Sökning: "kolcykel"
Visar resultat 1 - 5 av 6 uppsatser innehållade ordet kolcykel.
1. The Susceptibility of the Circumpolar North to Zombie Wildfire : An Exploratory Case Study of Sweden
Master-uppsats, Södertörns högskola/MiljövetenskapSammanfattning : Climate change is warming the North and exposing its immense carbon stores not only to wildfire disturbances, but overwintering, or zombie, fire. These remnants of summer fires can spend months smouldering under the surface, hidden under the protection of layers of snow, burning through immense amounts of carbon, which is then released into the atmosphere, further exacerbating climate change. LÄS MER
2. Markkolets betydelse för åkermarkens bördighet : vilka effekter kan väntas av tillförd biokol och andra kolinlagrande åtgärder
Kandidat-uppsats, SLU/Dept. of Biosystems and Technology (from 130101)Sammanfattning : 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. LÄS MER
3. Impact of fire and frost drought events on vegetation greenness and albedo in Subarctic Scandinavia
Master-uppsats, Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapSammanfattning : With climate change, the frequency in climate extremes such as drought, heavy rainfalls, and extreme temperatures is predicted to increase. These extremes can potentially stress and damage vegetation over large areas, leading to altered carbon cycle, vegetation greenness, albedo, and shifted species composition. LÄS MER
4. Linking Jet Stream Variability and the NAO to the Terrestrial Carbon Cycle in Europe
Kandidat-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : The terrestrial carbon cycle is a part of the global carbon cycle, where one important component is the terrestrial vegetation. Terrestrial vegetation largely controls the land surface carbon exchanges and leverage the atmospheric greenhouse gas concentrations, significantly affecting the trajectory of global warming. LÄS MER
5. Variability of summer CH4 and CO2 flux rates in and between three large Swedish lakes : A spatio-temporal field study
Kandidat-uppsats, Linköpings universitet/Tema MiljöförändringSammanfattning : Understanding of natural greenhouse gas (GHG) cycles is crucial for making GHG budgets, which work as basis in climate change and global warming policy programs. Lakes as a source for GHG activity have only recently been included in global GHG budgets, and most studies of lake GHG flux rates are conducted on lakes <10 km2, which only comprise roughly half of the global lake area—making data of large lake flux rates scarce. LÄS MER