Impacts of different agricultural practices on the biodiversity of microarthropod communities in arable crop systems

Jérôme Cortet (1) , Damien Ronce (2) , Nicole Poinsot-Balaguer (3) , Christian Beaufreton (4) , André Chabert (4) , Philippe Viaux (2) , Jorge Paulo Cancela de Fonseca (5)

1 CEFE - Centre d’Ecologie Fonctionnelle et Evolutive
2 ARVALIS - Institut du végétal [Paris]
3 IMEP - Institut Méditerranéen d'Ecologie et de Paléoécologie
4 Acta - Les instituts techniques agricoles
5 Laboratoire de Biologie Végétale et d'Ecologie Forestière

Two crop production systems, which differ on tillage and pesticides, were compared for biodiversity of soil microarthropod communities. A biodiversity index, which integrates different structure and density parameters (abundance, taxonomic richness, taxonomic diversity, coenotic diversity) was used. Results showed a greater biodiversity in minimum tillage systems compared to deep tillage systems. Pesticides seemed to be only a second order factor of variance on microarthropod biodiversity.

Mots clés: Microarthropods; Biodiversity; Low imput systems; Tillage; Pesticides; Arable crops

Domaines: Agronomie; Science des sols; Biodiversité et Ecologie

Jérôme Cortet, Damien Ronce, Nicole Poinsot-Balaguer, Christian Beaufreton, André Chabert, et al.. Impacts of different agricultural practices on the biodiversity of microarthropod communities in arable crop systems. European Journal of Soil Biology, 2002, 38 (3-4), pp.239-244. ⟨10.1016/S1164-5563(02)01152-4⟩. ⟨hal-03218304⟩