青藏高原不同草地类型苔藓植物化学元素特征

›› 2013, Vol. 21 ›› Issue (1): 65-72.

青藏高原不同草地类型苔藓植物化学元素特征

金艳霞^1,2, 周华坤¹, 赵新全¹, 陈哲^1,2, 姚步青¹, 付京晶^1,2, 温军^1,2, 李天才¹

1. 中国科学院西北高原生物研究所, 青海西宁 810001;
2. 中国科学院研究生院, 北京 100049

收稿日期:2012-08-15 修回日期:2012-10-30 出版日期:2013-02-15 发布日期:2013-02-27
通讯作者: 温军
作者简介:金艳霞(1986-),女,甘肃定西人,硕士研究生,主要从事高寒草地生态学研究,E-mail:jinyanx526@163.com;
基金资助:
国家重点基础研究发展计划(973计划)课题(2009CB421102);国家自然科学基金项目(41030105)(31172247);中科院战略性先导科技专项子课题(XDA05070202);国家科技支撑课题专题(2011BAC09B06-02)资助

Chemical Element Characteristics of Moss from Different Alpine Meadows of Qinghai-Tibet Plateau

JIN Yan-xia^1,2, ZHOU Hua-kun¹, ZHAO Xin-quan¹, CHEN Zhe^1,2, YAO Bu-qing¹, FU Jing-jing^1,2, WEN Jun^1,2, LI Tian-cai¹

1. Northwest Plateau Institute of Biology, Chinese Academy of Science, Xining, Qinghai Province 810001, China;
2. Graduate University of Chinese Academy of Sciences, Beijing 100049, China

Received:2012-08-15 Revised:2012-10-30 Online:2013-02-15 Published:2013-02-27

摘要/Abstract

摘要： 为探讨青藏高原地区苔藓植物对重金属元素的积累状况,在海北站和三江源站的灌丛及草甸采集苔藓植物样品,利用原子吸收光谱仪法(AAS)测定了这些苔藓植物体内19种化学元素的含量。结果表明:青藏高原海北和果洛的苔藓植物体内重金属元素Hg, Cd, Zn和Cr的含量不仅高于国内的贡嘎山原始森林地带,也高于国外的意大利、芬兰、挪威等地区;海北的沼泽化草甸和金露梅(Potentila fruticosa)灌丛草甸,以及果洛的嵩草(Kobresia humilis)草甸和金露梅灌丛草甸的苔藓植物中化学元素的积累有明显差异。如除了K元素外,Ca和Mg元素在海北草甸苔藓体内的含量略高于果洛草甸。此外,苔藓植物体内Cd-Co, Cd-Ni, Cu-Se等元素间存在显著正相关关系。

关键词: 苔藓植物, 青藏高原, 草甸, 化学元素含量

Abstract: In this study, moss samples were collected from the shrubs and meadows of Haibei station and 'Three-River Headwaters’ station to explore moss accumulation capacity of heavy metals on Qinghai-Tibet Plateau. Nineteen elements in these moss samples were analyzed by means of the Atomic Absorption Spectrometry. Results of statistical analysis showed that the enrichment concentration of heavy metal elements such as Hg, Cd, Zn, Cr was higher than samples from Gongga montain forests, especially higher than samples from similar areas of Italy, Finland, and Norway. The enrichment concentration of chemical elements had significant difference between alpine meadow of Potentila fruticosa in Haibei and Kobresia humilis in Guoluo. In addition, these results also showed that there were significant positive correlations between Cd and Co, Cd and Ni, Cu and Se in tested moss samples.

Key words: Mosses, Qinghai-Tibet Plateau, Alpine meadow, Chemical element concentration

中图分类号:

Q949.35
X171

金艳霞, 周华坤, 赵新全, 陈哲, 姚步青, 付京晶, 温军, 李天才. 青藏高原不同草地类型苔藓植物化学元素特征[J]. , 2013, 21(1): 65-72.

JIN Yan-xia, ZHOU Hua-kun, ZHAO Xin-quan, CHEN Zhe, YAO Bu-qing, FU Jing-jing, WEN Jun, LI Tian-cai. Chemical Element Characteristics of Moss from Different Alpine Meadows of Qinghai-Tibet Plateau[J]. , 2013, 21(1): 65-72.

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