El papel del fuego en la regeneración de los bosques de coníferas

Sáenz-Ceja, Jesús Eduardo; Pérez-Salicrup, Diego R.

doi:10.5154/r.rchscfa.2018.06.054

Cited by 4 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…At the global level, forest ecosystems face increasingly frequent natural and human disturbances. Forest fires are one of the natural disturbances with the greatest impact on the dynamics of these ecosystems [1][2][3]. Specifically, the functioning of forests and the structure and composition of forest species are largely conditioned by the frequency and severity of fire [4,5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Fire Severity on the Species Diversity and Structure of a Temperate Forest in Northern Mexico

Zúñiga-Vásquez

Villanueva‐Díaz

Cerano‐Paredes

et al. 2022

Forests

View full text Add to dashboard Cite

Forests experience disturbances, such as fire, that affect their functioning, structure, and species composition. The objective of this work was to compare the species diversity and forest structure at sites affected by different degrees of fire severity, 9 years after a forest fire event. We used the differenced Normalized Burn Ratio (dNBR) index. Vegetation was sampled in three severity levels: high (HS), moderate (MS), and low (LS) and included the unburned (U) level as control. In addition, we calculated the species richness (S), the Shannon index (H), and the Evenness Index (E). The structural diversity of tree diameters and heights was measured applying the indices H, E, and the coefficient of variation (CV). The differences in the indices calculated across the fire severity levels were determined through analyses of variance (ANOVA) and Tukey’s multiple comparison tests. The results showed no significant differences (p ≤ 0.05) in the species diversity indices between fire severity levels. The structural diversity of tree diameters and heights was lower at the HS level. dNBR was negatively related to structural diversity; thus, it is concluded that HS tends to reduce structural variability in terms of diameter, height, and age. These results provide a baseline to understand how fire can modify forest structure and species diversity.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Fire Severity on the Species Diversity and Structure of a Temperate Forest in Northern Mexico

Zúñiga-Vásquez

Villanueva‐Díaz

Cerano‐Paredes

et al. 2022

Forests

View full text Add to dashboard Cite

show abstract

“…Las especies del género Pinus (Pinaceae) presentan diversos atributos morfofuncionales de adaptación a los regímenes de incendios que forman parte de la dinámica de estos bosques (Agee 1996, Keeley 2009, Keeley & Pausas 2022. Los bosques de pino mexicanos tienen un régimen histórico de incendios superficiales frecuentes de severidad baja a moderada (p.ej., Fulé et al 2011, Yocom & Fulé 2012, Cerano-Paredes et al 2015, Sáenz-Ceja & Pérez-Salicrup 2019. En estos bosques, después de un incendio llegan a formarse claros en el dosel que proveen de espacio y recursos para el establecimiento de nuevas generaciones de árboles (Rodríguez-Trejo & Fulé 2003).…”

unclassified

Efecto de la severidad de incendio en la estructura y regeneración del bosque tropical de pino-implicaciones para su restauración

Juan Baeza,

Martínez-Garza,

Jardel-Peláez

2024

Bot. Sci.

View full text Add to dashboard Cite

Antecedentes: En los bosques tropicales de pino, los incendios propician el mantenimiento de la biodiversidad. Hipótesis: Los incendios favorecen la regeneración natural; el aumento en la severidad de incendio y la topografía afectan la estructura, composición y regeneración del bosque. Sitio y años de estudio: El bosque tropical de pino en El Fresno, Morelos un año después de un incendio. Métodos: La estructura, composición y regeneración se evaluaron en 13 parcelas en un bosque no quemado y en 45 parcelas de 500 m2 que experimentaron severidad de incendio baja, media y alta. Además, la estructura del bosque antes del incendio se reconstruyo incluyendo a los árboles muertos. Resultados: Se registraron 4,727 individuos vivos, 1,134 muertos y 2,130 rebrotes de 11 especies en ocho familias: tres especies son reclutadoras y siete, rebrotadoras. La mayor abundancia de plántulas se registró en la severidad media: >98% fueron plántulas de Pinus pringlei (Pinaceae). La mayor abundancia de rebrotes se registró en la severidad alta: >72% fueron rebrotes de Quercus spp. (Fagaceae). El aumento en la severidad de incendio disminuyó el área basal y la cobertura del dosel. A mayor altitud hubo una mayor densidad de árboles adultos y juveniles mientras que a mayor pendiente se registró un aumento en el área basal de árboles muertos. Conclusiones: El incendio aumentó la regeneración y cambió la composición del bosque. En la severidad media de incendio aumentó la densidad de plántulas de pino, mientras que la severidad alta de incendio favoreció el rebrote de encinos.

show abstract

Dendrochronological reconstruction of fire history in coniferous forests in the Monarch Butterfly Biosphere Reserve, Mexico

Sáenz-Ceja

Pérez-Salicrup

2019

fire ecol

Self Cite

View full text Add to dashboard Cite

Background: Some have proposed that fire return intervals lengthen with elevation in montane tropical coniferous forests, such as those found in central Mexico. This would generate patterns of synchronous tree establishment in higher elevation forests dominated by Abies sp. Mill., and patterns of continuous tree establishment in lower elevation forests dominated by Pinus sp. L. However, it is common to find codominant stands of both genera at intermediate elevations. The Monarch Butterfly Biosphere Reserve (MBBR) is located in this region, and is covered by Abies religiosa (Kunth) Schltdl. & Cham-dominant forest, A. religiosa-Pinus pseudostrobus Lindley-codominant forest, and P. pseudostrobus-dominant forest. Despite the ecological importance of the MBBR's coniferous forests, little is known about their fire return intervals, including their relationship with climate, and their effects on tree establishment patterns according to the elevational range proposed above. In this study, using dendrochronological techniques, we reconstructed the historical fire return intervals for each forest type, evaluated their relationship with droughts and with the El Niño Southern Oscillation (ENSO), and assessed the effect of fire return intervals on tree establishment patterns. A total of 110 cross-sections were obtained, from 23 sites across the MBBR. Results: The fire chronology covered the period between 1925 and 2015. Fire return intervals averaged two years in stands dominated by A. religiosa, by P. pseudostrobus, and codominated by both species, regardless of elevation. No fire-free periods were detected, even after the establishment of the reserve in 2000. Fire frequency was not associated with periods of drought and ENSO. There was no relationship between fire return intervals and patterns of tree establishment, which was continuous in all three forest types. Conclusions: Our results suggest that coniferous forests of the MBBR have historically experienced frequent fires that are unrelated to climate and tree establishment. This may be evidence that natural fire regimes in these coniferous forests have been drastically altered by human activities. Although these frequent low-severity fires could adversely affect tree regeneration, and eventually decrease the integrity of the overwintering habitat of the Monarch Butterfly, the continuous tree regeneration observed suggests that these effects have not yet taken place.

show abstract

El papel del fuego en la regeneración de los bosques de coníferas

Cited by 4 publications

References 0 publications

Effect of Fire Severity on the Species Diversity and Structure of a Temperate Forest in Northern Mexico

Effect of Fire Severity on the Species Diversity and Structure of a Temperate Forest in Northern Mexico

Efecto de la severidad de incendio en la estructura y regeneración del bosque tropical de pino-implicaciones para su restauración

Dendrochronological reconstruction of fire history in coniferous forests in the Monarch Butterfly Biosphere Reserve, Mexico

Contact Info

Product

Resources

About