Sustainability Report FY 2021

70 We manage as if we were guardians We grow by sharing Methodological notes Annex We preserve value through regeneration We respect our history through sustainable innovation The World Biodiversity Association considers the following 10 actions as the rulebook for biodiversity in agriculture: Cultural model Soil fertility Soil quality Water quality Air quality Environmental responsibility Renewable energy Agricultural and structural biodiversity Nectariferous species, hedges, woodland and meadows Water management 10. 1. 9. 2. 8. 3. 7. 4. 6. 5. sity Friend certification. Together, these analyses lead to the calculation of an index that certifies the biodiversity level for each of the three ele- ments, in particular: • Soil Biodiversity Index (IBS-bf) is calculated based on careful analysis of the soil, which through identifying the microbiome of the vineyard pinpoints the microbial commu- nities in the soil and their consolidation or increase, also depending on the actions taken in the vineyards, such as manuring and weed management; • Aquatic Biodiversity Index (IBA-bf) is based on assessing the hydromorphology and aqua- tic macroinvertebrate communities, which are Our modus operandi is based on these principles, and by subscribing to the World Biodiversity As- sociation program we strive to respect and im- plement processes and projects that aim to ma- nage water responsibly, ensure checks of weeds and parasites using low environmental impact methods, encourage the growth of hedges and woodland, as well as adopting rotation processes of cultivated land from the standpoint of conser- ving and increasing biodiversity on our estates and in surrounding areas. Soil, water and air are the three core elements on which specific surveys are conducted to ela- borate the parameters forming the basis of the suitability of being registered with the Biodiver-