of Nuclear Physics,Inner Mongolia Minzu University,Tongliao 028043,China;College of Chemistry and Materials Science,Inner Mongolia Minzu University,Tongliao 028043,China)

机构地区：[1]内蒙古民族大学数理学院,内蒙古通辽028043 [2]内蒙古民族大学核物理研究所,内蒙古通辽028043 [3]内蒙古民族大学化学与材料学院,内蒙古通辽028043

出　　处：《内蒙古民族大学学报（自然科学版）》2023年第2期168-172,共5页Journal of Inner Mongolia Minzu University：Natural Sciences

基　　金：内蒙古自治区高等学校青年科技英才支持计划项目(NJYT23109);2022年度内蒙古自治区直属高校基本科研业务费研究项目。

摘　　要：通过样点布设和采集分析通辽市红干椒农田区土壤重金属元素,获得了Cd、Pb、Cr、Cu元素含量。利用地质累积指数法和污染负荷指数法研究了重金属污染情况,采用Hakanson指数模型进行了潜在生态风险评估。结果表明:红干椒农田土壤重金属含量均较内蒙古地区土壤重金属背景值低,也没有超出国内水平,达到土壤环境质量要求。对不同深度土壤样品重金属浓度分析发现,除了3号、4号Cd、Pb浓度和9号、10号Cd浓度外,其余0~20 cm土壤样品重金属浓度均高于20~40 cm土壤样品重金属浓度。对农田区和非农田区域土壤样品重金属含量分析发现,农业生产中使用农药化肥、污水灌溉对土壤重金属含量影响较少,尚未构成重金属污染。Through the layout of sample points and the collection and analysis of heavy metal elements in the soil of the red dry pepper farmland area of Tongliao City,the contents of Cd,Pb,Cr and Cu elements were ob⁃tained.The geological accumulation index method and pollution load index method were used to study the heavy metal pollution,and the Hakanson index model was used to carry out potential ecological risk assessment.The re⁃sults showed that the soil heavy metal content in red pepper farmland was lower than that in Inner Mongolia,and did not exceed the domestic level,which met the soil environmental quality requirements.The analysis of heavy metal concentrations in soil samples at different depths showed that except for the Cd and Pb concentrations of No.3 and No.4,and the Cd concentrations of No.9 and No.10,the heavy metal concentrations of the remaining 0~20 cm soil samples were higher than those of 20~40 cm soil samples.The analysis of heavy metal content of soil samples in farmland and non-farmland areas showed that the use of pesticides and fertilizers in agricultural production and sewage irrigation had less impact on the heavy metal content in the soil,and did not constitute heavy metal pollution.

关 键 词：农田土壤 重金属元素 风险评估 

分 类 号：S152[农业科学—土壤学] O57[农业科学—农业基础科学]