气候变化领域集成服务门户(CCPortal): Temperature and rainfall impacts on robusta coffee bean characteristics

CCPortal

DOI	10.1016/j.crm.2021.100281
	Temperature and rainfall impacts on robusta coffee bean characteristics
	Kath J.; Mittahalli Byrareddy V.; Mushtaq S.; Craparo A.; Porcel M.
发表日期	2021
ISSN	2212-0963
起始页码	3581
结束页码	3602
卷号	32
英文摘要	Robusta coffee is the primary source of income for millions of smallholder farmers throughout the world's tropics. The price smallholder farmers can get for their coffee is strongly influenced by bean characteristics (i.e. beans are of a sufficient size and have minimal defects). Climate is a key determinant of successful coffee production, but scant research has been undertaken to test and quantify climate impacts on robusta coffee bean physical characteristics. Here we investigate how climate relates to the risk of poor coffee bean characteristics in one of South East Asia's key coffee producing areas, the central highlands of Vietnam. We use 5 years (2012–2016) of coffee bean characteristic data from 60 farms. Hierarchical modelling was used to investigate how rainfall and temperature related to two indicators of coffee bean characteristics (1) the probability of below average coffee bean size and (2) the probability of above average coffee bean defects. Low rainfall (<1600 mm) during the late growing season (July-September) greatly increased the risk (>80% probability) of below average coffee bean size. Conversely, high rainfall (>750 mm) and high mean minimum temperature (>22 °C) during harvest (October-December) increased the risk (>75% probability) of above average coffee bean defects. Various coffee bean characteristic subcomponents (e.g. insect damage and mouldy beans) and different bean sizes were also examined and were affected by a range of rainfall and temperature predictors across the flowering, growing and harvest seasons. With this information targeted risk-management strategies (e.g. targeted irrigation during hot and dry growing seasons, adjusting harvest timing and employing drying techniques during wet and cold harvest periods) could be developed to minimise the effect of climate conditions that increase the risk of coffee bean defects. Successfully managing the impacts identified here, could decrease coffee bean defects and in turn increase the incomes of smallholder coffee farmers. © 2021 The Author(s)
英文关键词	Drought; Extreme rainfall; Harvest; Heat; Insect pests
来源期刊	Climate Risk Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/183135
作者单位	Centre for Applied Climate Sciences, University of Southern Queensland, Toowoomba, Queensland 4350, Australia; International Center for Tropical Agriculture (CIAT), Hanoi, Viet Nam; Corporación Colombiana de Investigación Agropecuaria (AGROSAVIA), C.I. La Libertad, Vía Puerto López Km 17, Meta, Colombia
推荐引用方式 GB/T 7714	Kath J.,Mittahalli Byrareddy V.,Mushtaq S.,et al. Temperature and rainfall impacts on robusta coffee bean characteristics[J],2021,32.
APA	Kath J.,Mittahalli Byrareddy V.,Mushtaq S.,Craparo A.,&Porcel M..(2021).Temperature and rainfall impacts on robusta coffee bean characteristics.Climate Risk Management,32.
MLA	Kath J.,et al."Temperature and rainfall impacts on robusta coffee bean characteristics".Climate Risk Management 32(2021).