Rehabilitating And Rebuilding For Alpine Meadow Ecosystem In Northwest Sichuan Province

Restoration Ecology is a front line field study on ecology and environment in the recent yeas and future all the world, and it has an important meaning for rehabilitating and rebuilding for degraded ecosystem. On the basis of the others' study, this paper chooses alpine meadow ecosystem in Northwest Sichuan province as a subject. It applies the theory of restoration ecology, especially the theory of disturbance and succession etc to the study on the cause and mechanism of ecological degradation in this area. It also investigates and analyses the current state, cause and the historical succession process of the biology diversity in the Shiqu county .The article relates local traditional ecological culture with the current environmental problem in the Shiqu county. It is an important meaning of the theory and realization to guide the local environment construction, protect the ecosystem balance and maintain the regional ecological security by studying the rehabilitating and rebuilding for alpine meadow ecosystem in Northwest Sichuan province.For alpine meadow ecosystem, the function of disintegrator is relatively faint, the validity of substance and energy is quite low, the wastage of substance and energy is rather large, the food link and food web is quite single, alpine meadow ecosystem is so fragile that it is very difficult to restore while it is subjected to destroy. The degradation of alpine meadow ecosystem in Shiqu conty is the result of the common action of the natural and man-made factor. The natural factor promotes alpine meadow ecosystem to slowly happen to converse succession, however, in the...