Resistance–recovery trade‐off of soil microbial communities under altered rain regimes: An experimental test across European agroecosystems

Autor: Arnaud Foulquier, Lijbert Brussaard, Jean-Christophe Clément, Filipa Reis, Cindy Arnoldi, José Paulo Sousa, Pedro Martins da Silva, Gerlinde B. De Deyn, Katarina Hedlund, Laura B. Martínez-García, Gabin Piton, Nicolas Legay, Eduardo Nascimento
Přispěvatelé: Laboratoire d'Ecologie Alpine (LECA ), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA), Wageningen University and Research [Wageningen] (WUR), Cités, Territoires, Environnement et Sociétés (CITERES), Centre National de la Recherche Scientifique (CNRS)-Université de Tours (UT), Lund University [Lund], Universidade de Coimbra [Coimbra], Centre Alpin de Recherche sur les Réseaux Trophiques et Ecosystèmes Limniques (CARRTEL), Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Portuguese Foundation for Science and TechnologyEuropean CommissionBiodivERsA/001/2014National Council for Scientific and Technological Development (CNPq) Spanish Government Austrian Science Fund (FWF) Swedish Research Council Formas Netherlands Organization for Scientific Research (NWO)European CommissionSwiss Federal Office of Agriculture, ANR-16-CE02-0009,GlobNets,Biogéographie globale des réseaux écologiques des forêts du monde(2016), Centre National de la Recherche Scientifique (CNRS)-Université de Tours
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Journal of Applied Ecology
Journal of Applied Ecology, Wiley, 2021, 58 (2), pp.406-418. ⟨10.1111/1365-2664.13774⟩
Journal of Applied Ecology 58 (2021) 2
Journal of Applied Ecology, 58(2), 406-418
ISSN: 0021-8901
1365-2664
DOI: 10.1111/1365-2664.13774⟩
Popis: International audience; With the increased occurrence of climate extremes, there is an urgent need to better understand how management strategies affect the capacity of the soil microbial community to maintain its ecosystem functions (e.g. nutrient cycling).To address this issue, intact monoliths were extracted from conventional and ecological managed grasslands in three countries across Europe and exposed under common air condition (temperature and moisture) to one of three altered rain regimes (dry, wet and intermittent wet/dry) as compared to a normal regime. Subsequently, we compared the resistance and recovery of the soil microbial biomass, potential enzyme activities and community composition.The microbial community composition differed with soil management and rain regimes. Soil microbial biomass increased from the wetter to the dryer rain regime, paralleling an increase of available carbon and nutrients, suggesting low sensitivity to soil moisture reduction but nutritional limitations of soil microbes. Conversely, enzyme activities decreased with all altered rain regimes.Resistance and recovery (considering absolute distance between normal and altered rain regime) of the microbial communities depended on soil management. Conventional-intensive management showed higher resistance of two fundamental properties for nutrient cycling (i.e. bacterial biomass and extracellular enzyme activities) yet associated with more important changes in microbial community composition. This suggests an internal community reorganization promoting biomass and activity resistance. Conversely, under ecological management bacterial biomass and enzyme activities showed better recovery capacity, whereas no or very low recovery of these properties was observed under conventional management. These management effects were consistent across the three altered rain regimes investigated, indicating common factors controlling microbial communities' response to different climate-related stresses.Synthesis and applications. Our study provides experimental evidence for an important trade-off for agroecosystem management between (a) stabilizing nutrient cycling potential during an altered rain regime period at the expense of very low recovery capacity and potential long-term effect (conventional sites) and (b) promoting the capacity of the microbial community to recover its functional potential after the end of the stress (ecological sites). Thus, management based on ecologically sound principles may be the best option to sustain long-term soil functioning under climate change.
Databáze: OpenAIRE
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