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Visar resultat 21 - 25 av 32 uppsatser som matchar ovanstående sökkriterier.

  1. 21. KLIMATBUDGET - En analys av preferenser mellan konsumtion av flygresor, bilresor och nötkött

    Kandidat-uppsats, Göteborgs universitet/Institutionen för nationalekonomi med statistik

    Författare :Mikaela Blomgren; Janina Öberg Berggren; [2019-09-25]
    Nyckelord :Climate budget; carbon dioxide budget; sustainability; willingness to pay; preferences;

    Sammanfattning : Air transport, car transport and consumption of food are three factors that affect the climate, factors that can be changed by an individual’s decisions. By using a web survey, this study aims to evaluate preferences between being able to travel by airplane, travel by car to work or school as well as consuming beef, which is a big climate burden within our diet. LÄS MER

  3. 22. Carbon dioxide in agricultural streams : Magnitude and patterns of an understudied atmospheric carbon source

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :My Osterman; [2018]
    Nyckelord :Carbon dioxide; streams; agriculture; catchment; floating chamber; Kendall s Tau; CORINE Land Cover;

    Sammanfattning : The role of streams in the global carbon budget was for a long time neglected, since they were considered passive transporters of carbon from land to sea. However, studies have shown that streams are often supersaturated in carbon dioxide (CO2), making them sources of carbon to the atmosphere. LÄS MER

  4. 23. Inlandsvatten som en del i den terrestra kolcykeln – uppskattningar och osäkerheter

    Kandidat-uppsats, Uppsala universitet/Luft-, vatten- och landskapslära

    Författare :Jacob Smeds; [2018]
    Nyckelord :carbon cycle; inland waters; carbon balance; kolcykeln; inlandsvatten; kolbalans;

    Sammanfattning : Inlandsvatten, exempelvis sjöar och floder, har en betydande roll för den globala kolcykeln. Förutom att dessa vatten transporterar kol mellan kontinenterna och havet så förekommer en mängd processer som påverkar kolomsättningen i dessa system. LÄS MER

  5. 24. Greenhouse gas flux at a temperate peatland : a comparison of the eddy covariance method and the flux-gradient method

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

    Författare :Kristofer Karlsson; [2017]
    Nyckelord :Physical Geography and Ecosystem analysis; micrometeorology; eddy covariance; flux-gradient method; methane; carbon dioxide; flux; peatland; Earth and Environmental Sciences;

    Sammanfattning : Northern peatlands have accumulated carbon for thousands of years and currently hold around one third of all soil carbon on earth. Large uncertainties are associated with predictions of how northern peatlands will react to climate change. LÄS MER

  7. 25. Land- atmosphere exchange of carbon dioxide in a high Arctic fen : importance of wintertime fluxes

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

    Författare :Anna Lindstein; [2015]
    Nyckelord :geography; physical geography; ecosystem analysis; NEE; eddy covariance; Arctic; CO2; wintertime flux; Zackenberg; Earth and Environmental Sciences;

    Sammanfattning : Global warming is predicted to have a major impact on the ecosystems over the polar latitudes including the Arctic region which is thought to be especially sensitive to changes in climate. So far, the research studying greenhouse gases in the Arctic has primarily been focused on the short and intense growing season when carbon flux is mostly driven by plants and soil microorganisms. LÄS MER