Relationship between quartz component and sediment concentration and calculation on the year occurrence number of wearing sediment concentration in Shantou Bay

Based on the analysis of measured data in Shantou Bay, Guangdong province, there is a good interrelation between quartz component and suspended sediment concentration. With the increasing of suspended sediment concentration, the percentage of quartz decreases, while the amount of quartz material increases. The reason for this phenomenon is the number of fine grain size sediment goes up quickly with sediment concentration increasing, which reduces the median grain size of suspended sediment. By setting up relational expressions of quartz to sediment conncentration and the rising rate and descending rate of water level to sediment concentration, the year occurrence number of wearing sediment concentration and characteristic values of quartz and suspended sediment concentration are calculated.