Blar i Faculty of Mathematics and Natural Sciences på emneord "Permafrost"
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Climate in Svalbard 2100
(Research report, 2019-01)This report was commissioned by the Norwegian Environment Agency in order to provide basic information for use in climate change adaptation in Svalbard. It includes descriptions of historical, as well as projections for ... -
Geomicrobial characterisation of a 60 m long permafrost core, taken over a future CO2 storage site at Svalbard
(Master thesis, 2014-09-11)In connection with a planned CO2 storage pilot project in the Arctic, a 60 m long permafrost core was drilled in Adventdalen, Svalbard, representing the poorly studied deep permafrost ecosystems. The on-shore drilling was ... -
How will thawing permafrost affect the microbial abundance and diversity in the Arctic?
(Master thesis, 2020-07-09)Permafrost, permanently frozen soil, constitutes a major portion of the Earth’s terrestrial cryosphere and represents a unique niche for cold-adapted microorganisms. As the global temperature increases, it is still unknown ... -
Implications of a changing Arctic on microbial communities: Following the effects of thawing permafrost from land to sea
(Doctoral thesis, 2018-06-14)Climate change has severe impacts in the Arctic, where permafrost is thawing, glaciers are retreating and sea ice is melting. These physical changes are not only affecting large predators like polar bears, but also microscopic ... -
Input of easily available organic C and N stimulates microbial decomposition of soil organic matter in arctic permafrost soil
(Peer reviewed; Journal article, 2014-08)Rising temperatures in the Arctic can affect soil organic matter (SOM) decomposition directly and indirectly, by increasing plant primary production and thus the allocation of plant-derived organic compounds into the soil. ... -
Microbial community composition shapes enzyme patterns in topsoil and subsoil horizons along a latitudinal transect in Western Siberia
(Peer reviewed; Journal article, 2015-04)Soil horizons below 30 cm depth contain about 60% of the organic carbon stored in soils. Although insight into the physical and chemical stabilization of soil organic matter (SOM) and into microbial community composition ... -
Microbial nitrogen dynamics in organic and mineral soil horizons along a latitudinal transect in western Siberia
(Peer reviewed; Journal article, 2015-05-12)Soil N availability is constrained by the breakdown of N-containing polymers such as proteins to oligopeptides and amino acids that can be taken up by plants and microorganisms. Excess N is released from microbial cells ... -
Peak-summer energy and carbon fluxes on a thawing permafrost site
(Master thesis, 2018-12-13)We present measurements of surface fluxes taken between 7 July and 6 August 2017, on a palsa mire near the Iškoras mountain in Finnmark, northern Norway. Palsa mires are a particular landform found at the edge of the ...