土壤重金属有效态单级提取方法研究  

Study on Single-stage Extraction Method to Heavy Metals Effective State in Soil

作　　者：李利梅 成永霞 袁远[2] 马丽 LI Li-mei;CHENG Yong-xia;YUAN Yuan(Key Laboratory for Monitor and Remediation of Heavy Metal Polluted Soils of Henan Province,Jiyuan,Henan 459000;College of Forestry,Henan Agricultural University,Zhengzhou,Henan 450002)

机构地区：[1]河南省土壤重金属污染监测与修复重点实验室,河南济源459000 [2]河南农业大学林学院,河南郑州450002

出　　处：《安徽农业科学》2020年第12期13-15,19,共4页Journal of Anhui Agricultural Sciences

基　　金：河南省土壤重金属污染监测与修复重点实验室开放基金项目(2017207)。

摘　　要：土壤重金属污染问题日益凸显。重金属元素迁移和积累行为的相关研究表明,相比重金属总量,有效态重金属更能准确反映重金属对植物的毒性作用。目前,土壤有效态重金属提取所用提取剂所反映的植物效应有较大差异,且对不同类型土壤或元素的萃取通用性较差。针对以上问题,系统综述了近年来土壤有效态重金属多元素同步单级提取方法,比较了各类提取方法的特点及其适用性,总结了影响土壤重金属有效性的环境因素,以期为筛选合适的萃取剂准确评价土壤重金属污染状况提供重要参考依据。The heavy metals pollution of soil is increasingly prominent.Relevant research on the migration and accumulation behavior of heavy metal elements shows that,compared with the total amount of heavy metals,the effective heavy metals can more accurately reflect the toxic effects of heavy metals on plants.At present,the plant effects reflected by the extractants used in the extraction of available heavy metals in the soil are quite different,and the extraction versatility for different types of soil or elements is poor.In view of the above problems,a systematic review of the multi-element simultaneous single-stage extraction method of soil available heavy metals in recent years was systematically compared,and the characteristics and applicability of various extraction methods were compared.The extractant provides an important reference for accurately evaluating the pollution status of heavy metals in the soil.

关 键 词：重金属生物毒性 提取剂 植物有效性 影响因素 适用性 

分 类 号：X833[环境科学与工程—环境工程]