Spatial Heterogeneity of Soil Chemical Properties in a Subtropical Karst Forest, Southwest China

Table 3

Correlation between the soil chemical properties and topographic factors (elevation, slope, aspect, and rock-bareness rate).

Soil properties	Elevation	Slope	Aspect	Rock-bareness rate
pH	0.227*	0.345**	−0.155	0.403**
OM (%)	0.121	0.229*	−0.106	0.343**
TN (%)	0.072	0.244*	−0.110	0.432**
TP (%)	−0.600**	−0.370**	−0.083	0.139
TK (%)	−0.558**	−0.525**	−0.180	−0.102
TCa (%)	0.223*	0.251*	−0.093	0.216*
TMg (%)	0.275**	0.230*	−0.078	0.252*
AN (mg/kg)	−0.422**	−0.129	−0.042	0.305**
AP (mg/kg)	0.042	0.138	−0.073	0.315**
AK (mg/kg)	−0.622**	−0.385**	0.109	−0.155

^∗𝑃<0.05; ^∗∗𝑃<0.01.