气候变化领域集成服务门户(CCPortal): Vegetation responses to Quaternary volcanic and hydrothermal disturbances in the Northern Rocky Mountains and Greater Yellowstone Ecosystem (USA)

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DOI	10.1016/j.palaeo.2020.109859
	Vegetation responses to Quaternary volcanic and hydrothermal disturbances in the Northern Rocky Mountains and Greater Yellowstone Ecosystem (USA)
	Schiller C.M.; Whitlock C.; Alt M.; Morgan L.A.
发表日期	2020
ISSN	0031-0182
卷号	559
英文摘要	Volcanic and hydrothermal processes produce disturbances by diverse mechanisms and ecological responses are varied. New and published pollen records from the Northern Rocky Mountains and Greater Yellowstone Ecosystem document the response of vegetation to three different types of volcanic and hydrothermal disturbances: (1) Pleistocene rhyolite lava flows in the central Greater Yellowstone Ecosystem created infertile landscapes that have shaped vegetation since rhyolite emplacement. Nutrient-poor, well-drained soils that developed on these flows supported low-diversity grassland during late-glacial time and Pinus contorta forests in interglacial periods. (2) Ash layers from eruptions of Pacific Northwest stratovolcanoes are commonly preserved in lake-sediment records in the Northern Rocky Mountains, and associated pollen records show enhancement of steppe vegetation for years to decades. (3) Local hydrothermal explosions have resulted in vegetation changes in hydrothermal areas that indicate tree mortality following deposition of explosion debris, followed by recovery in years. Thus, the type and duration of the vegetation response to volcanic and hydrothermal disturbances are highly contextual and governed by the antecedent plant communities and the magnitude and mechanism of the volcanic or hydrothermal disturbance. Vegetation resilience varied between disturbances, ranging from enduring ecosystem parameter changes to short-lived state changes in resilient plant communities. © 2020 Elsevier B.V.
英文关键词	Hydrothermal explosions; Mazama; Pollen; Resilience; Rhyolite
语种	英语
scopus关键词	coniferous forest; coniferous tree; ecosystem response; hydrothermal alteration; interglacial; mortality; plant community; Pleistocene; pollen; Quaternary; vegetation cover; Greater Yellowstone Ecosystem; Pacific Northwest; Rocky Mountains; United States; Mazama; Pinus contorta
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150331
作者单位	Department of Earth Sciences, Montana State University, Bozeman, MT 59717, United States; Montana Institute on Ecosystems, Montana State University, Bozeman, MT 59717, United States; U.S. Geological Survey, Denver Federal Center, P.O. Box 25046, M.S. 973, Denver, CO 80225, United States
推荐引用方式 GB/T 7714	Schiller C.M.,Whitlock C.,Alt M.,et al. Vegetation responses to Quaternary volcanic and hydrothermal disturbances in the Northern Rocky Mountains and Greater Yellowstone Ecosystem (USA)[J],2020,559.
APA	Schiller C.M.,Whitlock C.,Alt M.,&Morgan L.A..(2020).Vegetation responses to Quaternary volcanic and hydrothermal disturbances in the Northern Rocky Mountains and Greater Yellowstone Ecosystem (USA).Palaeogeography, Palaeoclimatology, Palaeoecology,559.
MLA	Schiller C.M.,et al."Vegetation responses to Quaternary volcanic and hydrothermal disturbances in the Northern Rocky Mountains and Greater Yellowstone Ecosystem (USA)".Palaeogeography, Palaeoclimatology, Palaeoecology 559(2020).