Table 2 Percentage contribution and permutation importance of ecological factors.
Ecological factors | Percent contribution/% | Permutation importance/% |
|---|---|---|
Precipitation of October | 37.3 | 1.4 |
Solar Radiation of October | 20.1 | 3.2 |
Precipitation of November | 9.9 | 4.6 |
Max Temperature of Warmest Month | 7.1 | 20.9 |
Soil Unit Symbol (FAO-90) | 5.7 | 0.6 |
Isothermality | 5.7 | 1.6 |
Precipitation of May | 4.4 | 5.7 |
Soil available water capacity class | 3.5 | 1 |
Precipitation of Driest Month | 2.2 | 0.7 |
Altitude | 2.1 | 18.4 |
Topsoil organic carbon | 0.9 | 0.2 |
Precipitation of April | 0.4 | 39.7 |
Min Temperature of Coldest Month | 0.3 | 1.4 |
Topsoil sand fraction | 0.2 | 0.4 |
Topsoil clay fraction | 0.2 | 0.2 |
