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

Table 2 Richness and diversity indices for all samples

Sample no.	Shannon	Chao1	ACE
INI	10.23 ± 0.63^c	5027.79 ± 1041.01^e	5259.43 ± 1136.53^e
CK1	11.10 ± 0.13 ^ab	9176.42 ± 1153.96^d	9566.54 ± 1252.53^d
M1	11.10 ± 0.14^ab	9801.86 ± 1446.67^cd	10496.67 ± 1540.66^cd
O1	11.24 ± 0.11^ab	11185.28 ± 545.56^abc	12037.12 ± 345.87^abc
MO1	11.05 ± 0.16 ^ab	11857.49 ± 1114.83^ab	12757.53 ± 31243.65^ab
CK5	10.87 ± 0.80 ^b	10400.77 ± 357.57^bcd	10979.09 ± 341.81^bcd
M5	11.28 ± 0.08 ^ab	10398.70 ± 711.47^bcd	11152.10 ± 681.42^bcd
O5	11.33 ± 0.08 ^ab	11686.81 ± 832.46^ab	12437.37 ± 923.35^ab
MO5	11.12 ± 0.30 ^ab	10208.80 ± 1206.51^bcd	10893.57 ± 1314.10^bcd
FS	11.67 ± 0.04^a	12530.26 ± 143.91^a	13361.16 ± 155.45^a
Year (A)	NS	NS	NS
Fertilization (B)	NS	*	*
A×B	NS	NS	NS

Data represent the means ± SE, n = 3, values followed by different letters are considered significantly different (p < 0.05) according to Duncan’ s multiple comparison test. Significance for two-way ANOVA with reclaimed year and fertilization. NS not significant (p > 0.05). *p < 0.05 significance. INI initial soil without treatment, CK1 and CK5 no fertilizer for 1 and 5 years, respectively, M1 and M5, 1 year and 5 years of mineral fertilizer, O1 and O5 1 year and 5 years of organic fertilizer, MO1 and MO5, 1 year and 5 years of combined of inorganic and organic fertilization, FS normal farmland soil without land subsidence

ISSN: 1869-2044