New SUPERB policy brief: forest restoration as a pillar of Europe’s climate and biodiversity action

Our newly released policy brief brings together scientific knowledge and hands-on experience from our 12 large-scale forest restoration initiatives across Europe, offering timely and practical guidance for policymakers, forest managers, and other key stakeholders.

The brief underlines that restoring forests is not a single action, but a long-term, multi-phase process. Effective restoration typically moves from assessing initial conditions and drivers of degradation, through planning and implementation, to long-term maintenance, monitoring, and evaluation. Success depends on flexibility, adaptive management, and strong engagement with multiple stakeholders, including forest owners, local communities, policymakers, and practitioners.

In the face of climate change, increasing disturbances, and shifting socio-economic demands, our policy brief stresses the need for future-oriented restoration targets. These should focus not only on biodiversity, but also on the ecosystem services forests provide – such as carbon storage, water regulation, and recreation – and the ecological processes that sustain them. Because the benefits of restoration often become visible only after decades, our brief highlights the critical importance of sustained funding for monitoring and adaptive management.

Drawing on insights from our 12 large-scale forest restoration demonstration areas across Europe, our experts identified shared challenges despite the diversity of forest types, ownership structures, and management traditions. Key issues include high ungulate browsing pressure that damages young trees and increases restoration costs, difficulties in engaging private forest owners – who manage around 60% of Europe’s forests – and constraints related to forest reproductive materials, such as shortages of climate-adapted seeds and seedlings.

To address these challenges, the brief puts forward clear and actionable recommendations. These include increasing flexibility in restoration objectives and timelines, adapting hunting and forest reproductive materials legislation, and strengthening monitoring of browsing impacts. Further recommendations suggest improving dialogue among forest managers, hunters, and communities, and supporting nurseries through long-term planning and investment. Our experts also call for contingency planning to cope with natural disturbances and for the strategic use of pioneer and climate-adapted species to build resilient mixed forests.

By translating lessons learned from real-world restoration efforts into policy-relevant recommendations, this policy brief provides a valuable roadmap for scaling up forest restoration across Europe. At a time when resilient forests are more important than ever, it offers concrete guidance to help turn ambitious restoration commitments into lasting outcomes.

Reference: Filipek, S., Jacobs, S., Nabuurs, GJ., Barnkob Lehrmann, M., Bílek, L., Campana, F., Cotten, L., de Dios, J., de Graaf, M., de Guerry, B., Đodan, M., Galić, Z., Gallego, R., García, R., Gómez Fernández, M., Granberg, Å., Hoch, T., Jactel, H., Janzen, L., Lastra González, D., Lindner, M., Locatelli, T., Marušák, R., Mijatović, L., Nicoll, B., Oleagordia, Í., Olsen, H., Orazio, C., Olrik, D. C., Raats, L., Saini, M., Schmidt, C., Svoboda, M., Svensson, J., Tognetti, R., Vacchiano, G., Zorić, M., Zotta, M., Schatzdorfer, E. (2025): Common challenges in implementing forest restoration: Experiences from 12 large-scale demonstration areas across Europe. Policy brief. https://doi.org/10.36333/rs15

Three steps to forest vitality: How restoration is taking root in the Netherlands

Restoration Story by SUPERB Dutch demo

In the Southern Netherlands, forest revitalization is underway in Kronenbergse Bos, where forest experts are reversing decades of soil degradation. In this region, many forests were planted around the year 1900 on nutrient-poor sandy soils, primarily with Scots pine for the mining industry. Today, they face acidification, drought, and climate extremes, weakening forest resilience and biodiversity.

As part of the SUPERB project, Bosgroep Zuid Nederland is taking the following steps to restore forest ecosystem and support it in adapting to changing climate conditions:

Water system recovery
Water systems are being restored to counter long-term soil drying, one of the major threats to forest vitality in this sandy, drought-prone area.

Tree species diversification
Thousands of rich-litter tree species – such as sweet cherry, linden, hazel, and Norway maple – were planted. Their easily decomposable leaves improve soil fertility and promote biodiversity.

Soil restoration
Over 60 hectares of finely ground rock dust were spread to replenish depleted minerals, restoring acidified and dried-out soils.

Many newly planted trees have already survived their first dry summer, marking a hopeful sign for this forest’s resilient future.

Watch the video from the demo site to see the restoration work up close

How Europe’s restoration projects are shaping national plans

Across Europe, there are 71 restoration sites — from Ireland’s peatlands to Romania’s forests. Since 2021, SUPERB and its sister projects MERLIN, REST-COAST and WaterLANDS have been working on the ground to restore forests, wetlands, rivers, and coasts, all funded under the Green Deal. 

Now the projects’ findings are helping countries draft National Restoration Plans (NRPs) — a key requirement under the EU’s new Nature Restoration Regulation. 

To support this process, over 100 experts — scientists, policymakers, and local stakeholders — met at the European Commission on 10 March 2025. The meeting focused on what has worked in practice, where challenges remain, and how field-based experience can help Member States design effective NRPs. 

The report Supporting the Development of National Restoration Plans brings together what’s been learned so far — practical tools, examples, and ideas that can help shape national restoration plans, including from SUPERB’s side: 

  • A soon-to-launch Forest Knowledge Gateway with guides on tree selection, funding, and more. 
  • Case studies from SUPERB’s 12 demonstration sites. 
  • Policy maps showing where national laws align or clash with restoration goals. 

With draft NRPs due by September 2026, SUPERB’s work aims at helping national partners to implement these tools — from policy alignment frameworks to site-specific restoration strategies tested across its demonstration area network. 

Read on the full report here

Photo: Anat art / Adobe Stock

10 Things We Can All Learn from the Evolution of Forest Restoration Initiatives in Europe 

By Maitane Erdozain Ibarra, CTFC & Rina Tsubaki, EFI.

Forest restoration is far more than a modern buzzword—its history runs deeper than most realize. Yet, despite decades of effort, the lack of proper documentation of successes and failures has prevented us from truly learning from the past.  

Today, the global push for forest restoration is stronger than at any point in history. Initiatives like the European Nature Restoration Law are sparking hope and action. Now, more than ever, we need to look back and reflect on how forest restoration efforts have evolved, what sparked change, and what lessons past and present initiatives can offer. That will empower us to make forest restoration efforts more effective, impactful, and grounded — both now and in the future. 

A Europe-wide Study to Explore Trends, Patterns and Drivers of Forest Restoration 

Led by Maitane Erdozain and Sergio de Miguel from the Science and Technology Centre of Catalonia (CTFC) and the University of Lleida (UDL), we published a study that examined narratives from 32 forest restoration experts in 18 European countries to uncover the history of forest restoration in Europe. The study asked experts to delve into six key areas—social, economic, political, technical, environmental and legal— to understand different drivers that shaped forest restoration across Europe. 

The analysis revealed fascinating trends and patterns. Early restoration efforts in central and southern Europe often arose in response to crises like natural disasters and timber shortages. While these initiatives were effective for erosion control and timber production, they often relied on monocultures and short rotations, limiting ecological benefits. The geopolitical upheavals of the 20th century pushed timber production to the forefront, with centralized management that usually favored productivity over biodiversity. Since the 1990s, however, we have started to see a shift: restoration now strives to balance environmental, social, and economic goals, driven by a growing appreciation for the multifunctionality of forests. 

Lessons from Successes and Failures in the Past and Present 

So, what are the drivers that shaped the development of forest restoration in Europe that we can learn from both the past and present?  

Here are 10 lessons we learned: 

  1. Natural disasters as catalysts: Major natural disturbances (floods, shifting sands etc.) triggered early restoration efforts in many countries. Over the past decades, environmental crises (climatic, biodiversity, water etc.) have also influenced the type of restoration that is conducted. 
  1. Geopolitical turmoil forces change: Wars greatly contributed to forest degradation through direct destruction and overexploitation, but they also prompted large-scale afforestation campaigns to address timber shortages. These initiatives shaped today’s forests, showing how crises can simultaneously hinder and drive restoration progress. 
  1. Forest ownership and governance: Centralized forest governance often enabled large-scale restoration success, while fragmented ownership often slowed down restoration progress. Innovative governance mechanisms are needed to address the issue of fragmentation, where many small landowners hold land rights.
  1. Funding mechanisms: Lack of funding has been a longstanding obstacle, but there are examples of strong and stable funding mechanisms throughout history.  Although EU funding has been instrumental in shifting the types of restoration implemented, there is an urgent need for innovative funding sources (e.g., private) and mechanisms that are long-term and resilient to political and market fluctuations. 
  1. Market fluctuations: Shifts in demand for products like timber and fuelwood significantly shaped restoration strategies. Future efforts should integrate marketable benefits from different ecosystem services to sustain landowner engagement and secure lasting outcomes. 
  1. The role of sociodemographics and social values: Rural abandonment tends to reduce land-use conflicts but can lead to new challenges like unmanaged forests. Increasing environmental awareness and recreational demands from society have diversified restoration objectives. These findings underscore the need for active rural engagement and public education to balance priorities. 
  1. Policies as guiding forces: Strict yet balanced national policies that integrate ecological protection with socioeconomic benefits, alongside ambitious international policies and the creation of institutions specialized in restoration, have been pivotal in driving progress and inspiring coordinated restoration strategies. 
  1. Converging drivers accelerate change: Restoration succeeds when environmental, social, economic and political factors align. Historical examples show that isolated drivers rarely catalyze change; a multidimensional approach is essential to create transformative impacts. 
  1. Conflicts hinder progress: Competing objectives, such as agriculture versus forest land uses, or timber production versus conservation, remain major obstacles. Addressing conflicts—both among stakeholders and policies—requires a holistic landscape approach that simultaneously addresses many challenges that society faces. 
  1. Short-term fixes, long-term risks: Lastly, the historical accounts demonstrate that restoration efforts with a short-term vision often create future vulnerabilities. Long-term thinking that acknowledges the interconnectedness of our systems is crucial for successful forest restoration that benefits ecosystems and communities.  
Infographic by Shanqing Gao, EFI

Embracing the Past and Building a Better Future

From this study, we learned the importance of blending historical insights with contemporary strategies to guide more sustainable and impactful forest restoration. By learning from past successes and failures, policymakers and practitioners can avoid repeating mistakes and leverage effective solutions. We hope the lessons uncovered in this research will be crucial for implementing the new Nature Restoration Law to ensure its ambitions are translated into large-scale, real-world impact across Europe. 


Reference: Erdozain, M., Alberdi, I., Aszalos, R. et al. The Evolution of Forest Restoration in Europe: A Synthesis for a Step Forward Based on National Expert Knowledge. Curr. For. Rep. 11, 4 (2025). https://doi.org/10.1007/40725-024-00235-3

Read the full study here.

Restoring forests on poor sandy soils

Restoration Story by Silke Jacobs & Lisa Raats

When visiting the Dutch SUPERB demo area at the end of January, one could see a grayish dust cloud coming from a helicopter that was flying over the forests. The helicopter was covering the forest soil with rock dust: a much-needed measure in forests growing on dry sandy soils.

The forests in the Dutch demo area depend on very degraded sandy soils which are poor in nutrients, dry and have a low pH, meaning stronger acidity. This is not what the trees are hoping for in terms of environmental conditions. While walking around, one can notice that the trees, mostly Scots pine, are quite small both in height and diameter. They are longing for a healthy forest soil.

Within SUPERB, Bosgroep Zuid Nederland will implement measures to make the forests more vital and healthier. The aim is to treat approximately 60 hectares of forests owned by 16 private forest owners. It was a huge task to track these people and involve all of them in the project.

But after this hard work and conducting research, one of the restoration measures has finally started. The helicopter is thus spreading the rock dust in the area. Rock dust contains nutrients that the forest soil could use and gradually releases calcium, magnesium and potassium.

We had a great viewpoint to see the actual restoration activities being carried out by the helicopter. It was impressive to watch! The route flown by the helicopter can be visualized after the flight and we have been told that it is very accurate thanks to a skilled pilot.

The helicopter stayed in the air the whole time we watched it, except during a short break to refuel. It has also lowered so that a shovel could add the rock dust again to its basket for another flight spreading dust over the forest.

In the picture above you can see the big pile of rock dust that still needed to be spread. After flying a couple of hours, everything was gone and it’s time for the rock dust to do its work within the soil.

Alongside the use of rock dust, another implemented measure includes planting rich litter tree species in this area. The intention is for species such as hazel, lime and maple to gradually become more prominent contributors to the leaf composition in the litter layer. As these leaves decompose, they release nutrients into the soil, replenishing the system with essential elements over time. Additionally, this results in a more diverse forest in terms of species composition.

The experiences gained from both restoration actions and involving forest owners and other stakeholders can be valuable for future forest restoration projects, especially considering the prevalence of other degraded sandy forest soils in the Netherlands.

Forests: why “doing nothing” can’t be the cure

#RestorationStory by Maaike de Graaf

A few weeks ago, I visited my son who is studying in Scotland. He took me for a walk in the Cairngorns, the UK’s largest National Park, which is a fantastic area. Only afterwards, I realised what we have lost in our densely populated Netherlands: the decreased diversity in landscapes, gradients and biodiversity became painfully apparent. For instance, in Scotland, I have seen lichens with the size of a fist, at the end of the branches of oaks. I have never seen that in my home country. Most likely this is due to air pollution as lichens are very sensitive to this. I suppose I do not have to remind you of the atmospheric nitrogen concentrations in the Netherlands, nor of the acidic rain in the past. 

Oak moss (photo: Rudolphous – Wikimedia Commons)

But why am I telling you this? I have been working in several ecosystems as a restoration ecologist but have not seen such a large public dispute on the need of rehabilitation as in the field of forests. It seems that we have 17 million forest managers in Holland, all having a strong opinion on forest management. It must be our country spirit, having strong opinions, as we also have 17 million soccer coaches. Most of these millions of forest managers are convinced that our forests are natural by origin (which they are not). As a consequence, they consider ‘doing nothing’ to be the best way to improve the quality and health of our forests. They completely ignore human impact on forest, which we apply not only by planting, management, and recreation, but also by invisible processes such as impacts of climate change and hydrological changes. Acidic and nitrogen deposition have significantly accelerated the weathering of sandy soils: in the last decades, the same amount of calcium and magnesium have leached from the top of the soil as in the 17.000 years before. And is still continuing. In Brabant, we often measure pH-values below 3. To better understand this: pH-value 3 is compared to vinegar. Imagine being a tree in such conditions: your roots develop poorly, and your capacity to take up nutrients and water is seriously hampered. Your vitality sucks, and you will feel a little unstable. On top of this, you would have to deal with lowered ground water tables, imbalanced nutrient availability (due to nitrogen deposition) and climatic changes. You are stressed by multiple factors. And in addition, you struggle with the loss of connectivity to other forests and pollution by light and sound, all factors that diminish the size of suitable habitat for forest plants and animals.  

Diversifying Pine forest in the Dutch demo: Maaike and her team cut some trees, planted others (e.g. Tilia cordata, Quercus robur; with bamboo as wild life protection bamboo)
Diversifying Pine forest in the Dutch demo: Maaike and her team cut some trees, planted others (e.g. Tilia cordata, Quercus robur; with bamboo as wild life protection bamboo)

Personally, I do not believe that ‘doing nothing’ will be the cure for large scale forest recovery. Even if we were to stop forest management, we humans still affect the forests through the processes I have explained above. This is precisely why I believe in using all knowledge, tools and means we have to help our forest to survive. This entails reinstalling higher ground water tables, cutting, planting, leaving dead wood. Introducing missing species, adding rock dust to complement leaching. We have to do it! And I am happy to see it is being done in the Netherlands and beyond, with a great variation in management being applied. Because I also believe that when the future is uncertain, we need to diversify risks, and try different approaches to find out what works and learn from practice. 

So why are many people in resistance to forest management, even in forests that should serve multiple purposes? One of my Belgian colleagues recently said that urban societies are alienated from forest practice:  Her words were: “They think the forest is their pet”, which I can truly relate to. I can understand that you don’t want to cut your pet, but why don’t you want to pamper it either? Why not revitalizing the forest, supporting it to be healthier?

Demo in Groote Heide

  

Here we forest practitioners should dare to look at our own acting. We send different messages, and we are thereby confusing our audience. We tell them about small-scale forest management in the Netherlands, reducing clearcut areas to less than 2 times the tree height. Meanwhile we proudly present pictures of helicopters spreading rock dust, in order to reduce acidification impact. Small-scale management? Such images convey the implicit message of large-scale actions, in a way that many associate with noise, air pollution and nitrogen emissions. Is this how we understand forest restoration? Let us be aware of the messages we send in our enthusiasm on forest management and put them in perspective. Let us work against the Zeitgeist pushing us to convey simple stories, and instead tell of the complex reality of gradients, nuances, and diversity, that needs a variety of solutions. 

So, to conclude, we have work to do. Both in restoration and in communication.  


On April 14th 2023 Maaike presented this column in Dutch language to the KNBV, the Netherlands organisation of Forest Managers. The column is also published at their website.  

All photos except oak moss by Maaike de Graaf