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Titel: Climate-dependent plant responses to earthworms in two land-use types
Autor(en): Liu, Qun
Eisenhauer, NicoIn der Gemeinsamen Normdatei der DNB nachschlagen
Scheu, StefanIn der Gemeinsamen Normdatei der DNB nachschlagen
Angst, Gerrit
Bücker, Miriam
Huang, YuanyuanIn der Gemeinsamen Normdatei der DNB nachschlagen
Meador, TravisIn der Gemeinsamen Normdatei der DNB nachschlagen
Schädler, MartinIn der Gemeinsamen Normdatei der DNB nachschlagen
Erscheinungsdatum: 2024
Art: Artikel
Sprache: Englisch
Zusammenfassung: Plant nutrient uptake and productivity are driven by a multitude of factors that have been modified by human activities, like climate change and the activity of decomposers. However, interactive effects of climate change and key decomposer groups like earthworms have rarely been studied. In a field microcosm experiment, we investigated the effects of a mean future climate scenario with warming (+ 0.50 °C to + 0.62 °C) and altered precipitation (+ 10% in spring and autumn, − 20% in summer) and earthworms (anecic—two Lumbricus terrestris, endogeic—four Allolobophora chlorotica and both together within 10 cm diameter tubes) on plant biomass and stoichiometry in two land-use types (intensively used meadow and conventional farming). We found little evidence for earthworm effects on aboveground biomass. However, future climate increased above- (+40.9%) and belowground biomass (+44.7%) of grass communities, which was mainly driven by production of the dominant Festulolium species during non-summer drought periods, but decreased the aboveground biomass (− 36.9%) of winter wheat. Projected climate change and earthworms interactively affected the N content and C:N ratio of grasses. Earthworms enhanced the N content (+1.2%) thereby decreasing the C:N ratio (− 4.1%) in grasses, but only under ambient climate conditions. The future climate treatment generally decreased the N content of grasses (aboveground: − 1.1%, belowground: − 0.15%) and winter wheat (− 0.14%), resulting in an increase in C:N ratio of grasses (aboveground: + 4.2%, belowground: +6.3%) and wheat (+5.9%). Our results suggest that climate change diminishes the positive effects of earthworms on plant nutrient uptakes due to soil water deficit, especially during summer drought.
URI: https://opendata.uni-halle.de//handle/1981185920/117244
http://dx.doi.org/10.25673/115289
Open-Access: Open-Access-Publikation
Nutzungslizenz: (CC BY 4.0) Creative Commons Namensnennung 4.0 International(CC BY 4.0) Creative Commons Namensnennung 4.0 International
Journal Titel: Oecologia
Verlag: Springer
Verlagsort: Berlin
Band: 204
Originalveröffentlichung: 10.1007/s00442-023-05493-9
Seitenanfang: 133
Seitenende: 146
Enthalten in den Sammlungen:Open Access Publikationen der MLU

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