Terroir 1996 banner
IVES 9 IVES Conference Series 9 Comportement hydrique des sols viticoles et leur influence sur le terroir

Comportement hydrique des sols viticoles et leur influence sur le terroir

Abstract

L’étude des relations Terroir – Vigne – Raisin est complexe. La recherche et le développement des facteurs qualitatifs qui influencent le caractère des vins sont multiples. Divers travaux mettent en évidence la relation entre l’alimentation en eau de la plante, son développement végétatif et les caractéristiques de ses raisins. Après étude agropédologique préliminaire, nous avons implanté des tubes neutroniques dans les vignobles du Mandement (canton de Genève) et de Chamoson (canton du Valais), à des profondeurs se situant entre 4 et 9 mètres. Nous avions pour but de considérer le régime hydrique de quelques sols caractéristiques. En parallèle, nous avons enregistré les paramètres mésoclimatiques et microclimatiques des régions concernées, observé le développement du végétal et suivi l’évolution de la maturation des baies.
Dans ce contexte, nous nous sommes intéressés plus particulièrement à l’influence du régime hydrique, sans négliger la problématique de l’irrigation. L’on ne saurait aborder ce sujet sans tenir compte de l’enracinement de la vigne: les racines explorent non seulement les premiers décimètres du sol, mais également, lorsque les conditions les y obligent, le sous-sol, allant parfois même jusqu’à pénétrer la roche-mère. Ainsi assurent-elles l’alimentation en eau de la vigne.

DOI:

Publication date: March 2, 2022

Issue: Terroir 1998

Type: Article

Authors

HERVÉ DETOMASI

École d’ingénieurs de Changins, 1260 Nyon, Suisse

Tags

IVES Conference Series | Terroir 1998

Citation

Related articles…

Effects of the biodynamic preparations 500 and 501 on vine and berry physiology, pedology and the soil microbiome

In the pursuit of increasing sustainability, climate change resiliency and independence of synthetic pesticides in agriculture, the interest of consumers and producers in organic and biodynamic farming is steadily increasing. This is in particular the case for the vitivinicultural industry in Europe, where more and more producers are converting from organic to biodynamic farming. However, clear scientific evidence showing that biodynamic farming improves vine physiology, vine stress resilience, berry or wine quality, or is more sustainable for the environment is still lacking although this issue has been addressed by several research teams worldwide.

Combination of NIR multispectral information acquired from a ground moving vehicle with AI methods to assess the vine water status in a Tempranillo (Vitis vinifera L.) commercial vineyard

Increasing water scarcity and unpredictable rainfall patterns necessitate efficient water management in grape production. This study proposes a novel approach for monitoring grapevine water status in a commercial vertically-shoot-positioned Vitis vinifera L. Tempranillo vineyard using non-invasive spectroscopy with a battery of different AI methods to assess vineyard water status, that could drive precise irrigation. A contactless, miniature NIR spectrometer (900-1900 nm) mounted on a moving vehicle (3 Km/h) was employed to collect spectral data from the vines’ northeast side along six dates in season 2021.

Understanding the physiological responses of Sauvignon blanc vines to sequential extreme weather events: implications for vineyard management in a changing climate

Climate plays a predominant role in vines’ growth and productivity and several environmental variables are already known to pose challenges to grapevine production and the horticultural industry as a whole. In this context, a number of extreme weather events already occurring and expected to occur in the next decades even more frequently and with higher magnitude results from current climate change scenario. The aim of this study was to examine the physiological responses of roots, leaves, and berries of Vitis vinifera cv. Sauvignon blanc to consecutive and combined stressors simulated in a semi-controlled environment.

Exploring the potential of agrivoltaics in German vineyards: A GIS-based assessment

The growing demand for renewable energy and sustainable agricultural practices has highlighted the potential of agrivoltaics (Agri-PV) as a promising solution, particularly in the context of German viticulture.

La zonazione viticola e i compiti dell’amministrazione regionale

Solo attraverso un adeguato intervento di estirpazione e reimpianto dei vigneti è possibile preservare, adeguare e valorizzare il patrimonio viticolo e le produzioni che da esso derivano.
Il reimpianto dei vigneti è pertanto da intendersi come una normale pratica agricola, alla pari della rimonta di stalla in campo zootecnico, ma può assumere toni problematici quando, come si verifica adesso in Toscana per una serie di circostanze legate alla profonda trasfor­mazione della viticoltura avvenuta negli ultimi 30 anni, troppi impianti giungono contem­poraneamente a fine ciclo produttivo e devono essere rinnovati.