Siirtymistuleen

Siirtymistuleen is a Finnish term that translates to "transition fire" or "transition burn." It refers to a controlled fire used in forest management, specifically for regenerating certain types of forests. This practice is often employed in boreal forests where some tree species, such as Scots pine, benefit from fire to release seeds and prepare the ground for new growth. The fires are carefully managed to ensure they achieve the desired ecological outcomes without causing excessive damage or spreading uncontrollably.

The primary purpose of siirtymistuleen is to mimic natural fire cycles that are essential for the long-term health and biodiversity of these ecosystems. Natural fires can clear out undergrowth, reduce competition, and create a nutrient-rich ash layer that promotes seed germination. By applying controlled burns, foresters can replicate these benefits in a more predictable and safe manner. This helps maintain the prevalence of fire-adapted species and supports a diverse range of plant and animal life that depend on these post-fire conditions.

The implementation of siirtymistuleen requires extensive planning and expertise. Factors such as weather conditions, fuel load, and the specific characteristics of the forest stand are carefully assessed before a burn is initiated. The goal is to create a mosaic of burned and unburned areas, reflecting the patchy nature of natural fires. This approach is part of a broader strategy of ecosystem-based forest management, aiming to maintain natural processes and enhance forest resilience.