应用EMD方法对泾河张家山水文站1956~2005年还原径流系列进行多时间尺度分析,结果表明泾河年径流量具有复杂多时间尺度的周期性,其变化特性分别具有准2~4、准4~8和准11~13的周期。运用SPA方法研究泾河年径流量与EMD中基本模式分量IMF的关系表明,泾河年径流量与IMF分量的联系在短周期上仍以同一性为主,在中周期以对立性为主,在长周期以差异性为主。 The multi-time scale analysis of the runoff series from 1956 to 2005 in Zhangjiashan Hydrological Station of Jinghe River by EMD shows that the annual runoff of Jinghe River has periodicity with complex multi-time scales, and its variation characteristics are quasi 2 ~ 4, Quasi 4 to 8 and prospective 11 to 13 cycles. The study on the relationship between annual runoff of Jinghe River and IMF, a basic mode component of EMD, using SPA method shows that the relationship between annual runoff and IMF component of Jinghe River is dominated by identity in the short period and the opposite phase in the middle period, In the long cycle to the main differences.