Marcescence in temperate regions mediates tree litter decomposition through abiotic factors

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F25%3A00639559" target="_blank" >RIV/60077344:_____/25:00639559 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/67985939:_____/25:00639413 RIV/00216208:11310/25:10500192 RIV/60460709:41330/25:102095

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0038071725001130?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0038071725001130?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.soilbio.2025.109820" target="_blank" >10.1016/j.soilbio.2025.109820</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Marcescence in temperate regions mediates tree litter decomposition through abiotic factors

Popis výsledku v původním jazyce

Most temperate trees shed their senescent leaves in autumn. However, some genera, typically beech and oak, retain a large portion of their dead leaves until the start of the subsequent growing season, a phenomenon termed marcescence. The fundamentally different conditions marcescent and shed senescent leaves are exposed to have the potential to substantially alter litter decomposition. The extent to which marcescence affects decomposition in temperate ecosystems, however, remains unknown, which hampers our understanding of carbon and nutrient cycles. Here, we aimed to resolve this dilemma in a manipulative field experiment by quantifying the effect of solar radiation and precipitation, the major factors marcescent leaves are exposed to in temperate ecosystems, on the decomposition of marcescent leaves relative to that of leaves directly decomposing in the organic layer after their senescence.nExposure of leaves from the genera Quercus and Fagus to solar radiation before decomposition in the organic layer resulted in a considerably higher mass loss for those leaves than for leaves decomposing directly in the organic layer (37 vs. 23 %). This effect was further amplified upon exposure of leaves to both solar radiation and precipitation (cumulative mass loss of ∼50 % or more). Leaf chemistry analyses via Fourier-transform infrared spectroscopy suggested that disruption of ligno-cellulose complexes and leaching of the released compounds in the solar radiation only and solar radiation and precipitation treatments, respectively, accelerated leaf decomposition. We identify marcescence as an integral driver of litter decomposition and highlight the need to consider marcescence in carbon and nutrient cycling in temperate ecosystems.

Název v anglickém jazyce

Marcescence in temperate regions mediates tree litter decomposition through abiotic factors

Popis výsledku anglicky

Most temperate trees shed their senescent leaves in autumn. However, some genera, typically beech and oak, retain a large portion of their dead leaves until the start of the subsequent growing season, a phenomenon termed marcescence. The fundamentally different conditions marcescent and shed senescent leaves are exposed to have the potential to substantially alter litter decomposition. The extent to which marcescence affects decomposition in temperate ecosystems, however, remains unknown, which hampers our understanding of carbon and nutrient cycles. Here, we aimed to resolve this dilemma in a manipulative field experiment by quantifying the effect of solar radiation and precipitation, the major factors marcescent leaves are exposed to in temperate ecosystems, on the decomposition of marcescent leaves relative to that of leaves directly decomposing in the organic layer after their senescence.nExposure of leaves from the genera Quercus and Fagus to solar radiation before decomposition in the organic layer resulted in a considerably higher mass loss for those leaves than for leaves decomposing directly in the organic layer (37 vs. 23 %). This effect was further amplified upon exposure of leaves to both solar radiation and precipitation (cumulative mass loss of ∼50 % or more). Leaf chemistry analyses via Fourier-transform infrared spectroscopy suggested that disruption of ligno-cellulose complexes and leaching of the released compounds in the solar radiation only and solar radiation and precipitation treatments, respectively, accelerated leaf decomposition. We identify marcescence as an integral driver of litter decomposition and highlight the need to consider marcescence in carbon and nutrient cycling in temperate ecosystems.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10611 - Plant sciences, botany

Projekt

<a href="/cs/project/GA21-18623S" target="_blank" >GA21-18623S: Marcescence – běžná ale přehlížená. Proč některé rosliny drží mrtvou biomasu a jaké to má dopady na rozklad opadu a cyklus živin?</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Soil Biology and Biochemistry

ISSN

0038-0717

e-ISSN

1879-3428

Svazek periodika

207

Číslo periodika v rámci svazku

August

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

109820

Kód UT WoS článku

001477363000001

EID výsledku v databázi Scopus

2-s2.0-105002799912