干旱区生态环境知识资源中心(Arid): Linkage between C-4 vegetation expansion and dune stabilization in the deserts of NE China during the late Quaternary

Arid

DOI	10.1016/j.quaint.2018.10.026
	Linkage between C-4 vegetation expansion and dune stabilization in the deserts of NE China during the late Quaternary
	Guo, Licheng 1,2,3; Xiong, Shangfa 1,2,3; Dong, Xinxin 4; Ding, Zhongli 1,2,3; Yang, Ping 5; Zhao, Hua 6; Wu, Jiabin 1,2,3; Ye, Wei 5; Jin, Guiyun 7; Wu, Wenwan 7; Zheng, Lin 8
通讯作者	Guo, Licheng ; Xiong, Shangfa
会议名称	3rd Conference of the Asian-Association-for-Quaternary-Research (ASQUA) on Quaternary Environments and Ancient Civilizations in East Asia
会议日期	SEP 04-08, 2017
会议地点	SOUTH KOREA
英文摘要	Knowledge of the role of C-4 vegetation expansion in regulating dune stabilization during the late Quaternary is important for understanding the evolution of the environment and climate in the climatically-sensitive margin of the East Asian summer monsoon. However, due to the lack of both reliable vegetation records and chronological control during episodes of dune activity, the relationship between C-4 vegetation expansion and dune stabilization in the deserts of NE China during the late Quaternary remains unclear. Here, we present a new regional compilation of late Quaternary stable carbon isotopic data from organic matter, together with dated records from sub-aerial sedimentary deposits in the region. Our compilation of vegetation development and dune activity in these deserts suggests that C-4 vegetation expansion, with a main contribution from Chenopodiaceae, and a secondary contribution from Poaceae and Cyperaceae, may have played a critical role in dune semi-stabilization with a northwestward trend, from similar to 13 to 9 ka; and dune stabilization throughout the entire study region, from similar to 9 to 5 ka. In addition, during the late Holocene, intensified millet cultivation (or overgrazing) and/or climatic deterioration at similar to 1.5 ka likely caused an increase in C-4 vegetation abundance in the deserts of NE China, which is associated with a dune mobilization episode. In contrast, after similar to 2.5 ka, decreased vegetation cover and dune mobilization in the Mu Us and Hobq deserts were likely caused by poor land-use practices and historically documented droughts. Overall, C-4 vegetation expansion was the main cause of dune stabilization in these deserts during the late Quaternary.
英文关键词	C-4 vegetation Dune stabilization Late Quaternary Desert China
来源出版物	QUATERNARY INTERNATIONAL
ISSN	1040-6182
EISSN	1873-4553
出版年	2019
卷号	503
页码	10-23
出版者	PERGAMON-ELSEVIER SCIENCE LTD
类型	Article; Proceedings Paper
语种	英语
国家	Peoples R China
收录类别	CPCI-S
WOS记录号	WOS:000460632300003
WOS关键词	MU US DESERT ; HOLOCENE ENVIRONMENTAL-CHANGES ; CARBON-ISOTOPIC COMPOSITION ; HUNSHANDAKE SANDY LAND ; CENTRAL INNER-MONGOLIA ; ASIAN SUMMER MONSOON ; LAST GLACIAL MAXIMUM ; NORTHERN CHINA ; LATE PLEISTOCENE ; OSL CHRONOLOGY
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS研究方向	Physical Geography ; Geology
资源类型	会议论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/308070
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.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China; 4.Chinese Acad Sci, Bur Gen Affairs, Beijing 100864, Peoples R China; 5.Zhejiang Normal Univ, Coll Geog & Environm Sci, Jinhua 321004, Peoples R China; 6.Chinese Acad Geol Sci, Inst Hydrogeol & Environm Geol, Shijiazhuang 050061, Hebei, Peoples R China; 7.Shandong Univ, Inst Cultural Heritage, Dept Archaeol, Jinan 250100, Shandong, Peoples R China; 8.Jiangxi Normal Univ, Sch Geog & Environm, Nanchang 330022, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Guo, Licheng,Xiong, Shangfa,Dong, Xinxin,et al. Linkage between C-4 vegetation expansion and dune stabilization in the deserts of NE China during the late Quaternary[C]:PERGAMON-ELSEVIER SCIENCE LTD,2019:10-23.