Does the degradation of histosols due to recurrent fire affect the establishment of a hygrophilal autochthonous tree species?

Forest Islands and their adjacent natural grasslands are vulnerable and sensitive ecosystems to the actions of severe fires, which result in losses of their resilience, which makes the potential of passive restoration of these environments unfeasible after such events. This study aims to verify, thr...

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Published in:Journal of environmental management 2024-05, Vol.359, p.121012-121012, Article 121012
Main Authors: Moura, Cristiane Coelho, Fonseca, Simone Nunes, Costa, Thaís Ribeiro, Pereira, Israel Marinho, Farnezi, Múcio Magno de Melo, Milani, Jaçanan Eloisa de Freitas, Fonseca, Darliana da Costa, Castro, Gislene Carvalho, Gonzaga, Anne Priscila Dias, Moura, Luciana Coelho, Machado, Evandro Luiz Mendonça
Format: Article
Language:English
Subjects:
Ecosystem
Fire severity
Fires
Flooded forest island
Forests
Organic soils
Restoration
Seedling production
Seedlings - growth & development
Trees
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Summary:Forest Islands and their adjacent natural grasslands are vulnerable and sensitive ecosystems to the actions of severe fires, which result in losses of their resilience, which makes the potential of passive restoration of these environments unfeasible after such events. This study aims to verify, through an autochthonous species exclusive to these Forest Islands, whether it can develop in Histosols around a Forest Island that has been degraded by fire for years. The place of study and collection of the material tested was in the Sempre-Vivas National Park. Histosols samples were collected for analysis of chemical and physical attributes and experimental conduction in a seedling nursery. The performance of Richeria grandis was evaluated in these Histosols from seed vigor tests, initial plant growth in a greenhouse. R. grandis manages to develop in Histosols around the degraded Forest Island, disregarding possible interspecific field competitions. The physical and chemical characteristics of the Histosols around the island do not prevent the effective restoration of this phytocenosis. R. grandis showed the same seed vigor for all Histosols tested and all seedlings survived until the end of the experiment. It was observed that the seedlings grown in the Histosols of the island of the forest, showed a behavior of greater height, number of leaves and moisture content, and the place with exposed Histosols, with the highest fire severity, provided the lowest development in height, diameter and number of leaves. According to ecophysiological analyses, the species is under some environmental stress regardless of the treatment. •Successive fires in moist Histosols cause loss of native biodiversity.•Fire influences the structural and floristic dynamics of vegetation.•It cannot be assumed that all species will be adaptable to different fire regimes.•The impacts of fire on the ecology of populations remain poorly understood.
ISSN:0301-4797
1095-8630
DOI:10.1016/j.jenvman.2024.121012