Sökning: "soil"

Visar resultat 1 - 5 av 2453 uppsatser innehållade ordet soil.

  1. 1. Greenhoue gas flux over a 50-year post permafrost thaw gradient. Decomposition of soil organic carbon from the Swedish tussock tundra.

    Master-uppsats, Göteborgs universitet/Institutionen för geovetenskaper

    Författare :Johan Martinelli; [2020-02-11]
    Nyckelord :greenhouse gas; permafrost;

    Sammanfattning : As the globe is warming the extent of permafrost drastically decreases in the high latitudes. Upon thawthe stored soil organic carbon (SOC) undergoes rapid decomposition and is partly released as trace gasesto the atmosphere. LÄS MER

  2. 2. Översilningsytors potential att rena lakvatten från PFAS

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Emma Larsson; [2020]
    Nyckelord :PFAS; leachate; overland flow area; waste facility; waste; landfill; PFAS; lakvatten; översilningsytor; avfallsanläggning; avfall; deponi;

    Sammanfattning : Poly- and perfluorinated alkyl substances (PFASs) is a group of more than 5000 different substances, of which all consist of a fluorinated carbon chain resulting in a strong bond. Most of these substances are shown to be persistent, bioaccumulative and toxic for both humans and the environment. LÄS MER

  3. 3. Modelling gross primary production in semi-arid regions: effects on carbon uptake of intensive agriculture in southern Kenya

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

    Författare :Malin Ahlbäck; [2020]
    Nyckelord :Physical Geography; Ecosystem Analysis; GPP; Africa; Kenya; Land cover changes; Cropland; Remote sensing; Sentinel-2; Earth and Environmental Sciences;

    Sammanfattning : Background and aim: Gross primary production (GPP) is the largest global carbon (C) flux and an important component for counteracting anthropogenic CO2 emissions, understanding vegetation dynamics, and sustaining universal human standards. Africa plays a prominent role in the global C cycle, though our understanding of GPP dynamics is largely hampered by a paucity of ground-based observations. LÄS MER

  4. 4. Contamination analysis of the landfill Rösaberg inerta massor : Risk assessment and investigation of the contaminant distribution

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Westander Lisa; [2020]
    Nyckelord :Landfill; MODFLOW; Risk assessment; Site-specific guidelines; Deponi; MODFLOW; Riskbedömning; Platsspecifika riktvärden;

    Sammanfattning : The dispersion of contaminants deriving from landfills poses a risk to the surrounding environment and human health. Old landfills are treated with extra precaution, due to their poorer construction, less stringent operation and lack information regarding the waste content. Vetlanda municipality has identified 48 old landfills. LÄS MER

  5. 5. Urea’s ability to break the life cycle of Nematodirus spp. in situ : a field study on sheep in New Zealand

    Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Clinical Sciences

    Författare :Carolina Falkman; [2020]
    Nyckelord :Nematodirus; Strongyles; sheep; nematodes; urea; nitrogen; anthelmintic; resistance;

    Sammanfattning : Nematodirus spp., along with other gastrointestinal nematodes, are a common cause of disease among sheep and remains a major animal health concern, and cause of reduced productivity for sheep farmers around the world. LÄS MER