DOI:
https://doi.org/10.14483/2256201X.20277Publicado:
27-06-2024Número:
Vol. 27 Núm. 2 (2024): Julio-diciembreSección:
Artículos de investigación científica y tecnológicaRelationships and Modeling of Cerrado Grassland Fuel in Jalapão, Tocantins state, Brazil
Relaciones y modelación del combustible de pastizales del Cerrado en Jalapão, estado de Tocantins, Brasil
Palabras clave:
forest fires, fuel consumption, fuel load estimation (en).Palabras clave:
incendios forestales, consumo de combustible, estimación de la carga de combustible (es).Descargas
Resumen (en)
The aim of this study was to understand the relationships between different destructive (grass and 1-h fuel load) and non-destructive fuel variables (grass height, litter height, number of species, and number of individuals), in order to develop models for estimating fuel load and moisture and analyzing fuel consumption. This study was carried out in a protected area located in the Cerrado biome, in the Jalapão region, Tocantins state, Brazil. The non-destructive characteristics of the vegetation were sampled to determine the live and dead fuel loads in different time-lag classes. Equations were obtained to estimate these loads, with values of R²aj, varying from 0.12 to 0.73. The considerable influence of dead grass fuel load on modeling could be observed, which is regarded as the main determining factor for a greater consumption of vegetation by fire.
Resumen (es)
El objetivo de este estudio fue comprender las relaciones entre las diferentes variables de combustible destructivas (pasto y carga de combustible de 1 h) y no destructivas (altura del pasto, altura de la hojarasca, número de especies y número de individuos), en aras de desarrollar modelos para estimar la carga de combustible y la humedad y analizar el consumo de combustible. Este estudio se llevó a cabo en un área protegida ubicada en el bioma Cerrado, en la región de Jalapão, estado de Tocantins, Brasil. Se muestrearon las características no destructivas de la vegetación para determinar las cargas de combustible vivo y muerto en diferentes clases de retardo. Se obtuvieron ecuaciones para estimar estas cargas, con valores de R²aj que varían entre 0.12 y 0.73. Se pudo observar la influencia considerable de la carga de combustible de pasto muerto en el modelado, la cual se considera el principal factor determinante para un mayor consumo de vegetación por el fuego.
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