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Changes in forest nitrogen cycling across deposition gradient revealed by delta N-15 in tree rings
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SYSNO ASEP 0557546 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Changes in forest nitrogen cycling across deposition gradient revealed by delta N-15 in tree rings Author(s) Oulehle, Filip (UEK-B) RID, ORCID, SAI
Tahovská, K. (CZ)
Ač, Alexander (UEK-B) RID, ORCID, SAI
Kolář, Tomáš (UEK-B) RID, ORCID, SAI
Rybníček, Michal (UEK-B) RID, ORCID, SAI
Čermák, P. (CZ)
Štěpánek, Petr (UEK-B) RID, SAI, ORCID
Trnka, Miroslav (UEK-B) RID, ORCID, SAI
Urban, Otmar (UEK-B) RID, ORCID, SAI
Hruška, Jakub (UEK-B) RID, SAI, ORCIDNumber of authors 10 Article number 119104 Source Title Environmental Pollution. - : Elsevier - ISSN 0269-7491
Roč. 304, JUL (2022)Number of pages 11 s. Language eng - English Country GB - United Kingdom Keywords long-term trends ; natural-abundance ; radial growth ; isotopes ; availability ; recovery ; plant ; acidification ; watersheds ; limitation ; nitrogen ; Phosphorus ; Isotope ; Eutrophication ; Forest productivity ; Tree species Subject RIV EH - Ecology, Behaviour OECD category Ecology R&D Projects GA18-17295S GA ČR - Czech Science Foundation (CSF) EF16_019/0000797 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support UEK-B - RVO:86652079 UT WOS 000792635100002 EID SCOPUS 85127009726 DOI 10.1016/j.envpol.2022.119104 Annotation Tree rings provide valuable insight into past environmental changes. This study aimed to evaluate perturbations in tree ring width (TRW) and delta N-15 alongside soil acidity and nutrient availability gradients caused by the contrasting legacy of air pollution (nitrogen [N] and sulphur [S] deposition) and tree species (European beech, Silver fir and Norway spruce). We found consistent declines of tree ring delta N-15, which were temporarily unrelated to the changes in the TRW. The rate of delta N-15 change in tree rings was related to the contemporary foliar carbon (C) to phosphorus (P) ratio. This observation suggested that the long-term accumulation of N-15 depleted N in tree rings, likely mediated by retained N from deposition, was restricted primarily to stands with currently higher P availability. The shifts observed in tree-ring delta N-15 and TRW suggest that acidic air pollution rather than changes in stand productivity determined alteration of N and C cycles. Stable N isotopes in tree rings provided helpful information on the trajectory of the N cycle over the last century with direct consequences for a better understanding of future interactions among N, P and C cycles in terrestrial ecosystems. Workplace Global Change Research Institute Contact Nikola Šviková, svikova.n@czechglobe.cz, Tel.: 511 192 268 Year of Publishing 2023 Electronic address https://www.sciencedirect.com/science/article/pii/S0269749122003189?via%3Dihub
Number of the records: 1