Potencial de recuperación de remanentes de bosque nativo colindantes a plantaciones de Pinus radiata afectados por incendios forestales en la comuna de Santa Juana.
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Date
2024
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Universidad de Concepción
Abstract
En Chile, se ha observado un aumento significativo en la severidad y la extensión de los incendios, alcanzando su punto máximo en los veranos de 2017 y 2023, con los "mega incendios" más extensos y severos registrados en el país. Este tipo de eventos afectan la estructura, composición y funcionamiento de la vegetación nativa, siendo una amenaza para la pérdida de biodiversidad. Factores climáticos, topográficos y arreglo del combustible, interactúan para determinar la extensión, velocidad e intensidad del fuego. Estas características de cada incendio moldearán la respuesta de la vegetación y su potencial de recuperación post-fuego. El objetivo de este estudio es evaluar la capacidad de regeneración de fragmentos de bosque nativo en un entorno dominado por plantaciones forestales. Se seleccionaron sitios afectados por el incendio “Santa Ana”, que contaran con la presencia de remanentes de bosque nativo los cuales estuvieran adyacentes a plantaciones de Pinus radiata. Se caracterizó la composición y estructura, para evaluar la respuesta regenerativa post incendio. Este muestreo se realizó a través de una serie de parcelas que caracterizaron el estrato arbóreo, arbustivo y herbáceo en mediciones realizadas en otoño y primavera de 2023.
In Chile, a significant increase in the severity and extent of wildfires has been observed, reaching its peak during the summers of 2017 and 2023, with the country experiencing the largest and most severe "mega fires" on record. This type of events affects the structure, composition, and functioning of native vegetation, posing a threat to biodiversity loss. Climatic, topographic, and fuel arrangement factors interact to determine the extent, speed, and intensity of the fires. The characteristics of each fire shape the vegetation's response and its potential for post-fire recovery. The objective of this study is to assess the regeneration capacity of native forest fragments in an environment dominated by forest plantations. Sites affected by the "Santa Ana" wildfire were selected, specifically those with remnants of native forest adjacent to Pinus radiata plantations. The composition and structure were characterized to evaluate the post-fire regenerative response. Sampling was conducted through a series of plots that characterized the tree, shrub, and herbaceous strata in measurements taken in the autumn and spring of 2023.
In Chile, a significant increase in the severity and extent of wildfires has been observed, reaching its peak during the summers of 2017 and 2023, with the country experiencing the largest and most severe "mega fires" on record. This type of events affects the structure, composition, and functioning of native vegetation, posing a threat to biodiversity loss. Climatic, topographic, and fuel arrangement factors interact to determine the extent, speed, and intensity of the fires. The characteristics of each fire shape the vegetation's response and its potential for post-fire recovery. The objective of this study is to assess the regeneration capacity of native forest fragments in an environment dominated by forest plantations. Sites affected by the "Santa Ana" wildfire were selected, specifically those with remnants of native forest adjacent to Pinus radiata plantations. The composition and structure were characterized to evaluate the post-fire regenerative response. Sampling was conducted through a series of plots that characterized the tree, shrub, and herbaceous strata in measurements taken in the autumn and spring of 2023.
Description
Tesis presentada para optar al título de Ingeniero/a en Conservación de Recursos Naturales.
Keywords
Restauración ecológica, Incendios forestales, Reforestación