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Abstract
Abstract Every year, many active fire spots are identified in the satellite images of the southern Brazilian grasslands in the Atlantic Forest biome and Pampa biome. Fire Radiative Power (FRP) is a technique that uses remotely sensed data to quantify burned biomass. FRP measures the radiant energy released per time unit by burning vegetation. This study aims to use satellite and field data to estimate the biomass consumption rate and the biomass consumption coefficient for the southern Brazilian grasslands. Three fire points were identified in satellite FRP products. These data were combined with field data, collected through literature review, to calculate the biomass consumption coefficient. The type of vegetation is an important variable in the estimation of the biomass consumption coefficient. The biomass consumption rate was estimated to be 2.237 kg s-1 for the southern Brazilian grasslands in Atlantic Forest biome, and the biomass consumption coefficient was estimated to be 0.242 kg MJ-1.
Highlights
The southern Brazilian grasslands, broadly called Campos, occur in two different biomes, namely the Pampa biome and the Atlantic Forest biome
The aim of this study is to estimate the rate of biomass consumption and the biomass consumption coefficient for the southern Brazilian grasslands in the Atlantic Forest biome, using both satellite data and field data
Using the INPE Fire Monitoring project database survey (INPE, 2015), we identified three heat points inside our study area, registered by the MODIS sensor on September 4, 2007, at 17:23 UTC
Summary
The southern Brazilian grasslands, broadly called Campos, occur in two different biomes, namely the Pampa biome and the Atlantic Forest biome. These grasslands are closely associated with livestock production, as they are the main forage supply for cattle and sheep. The livestock do not completely consume the grasslands aboveground biomass produced during the summer season. To avoid biomass accumulation, farmers undertake common fire control practices at the end of the winter season, between August and September, usually every year. The satellite images acquired annually for this region show many active fires in both biomes. Only a few studies on wildfires are carried out in the southern Brazilian grasslands with the use of satellite data
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