南方科技大学知识苑(SUSTech KC): Heterogeneity in Permeability and Particulate Organic Carbon Content Controls the Redox Condition of Riverbed Sediments at Different Timescales

题名	Heterogeneity in Permeability and Particulate Organic Carbon Content Controls the Redox Condition of Riverbed Sediments at Different Timescales
作者	Chen, Kewei1 ; Guo, Zhilin1 ; Zhan, Yang 1 ; Roden, Eric E.2; Zheng, Chunmiao1,3
通讯作者	Roden, Eric E.; Zheng, Chunmiao
发表日期	2024-06-01
DOI	10.1029/2023GL107761
发表期刊	GEOPHYSICAL RESEARCH LETTERS 影响因子和分区
ISSN	0094-8276
EISSN	1944-8007
卷号	51 期号:11
摘要	The hydrological and biogeochemical properties of the hyporheic zone in stream and riverine ecosystems have been extensively studied over the past two decades. Although it is widely acknowledged that sediment heterogeneity can influence biogeochemical reactions, little effort has been made to understand the role of heterogeneity on the spatiotemporal variability of riverbed redox conditions under changing flow dynamics at different timescales. Here we integrate a mechanistic model and field data to demonstrate that heterogeneity in permeability plays a vital role in modulating sediment redox conditions at both seasonal (annual) and event (daily-to-weekly) timescales, whereas heterogeneity in particulate organic carbon (POC) content only has a comparable influence on redox conditions at the seasonal timescale. These findings underscore the importance of accurately characterizing sediment heterogeneity, in terms of permeability and POC content, in quantifying biogeochemical dynamics in the riverbed and hyporheic zones of riverine ecosystems.
关键词	hydrologic exchange flow sediment redox condition heterogeneity reactive transport hyporheic zone
相关链接	[来源记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一 ; 通讯
资助项目	National Key R&D program of China["2021YFC3200500","2021YFC3200502"] ; Guangdong Provincial Basic and Applied Basic Research Fund[2021A1515110781] ; Shenzhen Science and Technology Innovation Committee[JCYJ20210324105009024] ; U.S. Department of Energy, Office of Biological and Environmental Research, Environmental System Science (ESS) program["DE-SC0016217","DE-SC0020309"] ; null[42141003] ; null[41931292] ; null[42207062]
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:001239174500001
出版者	AMER GEOPHYSICAL UNION
ESI学科分类	GEOSCIENCES
来源库	Web of Science
引用统计	被引频次[WOS]：2
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/788006
专题	工学院_环境科学与工程学院
作者单位	1.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Shenzhen, Peoples R China 2.Univ Wisconsin, Dept Geosci, Madison, WI 53706 USA 3.Eastern Inst Adv Study, Eastern Inst Technol, Ningbo, Peoples R China
第一作者单位	环境科学与工程学院
通讯作者单位	环境科学与工程学院
第一作者的第一单位	环境科学与工程学院
推荐引用方式 GB/T 7714	Chen, Kewei,Guo, Zhilin,Zhan, Yang,et al. Heterogeneity in Permeability and Particulate Organic Carbon Content Controls the Redox Condition of Riverbed Sediments at Different Timescales[J]. GEOPHYSICAL RESEARCH LETTERS,2024,51(11).
APA	Chen, Kewei,Guo, Zhilin,Zhan, Yang,Roden, Eric E.,&Zheng, Chunmiao.(2024).Heterogeneity in Permeability and Particulate Organic Carbon Content Controls the Redox Condition of Riverbed Sediments at Different Timescales.GEOPHYSICAL RESEARCH LETTERS,51(11).
MLA	Chen, Kewei,et al."Heterogeneity in Permeability and Particulate Organic Carbon Content Controls the Redox Condition of Riverbed Sediments at Different Timescales".GEOPHYSICAL RESEARCH LETTERS 51.11(2024).