Sökning: "LPJ-GUESS"

Visar resultat 6 - 10 av 35 uppsatser innehållade ordet LPJ-GUESS.

  1. 6. Evaluation of the LPJ-GUESS crop model under ambient and elevated CO2 concentrations.

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

    Författare :Annika Nitschke; [2022]
    Nyckelord :LPJ-GUESS; free-air carbon dioxide enrichment experiments; elevated CO2; climate change; wheat yield; Earth and Environmental Sciences;

    Sammanfattning : In the future atmospheric CO2 concentrations might exceed 550 ppm according to the RCP8.5 scenario by mid-century from our current 410 ppm, while our world population is projected to surpass the 9.7 billion threshold within the same time span. This challenge leads to the raising of questions addressing future food security. LÄS MER

  3. 7. The land carbon sink of Lithuanian forests in the light of climate change: A model approach

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

    Författare :Patricija Marijauskaite; [2022]
    Nyckelord :Geography; Physical geography; Ecosystem analysis; Ecosystem modelling; LPJ-GUESS; Climate change; Forest sequestration; Land carbon sink; Norway spruce; Scot s pine; Silver birch; monoculture; silviculture; NPP; NBP; Earth and Environmental Sciences;

    Sammanfattning : Forests form the backbone of the European terrestrial carbon sink (State Forest Service & Ministry of Environment, 2018). As the European Union (EU) strives to become climate neutral by 2050, forests are accounted for the natural carbon absorption mechanism (European Commission, n.d.). LÄS MER

  4. 8. Tundra carbon cycling in relation to sea-ice decline in a warming Arctic

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

    Författare :Juliane Glinski; [2022]
    Nyckelord :sea-ice decline; warming Arctic; earlier growing season; arctic tundra; heterotrophic and autotrophic respiration; climate warming; Earth and Environmental Sciences;

    Sammanfattning : We set out to investigate whether arctic tundra acted as a sink or source of carbon dioxide (CO2) between 1980-2014 and to relate changes in the net carbon balance to Arctic sea-ice decline. We want to understand how climate change and arctic warming influence arctic carbon cycling. LÄS MER

  5. 9. Testing the potential to evaluate vegetation optical depth with ecosystem water dynamics in a temperate forest

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

    Författare :Ainahu Abdul Hamid; [2021]
    Nyckelord :Physical geography; Ecosystem analysis; Vegetation optical depth; Temperate Forest; Climate; LPJ-GUESS; Evapotranspiration; Leaf water potential; Isohydricity; Hydraulic failure; Carbon starvation; Earth and Environmental Sciences;

    Sammanfattning : Warming trends have been associated with drought which induces and heightens agents and factors that cause tree mortality. Remotely sensed observations are increasingly being used in vegetation studies and are obtained from Earth observation satellites. LÄS MER

  7. 10. Expressing ecosystem model output and Swedish forestry goals with composite indictors

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

    Författare :Nicolas Tarasewicz; [2021]
    Nyckelord :Physical Geography; Ecosystem Analysis; forest management; multifunctionality; LPJ-GUESS; ecosystem services; composite indicator; climate change; biodiversity; SDGs; Sweden; Earth and Environmental Sciences;

    Sammanfattning : Forest ecosystems provide a wide range of services necessary for maintaining environmental health and human well-being. Ecosystem models help inform how various management strategies respond in different regions to changing climate conditions. LÄS MER