Essays about: "inland waters"
Showing result 11 - 15 of 16 essays containing the words inland waters.
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11. Spatial variability of aquatic carbon dioxide and methane concentrations : A study of a hemi-boreal stream
University essay from Linköpings universitet/Tema MiljöförändringAbstract : Inland waters such as streams and lakes have recently been found to be supersaturated with both carbon dioxide (CO2) and methane (CH4) – the high concentrations resulting in significant natural emissions of greenhouse gases (GHGs). Previous studies have shown that streams emit particularly large amounts of GHGs per area covered, but the spatial variability is very high and has rarely been studied in detail. READ MORE
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12. Historical land use in Scandinavia and its influence on carbon storage in soil and peat in the boreal landscape
University essay from Umeå universitet/Institutionen för ekologi, miljö och geovetenskapAbstract : The history of land utilization in Scandinavia is characterized by two major periods of open landscape. The first one temporal ranged from cal. AD 0-500 and the second one ranged from cal. AD 1200-1900 including the medieval crisis in Scandinavia. READ MORE
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13. Impact of photo-chemical processing of dissolved organic carbon on the bacterial respiratory quotient in aquatic ecosystems
University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapAbstract : Dissolved organic carbon (DOC) enters inland waters from the surrounding terrestrial ecosystems, and is assimilated by bacterioplankton, mineralizing it to carbon dioxide (CO2). This bacterial respiration (BR) is an important part of carbon processing in freshwater, but it is also a process of global significance; in oceans and inland waters combined, BR is probably the largest single sink of organic carbon on Earth. READ MORE
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14. The suitability of using Landsat TM-5 Images for estimating chromophoric dissolved organic matter in subarctic Lakes
University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskapAbstract : Recent trends of permafrost thawing in the subarctic are expected to cause increased release of dissolved organic carbon (DOC) to inland waters, which might have cascading effects on downstream aquatic ecosystems and release of CO2 to the atmosphere. This study therefore aimed at evaluating the applicability of an empirical band ratio algorithm for estimating chromophoric dissolved organic matter (CDOM; a proxy for DOC) from the easily accessible satellite images Landsat TM-5, to counter the inaccessibility of the region in general. READ MORE
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15. Observation of methanogenesis and potential iron-dependent anaerobic oxidation of methane in old lake sediments, a study of two boreal forest lakes.
University essay from Institutionen för biologisk grundutbildningAbstract : Organic and inorganic carbon can enter inland waters in different ways, and often a considerable amount of this carbon is coming from terrestrial input. Once this terrestrial carbon enters a lake, the carbon may be degraded, mineralized or eventually buried in the sediment. READ MORE
