自然和人工生境被子植物枝木质部结构与功能差异

[an error occurred while processing this directive]

方菁¹^,², 叶琳峰¹^,², 陈森¹^,², 陆世通¹^,², 潘天天¹^,², 谢江波¹^,²^,³, 李彦¹^,²^,³, 王忠媛¹^,^*(

)

Differences in anatomical structure and hydraulic function of xylem in branches of angiosperms in field and garden habitats

FANG Jing¹^,², YE Lin-Feng¹^,², CHEN Sen¹^,², LU Shi-Tong¹^,², PAN Tian-Tian¹^,², XIE Jiang-Bo¹^,²^,³, LI Yan¹^,²^,³, WANG Zhong-Yuan¹^,^*(

)

图4. 三种植物自然和人工生境功能性状(K_s和P₅₀)与解剖结构的网络分析。A, 自然生境三角槭。B, 自然生境青冈。C, 自然生境女贞。D, 人工生境三角槭。E, 人工生境青冈。F, 人工生境女贞。实线, 正相关; 虚线, 负相关。红色线条, p < 0.05; 灰色线条, p > 0.05。线条粗细表示相关系数(r)的大小。D, 导管直径(μm); K_s, 比导率(kg·m^-1∙MPa^-1·s^-1); N, 导管密度(10³∙mm^-2); P₅₀, 导水率损失50%时的水势(-MPa); T, 导管壁厚(μm); Ttob为(t/b)², 厚度跨度比; WD, 木质部密度(g∙cm^-3)。

Fig. 4. Correlation networks between functional traits (K_s and P₅₀) and structural traits of xylem for the three species in field and garden habitat. A, Acer buergerianum in the field. B, Cyclobalanopsis glauca in the field. C, Ligustrum lucidum in the field. D, A. buergerianum in the garden. E, C. glauca in the garden. F, L. lucidum in the garden. Solid lines, positive correlations; dashed lines, negative correlations. Red lines, p < 0.05; grey lines, p > 0.05. Line thickness indicate the correlation coefficient (r) values. D, vessel diameter (μm); K_s, specific hydraulic conductivity (kg·m^-1∙MPa^-1·s^-1); N, vessel density (10³∙mm^-2); P₅₀, water potential at 50% loss of conductivity (-MPa); T, double thickness of vessel wall (μm); Ttob, thickness-to-span ratio of vessels ((t/b)²); WD, xylem density (g∙cm^-3).