Affiliation:
1. Montpellier European Ecotron, CNRS
2. CNRS
3. CEFE
4. AgroSup Dijon
5. Institut Agro / UMR SAS
6. INRA
7. Centre National de la Recherche Scientifique
Abstract
Abstract
Earthworms are known to stimulate soil greenhouse gas (GHG) emissions, but previous studies have used simplified models or had limited measurements. To address this, we conducted a two-year study using large lysimeters in an ecotron facility, continuously measuring ecosystem-level CO2, N2O, and H2O fluxes. We investigated the impact of endogeic and anecic earthworms on GHG emissions and ecosystem water use efficiency (WUE) in an agricultural setting. Although we observed transient stimulations of carbon fluxes in the presence of earthworms, cumulative fluxes over the study indicated no significant increase in CO2 emissions. Endogeic earthworms marginally reduced N2O emissions during the wheat culture (-44.6%), but this effect was not sustained throughout the experiment. No consistent effects on ecosystem evapotranspiration or WUE were found. Our study suggests that earthworms do not significantly contribute to GHG emissions over a two-year period in experimental conditions that mimic an agricultural setting. These findings highlight the need for realistic experiments enabling continuous GHG measurements.
Publisher
Research Square Platform LLC
Reference56 articles.
1. Edwards, C.A., Arancon, N.Q.: Biology and Ecology of Earthworms. Springer, New York (2022)
2. Scheu, S.: Effects of earthworms on plant growth: patterns and perspectives: The 7th international symposium on earthworm ecology · Cardiff · Wales · 2002. Pedobiologia 47, 846–856 (2003)
3. Earthworms increase plant production: a meta-analysis;Groenigen JW;Sci. Rep.,2014
4. Invasive earthworms erode soil biodiversity: A meta-analysis;Ferlian O;J. Anim. Ecol.,2018
5. Invasive Earthworms Deplete Key Soil Inorganic Nutrients (Ca, Mg, K, and P) in a Northern Hardwood Forest;Resner K;Ecosystems,2015
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