Coral reefs as sources of atmospheric CO2. Spatial distribution of PCO2 in Majuro Atoll.
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- Kawahata Hodaka
- Marine Geology Department, Geological Survey of Japan Graduate School of Science, Tohoku University
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- Suzuki Atsushi
- Marine Geology Department, Geological Survey of Japan
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- Goto Koichi
- Kansai Environmental Engineering Center Co., Ltd.
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The integrated effects of photosynthesis-respiration and precipitation-dissolution of CaCO3 on the partial pressure of carbon dioxide in seawater (PCO2) by the carbonate-producing biological activities (e.g., coral reefs, coccolithophorids) have been extensively debated. Here we document PCO2 values inside and outside the lagoon of Majuro Atoll. The PCO2 was enhanced by 27 μatm on average within the atoll relative to ocean values. Alkalinity-total CO2 relationship in the lagoonal water indicates that calcification plays a major role in the net carbon cycle in this reef system while rapid turnover of organic matter results in no significant net air-sea flux. The data show that atoll- and barrier-type of coral reefs potentially work as a source of CO2.
収録刊行物
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- GEOCHEMICAL JOURNAL
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GEOCHEMICAL JOURNAL 33 (5), 295-303, 1999
一般社団法人日本地球化学会
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詳細情報 詳細情報について
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- CRID
- 1390282679527479680
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- NII論文ID
- 130003743384
- 10008804230
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- NII書誌ID
- AA00654975
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- ISSN
- 18805973
- 00167002
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- NDL書誌ID
- 4871747
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- 使用不可