Sökning: "biome"

Visar resultat 1 - 5 av 15 avhandlingar innehållade ordet biome.

  1. 1. Geophysical Applications of Vegetation Modeling

    Detta är en avhandling från Max Planck Institute for Biogeochemistry Postfach 10 01 64D-07701 Jena Germany

    Författare :Jed O Kaplan; [2001]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; Växtbiokemi; Plant biochemistry; CH4; CO2; stable isotopes; carbon cycle; wetland; ice core; methane; Holocene; mammoths; tundra; ice age; LGM; biogeography; biome; biogeochemistry; Vegetation model; Miljökemi; Physical geography; geomorphology; pedology; cartography; climatology; Fysisk geografi; geomorfologi; marklära; kartografi; klimatologi;

    Sammanfattning : This thesis describes the development and selected applications of a global vegetation model, BIOME4. The model is applied to problems in high-latitude vegetation distribution and climate, trace gas production, and isotope biogeochemistry. LÄS MER

  2. 2. Modelling the vegetation of the Earth

    Detta är en avhandling från Plant Ecology and Systematics, Lund University

    Författare :Alex Haxeltine; [1996]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; fraction absorbed photosynthetically active radiation; photosynthesis; canopy conductance; plant functional types; leaf area index; net primary production; vegetation distribution; biome; terrestrial biosphere model; biogeography; climate change; Last Glacial Maximum; Plant ecology; Växtekologi;

    Sammanfattning : This thesis describes the development and application of an equilibrium terrestrial biosphere model, BIOME3. The model simulates vegetation distribution and biogeochemistry, and couples vegetation distribution directly to biogeochemistry. LÄS MER

  3. 3. Natural and social dimensions of forest carbon accounting

    Detta är en avhandling från Lund University, Faculty of Science, Department of Physical Geography and Ecosystem Science

    Författare :Wilhelm Dubber; [2018]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Forest carbon fluxes; REDD ; boreal forest; LPJ-GUESS; BIOME-BGC; remote sensing;

    Sammanfattning : Global forests store large amounts of carbon both in living biomass and in the soil. The ability of forests to counteract climate change by acting as carbon sinks have been recognized in global climate politics, such as the 2015 Paris agreement which calls for national commitments to reduce greenhouse gas emissions. LÄS MER

  4. 4. Secondary succession in tropical dry forests : drivers and mechanisms of forest regeneration

    Detta är en avhandling från ; Southern Swedish Forest Research Centre, Swedish University of Agricultural Sciences

    Författare :Geraldine Derroire; Sveriges lantbruksuniversitet.; [2016]
    Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Secondary succession is a complex process involving numerous factors acting across scales. Understanding secondary succession in tropical dry forests is important for the conservation and restoration of this highly threatened biome. LÄS MER

  5. 5. Biophysical and Human Controls of Land Productivity under Global Change : Development and Demonstration of Parsimonious Modelling Techniques

    Detta är en avhandling från Lund University, Faculty of Science, Department of Physical Geography and Ecosystem Science

    Författare :Florian Sallaba; [2016-11]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Ecosystem Modelling; Meta-modelling; Net Primary Production; Global Change; Model coupling;

    Sammanfattning : Net primary production (NPP) serves as an indicator for plant-based resources such as food, timber and biofuel for human appropriation. It is defined by the annual production of plant matter and is mainly controlled by climate and human activities. Climate change in combination with human activities is altering NPP. LÄS MER