Table 4 Simple term effects of environmental variables based on Monte Carlo permutation tests from the redundancy analysis
From: Diversity of bacterium communities in saline-alkali soil in arid regions of Northwest China
Variable | Forward selection | |||
|---|---|---|---|---|
Contribution % | Explains % | pseudo-F | P | |
Sulfate anion content | 17.7 | 30.9 | 7.9 | 0.002 |
pH value | 11.7 | 20.4 | 5.9 | 0.006 |
Alkaline phosphatase | 6.8 | 11.8 | 4.0 | 0.016 |
Soil total salt content | 6.6 | 11.5 | 3.6 | 0.018 |
Soil organic matter content | 6.2 | 10.8 | 4.0 | 0.012 |
Urease | 3.8 | 6.6 | 2.5 | 0.042 |
Dehydrogenase | 3.9 | 6.8 | 2.8 | 0.038 |
Chloride anion content | 0.8 | 1.4 | 0.5 | 0.71 |