Sökning: "clearcutting"

Visar resultat 1 - 5 av 25 uppsatser innehållade ordet clearcutting.

  1. 1. 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

  2. 2. Fjärranalys av kantzoner och död ved i Natura 2000- vattendrag : Hur har det förändrats över tid?

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

    Författare :Valdemar Samuelsson; [2019]
    Nyckelord :Riparian zone; LWD large woody debris ; remote sensing; Natura 2000; Kantzon; död ved; fjärranalys; Natura 2000;

    Sammanfattning : The forestry is the main use of forests in Sweden which results in a number of positive aspects but also a number of negative effects on our nature. Aquatic ecosystems are specifically exposed to land use by the forest industry. LÄS MER

  3. 3. ÖSI och naturvården : hur hanterades naturvärden när staten kartlade småskogsbrukets skogar?

    Kandidat-uppsats, SLU/School for Forest Management

    Författare :Britta Asplund; [2019]
    Nyckelord :Översiktlig skogsinventering; Skogspolitik; Skogsvårdslagen;

    Sammanfattning : At the beginning of the 1970´s the Swedish forestry had developed into a highly mechanized and intensive operation. It received strong criticism for its methods and negative effects on the environment. LÄS MER

  4. 4. Slutavverkningsuppföljning med drönare

    Kandidat-uppsats, SLU/School for Forest Management

    Författare :Nils Jonsson; [2019]
    Nyckelord :fjärranalys; naturvård; körskador; vindfällen; högstubbe; överfart;

    Sammanfattning : Drones, how they can be introduced and ease the modern forestry, is something that has started to be discussed around the coffee tables at the forestry office´s in Sweden. When these are getting more easily accessible and better and better more people are starting to see the possibilities and use of the drones. LÄS MER

  5. 5. Clearcutting and the breeding productivity of golden eagles (Aquila chrysaetos) in Västerbotten County

    Master-uppsats, SLU/Dept. of Wildlife, Fish and Environmental Studies

    Författare :Amanda Trulsson; [2019]
    Nyckelord :forestry; breeding productivity; breeding success; nestlings; breeding core home range; breeding core area;

    Sammanfattning : The golden eagle (Aquila chrysaetos) is red-listed as near threatened in Sweden, but there are many basic ecological and demographical parameters important for successful management and conservation that are unknown for the Swedish golden eagle population. Forestry, and especially clearcutting (or final cutting/felling or regeneration cutting/felling), the most common harvesting system in Sweden since the 1950’s, are likely important factors affecting the Swedish golden eagle population, but exactly how is largely unknown. LÄS MER