Fire-related forest properties observed using Landsat and radar data

Posted Posted in Amazonia, Biodiversity, Carbon storage, Fire, Forest degradation, Forest regrowth, Remote sensing, Tree mortality, Uncategorized

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.

Special Issue: Transformation of Tropical Forests Through Fire

Posted Posted in Biodiversity, Carbon sequestration, Carbon storage, Climate change, Drought, Fire, Forest degradation, Forest dynamics, Forest regrowth, Remote sensing, Temperature, Tree growth, Tree mortality, Tropical forest

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.

Scientists unravel how and why Amazon trees die

Posted Posted in Amazonia, Carbon sequestration, Carbon storage, Climate change, Forest dynamics, Forest regrowth, Tree growth, Tree mortality, Tropical forest

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 […]

Fire effects on understory forest regeneration in southern Amazonia

Posted Posted in Biodiversity, Carbon sequestration, Fire, Forest degradation, Forest regrowth, Forest structure

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 […]

Refinement of IPCC default rates of aboveground net biomass change for tropical and subtropical forest

Posted Posted in Carbon sequestration, Forest management, Forest regrowth, Policy

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.