Untangling the coupling effect of water quality and quantity on lake algal blooms in Lake Hulun from a dual perspective of remote sensing and sediment cores

doi:10.1016/j.jhydrol.2024.132141

IMECH-IR > 流固耦合系统力学重点实验室

	Untangling the coupling effect of water quality and quantity on lake algal blooms in Lake Hulun from a dual perspective of remote sensing and sediment cores
	Zhang, Hao; Li, Yu; Yao B(姚波); Huang, Yuqi ; Wang, Shengrui ; Ni, Shouqing
发表期刊	JOURNAL OF HYDROLOGY
	2024-12
卷号	645 页码:132141
ISSN	0022-1694
摘要	Algal blooms and sediment diatoms are crucial indicators of lake water ecology, influenced by water quantity and quality. However, the coupled effects of water quality and quantity changes on algal blooms are still unclear, especially for lakes in cold and arid regions. This study assessed the long-term variations in algal blooms in Hulun Lake using a novel approach combining remote sensing and sediment core samples for diatom analysis. Two mutation points from the structural change test were identified in approximately 2000 and 2010 for algal bloom area (MBE) and sediment diatom richness, indicating asynchronous algal blooms. A structural equation model (SEM) demonstrated that water level (WL) changes were the dominant influencing factor, co-driving the variations in algal blooms and sediment diatoms in conjunction with total nitrogen (TN), total phosphorus (TP), and chemical oxygen demand (COD). The results revealed nonlinear relationships between the lake WL, TN, Chla, and COD. The water level of 543 m emerged as a critical threshold affecting the relationship between water quality and quantity. Distinct differences in this relationship were observed when water levels were above or below this threshold. These variations became particularly pronounced during periods of high and low water levels. The results provide novel insights into the dynamics of algal blooms and can further support lake ecosystem conservation and management.
关键词	Algal blooms Water quality Water quantity Coupling effects Hulun Lake
DOI	10.1016/j.jhydrol.2024.132141
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:001356750500001
WOS研究方向	Engineering ; Geology ; Water Resources
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
项目资助者	Key R & D Program of Shandong Province {2021CXGC011202] ; National Key Research and Development Project of China {2019YFC0409201]
论文分区	一类
力学所作者排名	1
RpAuthor	Li Y ; Yao B
引用统计
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/97177
专题	流固耦合系统力学重点实验室
作者单位	1.【Zhang, Hao & Li, Yu & Huang, Yuqi & Wang, Shengrui】 Beijing Normal Univ Zhuhai, Adv Inst Nat Sci, Ctr Water Res, Guangdong Hong Kong Joint Lab Water Secur, Zhuhai 519087, Guangdong, Peoples R China 2.【Zhang, Hao & Li, Yu & Huang, Yuqi & Wang, Shengrui】 Beijing Normal Univ, Coll Water Sci, Beijing 100875, Peoples R China 3.【Wang, Shengrui】 Yunnan Agr Univ, Coll Resources & Environm, Kunming 650201, Peoples R China 4.【Yao, Bo】 Chinese Acad Sci, Key Lab Mech Fluid Solid Coupling Syst, Inst Mech, Beijing 100190, Peoples R China 5.【Ni, Shouqing】 Shandong Univ, Sch Environm Sci & Engn, Qingdao 266237, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Hao,Li, Yu,Yao B,et al. Untangling the coupling effect of water quality and quantity on lake algal blooms in Lake Hulun from a dual perspective of remote sensing and sediment cores[J]. JOURNAL OF HYDROLOGY,2024,645:132141.Rp_Au:Li Y, Yao B
APA	Zhang, Hao,Li, Yu,姚波,Huang, Yuqi,Wang, Shengrui,&Ni, Shouqing.(2024).Untangling the coupling effect of water quality and quantity on lake algal blooms in Lake Hulun from a dual perspective of remote sensing and sediment cores.JOURNAL OF HYDROLOGY,645,132141.
MLA	Zhang, Hao,et al."Untangling the coupling effect of water quality and quantity on lake algal blooms in Lake Hulun from a dual perspective of remote sensing and sediment cores".JOURNAL OF HYDROLOGY 645(2024):132141.