Essays about: "markkol"

Showing result 1 - 5 of 10 essays containing the word markkol.

  1. 1. Markkolets betydelse för åkermarkens bördighet : vilka effekter kan väntas av tillförd biokol och andra kolinlagrande åtgärder

    University essay from SLU/Dept. of Biosystems and Technology (from 130101)

    Author : Karolina Johansson; [2021]
    Keywords : kolcykel; mineraljord; organogen jord; certifiering; mullhalt;

    Abstract : Biokol är en möjlig kandidat till att motverka den höga koldioxidhalten i atmosfären. Genom pyrolysering av biomassa bildas biokol, som är en hårdare inbunden form av kol. Detta gör att biokol bryts ner långsammare. READ MORE

  3. 2. How is soil carbon stock in old-growth boreal forests affected by management?

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Jenny Dahl; [2018]
    Keywords : forest management; unmanaged forest; harvesting effects; mineral soil; skogsskötsel; obrukad skog; avverkningseffekt; mineraljord;

    Abstract : Boreal forests are able to store large amounts of carbon in soil and biomass, and forest management is considered an important strategy for mitigating climate change. Sweden has a long history of forest management that have intensified during the last century, but there are still old-growth forests that have not been disturbed by management. READ MORE

  4. 3. Will substituting fossil fuels with biofuels lead to a net reduction in CO2 emissions? : The case of district heating in Norrköping municipality

    University essay from Stockholms universitet/Institutionen för naturgeografi

    Author : Stina Ljungberg; [2018]
    Keywords : Forest residue; slash; bio-based economy; sustainable energy; Grot; biobaserad ekonomi; hållbar energi;

    Abstract : With global warming and the international, national and local goals of reducing greenhouse gas net emissions, the phasing out of fossil fuels are of great importance. One energy source resulting in nearly no net emissions are biofuels. READ MORE

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

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

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

    Abstract : 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. READ MORE

  6. 5. Impact of Crop Diversity, Fertilization and Legumes on Soil Organic Carbon in Grasslands

    University essay from Lunds universitet/Miljövetenskaplig utbildning

    Author : Kristina Witzgall; [2016]
    Keywords : Soil organic carbon; soil quality; agricultural productivity; perennial production grassland; fertilization; crop diversity; soil carbon; Earth and Environmental Sciences;

    Abstract : Agricultural soil quality is decreasing as a result of the expansion and intensification of agriculture. A key indicator of soil quality is soil organic carbon (SOC) which is degraded when land is converted from natural to cultivated systems and subject to intensive agricultural land use, reflecting reduced soil fertility and productivity. READ MORE