Sökning: "karst"

Visar resultat 1 - 5 av 75 uppsatser innehållade ordet karst.

  1. 1. Röjningsstrategiers effekt på stubbskottsutveckling och granmedelhöjd i blandbestånd av gran och björk

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

    Författare :Max Lindhe; Jonathan Samuelsson; [2023]
    Nyckelord :röjningsstrategi; stubbskott; björk; gran;

    Sammanfattning : Olika röjningsstrategier förväntas påverka stubbskottsbildning hos röjstubbar av vårtbjörk (Betula Pendula Roth) och glasbjörk (Betula Pubescens Ehrh), men relativt få studier har gjorts på området, varför det finns utrymme för vidare forskning. Det huvudsakliga syftet med den här uppsatsen var att undersöka skillnaderna i stubbsskottsutveckling till följd av olika röjningsstrategier. LÄS MER

  3. 2. Emergence patterns of Ips typographus and Medetera spp. after overwintering in killed spruce trees

    Master-uppsats, SLU/Dept. of Ecology

    Författare :Oliver Morén James; [2023]
    Nyckelord :Ips typographus; Medetera; M. signaticornis; M. pinicola; M. ambigua; emergence patterns;

    Sammanfattning : Ips typographus (Coleoptera: Curculionidae, Scolytinae) is a pest species that mainly attacks Norway spruce (Picea abies L. Karst.) and can kill large volumes of spruce trees during outbreaks, leading to economic losses of great magnitude. A common practice to manage attacks is to remove recently killed trees and thereby remove the beetles. LÄS MER

  4. 3. Long-Term Results of a Field Experiment in Conifer Mixed Regenerations

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Hammed Abiola Adekunle; [2023]
    Nyckelord :regeneration; Drettinge method; Scots pine; Norway spruce; Clearcut; Shelterwood;

    Sammanfattning : A national regeneration experiment was established across the boreal forest of Sweden. This study presents the regeneration results of the combination method, the so-called Drettinge method, which aims to evaluate the establishment of mixtures of naturally regenerated Scots pine (Pinus sylvestris L.) and planted Norway spruce (Picea abies L. Karst. LÄS MER

  5. 4. CLIMATE CHANGE AND THE NORWAY SPRUCE TREELINE IN THE CENTRAL SCANDINAVIAN MOUNTAINS Treeline evolution, tree growth and a Blue Intensity summer temperature reconstruction

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Fredrik Karlsson; [2022-09-01]
    Nyckelord :Treeline evolution; Tree growth; Norway spruce; central Scandinavian mountains; Blue Intensity;

    Sammanfattning : In the context of global change, mountain regions have received increased interest in recent times with researchers trying to answer how such regions may be affected by a changing climate. Treeline environments are sensitive to the impacts of climate change which may significantly alter the characteristics of the regions. LÄS MER

  7. 5. The ability to create mixed stands by planting Norway spruce and Scots pine every second row

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Eva Higgins Andersson; [2022]
    Nyckelord :Local site index; seedlings every second row; regeneration; biodiversity; climate change; establishment;

    Sammanfattning : Swedish forests primarily consist of Scots pine (Pinus sylvestris L.) and Norway spruce (Picea abies (L.) Karst.). LÄS MER