Table 2.

Pearson’s correlation coefficients for leaf traits, growth, photosynthesis, stomatal conductance, and fluorescence among all trees on June 22, 2015 (=wet).

Blue	SLA	dia gr	A	PNUE	g_s	C_i	Fv’/Fm’	ΦPSII
N	0.93^***	0.46	−0.45	−0.92^**	−0.24	−0.04	−0.56	−0.69
SLA		0.31	−0.63	−0.95^***	−0.54	−0.28	−0.77^*	−0.66
dia gr			−0.14	−0.48	−0.11	−0.18	0.33	−0.40
A				0.72^*	0.75^*	0.16	0.57	0.77^*
PNUE					0.53	0.20	0.60	0.79^*
g_s						0.74^*	0.60	0.27
C_i							0.30	−0.28
Fv’/Fm’								0.31

White
N	0.99^***	−0.58	−0.57	−0.82^*	0.16	0.46	−0.64	−0.37
SLA		−0.54	−0.61	−0.84^**	0.16	0.51	−0.67	−0.44
dia gr			0.12	0.36	0.07	0.11	0.20	−0.03
A				0.78^*	0.21	−0.60	0.50	0.71^*
PNUE					0.31	−0.30	0.77^*	0.41
g_s						0.63	0.36	−0.22
C_i							−0.06	−0.78^*
Fv’/Fm’								0.04

Green
N	0.99^***	−0.12	−0.55	−0.88^**	−0.57	0.24	−0.05	−0.01
SLA		−0.20	−0.56	−0.85^**	−0.57	0.25	−0.06	0.02
dia gr			−0.07	−0.56	0.19	0.02	−0.47	−0.43
A				0.82^*	0.67	−0.75^*	0.08	0.71^*
PNUE					0.73^*	−0.46	0.02	0.41
g_s						−0.04	0.38	0.41
C_i							0.20	−0.59
Fv’/Fm’								0.35

Black
N	0.98^***	−0.40	0.26	−0.60	0.23	−0.05	0.37	0.31
SLA		−0.31	0.08	−0.73^*	0.06	−0.21	0.21	0.15
dia gr			−0.14	0.29	−0.41	−0.23	−0.14	0.08
A				0.54	0.85^**	0.63	0.93^***	0.80^*
PNUE					0.44	0.50	0.40	0.31
g_s						0.87^**	0.91^**	0.42
C_i							0.74^*	0.27
Fv’/Fm’								0.65

Man × Black
N	0.67	−0.31	−0.28	−0.72	0.01	0.36	0.09	0.05
SLA		−0.09	−0.59	−0.76^*	−0.25	0.43	−0.38	−0.27
dia gr			−0.01	−0.01	−0.15	−0.24	−0.27	−0.45
A				0.85^*	0.77^*	−0.13	0.63	0.81^*
PNUE					0.54	−0.27	0.42	0.60
g_s						0.53	0.91^**	0.85^**
C_i							0.54	0.23
Fv’/Fm’								0.77^*

Manchurian
N	0.83^**	0.74^*	0.44	−0.21	0.23	0.11	0.69	−0.18
SLA		0.43	0.01	−0.57	−0.01	−0.05	0.48	−0.43
dia gr			0.52	0.06	0.15	−0.10	0.52	−0.18
A				0.78^*	0.79^*	0.57	0.53	0.55
PNUE					0.74^*	0.60	0.14	0.71^*
g_s						0.94^***	0.66	0.48
C_i							0.63	0.41
Fv’/Fm’								−0.20

↵*P < 0.05,
↵**P < 0.01,
↵***P < 0.001; N = leaf nitrogen (μmol mol⁻² s⁻¹); SLA = specific leaf area (m²g⁻¹); dia gr = diameter growth in 2015 (cm); A = net assimilation rate (μmol m⁻² s⁻¹); g_s = stomatal conductance (mol m⁻² s⁻¹); PNUE = photosynthetic nitrogen use efficiency (μmol mol⁻² s⁻¹); C_i = intercellular CO₂ (μmol mol⁻¹); Fv’/Fm’ = light-adapted variable fluorescence; ΦPSII = fraction of absorbed photons used by photosystem II.