Sökning: "nutrient mitigation measure"

Hittade 5 uppsatser innehållade orden nutrient mitigation measure.

1. 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 Environment

   Författare :Emma Ryding; [2022]
   Nyckelord :Phosphorus fractionation; agricultural stream; sediment; two-stage ditch; eutrophication;

   Sammanfattning : 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. 2. Initial nutrient retention capacity in a constructed wetland : Evaluating the effectiveness of a newly constructed wetland to reduce eutrophication symptoms in a Baltic Sea bay in northern Sweden

   Master-uppsats, Umeå universitet/Institutionen för ekologi, miljö och geovetenskap

   Författare :Elin Eriksson; [2021]
   Nyckelord :retention; constructed wetland; total phosphorus; total nitrogen; nutrient dynamics; northern latitudes; nutrient mitigation measure;

   Sammanfattning : Since the turn of the last century, a substantial increase in nutrient load to the Baltic Sea is apparent. Adding the ongoing environmental change with raising temperatures and increased precipitation, this will continue to have a prominent environmental impact on our coastal ecosystems, especially in northern latitudes. LÄS MER

4. 3. 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 Environment

   Författare :Sheryl Ilao Åström; [2021]
   Nyckelord :Two-stage ditch; geomorphology; inundation frequency; channel evolution; water quality; agricultural ditch;

   Sammanfattning : 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. 4. Optimizing the design of two-stage ditches to improve nutrient and sediment retention

   Master-uppsats, Uppsala universitet/Institutionen för geovetenskaper

   Författare :Sofia Englund; [2020]
   Nyckelord :eutrophication; water quality; mitigation measure; two-stage ditch; retention time; water retention; nutrients; sediments; vegetation; terrace; HEC-RAS; Manning’s coefficient; water level; climate change; övergödning; vattenkvalitet; begränsande åtgärd; tvåstegsdike; retentionstid; vattenretention; näringsämnen; sediment; vegetation; terrass; HEC-RAS; Manning’s koefficient; vattennivå; klimatförändring;

   Sammanfattning : 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

7. 5. Using Blue Mussels as a Tool for Mitigating Eutrophication in the Baltic Sea

   Master-uppsats, Linköpings universitet/Industriell miljöteknik

   Författare :Johanna Ståhle; Linnea Henriksson; [2018]
   Nyckelord :Life cycle analysis LCA ; recycling of nutrients; blue mussels; mussel farm; mussel meal; biogas; compost;

   Sammanfattning : Eutrophication is a consequence of excess nutrients in the water which leads to increased algaegrowth, reduced water transparency and hypoxic bottoms. This is the biggest environmental problemfor the Baltic Sea which recently has resulted in stricter legislations and other initiatives to help theBaltic Sea to recover. LÄS MER