Les terroirs du vin de Cahors

Abstract : Between Cahors and Soturac, the vineyard of Cahors – a guaranteed vintage- is situated in the mid-Lot valley, which has silicious terraced rows on its hillsides, and on its bordering plateaux, composed of limestone of the secondary or tertiary geological eras. In order to study and do a cartography of the « terroirs » in the 45 rural districts which include the area concerned (a project commissioned by the local and national authorities), we defined a scale comprising twelves criteries for differenciating the « terroirs »; this enabled us to describe and do a cartography of them on a scale of 1/25 000. This epistemological and applied approach led us to extend our research by following three main lines: - an extensive study of the « terroirs » by taking soil samples, which was consequently furthered by soil analyses and they showed the differentiation between the various « terroirs » according to their soil; - a study of the area's topoclimates, by examining the daily temperatures according to each « terroir », and by elaborating a numerical model of ground which enabled us to examine the shadows cast according to the slopes or the exposure; - a study of the links between each « terroirs » and the qualities of the wine over five years, either by tasting them or making chemical analyses of the microvinifications, which showed that there is a hierarchy between the « terroirs ».
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https://hal.archives-ouvertes.fr/hal-00455231
Contributor : Éric Rouvellac <>
Submitted on : Tuesday, February 9, 2010 - 5:59:23 PM
Last modification on : Friday, February 22, 2019 - 1:32:47 AM

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  • HAL Id : hal-00455231, version 1

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Éric Rouvellac. Les terroirs du vin de Cahors. PULIM. Presses Universitaires de Limoges (PULIM), pp.254, 2005. ⟨hal-00455231⟩

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