干旱区生态环境知识资源中心(Arid): Response mechanism of sediment organic matter of plateau lakes in cold and arid regions to climate change: a case study of Hulun Lake, China

Arid

DOI	10.1007/s11356-022-24097-z
	Response mechanism of sediment organic matter of plateau lakes in cold and arid regions to climate change: a case study of Hulun Lake, China
	Wang, Wenwen; Zhao, Li; Li, Wei; Chen, Junyi; Wang, Shuhang
通讯作者	Wang, SH
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
EISSN	1614-7499
出版年	2023
卷号	30 期号:10 页码:26778-26790
英文摘要	Lake organic matter is one of the important forms of terrestrial carbon, and its sedimentary evolution is affected by many factors such as climate and sources. However, few studies have been conducted on the feedback mechanism of the sedimentary evolution of organic matter to climate change in cold and arid lakes. Historical variations and compositions of sources of the sediment organic matter (SOM) of Hulun Lake, a typical lake in the cold and arid region of China, were studied by multiple methods. The interactions and fee7dback mechanisms between the sedimentary evolution of SOM and climate change, and compositions of SOM source change, were also discussed. Overall, the characteristic indexes of the SOM, including total organic carbon (TOC), carbon stable isotope (delta C-13), carbon to nitrogen ratio (C/N), and fluorescence intensity (FI) of the protein-like component in water extractable organic matter (WEOM), showed obvious and uniform characteristics of periodical changes. The indexes were relatively stable before 1920, and fluctuated from 1920 to 1979. Since the 1980s, values of TOC, delta C-13, and FI of the protein-like component in WEOM has increased, while C/N decreased. The absolute dominant contribution of terrestrial source to the SOM had changed, and the relative average contribution rate of autochthonous source increased from 17.6% before 1920 to 36.9% after 2000. The increase of temperature, strong evaporation concentration effect, and change of compositions of SOM sources are the important driving factors of the sedimentary evolution of organic matter in Hulun Lake.
英文关键词	Plateau lake Hulun Lake Sediment organic matter Sedimentary evolution Climate change Response mechanism
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000882352600001
WOS关键词	TIBETAN PLATEAU ; CARBON BURIAL ; STABLE-ISOTOPES ; INNER-MONGOLIA ; WATER ; FLUORESCENCE ; PHYTOPLANKTON ; TRANSFORMATION ; PRESERVATION ; BIOMARKERS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/396245
推荐引用方式 GB/T 7714	Wang, Wenwen,Zhao, Li,Li, Wei,et al. Response mechanism of sediment organic matter of plateau lakes in cold and arid regions to climate change: a case study of Hulun Lake, China[J],2023,30(10):26778-26790.
APA	Wang, Wenwen,Zhao, Li,Li, Wei,Chen, Junyi,&Wang, Shuhang.(2023).Response mechanism of sediment organic matter of plateau lakes in cold and arid regions to climate change: a case study of Hulun Lake, China.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,30(10),26778-26790.
MLA	Wang, Wenwen,et al."Response mechanism of sediment organic matter of plateau lakes in cold and arid regions to climate change: a case study of Hulun Lake, China".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 30.10(2023):26778-26790.