Table 1. The effects of elevated temperature (T) and N addition (N) on arbuscular mycorrhizal fungi (AMF) development and species composition.
| Treatments | AMF spore density (No. 20 g soil−1) | AMF spore diameter (μm) | AMF HLD (m g−1 soil) | AMF species diversity (H) | AMF Species evenness (E) | AMF species richness |
|---|---|---|---|---|---|---|
| C | 365 ± 26a | 108 ± 3a | 15.3 ± 0.6b | 1.93 ± 0.08a | 0.74 ± 0.03a | 13.67 ± 0.95a |
| N | 178 ± 18d | 55 ± 5c | 13.2 ± 1.1c | 1.58 ± 0.09b | 0.67 ± 0.03a | 10.33 ± 1.02b |
| T | 248 ± 23c | 97 ± 6b | 19.5 ± 1.6a | 1.99 ± 0.14a | 0.74 ± 0.05a | 15.00 ± 1.48a |
| T + N | 303 ± 14b | 92 ± 8b | 19.4 ± 0.6a | 1.86 ± 0.08a | 0.71 ± 0.04a | 12.00 ± 1.29a |
| Analysis of Variance (F-Values) | ||||||
| T | 3.3* | 4.7* | 25.3*** | 3.4NS | 0.6NS | 3.2NS |
| N | 9.9** | 23.9*** | 4.8* | 4.7* | 1.1NS | 5.1* |
| T*N | 33.1*** | 16.2** | 0.02NS | 2.6NS | 3.3NS | 4.8* |
Note, the lowercase letters in each column represent significant difference among different treatments at 0.05 level. *Significant difference at P < 0.05; **significant difference at P < 0.01; ***significant difference at P < 0.001; NS no significant difference. HLD is hyphal length density.