泥沙含量对盐液示踪法经验系数影响的研究

示踪法经验系数可能受坡度、水流速度、流量等多种因素的影响，该文经过流量法和盐液示踪法的实验结果比较发现：泥沙含量较低时，随流速增加而增大，泥沙含量较高，其值基本不变，但经验系数与速度的相关性都较差，而各种坡度下测量经验系数的平均值与泥沙含量具有较好的正相关性，泥沙含量是影响经验系数的主要因素。

Research of empirical coefficient of salt tracer method affected by sediment

The empirical coefficient may be affected by slope, flow velocity, discharge and other factors. Compared with the velocities measured by salt tracer and discharge method, the empirical coefficients increased with the velocity enhance in lower sediment concentration flow, vary little when the sediment concentration was high enough, but the correlation between the velocity and coefficient was not good enough. The mean coefficients in different slopes were right interrelated strictly to the sediment concentration, so the sediment concentration is the main factor affecting the coefficient of tracer flow.