To log or not to log: Salvaging bark-beetle affected spruce stands results in direct losses of leaf litter C, stable topsoil C stocks, and shifts in enzyme stoichiometry

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F25%3A43926804" target="_blank" >RIV/62156489:43410/25:43926804 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.foreco.2025.122654" target="_blank" >https://doi.org/10.1016/j.foreco.2025.122654</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.foreco.2025.122654" target="_blank" >10.1016/j.foreco.2025.122654</a>

Jazyk výsledku

angličtina

Název v původním jazyce

To log or not to log: Salvaging bark-beetle affected spruce stands results in direct losses of leaf litter C, stable topsoil C stocks, and shifts in enzyme stoichiometry

Popis výsledku v původním jazyce

Disturbances by bark beetles and subsequent salvage logging affect forest carbon (C) stocks. Although deadwood retention is recognised to maintain soil organic C (SOC), the effects of standing deadwood vs. salvage logging on soil properties are poorly understood. This study examines C stocks and soil biochemistry at 21 low-elevation Norway spruce forests 1-3 years after disturbance in the Czech Republic. One third of the stands served as undisturbed control, one third remained dead standing, and one third was salvage logged. The litter C stocks of salvaged plots were immediately reduced to 2.8 +- 0.8 Mg C haMINUS SIGN 1, whereas the litter and topsoil C stocks of dead standing plots decrease from 26.8 and 43.8 Mg C haMINUS SIGN 1 to 4.4 and 24.9 Mg C haMINUS SIGN 1, respectively, over the first three years. Consequently, the topsoil C stocks were TILDE OPERATOR+D9124 % lower at the dead than those of the salvaged plots. NH4-N contents increased two- to three-fold following dieback but decreased to the level of control within the third year. Extracellular enzyme stoichiometry indicated lower organic topsoil C and P microbial limitations at salvaged plots. Our results highlight the rapid dynamics of SOC pools following spruce forest dieback and a marked redistribution of SOC towards topsoil layers when salvaged. Thus, the incorporation of harvest residues and/or changes in soil microbial processes prevented a significant decrease in SOC stocks due to logging. Although deadwood retained higher ecosystem C stocks at the unlogged plots, detailed data on SOC dynamics are required for managing forests to maximise C stocks.

Název v anglickém jazyce

To log or not to log: Salvaging bark-beetle affected spruce stands results in direct losses of leaf litter C, stable topsoil C stocks, and shifts in enzyme stoichiometry

Popis výsledku anglicky

Disturbances by bark beetles and subsequent salvage logging affect forest carbon (C) stocks. Although deadwood retention is recognised to maintain soil organic C (SOC), the effects of standing deadwood vs. salvage logging on soil properties are poorly understood. This study examines C stocks and soil biochemistry at 21 low-elevation Norway spruce forests 1-3 years after disturbance in the Czech Republic. One third of the stands served as undisturbed control, one third remained dead standing, and one third was salvage logged. The litter C stocks of salvaged plots were immediately reduced to 2.8 +- 0.8 Mg C haMINUS SIGN 1, whereas the litter and topsoil C stocks of dead standing plots decrease from 26.8 and 43.8 Mg C haMINUS SIGN 1 to 4.4 and 24.9 Mg C haMINUS SIGN 1, respectively, over the first three years. Consequently, the topsoil C stocks were TILDE OPERATOR+D9124 % lower at the dead than those of the salvaged plots. NH4-N contents increased two- to three-fold following dieback but decreased to the level of control within the third year. Extracellular enzyme stoichiometry indicated lower organic topsoil C and P microbial limitations at salvaged plots. Our results highlight the rapid dynamics of SOC pools following spruce forest dieback and a marked redistribution of SOC towards topsoil layers when salvaged. Thus, the incorporation of harvest residues and/or changes in soil microbial processes prevented a significant decrease in SOC stocks due to logging. Although deadwood retained higher ecosystem C stocks at the unlogged plots, detailed data on SOC dynamics are required for managing forests to maximise C stocks.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

<a href="/cs/project/QK22020217" target="_blank" >QK22020217: Změny v lesních půdách po kalamitní težbě - vliv odlesnění na sekvestraci uhlíku, bilanci živin a mobilitu rizikových prvků</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Forest Ecology and Management

ISSN

0378-1127

e-ISSN

1872-7042

Svazek periodika

585

Číslo periodika v rámci svazku

1 June

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

122654

Kód UT WoS článku

001451580100001

EID výsledku v databázi Scopus

2-s2.0-105000097738