Cultural practices GHG mitigation according to climate change scenario
The principal objective of action B2 is to establish benchmarks for the vineyards involved in the trial and characterise the different emissions due to viticulture-related practices across Europe.
However, action B2 goes further; instead of evaluating only the GHG emissions, action B2 will develop a multi-criteria evaluation methodology with specific indicators of technical performances in order to highlight possible transfers of pollution. It is critical to check if the reduction of GHG emissions does not cause an increase of other environmental impacts and production costs.
This action has to supply data both for real practices applied in the field and for scenarios calculated by the model. Reference acquisition has to inform the multi-agent adaptation model (Action B1) with new constraints in order to improve the mitigation scenarios and offer solutions for cultural practices involving GHG mitigation according to climate change scenarios.
These indicators must also be communicated to the winemakers (Action B3) to allow them to evaluate the first steps in their change of practice, and to compare them in a second step to the performances of the modelled practices in order to build an action plan for their vineyards.
The following indicators will remain focused at the vineyard scale, and be used to evaluate each technical route:
- The direct use of inputs related to viticultural practices (energy, pesticides, fertilisers, water use)
- Cost of the operation
- The transfer of potential risks, linked mainly to the soil characteristics and vineyard management (for pesticides and fertilisers)
- The direct and indirect environmental impact on the air due to GHG emissions and on water quality due to pesticides and fertilisers
The aggregation of indicators may be considered at other scales, but this will be irrelevant and complicated to compute for certain indicators due to the heterogeneity and the lack of the information on the one hand, and on the other hand due to other important factors which are not taken into account in the methodology, like landscape features, buffer zones, dilution at the watershed scale, the impact of other activities…
Engineer Environment, Sustainable Development et Territory
Institut Français de la Vigne et du Vin
President of Ecoclimasol