气候变化领域集成服务门户(CCPortal): Finding the sweet spot: Shifting optimal climate for maple syrup production in North America

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DOI	10.1016/j.foreco.2019.05.045
	Finding the sweet spot: Shifting optimal climate for maple syrup production in North America
	Rapp J.M.; Lutz D.A.; Huish R.D.; Dufour B.; Ahmed S.; Morelli T.L.; Stinson K.A.
发表日期	2019
ISSN	0378-1127
起始页码	187
结束页码	197
卷号	448
英文摘要	Climate change is affecting the benefits society derives from forests. One such forest ecosystem service is maple syrup, which is primarily derived from Acer saccharum (sugar maple), currently an abundant and widespread tree species in eastern North America. Two climate sensitive components of sap affect syrup production: sugar content and sap flow. The sugar in maple sap derives from carbohydrate stores influenced by prior year growing season conditions. Sap flow is tied to freeze/thaw cycles during early spring. Predicting climate effects on syrup production thus requires integrating observations across scales and biological processes. We observed sap at 6 sugar maple stands spanning sugar maple's latitudinal range over 2–6 years to predict the role of climate variation on sugar content and sap flow. We found that the timing of sap collection advanced by 4.3 days for every 1 °C increase in March mean temperature, sap volume peaked at a January-May mean temperature of 1 °C, and sap sugar content declined by 0.1 °Brix for every 1 °C increase in previous May-October mean temperature. Using these empirical relationships, we projected that the sap collection season midpoint will be 1 month earlier and sap sugar content will decline by 0.7 °Brix across sugar maple's range by the year 2100 in an RCP 8.5 climate change scenario. The region of maximum sap flow is expected to shift northward by 400 km, from near the 43rd parallel to the 48th parallel by 2100. Our findings suggest climate change will have profound effects on syrup yield across most of sugar maple's range; drastic shifts in the timing of the tapping season accompanied by flat to moderate increases in syrup yield per tap in Canada contrast with declines in syrup yield and higher frequencies of poor syrup production years across most of the U.S. range. © 2019 The Authors
英文关键词	Acer saccharum; Climate change; Forest ecosystem service; Maple syrup; Predictive model; Yield
语种	英语
scopus关键词	Climate models; Ecosystems; Forestry; Acer saccharum; Forest ecosystem; Maple syrup; Predictive modeling; Yield; Climate change; biochemical composition; biochemistry; climate change; ecosystem service; evergreen forest; forest ecosystem; forestry production; numerical model; sap flow; yield response; Acer Saccharum; Ecosystems; Forestry; Production; Sap; Yield; Canada; Acer; Acer saccharum
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155887
作者单位	Department of Environmental Conservation, University of Massachusetts Amherst, 160 Holdsworth Way, Amherst, MA 01003, United States; Harvard Forest, Harvard University, 324 N. Main St., Petersham, MA 01366, United States; Environmental Studies Program, Dartmouth College, 6182 Steele Hall, Hanover, NH 03755, United States; Department of Natural Sciences, University of Virginia's College at Wise, 1 College Avenue, Wise, VA 24293, United States; Université du Québec à Chicoutimi, Département des Sciences Fondamentales, 555 Boul. de l'Université, Chicoutimi (Québec), G7H 2B1, Canada; Department of Health and Human Development, Montana State University, Bozeman, MT 59717, United States; Northeast Climate Adaptation Science Center, U.S. Geological Survey, Amherst, MA 01003, United States
推荐引用方式 GB/T 7714	Rapp J.M.,Lutz D.A.,Huish R.D.,et al. Finding the sweet spot: Shifting optimal climate for maple syrup production in North America[J],2019,448.
APA	Rapp J.M..,Lutz D.A..,Huish R.D..,Dufour B..,Ahmed S..,...&Stinson K.A..(2019).Finding the sweet spot: Shifting optimal climate for maple syrup production in North America.Forest Ecology and Management,448.
MLA	Rapp J.M.,et al."Finding the sweet spot: Shifting optimal climate for maple syrup production in North America".Forest Ecology and Management 448(2019).