Assessment of biodiversity and agronomic parameters in two Agroforestry vineyards Josépha Guenser, Emilie Bourgade, Marc Vergnes, Thierry Dufourcq and Séverine Mary E3S Web Conf., 50 (2018) 01013 Published online: 22 August 2018 DOI: 10.1051/e3sconf/20185001013