关键词: 干旱区, 水面蒸发, 蒸发消减, 平原水库

Abstract: The intensive evaporation and scarce precipitation are the important factors that cause the water loss of the plain reservoir in the northwest arid and semiarid area. It severely limits the function of the reservoir and makes the water resources shortage situation more severe. Aiming at the technical problems of water surface evaporation reduction, we summarize four methods including spraying chemical reagent, planting aquatic plants, covering with physical material and wind-barrier according to the latest progress of experimental research at home and abroad. The problems in various technical methods are analyzed and discussed, and some suggestions are put forward for the future study on water surface evaporation reduction, which can provide references for the follow-up experimental research.

Key words: arid area；water surface evaporation；evaporation reduction , plain reservoir