河渠种树水流特性试验研究

Experimental Study about Hydrodynamic Behavior of Channal Vegetation

河渠或沟道植树是利用生物措施来治理泥沙的一种有效方法 ,河渠或沟道植树又称为植物“柔性坝”。本研究通过室内水槽模型试验 ,探讨了植物“柔性坝”的布置方式、种植密度对河渠水流的影响。由实验得出 ,植物“柔性坝”可以起到阻缓水流、拦截泥沙的作用 ,并且植物“柔性坝”的种植密度和坝长不同 ,阻水作用亦不同。试验表明 。

Biological measure is an effective way to control soil a nd water loss, which has been proved at Huang He River Valley. It depends on nat ural measure to improve itself. By the indoor flume experiment, Vegetation Flexi ble Dam can retard water-flow and intercept sediment, more over, Flexible Dam's layout, its density and its length are the factors to effect water-flow retard ation of river canalization. Experiment also showed that length of flexible dem has more effect on water-flow retardation than planting density.