Linking soil organic carbon mineralization to soil physicochemical properties and bacterial alpha diversity at different depths following land use changes

Ecological Processes

Table 3 Pearson’s correlation analysis results between the cumulative SOC mineralization and soil properties, enzyme activity, and soil bacterial α-diversity levels

Variables	Cumulative SOC mineralization
	r	P value
pH	− 0.811**	0.004
BD	− 0.640*	0.046
TN	0.501	0.14
TP	0.592	0.071
TK	0.017	0.963
Shannon	0.850**	0.002
OTUs	0.455	0.187
ACE	0.162	0.655
Chao	0.163	0.653
Urease	0.519	0.124
Alkaline phosphatase	0.612	0.06
Catalase	0.191	0.596

The bold values reflecte the significant correlation between the cumulative SOC mineralization and specific soil property (*0.01 < P < 0.05, **P < 0.01)
BD indicates bulk density; TN indicates total nitrogen; TP indicates total phosphorus; TK indicates total potassium; the soil bacterial α-diversity, operational taxonomic units (OTUs), Shannon’s diversity index, ACE, and Chao values are also listed