保定市郊污灌区土壤重金属潜在生态风险评价OA
Assessment of Potential Ecological Risk of Soil Heavy Metals in Sewage Irrigated Area of Baoding Suburban
以保定市郊污灌区为研究对象,采用潜在生态风险指数法对污灌区土壤6种重金属元素进行单因子和复合生态风险评价.结果表明,污灌区11个采样点的Cd平均潜在风险系数为77.9,达到中度生态危害程度,其余元素均未达到轻度生态危害的上限标准,6种重金属平均潜在生态风险指数依次为Cd>Ph>Cu>Zn>Cr>Ni.在6种重金属元素中,Cd元素对生态风险的贡献率最高,是构成潜在生态风险的主要因子.另外,污灌区个别样点的土壤重金属综合…查看全部>>
The ecological risks of soil heavy metals in the sewage irrigated area of Baoding suburban were discussed with the method of single and compound factor potential ecological risk index. The results showed that the soils had serious ecological risks of Cd with the single ecological risk index of six elements in sample points of irrigation area, the risk index was 77.9 ,and slight risks of Cu, Zn ,Cr,Ni and Pb with the index were less than Cd. The risk order of…查看全部>>
刘燕玲;刘树庆;薛占军;严永路;侯冬利
河北农业大学资源与环境科学学院,河北,保定,071001河北农业大学资源与环境科学学院,河北,保定,071001河北农业大学资源与环境科学学院,河北,保定,071001河北省环境监测中心,河北,石家庄,050051河北省环境监测中心,河北,石家庄,050051
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污灌区土壤重金属潜在生态风险评价
Sewage irrigated area Soil heavy metal Assessment of potential ecological risk
《安徽农业科学》 2011 (17)
10330-10332,3
国家科技支撑计划子课题项目(2008BAJ08B13-07).
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