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
Hydraulic architecture, leaf functional traits and environmental adaptation strategies of three understory shrubs in Beijing mountainous areas
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 |
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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7 北京西山3种林下灌木功能性状间相关性网络。仅显示显著相关(p < 0.05)的功能性状, 红色边框代表度中心性值最高的性状, 不包含2.4提及的木质部解剖结构性状。ψmid, 正午叶水势; Gs, 气孔导度; Ks, 木质部比导水率(根、茎、枝均值); Pn, 净光合速率; Tr, 蒸腾速率; WUEi, 叶片水分利用效率; VD, 次级叶脉直径; VI, 水力脆弱性指数(根、茎、枝均值); VLA, 次级叶脉密度; VV, 叶脉体积。 |
| Fig. 7 Correlation network between functional traits of three understory shrubs in West Mountain of Beijing. Only significant correlations (p < 0.05) were shown, the red border represents the trait with the highest degree centrality values, excluding the xylem anatomical structural traits mentioned in 2.4. ψmid, mid-day leaf water potential; Gs, stomatal conductance; Ks, xylem specific hydraulic conductivity (root-stem- shoot mean); Pn, net photosynthetic rate; Tr, transpiration rate; WUEi, leaf instantaneous water use efficiency; VD, secondary vein diameter; VI, hydraulic vulnerability index (root-stem- shoot mean); VLA, secondary leaf vein density; VV, leaf vein volume. |
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