Hysteresis in reversal of Central European mountain lakes from atmospheric acidification.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077387%3A_____%2F02%3A62023105" target="_blank" >RIV/60077387:_____/02:62023105 - 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

Hysteresis in reversal of Central European mountain lakes from atmospheric acidification.

Popis výsledku v původním jazyce

Emissions of S and N compounds in Central Europe declined by ~70% and ~35%, respectively, during the last decade. The parallel reduction in deposition of S and N to mountain ecosystems has resulted in a reversal of acidification in the Tatra Mountains (TM) and Bohemian Forest (BF) lakes. Between the late 1980s and 1990s, the respective concentrations of sulphate and nitrate decreased by 22 7 and 12 7 mol/l in TM and by 19 7 and 15 10 mol/l in BF. This decrease was compensated in part (1) by a decrease in Ca and Mg (17 7 mol/l) and protons (4 6 mol/l) , and an increase in bicarbonate (10 10 mol/l) in the TM lakes, and (2) by a decrease in Al (7 4 mol/l), Ca and Mg (9 6 mol/l), and protons (6 5 mol/l) in the BF lakes. Despite their rapid decline, the current concentrations of sulphate and nitrate in the lakes are higher than the observed values at comparable emission rates in the past. This hysteresis in chemical reversal delays biological recovery of the lakes.

Název v anglickém jazyce

Hysteresis in reversal of Central European mountain lakes from atmospheric acidification.

Popis výsledku anglicky

Emissions of S and N compounds in Central Europe declined by ~70% and ~35%, respectively, during the last decade. The parallel reduction in deposition of S and N to mountain ecosystems has resulted in a reversal of acidification in the Tatra Mountains (TM) and Bohemian Forest (BF) lakes. Between the late 1980s and 1990s, the respective concentrations of sulphate and nitrate decreased by 22 7 and 12 7 mol/l in TM and by 19 7 and 15 10 mol/l in BF. This decrease was compensated in part (1) by a decrease in Ca and Mg (17 7 mol/l) and protons (4 6 mol/l) , and an increase in bicarbonate (10 10 mol/l) in the TM lakes, and (2) by a decrease in Al (7 4 mol/l), Ca and Mg (9 6 mol/l), and protons (6 5 mol/l) in the BF lakes. Despite their rapid decline, the current concentrations of sulphate and nitrate in the lakes are higher than the observed values at comparable emission rates in the past. This hysteresis in chemical reversal delays biological recovery of the lakes.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DA - Hydrologie a limnologie

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2002

Kód důvěrnosti údajů

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

Název periodika

Water, Air, and Soil Pollution: Focus

ISSN

1567-7230

e-ISSN

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Svazek periodika

2

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

24

Strana od-do

91-114

Kód UT WoS článku

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EID výsledku v databázi Scopus

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