气候变化领域集成服务门户(CCPortal): Climate risks to Brazilian coffee production

CCPortal

DOI	10.1088/1748-9326/aba471
	Climate risks to Brazilian coffee production
	Koh I.; Garrett R.; Janetos A.; Mueller N.D.
发表日期	2020
ISSN	17489318
卷号	15 期号:10
英文摘要	Brazil is the world’s leading coffee exporter, contributing billions of dollars to the global food economy. Yet, a majority of Brazilian coffee farms are operated by ‘smallholders’, producers with relatively small properties and primarily reliant on family labor. While previous work indicates that climate change will decrease the area suitable for coffee production in Brazil, no study has assessed the impacts of climate change on coffee yields or the relative exposure and vulnerability of coffee producing regions to changes in climate hazards (climate-associated losses in yield). To address these knowledge gaps, we assess the sensitivity of coffee yields to temperature and precipitation variation from 1974 to 2017 to map coffee climate hazards. Next, we identify which coffee producing regions in Brazil have the highest exposure to climate hazards due to high dependence of coffee production as a proportion of agricultural area. Finally, we generate a Vulnerability Index to identify which regions are theoretically least able to adapt to climate hazards. Our study finds that since 1974, temperatures in Brazilian coffee growing municipalities have been increasing by ~0.25 ◦C per decade and annual precipitation has been decreasing during the blooming and ripening periods. This historical climate change has already resulted in reductions in coffee yield by more than 20% in the Southeast of Brazil. Minas Gerais, the largest coffee producing state in Brazil, has among the highest climate hazard and overall climate risk, exacerbated by ongoing coffee expansion. Additionally, many municipalities with the lowest adaptive capacity, including the country’s mountainous regions, also have high climate exposure and hazards. Negative climate hazard and exposure impacts for coffee producing regions could be potentially offset by targeting climate adaptation support to these high-risk regions, including research, extension, and credit subsidies for improved coffee varieties, irrigation, and agroforestry and diversifying agricultural production. © 2020 The Author(s). Published by IOP Publishing Ltd
英文关键词	Agriculture; Cerrado; Climate change; Coffee; Latin America; Smallholder; Vulnerability
语种	英语
scopus关键词	Agricultural robots; Agriculture; Hazards; Sensitivity analysis; Adaptive capacity; Agricultural areas; Agricultural productions; Annual precipitation; Brazilian coffees; Mountainous regions; Precipitation variation; Vulnerability index; Climate change; agroforestry; climate change; coffee; crop production; environmental hazard; environmental risk; extinction risk; precipitation (climatology); risk assessment; smallholder; spatiotemporal analysis; Brazil; Minas Gerais
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153695
作者单位	Department of Earth and Environment, Boston University, Boston, 02215, United States; Environmental Policy Lab, Department of Humanities, Social and Political Science, Department of Environmental Systems Science, ETH Zurich, Sonneggstrasse 33, Zurich, 8092, Switzerland; Pardee Center for the Study of the Longer Range Future, Boston University, Boston, 02215, United States; Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, 80523, United States; Department of Soil and Crop Sciences, Colorado State University, Fort Collins, 80526, United States
推荐引用方式 GB/T 7714	Koh I.,Garrett R.,Janetos A.,et al. Climate risks to Brazilian coffee production[J],2020,15(10).
APA	Koh I.,Garrett R.,Janetos A.,&Mueller N.D..(2020).Climate risks to Brazilian coffee production.Environmental Research Letters,15(10).
MLA	Koh I.,et al."Climate risks to Brazilian coffee production".Environmental Research Letters 15.10(2020).