Sökning: "total organic carbon TOC"
Visar resultat 1 - 5 av 24 avhandlingar innehållade orden total organic carbon TOC.
1. Waterborne Carbon in Northern Streams : Controls on dissolved carbon transport across sub-arctic Scandinavia
Sammanfattning : Waterborne carbon (C) forms an active and significant part of the global C cycle, which is important in theArctic where greater temperature increases and variability are anticipated relative to the rest of the globe withpotential implications for the C cycle. Understanding and quantification of the current processes governing themovement of C by connecting terrestrial and marine systems is necessary to better estimate future changes ofwaterborne C. LÄS MER
2. Dissolved organic carbon in tropical watersheds : Linking field observation and eco-hydrological modelling
Sammanfattning : Dissolved organic carbon (DOC) is a general description of the organic material dissolved in water. DOC is an important source of energy, carbon, and nutrient transfers from terrestrial to aquatic ecosystems. The export of DOC into aquatic ecosystems may contribute to the carbon balance of terrestrial ecosystems and to water degradation. LÄS MER
3. Association of hydrophobic organic compounds to organic material in the soil system
Sammanfattning : Contaminated soils and sediments have been identified as significant secondary sources of organic contaminants. Leaching tests may be useful tools to estimate the mobility of contaminants via the water phase and thereby the risk for groundwater and surface water contamination. LÄS MER
4. Water Quality in Swedish Lakes and Watercourses : Modeling the Intra-Annual Variability
Sammanfattning : Water quality is of great importance for ecosystems and society. This thesis characterized and modeled the variation in several key constituents of Swedish surface waters, with particular consideration given to intra-annual variability and sensitivity to climate change. LÄS MER
5. Water quality modeling based on landscape analysis: importance of riparian hydrology
Sammanfattning : Several studies in high-latitude catchments have demonstrated the importance of near-stream riparian zones as hydrogeochemical hotspots with a substantial influence on stream chemistry. An adequate representation of the spatial variability of riparian-zone processes and characteristics is the key for modeling spatio-temporal variations of stream-water quality. LÄS MER