一年生经济植物在红壤区镉污染农田安全生长种植研究  

Study on the Safe Growth of Annual Economic Plants in Cadmium-polluted Farmland in Red Soil Region

作　　者：章涛 周静 赵伟 李晓晖[1] 王玺洋 李亮 辛在军[1] 孙小艳[1] 金伟 ZHANG Tao;ZHOU Jing;ZHAO Wei;LI Xiaohui;WANG Xiyang;LI Liang;XIN Zaijun;SUN Xiaoyan;JIN Wei(Jiangxi Engineering and Technology Research Center of Eco-remediation of Heavy Metal Pollution,Institute of Microbiology,Jiangxi Academy of Sciences,330096,Nanchang,PRC;Agriculture Technology Extension Center of Nanchang,330025,Nanchang,PRC)

机构地区：[1]江西省重金属污染生态修复工程技术研究中心,江西省科学院微生物研究所,南昌330096 [2]南昌市农业技术推广中心,南昌330025

出　　处：《江西科学》2024年第4期820-825,共6页Jiangxi Science

基　　金：江西省杰出青年人才资助计划项目(20192BCB23026);江西省科学院包干制试点示范项目重大产业技术攻关专项项目(2022YSBG10005);江西省科学院“杰出青年学者”培养项目(2020-JCQN-02)。

摘　　要：针对中重度重金属镉污染耕地农产品种植风险问题,对紫苏、甘蓝菜、罗勒3种经济植物在4个土壤镉污染梯度(0.6、1.4、2.3、5 mg/kg)下的生长状况进行研究。结果表明,在不同镉污染浓度下,3种经济植物生长抑制情况存在显著差异,随着镉污染浓度升高,罗勒生物量受抑制呈极显著状态,紫苏生物量呈先增后降的趋势,而甘蓝菜生物量受镉污染胁迫影响相对较小。随着镉浓度增加,罗勒和紫苏叶绿素含量逐渐减少,甘蓝菜则表现为先增后降。此外,植物根系镉含量与土壤镉浓度成正比,是镉囤积的主要器官。利用植物镉吸收累积量评价植物富集镉能力,表现为甘蓝菜(5.65~27.81μg)>紫苏(2.81~6.87μg)>罗勒(2.03~4.88μg)。In view of the risk of planting agricultural products on moderately to heavily metal cadmi-um-polluted farmland,this study investigated the growth status of three economic plants-perilla,cabbage and basil under four soil cadmium pollution concentrations(0.6,1.4,2.3,5 mg·kg-1)was studied.The results show significant differences in the growth inhibition of the three economic plants under different concentrations of cadmium pollution.As cadmium concentration increases,the biomass of basil is significantly inhibited,the biomass of perilla displays an initial increase followed by a decrease,while the biomass of cabbage is relatively less affected by cadmium pollution stress.With the increase of cadmium concentration,the chlorophyll content of basil and perilla decreases gradually,while that of cabbage increases first and then decreases.In addition,the cadmium con-tent in plant roots is proportional to the cadmium concentration of soil,which are the main organ of cadmium accumulation.The cadmium accumulation capacity of plants is evaluated by the cumulative amount of cadmium absorption,which ranks as follows:cabbage(5.65~27.81μg)>perilla(2.81~6.87μg)>basil(2.03~4.88μg).

关 键 词：镉富集 土壤修复 罗勒 甘蓝菜 紫苏 

分 类 号：Q94[生物学—植物学]