Sökning: "terrestrial organic matter"
Visar resultat 16 - 20 av 92 avhandlingar innehållade orden terrestrial organic matter.
16. Brownification of freshwaters - the role of dissolved organic matter and iron
Sammanfattning : The term brownification refers to the trend of increasing water color, i.e. the water becoming browner, which has been observed throughout the northern hemisphere over the last decades. Brownification has both ecological and societal implications. LÄS MER
17. Phytoplankton drivers in a marine system influenced by allochthonous organic matter – the Baltic Sea
Sammanfattning : Climate change scenarios predict that seawater temperature and precipitation will increase in the Baltic Sea region during the next century. In the northern part of the Baltic Sea, increasing inflows of the terrestrial allochthonous dissolved organic matter (ADOM) are expected to be a major consequence of elevated rainfall, which can alter light and nutrient availability for phytoplankton. LÄS MER
18. Temperature sensitivity of soil carbon decomposition : molecular controls and environmental feedbacks
Sammanfattning : The world's soils contain three times as much carbon as the atmosphere. Thus, any changes in this carbon pool may affect atmospheric CO₂ levels with implications for climate change. Anthropogenic contributions to global carbon and nitrogen cycles have increased in the last century. LÄS MER
19. Causes and consequences of Gonyostomum semen blooms
Sammanfattning : Aquatic ecosystems provide essential ecosystem services, but are also highly vulnerable to global change. Climate change, eutrophication and browning, for example, collectively drive the increase of harmful algal blooms in freshwaters. LÄS MER
20. Organic geochemical investigation of sources, transport and fate of terrestrial organic matter in the southeast Laptev Sea
Sammanfattning : Permafrost carbon stores have been suggested to react to warming trends with increased terrestrial loading to its coastal waters. Presently, the warming has been seen to be especially high in the East Siberian Arctic and the fate of the major release of terrestrial matter to these coasts is yet to be detailed. LÄS MER