Essays about: "soil CO2 flux"
Showing result 1 - 5 of 13 essays containing the words soil CO2 flux.
-
1. Influence of permafrost disintegration on wetland carbon fluxes in Abisko, Sweden
University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapAbstract : The northern permafrost regions are experiencing a rapid warming as surface temperatures are rising, causing a disintegration of permafrost and a deepening of the active layer (AL). This releases previously frozen carbon, making it available for decomposition by microbes. READ MORE
-
2. Assessment of how environmental variables and vegetation structure influence peatland carbon fluxes
University essay from Uppsala universitet/Växtekologi och evolution; Uppsala universitet/Institutionen för biologisk grundutbildningAbstract : Boreal peatlands are important ecosystems from a carbon balance perspective because they are natural carbon sinks as a result of millennia of peat formation. However, due to climate change, these ecosystems are susceptible to changes in hydrology and temperature. READ MORE
-
3. Modelling gross primary production in semi-arid regions: effects on carbon uptake of intensive agriculture in southern Kenya
University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapAbstract : Background and aim: Gross primary production (GPP) is the largest global carbon (C) flux and an important component for counteracting anthropogenic CO2 emissions, understanding vegetation dynamics, and sustaining universal human standards. Africa plays a prominent role in the global C cycle, though our understanding of GPP dynamics is largely hampered by a paucity of ground-based observations. READ MORE
-
4. Energy balance closure, water balance, carbon exchange, and water use efficiency : observed and modeled outcomes for a managed, hemiboreal forest in Southern Sweden
University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapAbstract : The claims for the potential of boreal and sub-boreal forests to combat negative effects of climate change have been substantial with over half of Earth’s primary forests found within boreal and temperate regions of the Northern Hemisphere. Given the likely occurrence of more extreme climate events in the future, ascertaining a better understanding of how climate effects, such as profound fluctuations in precipitation, decreases in yearly snow, faster snow melt rates, variability in evapotranspiration due to environmental stress, and related changes in the energy, hydrological, and carbon cycles will change these northern, boreal landscapes is crucial. READ MORE
-
5. Land- atmosphere exchange of carbon dioxide in a high Arctic fen : importance of wintertime fluxes
University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapAbstract : Global warming is predicted to have a major impact on the ecosystems over the polar latitudes including the Arctic region which is thought to be especially sensitive to changes in climate. So far, the research studying greenhouse gases in the Arctic has primarily been focused on the short and intense growing season when carbon flux is mostly driven by plants and soil microorganisms. READ MORE
