TABLE 2.
Percent contribution of the three environmental variables to variation of microbial communities as revealed by ABT analysis
| Variable | % variation in microbial abundance (PLFA) |
% variation in metabolic diversity (CLPP) |
% variation in phylogenetic diversity (DGGE) |
|||||
|---|---|---|---|---|---|---|---|---|
| Fungus/bacterium ratio | G+/G−a | Total biomass | AWCD | Shannon index | Simpson index | Shannon index | Simpson index | |
| Time | 36.71 | 35.13 | 37.95 | 36.05 | 33.09 | 60.98 | 29.85 | 22.61 |
| Location | 38.06 | 47.78 | 28.24 | 42.00 | 40.40 | 21.47 | 45.33 | 57.41 |
| Soil | 25.23 | 17.09 | 33.81 | 21.95 | 26.51 | 17.55 | 24.82 | 19.98 |
a
G+/G−, ratio of Gram-positive bacteria to Gram-negative bacteria.