Reply to van Leeuwen et al.: Planning for agricultural adaptation to climate change and its consequences for conservation

Lee, Hannah; Roehrdanz, Patrick R.; Ikegami, Makihiko; Shepard, Anderson V.; Shaw, M. Rebecca; Tabor, Gary M.; Zhi, Lu; Marquet, Pablo A.; Hijmans, Robert J.

doi:10.1073/pnas.1308923110

Cited by 4 publications

(4 citation statements)

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“…Some authors have suggested that GDD heat accumulation should be capped at 19 °C—that is, temperatures above 19 °C do not contribute to the summed GDD of the ripening period (van Leeuwen et al, 2013). Here we have elected to use uncapped GDD summation as it has been judged more suitable for climate change analyses (Hall and Jones, 2010; Hannah et al, 2013b) and better reflects observed phenological shifts coincident with long-term increases in average temperatures (Webb et al, 2011).…”

Section: Approach and Methodsmentioning

confidence: 99%

Climate Change, California Wine, and Wildlife Habitat

Roehrdanz

Lee

2014

J Wine Econ

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Climate change may drive shifts in global agriculture that will affect remaining natural lands, with important consequences for the conservation of species and ecosystems. Wine production is an excellent model for examining this type of impact, because suitable climate is central to product quality and production is centered in Mediterranean climate regions that are all global biodiversity hotspots. Adaptation to climate change in existing vineyards may involve water use to ameliorate heat stress or drought, resulting in additional conservation issues. Global studies of wine, climate, and conservation have highlighted the need for more detailed regional analyses to better understand these complex multiple issues. Here we examine impacts of climate change on winegrape suitability in California and its possible implications for nature conservation and water use. Under two global climate models and two emissions scenarios, winegrape suitability in California is projected to decline overall and to move into undeveloped areas that provide important habitats for native species. Coastal and upslope areas retain and improve in suitability, respectively, while inland areas see the largest losses in suitability. Areas of declining suitability are regions in which heightened water use for vineyard adaptation may lead to declines in stream flow or conflicts with other water uses. Continued growth in global demand for wine and reduced production in areas of declining suitability will drive expansion into newly suitable areas, potentially impacting important species native to California. Existing vineyards in areas of declining suitability will likely need to adapt to remain viable. Advance planning for a changing climate and adaptation options that are not water intensive (e.g. vine orientation, trellising, or varietal switch) will help reduce potential water conservation issues in those areas. (JEL Classifications: Q15, Q54, Q57)

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Section: Approach and Methodsmentioning

confidence: 99%

Climate Change, California Wine, and Wildlife Habitat

Roehrdanz

Lee

2014

J Wine Econ

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“…Hannah et al [17] replied that climate change adaptation has started in vineyards but the way in which the wine industry develops in the future decades will affect wildlife. Dry farming may be an early response but planning and study are required to keep up with increasing temperatures.…”

Section: Introductionmentioning

confidence: 99%

“…Dry farming may be an early response but planning and study are required to keep up with increasing temperatures. When planning agricultural climate change solutions, ecosystem services, wildlife, and water ought to be included [17].…”

Section: Introductionmentioning

confidence: 99%

“…Authors also suggest the increase in the frequency of very high summer temperatures and the decrease in the danger of frost damage throughout the reproductive cycle [20]. Hannah et al [17] replied that climate change adaptation has started in vineyards but the way in which the wine industry develops in the future decades will affect wildlife. Dry farming may be an early response but planning and study are required to keep up with increasing temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Delay in the Ripening of Wine Grapes: Effects of Specific Phytotechnical Methods on Harvest Parameters

Jahnke,

Szőke,

Steckl

et al. 2023

Agronomy

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Due to climate change, the sugar content of grapes in Hungary has increased to such an extent that the high alcohol content alone can make wines disharmonious. In most vintages, this phenomenon is only a problem for early-ripening varieties. In order to prevent and treat this difficulty, we have carried out experiments in grape canopy management for four years with the aim of delaying ripening and thus reducing the sugar content of the grapes. The experiments were set up on an early (Pinot noir) and a late (Welshriesling) variety; two treatments (leaf removal—LR and short topping—ST) were applied and compared to untreated controls in the years 2019–2022. Our results showed that grape juice sugar yield was significantly reduced in all four years and for both cultivars, while the other measured parameters (yield, acidity, pH, and Botrytis infection) were only lightly affected.

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The history, science, and art of wine and the case for health benefits: perspectives of an oenophilic cardiovascular pathologist

Buja

2022

Cardiovascular Pathology

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Reply to van Leeuwen et al.: Planning for agricultural adaptation to climate change and its consequences for conservation

Cited by 4 publications

References 5 publications

Climate Change, California Wine, and Wildlife Habitat

Climate Change, California Wine, and Wildlife Habitat

Delay in the Ripening of Wine Grapes: Effects of Specific Phytotechnical Methods on Harvest Parameters

The history, science, and art of wine and the case for health benefits: perspectives of an oenophilic cardiovascular pathologist

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