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

发布时间：2018-04-20 22:10

本文选题：溶解无机碳 + 黑潮　；参考：《海洋与湖沼》2016年01期

【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(p H、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,p H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Ca CO3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、30m层无机碳主要受台湾海峡暖流影响,高p H、低DIC/TAlk的黑潮表层水影响区域局限于东南部;而在底层,低p H、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58798.9×109mol,净输入达37382.9×109mol,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。
[Abstract]:Based on the investigation of Kuroshio mainstream diameter and adjacent East China Sea shelf area in May-June 2014, the vertical and horizontal distributions of inorganic carbon system parameters such as pH, total alkalinity, dissolved inorganic carbon (DIC) and dissolved inorganic carbon (DIC) in the waters of the region were studied. On this basis, the effect of Kuroshio input on inorganic carbon budget in the East China Sea shelf was quantitatively evaluated. The results showed that DIC-TAlk and DIC/TAlk decreased with the increase of water depth, which reflected the effects of phytoplankton production, air-sea interface exchange, degradation of organic matter and dissolution of Ca CO3. Inorganic carbon parameters of upwelling center are affected by the upwelling of deeper water body, which is slightly different from other stations with Kuroshio mainstream diameter. The 30m layer of inorganic carbon is mainly affected by the warm current in the Taiwan Strait, and the Kuroshio surface water with high pH and low DIC/TAlk is confined to the southeast, while the bottom layer is located at the bottom. The Kuroshio intrusion current with low pH and high DIC/TAlk extends northward from the Kuroshio mainstream and rises to the Qiantang River Estuary, and the effect of upwelling on inorganic carbon continues to the surface layer, so the Kuroshio middle water may also enter the continental shelf sea. The Kuroshio model estimates that the Kuroshio inputted dissolved inorganic carbon into the East China Sea shelf in May and October, with a total of 58798.9 脳 10 9 mols and a net input of 37382.9 脳 10 9 mol, while most of the inorganic carbon exported from the East China Sea enters the Sea of Japan through the Strait of Japan.
【作者单位】：中国科学院海洋研究所海洋生态与环境科学重点实验室;中国科学院大学;青岛海洋国家实验室海洋生态与环境科学功能实验室;
【基金】：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
【分类号】：P734.2

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