Linking Soil CO2 Efflux to Individual Trees: Size-Dependent Variation and the Importance of the Birch Effect

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41320%2F21%3A89510" target="_blank" >RIV/60460709:41320/21:89510 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.mdpi.com/2571-8789/5/1/7" target="_blank" >https://www.mdpi.com/2571-8789/5/1/7</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/soilsystems5010007" target="_blank" >10.3390/soilsystems5010007</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Linking Soil CO2 Efflux to Individual Trees: Size-Dependent Variation and the Importance of the Birch Effect

Popis výsledku v původním jazyce

Soil CO2 efflux (F-CO2) is a major component of the terrestrial carbon (C) cycle but challenges in explaining local variability hamper efforts to link broad-scale fluxes to their biotic drivers. Trees are the dominant C source for forest soils, so linking tree properties to F-CO2 could open new avenues to study plant-soil feedbacks and facilitate scaling, furthermore, F-CO2 responds dynamically to meteorological conditions, complicating predictions of total F-CO2 and forest C balance. We tested for proximity effects of individual Acer saccharum Marsh. trees on F-CO2, comparing F-CO2 within 1 m of mature stems to background fluxes before and after an intense rainfall event. Wetting significantly increased background F-CO2 (6,4 +- 0,3 vs. 8,6 +- 0,6 s.e. mu mol CO2 m(-2) s(-1)), with a much larger enhancement near tree stems (6,3 +- 0,3 vs. 10,8 +- 0,4 mu mol CO2 m(-2) S-1). F-CO2 varied significantly among individual trees and post-rain values increased with tree diameter (with a slope of 0,058 mu mol

Název v anglickém jazyce

Linking Soil CO2 Efflux to Individual Trees: Size-Dependent Variation and the Importance of the Birch Effect

Popis výsledku anglicky

Soil CO2 efflux (F-CO2) is a major component of the terrestrial carbon (C) cycle but challenges in explaining local variability hamper efforts to link broad-scale fluxes to their biotic drivers. Trees are the dominant C source for forest soils, so linking tree properties to F-CO2 could open new avenues to study plant-soil feedbacks and facilitate scaling, furthermore, F-CO2 responds dynamically to meteorological conditions, complicating predictions of total F-CO2 and forest C balance. We tested for proximity effects of individual Acer saccharum Marsh. trees on F-CO2, comparing F-CO2 within 1 m of mature stems to background fluxes before and after an intense rainfall event. Wetting significantly increased background F-CO2 (6,4 +- 0,3 vs. 8,6 +- 0,6 s.e. mu mol CO2 m(-2) s(-1)), with a much larger enhancement near tree stems (6,3 +- 0,3 vs. 10,8 +- 0,4 mu mol CO2 m(-2) S-1). F-CO2 varied significantly among individual trees and post-rain values increased with tree diameter (with a slope of 0,058 mu mol

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

40102 - Forestry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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

Název periodika

Soil Systems

ISSN

2571-8789

e-ISSN

—

Svazek periodika

5

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

000633088700001

EID výsledku v databázi Scopus

2-s2.0-85100650481