Effection of lake-saving on calculation of complex river systems

The article studies the Muskingum method,its advantages of the hydrodynamic models and the way to calculate the lake-saving.And a numerical model that can reflect effection of the lake-saving is established,which is validated by using the observed data of the Jingjiang River and the Dongting Lake in 1996 and 1997.The result indicates that the model is suitable to deal with lake-saving.At the end,the article studies the complexities of lake-saving in calculating complex river systems.