Sökning: "Dissolved CH4"

Visar resultat 11 - 15 av 15 uppsatser innehållade orden Dissolved CH4.

  1. 11. Soil solution DOC dynamics during winter in boreal hillslopes

    Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaper

    Författare :Paulina Bastviken; [2014]
    Nyckelord :;

    Sammanfattning : When plants and animals die they are decomposed into microscopic particles of organic carbon. In the ground, these carbon particles are dissolved in the soil water and eventually transported to the streamchannel with the flow of the groundwater. LÄS MER

  3. 12. The importance of winter for carbon emissions from boreal lakes

    Master-uppsats, Institutionen för ekologi, miljö och geovetenskap

    Författare :Cecilia Larsson; [2013]
    Nyckelord :Carbon dioxide; methane; winter accumulation; boreal lakes; dissolved organic carbon;

    Sammanfattning : The aim of this study was to investigate the importance of winter season for the production of carbon dioxide (CO2) and methane (CH4) in humic and clear-water boreal aquatic systems. The study was conducted in 16 experimental ponds in northern Sweden during the winter of 2013. LÄS MER

  4. 13. Longitudinal heterogeneity of two prereservoirs in the Harz mountains (Germany)

    Master-uppsats, SLU/Dept. of Aquatic Sciences and Assessment

    Författare :Andrea Perz; [2013]
    Nyckelord :drinking water reservoirs; green house gases; monitoring; methane; floating chamber;

    Sammanfattning : The understanding of longitudinal heterogeneity in pre-reservoirs is crucial for the development of a sophisticated monitoring program which shall be able to represent the water bodies in a resource efficient way. The present study was conducted at two prereservoirs in the Harz mountains (Germany), the Rappbode and Hassel pre-reservoirs which are connected to the largest drinking water reservoir in Germany (Rappbode reservoir). LÄS MER

  5. 14. Variations of methane emissions within and between three hydroelectric reservoirs in Brazil

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Institutionen för ekologi och genetik

    Författare :Karin Grandin; [2012]
    Nyckelord :CH4 emissions; tropical reservoirs; hydroelectricity; flooded vegetation;

    Sammanfattning : Hydroelectricity is an energy resource which for a long time has been consideredenvironmentally neutral regarding greenhouse gas emission. During the last years this viewhas changed. LÄS MER

  7. 15. Dissolved methane dynamics in a subarctic peatland

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

    Författare :Zhendong Wu; [2012]
    Nyckelord :permafrost; pore water; Dissolved CH₄; CH₄ solubility; CH₄ flux; physical geography; peatland; geography; subarctic; Earth and Environmental Sciences;

    Sammanfattning : Popular science: Methane (CH₄) is a colorless, odorless, tasteless gas that can trap heat in the atmosphere. It is believed to be a powerful greenhouse gas. LÄS MER