4　Feasibility Analysis of Water Diversion Project from the Yangtze River to Chang Lake

A routine water quality monitoring station was set up near the port where water was transferred from the Yangtze River to the Hanjiang River.Monitoring data of CODMn,ammonia and total phosphorus from year 2006 to 2015 were employed and analyzed.The results shown water quality of Yangtze River measured up to the third level of Environmental quality standards for surface water(GB 3838—2002),which was superior to the water quality of Chang Lake,which indicated that water connection between the Yangtze River and Chang Lake can improve the hydrodynamic characteristics,furthermore,it can also improve the water quality of Chang Lake.