Research focused on 30 years of climate data in Yunnan, China's main coffee region, identified frost as the leading threat to Arabica coffee yields. Drought followed as a significant risk, while heat stress ranked third. The study noted that coffee yields diminish by nearly 19% for each 1°C drop below freezing during maturation. Chill stress events were predominant in affecting yields across 66% of studied counties, with drought incidence increasing during the flowering period, suggesting a complex relationship between climate change and coffee production.
The study identified frost as the most damaging climate threat to coffee yields, followed by drought, with heat stress ranking third among climate stressors.
Coffee yield decreased nearly 19% per 1°C below freezing during maturation, with chill stress events reducing yields in 66% of counties studied.
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