亚热带常绿阔叶林木本植物幼树阶段抽枝展叶的权衡关系

莫丹, 王振孟, 左有璐, 向双

Trade-off between shooting and leaf developing of woody species saplings in subtropical evergreen broad-leaved forests

MO Dan, WANG Zhen-Meng, ZUO You-Lu, XIANG Shuang

表3 青城山常绿阔叶林木本植物第一、二次抽枝间小枝功能特征的标准化主轴(SMA)分析

Table 3 Standardized major axis (SMA) regression analysis on the scaling relationships between the twig functional traits of the first (n = 50) and second (n = 35) shooting of evergreen broad-leaved forest woody species of Qingcheng Mountain

y-x	抽枝批次 Batch of shooting	回归系数 Regression coefficient	p	分组斜率(置信区间) Group slope (CIs)	截距(置信区间) Intercept (CIs)	共同斜率(置信区间) Common slope (CIs)	p₀	截距 Intercept
单叶面积-小枝长 Individual leaf area-Twig length	I	0.741	<0.001	1.358 (1.172, 1.573)	-0.455 (-0.619, -0.291)	1.347 (1.198, 1.515)	0.855	-0.446^a
单叶面积-小枝长 Individual leaf area-Twig length	II	0.679	<0.001	1.327 (1.087, 1.620)	-0.309 (-0.545, -0.074)			-0.326^b
单叶面积-小枝直径 Individual leaf area-Twig diameter	I	0.447	<0.001	1.930 (1.558, 2.390)	-1.037 (-1.398, -0.676)	2.206 (1.942, 2.487)	0.136	-1.268^a
单叶面积-小枝直径 Individual leaf area-Twig diameter	II	0.826	<0.001	2.342 (2.021, 2.713)	-1.274 (-1.588, -0.960)			-1.151^b
单叶面积-叶片数 Individual leaf area-Leaf number	I	0.633	<0.001	1.334 (1.120, 1.589)	-0.426 (-0.618, -0.234)	1.570	0.001
单叶面积-叶片数 Individual leaf area-Leaf number	II	0.443	<0.001	2.317 (1.784, 3.010)	-1.361 (-1.947, -0.775)
小枝长-小枝直径 Twig length-Twig diameter	I	0.645	<0.001	1.421 (1.196, 1.688)	-0.429 (-0.642, -0.216)	1.554 (1.355, 1.778)	0.111	-0.540^a
小枝长-小枝直径 Twig length-Twig diameter	II	0.653	<0.001	1.764 (1.434, 2.170)	-0.727 (-1.061, -0.393)			-0.537^a
总叶面积-小枝长 Total leaf area-Stem length	I	0.720	<0.001	1.369 (1.175, 1.596)	-0.488 (-0.660, -0.315)	1.350 (1.205, 1.512)	0.794	-0.473^a
总叶面积-小枝长 Total leaf area-Stem length	II	0.761	<0.001	1.327 (1.117, 1.576)	-0.312 (-0.515, -0.109)			-0.332^b
总叶面积-小枝直径 Total leaf area-Twig diameter	I	0.427	<0.001	1.945 (1.565, 2.419)	-1.075 (-1.446, -0.704)	2.207 (1.937, 2.498)	0.168	-1.294^a