As for the number of days of survival and maintenance period, it depends on the contract. The maintenance period of the greening project is 2 years. The maintenance period is within two years. During this period, if dead seedlings appear, the construction party must make up for them in time. If the contract is for one year, then this year is the survival and maintenance period.

Keep-alive (survival) maintenance is collected normally (it is not calculated on a monthly basis during the construction period, it is calculated once, if the comprehensive unit price has been determined, it will not be calculated); the half-year maintenance period is also the maintenance maintenance (Daily maintenance) is calculated based on 6 months (if this fee is included in the comprehensive unit price of construction, it will not be calculated).

Extended information:

Pruning buds: After transplanting a tree, after heavy and intensive pruning, many buds and young buds will sprout on the trunk and branches, affecting the growth of the tree and affecting the growth of the tree. Therefore, you can use your hands to remove excess buds when they sprout in spring.

After pruning in winter, buds will sprout at the incisions of the branches in the second spring. After they are removed, they will prevent the main branches from becoming weak and the branches becoming cluttered and intertwined. In short, all branch buds below the fixed trunk should be removed before they become lignified, and useless buds above the fixed trunk should also be removed.

Pruning: Pruning refers to the short cutting of the branches or trunk of seedlings. Pruning should be carried out according to the tree shape and growth and development needs of the seedlings. It is necessary to cut off diseased and insect-infested branches, internal branches, competing branches, overly dense branches and budding tillers. The cutting edges must be smooth and not split or split. The cutting edges of overly thick branches must be smeared.

Plastic shaping: For trees with partial crowns or irregular tree shapes, you can remove the main branches or side branches that are too strong on one side and leave them smaller, or cut off the strong leading branches to make them grow outward. lateral branches instead.

If the branch on one side is missing and the crown is partial, you can use a rope to pull the branches on both sides to make up for the defect. For pine trees used as street trees, the branching points should be raised after the tree grows up. You can remove several main branches in a round one at a time, and then remove the remaining ones after the wounds have initially healed.

Baidu Encyclopedia - Preparation of garden project budget and bill of quantities

Baidu Encyclopedia - Greening Maintenance