春季东海北部近岸水体中的溶解无机碳和有机碳的分布特征及其影响因素

根据2010年4月在东海北部近岸的调查，分析了研究海域溶解无机碳（DIC）和溶解有机碳（DOC）的含量及其分布状况，并分别对DIC、DOC与温度、盐度、表观耗氧量等要素的关系进行了初步探讨。结果表明，春季研究海域表、底层DIC平均含量分别为24．54mg／L和25．03mg／L，平面分布趋势均为近岸高于远岸，象山口附近...

Dissolved inorganic and organic carbon in the North of East China Sea (ECS) coastal waters in spring

Concentrations and distributions of dissolved inorganic carbon (DIC) and organic carbon (DOC) as well as their relationships with temperature, salinity, and dissolved oxygen in the North of ECS Coastal Waters during April in 2010 were analyzed. The average concentrations of DIC in surface and bottom water of our study area were 24.54mg/L and 25.03mg/L, respectively. The average concentrations of DOC in surface and bottom water of our study area were 0.96mg/L and 0.87mg/L, respectively. The characteristics of distributions of DIC and DOC were both higher near the coastal line and lower in outer sea. There were high concentrations at northeast of the survey area because of inputs by Changjiang River. As to vertical distribution, the concentration of DIC in surface water was lower than that in bottom water, while the vertical distribution of DOC was contrary to that of DIC. Relationships between DIC and DOC, and their relationships with temperature, salinity, and AOU indicated that temperature was the main factor influencing DIC distribution, while terrestrial input and biological activities played important parts in distribution of DOC.