Dataset of agronomic, ecological and socio-economic functions from 24 winter cereals fields in northwestern France

This dataset contains 27 proxy values for 10 above- and below-ground potential functions used to calculate an agroecosystem multifunctionality index in 24 winter cereal fields in Zone Atelier Armorique, Brittany, France. Additional information on management practices and landscape context is provided as explanatory variables. In agreement with farmers, the geographical coordinates of surveyed fields are not provided. Date of data collection : from May 2024 to January 2025 (2026-09-23)