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基于焉耆盆地清水河1956—2010年径流量实测资料,采用小波分析法,分析了清水河平均径流量季节变化规律。研究结果表明:清水河春季、夏季、秋季、冬季平均径流量分别为4.38,24.98,11.98,5.11m3/s。清水河四季平均径流量变化趋势有较大的差别;清水河四季平均径流量的年际变化过程中存在着多重时间尺度上的复杂嵌套结构,在不同的尺度周期中,表现出不同的丰、枯振荡规律,总体表现为由小尺度无明显规律的剧烈振荡向大尺度有明显规律的振荡变化;1956—2010年四季平均径流量变化周期总体上呈现15~22a大尺度的变化周期以及7~12,4~5a小尺度的变化周期。
Based on the measured data of runoff in Qingshui River from 1956 to 2010 in Yanqi Basin, the seasonal variation of average runoff of Qingshui River was analyzed by wavelet analysis. The results show that the average runoff of Qingshui River in spring, summer, autumn and winter are 4.38, 24.98, 11.98 and 5.11m3 / s, respectively. Qinghai River has a big difference in the average runoff in four seasons. The interannual variation of average runoff in Qingshuihe River has complex time-scale nested structure, and shows different abundance in different scales and cycles , The phenomenon of dry oscillation, the overall performance from a small scale without obvious regularity of large-scale oscillations to significant changes in the law of oscillation; 1956-2010 four-season average runoff change period overall 15 ~ 22a large scale variation period and 7 ~ 12,4 ~ 5a small scale change cycle.