Soil networks become more connected and take up more carbon as nature restoration progresses. - Archive ouverte HAL
Article Dans Une Revue Nature Communications Année : 2017

Soil networks become more connected and take up more carbon as nature restoration progresses.

Marie-Lara Bouffaud
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Marc Buée
Dirk Redecker
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Stéphane Uroz
Francis Martin

Résumé

Soil organisms have an important role in aboveground community dynamics and ecosystem functioning in terrestrial ecosystems. However, most studies have considered soil biota as a black box or focussed on specific groups, whereas little is known about entire soil networks. Here we show that during the course of nature restoration on abandoned arable land a compositional shift in soil biota, preceded by tightening of the belowground networks, corresponds with enhanced efficiency of carbon uptake. In mid- and long-term abandoned field soil, carbon uptake by fungi increases without an increase in fungal biomass or shift in bacterial-to-fungal ratio. The implication of our findings is that during nature restoration the efficiency of nutrient cycling and carbon uptake can increase by a shift in fungal composition and/or fungal activity. Therefore, we propose that relationships between soil food web structure and carbon cycling in soils need to be reconsidered.

Dates et versions

hal-01581635 , version 1 (04-09-2017)

Identifiants

Citer

Elly Morriën, S Emilia Hannula, L Basten Snoek, Nico R Helmsing, Hans Zweers, et al.. Soil networks become more connected and take up more carbon as nature restoration progresses.. Nature Communications, 2017, 8, pp.1-10. ⟨10.1038/ncomms14349⟩. ⟨hal-01581635⟩
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