Table 3 Diversity indices for 16S rRNA gene libraries from a paddy field and two natural wetland soils in Sanjiang plain, NE China. OTU Operational taxonomic unit, H’ Shannon’s diversity index, D Simpson’s index
| Â | No. of clones | No. of OTUs | Coverage (%) | Diversity indices | ||
|---|---|---|---|---|---|---|
H’ | D | S chao1 | ||||
Species (3Â % dissimilarity) | ||||||
 Paddy field | 200 | 126 | 48.4 | 4.66 | 0.0068 | 327 |
  Carex lasiocarpa | 200 | 120 | 52.5 | 4.58 | 0.0082 | 300 |
  Deyeuxia angustifolia | 200 | 114 | 58.9 | 4.58 | 0.0069 | 224 |
Genus (5Â % dissimilarity) | ||||||
 Paddy field | 200 | 119 | 53.3 | 4.58 | 0.0081 | 318 |
  Carex lasiocarpa | 200 | 108 | 61.2 | 4.45 | 0.0101 | 231 |
  Deyeuxia angustifolia | 200 | 94 | 68.3 | 4.28 | 0.0129 | 171 |
Class (15Â % dissimilarity) | ||||||
 Paddy field | 200 | 59 | 84.1 | 3.48 | 0.0557 | 100 |
  Carex lasiocarpa | 200 | 46 | 88.5 | 3.21 | 0.0692 | 94 |
  Deyeuxia angustifolia | 200 | 43 | 90.0 | 3.12 | 0.0685 | 61 |