Changes in forest nitrogen cycling across deposition gradient revealed by delta N-15 in tree rings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F22%3A00557546" target="_blank" >RIV/86652079:_____/22:00557546 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/22:43905009

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0269749122003189?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0269749122003189?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envpol.2022.119104" target="_blank" >10.1016/j.envpol.2022.119104</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Changes in forest nitrogen cycling across deposition gradient revealed by delta N-15 in tree rings

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

Changes in forest nitrogen cycling across deposition gradient revealed by delta N-15 in tree rings

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

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

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Environmental Pollution

ISSN

0269-7491

e-ISSN

1873-6424

Svazek periodika

304

Číslo periodika v rámci svazku

JUL

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

119104

Kód UT WoS článku

000792635100002

EID výsledku v databázi Scopus

2-s2.0-85127009726