气候变化领域集成服务门户(CCPortal): Biogeochemical controls on coastal hypoxia

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DOI	10.1146/annurev-marine-010318-095138
	Biogeochemical controls on coastal hypoxia
	Fennel K.; Testa J.M.
发表日期	2019
ISSN	1941-1405
起始页码	105
结束页码	130
卷号	11
英文摘要	Aquatic environments experiencing low-oxygen conditions have been described as hypoxic, suboxic, or anoxic zones; oxygen minimum zones; and, in the popular media, the misnomer "dead zones." This review aims to elucidate important aspects underlying oxygen depletion in diverse coastal systems and provides a synthesis of general relationships between hypoxia and its controlling factors. After presenting a generic overview of the first-order processes, we review system-specific characteristics for selected estuaries where adjacent human settlements contribute to high nutrient loads, river-dominated shelves that receive large inputs of fresh water and anthropogenic nutrients, and upwelling regions where a supply of nutrient-rich, low-oxygen waters generates oxygen minimum zones without direct anthropogenic influence. We propose a nondimensional number that relates the hypoxia timescale and water residence time to guide the cross-system comparison. Our analysis reveals the basic principles underlying hypoxia generation in coastal systems and provides a framework for discussing future changes. © Copyright 2019 by Annual Reviews. All rights reserved.
英文关键词	anthropogenic nutrient load; estuary; hypoxia; residence time; river-dominated shelf; upwelling shelf
语种	英语
scopus关键词	Estuaries; Eutrophication; Oxygen supply; Anthropogenic influence; Aquatic environments; Biogeochemical controls; hypoxia; Low oxygen conditions; Nutrient loads; Residence time; upwelling shelf; Nutrients; anthropogenic effect; biogeochemistry; coastal zone; estuary; hypoxic conditions; nutrient; oxygen; oxygen minimum layer; residence time; shelf dynamics; upwelling; oxygen; anaerobic growth; chemistry; estuary; human; metabolism; river; Anaerobiosis; Estuaries; Humans; Oxygen; Rivers
来源期刊	Annual Review of Marine Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/161940
作者单位	Department of Oceanography, Dalhousie University, Halifax, NS B3H 4R2, Canada; Chesapeake Biological Laboratory, University of Maryland Center for Environmental Studies, Solomons, MD 20688, United States
推荐引用方式 GB/T 7714	Fennel K.,Testa J.M.. Biogeochemical controls on coastal hypoxia[J],2019,11.
APA	Fennel K.,&Testa J.M..(2019).Biogeochemical controls on coastal hypoxia.Annual Review of Marine Science,11.
MLA	Fennel K.,et al."Biogeochemical controls on coastal hypoxia".Annual Review of Marine Science 11(2019).