【摘要】 采用化学和数学分析方法对新疆杨不同部位(叶、枝、干、根)8个可溶性盐离子含量进行了研究。结果表明:(1)新疆杨中无CO32-存在;(2)新疆杨各部位各个生长时期阳离子中K+含量最大,Na+含量最小;阴离子中HCO3-含量最大;(3)新疆杨树体内的主导离子是Ca2+、HCO3-、Cl-;(4)新疆杨一年生枝、多年生枝、心材和边材的离子分布年内动态相似,叶和根有各自独特的特点。更多还原

【Abstract】 The eight soluble salt ions in different parts of Populus alba L.var.pyramidalis were analyzed with chemical methods and mathematical methods.The result showed （1）There was no CO₃^2-in any parts at any month;（2）In any parts at any month K⁺ content was the highest and Na⁺ content was the lowest in positive ions ;HCO₃^- content was the highest in negative ions;（3）The principal components of Populus alba L.var.pyramidalis was HCO₃^- ?Cl^- and Ca²⁺;（4）The dynamic regularity was similar in one year branches,many year branches,heartwood and sapwood ,leaves and roots had their own characters.更多还原