About: Profile distribution of humic substances molecular fractions in mountain spruce forest soil

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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	The objective of this study was to describe changes in molecular weight of humic (HA) and fulvic acids (FA) with depth of soil profile, and to state their mobility in a soil environment. Samples were isolated from individual podzol horizons of spruce forest in Trojmezí stand (Bohemian Forest, 48°46'25%22 N, 13°51'04%22 E). Their molecular weight Mr and weight-average molecular weight Mw were determined by the low pressure size exclusion chromatography. For the high-molecular HA fraction (HM-HA), Mr values over 250 kDa were found, while values of FA and the main HA fraction ranged between 6.4-7.6 kDa and 6.7-31.4 kDa, respectively. The Mr of humic substances and the proportion of HM-HA decreased with increasing soil depth. HA isolated from horizon Bhs didn't contain any high-molecular fraction and its molecular weight approached the values specified for FA. The objective of this study was to describe changes in molecular weight of humic (HA) and fulvic acids (FA) with depth of soil profile, and to state their mobility in a soil environment. Samples were isolated from individual podzol horizons of spruce forest in Trojmezí stand (Bohemian Forest, 48°46'25%22 N, 13°51'04%22 E). Their molecular weight Mr and weight-average molecular weight Mw were determined by the low pressure size exclusion chromatography. For the high-molecular HA fraction (HM-HA), Mr values over 250 kDa were found, while values of FA and the main HA fraction ranged between 6.4-7.6 kDa and 6.7-31.4 kDa, respectively. The Mr of humic substances and the proportion of HM-HA decreased with increasing soil depth. HA isolated from horizon Bhs didn't contain any high-molecular fraction and its molecular weight approached the values specified for FA. (en)
Title	Profile distribution of humic substances molecular fractions in mountain spruce forest soil Profile distribution of humic substances molecular fractions in mountain spruce forest soil (en)
skos:prefLabel	Profile distribution of humic substances molecular fractions in mountain spruce forest soil Profile distribution of humic substances molecular fractions in mountain spruce forest soil (en)
skos:notation	RIV/60077344:_____/11:00368843!RIV12-AV0-60077344
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z60660521)
http://linked.open...iv/cisloPeriodika	1
http://linked.open...vai/riv/dodaniDat	2012
http://linked.open...aciTvurceVysledku	Šestauberová, Martina Novák, František
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	224356
http://linked.open...ai/riv/idVysledku	RIV/60077344:_____/11:00368843
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	forest soil; fulvic acids; humic acids (en)
http://linked.open.../riv/klicoveSlovo	forest soil fulvic acids humic acids
http://linked.open...odStatuVydavatele	SK - Slovenská republika
http://linked.open...ontrolniKodProRIV	[F66D3480CBE2]
http://linked.open...i/riv/nazevZdroje	Phytopedon
http://linked.open...in/vavai/riv/obor	EH
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	10
http://linked.open...iv/tvurceVysledku	Novák, František Šestauberová, Martina
http://linked.open...n/vavai/riv/zamer	Relationships between the structure and function of decomposer food web in soil
issn	1336-1120
number of pages	6 (xsd:int)

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