Number of the records: 1

Major changes in forest carbon and nitrogen cycling caused by declining sulphur deposition

SYSNO ASEP	0369362
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Major changes in forest carbon and nitrogen cycling caused by declining sulphur deposition
Author(s)	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)
Number of authors	8
Source Title	Global Change Biology. - : Wiley - ISSN 1354-1013 Roč. 17, č. 10 (2011), 3115–3129
Number of pages	15 s.
Publication form	WWW - WWW
Language	eng - English
Country	GB - United Kingdom
Keywords	acidification ; carbon ; deposition ; DOC ; forest floor ; leaching ; nitrogen ; nitrogen saturation ; soil ; sulphur
Subject RIV	DD - Geochemistry
R&D Projects	OC10022 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
CEZ	AV0Z60870520 - UEK-B (2005-2011)
UT WOS	000294571700009
DOI	10.1111/j.1365-2486.2011.02468.x
Annotation	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.
Workplace	Global Change Research Institute
Contact	Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268
Year of Publishing	2012

Number of the records: 1