土壤中有机污染物的形态及植物可利用性  

The Residual Forms and Plant Availabilities of Organic Pollutants in Soils

作　　者：曾跃春[1] 高彦征[1] 凌婉婷[1] 李秋玲[1] 韩进[1] 

机构地区：[1]南京农业大学资源与环境科学学院,江苏南京210095

出　　处：《土壤通报》2009年第6期1479-1484,共6页Chinese Journal of Soil Science

基　　金：江苏省青年科技创新人才基金(BK2007580);国家自然科学基金(40701073);教育部新世纪优秀人才支持计划项目(NCET-06-0491);国际原子能机构项目(13862)资助

摘　　要：土壤中有机污染物的残留形态可分为可提取态残留和结合态残留,不同残留的植物毒性和可利用性差异很大,用污染物的总量指标很难准确地评价土壤有机污染的程度、风险和修复效果。根据国内外现有研究结果,着重介绍了土壤中有机污染物的不同残留形态及其转化作用,比较了可提取态残留和结合态残留植物可利用性的差异。展望了该领域仍待深化的方向。The forms of organic pollutant in soils could be fractionated into the extractable residue and bound residue. The toxicity and availability of these two fractions of organic contaminants differ greatly. It seems unreasonable to evaluate the environmental risk and remediation efficiency of organic pollutants basing on the single parameter of its total amounts in soils. In this paper, the residue and its fraetionations of organic pollutants as well as its transformation in soils were elucidated. The availabilities of the extractable residue and bound residue of organic chemicals in soils were compared. Concerns on the research in this field in future were elucidated.

关 键 词：有机污染物 残留形态 植物可利用性 土壤 

分 类 号：X131.3[环境科学与工程—环境科学]