Sökning: "robur"

Visar resultat 6 - 10 av 81 uppsatser innehållade ordet robur.

  1. 6. Go with the flow - can environmental flows save us? : A study of the flow patterns in Bredforsen and possibilities for the future

    Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

    Författare :Hilda Brynjarsdotter; [2022]
    Nyckelord :Riparian zone; Riparian vegetation; Riparian vegetation zones; Regulated rivers; Floodings; hydropower;

    Sammanfattning : Freshwater systems have, during human history, endured large-scale impacts. According to the water framework directive, measures must be developed to create a better environment for species in, and connected to, freshwater systems. Hydropower plants has caused loss of natural disturbance (e.g. LÄS MER

  3. 7. Faktorer som påverkar ekföryngring : Pilotstudie med fokus på effekter av brand

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Författare :Anna Lexne; [2022]
    Nyckelord :Oak; Quercus robur; Quercus petrea; regeneration; prescribed fire; canopy cover; seed plants; root sprouts; fire-oak hypothesis; Ek; Quercus robur; Quercus petrea; föryngring; brand; naturvårdsbränning; krontäckning; fröplantor; rotskott; brand-ek-hypotes;

    Sammanfattning : Ekträd har en central roll i den biologiska mångfalden, där de utgör både livsrum och födkrok för ett stort antal insekter, lavar, svampar och fåglar under sin långa livstid och därefter i den döda veden. Ek har minskat dramatiskt under de senaste 200 åren, men orsakerna till detta är inte helt klarlagda. LÄS MER

  4. 8. The Combined Influences of Canopy Openness, Browsing Protection, and Low Intensity Fire on the Natural Regeneration of Oak in Southern Sweden

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Benjamin Miles; [2022]
    Nyckelord :burn; browsing; disturbance; fire; light; oak; Q.robur; Q.petraea; ungulates;

    Sammanfattning : Whilst oak was historically prevalent in the landscape of temperate Europe, changes in the disturbance regime of forests have led to limited regeneration across its distribution. In this study, the fire oak hypothesis is tested to assess the tolerance of Quercus robur and Quercus petraea recruits (seedlings and saplings) to a low intensity burn, and how this response may differ depending on the presence of browsing and canopy openness. LÄS MER

  5. 9. Deformation av korslimmad skiva av ek till följd av fuktförändringar

    M1-uppsats, Linnéuniversitetet/Institutionen för skog och träteknik (SOT)

    Författare :Lucas Rytkönen; [2022]
    Nyckelord :cross-laminated; lamella; oak; deformation; cupping;

    Sammanfattning : Cross-laminated boards is a technique of joining together lamellas of wood to create more dimensionally stable boards. Ballingslöv uses cross-laminated boards in their production and sometimes they observer cupping in the boards that may halt production. LÄS MER

  7. 10. Changes in the oak (Quercus robur) population in Dalby Söderskog national park 2011–2020 : stem size distribution, spatial distributions, vitality and mortality

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Johan Larsson; [2021]
    Nyckelord :forest reserve; national park; long-term study; oak; oak regeneration; Quercus robur;

    Sammanfattning : A recent oak (Quercus robur) decline has been noticed and studied in Europe during the last few decades. This decline in combination with failure in natural regeneration could threaten not only oak populations, but also oak-associated species. LÄS MER