The effects of stump size and within-gap position on sprout non-structural carbohydrates concentrations and regeneration in forest gaps vary among species with different shade tolerances

Ecological Processes

Table 5 Effects of within-gap position and tree species on the concentrations of NSCs (soluble sugar, starch, and total NSC) and the ratios of leaf NSCs to stem NSCs in 1-year-old sprouts and 2-year-old sprouts

Factors	df	C_LSS		C_LS		C_LNSC		C_SSS		C_SS		C_SNSC		Ratio _NSC		Ratio _SS		Ratio _S
Factors	df	F	P	F	P	F	P	F	P	F	P	F	P	r	P	r	P	r	P
One-year-old
WGP	4	5.89	0.06	17.72	0.01	6.67	0.04	1.54	0.34	1.25	0.42	1.31	0.40	4.54	0.09	2.59	0.19	6.08	0.05
TS	2	77.57	0.00	135.56	0.00	52.92	0.00	76.18	0.00	178.23	0.00	250.67	0.00	13.48	0.02	1.63	0.30	89.37	0.00
WGP × TS	8	4.80	0.07	19.55	0.01	5.33	0.06	1.12	0.49	1.77	0.30	2.42	0.21	4.89	0.07	3.96	0.10	7.05	0.04
Two-year-old
WGP	4	12.70	0.02	1.75	0.30	7.85	0.04	3.39	0.13	0.62	0.67	1.03	0.49	2.19	0.23	9.02	0.03	1.15	0.45
TS	2	407.05	0.00	16.63	0.01	171.67	0.00	50.03	0.00	158.48	0.00	183.60	0.00	42.80	0.00	0.36	0.72	169.91	0.00
WGP × TS	8	4.24	0.09	3.53	0.12	4.24	0.09	1.32	0.42	3.05	0.15	1.52	0.36	0.81	0.63	2.23	0.23	1.07	0.51

Significant effects (P < 0.05) are bolded. C_LSS soluble sugar concentration in leaves, C_LS starch concentration in leaves, C_LNSC NSC concentration in leaves, C_SSS soluble sugar concentration in stems, C_SS starch concentration in stems, C_SNSC NSC concentration in stems, Ratio_ss, Ratio_S, and Ratio_NSC the ratio of leaf to stem for soluble sugar, starch, and NSC concentrations, respectively, WGP within-gap position, TS tree species