根-土界面镉的生态化学行为与毒理效应研究进展

应用生态学报

根-土界面镉的生态化学行为与毒理效应研究进展

金彩霞^1,2 周启星¹ 孙瑞莲^1,2 任丽萍¹

¹中国科学院沈阳应用生态研究所陆地生态过程重点实验室，沈阳 110016；²中国科学院研究生院，北京 100039

收稿日期:2004-08-31 修回日期:2005-01-21 出版日期:2005-08-18

Research advances on eco?chemical behaviors and toxicological effects of cadmium in root－soil interface

JIN Caixia ^1,2,ZHOU Qixing¹,SUN Ruilian^1,2,REN Liping ¹

¹Key Laboratory of Terrestrial Ecological Process,Institute of Applied Ecology, Chinese Academy of Sciences,Shenyang 110016, China;²Graduate School of Chinese Academy of Sciences,Beijing 100039, China

Received:2004-08-31 Revised:2005-01-21 Online:2005-08-18

摘要/Abstract

摘要： 根?土界面是物质交换最频繁的特殊微型生态区域，其pH、Eh和根系分泌物是决定这个微域环境性质变化的三大重要因素，其对镉（Cd）等重金属的吸收、转化和迁移等生态化学行为及毒理效应起着决定性的作用.本文就十几年来有关Cd在根?土界面pH、Eh和根系分泌物变化影响下的生态化学行为、根?土界面Cd的生态毒理效应（包括微生物生态毒理效应和酶的生态毒理作用）研究进展进行了综合论述，指出了目前研究中存在的不足，并就今后需要进一步解决的科学问题提出了建议.

Abstract: Many active substances such as organic acids and enzymes excreted by living plant roots could induce a great difference of Eh and pH values between root-soil interface and non?rhizosphere soil,forming a special root-soil interface miniature environment.As a mini-type ecological area with most frequent exchanges of substances,root-soil interface plays a crucial role in their absorption,transformation,migration and eco-toxicological effects.In this paper,the eco-chemical behaviors of Cd in root-soil interface affected by the change of pH,Eh and root secretion,and its eco-toxicological effects on microorganisms and enzymes in root-soil interface were reviewed,based on the related research advances in recent decade.The shortages in relevant fields were pointed out,and the scientific problems to be researched in the future were suggested.

金彩霞^1,2 周启星¹ 孙瑞莲^1,2 任丽萍¹. 根-土界面镉的生态化学行为与毒理效应研究进展[J]. 应用生态学报.

JIN Caixia ^1,2,ZHOU Qixing¹,SUN Ruilian^1,2,REN Liping ¹. Research advances on eco?chemical behaviors and toxicological effects of cadmium in root－soil interface[J]. Chinese Journal of Applied Ecology.