Sökning: "weisner"

Visar resultat 1 - 5 av 7 avhandlingar innehållade ordet weisner.

1. 1. Biodiversity and ecosystem functioning in created agricultural wetlands

   Författare :Geraldine Thiere; Stefan Weisner; Högskolan i Halmstad; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; constructed ponds; eutrophication abatement; biodiversity conservation; functional diversity; macroinvertebrates; plants; bacterial denitrification; watershed scale; nitrogen removal; phosphorus retention; Terrestrial; freshwater and marine ecology; Terrestrisk; limnisk och marin ekologi; watershed scale; bacterial denitrification; plants; macroinvertebrates; functional diversity; biodiversity conservation; constructed ponds; eutrophication abatement; nitrogen removal; phosphorus retention;

   Sammanfattning : This doctoral dissertation was produced in a cooperation between Halmstad University (Wetland Research Centre, School of Business and Engineering) and Lund University (Limnology & Marine Biology, Department of Ecology).Abstract . LÄS MER

3. 2. Wastewater treatment in constructed wetlands : Effects of vegetation, hydraulics and data analysis methods

   Författare :Hristina Bodin; Karin Tonderski; Jesper Persson; Stefan Weisner; Per Milberg; Hans Brix; Linköpings universitet; []
   Nyckelord :constructed wetland; free water surface flow; wastewater treatment; Kenya; Sweden; vegetation; harvest; Cyperus papyrus; Echinochloa pyramidalis; mass load; phosphorus; ammonium; suspended solids; pollutant removal; hydraulics; residence time distribution; data analysis methods; Konstgjorda våtmarker; avloppsvatten; vattenrening; fosfor; ammonium; partiklar; Kenya; Sverige; växter; Cyperus papyrus; Echinochloa pyramidalis; skörd; hydraulik; dataanalysmetod;

   Sammanfattning : Degradation of water resources has become one of the most pressing global concerns currently facing mankind. Constructed Wetlands (CWs) represent a concept to combat deterioration of water resources by acting as buffers between wastewater and receiving water bodies. LÄS MER

4. 3. Analysis of phosphorus retention variations in constructed wetlands receiving variable loads from arable land

   Författare :Karin Johannesson; Karin Tonderski; Charlotte Kjaergaard; Stefan Weisner; Linköpings universitet; []
   Nyckelord :NATURAL SCIENCES; NATURVETENSKAP;

   Sammanfattning : Seven wetlands, constructed on agricultural land in the south of Sweden, were investigated with respect to phosphorus (P) retention. The overall aim was to increase the understanding of P retention and find possible explanations for the variations in retention that have been observed in previous studies. LÄS MER

5. 4. Particulate phosphorus accumulation and net retention in constructed wetlands receiving agricultural runoff : Critical analysis of factors affecting retention estimates

   Författare :Karin Johannesson; Karin Tonderski; Stefan Weisner; Uno Wennergren; Ben Surridge; Linköpings universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Phosphorus retention; constructed wetlands; agriculture; sampling strategy;

   Sammanfattning : Övergödning är ett allvarligt miljöproblem, som bland annat orsakar omfattande blomningar av alger och blågrönbakterier. I söt- och brackvatten är fosfor ofta det mest begränsande näringsämnet för dessa organismer, varför en minskning av fosfortillförseln är nödvändig för att nå förbättringar. LÄS MER

7. 5. Phytoremediation Efficiency : Assessment of Removal Processes and Hydraulic Performance in Constructed Wetlands

   Författare :Anna Mietto; Patrizia Torricelli; Luca De Nat; Mario Malagoli; Cristina Nasci; Stefan Weisner; Dipartimento di Scienze Ambientali Università Ca’ Foscari di Venezia; []
   Nyckelord :;

   Sammanfattning : .... LÄS MER