DOI: 10.2166/wcc.2013.035
论文题名: A methodology for quantifying global consumptive water use of coffee for sustainable production under conditions of climate change
作者: Eriyagama N. ; Chemin Y. ; Alankara R.
刊名: Journal of Water and Climate Change
ISSN: 20402244
出版年: 2014
卷: 5, 期: 2 起始页码: 128
结束页码: 150
语种: 英语
英文关键词: Climate change
; Coffee
; Coffee yield
; Consumptive water use
; Irrigation
; Water stress
英文摘要: Coffee is the second most traded commodity in the world after oil. A sustainable coffee industry is crucial to maintaining global agriculture, trade, human and environmental well-being, and livelihoods. With increasing water scarcity and a changing climate, understanding and quantifying the risks associated with water, a primary input in coffee production, is vital. This methodological paper examines the means of quantifying: (a) 'current' consumptive water use (CWU) of green coffee (coffee beans at harvest time) globally; (b) coffee 'hot spots' and 'bright spots' with respect to levels of CWU, yields and water stress; and (c) possible impacts of climate change on the CWU of coffee. The methodology employs satellite-derived monthly evapotranspiration data and climate projections from two global circulation models for three future scenarios. Initial estimates suggest that currently (on average) 18.9 m3/kg of water is consumed in producing one unit of green coffee. The same estimate for irrigated coffee is 8.6 m3/kg, while that for rain fed coffee is 19.6 m3/kg. Climate scenarios show that effective mean annual rainfall in many major coffee areas may decrease by the 2050s. The generic methodology presented here may be applied to other crops, too, if crop data are available. © IWA Publishing 2014. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/67714
Appears in Collections: 气候减缓与适应
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作者单位: International Water Management Institute (IWMI), PO Box 2075, Colombo, Sri Lanka
Recommended Citation:
Eriyagama N.,Chemin Y.,Alankara R.. A methodology for quantifying global consumptive water use of coffee for sustainable production under conditions of climate change[J]. Journal of Water and Climate Change,2014-01-01,5(2)