Support is being provided to multi-year experiments in Brazil
that are testing the response of the Cerrado and tropical forest
ecosystems to different seasons and frequencies of burning. Fuel
consumption, fire behavior, and ecological impacts are being examined
in conjunction with experiments near Brasília at the Ecological
Reserve of the Brazilian Federal Institute of Geography and Statistics
(IBGE), the Tapajos National Forest near Santarém, and
private forest lands in northern Mato Grosso. Results from these
studies and the Integrated Fire Assessment will support the creation
by IBAMA of fire management plans and demonstrations on the Brazilian
conservation reserves and national parks.
Assistance is being provided to IBAMA in the development of a
rating system for monitoring and predicting seasonal and annual
fire danger in central Brazil. Such a rating is needed to
anticipate and manage unusually severe fire seasons and to support
regulation of burning. Threshold conditions of fuel and
weather are being identified that allow fire spread in tropical
forest and savanna. Fire behavior under different forest
harvesting regimes is being determined. A regional climate
model (http://ecpc.ucsd.edu/projects/brazil.html)
is also being applied to provide daily to seasonal forecasts of
fire-weather severity, assess long-term changes in forest susceptibility
to fire, and examine the potential for smoke management in central
Brazil through fire permitting.