极地研究

极地研究 ›› 2001, Vol. 13 ›› Issue (1): 50-56.

• 目次 • 上一篇    下一篇

南极乔治王岛六种苔藓植物的X荧光分析

沈显生;孙立广;尹雪斌;张莉;康士秀;吴自勤;黄宇营;巨新   

  • 出版日期:2001-03-30 发布日期:2001-03-30

X-RAY FLUORESCENT ANALYSIS OF THE 6 SPECIES OF BRYOPHYTE IN THE KING GEORGE ISLAND, ANTARCTICA

  • Online:2001-03-30 Published:2001-03-30

PDF (PC)

1616

摘要：

在无标样条件下 ,我们利用微束 X荧光分析法对南极乔治王岛的 6种苔藓植物的叶和茎进行重元素分析。它们是 :Andreaea regularis,Bryum muehlenbeckii,Drepanocladus uncinatus,Brachythecium subpilosum,Tortula saxiola,Ditrichum austro- georgicum。研究结果发现 ,不同苔藓植物对各种不同重元素的吸收能力不同 ,即使是同一种植物 ,叶和茎中的重元素成分也有差异。在 6种苔藓中 ,Andreaea regularis体内的重元素种类最少 ,但其对 Fe有较强的吸收。由于南极环境条件优越 ,在苔藓植物体内 ,尚未发现大量有毒重金属元素的存在

关键词: 南极;苔藓;重元素;X荧光分析

Abstract:

Without a standard specimen, we analysed the heavy element content of 6 moss species in the King George Island of Antarctica by XRF. They are Andreaea regularis, Bryum muehlenbeckii, Drepanocladus uncinatus, Brachythecium subpilosum, Tortula saxiola and Ditrichum austro georgicum . We found that various plants absorbed varied heavy elements. Even if the same moss, there are the different elements in leaves and stems. Andreaea regularis is possessed of the fewest heavy element varieties in 6 species of bryophyte, but it absorbs Fe more powerfully. Owing to superior environment, we didn't find a lot of poisonous heavy metal elements in bryophyte of Antarctica.