Soil food web properties explain ecosystem services across European land use systems

Research output: Contribution to journalArticle

  • External authors:
  • Elisa Thébault
  • Mira Liiri
  • Klaus Birkhofer
  • Maria A. Tsiafouli
  • Lisa Bjørnlund
  • Helene Bracht Jørgensen
  • Mark Vincent Brady
  • Søren Christensen
  • Peter C. De Ruiter
  • Tina D'Hertefeldt
  • Jan Frouz
  • Katarina Hedlund
  • Lia Hemerik
  • W. H. Gera Hol
  • Stefan Hotes
  • Simon R. Mortimer
  • Heikki Setälä
  • Stefanos P. Sgardelis
  • Karoline Uteseny
  • Wim H. Van Der Putten
  • Volkmar Wolters

Abstract

Intensive land use reduces the diversity and abundance of many soil biota, with consequences for the processes that they govern and the ecosystem services that these processes underpin. Relationships between soil biota and ecosystem processes have mostly been found in laboratory experiments and rarely are found in the field. Here, we quantified, across four countries of contrasting climatic and soil conditions in Europe, how differences in soil food web composition resulting from land use systems (intensive wheat rotation, extensive rotation, and permanent grassland) influence the functioning of soils and the ecosystem services that they deliver. Intensive wheat rotation consistently reduced the biomass of all components of the soil food web across all countries. Soil food web properties strongly and consistently predicted processes of C and N cycling across land use systems and geographic locations, and they were a better predictor of these processes than land use. Processes of carbon loss increased with soil food web properties that correlated with soil C content, such as earthworm biomass and fungal/bacterial energy channel ratio, and were greatest in permanent grassland. In contrast, processes of N cycling were explained by soil food web properties independent of land use, such as arbuscular mycorrhizal fungi and bacterial channel biomass. Our quantification of the contribution of soil organisms to processes of C and N cycling across land use systems and geographic locations shows that soil biota need to be included in C and N cycling models and highlights the need to map and conserve soil biodiversity across the world.

Bibliographical metadata

Original languageEnglish
Pages (from-to)14296-14301
Number of pages5
JournalProceedings of the National Academy of Sciences of the United States of America
Volume110
Issue number35
DOIs
Publication statusPublished - 27 Aug 2013