Sökning: "vegetation dynamics"

Visar resultat 21 - 25 av 100 uppsatser innehållade orden vegetation dynamics.

  1. 21. Topographic controls of drought impact on Swedish primary forests

    Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Johanna Asch; [2021]
    Nyckelord :Physical geography; ecosystem analysis; primary forest; boreal forest; drought impact; topography; drainage; climate change; random forest; terrain index; Earth and Environmental Sciences;

    Sammanfattning : Anthropogenic climate change has increased the frequency of extreme drought events and leads to “hotter” droughts. Topography controls plant available water and site-specific climatic conditions. Drought sensitivity may therefore vary over short distances between wet and dry locations of the landscape. LÄS MER

  3. 22. Management and site conditions drive carbon dynamics of Forest understory vegetation

    Master-uppsats, SLU/Southern Swedish Forest Research Centre

    Författare :Emily Delin; [2021]
    Nyckelord :carbon sequestration; forest floor vegetation; ground vegetation; mixed model; Sweden;

    Sammanfattning : The forest understory vegetation is largely disregarded in studies of carbon sequestration despite notable contribution to storage and cycling in the ecosystem. In addition to already lacking knowledge on this pool independently, further uncertainty and change is introduced by forest management and the changing climate. LÄS MER

  4. 23. Influence of land cover changes on organic carbon and organic nitrogen concentrations in Swedish rivers

    Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Julia Iwan; [2021]
    Nyckelord :Total Organic Carbon TOC ; Total Organic Nitrogen TON ; Land Cover Change; Sweden; WaterBase; Earth and Environmental Sciences;

    Sammanfattning : There is increasing pressure on freshwater systems due to excessive nutrient loading by anthropogenic sources. In Sweden, freshwaters have become browner due to increasing exports of organic matter from soils into streams, rivers, and lakes. LÄS MER

  5. 24. Simulation Model for Forestry Ground and Vegetation Damage

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Elias Hökfors; [2021]
    Nyckelord :Forest ground; forest machines; soils; soil mechanics; simulators; Unreal Engine; AGX Terrain;

    Sammanfattning : Training simulators are valuable tools in education of forest machine operators. One important part of the education is to learn about damages occurring due to the forest machines and how they can be avoided. Two types of damages are especially severe, soil compaction and formation of wheel ruts. LÄS MER

  7. 25. A detailed study on Amazon Forest structure and mortality rates through LPJ-GUESS vegetation model

    Kandidat-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Författare :Sara Mazzuoli; [2021]
    Nyckelord :Amazon s Forest; LPJ-GUESS; simulation; TEAM-NETWORK; dynamic vegetation model; observation; mortality; allometry; tree stand structure; biomass; cohort; PFTs; plant functional types; NPP; Earth and Environmental Sciences;

    Sammanfattning : Nowadays it has become relevant for scientists to understand the impact of tropical forest structure on the Global Carbon Cycle. Dynamic vegetation models have been developed to pursue this issue, specifically by improving algorithms that could analyze the allometry, biomass content and mortality rate of each singular simulated plant individual and how this responds to climate change, management and rising CO2 concentrations. LÄS MER