Table 6. Changes in soil microbial PLFA and enzyme diversity under different fertilization treatments.

Data are means ± S.E., n = 3. Different lowercase letters indicate significant differences among different treatments at the P < 0.05 level.

Treatment	Soil enzyme diversity	Microbial PLFA diversity
	H′E	H′M	SR	J
0N	1.84 ± 0.02 d	3.14 ± 0.01 c	10.39 ± 0.10 b	0.84 ± 0.01 a
100IN	1.88 ± 0.02 c	3.14 ± 0.02 c	9.91 ± 0.40 b	0.83 ± 0.01 b
75IN/25ON	1.91 ± 0.02 b	3.15 ± 0.03 c	10.40 ± 0.39 b	0.81 ± 0.01 bc
50IN/50ON	1.93 ± 0.00 ab	3.19 ± 0.02 b	11.61 ± 0.12 a	0.79 ± 0.01 d
25IN/75ON	1.94 ± 0.00 a	3.26 ± 0.00 a	11.47 ± 0.57 a	0.80 ± 0.01 cd

H′_E: Shannon’s diversity index (enzyme), H′_M:Shannon’s diversity index (PLFAs), SR: Margalef richness index, J: Pielou evenness index