DOI: 10.1002/2016GL069380
论文题名: Transformations of landscape and peat-forming ecosystems in response to late Holocene climate change in the western Antarctic Peninsula
作者: Yu Z. ; Beilman D.W. ; Loisel J.
刊名: Geophysical Research Letters
ISSN: 0094-8944
EISSN: 1944-8675
出版年: 2016
卷: 43, 期: 13 起始页码: 7186
结束页码: 7195
语种: 英语
英文关键词: climate
; Deschampsia
; paleoclimate
; paleoecology
; peat
Scopus关键词: Carbon
; Ecology
; Ecosystems
; Ice
; Peat
; Antarctic Peninsula
; Climate
; Deschampsia
; Paleoclimates
; Paleoecology
; Regional climate
; Terrestrial ecosystems
; Western Antarctic Peninsula
; Climate change
; Bryophyta
; Deschampsia
; Deschampsia antarctica
; Polytrichum strictum
英文摘要: We used subfossil mosses and peats to document changes in regional climate, cryosphere, and terrestrial ecosystems in the western Antarctic Peninsula at ~65°S latitude. We find that most peat forming ecosystems have initiated since 2800 cal B.P., in response to warmer summers and increasing summer insolation. The period at 900–600 cal B.P. was coldest as indicated by ice advance, abundance of kill ages from ice-entombed mosses exposed recently from retreating glacial ice, and apparent gap in peatbank initiation. Furthermore, the discovery of a novel Antarctic hairgrass (Deschampsia antarctica) peatland at 2300–1200 cal B.P. from the mainland Antarctic Peninsula suggests a much warmer climate than the present. A warming and wetting climate in the 1980s caused very high carbon accumulation in a Polytrichum strictum moss peatbank. Our results document dramatic transformations of landscape and ecosystems in response to past warmer climate, providing a telltale sign for what may come in the future. ©2016. American Geophysical Union. All Rights Reserved. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84978378757&doi=10.1002%2f2016GL069380&partnerID=40&md5=11967d24bedb786d6c64ce0dedf5a0f9
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9907
Appears in Collections: 科学计划与规划 气候变化与战略
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作者单位: Department of Earth and Environmental Sciences, Lehigh University, Bethlehem, PA, United States
Recommended Citation:
Yu Z.,Beilman D.W.,Loisel J.. Transformations of landscape and peat-forming ecosystems in response to late Holocene climate change in the western Antarctic Peninsula[J]. Geophysical Research Letters,2016-01-01,43(13).