According to experience, the survival rate of Cinnamomum camphora transplantation in common trees in green belt is quite high. The construction of the subway is an important project for the convenience and benefit of the people, which cannot be rejected. Remove the original seedlings, one is to facilitate the construction, and the other is to protect the survival of seedlings. When removing Cinnamomum camphora, cutting off the crown is one of the best measures to maintain the vitality of trees. As far as I know, all the seedlings removed from the urban renewal project will be restored after the project is completed. Can not be restored, to plant not less than the previous greening rate of seedlings in new buildings. In order to ensure the survival rate of Cinnamomum camphora transplantation, aiming at the difficulty of transplanting in winter, the following technical links are mainly grasped: the most important thing in the planting process is to strengthen heat preservation measures, and in addition, the method of tree tray covering should be adopted. Tree tray mulching can increase ground temperature, prevent plants from freezing injury and improve planting survival rate. To sum up, camphor trees need to be transplanted in winter, and wintering protection measures must be taken; There are two key points: first, the trunk of camphor tree should be tied with straw rope inside and film outside to protect the trunk from wintering, but the film should be removed in time the next year, which will be very harmful once it is attacked by high temperature.

According to the climate characteristics of Zhoushan Island, the plastic film should be peeled off before May 20, and not later than early June, otherwise the trunk will be burned, the new shoots will stop growing, and the leaves will wither or even die due to the high temperature in the plastic film. Second, the last overwintering water after planting camphor trees in winter should be mastered, which is easy to dry prematurely. It's easy to catch cold if it's too late, so we should control the irrigation water accurately in the coming year. Prune Cinnamomum camphora properly before transplanting, so as to prevent branches and green leaves from continuously consuming a large amount of water, resulting in severe dehydration and death. The first is short cutting, that is, cutting off 3/5 of the new main branches regenerated from thick branches, and not leaving the inner branches alive; The second is leaf picking, in which about 1/3 of the total leaves are removed by the branches left after pruning.