Southern African Fire Regimes as Revealed by Remote Sensing

摘要: Here we integrate spatial information on annual burnt area, fire frequency, seasonality, radiative power and size distributions to produce an integrated picture of regimes in southern Africa. The regional patterns are related gradients environmental human controls fire, compared with findings from other grass-fuelled systems the globe. regime differs across a gradient land use intensity, can be explained by differential effect humans ignition frequencies spread. Contrary savannas Australia, there is no obvious increase or intensity early late season Africa, presumably because very different. Similarly, importance large fires driving total area not These results point substantial that activities have system high rural population densities active management. Not all aspects equally impacted people: fire-return time show less response than burned area.