Forest restoration is not all roses – it comes with a range of challenges, too. Therefore, implementing and upscaling restoration measures is essential for their successful restoration. In our upcoming webinar “European forest restoration: urgently needed but where and how?” organized by SUPERB and IUFRO‘s Task Force ‘Transforming Forest Landscapes for Future Climates and Human Well-Being’ we will discuss how the habitat status of Europe’s forests is currently assessed, and what role data provided by National Forest Inventories can play to inform about forest restoration in Europe. We will also take a deep plunge into our SUPERB demo areas and discover the real-life challenges they are facing to implement restoration on the ground.
Join us on 8th February 4-6pm CET and register here.
In the Vysocina region, mature Norway spruce stands were heavily infested by bark beetles. It resulted in massive salvage logging and an abrupt decrease of the area of older coniferous stands by 20%. In one of the most affected forest districts, Ledeč nad Sázavou (Forest of the Czech Republic; Lesy České republiky s.p.), salvage felling in the period 2018–2022 amounted to 2 219 333 m3. Affected trees were continuously removed, and sites were prepared for restoration. The main restoration measures are natural and artificial regeneration (planting and seeding) of site-specific tree species of local provenances (following national legislation – decree 456/2021) and subsequent weed control. In the Czech demo areas, planting took place in the spring and autumn of 2022. Protection through the fencing of broadleaved and Abies alba was necessary to prevent game browsing. The main tree species used for reforestation are Quercus petraea, Fagus sylvatica, Acer pseudoplatanus, Picea abies, Alnus glutinosa, Pinus sylvestris and Prunus avium. The design of reforestation is based on site-specific conditions, the mosaic of site types and targeted tree species composition. In the coming years, we plan on improvement of afforestation in case of failures, mechanical weed control, and consequent use of repellents outside the fenced areas.
During a trip to Scotland in September, our colleagues from Wageningen Research made a field visit to the restoration sites in Queen Elizabeth Forest Park (QEFP) guided by demo leader Bruce Nicoll. Within the Scottish demo, one of the measures is to transform monocultures of Sitka spruce to continuous cover forestry (CCF), besides diversifying forest’s age structure and species composition. The second restoration activity will be along the river, restoring the riparian woodlands and implementing Natural Flood Management techniques (e.g., leaky dams, timber bunds) aimed at reducing flood peaks. The third restoration activity is high elevation planting. The field visit was a great way of getting to know the Scottish situation. The next day the group was welcomed at the office of Forest Research, where they also met Tom Locatelli. During the day they discussed the SUPERB activities ahead and among them was the workplan which is now finalized.
At the beginning of November, the Scottish demo held its stakeholder workshop. Planned restoration activities were discussed in the field during an extended visit to representative sites within QEFP. The workshop was a very enjoyable experience for the Forest Research (FR) and Forestry and Land Scotland (FLS) SUPERB teams, as well as for the participants, who asked very many questions and engaged in discussions about SUPERB, QEFP, and upscaling forest restoration in Scotland and the UK. Given the dense content and structure of the workshop, and the multiple requirements from various WPs, the changes to allow extended forest visits introduced some logistic challenges that required careful planning and timing of the numerous workshop activities. Thanks to the positive and engaging spirit of QEFP’s stakeholders, all the project requirements for the workshop were achieved very satisfactorily. The FR and FLS team are looking forward to welcoming their participants back to QEFP for a full-day visit to forest restoration sites in QEFP during the summer of 2023, and to expanding their stakeholder network and activities during 2023.
The Forest Restoration Talks organized jointly by SUPERB and IUFRO‘s Task Force ‘Transforming Forest Landscapes for Future Climates and Human Well-Being’ investigate forest restoration questions from diverse scientific perspectives, with alternating focus on the global and European levels. The series brings together researchers, practitioners, NGOs, policy makers and other interested stakeholders to explore practical forest restoration approaches, experiences and challenges worldwide.
You can find the complete schedule of the upcoming events below. To watch our previous webinars, click here.
8th of February 2023
Gert-Jan Nabuurs, Wageningen University, Iciar Alberdi, Spanish National Research Council, Jürgen Bauhus, University of Freiburg, Harald Mauser, European Forest Institute & Sara Filipek, Wageningen University
”European forest restoration: urgently needed, but where and how?”
Focused on “Biodiversity as a key asset for forest restoration in Europe”, the webinar will feature KU Leuven’s Bart Muys, main author of the study “Forest Biodiversity in Europe“, which will be presented to participants. The study focuses on how we can effectively maintain and enhance forest biodiversity in Europe. It looks at what is at stake, the current external and internal threats to forest biodiversity and makes recommendations for how we should respond – both in terms of forest management, and also in terms of the policy and finance landscape.
by Bas Lerink, supported by Judit Torres and Iñigo Oleagordia Montaña
The sun peaks over the roof of Cathedral Santa Maria as I make my way downtown the city of León. The huge stained-glass windows light up in red and yellow, as a promise for a hot day. I am meeting our Spanish SUPERB colleagues in their CESEFOR office, to catch up with recent activities in our SUPERB demonstration site. It is great to meet again with the demo representatives Judit Torres (CESEFOR) and Iñigo Oleagordia Montaña (Junta CyL) and to get to know Rafael, the forest manager of the El Bierzo sites. A lot has happened since we last met, so we take the time to discuss the events of the past weeks.
The Castilla y León demo gives a fascinating insight in the relationship between men and bear. The aim of the demo is to improve the habitat of the brown bear, while simultaneously engaging the rural population. If not challenging enough, there is always the lurking danger of forest fires in the region. Two weeks ago, Judit organised the demo’s stakeholder workshop, uniting friend, and foe of the bear. They discussed the forest restoration measures planned by the local partners, with room for adjustments. The presence of the brown bear can incidentally trouble activities of the local population, especially for beekeepers. But they already found a solution by subsidising e.g. electric fencing around the beehives, to fend off curious bears with a sweet tooth. In the coming weeks, the workplan will be finalised, with detailed descriptions of the restoration measures on specific sites, and I am already curious to read them.
Meanwhile, we finish our discussions in the CESEFOR office and hit the road to El Bierzo region, where the sites are located. We pick up Santiago, forest ranger of the Igüeña site, which we will visit first. In the selected stands, our local partners will carry out silvicultural measures to improve the habitat of the brown bear. This involves thinning out dense Scots pine (Pinus sylvestris) stands to create easier passage, while in Pyrenean oak (Quercus pyrenaica) stands trees are selected to increase acorn production. In recently burned stands, they plan enrichment planting to provide new shelter. Judit drives us in CESEFOR’s 4×4 Landcruiser to the different stands of the Igüeña site.
The stands have been chosen based on a gradient of degradation, e.g. from severely degraded, up until the ideal reference situation. We visit a recently burned stand, where the blackened trees clearly indicate where the fire blazed. Where possible, they plan some enrichment plantings to help this stand to recover. Iñigo explains how current management shifted from creating large ‘cortafuegos’ (long clear-felled strips), to decreasing the available fuel in the stands. This was decided because the cortafuegos deform the landscape, have to be maintained a lot and are often not effective for crown fires.
The middle section of the chronosequence consists of Pyreneanoakstands with overdue management. Santiago takes us to a dense stand with very slender trees and a blanket of oak root regeneration, prone to fire. Right next to it is a reference stand, where low thinning and enrichment planting of e.g. rowan and whitebeam (Sorbus aucuparia and S. aria) were successful. Santiago shows us a picture that he took here 20 years ago of a big capercaillie, which were once abundant in these forests. The end of the chronosequence is a fantastic mature stand of Pyreneanoakwith many microhabitats. The trees have large crowns, capable of producing lots of acorns for the brown bear and the forest structure is resilient to forest fires. Iñigo is clear on his goal: ‘In the future, most of the forest area of El Bierzo will look like this’.
Happy with what we have seen, we head for an old molino where Santiago used to mill back in the days, but which is now transformed to a restaurant. We enjoy a tasty lunch with local ingredients and then drive up in the mountain range to see the Corullón site. In the midst of a 200-hectare soto (orchard) of sweet chestnut trees, there is a burned patch of a few hectares. Here, our local SUPERB team will plant new grafted chestnut trees to increase the production of sweet chestnut. With this measure, Judit, Iñigo and their colleagues aim at engaging the rural population, as sweet chestnuts are valued a lot by the local people.
While the sun sets behind the Corullón mountain ridges, we call it a day. In the past 12 hours, we have seen the challenges that the Castilla y León demo has to face. However, above all, we have also discovered great opportunities to restore the forest lands, for men and bear. This demo is one to watch!
Featured image: SUPERB demo area with sweet chestnut orchard on the right side, with holm oak on the left (southward facing) side of the slope (photo: Bas Lerink)
Targeting researchers, practitioners, NGOs, policy makers and other interested stakeholders, the webinar series will investigate forest restoration questions from diverse scientific perspectives, with alternating focus on the global and European levels. This includes exploring practical forest restoration approaches, experiences and challenges worldwide.
Taking place on Wednesday, 9 November from 16:00-17:30 CET, the first webinar features forest restoration specialistJohn Stanturf as a speaker, discussing the topic “If nature is the solution, what is the problem? A perspective from forest landscape restoration”.
Following webinars will take place every second Wednesday of the month at the same time. Save the date for the second webinar on 14 December, when KU Leuven professor Bart Muys will discuss “Biodiversity as a key asset for forest restoration in Europe“!
This 3rd of October is World Habitat Day! To celebrate the occasion, SUPERB coordinator Elisabeth Pötzelsberger, Head of Resilience Programme at the European Forest Institute (EFI), explained the importance of “prestoration” – the combination of restoration and climate adaptation – for resilient and functional forest habitats. She discussed how it differs from classical restoration approaches, highlighted its relevance to the new EU Nature Restoration Law and listed concrete examples of how prestoration is being applied within the SUPERB demonstration areas in Germany and in the Czech Republic.
What is prestoration? How does it differ from more classical approaches to forest restoration?
Why do we actually restore restore forests? There are large restoration needs, for example, when forests are impacted by hot temperatures, forest fires, and also by prolonged droughts that will also cause outbreaks of pests and pathogens, which can kill forests on large landscape levels. But also to make our forests more diverse again in Europe and to bring back important habitats that, for example, are associated with deadwood and old-growth elements, which have become rare across Europe.
When people talk about restoration, they might think of different objectives that may be located along the so-called restoration continuum. The classical restoration continuum ranges from fighting the drivers of degradation over remediation of ecosystem functions up to full ecological restoration, where species diversity, ecosystem structure and function are restored. However, climate change adds a new dimension to this restoration continuum. Therefore, the consideration of adaptation in restoration, what we can call prestoration, is becoming so important.
Forest researchers and practitioners are therefore supporting this concept, which means the combination of restoration ambitions with the need for adaptation. Adaptation of tree species composition and forest structure in order to increase the resilience of forests under climate change and also ensure forest functioning in the future.
Can you give a few examples that illustrate how prestoration works?
There are already good examples where we are practising prestoration, like in our two SUPERB demonstration areas in central Europe – in Germany (North Rhine-Westfalia) and in the Czech Republic. These regions are naturally dominated by beech forests but some decades or centuries ago have been converted into Norway Spruce plantations.
Now with prolonged droughts, these Norway Spruce forests have been severely damaged by subsequent bark beetle infestations. In SUPERB, we are not only restoring them back into native beech forest ecosystems but already looking into more drought-tolerant habitat types like oak/hornbeam forests and mixing them with even more broadleaved tree species to increase forest resilience and functionality also for future climate conditions.
What challenges does prestoration entail?
Prestoration is neither simple nor straightforward. With climate change, we are really entering uncharted territory. We will be and already are experiencing conditions that we have never experienced before. Also our native forest species are not adjusted to these new conditions. Looking for more adapted species in the Mediterranean may be an option. However, there is also large uncertainty associated with it because we don’t know, for example, whether these species will be truly suited to the climatic conditions that will occur in 100 years’ time, because there is still a broad range of possible climate change scenarios.
And then there is another challenge: forests do not consist only of trees. There are many other plant and animal species that live in these forests and are also dependent on these tree species. So, will they be fit to survive in these climatic conditions and will they be happy to thrive in these forests which may consist of different tree species than today?
What are the prerequisites for successful prestoration?
Due to this large uncertainty, in SUPERB we are convinced that we need flexible approaches and to revisit decisions as we go along. And of course, with SUPERB we are also providing continuous scientific support which will allow us to find out which are the right species compositions and how we can assist the migration of other plant and animal species across the landscape so they can find in the future forest habitats and climate conditions that they are adjusted to.
How is prestoration relevant to the new EU Restoration Law?
So this prestoration concept, this idea of integrating adaptation into restoration, will be of crucial importance if we want to achieve the overall goal of the new EU’s Biodiversity Strategy and the EU’s Forest Strategy, which is to restore European biodiversity and continuous provision of ecosystem services in the future.
These Biodiversity and Forest Strategies of the EU now will be supported by the Nature Restoration legislation which is currently being debated at the EU level. It remains to be seen how much space will be given actually to adaptation in this new restoration proposal.
But already experiencing this high-speed climate change, I think it is pretty clear: we have to look ahead and not backwards if we want to be prepared for what is coming.
The first workshop for SUPERB in Denmark at our demo site in Northern Jutland. Eleven stakeholders took part in the workshop, which spanned over a whole Saturday in the beginning of September. The participants included forest rangers, local communities, visitors, nature watchers, riders and employees from the local national park. The biggest concern for most of the participants was the preceding monitoring work for the project. They were worried that the endangered and vulnerable species in the area would not be taken in to consideration before the restoration actions. The other big topic discussed was the recreational use of the area and how to guarantee access to it. Stakeholders’ concerns were specifically related to the restoration of natural hydrology, which could lead to flooding of trails used for riding and hiking. We realized that most stakeholders are interested in the use and facilities of the area, and less in biodiversity conservation and forest management. Finally, we aimed at establishing a good relationship with the participants (and with this the local community) so nobody felt left out or not heard. This together with trying to implement the wishes from the stakeholders will be challenging for the project, but it is also very inspiring.
As part of the workshop, I was contacted by a journalist from DR (Danish Broadcasting Corporation). DR is the oldest and largest media enterprise in Denmark. I was interviewed for a radio interview and based on this, an article was prepared and published on their national news site (dr.dk). The interview (in Danish) mainly focused on nature and biodiversity in the restoration area.