植株大小、枝龄和环境共同驱动红松枝性状的变异

于青含, 金光泽, 刘志理

Plant size, branch age and environment factors co-drive variations of branch traits of Pinus koraiensis

YU Qing-Han, JIN Guang-Ze, LIU Zhi-Li

表3 红松枝性状与植株大小、枝龄和环境因素(光照强度、土壤含水量、土壤氮含量和磷含量)之间的广义线性模型(GLM)

Table 3 Generalized linear models (GLM) among branch traits, tree size, branch age and environment factors (light availability, soil water content, soil nitrogen content, soil phosphorus content) for Pinus koraiensis

性状 Trait	胸径 DBH (cm)	树高 Tree height (m)	枝龄 Branch age (year)	光照强度 Light intensity (mol·m^-2·d^-1)	土壤含水量 Soil water content (g·g^-1)	土壤氮含量 Soil nitrogen content (mg·g^-1)	土壤磷含量 Soil phosphorus content (mg·g^-1)	截距 Intercept
木质密度 WD (g·cm^-3)	0.007^**		0.009^***	0.003	0.003	-0.001	-0.001	0.393^***
枝氮含量 WN (mg·g^-1)		1.732^***	-0.373	0.121	-0.062	0.302	-0.224	8.881^***
木质部面积占比 R_XA	-0.006		0.090^***	-0.009	0.005	0.020^**	-0.019^*	0.310^***
韧皮部面积占比 R_PHA	0.006^***		0.007^***	-0.005^**	0.005^*	-0.001	-0.003	0.087^***
髓面积占比 R_PA	-0.003^***		-0.008^***	>0.001	>0.001	-0.001	>0.001	0.033^***
树脂道总面积占比 R_RC		0.011^***	-0.008^***	0.002	>0.003	-0.003	-0.001	0.067^***