贵州省册亨县土壤重金属镉、铬元素评价及化学特征

Evaluation and chemical characteristics of heavy metals cadmium and chromium in the soil of Ceheng County,Guizhou Province

由于土壤中重金属元素对农业发展影响较大,为此提出贵州省册亨县土壤重金属镉、铬元素评价及化学特征研究。通过野外工作,样品分析测试,成果分析得出,贵州省册亨县土壤重金属镉元素含量主要以一级为主,全区土壤少有铬元素超标,土壤中铬元素主要等级为一级;册亨县土壤中镉、铬元素化学特征表现为具有较强的变异性,其中镉元素变化范围为0.04mg/kg^18.2mg/kg,铬元素变化范围为31.0mg/kg^900.0mg/kg。

Because heavy metal elements in the soil have a greater impact on agricultural development,the assessment and chemical characteristics of heavy metal cadmium and chromium in the soil of Ceheng County,Guizhou Province were proposed.Through field work,sample analysis and test results analysis,it is concluded that the content of heavy metal cadmium in the soil of Ceheng County,Guizhou Province is mainly first-class,and there are few chromium elements in the soil exceeding the standard,and the main grade of chromium in the soil is first-class;The chemical characteristics of cadmium and chromium in the soil of Hengxian County showed strong variability.The cadmium ranged from 0.04mg/kg^18.2mg/kg,and the chromium ranged from 31.0mg/kg^900.0mg/kg.