Improvement of the environmental performance of winegrowing practices and risk analysis for grape quality: Step towards ecoqualiconception(C)

The evolution of technical management routes (TMRs) towards greater respect for the environment requires an assessment of environmental performances. In the context of sustainable management other factors must be taken into account, as the risk of grape quality changes. Environmental assessment results using the Life Cycle Assessment (LCA) method and the assessment of grape quality are based on numerous data and needs multicriteria decision-making analyzes. This work aims to show the interest of a joint evaluation method "environment and quality", in the process of change of practices to improve performances. The results obtained on 5 TMRs show a great difference of score between the 2 vintages studied and some practices were identified as having the biggest impact difference. Proposals for modifying practices were tested on a TMR. These theoretical proposals for changing practices improved the final environmental scores from + 0.15 points to + 0.77 points (/ 10) while studied independently and +2.29 points (/ 10) while combined. A model explaining the quality of grapes using viticultural practices verifies that the proposed new practices don't present a potential risk for grape quality. The method of joint evaluation CONTRA-QUALENVIC adapted to viticulture shows here that it can be a tool to help improving TMRs.