Multiple environmental factors interact to affect wet grassland ecosystem functions

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12310%2F25%3A43909798" target="_blank" >RIV/60076658:12310/25:43909798 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0925857424003367?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0925857424003367?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ecoleng.2024.107511" target="_blank" >10.1016/j.ecoleng.2024.107511</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Multiple environmental factors interact to affect wet grassland ecosystem functions

Popis výsledku v původním jazyce

Wet grasslands are highly productive wetland ecosystems that provide many important ecosystem services, including nutrient removal for water purification, carbon (C) sequestration, local climate regulation, water retention, and flood attenuation. Like other ecosystems, wet grasslands are affected by multiple biotic and abiotic factors, the interactions of which may affect their functionality. We conducted a fully factorial mesocosm experiment to disentangle the importance of soil type (mineral or organic), water (high vs low) and nutrient level (NPK fertilized or unfertilized) effects on plant and soil parameters and how these affect ecosystem respiration (RECO) and greenhouse gas (GHG) emissions. In the fifth year of the experiment, we measured plant biomass and production, soil biological and chemical parameters, and GHG fluxes four times during the year, once before the start of the growing season and then in the beginning, peak and end of the growing season. We found that plant, soil and GHG parameters showed distinct seasonality and were influenced by all tested factors, both singly and interactively, affecting many aspects of wet grassland ecosystems by acting through several plant-soil feedbacks. Soil type, both primarily and in several interactions with water and nutrient levels, controlled soil properties, microbial biomass, and bacterial and fungal abundances. Plant presence, the productivity of which was stimulated by nutrient addition, together with some plant-soil feedbacks, were the main drivers of RECO and GHG emissions (relevant only for CH4 because N2O was not emitted in any sampling occasion). As a result, CO2 and CH4 emissions were 12 and 3 times greater, respectively, in vegetated compared to un-vegetated samples. In addition, water level and nutrient addition interactions influenced gas emissions, with CO2 emissions being greater in low water, fertilized conditions, while CH4 emissions increased under high water, unfertilized conditions. When correcting for the greater global warming potential (GWP) of CH4, it still accounted for only a maximum of 18 % of the GHG fluxes. We showed that multiple environmental factors interact to impact wet grassland functions. Managers should focus their activities on managing the factors that most allow for wet grasslands to maintain their structure and functions to future disturbances.

Název v anglickém jazyce

Multiple environmental factors interact to affect wet grassland ecosystem functions

Popis výsledku anglicky

Wet grasslands are highly productive wetland ecosystems that provide many important ecosystem services, including nutrient removal for water purification, carbon (C) sequestration, local climate regulation, water retention, and flood attenuation. Like other ecosystems, wet grasslands are affected by multiple biotic and abiotic factors, the interactions of which may affect their functionality. We conducted a fully factorial mesocosm experiment to disentangle the importance of soil type (mineral or organic), water (high vs low) and nutrient level (NPK fertilized or unfertilized) effects on plant and soil parameters and how these affect ecosystem respiration (RECO) and greenhouse gas (GHG) emissions. In the fifth year of the experiment, we measured plant biomass and production, soil biological and chemical parameters, and GHG fluxes four times during the year, once before the start of the growing season and then in the beginning, peak and end of the growing season. We found that plant, soil and GHG parameters showed distinct seasonality and were influenced by all tested factors, both singly and interactively, affecting many aspects of wet grassland ecosystems by acting through several plant-soil feedbacks. Soil type, both primarily and in several interactions with water and nutrient levels, controlled soil properties, microbial biomass, and bacterial and fungal abundances. Plant presence, the productivity of which was stimulated by nutrient addition, together with some plant-soil feedbacks, were the main drivers of RECO and GHG emissions (relevant only for CH4 because N2O was not emitted in any sampling occasion). As a result, CO2 and CH4 emissions were 12 and 3 times greater, respectively, in vegetated compared to un-vegetated samples. In addition, water level and nutrient addition interactions influenced gas emissions, with CO2 emissions being greater in low water, fertilized conditions, while CH4 emissions increased under high water, unfertilized conditions. When correcting for the greater global warming potential (GWP) of CH4, it still accounted for only a maximum of 18 % of the GHG fluxes. We showed that multiple environmental factors interact to impact wet grassland functions. Managers should focus their activities on managing the factors that most allow for wet grasslands to maintain their structure and functions to future disturbances.

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

<a href="/cs/project/GA19-13254S" target="_blank" >GA19-13254S: Vliv funkčního typu a fenologie rostlin na rhizodepozice za měnících se podmínek půdního prostředí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Ecological Engineering

ISSN

0925-8574

e-ISSN

1872-6992

Svazek periodika

212

Číslo periodika v rámci svazku

FEB 2025

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

12

Strana od-do

nestránkováno

Kód UT WoS článku

001410137500001

EID výsledku v databázi Scopus

2-s2.0-85214306937