Geochemical Indicators on the Central Tibetan Plateau Lake Sediments: Historical Climate Change and Regional Sustainability

doi:10.3390/su16188186

NIGPAS OpenIR

	Geochemical Indicators on the Central Tibetan Plateau Lake Sediments: Historical Climate Change and Regional Sustainability
通讯作者	Wang, Xiaodan([email protected])
	Ma, Xi 1; Wang, Xiaodan 1; Gao, Yunlong 1; Yue, Fujun 2; Chen, Wei3,4
	2024-09-01
发表期刊	SUSTAINABILITY
卷号	16 期号:18 页码:14
摘要	This study investigates geochemical indicators (TOC, TN, C/N, delta 13Corg, delta 15N, and pollen indicators) from sediment samples of Zigetang Co Lake on the Tibetan Plateau (TP) to explore past climate changes in the lake basin. The findings aim to provide essential data for developing sustainable strategies for the TP region. From 14.0 to 10.8 cal. ka BP, the delta 15N, TOC, TN, and delta 13Corg value of the lake sediments was relatively low; this indicated a low organic matter input into the lake, reflecting a probably cold and arid environment. In addition, the pollen was primarily composed of Artemisia and Gramineae, which are adapted to cold environments, further confirming that the climate during this period was likely cold and dry. From 10.8 to 8.2 cal. ka BP, the changes in the main plant composition were likely due to increased solar radiation, the onset of the monsoon, and higher temperatures and precipitation, which created more favorable conditions for the growth of Cyperaceae. From 8.2 to 4.2 cal. ka BP, when the solar radiation weakened and the monsoon diminished, the basin maintained relatively high water levels, with regional precipitation being likely influenced by westerly winds. From 4.2 to 0.01 cal. ka BP, delta 13Corg and delta 15N initially decreased and then increased, which was likely a transition from a cold-wet climate to warm-dry conditions during the late Holocene, and the Pollen sum also showed significant changes. Understanding climate evolution and vegetation changes is crucial for formulating timely policies to ensure regional sustainable development.
关键词	Tibetan Plateau lake sediments stable isotope pollen Holocene regional sustainability
DOI	10.3390/su16188186
收录类别	SCI
语种	英语
关键词[WOS]	ORGANIC-MATTER ; EARLY HOLOCENE ; MONSOON ; CARBON ; POLLEN ; RECORD ; VALUES ; CHINA ; BASIN ; CO
资助项目	Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China[41803022] ; [2019QZKK0601-3]
WOS研究方向	Science & Technology - Other Topics ; Environmental Sciences & Ecology
WOS类目	Green & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS记录号	WOS:001323097800001
项目资助者	Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China
出版者	MDPI
文献类型	期刊论文
条目标识符	http://ir.nigpas.ac.cn/handle/332004/44365
专题	中国科学院南京地质古生物研究所
通讯作者	Wang, Xiaodan
作者单位	1.Guizhou Minzu Univ, Coll Ecoenvironm Engn, Guiyang 550025, Peoples R China 2.Tianjin Univ, Inst Surface Earth Syst Sci, Sch Earth Syst Sci, Tianjin 300072, Peoples R China 3.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, State Key Lab Palaeobiol & Stratig, Nanjing 210008, Peoples R China 4.Chinese Acad Sci, Ctr Excellence Life & Paleoenvironment, Nanjing 210008, Peoples R China
推荐引用方式 GB/T 7714	Ma, Xi,Wang, Xiaodan,Gao, Yunlong,et al. Geochemical Indicators on the Central Tibetan Plateau Lake Sediments: Historical Climate Change and Regional Sustainability[J]. SUSTAINABILITY,2024,16(18):14.
APA	Ma, Xi,Wang, Xiaodan,Gao, Yunlong,Yue, Fujun,&Chen, Wei.(2024).Geochemical Indicators on the Central Tibetan Plateau Lake Sediments: Historical Climate Change and Regional Sustainability.SUSTAINABILITY,16(18),14.
MLA	Ma, Xi,et al."Geochemical Indicators on the Central Tibetan Plateau Lake Sediments: Historical Climate Change and Regional Sustainability".SUSTAINABILITY 16.18(2024):14.