Table 2.
Relative contributions of potential factors to ectomycorrhizal fungal composition in Pinus pumila forests in Japan
| Factor | Litter + Mineral soil | Litter | Mineral soil | ||||||
|---|---|---|---|---|---|---|---|---|---|
| Forward-selected variables | R2 | R2adj | Forward-selected variables | R2 | R2adj | Forward-selected variables | R2 | R2adj | |
| Spatiality | PCNM1, 2, 3, 7, 6 | 0.316 | 0.179 | PCNM2, 1 | 0.261 | 0.163 | PCNM1, 2 | 0.308 | 0.170 |
| Climate | PC.t1, Prec, t5, t4, t6 | 0.416 | 0.239 | PC.t1, Prec, t5 | 0.368 | 0.232 | PC.t1, t2 | 0.300 | 0.160 |
| Soil | pH, C/N ratio | 0.155 | 0.094 | pH | 0.133 | 0.079 | pH | 0.150 | 0.073 |
| Total | 0.666 | 0.374 | 0.544 | 0.296 | 0.585 | 0.288 | |||
R2adj R2 value adjusted by number of variables, PC.t principal component axis originated from the mean of daily-mean temperatures by month, Prec annual precipitation