Screening of Tree Species for Vegetation Restoration in Jiuzhaigou Earthquake-stricken Areas

Based on field investigation, the plants in Jiuzhaigou earthquake-stricken areas were analyzed and studied. In this paper, 8 kinds of tree seedling species and 8 kinds of shrub seedling species were selected for in-situ pot experiment, and the index such as seedling survival rate, height, soil moisture content, crown width (tree), coverage (shrub), canopy density (tree), soil total porosity, soil organic matter and soil enzyme activity and soil bacterial diversity were analyzed. The results showed that 5 dominant tree species including Picea purpurea, Betula albosinensis, Abies ernestii, Pinus tabuliformis and Acer laxiflorum, and 4 shrub species including Sorbus pohuashanensis, Fargesia denudata, Salix cupularis and Rosa moyesii, were screened for vegetation restoration. This study provides the foundation and basis for vegetation restoration in Jiuzhaigou earthquake-stricken areas.