Influence of a heavy rainfall event on nutrients and phytoplankton dynamics in a well-mixed semi-enclosed bay

doi:10.1016/j.jhydrol.2022.128932

IOCAS-IR > 海洋环流与波动重点实验室

	Influence of a heavy rainfall event on nutrients and phytoplankton dynamics in a well-mixed semi-enclosed bay
	Han, Haiwen 1,2,4; Xiao, Rushui 1,2,4; Gao, Guandong 3,4,5,6,9,10; Yin, Baoshu 3,4,5,6; Liang, Shengkang 7,8; Lv, Xianqing 1,2,4
	2023-02-01
发表期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
卷号	617 页码:20
通讯作者	Gao, Guandong(guandonggao@qdio.ac.cn) ; Liang, Shengkang(liangsk@ouc.edu.cn)
摘要	With a warming climate, extreme precipitation events are projected to occur more frequently in future, which can lead to sediment and freshwater pulses to coastal waters that quickly affect water quality. Understanding how coastal systems respond to and recover from such acute events is becoming more and more important, particularly true in semi-enclosed bays with weak water exchange and purification capacities, such as Jiaozhou Bay (JZB). Based on the three cruises performed on 17 July, 5 and 22 August 2012, a coupled physical-biological model was used to examine ecosystem responses in JZB to Typhoon Damrey, an extreme precipitation event. In order to study the mechanism behind rainfall-induced changes, three groups of sensitivity experiments were set to furtherly analyze the contributions of rivers and atmospheric deposition, respectively. The results showed that typhoon-induced rainfall provided high concentration of dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphorus (DIP) to phytoplankton which caused a remarkable chlorophyll-a increase subsequently. During the heavy rainfall event, the nitrogen and phosphorus inputs from river runoff were 1.80 and 2.14 times than that from atmospheric deposition, respectively. River inputs supported 2.14 times the productivity than that supported by atmospheric deposition. Rainfall-induced nutrient input will lead to blooms in coastal areas, especially in semi-enclosed bays. Since increased rainfall would trigger higher river discharge, rivers became the main carriers of nutrients. Atmospheric deposition provided a low-level supply, and it was limited for alleviating phosphorus limitation in semi-enclosed bays. Enhancing ecological monitoring of rivers and atmospheric deposition is urgent and essential to predict the response of ecosystems to extreme rainfall events.
关键词	Heavy rainfall Physical-biological modeling Nutrition dynamics Phytoplankton dynamics River runoff Atmospheric deposition
DOI	10.1016/j.jhydrol.2022.128932
收录类别	SCI
语种	英语
资助项目	Laoshan Laboratory[LSKJ202203700] ; National Natural Science Foundation (NSFC)[42006004] ; National Natural Science Foundation (NSFC)[U1806214] ; National Key R & D Program of China[2021YFB3901300] ; Shandong Provincial Natural Science Foundation (NSFSD)[ZR2019BD016]
WOS研究方向	Engineering ; Geology ; Water Resources
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS记录号	WOS:000911006900001
出版者	ELSEVIER
WOS关键词	PAMLICO SOUND-SYSTEM ; JIAOZHOU BAY ; WATER-QUALITY ; EXTREME PRECIPITATION ; INTERANNUAL VARIABILITY ; DISSOLVED-OXYGEN ; NITROGEN-CYCLE ; RIVER ESTUARY ; PHOSPHORUS ; QINGDAO
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qdio.ac.cn/handle/337002/183291
专题	海洋环流与波动重点实验室
通讯作者	Gao, Guandong; Liang, Shengkang
作者单位	1.Ocean Univ China, Frontier Sci Ctr Deep Ocean Multispheres & Earth S, Qingdao 266100, Peoples R China 2.Ocean Univ China, Phys Oceanog Lab, Qingdao 266100, Peoples R China 3.Chinese Acad Sci, CAS Key Lab Ocean Circulat & Waves, Inst Oceanol, Qingdao 266071, Peoples R China 4.Qingdao Natl Lab Marine Sci Technol, Funct Lab Ocean Dynam & Climate, Qingdao 266237, Peoples R China 5.Univ Chinese Acad Sci, Coll Marine Sci, Beijing 100029, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, CAS Engn Lab Marine Ranching, Qingdao 266071, Peoples R China 7.Ocean Univ China, Coll Chem & Chem Engn, Qingdao 266100, Peoples R China 8.Minist Educ, Key Lab Marine Chem Theory & Technol, Qingdao 266100, Peoples R China 9.Chinese Acad Sci, Inst Oceanol, Beijing, Peoples R China 10.7 Nanhai lu, Qingdao 266071, Shandong, Peoples R China
通讯作者单位	中国科学院海洋研究所
推荐引用方式 GB/T 7714	Han, Haiwen,Xiao, Rushui,Gao, Guandong,et al. Influence of a heavy rainfall event on nutrients and phytoplankton dynamics in a well-mixed semi-enclosed bay[J]. JOURNAL OF HYDROLOGY,2023,617:20.
APA	Han, Haiwen,Xiao, Rushui,Gao, Guandong,Yin, Baoshu,Liang, Shengkang,&Lv, Xianqing.(2023).Influence of a heavy rainfall event on nutrients and phytoplankton dynamics in a well-mixed semi-enclosed bay.JOURNAL OF HYDROLOGY,617,20.
MLA	Han, Haiwen,et al."Influence of a heavy rainfall event on nutrients and phytoplankton dynamics in a well-mixed semi-enclosed bay".JOURNAL OF HYDROLOGY 617(2023):20.