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Evolution of Luyang Lake since the last 34,000 years: Climatic changes and anthropogenic impacts
Yan, Yonghao1,2; Zhou, Jie1,2; He, Zhong1; Sun, Qianli5; Fei, Jie6; Zhou, Xinying7; Zhao, Keliang7; Yang, Linhai8; Long, Hao9; Zheng, Hongbo10; Zhou, J (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.; Zhou, J (reprint author), Minist Water Resources, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
SubtypeArticle
2017
Source PublicationQUATERNARY INTERNATIONAL
ISSN1040-6182
description.correspondentemailzhoujie@ms.xab.ac.cn
Volume440Pages:90-98
AbstractA 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.
KeywordLacustrine Sediments Lake Evolution Guanzhong Basin Climate Change
Subject AreaPhysical Geography ; Geology
DOI10.1016/j.quaint.2016.06.009
URL查看原文
Indexed BySCI
Publication PlaceOXFORD
Language英语
WOS IDWOS:000404311300010
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Funding OrganizationStrategic 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, Z109021430, Z109021537]; Study foundation of visiting scholar programs [201504910452] ; 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, Z109021430, Z109021537]; Study foundation of visiting scholar programs [201504910452]
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Document Type期刊论文
Identifierhttp://ir.iswc.ac.cn/handle/361005/7976
Collection水保所科研产出--SCI_2017--SCI
Corresponding AuthorZhou, J (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.; Zhou, J (reprint author), Minist Water Resources, 26 Xinong Rd, Yangling 712100, Shaanxi, Peoples R China.
Affiliation1.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
Recommended Citation
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.,...&Zhou, J .(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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