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

Nature communications (2017-02-09)
Elly Morriën, S Emilia Hannula, L Basten Snoek, Nico R Helmsing, Hans Zweers, Mattias de Hollander, Raquel Luján Soto, Marie-Lara Bouffaud, Marc Buée, Wim Dimmers, Henk Duyts, Stefan Geisen, Mariangela Girlanda, Rob I Griffiths, Helene-Bracht Jørgensen, John Jensen, Pierre Plassart, Dirk Redecker, Rűdiger M Schmelz, Olaf Schmidt, Bruce C Thomson, Emilie Tisserant, Stephane Uroz, Anne Winding, Mark J Bailey, Michael Bonkowski, Jack H Faber, Francis Martin, Philippe Lemanceau, Wietse de Boer, Johannes A van Veen, Wim H van der Putten
ABSTRACT

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.

MATERIALS
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Product Description

Supelco
F.A.M.E. Mix, C4-C24, certified reference material,  wt. % (varied)