Search for dissertations about: "drained"

Showing result 1 - 5 of 53 swedish dissertations containing the word drained.

  2. 1. Forests and Greenhouse gases. Fluxes of CO2, CH4 and N2O from drained forests on organic soils

    Author : Karin von Arnold; Leif Klemedtsson; Mats Nilsson; Björn Hånell; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Greenhouse gases; GHG; fluxes of CO2; CH4; drained forests; organic soils; Skogsbotanik; miljöaspekter; växthusgaser; Water in nature and society; Vatten i natur och samhälle;

    Abstract : One of the largest environmental threats believed to be facing us today is global warming due to the accumulation of green house gases (GHG). The concentrations of GHG in the atmosphere are a result of the net strength of different sinks and sources. READ MORE

  4. 2. Land use GHG emissions and mitigation options, simulated by CoupModel

    Author : Hongxing He; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; GHG; CO2; N2O; forest; drained peatland; clay soil; willow; soil nitrate leaching; modeling; CoupModel; GLUE; Land use; mitigation option; cost benefit analysis;

    Abstract : Climate change and greenhouse gas (GHG) emissions are one of the major challenges to the humankind of 21st Century. This thesis focuses on understanding, estimating and suggesting mitigation of the GHG emissions (mainly N2O and CO2) from the land use sector, specifically from forest ecosystems on drained peatlands but also from willow production on agricultural clay soil. READ MORE

  5. 3. Greenhouse gas fluxes from drained peatland : Measurement techniques and management impacts

    Author : Hannes Keck; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Agricultural use of drained peatlands has significant implications for national greenhouse gas (GHG) emission inventories. Once drained, peatlands emit large amounts of carbon dioxide (CO2), may become small methane (CH4) sinks and, with nitrogen fertilisation, may emit large quantities of nitrous oxide (N2O). READ MORE

  6. 4. Land use effects on nitrous oxide emission from drained organic soils

    Author : Per Weslien; Göteborgs universitet; []
    Keywords : Greenhouse gas emissions; N2O; Peat soils; Land use;

    Abstract : Since industrialisation, the atmospheric concentration of greenhouse gases (GHG) has increased significantly. The most important anthropogenic GHGs are carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). N2O is of major concern for two reasons; i) it is a potent GHG responsible for 6. READ MORE

  7. 5. The greenhouse gas balance of drained forest landscapes in boreal Sweden

    Author : Cheuk Hei Marcus Tong; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Forest drainage has been extensively used to facilitate forest growth in Fennoscandinavia. However, its impact on the ecosystem carbon (C) and greenhouse gas (GHG) balances is limited, particularly in the large area of hemiboreal and boreal Sweden. READ MORE