Fire is an important cause of disturbance in terrestrial ecosystems and can has a major impact on biodiversity. We evaluated the effect of fire regime on species richness and tree basal area in southern Amazon forest using Landsat and PALSAR data.
The fire regime of tropical forests is changing rapidly, with implications for forest cover, carbon storage, species composition, biodiversity, function, and climate. These changes are having a range of impacts over varying spatiotemporal scales and are explored in a journal special issue on the Transformation of Tropical Forests through Fire.
A huge new study has unravelled what factors control tree mortality rates in Amazon forests and helps to explain why tree mortality is increasing across the Amazon basin. The capacity of the Amazon forest to store carbon in a changing climate will ultimately be determined by how fast trees die. The new analysis found that the […]
Innovation by ancient farmers to improve soil fertility continue to have an impact on the biodiversity of the Amazon, a major new study shows.
There has been a large increase in deforestation and wildfire in Amazonia over recent years. Fire in tropical forests increases tree mortality, degrades forest structure, and reduces carbon stocks (Figure 1). Remote sensing now permits a rapid and accurate assessment of the location and extent of fires. On the ground and in forests, however, there […]
New research in Geography at the University of Exeter is developing a charcoal reflectance methodology into a novel metric with which to assess fire severity and the amount of energy that has been delivered across burned areas in the UK, USA and Brazilian Amazon.
We are seeking qualified and motivated candidates to pursue a PhD studying how lighting affects tree mortality, carbon dynamics, and forest composition in tropical forests.
Our recent research highlights the negative effects of fire on the forest carbon sink in seasonally flooded forests in southern Amazonia, an area rich in diversity at the forest-savanna transition, including permanent forest plots from the Parque Estadual Araguaia.
Previous research (Feldpausch et al. 2007) by my group showed the variation in rates of carbon uptake by regrowing secondary forests. Our new research published this month refines IPCC default rates used to estimate aboveground net biomass change for tropical and subtropical forest. The results will improve estimates of forest carbon uptake for greenhouse gas accounting.