气候变化领域集成服务门户(CCPortal): A 1.68 Ma organic isotope record from the Hetao Basin, upper reaches of the Yellow River in northern China: Implications for hydrological and ecological variations

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DOI	10.1016/j.gloplacha.2019.103061
	A 1.68 Ma organic isotope record from the Hetao Basin, upper reaches of the Yellow River in northern China: Implications for hydrological and ecological variations
	Li, Baofeng; Feng, Qi; Wang, Fei; Wang, Xin; Li, Zaijun; Zhang, Chengqi; Guo, Xiaoyan; Liu, Wen; Li, Ruolin
发表日期	2020
ISSN	0921-8181
EISSN	1872-6364
卷号	184
英文摘要	Quaternary hydrological and ecological variation of the paleolakes, intermittently developed within the Hetao Basin in North China, is not only closely related to the evolution of the Yellow River discharge but also influenced by the East Asian summer monsoon. However, long-term variability history of hydrology and ecology of these lakes, as well as the driving mechanism, is still poorly understood. Here, we reconstructed the hydrological and ecological variation of these paleolakes since the past similar to 1.68 Ma based on the interpretation of multi-geochemical proxies of the organic matter including TOC and TN concentrations, C/N ratios, and the delta C-13 and delta N-15 values. The results show that the lakes in the Hetao Basin are dominated by relative low lake level, deteriorated aquatic plant abundances and low phytoplankton productivity during the intervals similar to 1.47 to similar to 1.30 and similar to 1.17 to similar to 1.07 Ma, and similar to 0.68 to similar to 0.60 Ma, while relative high lake level with flourishing aquatic ecosystem and high aquatic productivity occurred from similar to 0.47 Ma to the last interglacial. Meanwhile, tectonically-driven relative height of the basin outlet, preventing the Yellow River water outflows the basin to widen the Yellow River channel in the basin, may be the key factor resulting in the significant rising of the water level of the paleolake formed within the Hetao Basin from similar to 0.47 Ma to the last interglacial.
英文关键词	The Hetao Basin; Hydrology; Ecology; Sedimentary organic matter; The Yellow River
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS关键词	STABLE CARBON-ISOTOPE ; PLEISTOCENE LOESS DEPOSITS ; INNER-MONGOLIA ; LAKE-SEDIMENTS ; CLIMATE-CHANGE ; HOLOCENE CLIMATE ; GRAIN-SIZE ; MATTER ; NITROGEN ; EVOLUTION
WOS记录号	WOS:000508491500017
来源期刊	GLOBAL AND PLANETARY CHANGE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239357
作者单位	[Li, Baofeng; Feng, Qi; Zhang, Chengqi; Guo, Xiaoyan; Liu, Wen; Li, Ruolin] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Ecohydrol Inland River Basin, Lanzhou 730000, Peoples R China; [Li, Baofeng; Wang, Fei; Wang, Xin; Li, Zaijun] Lanzhou Univ, Key Lab West Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China; [Li, Baofeng; Feng, Qi; Zhang, Chengqi; Guo, Xiaoyan; Liu, Wen; Li, Ruolin] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Alxa Desert Ecohydrol Expt Res Stn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Li, Baofeng,Feng, Qi,Wang, Fei,et al. A 1.68 Ma organic isotope record from the Hetao Basin, upper reaches of the Yellow River in northern China: Implications for hydrological and ecological variations[J]. 中国科学院西北生态环境资源研究院,2020,184.
APA	Li, Baofeng.,Feng, Qi.,Wang, Fei.,Wang, Xin.,Li, Zaijun.,...&Li, Ruolin.(2020).A 1.68 Ma organic isotope record from the Hetao Basin, upper reaches of the Yellow River in northern China: Implications for hydrological and ecological variations.GLOBAL AND PLANETARY CHANGE,184.
MLA	Li, Baofeng,et al."A 1.68 Ma organic isotope record from the Hetao Basin, upper reaches of the Yellow River in northern China: Implications for hydrological and ecological variations".GLOBAL AND PLANETARY CHANGE 184(2020).