globalchange  > 气候减缓与适应
DOI: 10.1016/j.quascirev.2018.04.023
Scopus记录号: 2-s2.0-85046618937
论文题名:
Differential response of vegetation in Hulun Lake region at the northern margin of Asian summer monsoon to extreme cold events of the last deglaciation
作者: Zhang S.; Xiao J.; Xu Q.; Wen R.; Fan J.; Huang Y.; Yamagata H.
刊名: Quaternary Science Reviews
ISSN: 2773791
出版年: 2018
卷: 190
起始页码: 57
结束页码: 65
语种: 英语
英文关键词: East Asia ; Extreme cold event ; Hulun lake ; Last deglaciation ; Pollen ; Regional vegetation
Scopus关键词: Atmospheric thermodynamics ; Catchments ; Ecology ; Global warming ; Lakes ; Landforms ; Runoff ; Sea level ; Vegetation ; East Asia ; Extreme cold event ; Hulun lakes ; Last deglaciation ; Pollen ; Forestry ; catchment ; coniferous forest ; deciduous forest ; extreme event ; global warming ; Heinrich event ; last deglaciation ; monsoon ; mountain environment ; Northern Hemisphere ; paleoenvironment ; pollen ; terrestrial ecosystem ; vegetation cover ; vegetation structure ; Younger Dryas ; China ; Far East ; Hulun Lake ; Nei Monggol
英文摘要: The response of vegetation to extreme cold events during the last deglaciation is important for assessing the impact of possible extreme climatic events on terrestrial ecosystems under future global warming scenarios. Here, we present a detailed record of the development of regional vegetation in the northern margin of Asian summer monsoon during the last deglaciation (16,500–11,000 cal yr BP) based on a radiocarbon-dated high-resolution pollen record from Hulun Lake, northeast China. The results show that the regional vegetation changed from subalpine meadow-desert steppe to mixed coniferous and deciduous forest-typical steppe during the last deglaciation. However, its responses to the Heinrich event 1 (H1) and the Younger Dryas event (YD) were significantly different: during the H1 event, scattered sparse forest was present in the surrounding mountains, while within the lake catchment the vegetation cover was poor and was dominated by desert steppe. In contrast, during the YD event, deciduous forest developed and the proportion of coniferous forest increased in the mountains, the lake catchment was occupied by typical steppe. We suggest that changes in Northern Hemisphere summer insolation and land surface conditions (ice sheets and sea level) caused temperature and monsoonal precipitation variations that contributed to the contrasting vegetation response during the two cold events. We conclude that under future global warming scenarios, extreme climatic events may cause a deterioration of the ecological environment of the Hulun Lake region, resulting in increased coniferous forest and decreased total forest cover in the surrounding mountains, and a reduction in typical steppe in the lake catchment. © 2018 Elsevier Ltd
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/112181
Appears in Collections:气候减缓与适应

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作者单位: Key Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China; College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing, 100049, China; CAS Center for Excellence in Life and Paleoenvironment, Beijing, 100044, China; College of Resources and Environment, Hebei Key Laboratory of Environmental Change and Ecological Construction, Hebei Normal University, Shijiazhuang, 050024, China; Paleo Labo Co., Ltd., Saitama, 335-0016, Japan

Recommended Citation:
Zhang S.,Xiao J.,Xu Q.,et al. Differential response of vegetation in Hulun Lake region at the northern margin of Asian summer monsoon to extreme cold events of the last deglaciation[J]. Quaternary Science Reviews,2018-01-01,190
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