Počet záznamů: 1
Major changes in forest carbon and nitrogen cycling caused by declining sulphur deposition
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SYSNO ASEP 0369362 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Major changes in forest carbon and nitrogen cycling caused by declining sulphur deposition Tvůrce(i) Oulehle, F. (CZ)
Evans, C. D. (GB)
Hofmeister, J. (CZ)
Krejci, R. (CZ)
Tahovská, K. (CZ)
Persson, T. (SE)
Cudlín, Pavel (UEK-B) RID, SAI, ORCID
Hruška, J. (CZ)Celkový počet autorů 8 Zdroj.dok. Global Change Biology. - : Wiley - ISSN 1354-1013
Roč. 17, č. 10 (2011), 3115–3129Poč.str. 15 s. Forma vydání WWW - WWW Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova acidification ; carbon ; deposition ; DOC ; forest floor ; leaching ; nitrogen ; nitrogen saturation ; soil ; sulphur Vědní obor RIV DD - Geochemie CEP OC10022 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy CEZ AV0Z60870520 - UEK-B (2005-2011) UT WOS 000294571700009 DOI 10.1111/j.1365-2486.2011.02468.x Anotace Sulphur (S) and nitrogen (N) deposition are important drivers of the terrestrial carbon (C) and N cycling. We analyzed changes in C and N pools in soil and tree biomass at a highly acidified spruce site in the Czech Republic during a 15 year period. Total S deposition decreased from 5 to 1.1 g m−2 yr−1 between 1995 and 2009, whereas bulk N deposition did not change. Forest floor net N mineralization also decreased. This had consequences for spruce needle N concentration. Higher forest growth and lower canopy defoliation was observed in the 2000s compared to the 1990s. Our results demonstrate that reducing S deposition has had a profound impact on forest organic matter cycling, leading to a reversal of historic ecosystem N enrichment, cessation of nitrate leaching, and a major loss of accumulated organic soil C and N stocks. These results have major implications for our understanding of the controls on both N saturation and C sequestration in forests, and other ecosystems, subjected to current or historic S deposition. Pracoviště Ústav výzkumu globální změny Kontakt Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Rok sběru 2012
Počet záznamů: 1