气候变化领域集成服务门户(CCPortal): Radiocarbon dating peatland development: Key steps in reconstructing past climate in the central Appalachian Mountains

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DOI	10.1016/j.quascirev.2020.106387
	Radiocarbon dating peatland development: Key steps in reconstructing past climate in the central Appalachian Mountains
	Schaney M.L.; Kite J.S.; Schaney C.R.; Heckman K.; Coughenour C.
发表日期	2020
ISSN	0277-3791
卷号	241
英文摘要	Canaan Valley in West Virginia contains a greater area of peatlands than any other locality in the mid-Atlantic Highlands. Extensive fieldwork focused on peat stratigraphy, combined with high-resolution radiocarbon dating, was used to evaluate five peatlands within Canaan Valley National Wildlife Refuge (CVNWR). One hundred soil cores were profiled and described, 30 with laboratory analysis, including 52 radiocarbon dates. Calibrated basal peat dates from the five peatlands indicate the onset of peat genesis ranged from ∼18,600 to ∼15,200 cal yr BP. Basal peat dates on the two oldest cores are 1800 to 2200 years older than published dates on peat initiation in any other Appalachian Mountain peatlands. Peat accumulation rates varied from 0.02 mm/yr to 1.34 mm/yr, with a mean of 0.14 mm/yr. Results of age-depth profiles for six well-dated cores consistently exhibit: rapid accumulation during the late Pleistocene (Heinrich Stadial 1, Bølling-Allerød interstadial, and Younger Dryas cold stadial), lower accumulation rates in the early Holocene (Greenlandian Age), even lower accumulation rates during the mid-Holocene (Northgrippian Age), and the most rapid peat accumulation at the onset of the late Holocene (early Meghalayan Age). A paucity of shallow peat dating younger than 2000 BP may reflect a reduction in peat accumulation, or mixing of surface vegetation into near-surface soil horizons. Soil cores from CVNWR suggest a somewhat different peat development history than the process of terrestrialization previously proposed for other peatland ecosystems in the region. © 2020 Elsevier Ltd
英文关键词	Allegheny mountains; Appalachian mountains; Canaan valley; Histosols; Holocene; Mid-Holocene climatic optimum; Peatlands
语种	英语
scopus关键词	Soils; Stratigraphy; Wetlands; Appalachian mountains; Development history; Laboratory analysis; Peatland development; Peatland ecosystems; Radiocarbon dating; Surface vegetation; Terrestrialization; Peat; biostratigraphy; Holocene; paleoclimate; peat soil; peatland; Pleistocene; radiocarbon dating; reconstruction; soil horizon; vegetation dynamics; Younger Dryas; Appalachians; Atlantic Ocean; Canaan Valley National Wildlife Refuge; Mid-Atlantic Ridge; United States; West Virginia; West Virginia
来源期刊	Quaternary Science Reviews
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/151408
作者单位	Geography Department, University of Pittsburgh at Johnstown, Krebs Hall 108D, 450 Schoolhouse Road, Johnstown, PA 15904, United States; Department of Geology and Geography, West Virginia University, 330 Brooks Hall, P.O. Box 6300, Morgantown, WV 26506, United States; USDA Forest Service, Climate, Fire & Carbon Cycle Sciences, Northern Research Center, 410 MacInnes Drive, Houghton, MI 49931, United States; Department of Energy and Earth Resources, University of Pittsburgh at Johnstown, Krebs Hall 227B, 450 Schoolhouse Road, Johnstown, PA 15904, United States; Department of Geography, Indiana University of Pennsylvania, 981 Grant Street, Indiana, PA 15705, United States
推荐引用方式 GB/T 7714	Schaney M.L.,Kite J.S.,Schaney C.R.,et al. Radiocarbon dating peatland development: Key steps in reconstructing past climate in the central Appalachian Mountains[J],2020,241.
APA	Schaney M.L.,Kite J.S.,Schaney C.R.,Heckman K.,&Coughenour C..(2020).Radiocarbon dating peatland development: Key steps in reconstructing past climate in the central Appalachian Mountains.Quaternary Science Reviews,241.
MLA	Schaney M.L.,et al."Radiocarbon dating peatland development: Key steps in reconstructing past climate in the central Appalachian Mountains".Quaternary Science Reviews 241(2020).