Sökning: "agricultural stream"
Visar resultat 1 - 5 av 53 uppsatser innehållade orden agricultural stream.
1. Nitrogen legacies in agricultural catchments : an analysis of 170 years of nitrogen legacies data in four Swedish agricultural catchments
Master-uppsats, SLU/Dept. of Soil and EnvironmentSammanfattning : Despite the enforcement of legislation and application of measures, nitrogen (N) levels continue to be high in streams. One of the reasons for the low N reduction, is the legacy accumulation of N. LÄS MER
2. The role of bed sediments for fractionation of phosphorus in remediated ditches in Sweden
Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Soil and EnvironmentSammanfattning : Sweden’s environmental quality objectives “A varied agricultural landscape” and “Zero eutrophication”, aims to ensure food production while reducing negative impact from fertilizers on the environment. The input ceilings of nutrient concentrations in the Baltic Sea are still critical. LÄS MER
3. Investigating the dynamics controlling dissolved organic matter bioreactivity in agricultural stream water and its link to carbon evasion : A statistical analysis
Master-uppsats, Stockholms universitet/Institutionen för naturgeografiSammanfattning : While streams and rivers emit large quantities of CO2 to the atmosphere, both the mechanisms controlling CO2 evasion as well as the sources of CO2 are still uncertain. One potential source of stream CO2 is in-stream degradation of dissolved organic matter (DOM). LÄS MER
4. Blue Ti(d)e - Exploring the role of water as Örebro’s meeting space
Master-uppsats, KTH/ArkitekturSammanfattning : In 1888, the lake Hjälmaren underwent a process of lowering by almost 2 metres with the aim of gaining 19.000 ha of arable land. This process had a wide array of ecological implications, and in connection with other historical events, it also resulted in spatial and social cracks dividing the city of Örebro laying on Hjälmaren’s west shore. LÄS MER
5. The role of bed sediments for sorption of phosphorus in remediated ditches in Sweden
Uppsats för yrkesexamina på avancerad nivå, SLU/Dept. of Soil and EnvironmentSammanfattning : Human activities have increased nutrient losses to agricultural ditches and streams, including phosphorus. Phosphorus leakage leads to a worsening of water quality in downstream ecosystems, including lakes and seas. In addition, higher phosphorus concentrations lead to eutrophication, which negatively affects aquatic systems. LÄS MER