河南4种栎属树木叶脉序特征研究  

Leaf Venation Characteristics of Four Oak Species in Henan

作　　者：陈丹丹[1] 郝凡 张益菻 张通 张硕新[1,2] 

机构地区：[1]西北农林科技大学林学院,陕西杨陵712100 [2]陕西秦岭森林生态系统国家野外科学观测研究站,陕西宁陕711699

出　　处：《西北林学院学报》2018年第1期74-77,155,共5页Journal of Northwest Forestry University

基　　金：国家重点研发计划子课题"秦岭太白山不同海拔梯度植物群落功能性状研究"(2016YFC0500202)

摘　　要：为探究河南宝天曼自然保护区内的短柄枹栎、麻栎、锐齿槲栎和栓皮栎的叶脉序特征差异,对4种栎属树木的叶片进行扫描,使用LEAF GUI叶脉序分析软件对叶脉序特征进行提取,通过主成分分析、单因素方差分析以及多重比较等方法对叶脉序特征进行分析,结果表明:1)麻栎、锐齿槲栎和栓皮栎通过增大叶脉密度来适应寒冷和干旱环境;2)麻栎和锐齿槲栎的叶脉间距离、叶脉边缘三维面积和二维面积以及闭合环形结构体积相对较小,叶脉密度和网眼密度相对较大,其叶脉系统运输能力更强;3)麻栎、锐齿槲栎和栓皮栎的叶脉密度和网眼密度相对较大,增强了叶脉系统的机械支持能力和抵御外部损伤能力。To compare vein characteristics of Quercus serrata var. brevipetiolata, Q. acutissirna, Q. aliena var. acuteserrata and Q. variabilis in Baotianman Natural Reserve of Henan, the leaves were scanned and the vein characteristics were extracted by software LEAF GUI. Principal component analysis,one-way ano- va and multiple comparison were used to analyze the vein characteristics. The results showed that 1） the capacity for adapting to the cold and drought environment of Q. acutissima,Q, aliena var. acuteserrata and Q. variabilis was stronger than that of Q. serrata var. brevipetiolata because of the higher vein density. 2） The ability of transport of Q. acutissima and Q. aliena var. acuteserrata was stronger than that of Q. varia- bilis and Q. serrata var. brevipetiolata, because the vein distance, mean 2D area, mean 3D area and mean volume of areole were relatively smaller and vein density and areole density were larger. 3） Higher vein and areole density of Q. acutissima,Q, aliena var. acuteserrata and Q. variabilis improved the abilities of supporting and resisting damage from exterior environment of leaves.

关 键 词：栎属 叶脉特征 胁迫 宝天曼 

分 类 号：S792.18[农业科学—林木遗传育种]