Different fertilization treatments in coal mining-affected soils change bacterial populations and enable soil reclamation

Table 4 Correlation between microbial diversity parameters, soil properties, and maize yield

	pH	AP (mg/kg)	AK (mg/kg)	AN (mg/kg)	MBC (mg/kg)	Maize yield (kg/ha)
Chao 1	–	0.559 **	0.838**	0.793**	0.584**	0.703**
ACE	–	0.562**	0.841**	0.798**	0.584**	0.706**
Shannon	–	0.558**	0.712**	0.722**	0.605**	0.641**
MBC (mg/kg)	–	0.978**	0.759**	0.879**	1	0.967**
Maize yield (kg/ha)	–	0.961**	0.825**	0.943**	0.967**	1

The relationships among different parameters were analyzed using Pearson correlation analysis. *p < 0.05 and **p < 0.01 were all considered statistically significant. Insignificant correlations were omitted. AP available phosphorus, AK available potassium, AN alkali-hydrolyzable nitrogen, MBC microbial biomass carbon

ISSN: 1869-2044