Written by Andrew Sowerby, Operations Director at Bronwin & Abbey
About the author: Andrew Sowerby graduated from the University of Aberdeen in 2001 with a degree in Forest Management. He worked on the public forest estate in Wales for 15-years delivering long-term forest plans, timber harvesting and operational policy development. He manages private sector woodlands throughout Wales with colleagues at Bronwin & Abbey Ltd. He is an advocate for the forest sector in the UK and supports PEFC as a Director and the Institute of Chartered Foresters as their current elected President.
Sustainable forest management lies at the heart of responsible woodland ownership. It ensures that forests are managed in a way that protects environmental, social and economic values. Sustainable forest management delivers enhanced biodiversity; timber production; carbon sequestration and storage; the livelihoods of those who live and work in the woods. Sustainable forest management is guided by the UK Forestry Standard (UKFS) and the UK Woodland Assurance Standard (UKWAS), with the latter being endorsed by leading global certification schemes, the Programme for the Endorsement of Forest Certification (PEFC) and the Forest Stewardship Council™ (FSC™). This endorsement gives assurance that UKWAS provides a framework for the management of woodland that is in line with recognised best practice. This article outlines the main principles of sustainable forest management and explains how it contributes to conservation and climate resilience, whilst at the same time providing a renewable supply of many different timber products.
What Is Sustainable Forest Management?
The overriding principle of sustainable forest management is about caring for forests in such a way that the needs of this generation are met without diminishing the needs of future generations. It is a holistic approach in the short, medium and long-term that covers everything from planting and natural regeneration to harvesting and access provision. Sustainable forest management means harvesting within the estimated annual increment of a woodland and replacing trees that are harvested through replanting and/or natural regeneration. It also means protecting soil, water and wildlife while supporting local economies and communities. The economic, environmental and social pillars of forest management certification under the PEFC scheme lead us to strike a sustainable balance and be accountable to wider society.
The Main Principles of Sustainable Forest Management
The concept of sustainability in forestry is built around seven key principles:
- Maintaining forest resources and their contribution to the global carbon cycle – the quantity and quality of the forest resources and the capacity of the forest to store and sequester carbon is safeguarded.
- Protecting forest health and vitality – managing pests, disease, fire risk and increasing long-term resilience.
- Conserving biodiversity – safeguarding native species, habitats and forest structures.
- Protecting soil and water – preventing erosion and protecting watercourses.
- Supporting productive functions – managing for timber and non-timber outputs sustainably.
- Delivering social and economic benefits – supporting communities, workers and rural livelihoods.
- Complying with laws and good governance – meeting regulations and maintaining transparent, accountable management.
How Management Differs Between Small-Scale Native Woodland and Large-Scale Mixed Woodland
Sustainable forest management always follows the same principles, but how these principles are applied will vary depending on the scale, structure and objectives of the woodland. A small-scale native woodland is often managed with a stronger emphasis on biodiversity, habitat restoration and cultural or community value. Management interventions tend to be low intensity, with selective thinning, coppice restoration and natural regeneration used to support native species and maintain semi-natural characteristics. Timber production is usually limited but can still play an important role, particularly in the supply of small-diameter roundwood, fuelwood or craft material.
In contrast, a large-scale mixed woodland is generally more complex, often containing a blend of conifer and broadleaf species. These sites are managed to deliver a wider range of commercial and non-commercial outputs. They use techniques such as clear-fell and restock, shelterwood or single tree silvicultural systems, phased thinning and planned rotations for long-term restructuring to diversify age classes and increase resilience. Larger sites also require more detailed operational planning, including road access, compartment design, monitoring of pests and disease, and landscape-scale biodiversity work such as riparian management, open ground design or species diversification.
Despite the differences in scale, small and large woodlands can deliver sustainable timber to market support national and local conservation features and offer public access to local people. The key point is that each site delivers its own blend of outputs, shaped by its size, composition, objectives and the needs of the local community and landscape.
The Evolution of Sustainable Forest Management
The way in which our forests are managed in the UK has changed significantly over time. Following the first world war, when our forest cover had been reduced to as little as 5% of land area, the priority was to plant productive conifers in a way that would maximise timber yield. This approach often resulting in large areas of single species, which were then clear-felled when they reached maturity, and whilst this boosted the economic value of the forestry sector, it did little to enhance the environmental and social values. However, in recent years our understanding of the wide range of benefits that forests provide has increased and has led to more a sustainable approach to management. Harvesting is planned carefully, the use of natural regeneration is considered alongside planting where appropriate. Potential environmental benefits such as retention of deadwood and management of veteran trees, management of watercourses, ecosystem restoration, which can increase biodiversity are at the forefront of management practices. In some forests, clearfell is being replaced with a continuous-cover approach to management, which involves the removal of individual or small groups of trees to produce a mosaic of various ages rather than the felling of large blocks trees. Under the UKWAS, every operation has to be part of a long-term management plan that is designed to protect the economic, environmental and social value of the forest. This results in a more balanced approach that considers how today’s actions will shape and safeguard tomorrow’s forests. These principles of forest management are integral within PEFC sustainable forest management benchmarks against which national or regional systems such as UKWAS are assessed and endorsed.
Sustainable Forestry and Climate Change
Sustainably managed forests play a vital role in addressing climate change. Trees absorb carbon dioxide from the atmosphere, store it in wood and soil and provide renewable materials that help reduce our reliance on fossil fuels. Furthermore, the carbon that is absorbed by the tree remains stored in the wood even after it is harvested and converted into a product. Therefore, when managed sustainably, forests provide a carbon cycle as they continue to act as carbon sinks, even when some trees are harvested. Sustainably managed forests also help reduce emissions by maintaining overall forest cover, encouraging regeneration and providing low-carbon alternatives to steel and concrete in construction.
Sustainable Forest Development
Sustainable forest development means looking at forests as part of a wider landscape and community. It is about balancing the management of the productive potential of forests along with environmental and social outcomes, ensuring forests continue to deliver benefits such as clean air, water and habitat protection. Good management plans, guided by sound silvicultural principles, underpin this approach. Regular monitoring and continuous improvement help keep forests healthy and productive, supporting both local economies and biodiversity.
The Role of PEFC Certification
Certification provides an independent, third-party check that the management operations in a forest meets recognised standards. PEFC operates globally, endorsing national systems like UKWAS, and also regional systems. For forest owners, certification demonstrates that their management aligns with PEFC’s sustainable forest management benchmarks and opens access to markets that demand proof of sustainability and responsible management. It’s greatest value lies in confirming that a forest is being managed responsibly for the future.
Looking Ahead
As expectations for responsible land management grow, sustainable management of our forests will remain an increasingly important objective in the UK. It helps safeguard wildlife and their ecosystems, contribute towards climate-change mitigation, support rural livelihoods and provided a long-term renewable supply of timber. Certification through the PEFC scheme offers a trusted framework to maintain these standards and provide independent verification by third-party accredited certification bodies. PEFC also commits to evolving over time to reflect the changing values of people, communities and governments in such a way that forest managers can adapt positively.
By managing our forests responsibly today, we ensure they continue to deliver benefits for future generations.
Contact us if you would like more information on sustainable forest management or want to learn how to become certified.
Frequently Asked Questions
Sustainable forest management means managing forests to meet today’s needs for timber and other resources while maintaining and enhancing their health, biodiversity and productivity for the future. It balances environmental protection, social responsibility and economic viability.
Key principles include maintaining and enhancing forest resources and carbon storage potential, protecting forest health, conserving biodiversity, safeguarding soil and water, supporting productive functions, ensuring social benefits and complying with legal and ethical standards.
A small native woodland is usually managed with low-intensity, habitat-focused practices such as selective thinning, coppice restoration and natural regeneration. A large mixed woodland requires more structured planning, including phased thinning, species diversification, and long-term silvicultural systems to balance commercial timber production with biodiversity, carbon storage and wider landscape benefits.
Yes. Sustainably managed forests act as carbon sinks, absorbing CO₂, storing carbon in wood and soil, and providing renewable materials that replace carbon-intensive alternatives. They also help forests adapt to changing conditions.
Accredited third-party certification provides assurance of good management, strengthens market access, helps meet public and private procurement requirements and contributes to national sustainability and climate targets.
