@InProceedings{NogueiraMartSetzMore:2019:CoLaCo,
author = "Nogueira, Joana and Martins, Guilherme and Setzer, Alberto
Waingort and Morelli, Fabiano",
affiliation = "{Instituto Nacional de Pesquisas Espaciais (INPE)} and {Instituto
Nacional de Pesquisas Espaciais (INPE)} and {Instituto Nacional de
Pesquisas Espaciais (INPE)} and {Instituto Nacional de Pesquisas
Espaciais (INPE)}",
title = "A comparison of land cover maps to define vegetation classes of
fire risk in Brazil",
booktitle = "Anais...",
year = "2019",
pages = "789",
organization = "International Wildland Fire Ecology and Fire Management Congress,
7.",
keywords = "Fire modelling, fire prone ecosystems, land use, Mapbiomas,
IGBP.",
abstract = "Natural fires are essential in the structure and functioning of
many ecosystems in the world. Some vegetation types are more
vulnerable to fire, e.g.tropical forests, whereas others are fire
dependent, like savannas. However, the constant and uncontrolled
use of fire as an agricultural tool, particularly in developing
regions, has contributed to accelerate land cover (LC) changes and
to disrupt spatial distribution patterns of the original
vegetation even in fire-prone ecosystems. Satellite-derived LC
global products have been developed to quantify frequencies,
processes and drivers of annual LC changes, where accurate
characterization and mapping of LC is key to define the most fire
affected vegetation types. In this context, the aim of this study
was to evaluate LC maps to define the fire risk (FR) vegetation
classes used in the INPE \́s FR model. We compared the
global ESA CCI Land cover derived from the Meris-300m sensor and
the NASA/MCD12Q1-IGBP from Modis-500m data products with the
regional LC Mapbiomas derived from 30-m Landsat images, used here
as a reference for the Brazilian territory. All maps were
evaluated for the year 2012 at 1 km spatial resolution and
reclassified in the seven LC classes used in the FR model:
1-Grasslands, 2-Croplands and Cropland/Natural vegetation mosaic,
3-Open Shrublands/ Savannas, 4-Closed Shrublands/Woody Savannas,
5-Evergreen Needleleaf Forests, 6-Deciduous Needleleaf/Mixed
Forests, and 7-Evergreen Broadleaf Forests/Permanent wetlands. All
LC datasets showed >40% of coincident pixels to 7. The main
differences were observed in the fire-prone ecosystems comparing
global products and Mapbiomas, with ~34% of reduction to 3 and 4
and an increase of ~14% in 1, showing that global products tend to
classify typical Brazilian savannas as grasslands. Our results
demonstrate the importance of a reliable regional LC map to
improve the quality of spatial vegetation distribution to estimate
fire risk. An accurate fire risk LC type characterization can
support decision strategies in fire management and fire modelling.
From these results, Mapbiomas and its yearly updates were adopted
as the vegetation map input for INPE \́s FR, replacing
MCD12Q1-IGBP.",
conference-location = "Bras{\'{\i}}lia, DF",
conference-year = "2019",
doi = "10.37002/biodiversidadebrasileira.v9i1.1174",
url = "http://dx.doi.org/10.37002/biodiversidadebrasileira.v9i1.1174",
language = "en",
targetfile = "1174-Texto do Artigo-6020-1-10-20191030.pdf",
urlaccessdate = "05 maio 2024"
}