以新疆塔中气象站2013年逐日气象观测资料为例，采用主成分与聚类分析方法对研究区冰期与非冰期水面蒸发影响因素进行分类与机理阐述。结果表明主成分与聚类分析的水面蒸发影响因素分类结果完全一致，据此认为在不同冰期情况下，温度都是影响水面蒸发的主要因素。%Water surface evaporation is an important factor in the water balance calculation, which also has an important in-fluence on regional water resources allocation and development of crop irrigation system. The paper takes daily meteorologi-cal data of Tazhong Meteorological Station in 2013 as an example, the principal component analysis and cluster analysis method are used to classify the influencing factors of glacial and non-glacial period, and from the mechanism of classifica-tion index carries on the elaboration. The results showed that:the temperature was the main factors affected water surface e-vaporation during the different periods. The main factors were the same as the effect factors of water surface evaporation in the cluster analysis and principal component analysis. The results provide a reference for the mechanism of water evapora-tion in arid desert area.
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