| 引用本文: | 卢汐,宋金明,袁华茂,李宁,李学刚,段丽琴,曲宝晓.黑潮主流径海域海水中的无机碳及其对东海陆架区的影响.海洋与湖沼,2016,47(1):16-28. |
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| 黑潮主流径海域海水中的无机碳及其对东海陆架区的影响 |
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卢汐,宋金明,袁华茂,李宁,李学刚,段丽琴,曲宝晓
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中国科学院海洋研究所海洋生态与环境科学重点实验室 青岛; 中国科学院大学 北京,中国科学院海洋研究所海洋生态与环境科学重点实验室 青岛,中国科学院海洋研究所海洋生态与环境科学重点实验室 青岛,中国科学院海洋研究所海洋生态与环境科学重点实验室 青岛,中国科学院海洋研究所海洋生态与环境科学重点实验室 青岛,中国科学院海洋研究所海洋生态与环境科学重点实验室 青岛,中国科学院海洋研究所海洋生态与环境科学重点实验室 青岛
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| 摘要: |
| 基于2014年5-6月对黑潮主流径及毗邻东海陆架海区的调查,研究了该区域水体中无机碳体系参数(pH、总碱度TAlk、溶解无机碳DIC及DIC/TAlk)的垂直与水平分布,在此基础上定量评估了黑潮输入对东海陆架海区无机碳收支的影响。结果表明,黑潮水体中DIC、TAlk与DIC/TAlk总体而言随水深增加而升高,pH降低,综合体现了浮游植物生产、海-气界面交换、有机物降解及CaCO3溶解等过程的影响;上升流中心站位无机碳参数均受较深层水体上涌影响,与黑潮主流径其它站位略有不同。东海陆架海区外侧站位表层、30 m层无机碳主要受台湾海峡暖流影响,高pH、低DIC/TAlk的黑潮表层水影响区域局限于东南部;而在底层,低pH、高DIC/TAlk的黑潮入侵流离开黑潮主流径向正北方延伸并抬升至钱塘江口附近;上升流对无机碳的影响持续至表层,其携带的黑潮中层水因此也可能进入陆架海区。水量模型估算黑潮水在5-10月间跨域陆架边缘向东海陆架区输入溶解无机碳总计58798.9×109 mol,净输入达37382.9×109 mol,而东海向外输出的无机碳绝大部分经由对马海峡进入日本海。 |
| 关键词: 溶解无机碳 黑潮 东海 分布 影响 |
| DOI：10.11693/hyhz20150300089 |
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| 基金项目:中国科学院战略性先导科技专项项目,XDA11020102号;国家基金委山东省联合基金项目,U1406403号;青岛海洋国家实验室"鳌山人才"项目专项资助。 |
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| DISTRIBUTION OF INORGANIC CARBON PARAMETERS IN KUROSHIO AND ITS IMPACT ON ADJACENT EAST CHINA SEA SHELF |
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LU Xi,SONG Jin-Ming,YUAN Hua-Mao,LI Ning,LI Xue-Gang,DUAN Li-Qin and QU Bao-Xiao
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Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences; University of Chinese Academy of Sciences,Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences,Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences,Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences,Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences,Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences,Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences
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| Abstract: |
| Vertical and horizontal distributions of inorganic carbon parameters-pH, total alkalinity (TAlk), dissolved inorganic carbon (DIC) and ratio of DIC/TAlk-in the Kuroshio and adjacent East China Sea (ECS) shelf were investigated in spring, 2014. Generally, TAlk, DIC and DIC/TAlk increased while pH decreased with the increasing water depth in Kuroshio mainstream, indicating the impacts of biological production, air-sea exchanges, organic matters degradation, and CaCO3 dissolution. All parameters in Kuroshio Upwelling Water (KUW) were affected by upwelled deeper water. The influences of Kuroshio Surface Water in outer shelf (high in pH, low in DIC/TAlk) were restricted by Taiwan Current Warm Water in surface and 30 m layer, while the northward Kuroshio Branch Current to the North of Taiwan (low in pH, high in DIC/TAlk) predominated in the bottom of outer shelf area. KUW had influences even in surface layer, which may bring Kuroshio Intermediate Water into the shelf. Transport of DIC from Kuroshio to ECS in wet season (May-October) was calculated to be 58798.9×109 mol (net export: 37382.9×109 mol); most of DIC exported by outflowing ECS waters entered the Japan Sea via Tsushima Warm Current. |
| Key words: Dissolved Inorganic Carbon Kuroshio East China Sea distribution impact |
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