黄土高原一般支流泥沙监测站网疏密度初步探讨

对自然条件和人为因素复杂的黄河多泥沙支流来讲,不同下垫面的水土流失（产流、产沙）情况差异甚大、泥沙监测站网的布设最主要的是必须控制不同的类型区。本文应用流量站网布设的“区域原则”及其梯度准则和内播精度准则对黄土高原几条支流的泥沙监测站网疏密情况进行了分析验算,结果表明：现有站网密度较稀,需增设监测站点方可满足要求;同时也证明了上述布部原则不仅适用于流量站网规划,也适用于水文泥沙监测站网的规划布设。

Preliminary Approach to the Station Density for Monitoring Sediment in General Tributaries in the Loess Plateau

The sediment monitoring network is mainly needed to control the different landform patterns in the Yellow River tributaries of high sediment-load with complicated natural conditions and social factors, and tremendously varied soil and water loss(runoff and sediment yield). The calculation and analysis have been taken in the paper through the application of "rigional principle"of flow monitoring network as well as its increment criterion and inner-insert precision criteri0n in a few tributaries of the Loess Plateau, and the results show that the existing monitoring network density is lower than that is needed, and at the same time it is proved that the mentioned principles are not only suitable for flow m0nitoring plan, but also applicable to hydraulic sediment monitoring network planning.