辽宁省主要河流水文极值演变规律研究

Study on Evolution Law of Hydrological Extremes of Main Rivers in Liaoning Province

水文极值(洪水、断流)不仅关系到区域社会经济发展,对河道形态结构及河流生态系统也有重要影响。随着气候变化及人类活动的逐渐增强,河流水文极值特征发生显著改变。研究选取辽河、浑河、太子河、大凌河、小凌河、爱河为代表,系统识别辽宁省主要河流水文极值变化特征。结果表明:辽宁省洪峰流量整体呈下降趋势;除东南部地区河流未观测到断流外,其余各地区断流现象均呈增加趋势。研究成果可对辽宁省河流治理提供参考。

The extreme value of Hydrology(flood, cut off) is not only related to the development of regional social economy, but also to the river morphology, structure and river ecosystem. With the gradual increase of climate change and human activities, the extreme characteristics of river hydrology have changed significantly. Study on the selection of the Liao River, Hun River and Taizi River, Daling River, Xiaoling River, in love as the representative, change characteristics of hydrological extreme main river system in Liaoning province recognition. The results show that the peak discharge of Liaoning province shows a downward trend as a whole. Except for the rivers in the southeast of China, the phenomenon of stopping flow is increasing in the rest of the river. The research results can provide reference for river control in Liaoning province.