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T1  - Nitrogen stocks and flows in an acid sulfate soil 
SN  -  /  
UR  - http://hdl.handle.net/10138/321242 
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A1  - Yli-Halla, Markku; Virtanen, Seija; Regina, Kristiina; Österholm, Peter; Ehnvall, Betty; Uusi-Kämppä, Jaana 
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Y1  - 2020 
LA  - eng 
AB  - Besides causing acidification, acid sulfate (AS) soils contain large nitrogen (N) stocks and are a potential source of N loading to waters and nitrous oxide (N2O) emissions. We quantified the stocks and flows of N, including crop yields, N leaching, and N2O emissions, in a cultivated AS soil in western Finland. We also investigated whether controlled drainage (CD) and sub-irrigation (CDI) to keep the sulfidic horizons inundated can alleviate N losses. Total N stock at 0-100 cm (19.5 Mg ha(-1)) w... 
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KW  - 1172 Environmental sciences; 11831 Plant biology; Acid sulfate soil; Controlled drainage; Sub-irrigation; N leaching; Nitrous oxide emissions; IRON SULFIDE OXIDATION; CONTROLLED DRAINAGE; NITRATE REDUCTION; GROWING-SEASON; N2O EMISSIONS; LOSSES; OXIDE; DENITRIFICATION; MINERALIZATION; GEOCHEMISTRY 
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