Short-Term Response of Soil Bacterial Communities after Prescribed Fires in Semi-Arid Mediterranean Forests

Low-intensity burnings could be an effective silvicultural tool to prevent the occurrence and severity of wildfires. Nevertheless, their use as a forest fuel reduction tool may have a negative impact on soil properties. The aim of this investigation was to study the impact of a low-intensity prescri...

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Main Authors: Soria Martínez, Rocío, Tortosa, Antonio, Rodríguez-Berbel, Natalia, Lucas Borja, Manuel Esteban, Ortega Pérez, Raúl, Miralles Mellado, Isabel
Format: info:eu-repo/semantics/article
Language:English
Published: MDPI 2023
Subjects:
Online Access:http://hdl.handle.net/10835/14519
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author Soria Martínez, Rocío
Tortosa, Antonio
Rodríguez-Berbel, Natalia
Lucas Borja, Manuel Esteban
Ortega Pérez, Raúl
Miralles Mellado, Isabel
author_facet Soria Martínez, Rocío
Tortosa, Antonio
Rodríguez-Berbel, Natalia
Lucas Borja, Manuel Esteban
Ortega Pérez, Raúl
Miralles Mellado, Isabel
author_sort Soria Martínez, Rocío
collection DSpace
description Low-intensity burnings could be an effective silvicultural tool to prevent the occurrence and severity of wildfires. Nevertheless, their use as a forest fuel reduction tool may have a negative impact on soil properties. The aim of this investigation was to study the impact of a low-intensity prescribed fire on the main chemical properties of the soil (pH, electrical conductivity, and total organic carbon), and the diversity and composition of the soil bacterial communities in a semi-arid forest in SE Spain. Two similar stands were treated with a low-intensity prescribed burn in spring and autumn 2018 and were compared to an unburned stand. All soil samples were collected at the same time (autumn 2018). The chemical properties of the soil showed no significant differences between the prescribed burns and the control forest. Shannon and Pielou’s diversity indices presented values significantly lower in the burned soils compared to the control. Prescribed burning did not modify soil bacterial community structure at the phylum level, but NMDS analysis did reveal a difference between soil bacterial communities at the genus level. Both prescribed burnings favoured some bacterial taxa over others, suggesting different thermal and bacterial resistance. The presence of Massilia, Pseudomonas and Arthrobacter could suggest a short-term ecosystem recovery. Therefore, prescribed burning in semi-arid forests could be suitable as a preventive tool against wildfires.
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spelling oai:repositorio.ual.es:10835-145192023-04-19T17:59:12Z Short-Term Response of Soil Bacterial Communities after Prescribed Fires in Semi-Arid Mediterranean Forests Soria Martínez, Rocío Tortosa, Antonio Rodríguez-Berbel, Natalia Lucas Borja, Manuel Esteban Ortega Pérez, Raúl Miralles Mellado, Isabel controlled burn low-intensity fire prescribed fire soil bacteria soil resilience Low-intensity burnings could be an effective silvicultural tool to prevent the occurrence and severity of wildfires. Nevertheless, their use as a forest fuel reduction tool may have a negative impact on soil properties. The aim of this investigation was to study the impact of a low-intensity prescribed fire on the main chemical properties of the soil (pH, electrical conductivity, and total organic carbon), and the diversity and composition of the soil bacterial communities in a semi-arid forest in SE Spain. Two similar stands were treated with a low-intensity prescribed burn in spring and autumn 2018 and were compared to an unburned stand. All soil samples were collected at the same time (autumn 2018). The chemical properties of the soil showed no significant differences between the prescribed burns and the control forest. Shannon and Pielou’s diversity indices presented values significantly lower in the burned soils compared to the control. Prescribed burning did not modify soil bacterial community structure at the phylum level, but NMDS analysis did reveal a difference between soil bacterial communities at the genus level. Both prescribed burnings favoured some bacterial taxa over others, suggesting different thermal and bacterial resistance. The presence of Massilia, Pseudomonas and Arthrobacter could suggest a short-term ecosystem recovery. Therefore, prescribed burning in semi-arid forests could be suitable as a preventive tool against wildfires. 2023-04-19T17:59:11Z 2023-04-19T17:59:11Z 2023-04-03 info:eu-repo/semantics/article 2571-6255 http://hdl.handle.net/10835/14519 10.3390/fire6040145 en https://www.mdpi.com/2571-6255/6/4/145 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess MDPI
spellingShingle controlled burn
low-intensity fire
prescribed fire
soil bacteria
soil resilience
Soria Martínez, Rocío
Tortosa, Antonio
Rodríguez-Berbel, Natalia
Lucas Borja, Manuel Esteban
Ortega Pérez, Raúl
Miralles Mellado, Isabel
Short-Term Response of Soil Bacterial Communities after Prescribed Fires in Semi-Arid Mediterranean Forests
title Short-Term Response of Soil Bacterial Communities after Prescribed Fires in Semi-Arid Mediterranean Forests
title_full Short-Term Response of Soil Bacterial Communities after Prescribed Fires in Semi-Arid Mediterranean Forests
title_fullStr Short-Term Response of Soil Bacterial Communities after Prescribed Fires in Semi-Arid Mediterranean Forests
title_full_unstemmed Short-Term Response of Soil Bacterial Communities after Prescribed Fires in Semi-Arid Mediterranean Forests
title_short Short-Term Response of Soil Bacterial Communities after Prescribed Fires in Semi-Arid Mediterranean Forests
title_sort short-term response of soil bacterial communities after prescribed fires in semi-arid mediterranean forests
topic controlled burn
low-intensity fire
prescribed fire
soil bacteria
soil resilience
url http://hdl.handle.net/10835/14519
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