Comparison of the impacts of acid and nitrogen additions on carbon fluxes in European conifer and broadleaf forests

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F18%3A43897451" target="_blank" >RIV/60076658:12310/18:43897451 - isvavai.cz</a>

Alternative codes found

RIV/86652079:_____/18:00490776 RIV/00025798:_____/18:00000177 RIV/00216208:11310/18:10378770

Result on the web

<a href="https://reader.elsevier.com/reader/sd/pii/S0269749118302793?token=5CD8258E3CEA79D4821D7B9F9F3EC9B9B1630ACFB5A185060FB7CD35E238BE505B174013CB4640A353FD38E00589B915" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S0269749118302793?token=5CD8258E3CEA79D4821D7B9F9F3EC9B9B1630ACFB5A185060FB7CD35E238BE505B174013CB4640A353FD38E00589B915</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envpol.2018.03.081" target="_blank" >10.1016/j.envpol.2018.03.081</a>

Result language

angličtina

Original language name

Comparison of the impacts of acid and nitrogen additions on carbon fluxes in European conifer and broadleaf forests

Original language description

Increased reactive nitrogen (N) loadings to terrestrial ecosystems are believed to have positive effects on ecosystem carbon (C) sequestration. Global &quot;hot spots&quot; of N deposition are often associated with currently or formerly high deposition of sulphur (S); C fluxes in these regions might therefore not be responding solely to N loading, and could be undergoing transient change as S inputs change. In a four-year, two-forest stand (mature Norway spruce and European beech) replicated field experiment involving acidity manipulation (sulphuric acid addition), N addition (NH4NO3) and combined treatments, we tested the extent to which altered soil solution acidity or/and soil N availability affected the concentration of soil dissolved organic carbon (DOC), soil respiration (Rs), microbial community characteristics (respiration, biomass, fungi and bacteria abundances) and enzyme activity. We demonstrated a large and consistent suppression of soil water DOC concentration driven by chemical changes associated with increased hydrogen ion concentrations under acid treatments, independent of forest type. Soil respiration was suppressed by sulphuric acid addition in the spruce forest, accompanied by reduced microbial biomass, increased fungal:bacterial ratios and increased C to N enzyme ratios. We did not observe equivalent effects of sulphuric acid treatments on Rs in the beech forest, where microbial activity appeared to be more tightly linked to N acquisition. The only changes in C cycling following N addition were increased C to N enzyme ratios, with no impact on C fluxes (either Rs or DOC). We conclude that C accumulation previously attributed solely to N deposition could be partly attributable to their simultaneous acidification.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10618 - Ecology

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

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

Name of the periodical

Environmental Pollution

ISSN

0269-7491

e-ISSN

—

Volume of the periodical

238

Issue of the periodical within the volume

JUL 2018

Country of publishing house

GB - UNITED KINGDOM

Number of pages

10

Pages from-to

884-893

UT code for WoS article

000434754600094

EID of the result in the Scopus database

2-s2.0-85044957820