Revealing carbon balance characteristics in a water conveyance-type lake and differences in carbon sources through its connective hydrological channels

doi:10.1016/j.jhydrol.2020.125820

	Revealing carbon balance characteristics in a water conveyance-type lake and differences in carbon sources through its connective hydrological channels
	Lu, Yao 1,3; Gao, Yang 1,2; Jia, Junjie 1,3; Xia, Shaxia 1; Wen, Xuefa 1; Yu, Xiubo 1; Shi, Kun 2; Li, Zhaoxi 1; Wang, Shuoyue 1
刊名	JOURNAL OF HYDROLOGY
	2021
卷号	592 页码:10
关键词	Lake conveyance Carbon transport Carbon source Water cycle delta C-13-DIC
ISSN号	0022-1694
DOI	10.1016/j.jhydrol.2020.125820
通讯作者	Gao, Yang(gaoyang@igsnrr.ac.cn)
英文摘要	Most of the world's lakes are fed through water conveyance, namely, lakes that continuously receive and discharge water. However, the complex hydrological processes of such lakes make it difficult to determine their specific biogeochemical carbon (C) cycles. Poyang Lake was selected for this study, whose capacity to receive and discharge through water conveyance is the largest in China. We used both main and trace elements in the lake as stable isotopes of surface water and its tributaries to trace C sources and to reveal the C-water coupling relationship. Poyang Lake has a high river-lake connectivity, and results show that it undergoes rapid water renewal. The effect of this is that a large amount of dissolved inorganic carbon (DIC) cannot be converted and deposited into sediment, resulting in an annual DIC input and output of 1.3 x 10(9) kg year(-1). The main DIC sources in Poyang Lake are atmospheric deposition (27%), carbonate weathering (27%) and silicate weathering (26%). Furthermore, the coupling characteristics of C and water in the Poyang Lake Basin change continuously under such conditions. Results from this study provide a reference for the investigation of such water conveyance-type lakes and the coupling effects associated with C and water.
资助项目	National Nature Science Foundation of China[41830860] ; National Nature Science Foundation of China[41871080] ; National Science Fund for Excellent Young Scholars[41922003]
WOS关键词	PARTICULATE ORGANIC-CARBON ; STABLE-ISOTOPES ; FOOD WEBS ; POYANG ; RADIOCARBON ; GROUNDWATER ; PERSPECTIVE ; CONSTRAIN ; DYNAMICS ; SUMMER
WOS研究方向	Engineering ; Geology ; Water Resources
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000639844900050
资助机构	National Nature Science Foundation of China ; National Science Fund for Excellent Young Scholars
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/162603]
专题	中国科学院地理科学与资源研究所
通讯作者	Gao, Yang
作者单位	1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Lu, Yao,Gao, Yang,Jia, Junjie,et al. Revealing carbon balance characteristics in a water conveyance-type lake and differences in carbon sources through its connective hydrological channels[J]. JOURNAL OF HYDROLOGY,2021,592:10.
APA	Lu, Yao.,Gao, Yang.,Jia, Junjie.,Xia, Shaxia.,Wen, Xuefa.,...&Wang, Shuoyue.(2021).Revealing carbon balance characteristics in a water conveyance-type lake and differences in carbon sources through its connective hydrological channels.JOURNAL OF HYDROLOGY,592,10.
MLA	Lu, Yao,et al."Revealing carbon balance characteristics in a water conveyance-type lake and differences in carbon sources through its connective hydrological channels".JOURNAL OF HYDROLOGY 592(2021):10.