渤海现代物质通量研究

STUDY ON MODERN MATERIAL FLUX IN THE BOHAI SEA

本文从质量平衡的角度来探讨渤海现代物质通量．其物质输入途径包括；周边河流注入；大气沉降；渤海与北黄海物质交换．物质输出途径包括：海底沉积；二氧化碳排出；渤海与北黄海物质交换．结果表明，渤海年均沉积量在１２．３亿吨左右．受周边季节性河流的影响，渤海在夏、秋季汛期有较高的沉积速率，河流提供了绝大部分的入海物质；而冬季大气沉降和渤黄海交换是渤海不可忽视的物质来源之一。

In this paper, the modern material flux in the Bohai Sea is calculated based on its mass balance model. The material input processes include: river input, sunk from atmosphere, and exchange between the Bohai Sea and north Huanghai Sea. The material output processes include: sunk to sea floor, CO_2 gas output, and exchange between the Bohai Sea and north Huanghai Sea. Results show that the average sedimentary material amount in the Bohai Sea are approximately 1. 23× 10^(15) grams per year. Due to most of material in the Bohai Sea are supplied by the ephemeral rivers, the maximum material input occurs in Summer and Autumn while the minimum occurs in Winter and at that season the sunk from atmosphere and exchange between the Bohai Sea and north Huanghai Sea can not be negligible.