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  • Research

    Climate Change Mitigation Research to Support Net Zero Policies (DESNZ-FR MoU)

     Research on climate change mitigation to support Net Zero Policies through the Department for Energy Security and Net Zero – Forest Research Memorandum of Understanding (MoU)
  • Research

    Range expansion of bark beetles in the genus Ips (ECLIPSE)

     First evidence of breeding by Ips typographus in the United Kingdom and expansion of Ips amitinus in Scandinavia, Ips duplicatus in central Europe and Ips cembrae in Great Britain and western/northern Europe suggest that factors that previously limited or moderated range expansion may be changing. This project will assess the...
  • Research

    AWDev (NCF): Ancient Woodland and Development Impacts

     Ancient woodlands provide some of Great Britain’s most biodiverse and culturally significant habitats. Current planning policy aims to protect these ‘irreplaceable’ habitats from the direct and indirect impacts of nearby development. However, assessing the potential impact of development on nearby habitats is complex and impeded by evidence gaps. Our aim is to deliver evidence to underpin future policy, practice, and industry guidance critical to safeguarding ancient woodlands whilst supporting responsible development and woodland use.
  • Publications
    Forestry publication document

    [Archive] Revised windiness scores for the windthrow hazard classification: the revised scoring method
    Lead Author: C.P. Quine
    RIN 230 (1993) Out of print research publications from the 1980s and 1990s. Please note that since publication the products named may have been withdrawn or changed formulation, services may no longer be available, legislation superseded and addresses and contacts changed.
  • Publications
    Forestry publication document

    Revised valuation of flood regulation services of existing forest cover to inform natural capital accounts.
    Lead Author: Samantha Broadmeadow
    The ability of trees, woodlands and forests to reduce downstream flooding is increasingly recognised and valued by society, driving a demand for assessments of this important ecosystem service. This study updates a previous evaluation (Broadmeadow et al., 2018) with improved estimates for the volume of flood water potentially removed by woodland or retained by its […]
  • Publications

    Acetamiprid used to prevent Hylobius abietis damaging young trees poses a very low risk of causing water contamination provided good forestry practices are followed
    Lead Author: Huw Thomas
    A study of chemical runoff following the use of acetamiprid as a pre-treatment and top-up spray to prevent damage from the large pine weevil (Hylobius abietis L.) to young trees was undertaken at a restock site in mid-Wales. The site was specifically selected to pose a high risk of chemical runoff, being a high elevation, […]
  • Research

    Community Tree Nurseries

     Evidencing the potential for community tree nurseries to contribute to satisfying current British demand for quality, diverse, biosecure tree stock.
  • Publications

    An analysis of conifer experiments in Britain to identify productive alternatives to Sitka spruce
    Lead Author: Victoria Stokes
    An analysis of relevant species trials was carried out to assess the productivity of potential alternative conifer species to Sitka spruce on upland site types in Britain. Data from 87 forest experiments planted between 1929 and 1995 were analysed to compare long-term performance of 52 species with that of Sitka spruce under the same conditions and site type.
  • Publications

    Intimate mixtures of Scots pine and Sitka spruce do not increase resilience to spring drought
    Lead Author: Tom Ovenden
    Understanding how we can increase the resilience of forest systems to future extreme drought events is increasingly important as these events become more frequent and intense. Diversifying production forests using intimate mixtures of trees with complementary functional traits is considered as one promising silvicultural approach that may increase drought resilience. However, the direction and magnitude […]
  • Publications

    How resilient are planted UK forests to drought? A summary of recent research on Sitka spruce and Scots pine.
    Lead Author: Tom Ovenden
    As our climate warms, the pressures on global forest ecosystems from extreme climate events are expected to increase across much of the world (Anderegg et al., 2020; Brodribb et al., 2020). Of particular concern is the increasing threat to tree health and productivity posed by drought. Despite a predominantly cool maritime climate, forest ecosystems in […]
  • Publications

    The potential of the selective graminicides cycloxydim and propyzamide as habitat improvement tools for the pearl-bordered fritillary butterfly
    Lead Author: Matt Parratt
    The pearl-bordered fritillary (Boloria euphrosyne) is a resident UK butterfly which is in decline, partly because grasses can outcompete its preferred food plant, common dog-violet (Viola riviniana). We therefore investigated whether using graminicides could help to enhance the habitat quality of a violet-rich butterfly ride. Applications of 1.5 kg a.i. ha-1 propyzamide or 0.45 kg a.i. ha-1 cycloxydim both reduced grass cover and were associated with an increase in violet plants. Our work suggests that enhancing pearl-bordered fritillary habitat may not always be possible through herbicide use alone, but cycloxydim may have a useful role in helping to reduce competition from grasses.
  • Research

    New evidence to inform woodland creation for climate change mitigation

     A project was commissioned to estimate and compare the potential for carbon sequestration (net CO2 uptake) and GHG emissions mitigation that could be realised by creating different types of woodlands. The analysis assesses the influence of different tree species, site and management factors, including the eventual use of harvested wood, on...
  • Publications
    Forestry publication document

    Adapting forest and woodland management to the changing climate
    Lead Author: Gail Atkinson
    Our climate is changing rapidly, with milder, wetter winters, warmer summers, longer growing seasons and more frequent extreme conditions, including drought periods and heavy rainfall events. The projected rate of climate change is unprecedented and therefore action is essential now to improve the resilience of forests and woodlands, and to protect the benefits that they […]
  • Publications

    Threshold Response to Extreme Drought Shifts Inter-Tree Growth Dominance in Pinus sylvestris
    Lead Author: Tom Ovenden
    Many studies quantify short-term drought impact on tree growth relative to pre-drought growth averages. However, fewer studies examine the extent to which droughts of differing severity differentially impact tree growth or shape stand dynamics. Focusing on three droughts in high and low density stands of Pinus sylvestris in Scotland, we calculated pre-drought growth averages using […]
  • Publications

    Life after recovery: Increased resolution of forest resilience assessment sheds new light on post-drought compensatory growth and recovery dynamics
    Lead Author: Tom Ovenden
    Understanding the impacts of extreme drought on forest productivity requires a comprehensive assessment of tree and forest resilience. However, current approaches to quantifying resilience limit our understanding of forest response dynamics, recovery trajectories and drought legacies by constraining the temporal scale and resolution of assessment. We compared individual tree growth histories with growth forecasted using […]
  • Publications

    Comparison of the carbon, water, and energy balances of mature stand and clear-fell stages in a British Sitka spruce forest and the impact of the 2018 drought
    Lead Author: Georgios Xenakis
    Sitka spruce is the major conifer species in British upland forests and is predominantly managed as even-aged, single-species plantations with rotation lengths of less than 50 years using a “patch clear-felling” system. Evidence on the impact of clear-felling on the carbon, water and energy balances of plantation forestry is sparse and extreme weather events, such […]
  • Publications
    Forestry publication document

    The devil is in the detail: Metabarcoding of arthropods provides a sensitive measure of biodiversity response to forest stand composition compared with surrogate measures of biodiversity
    Lead Author: Nadia Barsoum
    We investigated whether biodiversity information obtained from DNA metabarcoding of mass-trapped arthropods and from a range of taxa-based surrogate measures of biodiversity (e.g. carabid beetles, vascular plants) provide: 1) similar estimates of alpha and beta diversity and 2) provide similar forest management related conclusions. We also explored how well habitat-based surrogate measures of biodiversity (e.g. stand structure, volume of deadwood) predict observed biodiversity patterns.
  • Research

    Breeding ash trees for tolerance to ash dieback

     Forest Research have been engaged in efforts to improve tolerance of ash trees to ash dieback caused by Hymenoscyphus fraxineus (previously known as ‘Chalara‘) since the disease was first recognised in Great Britain in 2012. Progress has been made under three main projects: Living Ash Project  Ash dieback mass screening trials  Testing a range of ash species for tolerance to ash dieback Across these three projects,...