Table 2.

Alpha diversity of soil bacterial communities in cropping systems of different ecological regions.

Region	Diversity	Y	YS	S	YJ	J	YC	C
HZ	Chao1	2674.52 ± 81.23Ab	2846.96 ± 47.65Aa	2718.78 ± 52.36Aa	2823.81 ± 52.33Aa	2833.08 ± 25.66Ba	2624.09 ± 77.64Bb	2781.86 ± 35.32Ba
	Sobs	2639.00 ± 27.89Ab	2806.00 ± 32.14Ab	2686.00 ± 45.32Bab	2790.00 ± 23.60Ba	2803.00 ± 34.25Ba	2593.00 ± 87.36Bab	2952.00 ± 66.32Aa
	Shannon	10.20 ± 0.16Ab	10.39 ± 0.25Aa	10.29 ± 0.77Aa	10.36 ± 0.65Aa	10.43 ± 0.81Aa	10.28 ± 0.44Aa	10.31 ± 0.59Aa
GN	Chao1	2680.10 ± 33.32Ab	2931.28 ± 41.20Aa	2871.50 ± 44.66Aa	2984.214 ± 85.23Aa	2931.32 ± 74.21Aa	2966.90 ± 85.21Aa	2902.44 ± 49.31Aa
	Sobs	2638.00 ± 17.65Ab	2888.00 ± 21.54Aa	2836.03 ± 25.62Aa	2937.00 ± 24.58Aa	2904.00 ± 44.12Aa	2927.00 ± 58.62Aa	2737.00 ± 24.68Ba
	Shannon	10.36 ± 0.21Ab	10.40 ± 0.18Aa	10.42 ± 0.77Aa	10.50 ± 0.81Aa	10.42 ± 0.54Aa	10.47 ± 0.33Aa	10.43 ± 0.28Aa
MY	Chao1	2044.74 ± 24.31Bc	2691.76 ± 29.66Ba	2350.13 ± 33.65Bb	2916.38 ± 53.24Aa	2761.78 ± 26.90Ca	2937.61 ± 58.32Aa	2952.12 ± 85.24Aa
	Sobs	2018.00 ± 19.56Bc	2670.00 ± 56.24Ba	2330.00 ± 22.20Cb	2887.00 ± 32.64Aa	2733.00 ± 44.21Ca	2904.00 ± 25.31Aa	2917.00 ± 22.36Aa
	Shannon	8.57 ± 0.62Bc	9.24 ± 0.29Bb	8.02 ± 0.33Bc	10.41 ± 0.46Aa	10.33 ± 0.19Aa	10.56 ± 0.22Aa	10.57 ± 0.32Aa

Lowercase letters indicate significant differences in the same ecological regions for different planting patterns, uppercase letters represent significant differences in the same planting patterns for different ecological regions (p < 0.05) (The same as Table 3).