Table 2.

Average value of soil properties in karst rocky desertification regions.

	pH	SOM g/kg	TN g/kg	TP g/kg	TK g/kg	AN mg/g	AP mg/g	AK mg/g
NKRD	6.07c	10.36b	0.40b	0.32a	14.28ab	45.36a	3.03a	136.46b
LKRD	7.71b	27.63b	0.43ab	0.30ab	14.75a	47.77a	2.10a	146.44b
MKRD	8.05b	39.22ab	0.61a	0.24ab	10.72b	62.61a	2.44a	182.17a
SKRD	8.53a	47.47a	0.67a	0.18b	9.99b	65.97a	2.29a	178.89a

The Tukey's HSD test is used to determine the significant difference between variables. Different letters are assigned to significant difference, P < 0.05. No KRD (NKRD), latent KRD (LKRD), moderate KRD (MKRD), and severe KRD (SKRD). Soil organic matter (SOM), total and available nitrogen (TN and AN), total and available phosphorus (TP and AP), and total and available potassium (TK and AK).