Table 1.
Response | Site | Year | Fire severity | Model r2 | P |
---|---|---|---|---|---|
NH4+ pool | * | ** | NS | 0.62 | 0.0076 |
NO3− pool | NS | *** | ** | 0.74 | 0.0003 |
Net ammonification | NS | NS | NS | – | NS |
Net nitrification | ** | P = 0.06 | NS | 0.55 | 0.0293 |
Net N mineralization | NS | NS | NS | – | NS |
Analyses tested for effects of site (Glade vs. Moran fires), fire severity (crown vs. severe surface fire), and year (2001 to 2004). For all models, n = 40 and df = 12, 27. Entries indicate significant main effects: *, P < 0.05; **, P < 0.01; ***, P < 0.001. NS, not significant. There were no significant interactions between main effects.