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      Dinámica temporal de combustibles forestales y efecto del incendio en Cerro Nambiyugua, Chiapas, México Translated title: Temporal dynamics of forest fuels and effect of fire in cerro Nambiyugua, Chiapas, México

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          Abstract

          Resumen: Los combustibles forestales son uno de los principales reservorios de carbono, pero también se consideran un factor involucrado en la ocurrencia e intensidad de incendios forestales. El objetivo de este estudio fue analizar la dinámica temporal de almacenamiento y efecto del incendio sobre los combustibles forestales en bosque de pino (Pinus oocarpa Schiede). La medición de hojarasca, mantillo y materiales leñosos se realizó de 2010 a 2021 en cuatro sitios de un bosque de pino del Cerro Nambiyugua, Villaflores, Chiapas con el método del Inventario Nacional Forestal y de Suelos. En cada sitio, se utilizaron ocho cuadrantes de 30 x 30 cm2 para colectar las muestras de hojarasca y mantillo. Para el secado de las muestras, se utilizaron bolsas de papel estraza y se colocaron en estufa a 70°C durante 72 horas. El material leñoso caído se determinó con la metodología de intersección planar. La carga de hojarasca y mantillo aumentó gradualmente con el tiempo. Las mayores cargas de hojarasca se obtuvieron en el año 2018 con 12.67 t ha-1. Después del incendio forestal del año 2019, la carga de hojarasca disminuyó a 5.67 t ha-1, y para el 2021 aumento a 8.65 t ha-1. La tendencia de acumulación de material leñoso caído varió según la categoría de horas de ignición. Los resultados de este estudio tienen implicaciones fundamentales en las estrategias y periodicidad del manejo de carga de combustibles forestales y almacenamiento de carbono ya que con el cambio climático se espera mayor frecuencia de incendios forestales.

          Translated abstract

          Abstract: Forest fuel is one of the main carbon pools, but is also considered a factor involved in the occurrence and intensity of forest fires. The objective of this study was to analyze the temporal dynamics of forest fuel storage and the effect of fire in a pine (Pinus oocarpa Schiede) forest. The measurement of fresh and decomposed litter, and woody materials was carried out from 2010 to 2021 at four sites of a pine forest in the Cerro Nambiyugua, Villaflores, Chiapas, with the National Forest and Soil Inventory method. At each site, eight 30 x 30 cm2 quadrants were used to collect litter samples. To dry the samples, paper bags were used and placed in an oven at 70°C for 72 hours. The fallen woody material was sampled with the line intersection method. Fresh and decomposed litter load increased gradually over time. The highest litter loads were obtained in 2018 with 12.67 t ha-1. After the forest fire in 2019, the litter load decreased to 5.67 t ha-1, and by 2021 it increased to 8.65 t ha-1. The accumulation trend of fallen woody material varied according to the category of ignition hours. The results of this study have fundamental implications in the strategies and periodicity of forest fuel load management and carbon storage, since a greater frequency of forest fires is expected with climate change.

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          Forest biodiversity, ecosystem functioning and the provision of ecosystem services

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            Fire and biodiversity in the Anthropocene

            Fire has been a source of global biodiversity for millions of years. However, interactions with anthropogenic drivers such as climate change, land use, and invasive species are changing the nature of fire activity and its impacts. We review how such changes are threatening species with extinction and transforming terrestrial ecosystems. Conservation of Earth’s biological diversity will be achieved only by recognizing and responding to the critical role of fire. In the Anthropocene, this requires that conservation planning explicitly includes the combined effects of human activities and fire regimes. Improved forecasts for biodiversity must also integrate the connections among people, fire, and ecosystems. Such integration provides an opportunity for new actions that could revolutionize how society sustains biodiversity in a time of changing fire activity.
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              Changing wildfire, changing forests: the effects of climate change on fire regimes and vegetation in the Pacific Northwest, USA

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                Author and article information

                Journal
                era
                Ecosistemas y recursos agropecuarios
                Ecosistemas y recur. agropecuarios
                Universidad Juárez Autónoma de Tabasco, Dirección de Investigación y Posgrado (Villahermosa, Tabasco, Mexico )
                2007-9028
                2007-901X
                August 2022
                : 9
                : 2
                : e3253
                Affiliations
                [2] Villaflores orgnameUniversidad Autónoma de Chiapas orgdiv1Facultad de Ciencias Agronómicas Mexico
                [3] Villaflores orgnameUniversidad Autónoma de Chiapas orgdiv1Facultad de Ciencias Agronómicas Mexico
                [1] Tuxtla Gutiérrez orgnameUniversidad de Ciencias y Artes de Chiapas orgdiv1Instituto de Investigación en Gestión de Riesgos y Cambio Climático Mexico
                Article
                S2007-90282022000200003 S2007-9028(22)00900200003
                10.19136/era.a9n2.3253
                84eb4406-7450-4504-b3df-f9db081a779d

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 11 May 2022
                : 20 January 2022
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 46, Pages: 0
                Product

                SciELO Mexico

                Categories
                Artículos científicos

                Almacenamiento de necromasa, bosque de pino, hojarasca,Necromass storage, pine forest, litter,fallen woody material, ecosystem functions,material leñoso caído, funcionamientos ecosistémicos

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