DOI: 10.1016/j.palaeo.2015.01.007
论文题名: Succession of arboreal taxa during the Late Glacial in south-eastern Poland: Climatic implications
作者: Kołaczek P. ; Gałka M. ; Karpińska-Kołaczek M.
刊名: Palaeogeography, Palaeoclimatology, Palaeoecology
ISSN: 0031-0182
出版年: 2015
卷: 421 起始页码: 1
结束页码: 14
语种: 英语
英文关键词: Central Europe
; Greenland Interstadial 1 (GI-1)
; Greenland Stadial 2 (GS-2)
; Pollen
; Pollen accumulation rate (PAR)
; Vegetation changes
英文摘要: This paper presents and discusses vegetation changes between ca. 14,910 and 11,620. cal. BP, which are recorded in the deposits of a small mire located in south-eastern Poland. Particular attention is paid to arboreal taxa. Changes in arboreal vegetation are reconstructed on the basis of pollen analysis, including pollen accumulation rate (PAR), and analysis of plant macrofossils, these being supported by radiocarbon chronology. Before the onset of the GI-1 warming (14,910. ±. 310-14,810. ±. 280. cal. BP) a mosaic of Pinus and Betula wood patches and/or isolated stands of trees, along with heliophilous Juniperus thickets were dispersed within patches of herb steppe and tundra communities. Thermal amelioration at the GS-2-GI-1 transition (ca. 14,810. ±. 280-14,510. ±. 200. cal. BP) led to the spread of Salix and to a lesser extent of tree birches (Betula), pines (Pinus) and Hippophaë rhamnoides. In the light of PAR values, from ca. 14,550. ±. 210. cal. BP there were open pine-birch woodlands there, which ca. 14,270. ±. 160. cal. BP turned into dense forests. Cold-oscillations such as GI-1d, GI-1c2 and GI-1b, dated in the profile at ca. 14,190. ±. 120-13,870. ±. 140, 13,740. ±. 120-13,490. ±. 80 and 13,120-12,870. ±. 60. cal. BP respectively, are visible as declines in the PAR of arboreal taxa. From ca. 13,770. ±. 120. cal. BP Picea abies, whose nearest glacial refugia were located in the Western Carpathians, probably reached the site surroundings (50°N). In the Younger Dryas (GS-1) climate deterioration caused a decline in birch population in the first phase, a slight retreat of forests and the simultaneous expansion of Artemisia-Poaceae steppe communities and Juniperus thickets. The PAR values reflect a division of the Younger Dryas into two distinct phases: an older phase, more severe for tree populations, probably due to longer and cooler winters, and a younger phase with milder winters which begun ca. 11,960. ±. 110. cal. BP. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/69025
Appears in Collections: 过去全球变化的重建
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作者单位: Department of Biogeography and Palaeoecology, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, Dziegielowa 27, Poznań, Poland; Laboratory of Wetland Ecology and Monitoring, Faculty of Geographical and Geological Sciences, Adam Mickiewicz University, Dziegielowa 27, Poznań, Poland; Department of Palaeobotany and Palaeoherbarium, Faculty of Biology and Earth Sciences, Jagiellonian University, Lubicz 46, Kraków, Poland
Recommended Citation:
Kołaczek P.,Gałka M.,Karpińska-Kołaczek M.. Succession of arboreal taxa during the Late Glacial in south-eastern Poland: Climatic implications[J]. Palaeogeography, Palaeoclimatology, Palaeoecology,2015-01-01,421