Variation Characteristics of Stem Water Content in Lagerstroemia indica and Its Response to Environmental Factors

Table 4

Path analysis results between StWC and environmental factors.

Independent variable	Simple correlation coefficient	Direct path coefficient	Indirect path coefficient						Total
				-0.732	-0.411	—	0.187	0.127		0.169	0.007	0.032	0.522
	0.505	0.137	0.187	—	0.122	0.219	0.106	0.055	0.689
	-0.549	-0.230	0.226	0.073	—	0.146	0.091	0.036	0.572
	-0.556	-0.305	0.229	0.098	0.111	—	0.153	0.034	0.625
	-0.141	0.224	0.014	0.065	0.093	0.208	—	0.014	0.394
	0.414	-0.074	0.175	0.101	0.112	0.142	0.043	—	0.573

: total radiation (W·m^-2); : air relative humidity (%); : wind speed (m/s); : air temperature (°C); : soil temperature(°C); : 15 cm soil moisture content (%).