Excess of organic carbon in mountain spruce forest soils after bark beetle outbreak altered microbial N transformations and mitigated N-saturation

Kód výsledku v IS VaVaI

RIV/60077344:_____/15:00443147 - isvavai.cz

Nalezeny alternativní kódy

RIV/60076658:12310/15:43888733

Výsledek na webu

http://dx.doi.org/10.1371/journal.pone.0134165

DOI - Digital Object Identifier

10.1371/journal.pone.0134165

Jazyk výsledku

angličtina

Název v původním jazyce

Excess of organic carbon in mountain spruce forest soils after bark beetle outbreak altered microbial N transformations and mitigated N-saturation

Popis výsledku v původním jazyce

The article evaluates changes in the biochemistry of the uppermost soil horizons with the emphasis on carbon (C) and nitrogen (N) cycling in a near-natural spruce (Picea abies) mountain forest after the forest dieback, and compares it with an undisturbedcontrol plot of similar age, climate, elevation, deposition, N-saturation level, and land use history. High litter input after forest dieback at the disturbed plot and its consequent decomposition influenced the availability of C for microorganisms, andconsequently, N transformations in the soil. The concentrations of dissolved organic C (DOC) and N (DON) in soil water extracts rapidly increased at the disturbed plot for 3 years and then continually decreased. Net ammonification exhibited a similar trend as DOC and DON, indicating elevated mineralization. Despite the high ammonium concentrations found after the forest dieback, net nitrification was stable and low during these 3 years. After the DOC depletion and decrease in microbial

Název v anglickém jazyce

Excess of organic carbon in mountain spruce forest soils after bark beetle outbreak altered microbial N transformations and mitigated N-saturation

Popis výsledku anglicky

The article evaluates changes in the biochemistry of the uppermost soil horizons with the emphasis on carbon (C) and nitrogen (N) cycling in a near-natural spruce (Picea abies) mountain forest after the forest dieback, and compares it with an undisturbedcontrol plot of similar age, climate, elevation, deposition, N-saturation level, and land use history. High litter input after forest dieback at the disturbed plot and its consequent decomposition influenced the availability of C for microorganisms, andconsequently, N transformations in the soil. The concentrations of dissolved organic C (DOC) and N (DON) in soil water extracts rapidly increased at the disturbed plot for 3 years and then continually decreased. Net ammonification exhibited a similar trend as DOC and DON, indicating elevated mineralization. Despite the high ammonium concentrations found after the forest dieback, net nitrification was stable and low during these 3 years. After the DOC depletion and decrease in microbial

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EH - Ekologie – společenstva

OECD FORD obor

—

Projekt

GAP504/12/1218: Vliv přirozeného rozpadu horských smrkových porostů na mikroklima, chemismus a biodiversitu terestrických a vodních ekosystémů.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

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

Název periodika

PLoS ONE

ISSN

1932-6203

e-ISSN

—

Svazek periodika

10

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

19

Strana od-do

—

Kód UT WoS článku

000358838400083

EID výsledku v databázi Scopus

2-s2.0-84941992270