新疆干旱区平原水库浮板覆盖下节水效率浅析

Analysis of Water-saving Efficiency Under Floating Slab Covering of Plain Reservoir in Arid Area of Xinjiang

新疆干旱区水资源短缺问题日益突出,如何高效利用有限的水资源是一个亟待解决的问题。干旱区平原水库蒸发强烈,采用物理覆盖技术来抑制平原水库的无效蒸发,可节约更多水资源。浮板覆盖作为防蒸发的重要方法之一,有着独特的特点和意义。通过水库现场试验,浮板覆盖水面有效抑制了水面的蒸发。结果表明:在覆盖面积25%、50%与75%的条件下,蒸发抑制率分别提高了20.6%、38.3%与56.6%。

The shortage of water resources in the arid areas of Xinjiang has become increasingly prominent,and how to efficiently use the limited water resources is an urgent problem to be solved.In arid areas,plain reservoirs have strong evaporation,using physical covering technology to suppress ineffective evaporation of plain reservoirs can save more water resources.Floating plate cover as an important anti-evaporation method,has unique characteristics and significance.Through the field test of the reservoir,the floating plate covering the water surface effectively inhibits the evaporation of the water surface.The results showed that:under the conditions of 25%,50%and 75%coverage,the evaporation inhibition rate increased by 20.6%,38.3%and 56.6%,respectively.