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Climate-induced decline in the quality and quantity of European hops calls for immediate adaptation measures


Martin Mozny

Miroslav Trnka

Vojtech Vlach

Vera Potopova

Martin Mozny

Miroslav Trnka

Vojtech Vlach

Vera Potopova

Mikhail A. Semenov
AbstractA recent rise in the global brewery sector has increased the demand for high-quality, late summer hops. The effects of ongoing and predicted climate change on the yield and aroma of hops, however, remain largely unknown. Here, we combine meteorological measurements and model projections to assess the climate sensitivity of the yield, alpha content and cone development of European hops between 1970 and 2050 CE, when temperature increases by 1.4 °C and precipitation decreases by 24 mm. Accounting for almost 90% of all hop-growing regions, our results from Germany, the Czech Republic and Slovenia show that hop ripening started approximately 20 days earlier, production declined by almost 0.2 t/ha/year, and the alpha content decreased by circa 0.6% when comparing data before and after 1994 CE. A predicted decline in hop yield and alpha content of 4–18% and 20–31% by 2050 CE, respectively, calls for immediate adaptation measures to stabilize an ever-growing global sector.
- University of Cambridge United Kingdom
- Czech Hydrometeorological Institute Czech Republic
- Czech Academy of Sciences Czech Republic
- Charles University Czech Republic
- Masaryk University Czech Republic
Science, Climate Change, Q, Temperature, crop production, Agriculture, adaptation measures, hops, climate change, decline in quality, Odorants, spatiotemporal analysis, Humulus, plant cone
Science, Climate Change, Q, Temperature, crop production, Agriculture, adaptation measures, hops, climate change, decline in quality, Odorants, spatiotemporal analysis, Humulus, plant cone
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).7 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Average impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10% 62 readers on Mendeleyvisibility views 1 download downloads 2 - 1views2downloads
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