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Carbon, Nitrogen and Phosphorus Tranformations are Related to Age of a Constructe Wetland
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SYSNO ASEP 0359494 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Carbon, Nitrogen and Phosphorus Tranformations are Related to Age of a Constructe Wetland Author(s) Zemanová, K. (CZ)
Picek, T. (CZ)
Dušek, Jiří (UEK-B) RID, SAI
Edwards, K. (CZ)
Šantrůčková, H. (CZ)Number of authors 5 Source Title Water, Air, and Soil Pollution. - : Springer - ISSN 0049-6979
Roč. 207, 1-4 (2010), s. 39-48Number of pages 10 s. Language eng - English Country NL - Netherlands Keywords constucted wetlands ; carbon ; nitrogen ; phosphorus ; mineralization ; microbial processes ; greenhouse gasses Subject RIV EH - Ecology, Behaviour CEZ AV0Z60870520 - UEK-B (2005-2011) UT WOS 000274550700005 DOI 10.1007/s11270-009-0117-6 Annotation Two horizontal constructed wetlands with subsurface flow (CWs) of different age were monitored in a 2-year study. One of the CWs was new, while the second one had been in operation for 5 years in the first year of study. Transformations of C, P, and N were measured in each CW in the substrate of the vegetated bed under both aerobic and anaerobic conditions, and their rates were compared. C was mineralized in both CWs under both aerobic and anaerobic conditions, but mineralization rates differed between the CWs; they were cca ten times higher in the established CW compared to the new CW. Dissolved reactive phosphorus (DRP) was immobilized under aerobic conditions but was mobilized under anaerobic conditions. DRP transformation was cca five times faster in the established CW. Nitrification occurred under aerobic conditions at similar rates in both CWs. NH4 (+) concentration decreased under both aerobic and anaerobic conditions, but there was large variability. The age of the CW affected C mineralization rates and DRP immobilization rates under aerobic conditions and mobilization rates under anaerobic conditions; they increased as the CWs maturated, while no effect of CW age was observed on nitrogen removal rates. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2012
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