Sökning: "Wood Species"

Visar resultat 6 - 10 av 366 uppsatser innehållade orden Wood Species.

  1. 6. Evaluation of five hardwood species from Zambia to produce fuel pellets for cooking purposes : Study with a single pellet press including pellet production, post production testing and X-ray examinations

    Kandidat-uppsats, Karlstads universitet/Avdelningen för energi-, miljö- och byggteknik

    Författare :Annika Silvennoinen; [2023]
    Nyckelord :Pelletizing; Pellet Production; Wood Species; X-Ray examinations; Pelletisering; Pelletstillverkning; Träslag; Röntgenundersökningar;

    Sammanfattning : 81% of the population in sub-Saharan Africa relies on charcoal and firewood to cover their energy needs for cooking. In Africa charcoal is usually produced by burning tree in a traditional kilns and then the food is cooked with a carbon-fired stoves indoors. LÄS MER

  3. 7. Population dynamics of the spruce bark beetle Ips typographus in forest conservation areas and the interaction with biodiversity and natural enemies

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Evelina Andersson; [2023]
    Nyckelord :spruce bark beetle; population dynamics; conservation areas; biodiversity; natural enemies; species richness; managed forests; woodland key-habitats; nature reserves;

    Sammanfattning : Biodiversity is rapidly decreasing and in need of more conservation efforts. However, the tree-killing European spruce bark beetle, Ips typographus (L.), has made forest conservation controversial by affecting conservation areas and possibly adjoining managed forests, yet is still a keystone species leaving decaying wood promoting biodiversity. LÄS MER

  4. 8. Skapandet av högstubbar : en undersökning av skördarförares perspektiv och systemstöd inom Mellanskog

    Kandidat-uppsats, SLU/School for Forest Management

    Författare :Emma Boström; Malin Svedberg; [2023]
    Nyckelord :död ved; avverkning; PEFC;

    Sammanfattning : Mellanskog är en skogsägarförening som är verksam från Gotland till Härjedalen. Vid generell hänsyn i skogen lämnas död ved, bland annat i form av högstubbar. Högstubbar bidrar till viktiga livsmiljöer för många arter. LÄS MER

  5. 9. Growth and quality of silver birch with different improvement levels

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Hanna Liebner; [2023]
    Nyckelord :Betula pendula Roth; genetic improvement; tree breeding; diameter growth; stem quality; branches quality;

    Sammanfattning : Silver birch is the most important broadleaf tree species in the context of wood production in Fennoscandia stating 12.9% of the total volume in Sweden (Nilsson et al., 2021). LÄS MER

  7. 10. Animal personality in ants : Does the red wood ant (Formica rufa) express personality traits?

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

    Författare :Malin Sjöberg; [2023]
    Nyckelord :Animal personality; Scototaxis; Formica rufa;

    Sammanfattning : A recent theory within behavioural ecology suggests that some animal behaviour traits are consistent over time and over different contexts as part of an animals’ “personality”. Animal personality has generally been accepted within vertebrates, but the idea of invertebrates expressing personality has long been meet with scepticism. LÄS MER