气候变化领域集成服务门户(CCPortal): Revisiting climate change effects on winter chill in mountain oases of northern Oman

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DOI	10.1007/s10584-020-02862-8
	Revisiting climate change effects on winter chill in mountain oases of northern Oman
	Buerkert A.; Fernandez E.; Tietjen B.; Luedeling E.
发表日期	2020
ISSN	0165-0009
起始页码	1399
结束页码	1417
卷号	162 期号:3
英文摘要	For centuries, traditional high-altitude oases in Oman have depended on the cultivation of deciduous fruit trees. This study explores the effects of climate change on winter chill (estimated as Chilling Hours—CH and Chill Portions—CP), a prerequisite to overcoming dormancy and initiating flowering, in three Omani oases. The results are compared with findings from an earlier study which reported a decrease in the numbers of CH in high-elevation oases by an average of 1.2–9.5 CH year−1 between 1983 and 2008. Location-specific weather data were obtained by merging 15 years of in situ recordings with 28 years of observations from an official weather station near the top of the investigated watershed. Between 1991 and 2018, scenarios of the past few decades show chill reductions by 75, 35 and 18% when estimated in CP at the oases of Masayrat ar Ruwajah (1030 m a.s.l.), Qasha’ (1640 m a.s.l.), and Al ‘Ayn (1900 m a.s.l.), respectively. Over the course of the twenty-first century, the lowest-elevation oasis at Masayrat ar Ruwajah is projected to lose virtually all winter chill, whereas, despite significant chill losses, conditions are expected to remain viable for some of the currently grown species in the higher-elevation oases. These projected changes will compromise the cultivation of temperate fruit trees in the near future, affecting the sustainability of Omani oases. Our methods support results from earlier work performed at these locations and provide an updated procedure for assessing climate change effects on temperature-dependent systems. © 2020, The Author(s).
英文关键词	Arabia; Arid environments; Chill requirements; Fruit production; Global warming; Warm winters
语种	英语
scopus关键词	Forestry; Fruits; Orchards; Fruit trees; High elevation; Temperature dependent; Weather data; Weather stations; Winter chill; Climate change; climate change; climate effect; cold tolerance; cultivation; in situ measurement; mountain environment; oasis; sustainability; weather station; winter; Oman
来源期刊	Climatic Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/146986
作者单位	Organic Plant Production and Agroecosystems Research in the Tropics and Subtropics (OPATS), University of Kassel, Steinstrasse 19, Witzenhausen, D-37213, Germany; Department of Horticultural Sciences, Institute of Crop Science and Resource Conservation (INRES), University of Bonn, Auf dem Hügel 6, Bonn, D-53121, Germany
推荐引用方式 GB/T 7714	Buerkert A.,Fernandez E.,Tietjen B.,et al. Revisiting climate change effects on winter chill in mountain oases of northern Oman[J],2020,162(3).
APA	Buerkert A.,Fernandez E.,Tietjen B.,&Luedeling E..(2020).Revisiting climate change effects on winter chill in mountain oases of northern Oman.Climatic Change,162(3).
MLA	Buerkert A.,et al."Revisiting climate change effects on winter chill in mountain oases of northern Oman".Climatic Change 162.3(2020).