Soil organic carbon content decreases in both surface and subsoil mineral horizons by simulated future increases in labile carbon inputs in a temperate coniferous forest

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00551571" target="_blank" >RIV/60077344:_____/21:00551571 - isvavai.cz</a>

Alternative codes found

RIV/61388971:_____/21:00551571 RIV/00216208:11310/21:10437183

Result on the web

<a href="https://link.springer.com/article/10.1007%2Fs10021-021-00632-w" target="_blank" >https://link.springer.com/article/10.1007%2Fs10021-021-00632-w</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s10021-021-00632-w" target="_blank" >10.1007/s10021-021-00632-w</a>

Result language

angličtina

Original language name

Soil organic carbon content decreases in both surface and subsoil mineral horizons by simulated future increases in labile carbon inputs in a temperate coniferous forest

Original language description

Soils represent important pools of soil organic carbon (SOC) that can be greatly influenced by labile C inputs, which are expected to increase in future due to CO2 enrichment of atmosphere and a concomitant rise in plant primary productivity. Studying effects of variable labile C inputs on SOC pool helps to understand how soils respond to global change. However, this knowledge is missing for coniferous forest soils despite being widespread throughout the northern temperate zone. We conducted a 7-month field manipulation experiment to study the effects of variable labile C inputs (simulated by additions of C-4 sucrose) on the C content in soil fractions and on microbial abundance in the organic (O), surface mineral (A), and subsoil mineral (B) horizons of a temperate coniferous forest soil. SOC in less-protected soil fractions and total organic C were substantially decreased by labile C additions that simulated future increases in C inputs. The SOC losses were comparable between the A and B horizon (40% vs. 30%). However, because sucrose availability estimated from its incorporation into soil fractions and microbial biomass sharply decreased with soil depth, the loss of C was higher in the B than in the A horizon when related to the amount of sucrose added. Utilization of sucrose was highest by fungi in the O horizon and by bacteria in the mineral soil horizons. The results indicate that future increases in labile C inputs to coniferous forest soils will cause rapid and substantial losses of SOC in both the surface and subsoil mineral horizons.

Czech name

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Czech description

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Type

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

CEP classification

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OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

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)

Publication year

2021

Confidentiality

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

Name of the periodical

Ecosystems

ISSN

1432-9840

e-ISSN

1435-0629

Volume of the periodical

24

Issue of the periodical within the volume

8

Country of publishing house

US - UNITED STATES

Number of pages

14

Pages from-to

2028-2041

UT code for WoS article

000637632700001

EID of the result in the Scopus database

2-s2.0-85103878634