Terroir 2006 banner
IVES 9 IVES Conference Series 9 Characterization of spatial and temporal soil water status in vineyard by DC resistivity measurements

Characterization of spatial and temporal soil water status in vineyard by DC resistivity measurements

Abstract

We performed a DC resistivity monitoring experiment during eight months in 2003. Low, medium and high resolution measurements have been carried out at various locations of a vineyard. General apparent resistivity mapping evidences the spatial variations of the summer drying of the subsurface.
Three experiments have been conducted in the studied area :
– parallel 2-D dipole-dipole sections (96 electrodes at 1 meter spacing). The sections are orientated in the long direction of the studied area and located between the vine rows. After inversion, these sections allow to describe the vertical variations of the electrical resistivity and help to specify the 3D geological sketch of the studied area down to three meters.
– high resolution « borehole like » tomographic sections obtained with a custom electrode set. Three PVC rods, two of them vertically placed and one horizontal between the two vertical carry 48 stainless steel electrodes, 0.13 m spaced. This allows to investigate a 4 squared meters section with electrodes on three sides of it. Two of these devices were placed within the sudied area. Moisture measurements were performed in the investigated section with time domain reflectivity probes. High resolution cross borehole tomography shows moisture variation at the vine stock scale, and short time interval such as the diffusion af a rainfall.

DOI:

Publication date: December 22, 2021

Issue: Terroir 2006

Type: Article

Authors

J.P. GOUTOULY (1), D. ROUSSET (2), H. PERROUD (2) et J.P. GAUDILLÈRE (1)

(1) I.N.R.A.- UMR Œnologie-Ampélologie, Équipe Écophysiologie and Agronomie Viticole,
71, avenue Édouard-Bourlaux B.P.81 33883 Villenave d’Ornon cedex, France
(2) CNRS –UPPA Modélisation et Imagerie en Géosciences, avenue de l’Université 64000 Pau, France

Contact the author

Keywords

Vitis vinifera, tomography, water content, root absorption, variability

Tags

IVES Conference Series | Terroir 2006

Citation

Related articles…

Soil and Climate Interactions with Grapevines

To test the hypothesis that soil type plays a minor role relative to that of vine vigor in the determination of yield, fruit composition and wine sensory attributes, 5 Chardonnay vineyards in the Niagara

Effects of regulated deficit irrigation (RDI) on grape composition in Monastrell grapevines under semiarid conditions

The influence of two pre-veraison and post-veraison regulated deficit irrigation (RDI) strategies on yield and grape quality was analyzed during a two year period for mature grapevines (cv. Monastrell) in Southeastern of Spain

Using ΔC13 to assess viticultural and oenological suitability for Sangiovese of different pedoclimatic conditions in Chianti

A two years trial was carried out in Chianti (Central Italy) to assess at the detailed scale the viticultural and oenological suitability for Sangiovese of different pedoclimatic conditions, by means of the ΔC13 measured in the must sugars

To what extent does vine balance actually drive fruit composition?

Context and purpose of the study ‐ Vine balance is a concept describing the relationship between carbon assimilation (usually estimated using a measure of vine vigour, e.g. pruning weight) and its utilisation for fruit production (usually estimated using harvest yield). Manipulating vine balance through leaf area or crop load adjustments affects the proportion of the vine’s total carbohydrate production required to mature the fruit. It is commonly considered that composition of the berry, and resulting wine, is strongly affected by vine balance.

Innovative approaches for fungicide resistance monitoring in precision management of grapevine downy mildew

Effective control with fungicides is essential to protect grapevine from downy mildew, a devastating disease caused by the oomycete Plasmopara viticola. Managing this disease faces challenges in maintaining fungicide efficacy as the number of modes of action decreases and the risk of fungicide resistance increases. Long-term measures should address strains resistant to multiple modes of action, that can be selected by the repeated use of single-site fungicides. For these reasons, a precision management of the disease, that considers the selection of the best fungicide schedule according to the sensitivity profile of the pathogen population, is needed.