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 survey and chemical parameters evaluation in viticultural zoning

The most recent methodological developments in soil survey and land evaluation, that can be taken as reference in the viticultural field, go over usage of the GIS and database. These informatic tools, which begin to be widely utilised, consent to realise evaluations at different geographic scale and with different data quality and quantity in entrance.

The state-of-the-art of grapevine biotechnology and new breeding technologies (NBTS)

 The manipulation of the genetic basis controlling grapevine adaptation and phenotypic plasticity can be performed either by classical genetics or biotechnologies.

Using combinations of recombinant pectinases to elucidate the deconstruction of the polysaccharide‐rich grape cell wall during winemaking

The effectiveness of enzyme-mediated maceration processes in red winemaking relies on a clear picture of the target (berry cell wall structure) to achieve the optimum combination of specific enzymes to be used. However, we lack the information on both essential factors of the reaction (i.e. specific activities in commercial enzyme preparation and the cell wall structure of berry tissue). In this study, the different combinations of pure recombinant enzymes and the recently validated high throughput cell wall profiling tools were applied to extend our knowledge on the grape berry cell wall polymeric deconstruction during the winemaking following a combinatorial enzyme treatment design.

Structural composition of polymeric polyphenols of red wine after long-term ageing: effect of vinification technology

Aged red wines possess phenolic composition very different from young ones due to the transformations among native grape phenolics and the formation of new polymeric polyphenols during aging process.

The bottleneck/cork interface: A key parameter for wine aging in bottle

The shelf life of wine is a major concern for the wine industry. This is particularly true for wines intended for long cellaring, which are supposed to reach their peak after an ageing period ranging from a few months to several years, or even decades. Low, controlled oxygen inputs through the closure system are generally necessary for the wine to evolve towards its optimum organoleptic characteristics. Our previous studies have already shown that the interface between the cork and the bottleneck plays a crucial role in the transfer of oxygen into the bottled wine.