渤海沉积物-海水界面附近磷与硅的生物地球化学循环模式  

BIOGEOCHEMICAL CYCLING MODELS OF P AND Si NEAR THE SEDIMENT-SEAWATER IN BOHAI SEA

作　　者：宋金明[1] 罗延馨[1] 李鹏程[1] 

机构地区：[1]中国科学院海洋研究所,青岛266071

出　　处：《海洋科学》2000年第12期30-32,共3页Marine Sciences

基　　金：国家自然科学基金资助项目49776300号;国家杰出青年科学基金资助项目49925614号

摘　　要：现场模拟了渤海沉积物 海水界面磷、硅的交换通量 ,在此基础上提出了渤海磷、硅的生物地球化学循环模式 ,渤海的磷、硅主要来源于河流的输入和沉积物向海水的扩散提供 ,输出则是主要通过向黄海输送。计算结果表明 ,渤海每年沉积物向海水提供的磷、硅分别为10.2×106 和190.6×106 kg,分别占渤海磷、硅循环总量的86.4 %和31.7 %。说明沉积物 海水界面过程在渤海磷、硅循环中所起的作用是巨大的。On the basis of the fluxes of P and Si across the sediment seawater interface by simulated experiments in situs, the biogechemical cycling models of P and Si were presented. P and Si in Bohai Sea are mainly supplied by riverine input and diffusion from sediment to seawater, and their removal path is the output toward the Yellow Sea. The estimated conclusions showed that the diffusion fluxes of P and Si from sediment to seawater were 10.2×10 6 and 190.6×10 6 kg/a, accounting for 86.4% and 31.7% of the total cycling P and Si, respectively. Therefore, the sedment seawater interface process is important part in the biogeochemical cycling of P and Si in Bohai Sea.

关 键 词：沉积物-海水界面过程 磷与硅的生物地球化学循环模式 渤海 

分 类 号：P736.21[天文地球—海洋地质]