Litter decomposition in European coniferous and broadleaf forests under experimentally elevated acidity and nitrogen addition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F21%3A00000088" target="_blank" >RIV/00025798:_____/21:00000088 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60076658:12310/21:43903367 RIV/86652079:_____/21:00544846 RIV/00216208:11310/21:10428347

Výsledek na webu

<a href="https://link.springer.com/article/10.1007%2Fs11104-021-04926-9#Abs1" target="_blank" >https://link.springer.com/article/10.1007%2Fs11104-021-04926-9#Abs1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s11104-021-04926-9" target="_blank" >10.1007/s11104-021-04926-9</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Litter decomposition in European coniferous and broadleaf forests under experimentally elevated acidity and nitrogen addition

Popis výsledku v původním jazyce

BackgroundAtmospheric sulfur (S) and nitrogen (N) deposition has impacted many regions across the Northern Hemisphere inducing acidification and eutrophication of terrestrial ecosystems. However, acidification and eutrophication processes may differently impact litter decomposition and thus soil carbon (C) dynamics.MethodsWe performed a field soil chemistry manipulation in two mountainous temperate forest stands (Picea abies and Fagus sylvatica) historically affected by acid (S and N) deposition. In each stand, four treatments were established: control, acid addition (H2SO4 – kg S·ha− 1·year− 1), N addition (NH4NO3 – kg N·ha− 1·year− 1) and their combination. In fourth year of manipulation, we established litter decomposition experiment. Litter bags of contrasting quality and origin (green tea, rooibos tea, spruce needles and beech leaves), in total 1536 samples, were buried below the organic layer and left to decompose up to 24 months. Retrieved samples were analysed for mass loss, C/N, and concentration of CuO oxidation lignin. Data were complemented by monitoring soil water pH and soil CO2 efflux.ResultsAcid additions decreased soil water pH, soil respiration and suppressed decomposition of the high-quality litter (green tea) in both stands, whereas mass loss of remaining litter was reduced only in the spruce stand. Nitrogen treatments, when coupled with decreasing soil water pH, constrained needle decomposition in the naturally more acidic spruce stand.ConclusionsOur study demonstrates a suppressing effect of soil acidity on decomposition processes and soil C dynamics. The effect of N addition, as a nutrient, was insignificant, likely because of previous ecosystem adaptation to historical N loadings.

Název v anglickém jazyce

Litter decomposition in European coniferous and broadleaf forests under experimentally elevated acidity and nitrogen addition

Popis výsledku anglicky

BackgroundAtmospheric sulfur (S) and nitrogen (N) deposition has impacted many regions across the Northern Hemisphere inducing acidification and eutrophication of terrestrial ecosystems. However, acidification and eutrophication processes may differently impact litter decomposition and thus soil carbon (C) dynamics.MethodsWe performed a field soil chemistry manipulation in two mountainous temperate forest stands (Picea abies and Fagus sylvatica) historically affected by acid (S and N) deposition. In each stand, four treatments were established: control, acid addition (H2SO4 – kg S·ha− 1·year− 1), N addition (NH4NO3 – kg N·ha− 1·year− 1) and their combination. In fourth year of manipulation, we established litter decomposition experiment. Litter bags of contrasting quality and origin (green tea, rooibos tea, spruce needles and beech leaves), in total 1536 samples, were buried below the organic layer and left to decompose up to 24 months. Retrieved samples were analysed for mass loss, C/N, and concentration of CuO oxidation lignin. Data were complemented by monitoring soil water pH and soil CO2 efflux.ResultsAcid additions decreased soil water pH, soil respiration and suppressed decomposition of the high-quality litter (green tea) in both stands, whereas mass loss of remaining litter was reduced only in the spruce stand. Nitrogen treatments, when coupled with decreasing soil water pH, constrained needle decomposition in the naturally more acidic spruce stand.ConclusionsOur study demonstrates a suppressing effect of soil acidity on decomposition processes and soil C dynamics. The effect of N addition, as a nutrient, was insignificant, likely because of previous ecosystem adaptation to historical N loadings.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40104 - Soil science

Projekt

<a href="/cs/project/GA20-19471S" target="_blank" >GA20-19471S: GeoMicLink: Vliv mikrobiální komunity na retenci živin v povodích</a><br>

Návaznosti

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

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Plant and Soil

ISSN

0032-079X

e-ISSN

1573-5036

Svazek periodika

463

Číslo periodika v rámci svazku

1-2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

15

Strana od-do

471-485

Kód UT WoS článku

000633739800001

EID výsledku v databázi Scopus

2-s2.0-85103394550