The aim of the experiment is to reduce the large amount of ineffective evaporation in inland arid area plain reservoirs by using polystyrene foam plastic slabs floating on the water surface.

• 本文针对内陆干旱区平原水库水面无效蒸发量大的问题，提出用苯板漂浮水面的工程措施来防止蒸发损失，从而达到平原水库节水的目的。