Evolution of Luyang Lake since the last 34,000 years: Climatic changes and anthropogenic impacts

doi:10.1016/j.quaint.2016.06.009

IVPP-IR > 中科院古脊椎所（2000年以后）

	Evolution of Luyang Lake since the last 34,000 years: Climatic changes and anthropogenic impacts
	Yan, Yonghao 1,2,3; Zhou, Jie 1,2,4; He, Zhong 1,2; Sun, Qianli 5; Fei, Jie 6; Zhou, Xinying 7; Zhao, Keliang 7; Yang, Linhai 8; Long, Hao 9; Zheng, Hongbo 10
	2017-06-10
发表期刊	QUATERNARY INTERNATIONAL
卷号	440 页码:90-98
文章类型	Article
摘要	A sediment section retrieved from Luyang Lake, Shaanxi province, China was employed for grain-size, total organic carbon content (TOC) and carbonates (CaCO3) analyses. Based on the Optically Stimulated Luminescence (OSL) chronology, the evolution of Luyang Lake since the last 34,000 years was reconstructed. Then the historical anthropogenic information like populations and arable lands obtained from literature were incorporated into the environmental sequence to demonstrate the linkage of lake evolution with both climatic and anthropogenic forcings. It indicated that the appearance of loessial sediment during ca. 33.4-10.7 ka exhibited a much lower lake level associated with a cold and dry climate setting. The sediment became finer with increasing TOC after ca. 10.7 ka implied the enhanced monsoon rainfall and relatively higher lake level until ca. 4.6 ka. Much higher TOC and lowest CaCO3 at 7.2-4.6 ka suggested the Holocene Climate Optimum in the region. The rising CaCO3 and declining TOC at as. 4.6-2.0 ka revealed the enhanced evaporation/precipitation rate and depressed paleoproductivity, suggesting a drier climate. TOC reached its highest after ca. 2 ka, coinciding with the increasing population and the expanding arable lands since the last 600 years, would suggest the anthropogenic impacts like land reclamation and farming rather than climate forcing. Briefly, the evolution of Luyang Lake was controlled by the monsoon climate through geological times and the intensified anthropogenic interferences since the last 2 ka, especially the last 600 years, would account for the transformation of freshwater lake to a saline lake and wetland environment. (C) 2016 Elsevier Ltd and INQUA. All rights reserved.
关键词	Lacustrine Sediments Lake Evolution Guanzhong Basin Climate Change
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1016/j.quaint.2016.06.009
关键词[WOS]	NORTH-CENTRAL CHINA ; EAST-ASIAN MONSOON ; SIZE DISTRIBUTION ; GUANZHONG BASIN ; LATE GLACIATION ; INNER-MONGOLIA ; DAIHAI LAKE ; GRAIN-SIZE ; HOLOCENE ; SEDIMENTS
收录类别	SCI
语种	英语
项目资助者	"Strategic Priority Research Program" of the Chinese Academy of Sciences(XDB03020300) ; National Science Foundation of China(41472156) ; West Light Foundation of the Chinese Academy of Science ; Northwest AF University(Z111021308 ; Study foundation of visiting scholar programs(201504910452) ; Z109021430 ; Z109021537)
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000404311300010
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7717
专题	中科院古脊椎所（2000年以后）
作者单位	1.Chinese Acad Sci, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, Minist Water Resources, Yangling 712100, Shaanxi, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Kunming Branch, Kunming 650204, Peoples R China 5.East China Normal Univ, State Key Lab Estuary & Coastal Res, Shanghai 200062, Peoples R China 6.Fudan Univ, Ctr Hist Geog Studies, Shanghai 200433, Peoples R China 7.Chinese Acad Sci, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China 8.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China 9.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Jiangsu, Peoples R China 10.Nanjing Normal Univ, Sch Geog Sci, Nanjing 210023, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Yan, Yonghao,Zhou, Jie,He, Zhong,et al. Evolution of Luyang Lake since the last 34,000 years: Climatic changes and anthropogenic impacts[J]. QUATERNARY INTERNATIONAL,2017,440:90-98.
APA	Yan, Yonghao.,Zhou, Jie.,He, Zhong.,Sun, Qianli.,Fei, Jie.,...&Zheng, Hongbo.(2017).Evolution of Luyang Lake since the last 34,000 years: Climatic changes and anthropogenic impacts.QUATERNARY INTERNATIONAL,440,90-98.
MLA	Yan, Yonghao,et al."Evolution of Luyang Lake since the last 34,000 years: Climatic changes and anthropogenic impacts".QUATERNARY INTERNATIONAL 440(2017):90-98.

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