农业环境科学学报2017，Vol.36Issue(6)：1044-1052,9.DOI:10.11654/jaes.2017-0075
不同木薯品种对重金属Cu Zn Cd累积差异及健康风险分析
Accumulation of heavy metals copper, zinc, and cadmium in cassava varieties and the associated human health risk
摘要
Abstract
Cassava(Manihot esculenta)has great potential for bioremediation of contaminated soil and utilization as an energy plant. Three cassava varieties(SC5, SC205, and SC8)were selected to investigate the differences in their accumulation of heavy metals copper(Cu), zinc (Zn), and cadmium(Cd)and to perform human health risk assessments through field plot experiments. The results showed that SC8 had the highest yield among the three cassava cultivars, at up to 53125 kg·hm-2 at the sample site Ningxi. The concentrations of Cu, Zn, and Cd in the three cassava varieties were all ranked in the order stem>leaf>root. The total enrichment coefficient of SC8 was much higher than that of the other two cassava cultivars, with Cu of 4.30, Zn of 2.86, and Cd of 2.80. It may be important to promote planting of cassava variety SC8 in moderately polluted soil. Furthermore, the result of target hazard quotient(THQ) analyses showed that adults and children who consume cassava tubers and roots from the Ningxi plots had potential health risks due to heavy metal contamination.关键词
木薯品种/土壤重金属/Cu/Zn/Cd/植物修复/健康风险分析Key words
cassava(Manihot esculenta)cultivar/soil heavy metal/copper/zinc/cadmium/phytoremediation/human health risk analysis分类
资源环境引用本文复制引用
曾露苹,秦俊豪,董淑玉,张润涵,黎华寿..不同木薯品种对重金属Cu Zn Cd累积差异及健康风险分析[J].农业环境科学学报,2017,36(6):1044-1052,9.基金项目
国家高技术研究(863)项目(2013AA102402) （863）
广东省科技计划项目(2014A030304036,2015B090903077) The National High Technology Research and Development Program of China(2013AA102402) （2014A030304036,2015B090903077）
The Science and Technology Planning of Guangdong Province,China(2014A030304036,2015B090903077) （2014A030304036,2015B090903077）
