Fire and vegetation: Introduction to the special issue

Silveira, Fernando A. O.; Rossatto, Davi Rodrigo; Heilmeier, Hermann; Overbeck, Gerhard Ernst

doi:10.1016/j.flora.2021.151985

Flora

2022

DOI: 10.1016/j.flora.2021.151985

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Fire and vegetation: Introduction to the special issue

Fernando A. O. Silveira

Davi Rodrigo Rossatto

Hermann Heilmeier

et al.

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Cited by 4 publications

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“…The mentioned studies on wildfire propagation take into account large-scale mechanisms such as thermal and fluid mechanics ones, or take into account the main chemical compounds resulting from degradation and combustion (CO, CO 2 , H 2 O, H 2 and CH 4 ). However, there is a lack of investigation on the role of plants (Silveira et al 2022) and the large range of molecules involved in wildfire propagation at the fire front, given that Mediterranean plants are particularly rich in volatile essences (Owen et al 2001).…”

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confidence: 99%

Influence of combined hydric and thermal stresses on Rosmarinus officinalis and Cistus albidus

Jamaladdeen¹,

Coudour²,

Dédaldéchamp³

et al. 2023

Int. J. Wildland Fire

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Background. Wildfires are a growing threat, especially in Mediterranean climate areas during periods of drought. The wildfire research community continues to investigate propagation mechanisms considering thermal transfer and fluid mechanics and sometimes a simplified chemistry taking into account the main combustion products such as CO, CO 2 , H 2 O, H 2 and CH 4 . However, volatile organic compounds (VOCs) cannot be neglected and have a major role in vegetation ignition. Despite this, knowledge on the influence of wildfire on plant emissions remains lacking. Aims. This work addresses the effect of combined hydric and thermal stresses on the physiology and emissions of Rosmarinus officinalis and Cistus albidus, which are widely consumed in Mediterranean wildfires. Methods. Plants were submitted to hydric stress inside a greenhouse, then to thermal stress inside a heated hermetic enclosure while collecting emissions with adsorbent elements for analysis. Simultaneously, heating experiments were carried out with leaves sampled to analyse their emissions. Key results. The heating tests showed significant variations in monoterpene, fatty acid and alkane emissions between stressed and unstressed plants with different results between Rosmarinus officinalis and Cistus albidus. Conclusion/implication. Further experiments with other plant species and quantification of emissions may help to better know why Mediterranean wildfires are a particular threat and how to improve firefighting methods.

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mentioning

confidence: 99%

Influence of combined hydric and thermal stresses on Rosmarinus officinalis and Cistus albidus

Jamaladdeen¹,

Coudour²,

Dédaldéchamp³

et al. 2023

Int. J. Wildland Fire

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Editorial overview to the Special Issue ‘Wildfires in a changing world’

Volkova,

Fernández

2024

Forest Ecology and Management

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Mapping the probability of wildland fire occurrence in Central America, and identifying the key factors

Valdez,

Chen,

Chicas

et al. 2023

Int. J. Wildland Fire

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Background Wildland fires are part of the ecology of forests in Central America. Nevertheless, limited understanding of fire probability and the factors that influence it hinder the planning of intervention strategies. Aims This research combined climatic, anthropogenic and vegetation factors to identify wildland fire probability and determine the most relevant factors. Methods We performed an exploratory analysis to identify important factors and integrated them with fire observations using random forest. We then used the most relevant factors to predict wildland fire occurrence probability and validated our results using different measures. The results demonstrated satisfactory agreement with the independent data. Key results Central regions of Honduras, northern Guatemala and Belize have a very high probability of wildland fire occurrence. Human imprint and extreme climatic conditions influence wildland fire probability in Central America. Conclusions Using random forest, we identified the major influencing factors and areas with a high probability of wildland fire occurence in Central America. Implications Results from this research can support regional organisations in applying enhanced strategies to minimise wildland fires in high-probability areas. Additional efforts may also include using future climate change scenarios and increasing the time frame to evaluate the influence of teleconnection patterns.

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Fire and vegetation: Introduction to the special issue

Cited by 4 publications

References 41 publications

Influence of combined hydric and thermal stresses on Rosmarinus officinalis and Cistus albidus

Influence of combined hydric and thermal stresses on Rosmarinus officinalis and Cistus albidus

Editorial overview to the Special Issue ‘Wildfires in a changing world’

Mapping the probability of wildland fire occurrence in Central America, and identifying the key factors

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