Research progress on the environmental risk assessment and remediation technologies of heavy metal pollution in agricultural soil  

作　　者：Xurui Mai Jing Tang Juexuan Tang Xinyue Zhu Zhenhao Yang Xi Liu Xiaojie Zhuang Guang Feng Lin Tang 

机构地区：[1]College of Environmental Science and Engineering,Hunan University,Changsha 410082,China [2]Key Laboratory of Environmental Biology and Pollution Control(Hunan University),Ministry of Education,Changsha 410082,China [3]Power China Zhongnan Engineering Corporation Limited,Changsha 410014,China

出　　处：《Journal of Environmental Sciences》2025年第3期1-20,共20页环境科学学报(英文版)

基　　金：supported by the National Natural Science Foundation of China(Nos.52100184,and U22A20617).

摘　　要：Controlling heavy metal pollution in agricultural soil has been a significant challenge.These heavy metals seriously threaten the surrounding ecological environment and human health.The effective assessment and remediation of heavy metals in agricultural soils are crucial.These two aspects support each other,forming a close and complete decisionmaking chain.Therefore,this review systematically summarizes the distribution characteristics of soil heavy metal pollution,the correlation between soil and crop heavy metal contents,the presence pattern and migration and transformation mode of heavy metals in the soil-crop system.The advantages and disadvantages of the risk evaluation tools and models of heavy metal pollution in farmland are further outlined,which provides important guidance for an in-depth understanding of the characteristics of heavymetal pollution in farmland soils and the assessment of the environmental risk.Soil remediation strategies involve multiple physical,chemical,biological and even combined technologies,and this paper compares the potential and effect of the above current remediation technologies in heavy metal polluted farmland soils.Finally,the main problems and possible research directions of future heavy metal risk assessment and remediation technologies in agricultural soils are prospected.This review provides new ideas for effective assessment and selection of remediation technologies based on the characterization of soil heavy metals.

关 键 词：Source Migration transformation Risk assessment REMEDIATION Heavy metals Agricultural soils 

分 类 号：X53[环境科学与工程—环境工程]