Relationship between nitrogen isotope ratios of NO3- and N2O in vertical porewater profiles through a polluted rain-fed peat bog

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00025798%3A_____%2F18%3A00000065" target="_blank" >RIV/00025798:_____/18:00000065 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11320/18:10380790

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0038071718301421" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0038071718301421</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.soilbio.2018.04.022" target="_blank" >10.1016/j.soilbio.2018.04.022</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Relationship between nitrogen isotope ratios of NO3- and N2O in vertical porewater profiles through a polluted rain-fed peat bog

Popis výsledku v původním jazyce

We report a combination of delta15N-NO3- and delta15N-N2O values along vertical porewater profiles through a Sphagnum-dominated, high-elevation peat bog. Our objective was to distinguish between N2O production from NO3- via denitrification and N2O consumption via reduction to N2. Nitrate-N in runoff was isotopically heavier than NO3--N in atmospheric deposition, indicating export of organically-cycled N. Constant N2O concentrations in porewater profiles contrasted with a shift toward higher delta15N-N2O values upward. In the 60-30 cm depth interval, a significant negative correlation between delta15N-NO3- and delta15N-N2O values was observed. Higher delta15N values of residual NO3- in the deepest peat layer reflected higher rates of NO3- reduction. Isotopically heavier N2O-N at shallower depths corresponded to residual N2O following partial reduction to N2.

Název v anglickém jazyce

Relationship between nitrogen isotope ratios of NO3- and N2O in vertical porewater profiles through a polluted rain-fed peat bog

Popis výsledku anglicky

We report a combination of delta15N-NO3- and delta15N-N2O values along vertical porewater profiles through a Sphagnum-dominated, high-elevation peat bog. Our objective was to distinguish between N2O production from NO3- via denitrification and N2O consumption via reduction to N2. Nitrate-N in runoff was isotopically heavier than NO3--N in atmospheric deposition, indicating export of organically-cycled N. Constant N2O concentrations in porewater profiles contrasted with a shift toward higher delta15N-N2O values upward. In the 60-30 cm depth interval, a significant negative correlation between delta15N-NO3- and delta15N-N2O values was observed. Higher delta15N values of residual NO3- in the deepest peat layer reflected higher rates of NO3- reduction. Isotopically heavier N2O-N at shallower depths corresponded to residual N2O following partial reduction to N2.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10618 - Ecology

Projekt

<a href="/cs/project/GA16-18079S" target="_blank" >GA16-18079S: Izotopové doklady mikrobiální fixace dusíku v ombrotrofních mokřadech</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Soil Biology & Biochemistry

ISSN

0038-0717

e-ISSN

—

Svazek periodika

123

Číslo periodika v rámci svazku

August

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

3

Strana od-do

7-9

Kód UT WoS článku

000437392000004

EID výsledku v databázi Scopus

2-s2.0-85046487676