terclim by ICS banner
IVES 9 IVES Conference Series 9 OIV 9 OIV 2024 9 Short communications - Economy and law 9 Assessing the benefits of irrigation access: the case of Southern France vineyards

Assessing the benefits of irrigation access: the case of Southern France vineyards

Abstract

Agriculture worldwide is threatened by climate change. In particular, declining water resource availability combined with increasing water demand is a key challenge in many rainfed areas, where irrigation appears to be a straightforward adaptation option. In this context, assessing the impacts of irrigation adoption on farm yields and incomes is a necessary step to reflect on the impact of both ex-post and ex-ante policies. We develop an empirical setting to assess the benefits of irrigation access and adoption on estates located in the languedoc-roussillon wine producing basin between 2010 and 2020, when new irrigation networks have been developed. We merge data from the national agricultural census for each estate with fiscal data and wine register data. We rely on a propensity score matching analysis to assess the average treatment effect of different levels of irrigation intensity. We show that, on average, having more irrigated land leads to higher yields per hectare (5-10 additional hectoliters), however this doesn’t automatically translate into higher incomes. We discuss those impacts comparing different types of winegrowers.

Entwicklung der bewässerung der weinberge in sudfrankreich : bewertung der vorteile

Die landwirtschaft ist weltweit durch den klimawandel bedroht. Insbesondere die abnehmende verfügbarkeit von wasserressourcen in verbindung mit dem steigenden wasserbedarf ist eine zentrale herausforderung in vielen regengespeisten gebieten, in denen die bewässerung eine unkomplizierte anpassungsoption zu sein scheint. In diesem zusammenhang ist die bewertung der auswirkungen der bewässerung auf die landwirtschaftlichen erträge und einkommen ein notwendiger schritt, um über die auswirkungen von ex-post- und ex-ante-maßnahmen nachzudenken. Wir entwickeln einen empirischen rahmen, um die vorteile des zugangs zur bewässerung und der einführung der bewässerung auf weingütern im weinbaugebiet languedoc-roussillon zwischen 2010 und 2020 zu bewerten, wenn neue bewässerungsnetze entwickelt worden sind. Wir führen daten aus der nationalen landwirtschaftszählung für jedes weingut mit steuerdaten und weinregisterdaten zusammen. Wir stützen uns auf eine propensity-score-matching-analyse, um den durchschnittlichen behandlungseffekt der verschiedenen bewässerungsintensitäten zu bewerten. Wir zeigen, dass eine höhere bewässerungsintensität im durchschnitt zu höheren erträgen pro hektar führt (5-10 zusätzliche hektoliter), was sich jedoch nicht automatisch in höheren einkommen niederschlägt. Wir erörtern diese auswirkungen im vergleich verschiedener winzertypen.

Evaluer les bénéfices de l’accès à l’irrigation : le cas des vignobles du sud de la France

L’agriculture mondiale est menacée par le changement climatique. En particulier, la diminution de la disponibilité des ressources en eau combinée a l’augmentation de la demande est un défi majeur dans de nombreuses zones, où l’irrigation semble etre une option d’adaptation relativement simple. Dans ce contexte, l’évaluation de l’impact de l’adoption de l’irrigation sur les rendements et les revenus agricoles est une etape nécessaire pour réfléchir a l’impact de ces politiques d’adaptation, ex-post et ex-ante. Nous développons un cadre empirique pour evaluer les bénéfices de l’accès a l’irrigation dans les exploitations viticoles du languedoc-roussillon entre 2010 et 2020, période au cours de laquelle de nouveaux réseaux collectifs ont eté développés. Nous fusionnons les données du recensement national de l’agriculture pour chaque domaine avec les données fiscales et les déclarations de production viticole. Nous développons une analyse d’appariement par score de propension pour evaluer l’effet de traitement moyen de différents niveaux d’intensité d’irrigation. Nous montrons qu’en moyenne, le fait d’avoir plus de terres irriguées conduit a des rendements plus elevés par hectare (entre 5 et 10 hl supplémentaires), mais cela ne se traduit pas automatiquement par des revenus plus elevés. Nous discutons ces impacts en comparant différents types d’exploitations viticoles.

Publication date: November 18, 2024

Issue: OIV 2024

Type: Article

Authors

Juliette Le Gallo¹, Nina Graveline¹

¹ INRAE – Montpellier, France

Contact the author*

Tags

IVES Conference Series | OIV | OIV 2024

Citation

Related articles…

Yeasts protein extracts: new low impact tool for wine protein stability

Yeast protein extracts (ypes) have flocculating properties, allowing clarification of musts and wines. They are already authorized by oiv for fining purposes with a maximum dosage limit of 60 g/hl for red wines, and 30 g/hl for musts, white and rosè wines. The extraction of ypes from the cytoplasm of yeasts (saccharomyces spp) cells is defined by the resolution oiv oeno 452-2012, that indicate also some specification of the final product.

The legal concept of “cultural heritage” to refurbish the wine sector’s priorities

Following the latest oiv global report (april 26, 2024), the prevailing perception of wine consumption finds itself undergoing one of its most challenging adjustments. It’s plausible to anticipate a shift in the scope of pdo wines towards more human-centered products (wells and stiefel, 2019), necessitating the entire sector to adapt strategies to public interest patterns (touzeau, 2010: 17-31). Previously, a dominant notion of cultural property underscored the value of wine regions; the primary interest revolved around estate owners and retailers, along with vigneron tales.

New ways of grape pomaces valorization: production of functional beverages or nutraceuticals

The wine industry generates each year 20 million tons of by-products. Among them grape pomaces represent a big part that can be considered as a source of potentially bioactive molecules such as polyphenols. Kombucha fermentation is an ancestral process which allow to increase the biological properties of tea by the action of a microbial consortium formed by yeasts and bacteria called scoby.

Acumulación de materia seca, orientada a valorar la fijación de carbono, en función del aporte de riego y la pluviometría, en Cabernet-Sauvignon a lo largo de 15 años

The vineyard is capable of fixing carbon in its permanent structure from atmospheric carbon dioxide, through the process of gas exchange and the performance of photosynthesis. The photosynthetic capacity of the vineyard depends on the water resources that the plant may have at its disposal, so the amount of dry matter, derived from the processed photosynthates, that it can store will depend on the water regime of the crop, both in the annually renewable organs as in permanent parts.

Social and environmental impacts of the adoption of a variety of table grape in the region of vale do São Francisco – Brazil

This study explores and analyzes the socio-environmental implications associated with the cultivation of the “brs-vitoria” table grape variety. Focusing on its adoption by farmers in the vale do submédio São Francisco region in Brazil, this study delves into the diverse impacts and changes brought about since its introduction, encompassing both the social and environmental dimensions of agricultural practices in the area. Embrapa, brazil’s federal agricultural research institution, encompasses a network of 43 thematic research centers spread across the nation.