中文摘要：

蒸发，是处于在盆规模的水平衡的一个重要因素，是在本地可得到的水资源的决心的一个批评变量。因为潜在的蒸发被气象学的变量主要影响，调查不同气象学的变量影响潜在的蒸发到的程度是必要的。这研究的目的是在潜在的蒸发上探索不同气象学的变量，和他们的影响的变化趋势。这研究选择了 Hailar Hailar 区域的气象学的车站，位于感冒，半干旱，并且亚 humid 区域，一个案例研究地点。从 1951 ～ 2009 基于观察每天气象学的数据，潜在的蒸发与气象学的变量的作家公式，和变化被计算与 nonparametric Mann-Kendall 测试被调查。在在年度、季节的规模的潜在的蒸发和各气象学的变量之间的关联也被分析。而风速度，阳光持续时间，和相对湿度介绍减少的趋势，结果证明年度、季节的潜在的蒸发和空气温度介绍增加的趋势。在气象学的变量之中，空气温度和相对湿度是在潜在的蒸发上在另外的气象学的变量的不同时间规模，和影响影响潜在的蒸发的关键因素不是重要的并且与时间规模变化。

英文摘要：

Evaporation, which is an important factor in the water balance at the basin scale, is a critical variable in the determination of local available water resources. Since the potential evaporation is mainly influenced by meteorological variables, it is necessary to investigate the extent to which different meteorological variables affect the potential evaporation. The aim of this study was to explore the variation trends of different meteorological variables, and their impacts on the potential evaporation. This study selected the Hailar Meteorological Station of the Hailar region, which is situated in a cold, semi-arid, and sub-humid region, as a case study site. Based on observed daily meteorological data from 1951 to 2009, the potential evaporation was calculated with the Penman formula, and the variations of meteorological variables were investigated with the nonparametric Mann-Kendall test. The correlation between the potential evaporation and each meteorological variable at annual and seasonal scales was also analyzed. The results show that the annual and seasonal potential evaporation and air temperature present increasing trends, whereas the wind speed, sunshine duration, and relative humidity present decreasing trends. Among the meteorological variables, the air temperature and relative humidity are the key factors that affect potential evaporation at different time scales, and the impacts of other meteorological variables on the potential evaporation are not significant and vary with time scales.