Changes in forest nitrogen cycling across deposition gradient revealed by δ15N in tree rings

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F22%3A00000150" target="_blank" >RIV/00025798:_____/22:00000150 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43410/22:43921264

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 δ15N 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 delta15N alongside soil acidity and nutrient availability gradients caused by thecontrasting 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 delta15N, which were temporarily unrelated to the changes in the TRW. The rate of delta15N 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 15N depleted N in tree rings, likely mediated by retained N from deposition, was restricted primarily to stands with currently higher Pavailability. The shifts observed in tree-ring delta15N 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 δ15N 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 delta15N alongside soil acidity and nutrient availability gradients caused by thecontrasting 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 delta15N, which were temporarily unrelated to the changes in the TRW. The rate of delta15N 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 15N depleted N in tree rings, likely mediated by retained N from deposition, was restricted primarily to stands with currently higher Pavailability. The shifts observed in tree-ring delta15N 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

10511 - Environmental sciences (social aspects to be 5.7)

Projekt

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

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

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

—

Svazek periodika

304

Číslo periodika v rámci svazku

July : 119104

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

11

Strana od-do

nestránkováno

Kód UT WoS článku

000792635100002

EID výsledku v databázi Scopus

2-s2.0-85127009726