期刊论文

Zeng, Q.

中文

环境工程学报

1673-9108

2015

9

5

2488-2494

(201009047):环境保护部公益性行业科研专项“重金属污染耕地农业利用风险控制技术研究” (农办财函[2014]28号):湖南重金属污染耕地修复及农作物种植结构调整试点项目

本校为第一且通讯机构

土壤重金属污染日益严重,植物修复作为一种环境友好型的技术越来越受到关注。选取种植在郴州重金属污染土壤地区的花生和油菜2种油料作物,研究了重金属在这2种油料作物各部位的分布情况,再利用2种有机溶剂(正己烷和石油醚)对果实进行索氏萃取,探讨油中重金属的残留情况。结果表明,花生和油菜对重金属有一定的耐性和积累能力,花生根、茎、叶对重金属Pb、Cu、Cd积累性较强,其中Cd在根、茎、叶中的富集系数都高于4,为土壤本底值的5?6倍。花生红皮则对Cu表现出较强的富集能力,富集系数为3.30,浓度达到了358.26 mg/kg;油菜中重金属Zn、Cu、Cd在各部位的分布为:叶>根>果荚>茎>籽,说明油菜叶对Zn、Cu、...

Phytoremediation, as an environmentally-friendly technology, has been more concerned due to the serious soil heavy metal pollution. The research focused on the heavy metals' content distribution in different parts of peanut and rapeseed, by choosing the above two crops which were planted in seriously polluted soils by heavy metals in Chenzhou, and analyzed the heavy metal residues in oil extracts by using two kinds of organic solvents (petroleum and N-hexane) to do soxhlet extraction to their fruits. The result showed that peanut and rapeseed b...