图4. 阔叶红松林3个树种大树的叶片-叶柄性状相关关系在不同冠层间的差异。LA, 叶片面积; LDM, 叶片干质量; PDM, 叶柄干质量; PL, 叶柄长。p值表示斜率(Slope)间差异的显著性; p < 0.05, 差异显著, 不具有共同斜率(Common slope); p > 0.05, 差异不显著, 具有共同斜率。图中彩色实线表示性状间相关关系显著; *, p < 0.05; **, p < 0.01; ***, p < 0.001。

Fig. 4. Differences in correlations between lamina-petiole traits in different canopy positions of the large tree of the three species in a broadleaved Korean pine forest. LA, lamina area; LDM, lamina dry mas; PDM, petiole dry mass; PL, petiole lengths. p value represents the significance of difference in slopes; p < 0.05, the difference is significant and there is no common slope; p > 0.05, the difference is not significant and there is a common slope. The colored solid lines in the figure indicate that the correlations between traits were significant; *, p < 0.05; **, p < 0.01; ***, p < 0.001.