Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"EnCHiL"”.
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Soil-atmosphere fluxes of CO2 and CH4 in annual and perennial cropping systems in southern Sweden
Annual cropping systems dominate agricultural grain production, but have been linked to several key environmental issues, such as loss of biodiversity and pollution of groundwater. Newly developed perennial grains may offer solutions to some of those problems. Their longer roots and growing seasons …
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Effects of soil temperature on Sphagnum moss litter quality and decomposition in a subarctic environment
High latitude peatlands play a significant role in global soil carbon budgets, attributed to the slow decomposition rate of Sphagnum mosses that facilitates carbon sequestration through the build-up of peat. As climate change is predicted to increase soil temperatures and decomposition rates of …
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Experimental warming of subarctic biocrust: Temporal responses of soil respiration and plant community
Biological soil crust, biocrust, is a significant contributor to biogeochemical cycles through nitrogen and carbon cycling. Further, it stabilizes soil, facilitates water infiltration, and mitigates soil erosion. The global biocrust cover is believed to decrease by about 25-40% in the next 60 years …
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SVALPEN Svalbard Radar Snow Penetration Experiment
Studying the extent and thickness of sea and glacial ice in a warming climate is important since they have both local and global significance in the form of feedback loops, climate effects, and ship transport, among others. While the extent of ice is well studied using satellite-based radar remote …
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Vegetation cover change on Tindfjöll mountains, Iceland, assessed by aerial photographs, topography, and climate
Climate change is having a great impact on the fragile High Latitude environment where warming is occurring at a rate at least double the global average. It is urgent to understand the relationship between climate and vegetation cover, which is playing an important role, as a carbon sink, for …
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Non-growing season CO2 fluxes of a boreal fen – key drivers and responses to anomalous winter conditions
Non-growing season carbon fluxes can contribute to a significant amount of the full-year ecosystem carbon balance. Year-round net ecosystem exchange (NEE) data from 17 years was used to analyse the non-growing season carbon dioxide (CO2) fluxes together with environmental and meteorological …
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Meteorological and geomorphological influence on harbor seal haul-out distribution behavior using drone imagery
Harbor seals in Kosterhavet National Park face critical challenges during summer months, as two sensitive life stages (pupping and molting) which are vital for the population’s success coincide in time with the increase in tourist activity. This study assessed how topography and meteorological …
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Influence of muskox carcasses on soil nutrients and vegetation in a High Arctic ecosystem in northeast Greenland
Hræ stórra spendýra geta haft veruleg áhrif á jarðveg og gróður þar sem þau falla til, einkum sökum aukinnar næringarefnaákomu. Slík áhrif eru sérstaklega mikilvæg í næringarsnauðum vistkerfum, s.s. freðmýrum, þar sem aukið framboð næringarefna getur haft langvarandi áhrif. Rannsóknir á þessum …
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Quantifying glacier melt enhancement due to dust deposition during the 2022 melt season. Tungnaárjökull glacier, South Iceland
Clean snow has the highest albedo of any natural surface, making snow-covered glaciers an important component of the Earth´s energy balance. However, the presence of light absorbing impurities such as mineral dust on glacier surfaces alters their reflective properties leading to a reduction in …
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Characterisation of Microphysical and Optical Properties of Atmospheric Aerosols in a High Arctic environment: Villum Research Station, NE Greenland
Atmospheric aerosols are solid or liquid phase particles which are suspended in ambient air. These particles have an impact on the climate through direct and indirect radiative forcing, and their measurement presents challenges in high latitude environments where concentrations may fall under the …
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Legacy effects of temperature alterations on microbial resistance and resilience to drying and rewetting
With warming in soils due to climate change, a series of secondary factors arise, which have multifaceted effects on soil microbial communities. Of these, alterations to soil moisture are among the most crucial to understanding how microbial functions will change in the face of climate change. As …