Essays about: "kväveretention"

Found 4 essays containing the word kväveretention.

  1. 1. Utvärdering av öppna dikens status och funktion : en förstudie i Västmanlands län

    University essay from SLU/Dept. of Soil and Environment

    Author : Pontus Bornold; [2013]
    Keywords : markavvattning; markavvattningsföretag; dikesutvärdering; vattendragsmorfologi; dikesunderhåll; klimatanpassning;

    Abstract : Evaluations of open Ditch status and function, with an assessment of suitability of a conversion to a two stage ditch as a low maintenance alternative. To illustrate Swedish drainage problems this work focused on two agricultural drainage associations assessed in detail with a new method called MADRAS (Minnesota Agricultural Ditch Reach Assessment for Stability). READ MORE

  3. 2. Tillsats av biokol till en svensk sandjord : effekter på lustgasavgång, kväveretention och andel vattenfyllda porer

    University essay from SLU/Dept. of Soil and Environment

    Author : Rickard Almers; [2009]
    Keywords : lustgas; N2O; denitrifikation; biokol; träkol; svartkol; kväveretention; nitratretention; ammoniumretention; klimatförändringar; CO2; koldioxid; carbon capture and storage; CCS; kolsänka;

    Abstract : In a column experiment the effect of three different biochars on nitrous gas emissions, nitrogenretention and water filled pore space (WFPS) were studied in a Swedish sandy soil, classified as aCryopsamment. Ammonium retention was positively correlated, while KCl-extractable ammoniumwas negatively correlated, with the specific area of the biochars. READ MORE

  4. 3. Våtmarker för näringsretention i Lillån : var bör de ligga och vilken effekt kan vi förvänta

    University essay from SLU/Dept. of Soil Sciences

    Author : Malin Pettersson; [2006]
    Keywords : anlagda våtmarker; placering; kväveretention; fosforretention;

    Abstract : Construction of wetlands in the agricultural landscape may reduce nitrogen and phosphorus transfer to streams, thereby reducing the eutrophication of lakes and seas. The agriculturalstream Lillån, a tributary to stream Sagån, ends up in Lake Mälaren and is transporting large amounts of these plant nutrients. READ MORE

  5. 4. Modellsimulering av optimala lägen för våtmarker med avseende på kväveretention : en fallstudie i Lidans avrinningsområde

    University essay from SLU/Dept. of Environmental Assessment

    Author : Kristina Sigfridsson; [2006]
    Keywords : modellsimulering; våtmarker; kväveretention;

    Abstract : .... READ MORE