Numerical investigation of nutrient limitations in the Bohai Sea

doi:10.1016/j.marenvres.2010.06.003

IOCAS-IR > 海洋环流与波动重点实验室

	Numerical investigation of nutrient limitations in the Bohai Sea
	Liu, Hao 1; Yin, Baoshu 2
	2010-09-01
发表期刊	MARINE ENVIRONMENTAL RESEARCH
ISSN	0141-1136
卷号	70 期号:3-4 页码:308-317
文章类型	Article
摘要	River discharges are the important freshwater and nutrient sources for Bohai Sea (BS), and have a profound impact on the local marine environment. In this paper, the annual cycles of nutrient and phytoplankton dynamics in 1980s were reproduced using a coupled biogeochemical-physical model. Based on the validated simulations, the nutrient limitation characters were further investigated by running the model with the riverine nutrient altered, first enriching nitrogen and then phosphorus. It was found that although the riverine N:P ratios in Yellow and Haihe Rivers were much higher than the Redfield number, the nitrogen enrichment was still able to enhance the algae bloom in Laizhou and Bohai Bays. On the other hand, the response of algae growth to phosphorus enrichment was not thus obvious, which suggests that the local phytoplankton dynamics was characterized by the nitrogen limitation. Simulations also show that the nitrogen enrichment is generally accompanied by the phosphorus consumption, so a shift from nitrogen limitation to phosphorus limitation may occur if such a trend continues. (C) 2010 Elsevier Ltd. All rights reserved.; River discharges are the important freshwater and nutrient sources for Bohai Sea (BS), and have a profound impact on the local marine environment. In this paper, the annual cycles of nutrient and phytoplankton dynamics in 1980s were reproduced using a coupled biogeochemical-physical model. Based on the validated simulations, the nutrient limitation characters were further investigated by running the model with the riverine nutrient altered, first enriching nitrogen and then phosphorus. It was found that although the riverine N:P ratios in Yellow and Haihe Rivers were much higher than the Redfield number, the nitrogen enrichment was still able to enhance the algae bloom in Laizhou and Bohai Bays. On the other hand, the response of algae growth to phosphorus enrichment was not thus obvious, which suggests that the local phytoplankton dynamics was characterized by the nitrogen limitation. Simulations also show that the nitrogen enrichment is generally accompanied by the phosphorus consumption, so a shift from nitrogen limitation to phosphorus limitation may occur if such a trend continues. (C) 2010 Elsevier Ltd. All rights reserved.
关键词	n:p Ratio Algae Bloom a Coupled Biogeochemical-physical Model Bohai Sea
学科领域	Environmental Sciences ; Marine & Freshwater Biology ; Toxicology
DOI	10.1016/j.marenvres.2010.06.003
URL	查看原文
收录类别	SCI
语种	英语
WOS记录号	WOS:000281347200007
引用统计	被引频次：27[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/337002/5292
专题	海洋环流与波动重点实验室
作者单位	1.Shanghai Ocean Univ, Coll Marine Sci, Shanghai 201306, Peoples R China 2.Chinese Acad Sci, Inst Oceanol, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Liu, Hao,Yin, Baoshu. Numerical investigation of nutrient limitations in the Bohai Sea[J]. MARINE ENVIRONMENTAL RESEARCH,2010,70(3-4):308-317.
APA	Liu, Hao,&Yin, Baoshu.(2010).Numerical investigation of nutrient limitations in the Bohai Sea.MARINE ENVIRONMENTAL RESEARCH,70(3-4),308-317.
MLA	Liu, Hao,et al."Numerical investigation of nutrient limitations in the Bohai Sea".MARINE ENVIRONMENTAL RESEARCH 70.3-4(2010):308-317.

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