Thu, Nov 15, 2012 - Page 11 News List

Climate change threatens sweet smell of morning coffee
氣候變遷 咖啡恐難飄香

Coffee beans are heated in a roaster at a coffee shop in Taipei’s Neihu District on Tuesday.
這張週二攝於台北內湖一間咖啡店的照片,是烘培中的咖啡豆。

Photo: Lin Ya-ti, Taipei Times
照片:台北時報記者林亞蒂

Rising temperatures due to climate change could mean wild Arabica coffee will be extinct in 70 years, posing a risk to the genetic sustainability of one of the world’s basic commodities, scientists said.

Although commercial coffee growers would still be able to cultivate crops in plantations designed with the right conditions, experts say the loss of wild Arabica, which has greater genetic diversity, would make it harder for plantations to survive in the long-term and beat threats like pests and disease.

A study by researchers at Britain’s Royal Botanic Gardens at Kew in collaboration with scientists in Ethiopia found that 38 to 99.7 percent of the areas suitable for wild Arabica will disappear by 2080 if predictions of rising temperatures pan out.

Because coffee is a highly climate-dependent crop, the increase of a few degrees of average temperature in growing regions can put at risk the future of Arabica coffee and the livelihood of millions of people who grow and produce it.

“The extinction of Arabica coffee is a startling and worrying prospect,” said Aaron Davis, head of coffee research at the Royal Botanic Gardens, who led the study.

In a telephone interview, he said the findings made it even more important for organizations such as the World Coffee Research collaboration to continue work to improve the genetic strength of cultivated Arabica by preserving wild types.

Researchers used computer modeling to analyze the influence of rising temperatures on the geographical distribution of wild Arabica coffee.

The results, published in a Public Library of Science (PLOS) journal, showed a “profoundly negative influence” on the number and extent of wild Arabica populations, the researchers said.

Some Notes
重點整理

● Study suggests many wild growing areas will go by 2080.

● Arabica accounts for 60 percent of global coffee production.

● Wild Arabica vital for genetic diversity, sustainability.

● 研究顯示許多種植野生阿拉比卡咖啡的區域,將在二○八○年之前消失。

● 阿拉比卡咖啡占全球咖啡生產的百分之六十。

● 野生阿拉比卡咖啡對基因多樣性與永續性,扮演不可或缺的角色。


(Reuters)

科學家表示,氣候變遷導致的氣溫上升,意味野生阿拉比卡咖啡豆可能在七十年內絕跡,也可能威脅咖啡此一全球基本商品的基因永續性。

雖然商業咖啡種植者仍可在專為咖啡種植打造的農場環境培植該作物,但專家表示,野生阿拉比卡咖啡的流失,將更不利開闢能種植長期生存的咖啡農地,亦不易抵抗像是病蟲等侵害,因為野生阿拉比卡咖啡具備更廣泛的基因多樣性。

一份由英國皇家植物園之裘園研究員與衣索比亞科學家合作的研究發現,若溫度如預期上升,有百分之三十八至百分之九十九點七適合種植野生阿拉比卡咖啡豆的地區,將於二○八○年之前匿跡。

由於咖啡是相當容易受到氣候影響的作物,種植區域的平均溫度只要增加幾度,就可以威脅到阿拉比卡咖啡豆的未來,並不利種植及生產線上數百萬人的生計。

主導這項研究的皇家植物園咖啡研究主任艾倫‧戴維斯說:「阿拉比可咖啡可能絕跡的預測,令人吃驚且憂心。」戴維斯在接受電話訪問中表示,這些發現讓像是「世界咖啡研究」等機構,更加緊腳步藉由保存野生物種的方法,繼續改善培植阿拉比卡咖啡的基因播種能力。

研究員用電腦模擬,分析氣溫上升對於野生阿拉比卡咖啡在地理分佈上的影響。

研究員表示,這項刊登在《公共科學圖書館》(PLOS)一份期刊的結果顯示,這將對野生阿拉比卡的所有品種的數量以及分佈地區的幅員廣狹,造成「顯著負面的影響」。

(路透/翻譯:林亞蒂)

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