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4034 Search Results

  • Trees

    Caucasian fir, Nordmann fir (NMF)

    Caucasian fir is better known by its other common name Nordmann fir. It will also be familiar to many as a popular Christmas tree that retains its needles. It was a late introduction to Britain (1848) and has received little attention as a species for forestry. This may have been due to the focus on the faster growing firs from the Pacific northwest and the better known and earlier introduced European silver fir (Abies alba). A species that can grow to a large size in Britain reaching heights of > 48 m under suitable conditions. There are few research trials, and most trees are found as specimens in Botanic Gardens. Caucasian fir is a species that requires further research and current indications are it appears to tolerate a range of soils and climatic conditions that could give it a limited niche in forest diversification. Caucasian fir is categorised as a Plot-stage species which has demonstrated some positive silvicultural characteristics at the Specimen-stage and are now subject to further testing and development in a limited number of trial plots.
  • Staff

    Pankajini Samal

    Research Assistant - Pathology
    Tree health
  • News
  • Staff

    Salvo Bonomo

    Research Assistant
    Climate change
  • Trees

    Aspen (ASP)

    Aspen sometimes called Eurasian aspen (Populus tremula) is one of two native poplar species to Britain; the other being black poplar (Populus nigra subsp. betulifolia). Recognised for its important ecological role as a host for numerous species and said to have more host-specific species than any other boreal tree. A fast-growing elegant tree that can reach 25 m. The grey bark is covered in distinctive diamond shaped lenticels and on a windy day the tree can often be heard before seen with its distinctive rustling, shimmering leaves which provide its other common name, quaking aspen. An important timber tree in parts of mainland Europe in Britain it mainly fills an ecological role in forest diversification or as a species for quick growing short rotation forestry. Increasing interest in planting suggests a need for further research into its potential as a productive forest species in Britain. Aspen is a native tree and is categorised as a Secondary tree species. This is a species whose performance in trial plots has demonstrated promising silvicultural characteristics but gaps in our knowledge constrain wider use. Such species are being actively evaluated to increase our understanding and inform future deployment.
  • Trees

    London plane (LPL)

    London plane is a hybrid between Oriental plane (Platanus orientalis) from southern Europe and American sycamore (Platanus occidentalis). Generally thought to have a garden origin in Oxford during the 17th century with some disputed evidence of an origin in Spain hence its other commonly used name the syn. Platanus x hispanica. Very tolerant of atmospheric pollution and root compaction it is a popular street tree. With its mottled colourful bark, large size and stature it is instantly recognisable and an important part of London’s treescape, hence its common name. It is also widely planted in cities around the world with temperate climates for its ornamental and parkland value. The young leaves and seed shed short hairs and can be an irritant when breathed in. This can exacerbate breathing issues particularly for people with asthma. Although long cultivated and horticulturally well known there is little silvicultural knowledge on growing London plane as a productive forest tree in Britain. Current interest is the species may benefit from climate warming and its potential as an alternative to ash on some sites. London plane is categorised as a Plot-stage species.  These are species that have demonstrated some positive silvicultural characteristics at the Specimen-stage and are now subject to further testing in a limited number of trial plots.
  • Staff

    Alice Walker

    Entomologist
    Tree health
  • Staff

    Katarina Moravkova

    Research Scientist
    Mensuration, growth and yield
  • Publications

    Review of the Forest Trapping Network Year One Rollout 2022

    Lead Author: Alice Walker
    The Forest Trapping Network is a rolling programme which will survey 100 forests for EU-survey list pests over five years. In each forest, plots of oak, pine, spruce, fir and mature mixed broadleaf are chosen to target different pest species. The FTN is currently in the first year of the Beta-phase (2022 - 2025), with the first full 5-year reporting period commencing in 2025 and finishing in 2030. The Alpha-phase of the project ran from 2020-2022, testing different lure and forest-type combinations.
  • Staff

    Sir Harry Studholme

    Research Fellow
    Fellows
  • Staff

    Nick Porter

    Urban Forest Scientist
    Urban forests
  • Publications

    In Brief: Increasing tree cover on dairy farms in England: The role of farmers’ values

    Lead Author: Maddy Pearson
    Understanding the range of values held by farmers in relation to trees allows us to learn how, when, and where farmers may embrace having trees on their land. Explicit consideration of these values will better enable those working to design policies, incentives, tools, advice, or other communications to do so in ways which are more […]