NDLI: Pollen-inferred vegetation and environmental changes since 16.7 ka BP at Balikun Lake, Xinjiang

Content Provider	Springer Nature Link
Author	Tao, ShiChen An, ChenBang Chen, FaHu Tang, LingYu Wang, ZongLi Lü, YanBin Li, ZhiFei Zheng, TongMing Zhao, JiaJu
Copyright Year	2010
Abstract	A high-resolution fossil pollen record from the sedimentary cores of Balikun Lake, northwestern China, combined with modern surface pollen data, is used to reconstruct the history of vegetation and climatic change since 16.7 cal. ka BP. Fossil pollen assemblages and lithology indicate that the study area was dominated by desert. The desert had extremely arid climate and lower effective moisture during 16.7–7.9 cal. ka BP, especially from 16.7 to 8.9 cal. ka BP when the lake maybe dried up. During 8.9–7.9 cal. ka BP, the environment gradually recovered in this area. It was then followed by the optimum period from 7.9 to 4.3 cal. Ka BP, when the effective moisture obviously increased. It was characterized by the typical desert-steppe/steppe vegetation and was accompanied with several patch-birch woodlands around the lake. After that, a short but extremely arid climatic event occurred during 4.3−3.8 cal. ka BP, and the vegetation quickly changed from desert-steppe/steppe to desert. It was a relatively optimum period from 3.8 to 0.53 cal. ka BP showing typical desert-steppe/meadow-steppe landscape. Since 0.53 cal. ka BP, the climate has shown signs of deteriorating again. Furthermore, regional comparison shows that the characteristics of climatic and environmental evolution in this area were clearly different from East Asia monsoonal area during the last 16.7 cal. ka BP. It was characterized by the arid climate during the late-glacial and early Holocene, and relatively wet during the mid-late Holocene.
Starting Page	2449
Ending Page	2457
Page Count	9
File Format	PDF
ISSN	10016538
Journal	Chinese Science Bulletin
Volume Number	55
Issue Number	22
e-ISSN	18619541
Language	English
Publisher	SP Science China Press
Publisher Date	2010-08-11
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	Xinjiang Balikun Lake Holocene pollen vegetation climate Engineering Earth Sciences Chemistry/Food Science Physics Life Sciences Science
Content Type	Text
Resource Type	Article
Subject	Multidisciplinary

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