Sökning: "CH₄ flux"

Visar resultat 21 - 25 av 28 uppsatser innehållade orden CH₄ flux.

  1. 21. Methane exchange between tree stems and atmosphere in a boreal forest

    Kandidat-uppsats, Lunds universitet/Fysiska institutionen

    Författare :Laura Reinelt; [2013]
    Nyckelord :CH4; flux; tree stem; boreal forest; Physics and Astronomy;

    Sammanfattning : Inte bara kor läcker metan... . LÄS MER

  3. 22. Estimating CO2 evasion from streams connected to a boreal lake : comparing three different methods

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

    Författare :Šárka Okrouhlíková; [2012]
    Nyckelord :Evasion; CO2; Boreal; Streams;

    Sammanfattning : There are different reservoirs of Carbon (C) on Earth and these reservoirs are closely linked to each other by the transport of C across different interfaces. The freshwater environment is one of the interfaces and an active component of the global C cycle. LÄS MER

  4. 23. 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

  5. 24. 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

  7. 25. Methane fluxes from the Baltic Sea : A first look at measured fluxes of shallow near-coastal waters using floating chambers

    Kandidat-uppsats, Tema vatten i natur och samhälle; Linköpings universitet

    Författare :Johan Svensson; Viktor Westerholm; [2010]
    Nyckelord :Methane emission; methane flux; ebullition; diffusion; shallow near-coastal waters; total fluxes; floating chambers.;

    Sammanfattning : Methane is an important green house gas as it is responsible for 15-20 % of the green house effect. Marine environments in general and shallow near-coastal waters specifically may be important contributors of methane emissions but are as of today poorly studied. LÄS MER