The Ecological Impact Assessment Of Baoxing And Minzhi Hydroelectric Power Station

Baoxing and Mingzhi hydroelectric power stations are located in the east valley of Baoxing. They are in the second stage of the whole project of hydroelectric power station of Baoxing Valley. They are middle stations and developed by the water introduction. The ecological effect assessment is an important part of the whole project, for the project may affect the protection areas and the areas that are the source of the water.To fulfill the construction of the Baoxing and Mingzhi hydroelectric power stations, some temporary constructions, such as roads, sediment ground, material ground and working places, and some permanent constructions will be built. After the dam has been built, areas that are submerged or lack of water will emerge. Thus, this project has effects on this area. It will first affect the local ecological system through its effects on the plants, soil and the formation of the soil usage and its later effects on the ecological integrality of the natural ecological system. And then, the project will flood some forest and bring on the loss of some water and soil and the loss of the living places of the wild plants and animals. Moreover, the migration of people is one of sensitive problems in ecology, because migration will also bring about the change of the soil usage formation and the loss of the soil and water. Especially, Baoxing is located in the protection area of biodiversity-Qionglai Mountains, where many rare plants and animals such as the great panda and niulinng inhabit there. The first great panda specimen was founded and named in thebranch of Baoxing River, Dengchi Valley. Other countries pay a lot attention to the biodiversity of this area.Based on the history materials and the field investigation, the description and assessment was made, of the current situation of the natural environment, the land ecological system, the landscape ecology and sensitive ecological problems of this area. Many methods were used including the landscape ecology assessment, ecology mapping and bio-production assessment. All this is based on the ecological theory. And also, the possible side effects on the ecological environment of this project were predicted and some protection measure was put forward according to the feature of the project and the ecological environment of this area. Some basic investigation data were provided for the environment protection of this area and the possible effects on the local ecology was predicted. All the work provides the operational advice for the configuration of the construction, the choice of substitutive measures and the later ecological recovery.The research shows that: 1, high biodiversity exists in the affected area and the plant diversity is much higher than animal diversity. The bird diversity is the highest and the mammal diversity is lower than that. 2, the ecological environment is good and this project will not result in the unrecoverable effects if the project is in strict control. 3, Fengtongzhai national conservation and the protected animals have little chance to be influenced by the project. 4, the construction of the hydroelectric power will interfere the various parts of the ecosystem to some extent. So, the administration and the supervision must be strict and the ecology recovery must be carried on.