Effect of Geogenic Lead on Fungal and Collembolan Communities in Garden Topsoil

Research areas:
Year:
2018
Keywords:
functional diversity, functional trait, soil fauna, soil food web, vegetable garden, urban soil
Authors:
  • Sophie JOIMEL
  • Hervé Capiaux
  • Christophe SCHWARTZ
  • Mickaël HEDDE
  • Thierry Lebeau
  • Cécile LE GUERN
  • Johanne NAHMANI
  • Céline PERNIN
  • Sandrine SALMON
  • Lucia SANTORUFO
  • Béatrice BÉCHET
  • Jérôme CORTET
Journal:
Pedosphere
Volume:
28
Number:
2
Pages:
215 - 226
ISSN:
1002-0160
BibTex:
Note:
Special Issue on Soil Microbes and Sustainable Agriculture
Abstract:
Geogenic lead (Pb) is considered to be less bioavailable than anthropogenic Pb and exerts less effect on the soil fauna. However, Pb contamination in vegetables has been reported in the case of geogenic anomalies, even at moderate concentrations (around 170 mg kg–1). In this study, we investigated collembolan communities using both taxonomic- and trait-based approaches and observed fungal communities to assess the effects of a moderate geogenic Pb anomaly on collembolans and fungi in an urban vegetable garden soil. Results indicated that geogenic Pb indeed modified fungi communities and altered the functional structure of collembolan communities in garden soils. Although geogenic Pb presented low bioavailability, it affected soil fauna and vegetables similar to anthropogenic Pb.