Effects of Fires and Possible Restoration Interventions in Mediterranean Forest Ecosystems

A special issue of Fire (ISSN 2571-6255). This special issue belongs to the section "Fire Research at the Science–Policy–Practitioner Interface".

Deadline for manuscript submissions: 30 November 2025 | Viewed by 2515

Special Issue Editor


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Guest Editor
Department of Agriculture, University of Sassari, 07100 Sassari, Italy
Interests: fire; ecology; forest conservation; silviculture; fire ecology; vegetation; forest ecology; ecological restoration
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Special Issue Information

Dear Colleagues,

The growing risk of megafires, the loss of diversity, and soil degradation, especially in areas with a Mediterranean climate, could be monitored, and their impacts reduced, through the application of different forest management strategies. Fire and fire ecology are among the best-studied topics in contemporary ecosystem ecology. Understanding the effects of fire and its underlying principles is critical for reducing the risk of uncharacteristic wildfires and for the proper use of fire as an effective management tool in achieving restoration goals. In this context, a Special Issue is suggested that will consider the assessment of natural regeneration and fire effects after fires, the short/medium-term monitoring of natural regeneration, and soil and vegetation treatment techniques. It will also explore the reproductive capacity of natural regeneration post fire, focusing on resilient species and the role of forests as a key part of the carbon cycle. This includes different post-fire responses to varying severities of fire, the theoretical and practical concept of forests’ vulnerability to fire, and the consideration of post-fire forest management as a useful tool for restoration. The latter can modify stand structure while optimizing economic return, biodiversity, recreational value, and microenvironmental health. Clearly, fire can shape an ecosystem’s composition, structure, and functions by selecting fire-adapted species and removing other susceptible species. It releases nutrients from biomass and improves nutrient cycling, affects soil properties through changes in soil microbial activity and soil–water interactions, and creates heterogeneous mosaics that can further influence fire’s behavior and ecological processes. Fire, as a destructive force, can rapidly consume large amounts of biomass and cause negative impacts such as post-fire soil erosion, water runoff, and air pollution; however, as a constructive force, fire is also responsible for maintaining the health and perpetuity of certain fire-dependent ecosystems. The effects of fire on an ecosystem depend on the fire regime, vegetation type, climate, physical environments, and the scale of time and space in the assessment. More ecosystem-specific studies are needed, especially those focusing on the temporal and spatial variations of fire’s effects through long-term experimental monitoring and modeling. The integration of restoration practices into these studies will be essential for enhancing ecosystem resilience.

This Special Issue aims to collect the most interesting scientific contributions within the context of this broad and fundamental research topic to create a foundation for the application of post-fire restoration and recovery techniques in areas heavily damaged by fire.

Dr. Raffaella Lovreglio
Guest Editor

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Keywords

  • fire ecology
  • forestry
  • hydraulic forestry management
  • effects of fire
  • post-fire impacts
  • fire damage to vegetation and soil
  • recovery and post-fire restoration

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Published Papers (2 papers)

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Research

22 pages, 9708 KiB  
Article
Burn to Save, or Save to Burn? Management May Be Key to Conservation of an Iconic Old-Growth Stand in California, USA
by JonahMaria Weeks, Bryant Nagelson, Sarah Bisbing and Hugh Safford
Fire 2025, 8(2), 70; https://doi.org/10.3390/fire8020070 - 9 Feb 2025
Viewed by 1615
Abstract
Seasonally dry mature and old-growth (MOG) forests in the western USA face increasing threats from catastrophic wildfire and drought due to historical fire exclusion and climate change. The Emerald Point forest at Lake Tahoe in the Sierra Nevada of California, one of the [...] Read more.
Seasonally dry mature and old-growth (MOG) forests in the western USA face increasing threats from catastrophic wildfire and drought due to historical fire exclusion and climate change. The Emerald Point forest at Lake Tahoe in the Sierra Nevada of California, one of the last remaining old-growth stands at lake level, is at high risk due to elevated fuels and tree densities. The stand supports huge trees and the highest tree diversity in the Lake Tahoe Basin and protects important raptor habitat. In this study, we simulate forest response to vegetation management and wildfire to assess the impacts of four fuel-reduction scenarios on fire behavior and stand resilience at Emerald Point. Results: Our results demonstrate that restorative forest management can greatly improve an MOG forest’s resistance to catastrophic fire. Thinning to the natural range of variation for density, basal area, and fuel loads, followed by a prescribed burn, was most effective at reducing large-tree mortality, maintaining basal area, and retaining live tree carbon post-wildfire, while reducing secondary impacts. Conclusions: Our findings highlight the value of proactive management in protecting old-growth forests in seasonally dry regions from severe fire events, while also enhancing their ecological integrity and biodiversity. Full article
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16 pages, 7658 KiB  
Article
A Laboratory Study of the Effects of Wildfire Severity on Grain Size Distribution and Erosion in Burned Soils
by Deepa Sapkota, Jeevan Rawal, Krishna Pudasaini and Liangbo Hu
Fire 2025, 8(2), 46; https://doi.org/10.3390/fire8020046 - 25 Jan 2025
Viewed by 652
Abstract
Wildfires pose a significant threat to the entire ecosystem. The impacts of these wildfires can potentially disrupt biodiversity and ecological stability on a large scale. Wildfires may alter the physical and chemical properties of burned soil, such as particle size, loss of organic [...] Read more.
Wildfires pose a significant threat to the entire ecosystem. The impacts of these wildfires can potentially disrupt biodiversity and ecological stability on a large scale. Wildfires may alter the physical and chemical properties of burned soil, such as particle size, loss of organic matter and infiltration capacity. These alterations can lead to increased vulnerability to geohazards such as landslides, mudflows and debris flows, where soil erosion and sediment transport play a crucial role. The present study investigates the impact of wildfire on soil erosion by conducting a series of laboratory experiments. The soil samples were burned using two different methods: using firewood for different burning durations and using a muffle furnace at an accurately controlled temperature within 400 °C∼1000 °C. The burned soils were subsequently subjected to surface erosion by utilizing the constant head method to create a steady water flow to induce the erosion. In addition, empirically based theoretical models are explored to further assess the experimental results. The experimental results reveal a loss of organic matter in the burned soils that ranged from approximately 2% to 10% as the burning temperature rose from 400 °C to 1000 °C. The pattern of the grain size distribution shifted to a finer texture in the burned soil. There was also a considerable increase in soil erosion in burned soils, especially at a higher burn severity, where the erosion rate increased by more than five times. The empirical predictions are overall consistent with the experimental results and offer reasonable calibration of relevant soil erosion parameters. These findings demonstrate the importance of post-fire erosion in understanding and mitigating the long-term effects of wildfires on geo-environmental systems. Full article
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