不同黄化程度俄罗斯杨水力结构特征研究  

Hydraulic Architecture Characteristics of Populus russkii Under Different Yellowing Degree

作　　者：古丽娜尔·巴合提别克 阿勒合斯·加尔得木拉提 韩卫民 王梅 Gulinaer?Bahetibieke;Alehesi?Jiaerdemulati;HAN Wei-min;WANG Mei(Agriculture College,Shihezi University,Shihezi 832000,China;不详)

机构地区：[1]新疆石河子大学农学院,新疆石河子832000 [2]不详

出　　处：《黑龙江农业科学》2020年第4期74-78,共5页Heilongjiang Agricultural Sciences

基　　金：国家自然基金(31660194)。

摘　　要：为促进西北地区造林的适应性,本文设置了2种不同黄化程度和正常生长的杨树共3种处理,每一处理12个重复,采用“冲洗法”对俄罗斯杨枝条的水力结构相关参数进行测定。结果表明:俄罗斯杨的导水率(Kh)、比导率(Ks)、叶比导率(LSC)和胡伯尔值(Hv)都与茎段直径呈明显的正相关。随着黄化程度的增大,导水率、比导率、叶比导率值减小,胡伯尔值变化不明显。随着黄化程度的增大,杨树的栓塞值(PLC)也相应增大。In order to promote the adaptability of afforestation in Northwest China,In this article,hydraulic architecture characteristical parameters of Populus russkii which is the important tree species was measured and analyzed by a“flushing method”with 3 treatments(two treatments of yellowing degree treatments and a treatment of regular growing).Each treatment had 12 repeated samples.The results showed that the Kh,Ks,LSC and Hv was affected by the stem segment diameter,the relationship between the index and the diameter was positive correlation.Also the Kh,Ks and LSC could be decreased along with the yellowing degree’s increasing.However,change of Huber value was not significant under different yellowing degree.The embolism could be decreased along with the yellowing degree’s increasing.

关 键 词：俄罗斯杨 水力结构 导水率 栓塞 

分 类 号：S43[农业科学—农业昆虫与害虫防治]