| DOI: | 10.1002/grl.51000
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| 论文题名: | Estuarine acidification and minimum buffer zone - A conceptual study |
| 作者: | Hu X.; Cai W.-J.
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| 刊名: | Geophysical Research Letters
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| ISSN: | 0094-8519
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| EISSN: | 1944-8250
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| 出版年: | 2013
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| 卷: | 40, 期:19 | | 起始页码: | 5176
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| 结束页码: | 5181
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| 语种: | 英语
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| 英文关键词: | anthropogenic CO2
; carbon cycle
; carbonate saturation state
; estuarine acidification
; ocean acidification
; pH
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| Scopus关键词: | Anthropogenic CO
; anthropogenic CO2
; Biogeochemical process
; Carbon cycles
; Carbonate saturations
; Conceptual study
; Ocean acidifications
; Oxygen consumption
; Acidification
; Carbon dioxide
; pH
; Weathering
; Estuaries
; acidification
; buffer zone
; carbon cycle
; carbonate
; mixing
; oxygen consumption
; pH
; respiration
; river water
; seawater
; water column
; weathering
; Amazon River
; Mississippi
; Saint John River
; United States
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| 英文摘要: | This study uses a simulation method to explore how estuarine pH is affected by mixing between river water, anthropogenic CO2 enriched seawater, and by respiration. Three rivers with different levels of weathering products (Amazon, Mississippi, and St. Johns) are selected for this simulation. The results indicate that estuaries that receive low to moderate levels of weathering products (Amazon and St. Johns) exhibit a maximum pH decrease in the midsalinity region as a result of anthropogenic CO2 intrusion. This maximum pH decrease coincides with a previously unrecognized mid-salinity minimum buffer zone (MBZ). In addition, water column oxygen consumption can further depress pH for all simulated estuaries. We suggest that recognition of the estuarine MBZs may be important for studying estuarine calcifying organisms and pH-sensitive biogeochemical processes. Key Points Ocean acidification and O2 consumption can both lead to estuarine acidification An previously undefined estuarine minimum buffer zone (MBZ) is demonstrated Both estuarine carbonate chemistry and temperature affect the MBZ ©2013. American Geophysical Union. All Rights Reserved. |
| URL: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-84887010791&doi=10.1002%2fgrl.51000&partnerID=40&md5=0ee8b79eae8e40b0305fbea63275035e
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| Citation statistics: |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/5783
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| Appears in Collections: | 气候减缓与适应
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作者单位: | Department of Physical and Environmental Sciences, Texas A and M University-Corpus Christi, Corpus Christi, TX 78412, United States
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| Recommended Citation: | |
Hu X.,Cai W.-J.. Estuarine acidification and minimum buffer zone - A conceptual study[J]. Geophysical Research Letters,2013-01-01,40(19).
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