Evaluación y cartografiado de la severidadde los grandes incendios ocurridos en eldistrito forestal XIV (Verín-Viana) entre 2006-2016
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Sociedad Española de Ciencias Forestales
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La evaluación y el cartografiado de la severidad del fuego y del nivel de afectación de las copas en áreas arboladas resulta esencial para proponer y priorizar acciones de rehabilitación urgentes posteriores a los incendios. El principal objetivo de este estudio es el cartografiado y la obtención de mapas de niveles de severidad en los incendios ocurridos en el distrito forestal XIV (Verín-Viana) durante el período 2006-2016. También se ha realizado una primera aproximación hacia la búsqueda de relaciones entre las clases más altas de severidad del fuego y de daño a las copas y determinadas variables topográficas, meteorológicas y de combustibles. El estudio, basado en el cálculo de los índices dNBR (differenced Normalized Burn Ratio) y RdNBR (Relative difference Normaliced Burn Ratio) a partir de imágenes Landsat, discrimina cuatro clases de severidad de fuego y cuatro niveles de daño a las copas. Las variables que más explican el porcentaje de superficie quemada de la clase de severidad más elevada y el nivel más alto de daño a las copas fueron la velocidad del viento y el porcentaje del área quemada con pendiente entre el 30 y el 45%. Se observó que el dNBR estima una mayor superficie quemada en severidad moderada y baja en comparación con el RdNBR que estima una mayor superficie quemada con alta severidad.
[ENG] The evaluation and mapping of the severity of the fire and the level of affectation of the canopies in forested areas is essential to propose and prioritize urgent rehabilitation actions after the fires. The main objective of this study is to map and obtain maps of levels of severity in the fires that occurred in forest district XIV (Verín-Viana) during the period 2006-2016. A first approximation has also been made towards the search for relationships between the highest classes of fire severity and canopy damage and certain topographical, meteorological and fuel variables. The study, based on the calculation of the dNBR indices (differenced Normalized Burn Ratio) and RdNBR (Relative difference Normaly Burn Ratio) from Landsat images, discriminates four classes of fire severity and four levels of canopy damage. The variables that most explain the percentage of burned area of the highest severity class and the highest level of damage to the canopies were the wind speed and the percentage of the area burned with slope between 30 and 45%. that the dNBR estimates a greater area burned in moderate and low severity in comparison with the RdNBR that estimates a greater area burned with high severity.
[ENG] The evaluation and mapping of the severity of the fire and the level of affectation of the canopies in forested areas is essential to propose and prioritize urgent rehabilitation actions after the fires. The main objective of this study is to map and obtain maps of levels of severity in the fires that occurred in forest district XIV (Verín-Viana) during the period 2006-2016. A first approximation has also been made towards the search for relationships between the highest classes of fire severity and canopy damage and certain topographical, meteorological and fuel variables. The study, based on the calculation of the dNBR indices (differenced Normalized Burn Ratio) and RdNBR (Relative difference Normaly Burn Ratio) from Landsat images, discriminates four classes of fire severity and four levels of canopy damage. The variables that most explain the percentage of burned area of the highest severity class and the highest level of damage to the canopies were the wind speed and the percentage of the area burned with slope between 30 and 45%. that the dNBR estimates a greater area burned in moderate and low severity in comparison with the RdNBR that estimates a greater area burned with high severity.
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Alonso Rego, C., Ruiz Gonzalez, A.D & Arellano Pérez, S (2018). Evaluación y cartografiado de la severidad de los grandes incendios ocurridos en el distrito forestal XIV (Verín-Viana) entre 2006-2016. "Cuadernos De La Sociedad Española De Ciencias Forestales", 44(2), 169-182. https://doi.org/10.31167/csefv5i44.17547
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https://doi.org/10.31167/csefv5i44.17547Sponsors
Este estudio fue financiado por el Ministerio de Economía, Industria y Com- petitividad de España a través del proyecto de investigación GEPRIF (RTA2014- 00011-C06-04).
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© SECF 2021, CC BY-NC
Attribution-NonCommercial 4.0 International
Attribution-NonCommercial 4.0 International







