Featured Research

from universities, journals, and other organizations

Vineyard records link early grape ripening to climate change

Date:
March 15, 2012
Source:
CSIRO Australia
Summary:
By using decades of vineyard records, scientists have for the first time been able to attribute early ripening of wine grapes to climate warming and declines in soil water content.

Pinot Noir. Main Ridge Estate vineyard, Mornington Peninsula Victoria, Australia.
Credit: Dr Leanne Webb

By using decades of vineyard records, scientists have for the first time been able to attribute early ripening of wine grapes to climate warming and declines in soil water content. The study reveals that management factors has also influenced the shift, offering hope for growers to develop adaptation strategies.

The study was published in Nature Climate Change and was done by scientists from the University of Melbourne and the CSIRO.

Climate scientist and viticulturist Dr Leanne Webb, said while trends towards earlier ripening have been widely reported, a detailed study of the underlying causes of these shifts had not been done before.

"Changes to the timing of biological phenomena such as flowering and emergence of butterflies have been noted on many continents over recent decades," Dr Webb said.

"In some wine growing regions such as southern Australia, grape maturation dates have advanced about eight days per decade, with earlier maturing potentially impacting wine-grape quality and regional branding.

"This has been a study of potential influences on wine-grape maturity trends on a continental scale. On average, over the period 1985-2009, early ripening of Australian wine grapes are equally attributable to climate warming, declines in soil water content, and lower crop yields. An additional influence from changing management practices is also likely."

Human-induced climate change is a driver of grape ripening, given that previous studies have linked Australian temperature, and possibly rainfall to increasing greenhouse gas concentrations.

"The study will give wine growers a head start in developing adaptation strategies to meet evolving temperature and soil moisture shift," Dr Webb said.

"These strategies could include managing soil moisture content through increasing irrigation or mulching, vine rootstock choice, or managing crop yield.

"This study analysed harvest diaries from southern Australia for periods of up to 64 years. In contrast to previous studies that use harvest dates to indicate grape maturity, the research team examined berry-sugar concentration records to detect the trends to earlier wine grape ripening.

"The study centered on 10 wine growing sites in four states. These sites had records of observations for periods of more than 25 years. Nine of the ten sites had trends to earlier ripening. Only one Margaret River vineyard in Western Australia ripened later.

"In addition to informing the wine industry of adaptation options, we believe our study is also relevant to many other agricultural and non-agricultural sectors where trends in timing of biological phases have been detected.''

The paper was supported through the Australian Grape and Wine Research and Development Corporation and CSIRO's Climate Adaptation National Research Flagship.


Story Source:

The above story is based on materials provided by CSIRO Australia. Note: Materials may be edited for content and length.


Journal Reference:

  1. L. B. Webb, P. H. Whetton, J. Bhend, R. Darbyshire, P. R. Briggs, E. W. R. Barlow. Earlier wine-grape ripening driven by climatic warming and drying and management practices. Nature Climate Change, 2012; DOI: 10.1038/nclimate1417

Cite This Page:

CSIRO Australia. "Vineyard records link early grape ripening to climate change." ScienceDaily. ScienceDaily, 15 March 2012. <www.sciencedaily.com/releases/2012/03/120315095803.htm>.
CSIRO Australia. (2012, March 15). Vineyard records link early grape ripening to climate change. ScienceDaily. Retrieved September 30, 2014 from www.sciencedaily.com/releases/2012/03/120315095803.htm
CSIRO Australia. "Vineyard records link early grape ripening to climate change." ScienceDaily. www.sciencedaily.com/releases/2012/03/120315095803.htm (accessed September 30, 2014).

Share This



More Plants & Animals News

Tuesday, September 30, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

California University Designs Sustainable Winery

California University Designs Sustainable Winery

Reuters - US Online Video (Sep. 27, 2014) Amid California's worst drought in decades, scientists at UC Davis design a sustainable winery that includes a water recycling system. Vanessa Johnston reports. Video provided by Reuters
Powered by NewsLook.com
Argentina Worries Over Decline of Soybean Prices

Argentina Worries Over Decline of Soybean Prices

AFP (Sep. 27, 2014) The drop in price of soy on the international market is a cause for concern in Argentina, as soybean exports are a major source of income for Latin America's third largest economy. Duration: 01:10 Video provided by AFP
Powered by NewsLook.com
Mama Bear, Cubs Hang out in California Backyard

Mama Bear, Cubs Hang out in California Backyard

Reuters - US Online Video (Sep. 27, 2014) A mama bear and her two cubs climb trees, wrestle and take naps in the backyard of a Monrovia, California home. Vanessa Johnston reports. Video provided by Reuters
Powered by NewsLook.com
'Crazy' Climate Forces Colombian Farmers to Adapt

'Crazy' Climate Forces Colombian Farmers to Adapt

AFP (Sep. 26, 2014) Once upon a time, farming was a blissfully low-tech business on Colombia's northern plains. Duration: 02:05 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins