Effetti del cambiamento climatico europeo sulle epoche di vendemmia in Abruzzo

Abstract

[English version below]

I dati termo-pluviometrici del periodo 1971-2009 registrati da alcune stazioni della regione Abruzzo sono stati analizzati adottando alcuni semplici indici climatici e bioclimatici. E’ stato valutato il verificarsi di cambiamenti climatici così come le loro ripercussioni sulle date di inizio vendemmia. La data di vendemmia è risultata significativamente influenzata dalle disponibilità termiche e in particolare dalle Ore Normali di Caldo (NHH) cumulate nel periodo marzo-giugno. L’analisi statistica dei trend temporali dell’ accumulo di NHH in marzo-giugno ha individuato una discontinuità climatica che ricade nel 1984 per la collina litoranea centrale, nel 1997 per la collina litoranea meridionale e nel 1998 per la collina interna del pescarese. Questi punti di discontinuità sono risultati in buon accordo con i punti di discontinuità delle date di inizio raccolta e possono pertanto rappresentare lo spartiacque tra la precedente e l’attuale fase climatica. Quest’ultima si caratterizza per un anticipo della data di raccolta rispettivamente di 10 giorni per la collina litoranea meridionale , 15 per la collina litoranea centrale e 14 per la collina interna.

Thermo-pluviometric data registered in the period 1971-2009 by three hillside stations of the Abruzzi located in maritime areas (central and southern part of the region) and in the internal zone were analyzed adopting some simple climatic and bioclimatic indices. Occurrence of climate change was evaluated as well as its influence on harvest dates. Harvest dates were significantly influenced by thermal availability, mainly when it was measured by Normal Heat Hours referred to the period March-June (NHH march-june). The statistical analysis of the temporal trends of NHH march-june has identified change-points occurred in a lapse of time from 1984 to 1998. The first abrupt change happened in central maritime area (1984), followed in 1997 and 1998 seasons by change-points respectively registered in southern maritime area in the internal zone. These NHH march-june break-points were in a good relationship with harvest date break-points and seem to well represent the watershed between the previous and the current climatic phase. This latter is characterized by an advance in harvest date around 10 days in southern maritime area and averaging 14-15 days in central maritime area and internal zone.

DOI:

Publication date: December 3, 2021

Issue: Terroir 2010

Type: Article

Authors

B. Di Lena (1)(2) , L. Mariani (3), F. Antenucci (2), O. Silvestroni (1)

(1) Dip. Scienze Ambientali e delle Produzioni Vegetali, Università Politecnica delle Marche, Via Brecce bianche, 60131 Ancona
(2) Regione Abruzzo – Arssa – Centro Agrometeorologico Regionale, C.da Colle Comune, 66020 Scerni (Chieti)
(3) Università di Milano- Dipartimento di Produzione Vegetale, Via Celoria, Milano

Keywords

Vitis vinifera, fenologia, ore normali di caldo
Vitis vinifera, climate change, harvest date

Tags

IVES Conference Series | Terroir 2010

Citation

Related articles…

In vitro tissue culture as a tool for Croatian grapevine germplasm management

In vitro culture makes it possible to carry out specific studies that would not be possible with whole plants grown in the field or in a greenhouse. Cryopreservation allows long-term preservation without metabolic changes in the plant material and cryotherapy can be efficient in virus elimination, which is a major scientific challenge. The preculture media of cryopreservation protocols were evaluated on three Croatian grape varieties with different antioxidants (salicylic acid, ascorbic acid and glutathione). The highest growth in vitro was achieved on the medium with the addition of glutathione and the lowest with the addition of salicylic acid.

Effects of auxin treatment on compositional and molecular ripening dynamics in grape varieties of northern Italy

Context and purpose of the study. The temperature increase related to ongoing climate changes is causing a progressive anticipation of the ripening time, negatively affecting grape quality at harvest.

Metabolomic profiling of heat-stressed grape berries 

The projected rise in mean air temperatures together with the frequency, intensity, and length of heat waves in many wine-growing regions worldwide will deeply impact grape berry development and quality. Several studies have been conducted and a large set of molecular data was produced to better understand the impact of high temperatures on grape berry development and metabolism[1]. According to these data, it is highly likely that the metabolomic dynamics could be strongly modulated by heat stress (HS).

Influence of nitrogen supply on colorimetric parameters of Lugana wines

Color is one of the main qualitative parameters of a wine. As a matter of fact, immediately after having opened a bottle of wine, color, even before aroma and taste, is the first sensorial parameter to be evaluated by the consumer It can change according to various factors depending on the characteristics of the grapes or on the different production and storage processes.

Identification of loci associated with specialised metabolites in Vitis vinifera

Secondary (or specialised) metabolites such as terpenes and phenolic compounds are produced by plants for various roles which include defence against pathogens and herbivores, protection against abiotic stress, and plant signalling. Additionally, these metabolites influence grapevine quality traits such as colour, aroma, taste, and nutritional value. However, the biosynthesis of these metabolites is often complex and controlled by multiple genes which in grapevine are predominantly uncharacterised.