This paper analyzes on the riverbed evolution of the upper reaches mainstream of the Fenhe River, reviews the control situation of the stream channel, and analyzes on the main problems existing in the control starting from the embankment works and the roller-way project, and advances the tasks and principles of the control of the stream channel.

To analyze the climate change of Lianhua Reservoir upstream valley nearly 40 years,the annual precipitation shows a slight rising trend,the average temperature of the whole year shows a remarkable warming trend,and the annual potential evaporation shows a slight decreasing trend.

Construction technology for deep channel section of upstream separation levee of TGP;