| 摘要: |
| 根据1990年5—6月在南沙海域4个站点投放颗粒物捕集器采集样品的分析结果，计算了该海域上层海水碳垂直通量。结果表明：（1）南沙海域上层海水颗粒有机碳总生成量为298 mg/(m2?d)，其中35％分解参与再循环，65％以颗粒形式离开真光层向下输送；（2）颗粒有机碳向下通量为193 mg/(m2?d)，总溶解无机碳穿过跃层向上垂直通量为3600 mg/(m2?d)，真光层颗粒无机碳向下通量为27 mg/(m2?d)，大气进入海洋的海气界面二氧化碳通量为13 mg/(m2?d)。 |
| 关键词: 海洋 碳 垂直通量 |
| DOI： |
| 分类号: |
| 基金项目:国家专项南沙群岛海域综合考察陈果 |
附件 |
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| THE VERTICAL CARBON FLUX OF EPIPELAGIC WATER IN THE NANSHA AREA OF THE SOUTH CHINA SEA |
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Han Wuying1, Wang Mingbiao2, Wang Hankui1
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1.South China Sea Institute of Oceanology, Academia Sinica, Cuangzhou 510301;2.South China Sea Administration, SOA, Guangzhou 510300
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| Abstract: |
| The downward flux of particulate organic carbon (DPOC) and particulate organic nitrogen (DPON) in the upper 80 m of the water column was measured using sediment traps at four sites in the Nansha Islands area of the South China Sea in May - June 1990. The total production of DPOC in the euphotic layer was 298 mg/(m2?d), of which 35% was decomposed and recycled and 65% was particulate form transported downward to the deeper layer. The upward flux of total dissolved inorganic carbon passing through the thermocline was 3 600 mg/(m2?d), the downward flux of DPOC was 193 mg/(m2?d), the downward flux of particulate inorganic carbon in the euphotic layer was 27 mg/(m2?d), and the carbon dioxide flux across the air-sea interface into the Ocean was 13 mg/(m2?d). |
| Key words: Ocean, Carbon, Vertical flux |
