Is There a Scientific Method of Evaluating the Qualitative Potential of a Vineyard?

The Bigot Index (Indice Bigot) is a scientific method of evaluating the qualitative potential of a vineyard.
Giovanni Bigot from Friuli is an expert in organic viticulture, he advises wineries and associations in Italy and other countries. The agronomist has developed an innovative method to measure the qualitative potential of a vineyard.
The index gives winemakers the chance to evaluate their vineyards objectively. It is based on nine internationally recognised agronomic factors that influence grape quality. Until now, these individual aspects were each considered separately. The index takes them all into account at the same time. This is new. It shows the winegrower precisely where there is still room for improvement. Through appropriate work in the vineyard, the quality of the later wine can thus sometimes be improved. The rating scale ranges from 0 to 100 points.
The nine parameters are: Cane yield, canopy surface area, ratio between canopy surface area and canopy yield, grape health, grape morphology - i.e. how loose or compact the grapes are -, water stress, vigour, biodiversity and finally vineyard age.
Bigot looks at vineyards as complex ecosystems impacted by both nature and man.
It's about aspects that the winemaker can influence through his actions. How does the age of the vineyard fit into this, since the influence is at most of a long-term nature?
True, but the age of the vines is an important factor. When you are aware of this, you think twice about uprooting an old vineyard just because, for example, yields have declined or because the tramlines are too narrow for the new tractor. Old vines are in a natural equilibrium, there is neither water overabundance nor great water stress, their grapes are always looser, the fruit thicker-skinned than young plants and much more.

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