云南师范大学学报（自然科学版）2025，Vol.45Issue(4)：43-49,7.DOI:10.7699/j.ynnu.ns-2025-043
镉污染土壤低富集十字花科蔬菜筛选研究
Study on the Screening of Low-cadmium-accumulating Cruciferous Vegetables in Cadmium-contaminated Soil
摘要
Abstract
The objective of this study was to screen low-Cadmium(Cd)-accumulating cruciferous vege-tables suitable for planting in Cd-contaminated farmland.Four cruciferous vegetables,namely Brassica campestris,Brassica rapa L.ssp.pekinensis,Brassica campestris ssp.chinensis,and Brassica oleracea,were selected.Through a field planting experiment,the Cd content in different parts of various vegeta-bles,as well as the Cd accumulation and translocation,were determined,and their health risks were e-valuated.The results showed that there were significant differences in the ability of different crucifer-ous vegetable varieties to absorb,accumulate,and translocate Cd.When the Cd concentration in the farmland soil was approximately 2.5 mg·kg-1,the Cd content and bioaccumulation coefficient in both the aboveground and underground parts of Brassica campestris were significantly higher than those of the other three vegetables(P＜0.05),presenting Brassica campestris＞Brassica rapa L.ssp.pekin-ensis＞Brassica campestris ssp.chinensis＞Brassica oleracea.Meanwhile,the health risk assessment indicated that both the health risk index and the target hazard quotient of Brassica campestris were greater than 1,suggesting that Brassica campestris planted in farmland contaminated with low-concen-tration Cd poses a relatively high risk to human health.This study demonstrated that,considering food safety,Brassica oleracea has a relatively higher planting suitability in farmland contaminated with low-concentration Cd.关键词
农田镉污染/十字花科蔬菜/筛选/健康风险评估Key words
Farmland cadmium pollution/Cruciferous vegetables/Screening/Health risk assessment分类
资源环境引用本文复制引用
史应仙,黄晶心,宋洪川,刘伟,刘章贵,李丹丹,黄四华,赵应芸,岳志强,曾维庆,徐兰兰..镉污染土壤低富集十字花科蔬菜筛选研究[J].云南师范大学学报（自然科学版）,2025,45(4):43-49,7.基金项目
云南省应用基础研究计划资助项目(202301AT070077) （202301AT070077）
云南省国际科技特派员资助项目(202403AK140052). （202403AK140052）
