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应用生态学报 ›› 2001, Vol. ›› Issue (4): 513-516.

• 研究论文 • 上一篇    下一篇

南极地区苔藓地衣植物的地球化学元素营养富集特征

李小梅1, 赵俊琳1, 孙立广2   

  1. 1. 北京师范大学环境科学研究所, 北京 100875;
    2. 中国科技大学极地研究室, 合肥 230026
  • 收稿日期:2000-07-17 修回日期:2000-11-13 出版日期:2001-07-25
  • 通讯作者: 李小梅,女,1969年生,硕士,讲师,主要从事极地环境地球化学特征与环境变化研究,发表论文5篇.Tel:010-62206534,E-mail:lixiaomei(@263.net
  • 基金资助:
    国家“九五”重点科技攻关项目(989270104)

Nourishing characteristic of geochemical elements in Antarctic mosses and lichens

LI Xiaomei1, ZHAO Junlin1, SUN Liguang2   

  1. 1. Institute of Environmental Sciences, Beijing Normal University, Beijing 100875;
    2. Polar Research Laboratory, University of Science & Technology of China, Hefei 230026
  • Received:2000-07-17 Revised:2000-11-13 Online:2001-07-25

摘要: 研究南极苔藓地衣中地球化学元素的营养富集特征,发现K、Ca为苔藓地衣中最活跃元素,主要以主动吸收的方式累积于苔藓地衣植物中;P极易富集在地衣的藻层,参与藻类的有机合成过程;苔藓容易富集环境中的S;Al、Si以被动吸收的方式累积于地衣中,同时Fe、Mg以被动吸收的方式累积于苔藓体内.根据元素的含量和营养作用,研究认为K、Ca为苔藓地衣的大量无机营养元素,S、P为苔藓地衣的中等营养元素,Al、Si为苔藓地衣的环境累积元素.

Abstract: Studies on the nourishing properties of geochemical elements in Antarctic mosses and lichens show that potassium and calcium were the most active elements,while phosphorous was accumulated in the middle part of lichen cells,and participated in organic synthesis.Mosses accumulated sulphur stressly,but took in iron and magnesium negatively.Aluminum and silicon were absorbed passively by lichens.It is concluded that potassium and calcium were the important nutrient elements for the growth of mosses and lichens,sulphur and phosphorous were the middle significant nutrients,while aluminum and silicon were the passively accumulated elements.

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