About: Chemistry of Prášilské Lake and its tributaries during the 1998 summer temperature stratification.

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About: Chemistry of Prášilské Lake and its tributaries during the 1998 summer temperature stratification. Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Water composition in the watershed-lake ecosystem of Pr.beta.Üilsk.theta. Lake has been strongly affected by atmospheric acidification and forest decline. In 1998,all surface tributaries were acidic (pH 3.75-4.87) with sulphate and nitrate the major anions. Tributaries draining sub-watersheds with damaged forest had increased nitrate concentrations (up to 2.4 mg l/1 NO<sub>3</sub>-N) and the elevated losses of base cations. In-lake biochemical processes significantly influenced lake water chemistry during the summer temperature stratification, when pH, acid neutralizing capacity, K<sup>+</sup>, ammonium,DOC,TP,and Fe concentrations were elevated, while nitrate and ionic Al (Al<sub>i</sub>) were lowered. Biological nitrate removal and reduction of ferric oxyhydroxides resulted in alkalinity generation and in pH increase in the hypolimnion. Under higher pH, Al<sub>i</sub> species hydrolyzed and formed particulate Al hydroxides, which adsorbed orthophosphate. This process elevated concentrations of Water composition in the watershed-lake ecosystem of Pr.beta.Üilsk.theta. Lake has been strongly affected by atmospheric acidification and forest decline. In 1998,all surface tributaries were acidic (pH 3.75-4.87) with sulphate and nitrate the major anions. Tributaries draining sub-watersheds with damaged forest had increased nitrate concentrations (up to 2.4 mg l/1 NO<sub>3</sub>-N) and the elevated losses of base cations. In-lake biochemical processes significantly influenced lake water chemistry during the summer temperature stratification, when pH, acid neutralizing capacity, K<sup>+</sup>, ammonium,DOC,TP,and Fe concentrations were elevated, while nitrate and ionic Al (Al<sub>i</sub>) were lowered. Biological nitrate removal and reduction of ferric oxyhydroxides resulted in alkalinity generation and in pH increase in the hypolimnion. Under higher pH, Al<sub>i</sub> species hydrolyzed and formed particulate Al hydroxides, which adsorbed orthophosphate. This process elevated concentrations of (en)
Title	Chemistry of Prášilské Lake and its tributaries during the 1998 summer temperature stratification. Chemistry of Prášilské Lake and its tributaries during the 1998 summer temperature stratification. (en)
skos:prefLabel	Chemistry of Prášilské Lake and its tributaries during the 1998 summer temperature stratification. Chemistry of Prášilské Lake and its tributaries during the 1998 summer temperature stratification. (en)
skos:notation	RIV/60077387:_____/99:62000003!RIV/2003/AV0/A62003/N
http://linked.open.../vavai/riv/strany	33;48
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA206/97/0072), Z(AV0Z6017912)
http://linked.open...iv/cisloPeriodika	N/A
http://linked.open...vai/riv/dodaniDat	2003
http://linked.open...aciTvurceVysledku	Hejzlar, Josef Kopáček, Jiří Porcal, Petr Nedoma, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Hydrobiologický ústav AV ČR
http://linked.open...dnocenehoVysledku	736803
http://linked.open...ai/riv/idVysledku	RIV/60077387:_____/99:62000003
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	N/A (en)
http://linked.open.../riv/klicoveSlovo	N/A
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[A604DC5838A0]
http://linked.open...i/riv/nazevZdroje	Silva Gabreta
http://linked.open...in/vavai/riv/obor	CB
http://linked.open...ichTvurcuVysledku	4 (xsd:int)
http://linked.open...cetTvurcuVysledku	4 (xsd:int)
http://linked.open...ocetUcastnikuAkce	0 (xsd:int)
http://linked.open...nichUcastnikuAkce	0 (xsd:int)
http://linked.open...vavai/riv/projekt	Biodiversity of microbial loop ,carbon flow and nutrient cycling in acidified lakes in the Šumava Mountains : pathways and controlling mechanisms
http://linked.open...UplatneniVysledku	1999
http://linked.open...v/svazekPeriodika	3
http://linked.open...iv/tvurceVysledku	Hejzlar, Josef Kopáček, Jiří Porcal, Petr Nedoma, Jiří
http://linked.open...n/vavai/riv/zamer	Biotické interakce v pelagické zóně lenitických ekosystémů, údolních nádrží a jezer různé trofie v podmínkách výrazného snížení emisí v postkomunistické Evropě
issn	1211-7420
number of pages	16 (xsd:int)

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