气候变化领域集成服务门户(CCPortal): Increasing contribution of peatlands to boreal evapotranspiration in a warming climate

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DOI	10.1038/s41558-020-0763-7
	Increasing contribution of peatlands to boreal evapotranspiration in a warming climate
	Helbig M.; Waddington J.M.; Alekseychik P.; Amiro B.D.; Aurela M.; Barr A.G.; Black T.A.; Blanken P.D.; Carey S.K.; Chen J.; Chi J.; Desai A.R.; Dunn A.; Euskirchen E.S.; Flanagan L.B.; Forbrich I.; Friborg T.; Grelle A.; Harder S.; Heliasz M.; Humphreys E.R.; Ikawa H.; Isabelle P.-E.; Iwata H.; Jassal R.; Korkiakoski M.; Kurbatova J.; Kutzbach L.; Lindroth A.; Löfvenius M.O.; Lohila A.; Mammarella I.; Marsh P.; Maximov T.; Melton J.R.; Moore P.A.; Nadeau D.F.; Nicholls E.M.; Nilsson M.B.; Ohta T.; Peichl M.; Petrone R.M.; Petrov R.; Prokushkin A.; Quinton W.L.; Reed D.E.; Roulet N.T.; Runkle B.R.K.; Sonnentag O.; Strachan I.B.; Taillardat P.; Tuittila E.-S.; Tuovinen J.-P.; Turner J.; Ueyama M.; Varlagin A.; Wilmking M.; Wofsy S.C.; Zyrianov V.
发表日期	2020
ISSN	1758-678X
起始页码	555
结束页码	560
卷号	10 期号:6
英文摘要	The response of evapotranspiration (ET) to warming is of critical importance to the water and carbon cycle of the boreal biome, a mosaic of land cover types dominated by forests and peatlands. The effect of warming-induced vapour pressure deficit (VPD) increases on boreal ET remains poorly understood because peatlands are not specifically represented as plant functional types in Earth system models. Here we show that peatland ET increases more than forest ET with increasing VPD using observations from 95 eddy covariance tower sites. At high VPD of more than 2 kPa, peatland ET exceeds forest ET by up to 30%. Future (2091–2100) mid-growing season peatland ET is estimated to exceed forest ET by over 20% in about one-third of the boreal biome for RCP4.5 and about two-thirds for RCP8.5. Peatland-specific ET responses to VPD should therefore be included in Earth system models to avoid biases in water and carbon cycle projections. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	biome; carbon cycle; climate change; climate modeling; evapotranspiration; forest ecosystem; growing season; peatland
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/171658
作者单位	School of Geography and Earth Sciences, McMaster University, Hamilton, ON, Canada; Department of Physics, University of Helsinki, Helsinki, Finland; Natural Resources Institute Finland (LUKE), Helsinki, Finland; Department of Soil Science, University of Manitoba, Winnipeg, MB, Canada; Finnish Meteorological Institute, Helsinki, Finland; Climate Research Division, Environment and Climate Change Canada, Saskatoon, SK, Canada; Global Institute for Water Security, University of Saskatchewan, Saskatoon, SK, Canada; Faculty of Land and Food Systems, The University of British Columbia, Vancouver, BC, Canada; Department of Geography, University of Colorado, Boulder, CO, United States; Department of Geography, Environment, and Spatial Sciences, Michigan State University, East Lansing, MI, United States; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umea, Sweden; Department of Atmospheric and Oceanic Sciences, University of Wisconsin–Madison, Madison, WI, United States; D...
推荐引用方式 GB/T 7714	Helbig M.,Waddington J.M.,Alekseychik P.,et al. Increasing contribution of peatlands to boreal evapotranspiration in a warming climate[J],2020,10(6).
APA	Helbig M..,Waddington J.M..,Alekseychik P..,Amiro B.D..,Aurela M..,...&Zyrianov V..(2020).Increasing contribution of peatlands to boreal evapotranspiration in a warming climate.Nature Climate Change,10(6).
MLA	Helbig M.,et al."Increasing contribution of peatlands to boreal evapotranspiration in a warming climate".Nature Climate Change 10.6(2020).