Sökning: "two-stage ditch"
Visar resultat 1 - 5 av 8 uppsatser innehållade orden two-stage ditch.
1. 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
2. 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
3. The role of agricultural drainage in controlling the effectiveness of two-stage ditches in Sweden
Master-uppsats, SLU/Dept. of Soil and EnvironmentSammanfattning : Increased agricultural activities are causing eutrophication in downstream water bodies. To mitigate nutrient leaching from cropland, various in-field and edge-of-field practices have been implemented. LÄS MER
4. A two-stage ditch – a source or sinks of nutrients and sediment : evaluation of sediment loss and inundation frequency
Master-uppsats, SLU/Dept. of Soil and EnvironmentSammanfattning : Human-made channel systems in the agricultural landscape have received critical attention due to the dire consequences on water quality and increasing eutrophication polluting receiving aquatic systems. Trapezoidal-formed (traditional) ditches have been scrutinized and a new mitigation measure for channelized drainage systems has gained a great deal of attention i. LÄS MER
5. Optimizing the design of two-stage ditches to improve nutrient and sediment retention
Master-uppsats, Uppsala universitet/Institutionen för geovetenskaperSammanfattning : Negative effects on water quality are created by eutrophication of the world’s water resources. Mitigation measures have been implemented, but poor improvements in water quality have been observed. Two-stage ditches have the possibility to increase nutrient and sediment retention to reduce eutrophication in receiving water bodies. LÄS MER