Rivers, as an important part of rural water environment, plays a significant role in improving the rural ecological patterns, daily lives and production spaces, and orchestrating the development of the urban and rural regions. To achieve multi objectives, the regulating idea out of coupling concept has been proposed to elaborate which the case Laodao River, reach in Changsha County is going to be taken with expounding the realization of the coordinated renovation upon the four aspects: flood control system, water conservancy facilities, ecol...