期刊论文

中文

湖南农业科学

1006-060X

2018

11

33-37

10.16498/j.cnki.hnnykx.2018.011.010

16A095:湖南省教育厅重点项目 2016YFD0300905-03:国家重点研发计划

本校为第一机构

根据前期研究可知苋菜具有吸收土壤重金属污染物的作用,为此选择8个不同苋菜品种为试验对象,以湖南省典型耕作地为试验土壤,研究苋菜对土壤重金属的吸收作用。结果表明:（1）苋菜对耕作地中的多种重金属均有一定吸收作用,从而使土壤中重金属含量下降,下降率大小依次为:锰（Mn）>镉（Cd）>砷（As）>铅（Pb）>汞（Hg）>铬（Cr）;（2）连续2 a定期种植红圆叶苋菜后的土壤重金属含量

According to previous studies,amaranth can absorb heavy metal pollutants in soil.For this reason,eight different amaranth varieties were selected as experimental objects,and typical cultivated land in Hunan Province was used as experimental soil to study the absorption of heavy metals in soil by amaranth.The results are as follows:(1)Amaranth can absorb many kinds of heavy metals in cultivated land to a certain extent,so that the content of heavy metals in soil decreases.The descending rates are manganese(Mn)>cadmium(Cd)>arsenic(As)>lead(Pb)>mercury(Hg)>chromium(Cr);(2)the contents of heavy me...