Key drivers of hypoxia revealed by time-series data in the coastal waters of Muping, China

doi:10.1016/j.marenvres.2024.106613

YIC-IR

	Key drivers of hypoxia revealed by time-series data in the coastal waters of Muping, China
	Zheng, Xiangyang 1,2; Liu, Hui1,2 ; Xing, Qianguo1,2 ; Li, Yanfang1,2 ; Guo, Jie1,2 ; Tang, Cheng1,2 ; Zou, Tao1,2 ; Hou, Chawei 3
发表期刊	MARINE ENVIRONMENTAL RESEARCH
ISSN	0141-1136
	2024-07-01
卷号	199 页码:12
关键词	Coastal hypoxia Thermal stratification Phytoplankton blooms Time-series data
DOI	10.1016/j.marenvres.2024.106613
通讯作者	Zheng, Xiangyang([email protected]) ; Xing, Qianguo([email protected])
英文摘要	Coastal hypoxia (low dissolved oxygen in seawater) is a cumulative result of many physical and biochemical processes. However, it is often difficult to determine the key drivers of hypoxia due to the lack of frequent observational oceanographic and meteorological data. In this study, high-frequency time-series observational data of dissolved oxygen (DO) and related parameters in the coastal waters of Muping, China, were used to analyze the temporal pattern of hypoxia and its key drivers. Two complete cycles with the formation and destruction of hypoxia were captured over the observational period. Persistent thermal stratification, high winds and phytoplankton blooms are identified as key drivers of hypoxia in this region. Hypoxia largely occurs due to persistent thermal stratification in summer, and hypoxia can be noticeably relieved when strong wind mixing weakens thermal stratification. Furthermore, we found that northerly high winds are more efficient at eroding stratification than southerly winds and thus have a greater ability to relieve hypoxia. This study revealed an episodic hypoxic event driven by a phytoplankton bloom that was probably triggered by terrestrial nutrient loading, confirming the causal relationship between phytoplankton blooms and hypoxia. In addition, we found that the lag time between nutrient loading, phytoplankton blooms and hypoxia can be as short as one week. This study could help better understand the development of hypoxia and forecast phytoplankton and hypoxia, which are beneficial for aquaculture in this region.
资助机构	National Natural Sci- ence Foundation of China
收录类别	SCI
语种	英语
关键词[WOS]	BOTTOM DISSOLVED-OXYGEN ; GULF-OF-MEXICO ; CHANGJIANG ESTUARY ; ORGANIC-MATTER ; RIVER ESTUARY ; WIND ; SUMMER ; SEA ; VARIABILITY ; CARBON
研究领域[WOS]	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Toxicology
WOS记录号	WOS:001259236500001
引用统计
文献类型	期刊论文
条目标识符	http://ir.yic.ac.cn/handle/133337/35884
专题	中国科学院烟台海岸带研究所
通讯作者	Zheng, Xiangyang; Xing, Qianguo
作者单位	1.Chinese Acad Sci, Yantai Inst Coastal Zone Res YIC, CAS Key Lab Coastal Environm Proc & Ecol Remediat, Yantai 264003, Peoples R China 2.Shandong Key Lab Coastal Environm Proc, Yantai 264003, Shandong, Peoples R China 3.State Ocean Adm SOA, Yantai Marine Environm Monitoring Cent Stn, Yantai 265500, Peoples R China
推荐引用方式 GB/T 7714	Zheng, Xiangyang,Liu, Hui,Xing, Qianguo,et al. Key drivers of hypoxia revealed by time-series data in the coastal waters of Muping, China[J]. MARINE ENVIRONMENTAL RESEARCH,2024,199:12.
APA	Zheng, Xiangyang.,Liu, Hui.,Xing, Qianguo.,Li, Yanfang.,Guo, Jie.,...&Hou, Chawei.(2024).Key drivers of hypoxia revealed by time-series data in the coastal waters of Muping, China.MARINE ENVIRONMENTAL RESEARCH,199,12.
MLA	Zheng, Xiangyang,et al."Key drivers of hypoxia revealed by time-series data in the coastal waters of Muping, China".MARINE ENVIRONMENTAL RESEARCH 199(2024):12.