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  4. 中国科学院新生代地质与环境重点实验室
Holocene environmental changes in the Horqin desert revealed by OSL dating and delta C-13 analyses of paleosols

文献类型：期刊论文

作者Guo, Licheng1,2; Xiong, Shangfa1; Yang, Ping3; Ye, Wei3; Jin, Guiyun4; Wu, Wenwan4; Zhao, Hua5
刊名QUATERNARY INTERNATIONAL
出版日期2018-03-05
卷号469页码:11-19
关键词Horqin Desert Holocene East Asian Summer Monsoon Rainfall Belt Osl Dating C-4 Plants
ISSN号1040-6182
DOI10.1016/j.quaint.2017.06.048
文献子类Article
英文摘要The Horqin desert in northeastern China is located on the climatically-sensitive margin of the East Asian summer monsoon front and the paleosols in the desert potentially provide a record of environmental changes in the region. During the last two decades several paleoenvironmental studies have increased our knowledge of past shifts in the desert-grassland border in the deserts of northeastern China. However, studies of Holocene vegetation changes with high-quality age data are scarce. Here, we present the results of optically stimulated luminescence dating and analyses of magnetic susceptibility, total organic carbon and the stable carbon isotope composition of organic matter, and inferred C-4 biomass, of the paleosol sequences of the Tuquan and Mutougou sections in the Horqin desert and utilize them to document Holocene environmental changes in the region. The results reveal that the East Asian summer monsoon precipitation gradually increased and previously unstable dunes were semi-stabilized from similar to 11 to 9 ka. The semiarid conditions were then replaced by the more humid environment of the Holocene climatic optimum from similar to 9 to 5 ka. During the Holocene climatic optimum, the paleosols in the Tuquan and Mutougou sections developed, and the percentage of C-4 plants increased and the dunes in the Horqin desert were extensively stabilized. Subsequently, alternation of eolian sand mobilization and paleosol development occurred, indicating that the environment became cold and dry, with temporary wet and warm stages. Estimates of C-4 biomass from the two sections demonstrate that the favorable growing conditions for C-4 plants extended to at least 45 degrees N in North China during the Holocene. We conclude that Holocene environmental changes in the Horqin desert were controlled by movements of the East Asian summer monsoon rainfall belt on a millennial time scale, and that human activity also played a significant role in environmental change during the late Holocene. (C) 2017 Elsevier Ltd and INQUA. All rights reserved.
WOS关键词EAST-ASIAN MONSOON ; NORTH-CENTRAL CHINA ; LAST GLACIAL MAXIMUM ; INNER-MONGOLIA ; NORTHEASTERN CHINA ; VEGETATION CHANGES ; LATE QUATERNARY ; CLIMATE CHANGES ; DUNE EVOLUTION ; LOESS PLATEAU
WOS研究方向Physical Geography ; Geology
语种英语
WOS记录号WOS:000428186900003
出版者PERGAMON-ELSEVIER SCIENCE LTD
资助机构National Basic Research Program of China(2013CB956403) ; National Basic Research Program of China(2013CB956403) ; Strategic Priority Research Program of the Chinese Academy of Science(XDB03020503) ; Strategic Priority Research Program of the Chinese Academy of Science(XDB03020503) ; National Nature Science Foundation of China(41272206) ; National Nature Science Foundation of China(41272206) ; National Basic Research Program of China(2013CB956403) ; National Basic Research Program of China(2013CB956403) ; Strategic Priority Research Program of the Chinese Academy of Science(XDB03020503) ; Strategic Priority Research Program of the Chinese Academy of Science(XDB03020503) ; National Nature Science Foundation of China(41272206) ; National Nature Science Foundation of China(41272206) ; National Basic Research Program of China(2013CB956403) ; National Basic Research Program of China(2013CB956403) ; Strategic Priority Research Program of the Chinese Academy of Science(XDB03020503) ; Strategic Priority Research Program of the Chinese Academy of Science(XDB03020503) ; National Nature Science Foundation of China(41272206) ; National Nature Science Foundation of China(41272206) ; National Basic Research Program of China(2013CB956403) ; National Basic Research Program of China(2013CB956403) ; Strategic Priority Research Program of the Chinese Academy of Science(XDB03020503) ; Strategic Priority Research Program of the Chinese Academy of Science(XDB03020503) ; National Nature Science Foundation of China(41272206) ; National Nature Science Foundation of China(41272206)
源URL[http://ir.iggcas.ac.cn/handle/132A11/88330]  
专题地质与地球物理研究所_中国科学院新生代地质与环境重点实验室
通讯作者Guo, Licheng
作者单位1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China
4.Shandong Univ, Inst Cultural Heritage, Dept Archaeol, Jinan 250100, Shandong, Peoples R China
5.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Hebei, Peoples R China
推荐引用方式
GB/T 7714		 Guo, Licheng,Xiong, Shangfa,Yang, Ping,et al. Holocene environmental changes in the Horqin desert revealed by OSL dating and delta C-13 analyses of paleosols[J]. QUATERNARY INTERNATIONAL,2018,469:11-19.
APA Guo, Licheng.,Xiong, Shangfa.,Yang, Ping.,Ye, Wei.,Jin, Guiyun.,...&Zhao, Hua.(2018).Holocene environmental changes in the Horqin desert revealed by OSL dating and delta C-13 analyses of paleosols.QUATERNARY INTERNATIONAL,469,11-19.
MLA Guo, Licheng,et al."Holocene environmental changes in the Horqin desert revealed by OSL dating and delta C-13 analyses of paleosols".QUATERNARY INTERNATIONAL 469(2018):11-19.

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来源：地质与地球物理研究所

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