Table 3.

Pearson correlation coefficients, their confidence intervals, and significance of above- and belowground traits with root electrical capacitance (REC) and root dry weight (RDW). See Table 2 for trait definitions.

	REC			RDW
Trait	r	CI	P value	r	CI	P value
Aboveground
SDW	0.72	0.66–0.75	<0.001	0.52	0.29–0.75	0.019
LDW	0.56	0.49–0.62	<0.001	0.78	0.51–0.91	<0.001
SSL	0.53	0.45–0.59	<0.001	0.59	0.22–0.82	0.005
MSL	0.37	0.28–0.45	<0.001	0.69	0.35–0.86	<0.001
MXL	0.44	0.35–0.31	<0.001	0.78	0.52–0.91	<0.001
RGR	0.42	0.33–0.49	<0.001	0.33	0.27–0.44	0.005
MSA	0.23	0.14–0.32	<0.001	0.31	—	0.178
SSA	0.39	0.31–0.46	<0.001	0.20	—	0.406
LFA	0.09	—	0.092	0.32	—	0.159
PSN	0.22	0.13–0.31	<0.001	0.23	—	0.310
ASN	0.19	0.10–0.28	<0.001	0.64	0.29–0.85	0.002
SPD	−0.11	0.01–0.20	<0.001	−0.34	—	0.139
PHE	0.38	0.29–0.46	<0.001	0.58	0.18–0.81	0.007
MSD	0.13	0.03–0.22	<0.001	0.33	—	0.148
SSD	0.39	0.31–0.47	0.0091	0.19	—	0.414
SLA	−0.23	0.13–0.31	<0.001	−0.56	0.15–0.80	0.010
LMA	0.24	0.20–0.30	<0.001	0.59	0.13–0.79	0.007
Belowground
REC				0.88	0.71–0.95	<0.001
RDW	0.88	0.71–0.95	<0.001
CDIA	0.65	0.30–0.85	0.001	0.67	0.33–0.86	0.001
CDW	0.67	0.33–0.86	<0.001	0.70	0.37–0.84	<0.001
RDIA	0.20	0.27–0.59	0.002	0.05	—	0.982
PRN	0.64	0.29–0.84	0.016	0.50	0.08–0.77	0.023
TRN	0.59	0.20–0.81	0.041	0.53	0.12–0.79	0.005
SRN	0.34	0.12–0.67	0.006	0.45	0.03–0.74	0.041