Browsing by Author "Delgado Cabrera, Juan Carlos"

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    Pérdidas en madera y carbono almacenado por un incendio forestal en plantación de Pinus patula, granja de Irquis, Azuay, Ecuador
    (Universidad de Cuenca. Facultad de Ciencias Agropecuarias, 2026-02-18) Delgado Cabrera, Juan Carlos; Pérez Calle, Angel Roberto; Jadán Maza, Angel Oswaldo
    Wildfires represent an increasing threat to Pinus patula plantations in Ecuador. They release large amounts of carbon and substantially reduce the volume of harvestable wood, affecting both the forestry economy and climate-mitigation efforts. Therefore, quantifying their impacts is essential for informed decision-making in post-fire management and restoration. This study estimated the wood volume and stored carbon in burned and unburned trees, assessed their physical condition through morphological and anatomical traits, and compared both groups under different levels of fire severity. A completely randomized design was applied using 20 circular plots (10 burned and 10 unburned), where DBH, height, commercial and total volume, allometric carbon, and wood density were measured; additionally, three weighting or analysis level (optimistic, intermediate, and pessimistic) were applied according to the degree of damage. Results showed high heterogeneity in burned plots: high-severity fire caused 100% losses in basal area, volume, and carbon under the strictest scenarios, while medium-severity fire produced partial but significant reductions. In contrast, unburned plots maintained stable values across all variables, and wood density did not show marked differences among treatments. ANOVA confirmed significant differences (p < 0.05) in volume, basal area, and carbon between burned and unburned trees. In conclusion, the wildfire consistently and substantially reduced merchantable wood volume and stored carbon, demonstrating that fire severity is a key determinant of loss magnitude and emphasizing the need for more effective prevention and restoration strategies.