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Compared to conventional, ecological intensive management promotes beneficial proteolytic soil microbial communities for agro-ecosystem functioning under climate change-induced rain regimes

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Lori, Martina; Piton, Gabin; Symanczik, Sarah; Legay, Nicolas; Brussaard, Lijbert; Jaenicke, Sebastian; Nascimento, Eduardo; Reis, Filipa; Sousa, José Paulo; Mäder, Paul; Gattinger, Andreas; Clément, Jean-Christophe and Foulquier, Arnaud (2020) Compared to conventional, ecological intensive management promotes beneficial proteolytic soil microbial communities for agro-ecosystem functioning under climate change-induced rain regimes. Scientific Reports, 10 (7296), pp. 1-15.

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Online at: https://www.nature.com/articles/s41598-020-64279-8

Summary

Projected climate change and rainfall variability will affect soil microbial communities, biogeochemical cycling and agriculture. Nitrogen (N) is the most limiting nutrient in agroecosystems and its cycling and availability is highly dependent on microbial driven processes. In agroecosystems, hydrolysis of organic nitrogen (N) is an important step in controlling soil N availability. We analyzed the effect of management (ecological intensive vs. conventional intensive) on N-cycling processes and involved microbial communities under climate change-induced rain regimes. Terrestrial model ecosystems originating from agroecosystems across Europe were subjected to four different rain regimes for 263 days. Using structural equation modelling we identified direct impacts of rain regimes on N-cycling processes, whereas N-related microbial communities were more resistant. In addition to rain regimes, management indirectly affected N-cycling processes via modifications of N-related microbial community composition. Ecological intensive management promoted a beneficial N-related microbial community composition involved in N-cycling processes under climate change-induced rain regimes. Exploratory analyses identified phosphorus-associated litter properties as possible drivers for the observed management effects on N-related microbial community composition. This work provides novel insights into mechanisms controlling agro-ecosystem functioning under climate change.


EPrint Type:Journal paper
Keywords:systems comparision, cimate, soil fonctions, soil quality, agroecology, climate-change ecology, Ecology, ecosystem ecology, grassland ecology, micobial ecology, molecular ecology
Subjects: Soil > Soil quality > Soil biology
Environmental aspects > Air and water emissions
Research affiliation: Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Soil Sciences
Germany > University of Gießen
France > Other organizations
Portugal
Netherlands > Wageningen University & Research (WUR)
Deposited By: Symanczik, Dr. Sarah
ID Code:38024
Deposited On:18 May 2020 08:30
Last Modified:18 May 2020 08:30
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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