北京山区三种林下灌木水力结构、叶片功能性状及其环境适应策略

张箫荻, 王晓霞, 章毓文, 侯靖雨, 石骁鹏, 和璐璐, 刘亚栋, 薛柳, 何宝华, 段劼

Hydraulic architecture, leaf functional traits and environmental adaptation strategies of three understory shrubs in Beijing mountainous areas

ZHANG Xiao-Di, WANG Xiao-Xia, ZHANG Yu-Wen, HOU Jing-Yu, SHI Xiao-Peng, HE Lu-Lu, LIU Ya-Dong, XUE Liu, HE Bao-Hua, DUAN Jie

图5 北京西山3种灌木根、茎、枝木质部导管直径分布特征(平均值±标准误)。A-C, 黄荆根、茎、枝的木质部导管直径大小分布。D-F, 扁担杆根、茎、枝的木质部导管直径大小分布。G-I, 蒙桑根、茎、枝的木质部导管直径大小分布。I, 导管大小分布频率; II, 某一径阶导管对总导水率的贡献百分数。

Fig. 5 Xylem vessel diameter distributions in roots, stems, and branches of three shrubs in West Mountain of Beijing (mean ± SE). A-C, Size distribution of the xylem vessel diameters in the roots, stems, and branches of Vitex negundo. D-F, Size distribution of the xylem vessel diameters in the roots, stems, and branches of Grewia biloba. G-I, Size distribution of the xylem vessel diameters in the roots, stems, and branches of Morus mongolica. I, distribution of vessel diameter frequency; II, contribution of a certain size class of conduits to hydraulic conductivity (Kh).