北洛河流域水沙演变情势分析

Analysis of the conditions and trends of water and sediment change in Beiluohe River Basin

北洛河是典型的多沙河流,是渭河泥沙的主要来源之一。通过对北洛河流域干支流主要控制水文站径流泥沙资料的统计分析,论述了北洛河流域泥沙的来源和沿程分配、输沙量的年内分配和年际变化、径流量和输沙量的关系以及泥沙形成原因等。对研究北洛河流域的水土流失和泥沙输移规律、合理地开发和利用提供了科学依据。

Beiluohe Rive is a typical much sandy river, which is one of the major sources of sediment of Weihe River. The rainfall, runoff and sediment observed in main dominative hydrometric station were analyzed. The result revealed the characteristics of the sediment sources, distribution and annual change. Also the inner relationship between the sediment and runoff and the causes of sediment were discussed. Which was provided the scientific basis for soil and water erosion, sediment transport rule and rational development and utilization in Beiluohe Rive Basin.