Sökning: "brukade skogar"

Visar resultat 1 - 5 av 15 uppsatser innehållade orden brukade skogar.

  1. 1. Trender i Sveriges skogar baserat på uppmätta fältdata åren 1983-2020

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

    Författare :Linnéa Aronsson; Jens Bergenheim; [2022]
    Nyckelord :Skog; Riksskogstaxeringen; Gamla skogar;

    Sammanfattning : Denna studies mål var att generera en tydlig bild av hur skogens tillstånd utvecklats med avseende på ålder, diameter och träslagsfördelning, mellan åren 1983-2020. Dessutom har studien för perioden 2016-2020 undersökt ägoslag med avseende på medelålder och medeldiameter, samt skogar med naturinriktad och produktionsinriktad skötsel för skog tillhörande Sveaskog. LÄS MER

  3. 2. Riparian forests : a comparison of tree diversity, deadwood and canopy cover between primary and production riparian forests along headwaters

    Master-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Eric Lundqvist; [2022]
    Nyckelord :riparian forest; primary forest; production forest; tree diversity; deadwood; canopy cover;

    Sammanfattning : Headwaters and their adjacent riparian forests (RF) have been recognized for years for their tight interlinkage and essential ecological and biogeochemical services. Notwithstanding, headwaters in Sweden have historically been overlooked in forest management, which has led to conifer-dominated RFs with simplified even-age structure. LÄS MER

  4. 3. All scales matter : effects on the landscape-, stand-, substrate- and temporal scale on occurrence of two deadwood living microlichens

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Edith Bremer; [2021]
    Nyckelord :extinction debt; deadwood; microlichens; continuity forest; landscape structure;

    Sammanfattning : Understanding extinction debt and how species are affected by landscape structure is important knowledge in order to form strategies for species protection in forestry and conservation. In this study, I investigate whether an extinction debt can be detected in two deadwood living lichen species by modelling their occurrence against past and present habitat amount in the landscape as well as amount of continuity forest (i. LÄS MER

  5. 4. The future of retention forestry : the historical legacy in stands and its impact on retention in the next generation

    Master-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Jan Lindblad; [2019]
    Nyckelord :Naturhänsyn; trakthyggesbruk; biodiversitet; ekologiska strukturer; skogsskötsel; landskap; kontinuitet; sekundärskog; bevarande; hotade arter; tree; Green; retention; clearcutting; biodiversity; ecological structures; management; landscape; continuity; secondary forests; conservation; threatened species;

    Sammanfattning : Today, around 55% of the world’s forests are already managed for timber pro-duction and other values. The need for actions concerning the fast decline in biodiversity was in the late 20th century met by the uprising of retention forest-ry. LÄS MER

  7. 5. How is soil carbon stock in old-growth boreal forests affected by management?

    Master-uppsats, SLU/Dept. of Forest Ecology and Management

    Författare :Jenny Dahl; [2018]
    Nyckelord :forest management; unmanaged forest; harvesting effects; mineral soil; skogsskötsel; obrukad skog; avverkningseffekt; mineraljord;

    Sammanfattning : Boreal forests are able to store large amounts of carbon in soil and biomass, and forest management is considered an important strategy for mitigating climate change. Sweden has a long history of forest management that have intensified during the last century, but there are still old-growth forests that have not been disturbed by management. LÄS MER