| Distributions of chlorophyll a and carbon fixed strength of phyto-plankton in autumn of the southern Huanghai Sea waters |
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| 作者姓名： | ZHENG Guoxi SONG Jinming DAI Jicui WANG Yiming |
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| 作者单位： | ZHENG Guoxia 1，2，SONG Jinming 1*，DAI Jicui 1，2，WANG Yiming 3 1. Institute of Oceanology，Chinese Academy of Sciences，Qingdao 266071，China 2. Graduate School，Chinese Academy of Sciences，Beijing 100039，China 3. Zhoushan Marine Eco-environmental Monitoring Station in Zhejiang Province，Zhoushan 316004，China |
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| 基金项目： | 中国科学院基金;山东省青岛市杰出学者基金 |
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| 摘 要： | 1IntroductionRecently,the increasing carbon dioxide(CO2)in the atmosphere is viewed by many as perhaps themost serious global environment problemfacing man-kind.Numerous studies and surveys aiming at theglobal CO2flux therefore,have been made to esti-mate…
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| 关 键 词： | 叶绿素 黄海 温室效应 二氧化碳 浮游植物 |
| 收稿时间： | 2006-01-06 |
| 修稿时间： | 2006-03-28 |
Distributions of chlorophyll a and carbon fixed strength of phyto-plankton in autumn of the southern Huanghai Sea waters |
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| ZHENG Guoxi,SONG Jinming,DAI Jicui,WANG Yiming.Distributions of chlorophyll a and carbon fixed strength of phyto-plankton in autumn of the southern Huanghai Sea waters[J].Acta Oceanologica Sinica,2006,25(3):68-81. |
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| Authors: | ZHENG Guoxi SONG Jinming DAI Jicui and WANG Yiming |
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| Institution: | 1.Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China;Graduate School, Chinese Academy of Sciences, Beijing 100039, China2.Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China3.Zhoushan Marine Eco-environmental Monitoring Station in Zhejiang Province, Zhoushan 316004, China |
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| Abstract: | Chlorophyll a (Chl a) concentration and primary productivity (PP), namely, carbon fixed strength of phytoplankton along four transects in the southern Huanghai Sea (SHS) were studied for their distribution features and controlling mechanisms based on the investigations from 17 October to 3 November 2005. The Chl a concentration in the study waters dynamically changed spatially.Surface Chl a concentrations ranged from 0.11 to 2.38 mg/m3 with higher and lower values observed in the nutrient-laden inshore waters and central part of the SHS occupied by oligotrophic current, respectively. The vertical distribution of Chl a concentration showed a predominant pattern of subsurface concentration maximum profile. It followed the previous result of the deep dissolved oxygen concentration maximum profile, which was significantly correlated with phytoplankton and regional water mass. The primapecially phosphate concentration in seawater and hydrological condition. Furthermore, associating the present study results together with previous studies, the annual value of carbon fixed production of phytoplankton in the entire marginal seas of East China(including the Bohai Sea, the Huanghai Sea and the East China Sea) was estimated to be 222 Mt, which accounted for 2% of that in the global margins. Besides, it was as 16.2 times as the annual value of apparent carbon sink strength ( 13.96 Mt) in the marginal seas of East China. This multiple was different in different sea areas (3.0 in the Bohai Sea, 6.7 in the Huanghai Sea and 81.6 in the East China Sea). |
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| Keywords: | chlorophyll a primary productivity carbon fixed strength southern Huanghai Sea |
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