Sökning: "robur"

Visar resultat 21 - 25 av 81 uppsatser innehållade ordet robur.

  1. 21. Linking growth and vitality in large Quercus robur to environmental factors and predicting their future in Linköping municipality

    Kandidat-uppsats, Linköpings universitet/Biologi

    Författare :Liselotte Neumann; [2018]
    Nyckelord :Quercus robur; oak; growth; vitality; mortality; overgrowth; veteran trees; lichen; Quercus robur; ek; tillväxt; vitalitet; mortalitet; igenväxning; gamla träd; lav;

    Sammanfattning : Veteran trees such as large Quercus robur L. function as biodiversity hotspots and provide a number of valuable ecological functions. This study aimed to increase knowledge about the mechanisms that influence the longevity of Q. robur by: (i) describing the status of veteran Q. LÄS MER

  3. 22. Interspecifik konkurrens från undervegetation och dess betydelse för densitet : – En fältstudie baserad kring fyra olika konkurrenstyper på ek.

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

    Författare :Sara Granholm; [2018]
    Nyckelord :;

    Sammanfattning : This study is based on a field trial at SLU in Alnarp. The idea behind the study was to see how interspecific competition influence density and annual rings on oaks (Quercus robur). The trial started out from four blocks with four different treatments. LÄS MER

  4. 23. Browsing on naturally regenerated oak seedlings : the interaction between cervid browsing and light availability

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Per Nordin; [2018]
    Nyckelord :browsing intensity; browsing frequency; forest regeneration; moose; Quercus robur; roe deer; southern Sweden;

    Sammanfattning : Browsing on oak seedlings and other tree species is a major problem when regenerating forest in Sweden. Several factors such as light, surrounding vegetation and season, can influence browsing intensity and browsing frequency. In this study the relationship between cervid browsing and light was examined. LÄS MER

  5. 24. Succession patterns and the role of fire in long-term dynamics of a mixed deciduous stand in Białowieża Forest, Poland

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Andreea Petronela Spinu; [2018]
    Nyckelord :dendroecology; disturbance regime; forest history; fire history; regeneration of Pinus sylvestris L.; regeneration of Quercus robur L.; temperate lowland Tilio-Carpinetum forest; mesophication; fire cessation;

    Sammanfattning : In temperate Europe, the ecological importance of fire is poorly understood, especially in the dynamics of forests with high share of broadleaved tree species. The aim of this thesis was to explore the role of fire in a 43-ha mixed-deciduous forest stand in Białowieża Forest, NE Poland. LÄS MER

  7. 25. Conservation of saproxylic beetles in a wooded pasture in northern Scania

    Master-uppsats, Lunds universitet/Examensarbeten i biologi

    Författare :Andreas Schmidt; [2018]
    Nyckelord :Biology and Life Sciences;

    Sammanfattning : The area of wooded pasture in Europe has decreased drastically over the last centuries due to abandoned management. Herrevadskloster is a newly formed nature reserve in northern Scania with an unusually long continuity of being an open, grazed woodland containing large old trees. LÄS MER