TABLE 2.

Microbial richness and diversity indices for clustering at 97% identity in soils along wetland degradation gradients.

Degradation	OTU number	Shannon	Simpson	Ace	Chao	Coverage
W	2002 ± 263a	6.18 ± 0.19a	0.0067 ± 0.0013a	2625.6 ± 398.9a	2597.2 ± 402.2a	0.972 ± 0.005a
WM	1966 ± 176a	6.19 ± 0.15a	0.0059 ± 0.0015a	2655.8 ± 263.9a	2615.9 ± 277.7a	0.971 ± 0.003a
M	1931 ± 300a	6.18 ± 0.28a	0.0056 ± 0.0023a	2621.7 ± 402.3a	2595.4 ± 390.2a	0.971 ± 0.004a
G	2065 ± 226a	6.37 ± 0.05a	0.0055 ± 0.0011a	2663.0 ± 523.3a	2634.4 ± 512.9a	0.973 ± 0.008a
D	1751 ± 156b	6.06 ± 0.18b	0.0071 ± 0.0038a	2382.5 ± 254.6b	2395.8 ± 237.8b	0.974 ± 0.003a

OTU, operational taxonomic unit; Shannon, Shannon-Weiner index.

W, typical wetland; WM, wet meadow; M, meadow; G, grassland; D, desert.

Different letters represent significant difference at P < 0.05.