Table 5. Correlations of runoff losses of nitrogen and phosphorus and the abundances of bacteria and fungi.
| Taxon | Nutrient runoff losses | ||||
|---|---|---|---|---|---|
| TN | NO3--N | NH4+-N | TP | DP | |
| Bacteria | |||||
| Proteobacteria | 0.9999** | 0.8937** | 0.5450 | 0.3595 | 0.5034 |
| Chloroflexi | -0.8407** | -0.9972** | -0.9080** | -0.8015** | -0.8864** |
| Acidobacteria | 0.8851** | 0.5558 | 0.0819 | -0.1263 | 0.0331 |
| Actinobacteria | -0.1358 | 0.3532 | 0.7633* | 0.8805** | 0.7939* |
| Planotomycetes | -0.9508** | -0.9834** | -0.7715* | -0.6230 | -0.7395* |
| Nitrospirae | 0.7163* | 0.2967 | -0.2047 | -0.4030 | -0.2523 |
| Firmicutes | 0.7606* | 0.9782** | 0.9559** | 0.8744** | 0.9404** |
| Cyanobacteria | -0.4201 | 0.0637 | 0.5405 | 0.7030* | 0.5810 |
| Bacteroidetes | 0.6250 | 0.9217** | 0.9941** | 0.9500** | 0.9876** |
| Gemmatimonadetes | 0.6748* | 0.9451** | 0.9848** | 0.9275** | 0.9752** |
| Verrucomicrobia | -0.9398** | -0.6630* | -0.2157 | -0.0088 | -0.1678 |
| Fungi | |||||
| Ascomycota | 0.3885 | 0.7810* | 0.9861** | 0.9991** | 0.9930** |
| Basidiomycota | -0.8954** | -0.9994** | -0.8561** | -0.7305* | -0.8298** |
| Mucoromycota | -0.6521 | -0.2115 | 0.2900 | 0.4819 | 0.3364 |
| Chytridiomycota | -0.3341* | -0.7432* | -0.9747** | -0.9999** | -0.9844** |
Notes: T0 = Traditional irrigation; T1 = Traditional irrigation and fertilization practice; T2 = Water-saving irrigation and optimizing fertilization.N: Nitrogen; TN: Total N; NO3−−N: Nitrate N; NH4+−N: Ammonium N; P: Phosphorus; TP: Total P; DP: Dissolved phosphorus.
*, **Significant at the 0.05 and 0.01 probability level, respectively.