Essays about: "Kolcykel"

Showing result 1 - 5 of 6 essays containing the word Kolcykel.

  1. 1. The Susceptibility of the Circumpolar North to Zombie Wildfire : An Exploratory Case Study of Sweden

    University essay from Södertörns högskola/Miljövetenskap

    Author : Stephanie Louise Hurst; [2021]
    Keywords : Wildfire; zombie fire; overwintering; holdover; carbon cycle; climate change; Circumpolar North; Sweden; Skogsbrand; zombiebrand; övervintrande; kolcykel; klimatförändring; Cirkumpolär Norr; Sverige;

    Abstract : 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. READ MORE

  3. 2. 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

  4. 3. Impact of fire and frost drought events on vegetation greenness and albedo in Subarctic Scandinavia

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Elin Backström; [2021]
    Keywords : Physical Geography and Ecosystem analysis; Vegetation Greenness; Albedo; Fire; Frost Drought; Earth and Environmental Sciences;

    Abstract : 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. READ MORE

  5. 4. Linking Jet Stream Variability and the NAO to the Terrestrial Carbon Cycle in Europe

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Emma Rosengren; [2020]
    Keywords : Terrestrial; Carbon Cycle; Jet Latitude; Jet Speed; NAO; NDVI; Jordbunden; Kolcykel; Jetlatitud; Jethastighet; NAO; NDVI;

    Abstract : 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. READ MORE

  6. 5. Variability of summer CH4 and CO2 flux rates in and between three large Swedish lakes : A spatio-temporal field study

    University essay from Linköpings universitet/Tema Miljöförändring

    Author : Isak Nilsson; Filip Seifarth; [2020]
    Keywords : Large lakes; Freshwater; Flux chambers; Emissions; Ebullition; Diffusion; Carbon cycle; Carbon budget; Methane budget; Greenhouse gases; GHGs; Methane; CH4; Carbon dioxide; CO2; Variability; Spatial; Temporal; Stora sjöar; sötvatten; flödeskammare; utsläpp; bubblor; diffusion; kolcykel; kolbudget; metanbudget; växthusgaser; metan; CH4; koldioxid; CO2; variabilitet; rumslig; tidsmässig;

    Abstract : 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. READ MORE