Sökning: "plant area index"

Visar resultat 1 - 5 av 45 uppsatser innehållade orden plant area index.

  1. 1. Spatial downscaling of gridded soil moisture products using optical and thermal satellite data: the effects of using different vegetation indices

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

    Författare :Tómas Halldórsson Alexander; [2023]
    Nyckelord :Physical Geography and Ecosystem Analysis; Remote Sensing; Soil moisture; Downscaling; Vegetation index; Earth and Environmental Sciences;

    Sammanfattning : Soil moisture (SM) plays an important role in the exchange of heat and water between the surface and atmosphere, impacting water and energy cycles and the climate. Satellite remote sensing offers a global-scale estimation of SM; however, the coarse resolutions of satellite SM products, typically ranging from 25-50 km, are unsuitable for regional analysis. LÄS MER

  3. 2. Correlation between Normalized Difference Vegetation Index (NDVI) and in vitro organic matter digestibility (IVOMD) of reindeer pasture plants : Korrelation mellan Normalized Difference Vegetation Index (NDVI) och smältbarhet av renbetesväxter i vomvätska in vitro (VOS)

    Master-uppsats, SLU/Dept. of Animal Nutrition and Management

    Författare :Jannica Helmersson; [2023]
    Nyckelord :Normalized Difference Vegetation Index; NDVI; in vitro organic matter digestibility; IVOMD; VOS; caribou; Rangifer tarandus; reindeer pasture plants; drone;

    Sammanfattning : Renen livnär sig på många olika betesväxter och den följer växtfenologins utveckling under barmarkssäsongen, vilket resulterar i högkvalitativt foderintag. Levande växtbiomassa kan uppskattas på landskapsnivå genom att använda vegetationsindex som värderar vegetation utifrån spektrala mätningar. LÄS MER

  4. 3. Tree growth and field vegetation in forest edge zones on a property in southeast Sweden

    Kandidat-uppsats, Linnéuniversitetet/Institutionen för skog och träteknik (SOT)

    Författare :Pieter van Tongeren; [2023]
    Nyckelord :tree growth; diversity; field vegetation; edge zones; edge effect;

    Sammanfattning : Summary  In the 1990s a new way of thinking about forestry started. One of the effects of the changing silvicultural practices was that the size of clearcuts became smaller. As the felling areas were reduced in size, the areas where young and older forest meet grew, with this also the occurrence of edge zones increased. LÄS MER

  5. 4. KLIMATNEUTRAL- OCH ENERGISMART BETONGTILLVERKNING : En energiteknisk State of the art-studie och analys

    Master-uppsats, Mälardalens universitet/Akademin för ekonomi, samhälle och teknik

    Författare :Abel Tewelde; [2022]
    Nyckelord :Sustainability; energy systems; recycling techniques; environmental problems; winter concrete production; life cycle and environmental product declarations; concrete factory; heating systems; calcined clay; and bio boiler; Hållbarhet; energisystem; återvinningstekniker; miljöproblem; vintertillverkning; livscykel- och miljövarudeklarationer; betongfabriker; uppvärmningssystem; kalcinerad lera och biopannor;

    Sammanfattning : In abstract, it can be emphasized that the concrete industry influences and is significant based on the sustainability dimensions. The concrete industry is also an industry where actors with different backgrounds interact to achieve the different climate goals. LÄS MER

  7. 5. Using NDVI Time-Series to Examine Post-fire Vegetation Recovery in California

    Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Viktor Wu; [2022]
    Nyckelord :fire; California; NDVI; land cover; vegetation; post-fire recovery;

    Sammanfattning : Over the past couple of decades, fires have experienced changes on a global scale. These changing fire regimes point to an alarming direction where fire-dependent ecosystems are experiencing a decline in burned area, while fire-independent ecosystems are experiencing an increase. LÄS MER