Search for dissertations about: "biogenic carbon"

Showing result 1 - 5 of 26 swedish dissertations containing the words biogenic carbon.

  1. 1. Land-atmosphere interaction of a subarctic palsa mire

    University dissertation from GeoBiosphere Science Centre, Department of Physical Geography and Ecosystems Analysis, Lund University, Sölvegatan 12, 223 62, Lund, Sweden

    Author : Marcin Jackowicz-Korczynski; Lund University.; Lunds universitet.; [2009]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; eddy covariance; chamber; methnaol; isoprene; nonmethane hydrocarbons; methane; carbon dioxide; carbon; mire; permafrost; subarctic; palsa; greenhouse gas;

    Abstract : The main objective of this thesis was to quantitatively estimate the gaseous exchange of carbon dioxide (CO2) and methane (CH4) between a subarctic wetland ecosystem and the atmosphere. Additionally some initial estimates of the carbon input to the atmosphere of nonmethane hydrocarbons (NMHCs) were also obtained by combining different techniques in a joint setting. READ MORE

  2. 2. Carbon in Boreal Streams Isotopic Tracing of Terrestrial Sources

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Audrey Campeau; Uppsala universitet.; [2019]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The boreal biome comprises vast areas of coniferous forests, dotted with millions of peatlands. Plants harbouring these ecosystems fix CO2 from the atmosphere, which is later incorporated into the vegetation biomass and subsequently buried in soils. READ MORE

  3. 3. Carbon Recovery in A Dual Fluidized Bed Gasifier

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Sébastien Pissot; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; gasification; recycling; dual fluidized bed; chemical looping gasification; circular economy; carbon recovery; biomass; plastic waste;

    Abstract : As the concept of a circular economy gains acceptance and awareness of climate change and its disastrous consequences increases, the ways in which we produce the carbon-based goods upon which so much of our economy depends need to change. Society must end its reliance on fossil carbon resources and shift to renewable sources that enable the establishment of a carbon cycle. READ MORE

  4. 4. Exploring climate impacts of timber buildings The effects from including non-traditional aspects in life cycle impact assessment

    University dissertation from Stockholm : KTH Royal Institute of Technology

    Author : Diego Peñaloza; KTH.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; life cycle assessment LCA ; timber buildings; biobased building materials; low-energy buildings; forest products; climate impact assessment; biogenic emissions; carbon storage; timing of emissions; Industriell ekologi; Industrial Ecology; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : There is an urgency within the building sector to reduce its greenhouse gas emissions and mitigate climate change. An increased proportion of biobased building materials in construction is a potential measure to reduce these emissions. READ MORE

  5. 5. The role of biobased building materials in the climate impacts of construction Effects of increased use of biobased materials in the Swedish building sector

    University dissertation from Stockholm, Sweden : KTH Royal Institute of Technology

    Author : Diego Peñaloza; KTH.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LCA; timber buildings; timber bridges; biobased building materials; dynamic LCA; climate change mitigation; building stock; scenario analysis; biogenic carbon; Civil and Architectural Engineering; Byggvetenskap;

    Abstract : A significant share of the global climate change impacts can be attributed to the construction sector. One mitigation strategy is increasing the use of biobased materials. Life cycle assessment (LCA) has been used to demonstrate the benefits of this, but forest complexities create uncertainty due to omission of key aspects. READ MORE