Framework for high-resolution climate change impact assessment on grapevines at a regional scale

Understanding the impacts of climate change on viticulture is especially essential in those areas producing high-quality wines. In this work, we create an operational framework to investigate climate change impact on viticulture in the Tuscany region (central Italy) the viticulture industry of which relies on producing high-quality wines to compete in a global market. The framework includes (i) statistical downscaling of General Circulation Model (GCM) outputs for the period 1975–2099 to a local scale; (ii) the use of downscaling outputs as driving variables in specific simulation models; (iii) the spatial interpolation of model outputs to feed an economic and (iv) a quality model. The results show that as a consequence of a progressive increase in temperature and a decrease in rainfall, (a) the area potentially suitable for grapevine cultivation increases; (b) the grapevine growth cycle becomes shorter; (c) the final yield is gradually reduced, particularly in those areas characterised by quality cultivation regulation; and d) the premium wine quality production areas shift towards higher elevations. The proposed framework revealed itself to be an effective tool for climate change impact assessment at a very local scale. Additionally, this approach may be easily extended to testing the effect of different adaptation strategies in terms of management practices (e.g. irrigation) and grape varieties (e.g. longer or shorter cycle, advanced or delayed bud burst).

[1]  M. Bindi,et al.  Free Air CO2 Enrichment (FACE) of grapevine (Vitis vinifera L.) : II. Growth and quality of grape and wine in response to elevated CO2 concentrations , 2001 .

[2]  G. Peters.  THE EMERGENCE OF REGIONAL CULTIVAR SPECIALIZATIONS IN CALIFORNIA VITICULTURE , 1987 .

[3]  Hans R. Schultz,et al.  Climate change and viticulture: A European perspective on climatology, carbon dioxide and UV‐B effects , 2000 .

[4]  Robert E. Davis,et al.  Climate Influences on Grapevine Phenology, Grape Composition, and Wine Production and Quality for Bordeaux, France , 2000, American Journal of Enology and Viticulture.

[5]  R. Simoncini.  Governance objectives and instruments, ecosystem management and biodiversity conservation: the Chianti case study , 2011 .

[6]  D. Stephenson,et al.  Future extreme events in European climate: an exploration of regional climate model projections , 2007 .

[7]  Alain Bouquet,et al.  Biology of the Grapevine , 1992 .

[8]  Marco Bindi,et al.  Modelling the impact of future climate scenarios on yield and yield variability of grapevine , 1996 .

[9]  M. A. White,et al.  Climate Change and Global Wine Quality , 2005 .

[10]  Kurt Hornik,et al.  FEED FORWARD NETWORKS ARE UNIVERSAL APPROXIMATORS , 1989 .

[11]  Marco Bindi,et al.  Climatic changes and associated impacts in the Mediterranean resulting from a 2°C global warming , 2009 .

[12]  Analysis of Solanaceae Species Harvest-organ Growth by Linear Increase in Harvest Index and Harvest-organ Growth Rate , 2005 .

[13]  M. Semenov,et al.  USE OF A STOCHASTIC WEATHER GENERATOR IN THE DEVELOPMENT OF CLIMATE CHANGE SCENARIOS , 1997 .

[14]  N. Diffenbaugh,et al.  Extreme heat reduces and shifts United States premium wine production in the 21st century. , 2006, Proceedings of the National Academy of Sciences of the United States of America.

[15]  P. Jones,et al.  Assessment of climate extremes in the Eastern Mediterranean , 2005 .

[16]  M. Bindi,et al.  Consequences of climate change for European agricultural productivity, land use and policy , 2002 .

[17]  P. Harrison,et al.  The effects of climate variability and change on grape suitability in Europe , 1992 .

[18]  M. Bindi,et al.  European winegrowers’ perceptions of climate change impact and options for adaptation , 2009 .

[19]  Bette Hileman,et al.  CONSEQUENCES OF CLIMATE CHANGE: Government study finds negative effects on coastlines, water supplies, and health, but little economic impact on crops and forests , 2000 .

[20]  Leanne Webb,et al.  Modelled impact of future climate change on the phenology of winegrapes in Australia , 2007 .

[21]  J. Palutikof,et al.  Climate change 2007 : impacts, adaptation and vulnerability , 2001 .

[22]  Kurt Hornik,et al.  Multilayer feedforward networks are universal approximators , 1989, Neural Networks.

[23]  Marco Bindi,et al.  Influence of Water Deficit Stress on Leaf Area Development and Transpiration of Sangiovese Grapevines Grown in Pots , 2005, American Journal of Enology and Viticulture.

[24]  Robert Faivre,et al.  Spatialising crop models , 2004 .

[25]  A. J. Winkler,et al.  Composition and Quality of Musts and Wines of California Grapes , 1944 .

[26]  A. Venturi,et al.  Agrometeorological aspects of crops in Italy, Spain and Greece: a summary review for common and durum wheat, barley, maize, rice, sugar beet, sunflower, soya bean, rape, potato, tobacco, cotton, olive and grape crops. , 1992 .

[27]  Eric Duchêne,et al.  Grapevine and climatic changes: a glance at the situation in Alsace , 2005 .

[28]  Michele Brunetti,et al.  Temperature and precipitation variability in Italy in the last two centuries from homogenised instrumental time series , 2006 .

[29]  V. Sadras,et al.  Advancement of grapevine maturity in Australia between 1993 and 2006: putative causes, magnitude of trends and viticultural consequences , 2008 .

[30]  W. Kliewer.  Effect of High Temperatures during the Bloom-Set Period on Fruit-Set, Ovule Fertility, and Berry Growth of Several Grape Cultivars , 1977, American Journal of Enology and Viticulture.