Logotipo ImpactU
Autor

Relación entre la severidad de quemado y la recuperación de la vegetación post-incendio en un bosque altoandino en el cerro Aguanoso, cerros orientales, Bogotá

Abstract:

Burn severity which is defined as the level of damage and ecosystem perturbation. Can be clasified into different levels depending of the magnitude of damage that is generated, it depends of the coverage type and its sensitivity or tolerance to fire. Therefore, knowing the burn severity after a wildfire is essential to understand the fire effect and management of the area. The severity´s assesment was performed in the forest reserve Cerros Orientales of Bogotá, specifically for Cerro Aguanoso and surroundings, also there are exotic species plantations (pine and eucalyptus), shrubberyn among others. Satellite images were used and an atmospheric correction was made to establish the burn severity, recovery and changes of those areas starting from a pre-fire scenario and five years of evaluation after the disturbance. Using vegetation indices (NDVI and NBR) and additionally performing the Corine Land Cover methodology adapted for Colombia. Also, the change in cover after the fire and during five years in the affected area was identified, by taking a picture each year starting in 2016 before the fire and continuing from 2018 to 2021 in which the greatest changes were presented for secondary vegetation cover, ´´herbazal´´ and ´´ latifoliadas´´ plantation, while the ´´coníferas´´ did not show any considerable changes. The burn severity for most of the area showed moderated levels (high-moderated) and the most affected areas were the secondary vegetation and ´´latifoliadas´´ plantation, followed by ´´ herbazal´´, while ´´ coníferas´´ plantation showed moderate to low severity. The condition (NDVI) allowed to identify a general recovery in the area evaluated five years after the fire, highlighting médium and high increase of the condition, as well as uniformity conditions by 2021, decreasing the patches in which low conditions were present by 2016, therefore, it is concluded that satellite images were very useful to identify the effect of the forest fire that occurred in 2016, and the recovery capacity of some vegetation covers.

Tópico:

Environmental and Ecological Studies

Citaciones:

Citations: 0
0

Citaciones por año:

No hay datos de citaciones disponibles

Altmétricas:

No hay DOI disponible para mostrar altmétricas

Información de la Fuente:

FuenteNo disponible
Cuartil año de publicaciónNo disponible
VolumenNo disponible
IssueNo disponible
PáginasNo disponible
pISSNNo disponible
ISSNNo disponible
Perfil OpenAlexNo disponible

Enlaces e Identificadores:

Tesis de Pregrado