1. Tree pruning, tree species with obvious main axis, when pruning, protect the main branches to make them grow upright. If the original central branch is damaged, the top branch should be used to re-cultivate the main branch. Pay attention to shaping, pruning and weeding. Pay attention to pruning at a certain height, which can stimulate the hidden buds in the hidden epidermis to germinate, form young branches and rejuvenate.

2. The reasonable dry-to-shoot ratio should be adjusted year by year, and the height of branch points should be basically the same in the woodland with the same age and variety, and the trees located at the edge of the woodland can be slightly lower than the trees in the forest.

3. Coniferous forests should cut off the vertical branches at the base and increase the branching points with the growth of trees.

4. Pruning ginkgo can only be thinning branches, not cutting them short. The deep branches of the opposite wheel can be tapered in stages.

5. When there is a contradiction with the overhead line, the trees should be trimmed, and the crown within 30cm of the traffic intersection cannot block the line of sight. Branches near street lamps and transformer equipment should keep a sufficient safe distance from them.

6. Shrub pruning, the shape should be a tree with high inside and low outside, forming a naturally plump round head or semicircle.

7. Branchlets in shrubs should be properly pruned, strong branches should be properly pruned, and drooping weak branches should be thoroughly thinned.

8. Update old branches year by year and cultivate new branches.

9. Prune the overgrown branches outside the crown,

10. Those without ornamental value should be pruned as soon as possible, and patches should be planted in clumps, with high middle and low sides, or high front and low back.

1 1. Highlight the main varieties, and shape the shrubs with clear outline and tight branches and leaves at the outer edge.