Study on Off-season Planting Technology of Large White Birch Trees in Bashang Alpine Region
This project is a key project in the core area of the Winter Olympics.According to the requirements of the construction peri-od,large birch trees need to be planted in anti-season planting,but the survival rate of off-season planting is low.In order to improve the survival rate,the method of hoarding seedlings in advance in normal season and transplanting out of season was selected.By pre-selection of seedlings during the dormant period and the planting of large birch trees in the alpine region of Bashang,we can improve the survival rate of birch and reduce the direct economic loss caused by death.The growth cycle of large-scale cluster birch is at least ten years,which reduces the mortality rate of birch,avoids the waste of ecological resources,ensures the landscape effect of the pro-ject,and also accumulates rich experience for similar projects.