Biogeochemistry of forest catchments with contrasting geology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F00%3A00000188" target="_blank" >RIV/00025798:_____/00:00000188 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Biogeochemistry of forest catchments with contrasting geology

Popis výsledku v původním jazyce

The objective was to compare and contrast element pools and fluxes in two catchments with similar topography, vegetation, climate, and atmospheric deposition, but different lithology (leucogranite vs. serpentinite). The leucogranite site Lysina showed low concentrations of exchangeable base cations on the soil exchange complex and in stream water. Supplies of base cations from atmospheric deposition and soil processes were smaller than inputs of sulfate on an equivalence basis, resulting in low pH and high concentration of toxic Al in drainage water. Visible symptoms of forest decline by needle yellowing were caused by Mg deficiency at Lysina. In contrast, the serpentinite site exhibited near neutral stream water pH, despite elevated inputs of acidic deposition. Slow tree growth appears to be caused by K deficiency, Mg oversupply and Ni toxicity.

Název v anglickém jazyce

Biogeochemistry of forest catchments with contrasting geology

Popis výsledku anglicky

The objective was to compare and contrast element pools and fluxes in two catchments with similar topography, vegetation, climate, and atmospheric deposition, but different lithology (leucogranite vs. serpentinite). The leucogranite site Lysina showed low concentrations of exchangeable base cations on the soil exchange complex and in stream water. Supplies of base cations from atmospheric deposition and soil processes were smaller than inputs of sulfate on an equivalence basis, resulting in low pH and high concentration of toxic Al in drainage water. Visible symptoms of forest decline by needle yellowing were caused by Mg deficiency at Lysina. In contrast, the serpentinite site exhibited near neutral stream water pH, despite elevated inputs of acidic deposition. Slow tree growth appears to be caused by K deficiency, Mg oversupply and Ni toxicity.

Druh

D - Stať ve sborníku

CEP obor

DD - Geochemie

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2000

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Eliáš, V. and Littlewood, I.G. (eds.) Catchment hydrological and biochemical processes in the changing environment. International Hydrological Programme-V, Technical Documents in Hydrology, No. 37.

ISBN

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ISSN

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e-ISSN

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Počet stran výsledku

7

Strana od-do

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Název nakladatele

UNESCO

Místo vydání

Paris

Místo konání akce

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Datum konání akce

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Typ akce podle státní příslušnosti

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Kód UT WoS článku

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