中文摘要：

本文对国内外水面蒸发速率的研究进行了综述,总结了西藏扎布耶盐湖Φ20cm蒸发皿淡水蒸发量与气温、降水、日照的相关关系,提出了改进的扩展彭曼公式法,用于较为准确地计算盐湖卤水蒸发速率,并以西藏扎布耶盐湖为例计算了盐湖卤水蒸发。该方法可以应用于盐湖湖面蒸发与水量均衡计算,也可以应用于盐湖开发中的盐田工艺设计计算与实际生产应用。

英文摘要：

This paper gives a review of the methods of acquiring evaporation rates from large free water surfaces and summarizes the relations of the evaporation rate of fresh water from a Ф20 pan to air temperature, precipitation and solar irradiation. A modification is made of the conventional Penman evaporation equation to allow relative accurate calculations of the evaporation rates from saline lake brines. The evaporation rate from Zabuye Salt Lake on the Tibetan Plateau was calculated as a case study to illustrate the operation of the improved Penman equation. This method may be applied in the calculation of the saline lake surface evaporation and water balance and also in the technological design calculation of saltfields in saline lake development and practical production.