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Pollen-inferred vegetation and environmental changes since 16.7 ka BP at Balikun Lake, Xinjiang
Tao ShiChen1; An ChenBang1; Chen FaHu1; Tang LingYu (唐领余)2; Wang ZongLi1; Lue YanBin1; Li ZhiFei1; Zheng TongMing1; Zhao JiaJu1
2010-08-01
Source PublicationCHINESE SCIENCE BULLETIN
ISSN1001-6538
Volume55Issue:22Pages:2449-2457
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.

KeywordXinjiang Balikun Lake Holocene Pollen Vegetation Climate
DOI10.1007/s11434-010-3174-8
Language英语
WOS KeywordCentral Tibetan Plateau ; North-atlantic Climate ; Holocene Asian Monsoon ; Arid Central-asia ; High-resolution ; Central China ; Yr Bp ; Cultural Response ; Sediment Records ; Late Pleistocene
Funding ProjectNational Natural Science Foundation of China[90502008] ; National Natural Science Foundation of China[40871006] ; National Natural Science Foundation of China[40721061] ; Program for New Century Excellent Talents in University
WOS Research AreaScience & Technology - Other Topics
WOS SubjectMultidisciplinary Sciences
WOS IDWOS:000280808100019
Funding OrganizationNational Natural Science Foundation of China ; Program for New Century Excellent Talents in University
PublisherSCIENCE PRESS
Document Type期刊论文
Identifierhttp://ir.nigpas.ac.cn/handle/332004/330
Collection中国科学院南京地质古生物研究所
Corresponding AuthorAn ChenBang
Affiliation1.Lanzhou Univ, MOR Key Lab W Chinas Environm Syst, Lanzhou 730000, Peoples R China
2.Chinese Acad Sci, Nanjing Inst Geol & Paleontol, Nanjing 210008, Peoples R China
Recommended Citation
GB/T 7714
Tao ShiChen,An ChenBang,Chen FaHu,et al. Pollen-inferred vegetation and environmental changes since 16.7 ka BP at Balikun Lake, Xinjiang[J]. CHINESE SCIENCE BULLETIN,2010,55(22):2449-2457.
APA Tao ShiChen.,An ChenBang.,Chen FaHu.,Tang LingYu .,Wang ZongLi.,...&Zhao JiaJu.(2010).Pollen-inferred vegetation and environmental changes since 16.7 ka BP at Balikun Lake, Xinjiang.CHINESE SCIENCE BULLETIN,55(22),2449-2457.
MLA Tao ShiChen,et al."Pollen-inferred vegetation and environmental changes since 16.7 ka BP at Balikun Lake, Xinjiang".CHINESE SCIENCE BULLETIN 55.22(2010):2449-2457.
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