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

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，Ｐ，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Ｂ，Ｃ，Ｆ，Ｖ，Ｔ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％。

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

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 V contents of them are higher than those of higher plants, while Pb and P contents 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/K is 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%.