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Characteristics of carbonate system in the Hangzhou Bay: Under the regulation of air-sea exchange and respiration
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Junyang Wang1, 2, Bin Wang1, 2, Dewang Li1, 2, Zhongsheng Xu1, 2, 4, Yanyi Miao1, 2, 5, Zhi Yang1, 2, Haiyan Jin1, 2, 3, Jianfang Chen1, 2, 3, *
Haiyang Xuebao | 2021, 43(9) : 21 - 32
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Haiyang Xuebao | 2021, 43(9): 21-32
• Article •
Characteristics of carbonate system in the Hangzhou Bay: Under the regulation of air-sea exchange and respiration
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Junyang Wang1, 2, Bin Wang1, 2, Dewang Li1, 2, Zhongsheng Xu1, 2, 4, Yanyi Miao1, 2, 5, Zhi Yang1, 2, Haiyan Jin1, 2, 3, Jianfang Chen1, 2, 3, *
Affiliations
  • 1Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
  • 2Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources, Hangzhou 310012, China
  • 3State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
  • 4Ocean College, Zhejiang University, Zhoushan 316021, China
  • 5School of Oceanography, Shanghai Jiao Tong University, Shanghai 200030, China
Published: 2021-09-25 doi: 10.12284/hyxb2021124
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As a typical high-turbidity bay, the carbonate systems in the Hangzhou Bay are not well documented. In this paper, the spatial distributions of inorganic carbonate paramenters in the Hangzhou Bay were analyzed based on data collected from two summer surveys in 2018 and 2019. The results showed that dissolved inorganic carbon (DIC) concentration and total alkalinity (TA) in surface layer of the Hangzhou Bay ranged from 1 553 μmol/kg to 1 964 μmol/kg and from 1 577 μmol/kg to 2 101 μmol/kg, respectively, which were lower than that of the Changjiang River Estuary (1 407−2 110 μmol/kg and 1 752−2 274 μmol/kg). The spatial distributions of DIC concentration and TA were controlled by the mixing of fresh water and offshore sea water. They were affected by strong tide, which gradually increased DIC concentration from inner bay to outlet of the bay. Air-sea carbon exchange and biological respiration led to decrease and increase of DIC concentration, with the contributions of (−42.3±11.7)% and (34.2±14.3)%, respectively. Such two compensate processes resulted in a net balanced state. The average surface pCO2 in the Hangzhou Bay was 799 μatm (675−932 μatm), indicating that bay waters were source of atmospheric CO2. The revelle factor in the Hangzhou Bay varied from 12.8 to 23.8, suggesting a weaker CO2 buffering capacity than the adjacent East China Sea (the mean value was 11.9). Compared with other estuaries/gulfs, the characteristics of high turbidity and strong tides in the Hangzhou Bay made the spatial distributions of the carbonate system in the bay water had regional specificity.

carbonate systems  /  dissolved inorganic carbon (DIC)  /  distribution  /  Hangzhou Bay
Junyang Wang, Bin Wang, Dewang Li, Zhongsheng Xu, Yanyi Miao, Zhi Yang, Haiyan Jin, Jianfang Chen. Characteristics of carbonate system in the Hangzhou Bay: Under the regulation of air-sea exchange and respiration[J]. Haiyang Xuebao, 2021 , 43 (9) : 21 -32 . DOI: 10.12284/hyxb2021124
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Article Info
doi: 10.12284/hyxb2021124
  • Receive Date：2021-01-29
  • Online Date：2026-02-26
  • Published：2021-09-25
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History
  • Received：2021-01-29
  • Revised：2021-04-21
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Affiliations
    1Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
    2Key Laboratory of Marine Ecosystem Dynamics, Ministry of Natural Resources, Hangzhou 310012, China
    3State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China
    4Ocean College, Zhejiang University, Zhoushan 316021, China
    5School of Oceanography, Shanghai Jiao Tong University, Shanghai 200030, China
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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