夏季环渤海主要入海河流溶解无机碳分布及入海通量估算

河口是连接陆地和海洋的关键通道，每年地表径流通过河口向陆架边缘海输入大量溶解无机碳，导致其碳源汇格局发生改变。本文分析了渤海夏季28条入海河流关键碳循环参数分布特征，估算了主要入海河流夏季溶解无机碳直接输入通量，莱州湾、辽东湾及渤海湾的溶解无机碳直接输入通量分别为0.66 TgC、0.44 TgC、0.17 TgC，直接汇入莱州湾的溶解无机碳通量超过50%，主要贡献来自黄河，另外，汇入辽东湾的大辽河及双台子河贡献了渤海河流溶解无机碳直接输入通量的20%。

Distribution and flux estimation of dissolved inorganic carbon in main rivers around Bohai Sea in summer

The estuary is a key channel linking land and sea. Each year, a large amount of dissolved inorganic carbon is input into the marginal continental shelf seas through the estuary. It leads to the change of carbon source and sink pattern. In this paper, the distribution characteristics of the key carbon cycle parameters of 28 rivers around Bohai Sea in summer are plotted, and the direct input fluxes of dissolved inorganic carbon of the main rivers entering the Bohai Sea in summer are estimated. The direct input fluxes of dissolved inorganic carbon of Laizhou Bay, Liaodong Bay and Bohai Bay are 0.66 TgC、0.44 TgC、0.17 TgC. Yellow river contributes majority dissolved inorganic carbon fluxes into Laizhou Bay, which accounts for more than 50% of the total dissolved inorganic carbon fluxes into the Bohai Sea. Furthermore, Daliao river and Shuangtaizi river contribute 20% of the dissolved inorganic carbon fluxes.