Responses of microbial activity to carbon, nitrogen, and phosphorus additions in forest mineral soils differing in organic carbon content

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00543099" target="_blank" >RIV/60077344:_____/21:00543099 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/21:10437200

Výsledek na webu

<a href="https://link.springer.com/article/10.1007/s00374-021-01545-5" target="_blank" >https://link.springer.com/article/10.1007/s00374-021-01545-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00374-021-01545-5" target="_blank" >10.1007/s00374-021-01545-5</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Responses of microbial activity to carbon, nitrogen, and phosphorus additions in forest mineral soils differing in organic carbon content

Popis výsledku v původním jazyce

Labile C input to the soil can cause the priming effect (PE) that in turn changes the soil organic C (SOC) content. However, little information is available to predict the magnitude of the PE in different soils, especially under concurrent changes in nutrient inputs. We took advantage of a natural gradient in labile C input in the surroundings of wood ant nests in a temperate coniferous forest which arises through the long-term effects of wood ant foraging on the inputs of honeydew to soil. We collected soils from the surface mineral horizon (high-SOC content) (A horizon) and the subsoil mineral horizon (low-SOC content) (B horizon) at 4 m (low labile C input and higher SOC content) and 70 m (high labile C input and lower SOC content) from four nests. In a 6-month laboratory microcosm experiment, we monitored microbial activity and PE as affected by no nutrient addition (control) or fortnightly additions of labile C alone or in combination with N and/or P (C, CN, CP, CNP). Microbial activity and PE after C addition increased more at 70 m than at 4 m in the B horizon, that is, were higher with a lower SOC content. However, microbial activity and PE in the B horizon were not affected by additions of N and/or P with C. In the A horizon, microbial activity and PE were lower after combined CN addition but increased by combined CP addition relative to C addition alone. In conclusion, labile C inputs had a larger effect on decomposition and PE in low-SOC than high-SOC soils, whereas N and P inputs had greater effects in high-SOC soils than in low-SOC soils. This suggests that low-SOC soils such as those subjected to a high long-term labile C input or those from the subsoil mineral horizon might be more susceptible to increase microbial activity in relation to changes in labile C inputs but less susceptible in relation to changes in N and P inputs relative to high-SOC soils.

Název v anglickém jazyce

Responses of microbial activity to carbon, nitrogen, and phosphorus additions in forest mineral soils differing in organic carbon content

Popis výsledku anglicky

Labile C input to the soil can cause the priming effect (PE) that in turn changes the soil organic C (SOC) content. However, little information is available to predict the magnitude of the PE in different soils, especially under concurrent changes in nutrient inputs. We took advantage of a natural gradient in labile C input in the surroundings of wood ant nests in a temperate coniferous forest which arises through the long-term effects of wood ant foraging on the inputs of honeydew to soil. We collected soils from the surface mineral horizon (high-SOC content) (A horizon) and the subsoil mineral horizon (low-SOC content) (B horizon) at 4 m (low labile C input and higher SOC content) and 70 m (high labile C input and lower SOC content) from four nests. In a 6-month laboratory microcosm experiment, we monitored microbial activity and PE as affected by no nutrient addition (control) or fortnightly additions of labile C alone or in combination with N and/or P (C, CN, CP, CNP). Microbial activity and PE after C addition increased more at 70 m than at 4 m in the B horizon, that is, were higher with a lower SOC content. However, microbial activity and PE in the B horizon were not affected by additions of N and/or P with C. In the A horizon, microbial activity and PE were lower after combined CN addition but increased by combined CP addition relative to C addition alone. In conclusion, labile C inputs had a larger effect on decomposition and PE in low-SOC than high-SOC soils, whereas N and P inputs had greater effects in high-SOC soils than in low-SOC soils. This suggests that low-SOC soils such as those subjected to a high long-term labile C input or those from the subsoil mineral horizon might be more susceptible to increase microbial activity in relation to changes in labile C inputs but less susceptible in relation to changes in N and P inputs relative to high-SOC soils.

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

2021

Kód důvěrnosti údajů

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

Název periodika

Biology and Fertility of Soils

ISSN

0178-2762

e-ISSN

1432-0789

Svazek periodika

57

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

513-521

Kód UT WoS článku

000617820100001

EID výsledku v databázi Scopus

2-s2.0-85100963961