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Land use alters the resistance and resilience of soil food webs to drought

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de Vries, Franciska T.; Liiri, M.E.; Bjørnlund, Lisa; Bowker, M.A.; Christensen, Soren; Setälä, Heikki and Bardgett, Richard (2012) Land use alters the resistance and resilience of soil food webs to drought. Nature Climate Change, 2, pp. 276-280.

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Summary

Soils deliver several ecosystem services including carbon sequestration and nutrient cycling, which are of central importance to climate mitigation and sustainable food production. Soil biota play an important role in carbon and nitrogen cycling, and, although the effects of land use on soil food webs are well documented, the consequences for their resistance and resilience to climate change are not known. We compared the resistance and resilience to drought — which is predicted to increase under climate change 2,7 — of soil food webs of two common land-use systems: intensively managed wheat with a bacterial-based soil food web and extensively managed grassland with a fungal-based soil food web. We found that the fungal-based food web, and the processes of C and N loss it governs, of grassland soil was more resistant, although not resilient, and better able to adapt to drought than the bacterial-based food web of wheat soil. Structural equation modelling revealed that fungal-based soil food webs and greater microbial evenness mitigated C and N loss. Our findings show that land use strongly affects the resistance and resilience of soil food webs to climate change, and that extensively managed grassland promotes more resistant, and adaptable, fungal-based soil food webs.


EPrint Type:Journal paper
Subjects: Soil > Soil quality > Soil biology
Research affiliation: European Union
Denmark > KU - University of Copenhagen > KU-LIFE - Faculty of Life Sciences
H2020 or FP7 Grant Agreement Number:211779
DOI:10.1038/NCLIMATE1368
Deposited By: Christensen, professor Soren
ID Code:20882
Deposited On:27 Dec 2012 11:24
Last Modified:03 Jan 2013 08:18
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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