Scopus记录号: 2-s2.0-85054799271
论文题名: Biogeochemical controls on coastal hypoxia
作者: Fennel K. ; Testa J.M.
刊名: Annual Review of Marine Science
ISSN: 19411405
出版年: 2019
卷: 11 起始页码: 105
结束页码: 130
语种: 英语
英文关键词: anthropogenic nutrient load
; estuary
; hypoxia
; residence time
; river-dominated shelf
; upwelling shelf
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
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. 资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/122803
Appears in Collections: 气候变化事实与影响
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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
Recommended Citation:
Fennel K.,Testa J.M.. Biogeochemical controls on coastal hypoxia[J]. Annual Review of Marine Science,2019-01-01,11