氣候?qū)W家Martin Mozny及同事發(fā)現(xiàn)了，薩茲啤酒已經(jīng)在近年來持續(xù)下降,。而多變的氣候是罪魁禍?zhǔn)住?/p>
Mozny的研究團(tuán)隊(duì)搜集關(guān)于天氣情況,，作物產(chǎn)量和啤酒花質(zhì)量的數(shù)據(jù)，研究1954年到2006年之間,，捷克共和國(guó)的氣候改變對(duì)薩茲啤酒花質(zhì)量的影響,。最好的薩茲啤酒花含有5%的α酸，它是一種能讓人產(chǎn)生微妙感覺的混合物,，味微苦,。
研究發(fā)現(xiàn),，自1954年以來，薩茲啤酒花中α酸含量每年以0.06%的速度在遞減,。在未來全球變暖條件下，啤酒花的產(chǎn)量和質(zhì)量都會(huì)有更大的跌幅,。研究結(jié)果發(fā)表在Agricultural and Forest Metaorology雜志上,。
"這不僅僅是捷克啤酒的遭遇，"歐盟作物專家Francesco Tubiello認(rèn)為,，"盛產(chǎn)啤酒的德國(guó)東部地區(qū)和捷克斯洛伐克中部也會(huì)面臨同樣的問題。"(生物谷Bioon.com)
生物谷推薦原文出處：
Agricultural and Forest Metaorology doi:10.1016/j.agrformet.2009.02.006
The impact of climate change on the yield and quality of Saaz hops in the Czech Republic
Martin Moznya,Radim Tolasza,Jiri Nekovara,Tim Sparksb,Mirek Trnkac,and Zdenek Zaludc
a Czech Hydrometeorological Institute, Na Sabatce 17, 14306 Praha 4 - Komorany, Czech Republic
b Centre for Ecology & Hydrology, Monks Wood, Abbots Ripton, Huntingdon, Cambridgeshire PE28 2LS, UK
c Institute of Agrosystems and Bioclimatology, Mendel University of Agriculture and Forestry Brno, Zemedelska 1, 61300 Brno, Czech Republic
Abstract
The impact of climate change on the production and quality of hops Humulus lupulus will depend on future weather conditions in the growing season. Our simulations suggest that hops will be particularly vulnerable to a change in climate. Even with the modest warming so far experienced yields have stagnated and quality declined. Recorded observations show an increase in air temperature which is associated with an earlier onset of hop phenological phases and a shortening of the vegetation period. Simulations using future climate predict a decline in both yields, of up to 7-10%, and α-acid content, of up to 13-32%, the latter a major determinant of quality. The concentration of hop cultivation in a comparatively small region in the Czech Republic makes it more vulnerable than if the crop were grown in more areas with different climates. Thus climate change may gradually lead to changes in the regionalization of hop production. Policy assistance may be necessary for the adaptation of the Czech hop growing industry to changed climatic conditions.
Keywords: Hops; Climate impacts; Yield; α-Acid
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