气候变暖背景下桓仁县蒸发量的变化及影响因素

利用桓仁县1953-2013年逐月蒸发皿蒸发量资料，基于气候变暖背景下，对桓仁县水面蒸发量的变化特征及影响蒸发变化的主要气候因子进行分析。结果表明：随着气候变暖，桓仁县的水面蒸发量呈减少趋势变化。从相关性分析来看，平均气温下降、降水量的增加、相对湿度和总云量增大、日照时数的减少、风速的下降，蒸发量将随之减少。蒸发量的变化不是简单的随着某要素的升高和降低而改变，它是气象要素综合影响的结果。

Changes and Influence Factors of Evaporation in Huanren County under Climate Warming

Based on the monthly pan evaporation data from 1953 to 2013 in Huanren County,the water sur?face evaporation variation characteristics and main climate factors of influence evaporation changes were an?alyzed. The results showed that water surface evaporation showed a decreasing trend with the climate warm?ing,from the correlation analysis,average temperatures,relative humidity and total cloud cover was increas?ing,precipitation,sunshine hours and wind speed was decreasing,evaporation would decrease. Evaporation variations didn’t simply change with the increasing and decreasing of certain elements,it was the compre?hensive effect of meteorological element results.