Table 5. Correlations between fire weather season length metrics and global net land carbon flux by continent and biome.
| Continent | Biome | Correlation between mean fire weather season length and global net land carbon flux | Correlation between long fire weather season affected area and global net land carbon flux |
|---|---|---|---|
| Africa | Tropical forest | NS | NS |
| Tropical and subtropical grasslands, savannas and shrublands | −0.358** | −0.431** | |
| Temperate and montane grasslands, savannas and shrublands | NS | NS | |
| Mediterranean forests, woodlands and scrub | NS | NS | |
| Xeric shrublands | NS | NS | |
| Eurasia | Tropical forest | NS | NS |
| Temperate broadleaf forests | NS | NS | |
| Temperate conifer forests | NS | −0.036 | |
| Tropical and subtropical grasslands, savannas and shrublands | NS | NS | |
| Temperate and montane grasslands, savannas and shrublands | NS | NS | |
| Boreal forests/taiga and tundra | NS | NS | |
| Mediterranean forests, woodlands and scrub | NS | −0.377** | |
| Xeric shrublands | 0.381** | 0.467*** | |
| Australia/New Zealand | Tropical forest | −0.292* | NS |
| Temperate broadleaf forests | NS | NS | |
| Tropical and subtropical grasslands, savannas and shrublands | NS | NS | |
| Temperate and montane grasslands, savannas and shrublands | NS | NS | |
| Mediterranean forests, woodlands and scrub | NS | −0.325* | |
| Xeric shrublands | NS | NS | |
| North America | Tropical forest | NS | −0.299* |
| Temperate broadleaf forests | NS | NS | |
| Temperate conifer forests | NS | NS | |
| Tropical and subtropical grasslands, savannas and shrublands | NS | 0.341* | |
| Temperate and montane grasslands, savannas and shrublands | NS | NS | |
| Boreal forests/taiga and tundra | NS | NS | |
| Mediterranean forests, woodlands and scrub | NS | NS | |
| Xeric shrublands | NS | NS | |
| South America | Tropical forest | −0.414** | −0.489*** |
| Temperate broadleaf forests | NS | −0.434** | |
| Tropical and subtropical grasslands, savannas and shrublands | −0.456*** | −0.396** | |
| Temperate and montane grasslands, savannas and shrublands | NS | NS | |
| Xeric shrublands | −0.545*** | −0.397** |
NS, not significant.
Spearman's rank-order correlation coefficients between first-difference detrended global net land carbon flux and continental-level, biome mean fire weather season length and long fire weather season affected area (***P<0.01, **P<0.05, *P<0.1).