terclim by ICS banner
IVES 9 IVES Conference Series 9 Impact of climate change on the viticultural climate of the Protected Designation of Origin “Jumilla” (SE Spain)

Impact of climate change on the viticultural climate of the Protected Designation of Origin “Jumilla” (SE Spain)

Abstract

Protected Designation of Origin “Jumilla” (PDO Jumilla) is located in the Spanish provinces of Albacete and Murcia, in the South-eastern part of the Iberian Peninsula, where most of the models predict a severe impact of climate change in next decades. PDO Jumilla covers an area of 247,054 hectares, of which more than 22,000 hectares are under vines, mostly of Monastrell variety and certified organic. The main objective of this study is the analysis of the viticultural climate during the period 1980-2020 to assess the trends and the current impact of climate change on this wine-growing region where wine making represents the most important economic activity. For this purpose, temperature and precipitation data series from 74 weather stations located in the area has been analysed, grouped in intervals of 5, 10 and 20 years. 26 variables, including climatic bioclimatic indexes, growing season length, frost free period length, overlaps among them, and the indexes involved in the Geoviticulture MCC System have been calculated for each weather station and interval. Data from the last 20 years has been employed to propose a climate zoning of the PDO Jumilla following the methodology used by Gómez-Miguel and Sotés (1992-2019) in viticultural zonings carried out in Spain and Portugal, while previous data has been used to assess the climate trends. The results show the increase in minimum, mean, and maximum temperatures, the advancement of sprouting, and the increase of spring frosts risk in all the analysed weather stations, as well as changes in the viticultural climate in all the defined zones. The registered average increases in mean temperature, between 0.3 and 0.5 ºC per decade during the studied period, draw a concerning scenario that demands implementation of combined actions for the adaptation of the sector in this historical wine region.

Download the PDF

DOI:

Publication date: May 31, 2022

Issue: Terclim 2022

Type: Article

Authors

Joaquín Cámara1, Carolina Martínez2 and Vicente Gómez-Miguel3

1Diagnoterra, SL, Madrid, Spain
2Consejo Regulador de la Denominación de Origen Protegida “Jumilla”, Jumilla, Spain
3Department of Crop Science, Universidad Politécnica de Madrid, Madrid, Spain

Contact the author

Keywords

climate change, climate zoning, PDO Jumilla, geoviticulture MCC system, climate trends

Tags

IVES Conference Series | Terclim 2022

Citation

Related articles…

The influence of terroir on the quality of wine of the Cahors A.O.C

Dans le but d’améliorer la qualité et la typicité des vins de l’Appellation d’0rigine Contrôlée CAHORS, une étude a été réalisée afin de mettre en évidence l’adéquation Cépage-Terroir- Qualité du vin.
Selon la méthodologie proposée par MORLAT et ASSELIN (1992), neuf unités terroirs ont été déterminées. Sur chacune, des parcelles de référence homogènes quant au matériel végétal Cot ou Malbec ( cépage principal de cette appellation greffé sur S04, et aux méthodes culturales, ont été suivies au niveau agronomique et œnologique (GARCIA et al., 1996).

Read More

Vineyard soil mapping to optimise wine quality: from ‘terroir’ characterisation to vineyard management

In this study, a soil mapping methodology at subplot level (scale 1:5000) for vineyard soils was developed. The aim of this mapping method was to establish mapping units, which could be used as basic units for ‘terroir’ characterisation and vineyard management (precision viticulture).

Read More

What do we know about the kerosene/petrol aroma in riesling wines?

1,1,6-Trimethyl-1,2-dihydronaphthalene (TDN) is a controversial aroma component found in Riesling wines. It belongs to the family of C13-norisoprenoids and is mainly associated with kerosene/petrol notes. TDN can add complexity to the wine aroma at medium – low concentrations and deteriorate the wine bouquet when its content is high. No TDN aromas are usually perceived in young Riesling wines, but they can appear after several years of aging due to the gradual formation of TDN. Management of TDN in Riesling wines is an actual task, since global warming can promote formation of this compound and compromise the aromatic composition of wine. Therefore, the aim of the current work was, firstly, to study the sensory particularities of TDN in Riesling wine at various concentrations. Secondly, to investigate the ability of bottle closures to absorb (scalp) TDN from Riesling wine under various storage conditions. These studies also include the comparative assessment of our findings with previously published data. METHODS: sensory analysis, GC-MS (SBSE), HPLC,1H-NMR and other methods related to the synthesis and determination of TDN. RESULTS: First of all, the method of the synthesis of highly purified TDN (95% and 99.5%) was optimized [1].

Read More

Variability in the content of coarse elements in a viticultural plot in the Graves appellation: relationship with geophysical data

Il a été souvent démontré (Seguin, 1970), que les meilleurs terroirs sont ceux qui présentent pendant la période de maturation du raisin, une régulation et une limitation de l’alimentation hydrique de la vigne. Si on s’intéresse aux facteurs influençant ce régime hydrique, on constate le rôle prépondérant du taux d’éléments grossiers non poreux qui limitent la réserve utile du sol en diminuant le taux de terre fine. De plus, ces éléments grossiers jouent également un rôle au niveau du pédo-climat thermique car leur conductivité thermique et leur chaleur spécifique sont plus élevées que celles de la terre fine. Ainsi le sol se réchauffera et se refroidira plus rapidement (Saini et McLean, 1967), (Gras, 1994).

Read More

Oxygen transfer through cork stoppers

During wine conservation in a bottle, the control of oxygen transfer from the outside environment to the wine inside the bottle is a key parameter that determines the wine quality. Many other factors can also influence the evolution of wine during postbottling aging,

Read More