AMF添加与植物组合方式对黑麦草生长和铀富集效果的研究  

Research on Effects of AMF Addition and Plants Combinations on Growth and Uranium Enrichment of Lolium perenne

作　　者：孙丽欣 杨娟 陈秋华 张优倩 张雨昕 冯锦波 贾美玉 SUN Li-xin;YANG Juan;CHEN Qiu-hua;ZHANG You-qian;ZHANG Yu-xi;FENG Jin-bo;JIAMei-yu(School of Water Resources and Environmental Engineering,East China University of Technology,Nanchang 330013,China)

机构地区：[1]东华理工大学水资源与环境工程学院,南昌330013

出　　处：《有色金属（冶炼部分）》2022年第1期108-117,共10页Nonferrous Metals（Extractive Metallurgy)

基　　金：2021年江西省大学生创新创业训练计划(202110405024);东华理工大学博士科研启动基金项目(理工类)(DHBK2019103)。

摘　　要：植物-微生物联合修复因其绿色经济的特点已成为解决土壤铀污染的主要方法之一。选取小白菜(Brassica chinensis)、紫花苜蓿(Medicago sativa)与黑麦草(Lolium perenne)作为供试植物,构建植物组合,以黑麦草为研究中心,在是否添加丛枝菌根真菌(arbuscular mycorrhizal fungi,AMF),两种铀浓度土壤条件下探究不同植物组合方式对黑麦草生长和铀元素富集效果的影响。结果表明,植物组合增加了黑麦草地上部分生长量的投入,紫花苜蓿-黑麦草-小白菜组合以及紫花苜蓿-黑麦草组合促进黑麦草地上生长,添加AMF提高了单独种植的黑麦草对铀元素的富集能力,促进了植物组合种植条件下黑麦草的生物量积累。植物组合以及植物-AMF的联合是生物修复未来的研究方向,本研究可为探索植物组合修复铀污染的土壤提供理论和实践参考。Plant-microbial combined remediation become one of the main methods of solving soil uranium pollution due to its characteristics of green and economy.Taking Lolium perenne as target plant,and building plant combinations among Brassica chinensis,Medicago sativa,and Lolium perenne,to explore effects of different plant combination methods on growth and uranium enrichment of Lolium perenne under experimental conditions of arbuscular mycorrhizal fungi(AMF)addition and soils with two uranium concentration.The results show that combination of plants increases growth input on aboveground part of Lolium perenne,combinations of three plants and combination of Medicago sativa-Lolium perenne promote the aboveground growth of Lolium perenne,adding AMF improves uranium enrichment ability of Lolium perenne under condition of only Lolium perenne grown,promotes biomass accumulation of Lolium perenne under plant combination conditions.Plant combination and plant-AMF combination are the future research directions of bioremediation.This study provides theoretical and practical references for exploring remediation of uranium-contaminated soil by plant combinations.

关 键 词：铀污染 黑麦草 植物组合方式 丛枝菌根真菌 

分 类 号：X53[环境科学与工程—环境工程]