A Preliminary Research on the After-earthquake Succession of the Vegetation in Longxi-Hongkou National Nature Reserve

The succession of vegetation in the landslide was regularly monitored in spring and autumn per year by aclopting the method of 20 m×20 m quadrat and four types of matrix. The results which were collected in five years showed that (1) in three types of landslides, plants recovered faster with 80% coverage or higher; but in the other, its plant recovered slowly with about 10% coverage. (2) The pioneer shrub species in landslides were Buddleja davidii,Rubus setchuenensis,Rubus,Litsea,Hydrangea and so on while the herbaceous ones were fern, Impatiens, Anaphalis, Pilea, etc.. (3) The recovered dominant species in the quadrat naturally changed after the first three years,from Buddleja davidii to Rubus setchuenensis and Rubus.