DescriptionRural communities are among the hardest hit by wildfires. However, they are often considered as contributing to wildfire risk, as agricultural activities like burning of pastures or the use of machinery can potentially cause wildfires. Still, rural communities are key in making a systemic change for better fire management and policies. Presently, many socioeconomic, demographic, and environmental aspects of rurality are not considered and overlooked, whilst systemic change requires amongst others acknowledging and supporting rural communities and their role in wildfire management. In this goal, culture, communication and knowledge transfer are key factors. This session is a platform for research on rural challenges, social communication, culture and fire risk. Among the works, it is expected to receive proposals that touch on any of the following or other related topics.
- The challenges of rural communities, fire risk and communication.
- Proximity policies in rural areas and their communicative and cultural dimension.
- The coverage of the fires and the representation of rurality in the media.
- Relations between wildfires, rural communities and the media.
- Narratives about fires in rural settings and their social perception.
- Representations of rurality, cultural production, audiovisual and arts around wildfires.
- Studies on institutional communication, media or film around fires and rural areas.
- Community-based initiatives as response to rural challenges, such as wildfires.
- Cultural production, audio-visual and arts about wildfires and the rural.
DescriptionWildfires are often related to events like landslides, erosion, pest outbreaks or additional wildfires. The session will explore the relationship between wildfire and other (previous or subsequent) disturbances and environmental risks, as well as the influence of any form of management.
Wildfires are often related to events like landslides, erosion, pest outbreaks or additional wildfires.
The session will explore the relationship between wildfire and other (previous or subsequent) disturbances and environmental risks, as well as the influence of any form of management.
A map for modelling wildfire propagation is derived from a prototypical reaction- diffusion equation of the temperature field. We show that for a constant fuel concentration at the firefront, the fire-atmosphere coupling as well as the fuel inhomogeneity - when this last may cause an effective heat of reaction that is temperature-dependent- are two independent mechanisms that can cause the transition to chaos. In particular, chaos can already enter when the coefficient for the heat transfer from the fuel to the surrounding simply depends linearly on the temperature and when the effective heat of reaction depends indeed quadrat- icly. Moreover, when the concentration field at the firefront depends on time and it fluctuates between fully burned and unburned, then these fluctuations embody a third mechanism that may cause the transition to chaos even without any fire-atmosphere coupling or fuel inhomogeneity. In all the cases, the enter- ing of chaos is in the form of a logistic map. The application of this approach for setting an alternative method for real-time risk assessment is discussed in the conclusions.