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浑河是辽河重要支流,研究其径流变化特征,对做好区域水资源相关工作具有重要的参考意义。基于浑河流域上游大伙房水库站、中游沈阳站和下游邢家窝棚站的1962~2011年逐月实测径流资料,借助累积滤波器法、Mann-Kendall法、小波分析法、集中度和集中期等方法和指标研究了变化环境下浑河流域径流的年际、年内变化特征。结果表明,浑河流域径流存在阶段性特征,其中1962~1984年径流偏枯,1985~2011年径流偏丰;各站年径流变化主周期均为11年,第二周期均为5年,第三周期存在微小差别;径流年内集中度逐渐减小,各月分配的径流量趋于均匀;浑河流域各站年、非汛期径流量分别呈减少、增加变化,总体上,汛期各月径流量呈减少变化,非汛期各月径流多呈增加变化,这些变化有助于发展流域社会经济和保护河流生态系统的健康。
Hunhe River is an important tributary of Liaohe River and studying the characteristics of its runoff variation, which is of important reference significance for doing a good job in regional water resources related work. Based on the monthly measured runoff data of Dahuofang Reservoir Station, Shenyang Station in the middle reaches and Xingjiawo Shower Station in the upstream of Hunhe River Basin from 1962 to 2011, the cumulative runoff data were obtained using the method of Mann-Kendall, Mann-Kendall, wavelet analysis, concentration and concentration And other indicators and methods to study the variation characteristics of runoff in the Hunhe River Basin during the year and year. The results show that the runoff in the Hunhe River Basin has periodic characteristics, of which the runoff is rather wet in 1962 ~ 1984 and the runoff is abundant in 1985 ~ 2011. The main periods of annual runoff change in each station are 11 years, the second cycle is 5 years, and the third There was a slight difference in the period; runoff concentration decreased gradually during the year and the runoff volume distributed in each month tended to be even. The annual and non-flood runoff in the Hunhe River basin decreased and increased respectively. Generally speaking, Reduce the change, and the runoff in each month in the non-flood season showed increasing changes. These changes contributed to the development of the social economy of the river basin and the health of the river ecosystem.