降水丰枯特性如何是分析降水过程的重要内容。本文以邯郸平原水资源分区为基本研究单元，运用小波分析法，就各分区降水丰枯性进行了多时间尺度分析；结果表明：邯郸市各平原分区降水过程都存在5年、9年左右为变化的主要周期，除了滏西平原外，其他平原区降水均还存在2年和13年的主周期变化，且漳卫河和黑龙港两平原区降水21年左右变化的主周期也较为明显；各分区降水在5年和9年主周期尺度上，均有明显的丰枯交替过程；不同分区降水在不同周期尺度的丰枯响应上存在一定的异质性并表现出不同的丰枯特性和演变趋势。上述成果可为区域旱涝预警和水资源管理提供可靠依据。

High/low precipitation characteristics are important content of precipitation process research. We conducted multi-time scale analysis on the high/low precipitation characteristics of each water resource zone on the Handan Plain using wavelet analysis. The research results showed that: (1) There is a 5 years’ or 9 years’ periodicity in the precipitation processes of all zones on the plain. There is also a 2 years’ or 13 years’ periodicity in the precipitation processes of all zones except for Fuxi Plain. A 21 years’ periodicity is also prominent in the precipitation processes of Zhangweihe and Heilonggang Plains. (2) The high/low precipitation alternation is prominent in all zones on the 5-year and 9-year scales. (3) The high/low precipitation responses of different zones vary on different time scales, and show varied high/low characteristics and evolution trend. The results can provide reference for the local water management and early warning of regional droughts and floods.

国家自然科学基金（51279207）；河北省教育厅科学研究计划重点项目（ZD2014020 & ZD 201443）