terclim by ICS banner
IVES 9 IVES Conference Series 9 Grapevine yield-gap: identification of environmental limitations by soil and climate zoning in Languedoc-Roussillon region (south of France)

Grapevine yield-gap: identification of environmental limitations by soil and climate zoning in Languedoc-Roussillon region (south of France)

Abstract

Grapevine yield has been historically overlooked, assuming a strong trade-off between grape yield and wine quality. At present, menaced by climate change, many vineyards in Southern France are far from the quality label threshold, becoming grapevine yield-gaps a major subject of concern. Although yield-gaps are well studied in arable crops, we know very little about grapevine yield-gaps. In the present study, we analysed the environmental component of grapevine yield-gaps linked to climate and soil resources in the Languedoc Roussillon. We used SAFRAN data and IGP Pays d’Oc wine yields from 2010 to 2018. We selected climate and soil indicators proving to have a significant effect on average wine yield-gaps at the municipality scale. The most significant factors of grapevine yield were the Soil Available Water Capacity; followed by the Huglin Index and the Climatic Dryness Index. The Days of Frost; the Soil pH; and the Very Hot Days were also significant. Then, we clustered geographical zones presenting similar indicators, facilitating the identification of resources yield-gaps. We discussed the number of zones with the experts of IGP Pays d’Oc label, obtaining 7 zones with similar limitations for grapevine yield. Finally, we analysed the main resources causing yield-gaps and the grapevine varieties planted on each zone. Mapping grapevine resource yield-gaps are the first stage for understanding grapevine yield-gaps at the regional scale.

DOI:

Publication date: May 5, 2022

Issue: Terclim 2022

Type: Poster

Authors

Hugo Fernandez-Mena1,2, Nicolas Guilpart 3, Philippe Lagacherie4, Renan Le Roux5, Mayeul Plaige1, Maxime Dumont1, Marine Gautier1, Jean-Marc Touzard6, Hervé Hannin7 and Christian Gary1

1UMR ABSys, AgroBiodiversified Systems, Montpellier, France
2UMR EMMAH, Modelling of Mediterranean Agroecosystems, Avignon, France
3UFR DISC, Cropping systems of Agroparistech, Paris, France
4UMR LISAH, Interactions in Soils and Water in Agroecosystems, Montpellier, France
5U. Agroclim, Agriculture and Climate, Avignon, France
6UMR Innovation, Montpellier, France
7UMR MoISA, Markets, Institutions and Strategies in Agriculture, Montpellier, France

Contact the author

Keywords

grapevine yield-gaps, climate and soil indicators, vineyard regional mapping, yield declining

Tags

IVES Conference Series | Terclim 2022

Citation

Related articles…

Establishment of a geodatabase ‘for the characterization of the viticultural “terroirs” of “canton de Vaud” (Switzerland)

La caractérisation objective des terroirs viticoles est nécessaire pour mieux comprendre les relations existantes entre les sols, la plante et la qualité de la production vinicole. Dans le cadre d’une recherche sur les terroirs viticoles du canton de Vaud – Suisse, un géorépertoire pédologique et agronomique a été conçu et réalisé.

The effects of reducing herbicides in New Zealand vineyards

Herbicides are commonly sprayed in the vine row to prevent competition with vines for water and minerals and to keep weeds from growing into the bunch zone. Sprays are applied before budbreak and reapplied multiple times during the season to keep the undervine bare. There is growing concern about the negative effects of herbicides on humans and the environment, and weeds in New Zealand have developed resistance to herbicides. Therefore, it is imperative that we reduce our reliance on herbicides in viticulture and incorporate methods that do not engender resistance.

ECA&D: A high-resolution dataset for monitoring climate change and effects on viticulture in Europe

Climate change will lead to persistent changes in temperature and precipitation patterns which will affect the characteristics of wine produced in each region.

Metabolic response of vitis vinifera and interspecific vitis sp. varieties to heat stress, water deficit and combined stress, using a metabolomic approach

As greenhouse gas emissions continue to rise, climate projections indicate an increased likelihood of heat waves and drier conditions in canada. these changes pose significant challenges to grapevine cultivation, particularly during critical growth stages such as new plantings. interspecific hybrid grape varieties, developed through different breeding programs that combine vitis vinifera with more robust species like v. riparia and v. labrusca varieties, are often touted for their potential resilience to environmental stress.

Microwave-assisted maceration and stems addition in Bonarda grapes: effects on wine chemical composition and sensory properties over two vintages

AIM: Bonarda, the second red grape variety in Argentina, produces high yields per hectare generating, in several cases, wines with low levels of quality compounds.