INVESTIGADORES
GHERMANDI luciana
congresos y reuniones científicas
Título:
Annual burned area across a precipitation gradient in northwestern
Autor/es:
FACUNDO ODDI, LUCIANA GHERMANDI, AND ROSA LASAPONARA
Lugar:
Viena
Reunión:
Congreso; EGU General Assembly 2013; 2013
Institución organizadora:
EGU
Resumen:
Fire is one of the most important disturbances on the Earth affecting most terrestrial ecosystems. Evidence suggests that since the last glaciations there has been a substantial interaction among climate, vegetation and fire. In fact fire is recognized as an emergent property of climate and vegetation type, which determine that distinct regions are differently affected by wildfires. For instance, it has been suggest that relative roles of weather/climate and fuel on fire activity change along the global productivity/aridity (intermediate fire-productivity hypothesis). At one extreme of the gradient we find dry-unproductive regions (deserts) where fire is absent owing to very low fuel loads, while at the other extreme we have wet-productive environments (rain forest) with fire being unlikely due to high fuel moisture. Environments located around middle of the gradient, such as Mediterranean ecosystems, have a high fire activity but is difficult to predict if the fuel moisture conditions are a stronger constrain on the fire regime or it is constrained by biomass production (i.e. fuel load).