Terroir 2006 banner
IVES 9 IVES Conference Series 9 Soil or geology? And what’s the difference? Some observations from the New World

Soil or geology? And what’s the difference? Some observations from the New World

Abstract

Observational historical geology seeks to establish the evolutionary history of the surface of Earth. This approach is applicable not only to bedrock, but to the soft material that lies at the surface, the stuff called soil by most people. The geologic perspective provides a view of this material that is quite different from that of soil science, at least as practiced by many in America. Examples from the Walla Walla Valley of Washington and Oregon, and from the Napa Valley, illustrate the differences between these approaches. In Napa, correlation of grape character and viticultural realities with geologic observations suggests some underlying shared factor, perhaps drainage and water accessibility, but possibly influences of substrate temperature or microbiology. In addition, the geologic approach has proven useful in designing drainage and irrigation systems.

DOI:

Publication date: December 22, 2021

Issue: Terroir 2006

Type: Article

Authors

Jonathan SWINCHATT

EarthVision, Inc., 52 Cook Hill rd., Cheshire, CT. 06410, USA

Contact the author

Keywords

geology, soil, Napa, Walla Walla, terroir

Tags

IVES Conference Series | Terroir 2006

Citation

Related articles…

Chromatic characteristics of Nermantis and Termantis wines from traditional and withered grapes

The work aims to characterise the colour features of the wines of two new resistant varieties breeeded at the Edmund Mach Foundation (Italy) and recently inscribed in the Italian National Registriy of Vine Varieties.

The 1-hydroxyoctan-3-one, a molecule potentially involved in the fresh mushroom off-flavor in wines

An organoleptic defect, called fresh mushrooms off-flavor (FMOff), appeared in wines and spirits since the 2000’s. Numerous researches demonstrated that octen-3-one, 3-octanol and octen-3-ol (C8 compounds) were involved in the mushroom off-flavor in wines

Vineyard yield estimation using image analysis: assessing bunch occlusions and its dependency on fruiting zone canopy features

Performing accurate vineyard yield estimation is of upmost importance as it provides important benefits to the whole vine and wine industry. Recently, image-analysis approaches have been explored to address this issue however this approach has as main challenge the bunch occlusion, mostly by vegetation but also by neighboring bunches. The present work aims at assessing the magnitude of bunch occlusion by neighboring bunches and to evaluate its dependency on a selection of vegetative and reproductive vine parameters assessed at fruiting zone. Forty vine segments (1 m) of two vineyard plots of the white cultivars ‘Alvarinho’ and ‘Arinto’ were assessed for vegetative and reproductive features at fruiting zone and imaged with a 2D camera.

Factors influencing cover crop water competition in vineyards and implications for future drought adaptation

Vineyard water management in Australia is often associated with irrigation in warm and hot climates, but in cooler regions the larger share of the seasonal water demand is met by rainfall.

Comparison of the principal production methods for alcohol-free wine based on analytical parameters

Production, demand, and brand awareness of dealcoholized wine (<0.5% v/v) is steadily increasing worldwide. However, there have been few studies to date investigating and comparing the different physical processes for dealcoholizing wine.