Atmosférická depozice dusíku přispívá ke ztrátě uhlíku z rašelinišť

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F06%3A00015477" target="_blank" >RIV/00216224:14310/06:00015477 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985939:_____/06:00096938

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Atmospheric nitrogen deposition promotes carbon loss from peat bogs.

Popis výsledku v původním jazyce

Peat bogs have historically represented exceptional carbon sinks because of their extremely low decomposition rates and consequent accumulation of plant remnants as peat. Among the factors favoring that peat accumulation, a major role is played by the chemical quality of plant litter itself, which is poor in nutrients and characterized by polyphenols with a strong inhibitory effect on microbial breakdown. Because bogs receive their nutrient supply solely from atmospheric deposition, the global increaseof atmospheric nitrogen (N) inputs as a consequence of human activities could potentially alter the litter chemistry with important, but still unknown, effects on their C balance. Here we present data showing the decomposition rates of recently formed litter peat samples collected in nine European countries under a natural gradient of atmospheric N deposition. We found that enhanced decomposition rates for material accumulated under higher atmospheric N supplies resulted in higher carbon

Název v anglickém jazyce

Atmospheric nitrogen deposition promotes carbon loss from peat bogs.

Popis výsledku anglicky

Peat bogs have historically represented exceptional carbon sinks because of their extremely low decomposition rates and consequent accumulation of plant remnants as peat. Among the factors favoring that peat accumulation, a major role is played by the chemical quality of plant litter itself, which is poor in nutrients and characterized by polyphenols with a strong inhibitory effect on microbial breakdown. Because bogs receive their nutrient supply solely from atmospheric deposition, the global increaseof atmospheric nitrogen (N) inputs as a consequence of human activities could potentially alter the litter chemistry with important, but still unknown, effects on their C balance. Here we present data showing the decomposition rates of recently formed litter peat samples collected in nine European countries under a natural gradient of atmospheric N deposition. We found that enhanced decomposition rates for material accumulated under higher atmospheric N supplies resulted in higher carbon

Druh

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

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

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

Název periodika

Proceedings of the National Academy of Sciences of the USA

ISSN

0027-8424

e-ISSN

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Svazek periodika

103

Číslo periodika v rámci svazku

51

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

4

Strana od-do

19386-19389

Kód UT WoS článku

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EID výsledku v databázi Scopus

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