气候变化领域集成服务门户(CCPortal): Agricultural risks from changing snowmelt

CCPortal

DOI	10.1038/s41558-020-0746-8
	Agricultural risks from changing snowmelt
	Qin Y.; Abatzoglou J.T.; Siebert S.; Huning L.S.; AghaKouchak A.; Mankin J.S.; Hong C.; Tong D.; Davis S.J.; Mueller N.D.
发表日期	2020
ISSN	1758-678X
起始页码	459
结束页码	465
卷号	10 期号:5
英文摘要	Snowpack stores cold-season precipitation to meet warm-season water demand. Climate change threatens to disturb this balance by altering the fraction of precipitation falling as snow and the timing of snowmelt, which may have profound effects on food production in basins where irrigated agriculture relies heavily on snowmelt runoff. Here, we analyse global patterns of snowmelt and agricultural water uses to identify regions and crops that are most dependent on snowmelt water resources. We find hotspots primarily in high-mountain Asia (the Tibetan Plateau), Central Asia, western Russia, western US and the southern Andes. Using projections of sub-annual runoff under warming scenarios, we identify the basins most at risk from changing snowmelt patterns, where up to 40% of irrigation demand must be met by new alternative water supplies under a 4 °C warming scenario. Our results highlight basins and crops where adaptation of water management and agricultural systems may be especially critical in a changing climate. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	agricultural development; climate change; food production; global warming; irrigation system; mountain environment; risk assessment; runoff; snowmelt; snowpack; water management; Andes; Central Asia; Qinghai-Xizang Plateau; Russian Federation; United States
语种	英语
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/171683
作者单位	Department of Geography, The Ohio State University, Columbus, OH, United States; Sustainability Institute, The Ohio State University, Columbus, OH, United States; Department of Earth System Science, University of California, Irvine, Irvine, CA, United States; Management of Complex Systems Department, University of California, Merced, Merced, CA, United States; Department of Geography, University of Idaho, Moscow, ID, United States; Department of Crop Sciences, University of Göttingen, Göttingen, Germany; Department of Civil and Environmental Engineering, University of California, Irvine, Irvine, CA, United States; Department of Geography, Dartmouth College, Hanover, NH, United States; Department of Earth Sciences, Dartmouth College, Hanover, NH, United States; Lamont–Doherty Earth Observatory of Columbia University, Palisades, New York, NY, United States; Department of Ecosystem Science and Sustainability, Colorado State University, Fort Collins, CO, United States; Department of Soil and Crop Sciences, Co...
推荐引用方式 GB/T 7714	Qin Y.,Abatzoglou J.T.,Siebert S.,et al. Agricultural risks from changing snowmelt[J],2020,10(5).
APA	Qin Y..,Abatzoglou J.T..,Siebert S..,Huning L.S..,AghaKouchak A..,...&Mueller N.D..(2020).Agricultural risks from changing snowmelt.Nature Climate Change,10(5).
MLA	Qin Y.,et al."Agricultural risks from changing snowmelt".Nature Climate Change 10.5(2020).