About: Chemical composition of atmospheric deposition in the catchments of Plešné and Čertovo lakes in 1998

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About: Chemical composition of atmospheric deposition in the catchments of Plešné and Čertovo lakes in 1998–2012 Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The 1998–2012 average composition of bulk precipitation was dominated by NH4-N (25 µmol/l) among cations and NO3–N (21 µmol/l among anions in catchments of Plešné (PL) and Čertovo (CT) lakes in the Bohemian Forest. Concentrations of other ions averaged between 0.8 and 8.3 µmol/l. The average precipitation amount was 1372 mm, bulk deposition fluxes of major nutrients were 5.0, 4.7, and 3.5 kg/ha/yr of NH4 N, NO3 N, and TON, respectively, and 22, 4.5, 2.6, 1.9, 0.5, 0.23 kg/ha/yr of total organic carbon (TOC), SO4-S, Ca, K, Mg, and total phosphorus (TP), respectively. Prior to bark beetle infestation in the PL catchment in 2004–2006, the average throughfall fluxes (TF) of Na, H, SO4-S, NO3-N, and TP, were on average 1.5–2.1 fold higher than their precipitation fluxes (PF). Higher TF:PF ratios (2.1–9.8) were observed for Mn, K, Mg, Ca, and organic C, N, and P forms, while lower ratios (0.6–1.3) occurred for dissolved reactive P and NH4-N. After the forest infestation, throughfall deposition of ions and nutrients started to decrease in the PL compared to the CT catchment. The greatest and most rapid changes occurred for K, DOC, Mg, and Ca. Their fluxes rapidly decreased to values similar to precipitation fluxes within 6–8 years after the infestations. Slower changes occurred in throughfall fluxes of SO4-S, NO3-N, and Cl, and negligible changes so far occurred in the throughfall fluxes of NH4-N. The major reason for differing response of throughfall deposition of individual elements to forest dieback (and reduced surface area of canopies) was different contribution of canopy leaching (export from living and decaying canopy tissue) and microbial transformations to the elemental throughfall fluxes. The 1998–2012 average composition of bulk precipitation was dominated by NH4-N (25 µmol/l) among cations and NO3–N (21 µmol/l among anions in catchments of Plešné (PL) and Čertovo (CT) lakes in the Bohemian Forest. Concentrations of other ions averaged between 0.8 and 8.3 µmol/l. The average precipitation amount was 1372 mm, bulk deposition fluxes of major nutrients were 5.0, 4.7, and 3.5 kg/ha/yr of NH4 N, NO3 N, and TON, respectively, and 22, 4.5, 2.6, 1.9, 0.5, 0.23 kg/ha/yr of total organic carbon (TOC), SO4-S, Ca, K, Mg, and total phosphorus (TP), respectively. Prior to bark beetle infestation in the PL catchment in 2004–2006, the average throughfall fluxes (TF) of Na, H, SO4-S, NO3-N, and TP, were on average 1.5–2.1 fold higher than their precipitation fluxes (PF). Higher TF:PF ratios (2.1–9.8) were observed for Mn, K, Mg, Ca, and organic C, N, and P forms, while lower ratios (0.6–1.3) occurred for dissolved reactive P and NH4-N. After the forest infestation, throughfall deposition of ions and nutrients started to decrease in the PL compared to the CT catchment. The greatest and most rapid changes occurred for K, DOC, Mg, and Ca. Their fluxes rapidly decreased to values similar to precipitation fluxes within 6–8 years after the infestations. Slower changes occurred in throughfall fluxes of SO4-S, NO3-N, and Cl, and negligible changes so far occurred in the throughfall fluxes of NH4-N. The major reason for differing response of throughfall deposition of individual elements to forest dieback (and reduced surface area of canopies) was different contribution of canopy leaching (export from living and decaying canopy tissue) and microbial transformations to the elemental throughfall fluxes. (en)
Title	Chemical composition of atmospheric deposition in the catchments of Plešné and Čertovo lakes in 1998–2012 Chemical composition of atmospheric deposition in the catchments of Plešné and Čertovo lakes in 1998–2012 (en)
skos:prefLabel	Chemical composition of atmospheric deposition in the catchments of Plešné and Čertovo lakes in 1998–2012 Chemical composition of atmospheric deposition in the catchments of Plešné and Čertovo lakes in 1998–2012 (en)
skos:notation	RIV/60077344:_____/13:00394689!RIV14-AV0-60077344
http://linked.open...avai/riv/aktivita	I P S
http://linked.open...avai/riv/aktivity	I, P(GAP504/12/1218), S
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Turek, Jan Kopáček, Jiří Porcal, Petr Kaňa, Jiří Žaloudík, 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	Biologické centrum AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	65210
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/13:00394689
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	throughfall; precipitation; ions; nutrients (en)
http://linked.open.../riv/klicoveSlovo	ions precipitation nutrients throughfall
http://linked.open...odStatuVydavatele	CZ - Česká republika
http://linked.open...ontrolniKodProRIV	[9A0321D741EE]
http://linked.open...i/riv/nazevZdroje	Silva Gabreta
http://linked.open...in/vavai/riv/obor	DJ
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	6 (xsd:int)
http://linked.open...vavai/riv/projekt	Vliv přirozeného rozpadu horských smrkových porostů na mikroklima, chemismus a biodiversitu terestrických a vodních ekosystémů.
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	19
http://linked.open...iv/tvurceVysledku	Kopáček, Jiří Porcal, Petr Turek, Jan Kaňa, Jiří Žaloudík, Jiří Fluksová, H.
issn	1211-7420
number of pages	23 (xsd:int)

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