Studies On Ecological Operation Of Reservoirs' Methods

The construction of water conservancy projects has all-around benefit including flood control, generating electricity, irrigation, shipping, water supply, and promotes the development of Economy and Society. It also plays a positive role in flood diversion and storage, resisting the impact of ecosystem from flood-waterlogging disaster, and improving the arid and semi-arid regions the situation.At the same time, the construction of water conservancy projects has also brought negative effects. In order to maximize water for generation, diversion power station causes water reduced and dehydrated river segments, which destructing the survival environment of aquatic organisms. Reservoir operation changes the natural hydrological regimes of rivers, which effecting the growth and reproduction of aquatic organisms. Due to the top support action from reservoir storage and the effect caused by regulation, water entrophication may apprears at reservoir area and segments of downstream.We can't ignore these problems. In order to reduce the impact of ecological from the construction of water conservancy projects, we should take effective methods, including change the reservoir regulation mode, set up ecological projects in new engineerings, and so on. The reasonable reservoir operation mode for the builted reservoir can reduce the adverse effects to the ecological environment. This paper studies on the reservoir ecological operation, main work was done as below:(1) Collect reasonabley related literature material at home and abroad, master the research progress and give the definition of ecological operation.(2) Describe the concept of reservoir operation, optimization algorithm and operation regulation, and select the reasonable methods and model for ecological operation.(3) Overview the studies carried out abroad, and consider the actural situation at home, and draw and sum up the reservoir ecological operation principles, methods and engineering measures.(4) Establish the conventional and optimization ecological operation model of reser- voirs for river ecological water demand and ecological flood simulation operation.(5) Apply the models and methods above to Danjiangkou Reservoir in Hanjiang basin, scheduling on the scale of the initial and final size of the Dam.