近55年龙川县降水蒸发差的变化特征

Variation Characteristics of Difference between Precipitation and Evaporation over the Past 55 Years in Longchuan

利用龙川国家基本气象站1961—2015年降水蒸发差资料,应用线性趋势分析、Morlet小波分析等方法,分析龙川县近55 a来降水蒸发差的变化特征、变化周期及其影响因子,为龙川县农业生产、水资源调度、防旱减灾提供科学指引。

With the data of differences between precipitation and evaporation at a national basic weather station in Longchuan for1961-2015 and the techniques of linear trend analysis,wavelet analysis,the characteristics and cycle of variation and the impact factor of difference between precipitation and evaporation over the past 55 years in the county are analyzed,which provides scientific guidance for agricultural production,water resource scheduling and drought relief.