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生态学杂志 ›› 2004, Vol. ›› Issue (2): 92-97.

• 博士论坛 • 上一篇    下一篇

镉与磷、锌、铁、钙等元素的交互作用及其生态学效应

黄益宗   

  1. 中国科学院生态环境研究中心, 北京, 100085
  • 收稿日期:2003-06-04 修回日期:2003-06-26 出版日期:2004-04-10
  • 通讯作者: 黄益宗,男,1970年生,广西南宁,壮族,博士,助研.研究方向为农林生态环境.发表论文25篇.
  • 基金资助:
    国家自然科学基金资助项目(40201050和40001023)

Interactions between cadmium and phosphorus, zinc, iron, calcium and their ecological effects

HUANG Yizong   

  1. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
  • Received:2003-06-04 Revised:2003-06-26 Online:2004-04-10

摘要: 镉是动物和植物的非必需元素,也是毒性最大的重金属之一。环境镉污染对植物、动物和人体均产生毒害作用。镉与许多生命必需营养元素存在着交互影响关系,相互影响着对方的功能发挥。镉污染胁迫可影响动植物和人体对营养元素的吸收,相反补充营养元素可减轻镉的毒害。但是,由于每个元素的性质和功能不一样,因此不同元素与镉的交互作用存在着差异性。镉与营养元素的交互作用研究可为生物镉污染防治提供科学依据。

关键词: 禾本科植物, 联合固氮, 根际固氮菌, 内生固氮菌

Abstract: Cadmium is one of the most toxic heavy metals and is not an essential nutrient element for plant, animal and human being. There are mutual impacts between cadmium and many nutrient elements. The uptake of nutrient elements will be inhibited by cadmium contamination. On the contrary, adding appropriate nutrient elements will lower the toxicity of cadmium. Due to different character and function for each element, interactions between elements and cadmium express the otherness. Research for mutual impacts between cadmium and elements will provide scientific foundation for prevention of cadmium contamination.

Key words: Graminaceous plants, Associative nitrogen fixation, Rhizosphere diazotrophs, Endophytic diazotrophs

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