Geochemical Indicators on the Central Tibetan Plateau Lake Sediments: Historical Climate Change and Regional Sustainability
文献类型：期刊论文
| 作者 | Ma, Xi1; Wang, Xiaodan1; Gao, Yunlong1; Yue, Fujun2; Chen, Wei3,4
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| 刊名 | SUSTAINABILITY
 |
| 出版日期 | 2024-09-01 |
| 卷号 | 16期号:18页码:14 |
| 关键词 | Tibetan Plateau lake sediments stable isotope pollen Holocene regional sustainability |
| DOI | 10.3390/su16188186 |
| 通讯作者 | Wang, Xiaodan(wangxiaodan@gzmu.edu.cn) |
| 英文摘要 | 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. |
| WOS关键词 | 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:001323097800001 |
| 出版者 | MDPI |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research Program ; National Natural Science Foundation of China |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/44364]  |
| 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. |
入库方式： OAI收割
来源：南京地质古生物研究所
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