by Johanna Strieck and Laura Nikinmaa
To round up an already eventful week at the EFI Bonn, EFI-Senior Expert Alexander Held took us (Laura Nikinmaa, Junior Researcher and Johanna Strieck, Communications Trainee) last Friday, February 24th to controlled heathland burning to the Drover Heide, nearby Bonn, to learn more on fire management and to get an idea of its practical application in the field. It was a great day for making your first experiences with controlled burning, and the compact small-scale operation on 10-15 ha allowed plenty of time for explanations. Sun exposure and wind speed was quite high and the level of humidity was moderate to high.
Across the forest sector in Europe there is broad consensus that resilient forests should regenerate naturally with multiple and different (and site specific) tree species. The more diversity in the regeneration, the better. With a forest use that follows natural processes. By these means, ecological and economic risks are reduced.
Across the forest sector in Europe there is also broad consensus that unbalanced deer densities have a negative effect on tree species composition through selective browsing, bark stripping and fraying.
However, there exists a conflict of interest in different European countries since many years: Should high deer densities for easier hunting be preferred – or should lower deer densities for forest development be favoured? A new dimension is added to this discussion when focusing on biodiversity. Biodiversity of forest systems is seen as an insurance and pre-requisite for resilience with regards to expected climate change. Considering that new dimension, the discussion exceeds the level of forest owner interests vs. hunting interests, it becomes a complex topic for society.
Marteloscope sites are like outdoor forest classrooms where the trees are numbered, mapped and measured. They can be used to train foresters and other interest groups how different silvicultural measures may affect forest biodiversity and to what extent. Software running on mobile devices allows virtual tree selection exercises and then displays the results. Participants can immediately see the ecological and economic consequences of their choices. Variations in exercise results initiate discussion and stimulate the exchange of experiences and learning.
Andreas Schuck from the EFI Bonn team is conducting training exercises with different stakeholders from the field of forestry, nature conservation, and academia. The latest training took place at the Falkenberg Marteloscope on 16th of October. It is located in the northern Vosges region of France. Twelve participants representing both forestry and nature conservation were introduced to Marteloscopes and their potential applications followed by a virtual tree selection exercise. The exercise asked for selecting habitat trees while removing high quality trees for economic return. Andreas Schuck and Frank Krumm from the Swiss Federal Institute for Forest, Snow and Landscape Research (WSL) moderated the training jointly with Loïc Duchamp from the Parc Naturel Régional des Vosges du Nord, France (PNRVN). The same virtual tree selection exercise was implemented by groups of two followed by a brief presentation of results and joint discussion. Habitat and economic valuable trees were then looked at more closely in order to challenge the groups on their decisions.
Utilising our forests with care and understanding will ensure that they continue to deliver everything we value now and for generations to come. Wood is a much needed resource and will continue to be in future. The film wise use of our forests: the integrative approach aims at presenting Europe’s forest in this context.