| 2016年夏季黄、渤海颗粒有机碳的分布特征及影响因素 |
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| 引用本文： | 王雪景,金春洁,王丽莎,张传松.2016年夏季黄、渤海颗粒有机碳的分布特征及影响因素[J].海洋学报,2018,40(10):200-208. |
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| 作者姓名： | 王雪景 金春洁 王丽莎 张传松 |
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| 作者单位： | 中国海洋大学 化学化工学院, 山东 青岛 266100;中国海洋大学 海洋化学理论与技术教育部重点实验室, 山东 青岛 266100 |
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| 基金项目： | 渤黄海海洋动力环境和生态环境调查（2012FY112200）。 |
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| 摘 要： | 本文根据2016年6-7月黄、渤海航次获得的调查数据，分析了黄、渤海海域颗粒有机碳（POC）的浓度变化、空间分布特征并结合盐度、叶绿素a、POC/PON、POC/Chl a平面分布特征和相关性分析，探讨了黄、渤海海域POC的来源和影响因素。结果表明:2016年夏季渤海海域POC平均浓度（500.2±226.5）μg/L，北黄海POC平均浓度（358.2±101.5）μg/L，南黄海POC平均浓度（321.0±158.1）μg/L，渤海海域POC浓度高于黄海，整个海域POC浓度表层高于底层。POC的平面分布特征为近岸高，外海低。调查海域表层POC/PON均值为8.89，POC/Chl a均值为182.52；中层POC/PON均值为8.87，POC/Chl a均值为179.56；底层POC/PON均值为9.41，POC/Chl a均值为178.80。黄海海域浒苔衰败对POC/PON与POC/Chl a影响较大。相关性分析结果表明渤海海域盐度、总悬浮物和叶绿素a与POC存在显著的相关性，是影响POC分布的主要控制因素。南黄海除表层POC浓度与盐度、总悬浮物和叶绿素a浓度有很好的相关性外，中层和底层POC浓度与盐度、总悬浮物和叶绿素a浓度不存在显著的相关性。渤海海域POC主要受陆源和浮游植物共同影响，浮游植物是POC的主要贡献者，而黄海海域POC受长江冲淡水、黄海暖流、苏北沿岸流、生物活动和底层沉积物等多种因素影响，其中苏北近岸和青岛外海，有机碎屑为POC的主要贡献者。
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| 关 键 词： | 颗粒有机碳 黄海 渤海 相关性分析 碳氮比 |
| 收稿时间： | 2018/4/30 0:00:00 |
| 修稿时间： | 2018/6/19 0:00:00 |
Distribution characteristics and influencing factors of particulate organic carbon in the Yellow Sea and the Bohai Sea in summer of 2016 |
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| Wang Xuejing,Jin Chunjie,Wang Lisha and Zhang Chuansong.Distribution characteristics and influencing factors of particulate organic carbon in the Yellow Sea and the Bohai Sea in summer of 2016[J].Acta Oceanologica Sinica (in Chinese),2018,40(10):200-208. |
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| Authors: | Wang Xuejing Jin Chunjie Wang Lisha and Zhang Chuansong |
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| Institution: | College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266100, China;Key Laboratory of Marine Chemistry Theory and Technology/Ministry of Education, Ocean University of China, Qingdao 266100, China |
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| Abstract: | Based on the date of cruises that carried out in the Yellow Sea and the Bohai Sea during the summer of 2016. The concentration and special distribution of particulate organic carbon (POC) were analyzed and combined with the distribution of salinity, chlorophyll and POC/PON, POC/Chl a the source of POC were analyzed. Results showed that the average concentration of POC in the Bohai Sea, the North Yellow Sea and the South Yellow Sea were (500.2±226.5)μg/L, (358.2±101.5)μg/L, (321.0±158.1)μg/L,respectively. The concentration of POC in the Bohai Sea was higher than that in the Yellow Sea. The highest POC concentration was in the coastal zones and it tended to decrease toward the far shore on the whole. POC/PON was 8.89,POC/Chl a was 182.52 in the surface layer, POC/PON was 8.87, POC/Chl a was 179.56 in the middle layer, POC/PON was 9.41, POC/Chl a was 178.80 in the bottom layer. The high value of POC/PON and POC/Chl a had a certain relationship with the rotten of Enteromorpha prolifera. The result of correlation analysis showed salinity, total suspended matter and Chl a had a significant relationship with POC in the Bohai Sea which were the main factors influencing the distribution of POC in the Bohai Sea. In addition to the surface POC in the South Yellow Sea, there is no significant correlation between POC and salinity, total suspended matter, chlorophyll in other layers. POC in the Bohai Sea was mainly influenced by terrestrial and phytoplankton. POC in the Yellow Sea was influenced by various factors such as Changjiang Diluted Water, Yellow Sea warm current, Subei coastal current, biological and sediments. Organic debris were the main source of POC in coastal of Jiangsu and Qingdao near shore. |
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| Keywords: | particulate organic carbon Yellow Sea Bohai Sea correlation analysis C/N |
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