IEECAS OpenIR  > 黄土与第四纪地质国家重点实验室(2010~)
Environmental humidity changes inferred from multi-indicators in the Jianghan Plain, Central China during the last 12,700 years
Li, F (Li, Feng)[ 1 ]; Zhu, C (Zhu, Cheng)[ 1,2,3 ]; Wu, L (Wu, Li)[ 1,4 ]; Sun, W (Sun, Wei)[ 1 ]; Liu, H (Liu, Hui)[ 5 ]; Chyi, SJ (Chyi, Shyh-Jeng)[ 6 ]; Kung, CL (Kung, Chi-Lan)[ 6 ]; Zhu, GY (Zhu, Guangyao)[ 7 ]; Wang, XC (Wang, Xiaocui)[ 2 ]
2014-10-28
Source PublicationQUATERNARY INTERNATIONAL
Volume349Pages:68-78
Subtype期刊论文
Abstract

Time sequence of the JZ-2010 profile derived from AMS(14)C dating and the content of the sediment elements Ti, Rb and Sr, the Rb/Sr values as well as the granularity and the magnetic susceptibility are utilized to reconstruct the environmental humidity changes in the Jianghan Plain since 12,700 cal. BP. The comprehensive analyses of multiple alternative indicators indicate that the regional moisture turned from relatively dry to wet after the Late-Glacial period and reached its optimum until the mid-Holocene. However, the trend was punctuated by several decreased humidity phases. Beginning with the severe dry event approximately 4400-4100 cal. BP, the environment was dry as a whole, with modest humidity from approximately 3900 cal. BP. Humidity changes in the study area are dominated by the East Asian monsoon system, which is under the influence of the gradual southward migration of the ITCZ, driven by the summer solar insolation changes in the Northern Hemisphere due to orbital forcing. As the first attempt to apply Rb/Sr value and Ti concentration in tracing moisture evolution in a region with typical subtropical humid climate, this study highlights the different effects and consequences of the proxies throughout the palaeoenvironmental change process, and the impacts of regional topography that sustained tectonic subsidence since the Cretaceous as well as the southeast tilt that opened the plain to the summer monsoon. Moreover, the fluctuation of magnetic susceptibility is associated with the granularity feature, the reduction-oxidation conditions, and the impact of human factors on the natural sedimentary environments during the historic period in the Jianghan Plain.

DOI10.1016/j.quaint.2013.09.040
Indexed BySCI
Language英语
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/9741
Collection黄土与第四纪地质国家重点实验室(2010~)
Corresponding AuthorZhu, C (Zhu, Cheng)[ 1,2,3 ]
Affiliation1.School of Geographic and Oceanographic Sciences, Nanjing University, Nanjing 210023, China;
2.State Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography & Limnology, Chinese Academy of Sciences, Nanjing 210008, China;
3.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China;
4.College of Territorial Resources and Tourism, Anhui Normal University, Wuhu 241003, China;
5.Hubei Provincial Institute of Cultural Relics and Archaeology, Wuhan 430077, China;
6.Department of Geography, National Kaohsiung Normal University, Kaohsiung 80201, Taiwan;
7.Human Literary Society Branch Department, Bengbu College, Bengbu 233000, China
Recommended Citation
GB/T 7714
Li, F ,Zhu, C ,Wu, L ,et al. Environmental humidity changes inferred from multi-indicators in the Jianghan Plain, Central China during the last 12,700 years[J]. QUATERNARY INTERNATIONAL,2014,349:68-78.
APA Li, F .,Zhu, C .,Wu, L .,Sun, W .,Liu, H .,...&Wang, XC .(2014).Environmental humidity changes inferred from multi-indicators in the Jianghan Plain, Central China during the last 12,700 years.QUATERNARY INTERNATIONAL,349,68-78.
MLA Li, F ,et al."Environmental humidity changes inferred from multi-indicators in the Jianghan Plain, Central China during the last 12,700 years".QUATERNARY INTERNATIONAL 349(2014):68-78.
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