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Statements

Subject Item
n2:RIV%2F67179843%3A_____%2F10%3A00359494%21RIV12-AV0-67179843
rdf:type
skos:Concept n7:Vysledek
dcterms:description
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. 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.
dcterms:title
Carbon, Nitrogen and Phosphorus Tranformations are Related to Age of a Constructe Wetland Carbon, Nitrogen and Phosphorus Tranformations are Related to Age of a Constructe Wetland
skos:prefLabel
Carbon, Nitrogen and Phosphorus Tranformations are Related to Age of a Constructe Wetland Carbon, Nitrogen and Phosphorus Tranformations are Related to Age of a Constructe Wetland
skos:notation
RIV/67179843:_____/10:00359494!RIV12-AV0-67179843
n3:aktivita
n8:I n8:P n8:Z
n3:aktivity
I, P(GA526/09/1545), P(GP206/03/P021), Z(AV0Z60870520), Z(MSM6007665801)
n3:cisloPeriodika
1-4
n3:dodaniDat
n12:2012
n3:domaciTvurceVysledku
n18:5280990
n3:druhVysledku
n11:J
n3:duvernostUdaju
n13:S
n3:entitaPredkladatele
n17:predkladatel
n3:idSjednocenehoVysledku
249609
n3:idVysledku
RIV/67179843:_____/10:00359494
n3:jazykVysledku
n19:eng
n3:klicovaSlova
constucted wetlands; carbon; nitrogen; phosphorus; mineralization; microbial processes; greenhouse gasses
n3:klicoveSlovo
n4:phosphorus n4:carbon n4:constucted%20wetlands n4:greenhouse%20gasses n4:nitrogen n4:mineralization n4:microbial%20processes
n3:kodStatuVydavatele
NL - Nizozemsko
n3:kontrolniKodProRIV
[766E6EDC8C8C]
n3:nazevZdroje
Water, Air and Soil Pollution
n3:obor
n6:EH
n3:pocetDomacichTvurcuVysledku
1
n3:pocetTvurcuVysledku
5
n3:projekt
n9:GP206%2F03%2FP021 n9:GA526%2F09%2F1545
n3:rokUplatneniVysledku
n12:2010
n3:svazekPeriodika
207
n3:tvurceVysledku
Picek, T. Dušek, Jiří Zemanová, K. Šantrůčková, H. Edwards, K.
n3:wos
000274550700005
n3:zamer
n14:AV0Z60870520 n14:MSM6007665801
s:issn
0049-6979
s:numberOfPages
10
n15:doi
10.1007/s11270-009-0117-6