Planning to reduce the future risk of fire in Swinley Forest
This case study discusses efforts to reduce the future risk of wildfire in Swinley Forest, following a major wildfire in 2011 that caused significant damage and costly containment efforts. The fire spread quickly in dry conditions, aided by ladder fuels in young pine stands, and resulted in the closure of nearby infrastructure, evacuation of homes, loss of biodiversity, damage to timber and conservation areas, and substantial clean-up costs. Management objectives for the forest include enhancing biodiversity, recreation, carbon storage, and groundwater supply, while also increasing resilience to wildfires without compromising these goals.
To address the increased likelihood of wildfires due to climate change—projected to rise by 10-50% by the 2080s—several risks and vulnerabilities are identified, particularly the susceptibility of young coniferous woodland on heathland. Future wildfire risks are heightened by wetter, drier conditions, and high visitor pressure, which can increase ignition sources and fire spread.
The planning approach emphasizes the importance of creating a diverse and resilient forest structure. Key principles include establishing fire breaks, managing vegetation to reduce fuel loads, using varied silvicultural systems, fragmenting high-risk habitats, and maintaining trees in groups. Adaptation measures implemented after the fire include increasing species and structural diversity, installing new fire belts with species such as sweet chestnut, birch, and oak, and creating new rides and ponds to act as fire breaks and habitat features. These modifications help reduce fire intensity, improve suppression, and support biodiversity.
Monitoring and assessment are ongoing, with reviews scheduled every decade and collaborative research undertaken to improve wildfire prevention and management. Lessons learned from the 2011 fire have led to the development of guidance, training programs, and integrated planning approaches that incorporate wildfire resilience into forest design.
The overall aim is that, as climate conditions continue to warm and dryer spells become more frequent, the woodland design will contain wildfires more effectively, reducing damage and impacts on the local community. Well-established contingency plans and adaptive management are key to maintaining resilient, multifunctional forests in the future.
[https://cdn.forestresearch.gov.uk/2022/05/UKFSPG026_CS6_Swinley.pdf Planning to reduce the future risk of fire
in Swinley Forest] (en)
Number of pages: 3
Target countries: United Kingdom
Key takeaways
- Implementation of wildfire resilience measures reduces risk of future fires in Swinley Forest
- Adaptation actions such as increasing species diversity, creating fire belts, and designing landscape features to account for wind and topography aim to mitigate wildfire spread and impact.
- Forest management has shifted to actively reduce fuel loads and fragmentation to prevent high-severity fires
- Strategies including regular timber harvesting, creating fire breaks, and fragmenting high-risk species and habitats have been adopted to lower fire intensity and spread potential.
- Creating wetland habitats and standing water acts as a firebreak, enhancing landscape resilience
- The addition of new ponds and wetland areas in and around the forest helps slow fire spread, supports biodiversity, and provides natural firebreaks.
- Continuous monitoring and review of wildfire planning are integral to adaptive forest management
- Decade-wise assessment, research, and training initiatives are improving resilience strategies, informed by lessons learned from past fire incidents.
- Designing diverse woodland structure and management practices diminishes vulnerability to crown fires
- Utilizing varied silvicultural systems, managing vegetation, and fragmenting large uniform stands help reduce the risk of severe wildfire spread.
- Climate change projections indicate increased wildfire risk, prompting proactive adaptation efforts
- Warmer, drier conditions forecasted for the UK by 2080s heighten wildfire likelihood, necessitating landscape adaptation to safeguard ecological and community interests.
Sources
- Planning to reduce the future risk of fire
in Swinley Forest - - https://cdn.forestresearch.gov.uk/2022/05/UKFSPG026_CS6_Swinley.pdf
