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    請使用永久網址來引用或連結此文件: http://ir.lib.ncu.edu.tw/handle/987654321/36017


    題名: Reconciling the paradox that the heterotrophic waters of the East China Sea shelf act as a significant CO2 sink during the summertime: Evidence and implications
    作者: Chou,WC;Gong,GC;Sheu,DD;Jan,S;Hung,CC;Chen,CC
    貢獻者: 水文科學研究所
    關鍵詞: CARBON;DYNAMICS;METABOLISM;SEAWATER;OCEAN
    日期: 2009
    上傳時間: 2010-07-08 09:29:51 (UTC+8)
    出版者: 中央大學
    摘要: To explore the paradox that the heterotrophic waters of the East China Sea (ECS) shelf act as a significant CO2 sink in summer, vertical structures of carbon chemistry and hydrography were examined in July 2007. The results show that waters above the pycnocline (similar to 10 to 30 m) in the major CO2 sink area are supersaturated with oxygen (110 +/- 7%; autotrophic) but undersaturated with respect to atmospheric CO2 (Delta fCO(2) = -130 +/- 58 mu atm; sink). In contrast, waters below the pycnocline are undersaturated with respect to oxygen (61 +/- 16%; heterotrophic) but supersaturated with CO2 (DfCO2 = 116 +/- 115 mu atm; source). This demonstrates that summer stratification is the key factor maintaining the CO2 sink status in the heterotrophic ECS shelf waters. Furthermore, the shallow pycnocline can easily be broken down when strong mixing occurs, potentially allowing the respired CO2 stored in the subsurface waters to return to the atmosphere. Citation: Chou, W.-C., G.-C. Gong, D. D. Sheu, S. Jan, C.-C. Hung, and C.-C. Chen (2009), Reconciling the paradox that the heterotrophic waters of the East China Sea shelf act as a significant CO2 sink during the summertime: Evidence and implications, Geophys. Res. Lett., 36, L15607, doi: 10.1029/2009GL038475.
    關聯: GEOPHYSICAL RESEARCH LETTERS
    顯示於類別:[水文與海洋科學研究所] 期刊論文

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