Impact of climate change on some grapevine varieties grown in Peru for Pisco production

Aim: The Peruvian region of Ica is an important area of grapevine cultivation, mainly for the production of pisco, the flagship hard drink of Peru. The effects of a changing climate have been assessed using the recorded temperatures of a weather station together with projected climates for the 21st century generated under the A1B SRES scenario.Methods and results: The bioclimatic indices commonly used in grapevine studies have increased in recent years and will continue to rise along the 21st century in relation to increasing temperature. In parallel, the phenology of four pisco cultivars (Quebranta, Torontel, Moscatel and Italia) has been experimentally assessed during four consecutive years, first to determine their cumulative growing degree-days and then to project them in past and future climates.Conclusion: It appears that the cycle lengths of these cultivars have been shortened in recent years and that this tendency will continue all along the 21st century.Significance and impact of the study: Assessing the immediate and future impact of climate change makes it possible to identify potential crop production problems and provides information on adaptation strategies.

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Potential impacts of climate change on corn, soybeans and barley yields in Atlantic Canada

Canadian Journal of Soil Science ◽

10.4141/s04-025 ◽

2005 ◽

Vol 85 (2) ◽

pp. 345-357 ◽

Cited By ~ 22

Author(s):

A. Bootsma ◽

S. Gameda ◽

D. W. McKenney

Keyword(s):

Climate Change ◽

Direct Effect ◽

Crop Production ◽

Field Trials ◽

Growing Degree Days ◽

Degree Days ◽

Atlantic Region ◽

Water Deficits ◽

Heat Units ◽

Impacts Of Climate Change

In this paper, relationships between agroclimatic indices and average yields of grain corn (Zea mays L.), soybeans (Glycine max L. Merr.) and barley (Hordeum vulgare L.) in field trials conducted in eastern Canada are explored and then used to estimate potential impacts of climate change scenarios on anticipated average yields and total production of these commodities for the Atlantic region for the 2040 to 2069 period. Average yields of grain corn and soybeans were highly correlated (R2 = 0.86 and 0.74, respectively) with average available crop heat units (CHU), with yields increasing by about 0.006 t ha-1 CHU-1 for corn and 0.0013 t ha-1 CHU-1 for soybeans. The explained variance was not improved significantly when water deficit (DEFICIT) was included as an independent variable in regression. Correlations between average yields of barley and effective growing degree-days (EGDD) were low (R2 ≤ 0.26) and negative, i.e., there was a tendency for slightly lower yields at higher EGDD values. Including a second-order polynomial for DEFICIT in the regression increased the R2 to ≥ 0.58, indicating a tendency for lower barley yields in areas with high water deficits and with water surpluses. Based on a range of available heat units projected by multiple General Circulation Model (GCM) experiments, average yields achievable in field trials could increase by about 2.6 to 7.5 t ha-1 (40 to 115%) for corn, and by 0.6 to 1.5 t ha-1 (21 to 50%) for soybeans by 2040 to 2069, not including the direct effect of increased atmospheric CO2 concentrations, advances in plant breeding and crop production practices or changes in impacts of weeds, insects and diseases on yield. Anticipated reductions in barley yields are likely to be more than offset by the direct effect of increased CO2 concentrations. As a result of changes in potential yields, there will likely be significant shifts away from production of barley to high-energy and high-protein crops (corn and soybeans) that are better adapted to the warmer climate. However, barley and other small grain cereals will likely remain as important crops as they are very suited for rotation with potatoes. There is a need to evaluate the potential environmental impacts of these possible shifts in crop production, particularly with respect to soil erosion in the region. Key words: Crop heat units, growing degree-days, water deficits, crop yields, climate change, Atlantic region

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Assessing potential climate change pressures across the conterminous United States: mapping plant hardiness zones, heat zones, growing degree days, and cumulative drought severity throughout this century

10.2737/nrs-rmap-9 ◽

2018 ◽

Cited By ~ 5

Author(s):

Stephen N. Matthews ◽

Louis R. Iverson ◽

Matthew P. Peters ◽

Anantha Prasad

Keyword(s):

Climate Change ◽

United States ◽

Drought Severity ◽

Growing Degree Days ◽

Degree Days ◽

Plant Hardiness ◽

Potential Climate Change

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Mid-Holocene climate change in Europe: a data-model comparison

Climate of the Past ◽

10.5194/cp-3-499-2007 ◽

2007 ◽

Vol 3 (3) ◽

pp. 499-512 ◽

Cited By ~ 70

Author(s):

S. Brewer ◽

J. Guiot ◽

F. Torre

Keyword(s):

Climate Change ◽

Data Model ◽

General Circulation ◽

Model Comparison ◽

General Circulation Models ◽

Growing Degree Days ◽

Degree Days ◽

European Continent ◽

Holocene Climate Change ◽

Correct Location

Abstract. We present here a comparison between the outputs of 25 General Circulation Models run for the mid-Holocene period (6 ka BP) with a set of palaeoclimate reconstructions based on over 400 fossil pollen sequences distributed across the European continent. Three climate parameters were available (moisture availability, temperature of the coldest month and growing degree days), which were grouped together using cluster analysis to provide regions of homogenous climate change. Each model was then investigated to see if it reproduced 1) similar patterns of change and 2) the correct location of these regions. A fuzzy logic distance was used to compare the output of the model with the data, which allowed uncertainties from both the model and data to be taken into account. The models were compared by the magnitude and direction of climate change within the region as well as the spatial pattern of these changes. The majority of the models are grouped together, suggesting that they are becoming more consistent. A test against a set of zero anomalies (no climate change) shows that, although the models are unable to reproduce the exact patterns of change, they all produce the correct signs of change observed for the mid-Holocene.

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Assessment Model Impact of Climate Change on Potential Production for Food and Energy Needs for the Coastal Areas of Bengkulu, Indonesia

Agro Bali: Agricultural Journal ◽

10.37637/ab.v4i2.714 ◽

2021 ◽

Vol 4 (2) ◽

pp. 159-169

Author(s):

Eko Sumartono ◽

Gita Mulyasari ◽

Ketut Sukiyono

Keyword(s):

Climate Change ◽

Food Availability ◽

Crop Production ◽

Coastal Areas ◽

Appropriate Technology ◽

Assessment Model ◽

Small Scale ◽

Impact Of Climate Change ◽

Food Reserves ◽

The Impact

Bengkulu is said to be the center of the world's climate because of the influence of water conditions and the topography of the area where the rain cloud formation starts. The waters in Bengkulu Province become a meeting place for four ocean currents which eventually become an area where the evaporation process of forming rain clouds becomes the rainy or dry season and affects the world climate. Method to analyze descriptively, shows oldeman Classification and satellite rainfall estimation data is added. In relation to the Analysis of Potential Food Availability for the Coastal Areas of Bengkulu Province uses a quantifiable descriptive analysis method based. The results show that most are included in the Oldeman A1 climate zone, which means it is suitable for continuous rice but less production due to generally low radiation intensity throughout the year. In an effort to reduce or eliminate the impact of climate change on food crop production, it is necessary to suggest crop diversification, crop rotation, and the application of production enhancement technologies. Strategies in building food availability as a result of climate change are: First, develop food supplies originating from regional production and food reserves on a provincial scale. Second, Empowering small-scale food businesses which are the dominant characteristics of the agricultural economy, especially lowland rice and horticultural crops. Third, Increase technology dissemination and increase the capacity of farmers in adopting appropriate technology to increase crop productivity and business efficiency. Four, Promote the reduction of food loss through the use of food handling, processing and distribution technologies.

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Climate change impacts on viticulture in Italy

10.5194/egusphere-egu21-3112 ◽

2021 ◽

Author(s):

Laura Massano ◽

Giorgia Fosser ◽

Marco Gaetani

Keyword(s):

Climate Change ◽

Horizontal Resolution ◽

Wine Industry ◽

Added Value ◽

Extreme Weather Events ◽

Wine Production ◽

Bioclimatic Indices ◽

Impact Of Climate Change ◽

Impact Studies ◽

The Impact

In Italy the wine industry is an economic asset representing the 8% of the annual turnover of the Food & Beverage sector, according to Unicredit Industry Book 2019. Viticulture is strongly influenced by weather and climate, and winegrowers in Europe have already experienced the impact of climate change in terms of more frequent drought periods, warmer and longer growing seasons and an increased frequency of weather extremes. These changes impact on both yield production and wine quality.Our study aims to understand the impact of climate change on wine production, to estimate the risks associated with climate factors and to suggest appropriate adaptation measurement. The weather variables that most influence grape growth are: temperature, precipitation and evapotranspiration. Starting for these variables we calculate a range of bioclimatic indices, selected following the International Organisation of Vine and Wine Guidelines (OIV), and correlate these with wine productivity data. According to the values of different indices it is possible to determine the more suitable areas for wine production, where we expect higher productivity, although the climate is not the only factor influencing yield.Using the convection-permitting models (CPMs &#8211; 2.2 horizontal resolution) we investigate how the bioclimatic indices changed in the last 20 years, and the impact of this change on grapes productivity. We look at possible climate trends and at the variation in the frequency distribution of extreme weather events. The CPMs are likely the best available option for this kind of impact studies since they allow a better representation of surface and orography field, explicitly resolve deep convection and show an improved representation of extremes events. In our study, we compare CPMs with regional climate models (RCMs &#8211; 12 km horizontal resolution) to evaluate the possible added value of high resolution models for impact studies. To compare models' output to observation the same analysis it carried out using E-OBS dataset.Through our impact study, we aim to provide a tool that winegrower and stakeholders involved in the wine business can use to make their activities more sustainable and more resilient to climate change.

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