干旱区生态环境知识资源中心(Arid): Risk and mechanisms of phosphorus release at the sediment-water interface of lakes in cold and arid regions during non-frozen seasons

Arid

DOI	10.1007/s11356-024-32704-4
	Risk and mechanisms of phosphorus release at the sediment-water interface of lakes in cold and arid regions during non-frozen seasons
	Fei, Qi; Li, Wei; Wang, Shuhang; Zhou, Zhanqi; Wang, Wenwen; Li, Mengze
通讯作者	Wang, WW
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
EISSN	1614-7499
出版年	2024
英文摘要	In recent years, the eutrophication of lakes has accelerated in cold arid regions; the release of nutrients from sediments is an important contributor. The sequential extraction method, high-resolution peeper (HR-Peeper), and diffusive gradients in thin films (DGT) techniques were used to study the occurrence characteristics, release risk, and release mechanism of phosphorus (P) at the sediment-water interface (SWI) of Ulanor Wetland in the Hulun Lake Basin, Inner Mongolia, China. The mean total P concentration in overlying water was lower in August than that in May. Dissolved organic P (DOP) or particulate P (PP) was the main form of P in the overlying water. PP dominates in May and DOP in August. Refractory P was the main form of P in sediments. The concentrations of soluble reactive P and DGT-active P in the pore water of the sediment column were higher than those in the overlying water, and the concentrations were higher in August than those in May. Release of P in the wetland sediments occurred during the non-frozen seasons, with a higher risk in August than in May. The good linear correlation between dissolved P, Fe, and Mn in the DGT profiles verified their co-release due to the anaerobic reduction of Fe/Mn oxides. Moreover, alkaline sediments are also conducive to the release of sediment P. This study can provide data and theoretical support for eutrophication control in Ulanor Wetland and other similar water bodies in cold and arid regions.
英文关键词	Cold and arid regions Wetland Sediment-water interface Phosphorus release risk Diffusive gradients in thin films
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:001174163500003
WOS关键词	SURFACE SEDIMENTS ; IN-SITU ; EUTROPHICATION ; CHINA ; IRON ; MOBILIZATION ; GRADIENTS ; PHOSPHATE ; SULFIDE
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/2XILL650/403664
推荐引用方式 GB/T 7714	Fei, Qi,Li, Wei,Wang, Shuhang,et al. Risk and mechanisms of phosphorus release at the sediment-water interface of lakes in cold and arid regions during non-frozen seasons[J],2024.
APA	Fei, Qi,Li, Wei,Wang, Shuhang,Zhou, Zhanqi,Wang, Wenwen,&Li, Mengze.(2024).Risk and mechanisms of phosphorus release at the sediment-water interface of lakes in cold and arid regions during non-frozen seasons.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH.
MLA	Fei, Qi,et al."Risk and mechanisms of phosphorus release at the sediment-water interface of lakes in cold and arid regions during non-frozen seasons".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH (2024).