K、Na、Ca、Mg4种元素在疏叶骆驼刺体内含量分布特点的研究  

A STUDY ON THE CHARACTERS OF CONTENT AND DISTRIBUTION OF K,Na, Ca, Mg ELEMENTS IN ALHAGI SPARSIFOLIA

作　　者：金启宏 

机构地区：[1]中国科学院植物研究所

出　　处：《植物生态学报》1996年第1期80-84,共5页Chinese Journal of Plant Ecology

基　　金：国家自然科学基金

摘　　要：此项工作在新疆平原荒漠区盐化草甸带进行。研究结果显示出Ｋ、Ｎａ、Ｃａ、Ｍｇ４种元素在植物体内不同器官的含量分布特点和各个器官中不同元素间的含量关系。同时表明这４种元素在植物体不同器官中具有不同的作用。对于Ｋ、Ｎａ元素，地上部器官尤其叶片中含量水平反映出器官具有较强的留Ｋ排Ｎａ的选择性元素的分配机制。The contents and the distribution features of K, Na, Ca, Mg elements in different parts of Alhagi sparsifolia in a saline meadow in the desert region of Xinjiang plain were measured, their interrelations were analyzed.The results showed that these elements had different functions in different organs of the plant. The contents of K and Na in the aboveground part,especially in the leaves, indicated that the species had mechanisms to absorb potassium and Sodium selectively.

关 键 词：疏叶骆驼刺 草甸 元素含量 钾 钠 钙 镁 

分 类 号：Q948.158[生物学—植物学]