| 氮源种类 | 物种 | 分离频率(%) | 相对多度(%) | 重要值 |
| N1 | a | 235.71 | 91.67 | 118.31 |
| b | 21.42 | 8.33 | 14.86 | |
| N2 | a | 378.57 | 70.67 | 224.62 |
| b | 14.29 | 2.67 | 8.48 | |
| c | 35.71 | 6.67 | 21.19 | |
| e | 14.29 | 17.33 | 15.81 | |
| h | 92.86 | 2.67 | 47.77 | |
| N3 | a | 392.85 | 27.5 | 210.18 |
| b | 607.14 | 42.5 | 324.82 | |
| A | 14.28 | 1 | 7.64 | |
| e | 185.71 | 13 | 99.36 | |
| h | 207.14 | 14.5 | 110.82 | |
| d | 14.28 | 1 | 7.64 | |
| N4 | a | 414.28 | 28.29 | 221.29 |
| b | 735.71 | 50.24 | 392.98 | |
| e | 35.71 | 2.44 | 19.08 | |
| A | 50 | 3.41 | 26.705 | |
| h | 228.57 | 15.61 | 122.09 | |
| N5 | a | 242.86 | 18.78 | 130.82 |
| b | 635.71 | 49.17 | 342.44 | |
| e | 85.71 | 6.63 | 46.17 | |
| A | 21.43 | 1.66 | 11.55 | |
| h | 257.14 | 19.89 | 138.52 | |
| G | 50 | 3.87 | 26.94 |