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应用生态学报 ›› 1995, Vol. 6 ›› Issue (2): 143-148.

• 研究论文 • 上一篇    下一篇

喀喇昆仑、昆仑山地区植物元素含量的区域分异和数量分析

孔令韶, 李渤生, 郭柯, 马茂华   

  1. 中国科学院植物研究所, 北京 100044
  • 收稿日期:1994-03-14 修回日期:1994-11-23 出版日期:1995-04-25 发布日期:1995-04-25
  • 基金资助:

    国家自然科学基金

Regional differeutiation and its quantitative analysis of plant element contents in Karakorum and Kunlun mountainous regions

Kong Lingshao, Li Bosheng, Guo Ke, Ma Maohua   

  1. Institute of Botany, Academia Sinica, Beijing 100044
  • Received:1994-03-14 Revised:1994-11-23 Online:1995-04-25 Published:1995-04-25

摘要: 对喀喇昆仑、昆仑山地区87种植物21个元素含量及区域分异的研究表明,Ca、Cr、Cd、Fe、V含量比高等植物含量偏高,Ph、P的含量偏低。同种植物在不同地点元素含量有差异。盐柴荒漠植物中Na、K、Mg、P含量较高;高山草甸、冰缘植被植物Ba、Ca、Fe、V、Ti含量较高。各植被类型植物元素含量Na/K差异最大,Ca/Mg较小,Fe/Al差异最小。其变异系数分别为153.5、20.5和15.9.%

关键词: 喀喇昆仑和昆仑山, 植物元素含量, 区域分异, 耦合工艺, 微生物降解, 藻毒素, 天然有机物

Abstract: Studies on 21 elements contents of 87 plant species and their regional differentiation inKarakorum and Kunlun mountainous regions show that the Ca, Cr, Cd, Fe and Vcontents of them are higher than those of higher plants, while Pb and Pcontents are lower.The element contents of same plant species on various sites are different.Halophytic vegetations on desert have a higher content of Na, K, Mg and P, and the plants on alpinemeadow and glacial fringe have a higher content of Ba, Ca, Fe, V and Ti.For variousvegetation types, The variation of Na/Kis maximum, that of Ca/Mg is less, and that ofFe/Al is minimum.Their variation coefficients are respectively 153.5, 20.5 and 15.9%.

Key words: Karakorum and Kunlun Mountains, Element content in plant, Regional differentiation, microbial degradation, cyanobacterial toxin, natural organic matter., coupling process