The general greening of construction takes place at spring and autumn festivals, and in some exceptional cases, in order to catch up and see the greening effect as soon as possible, it is required to work beyond the limits of the season, mainly in the summer and winter seasons. In order to ensure the survival rate of tree planting, the following five aspects should be addressed。
I. Selection of trees
First, the varieties of anti-season construction are selected, and it is understood that not all trees are suitable for counter-season construction. When selected, in addition to specifications that meet the design requirements, preference is given to strong, well-growing trees. In addition, earthballs are larger than usual and the more complete the roots, the easier they are to live, the less they can afford to be naked, the more they can be contained or the more transplanted trees。
Ii. Pre-transport trimmed
Pre-transport shearing can reduce the evaporation of tree canopy and, to some extent, increase the rate of tree activity. In general, one third to one half of all leaves are to be cut off, while the dead branch and the sick branch are to be cut, so that the trees at the top do not be cut off. Moreover, the roots of the naked seedlings are short-lived in order to give them the root roots。
Transport
Treatment on the transport chain is also critical for the displacement of trees. If the trees are imported, only the distance of transport varies; in the case of long-distance transport, bare seedlings are treated with root mud and packaged with wet grass. In the car, the tree is to be crowned and tilted towards the back of the car, bearing in mind that at the point of contact between the tree and the gang, it is to be covered with soft material to prevent the bark from being worn。
Cultivation
Anti-season construction is carried out in a timely and rational manner. Before the seedlings arrive, the ground will be made well and the pits will be dug well, preferably along with the planting, before the planting of the seedlings will take place, and it will be fabricated in time for shade treatment. The planting pit should be larger than conventional, before filling the bottom with good soil with glyphs, and the seedlings should be held up in the pit, filled back with the soil and solidified, and watered around the seedlings. I'm going to plant it and then i'm going to trim it. The next step is to water it, so that it can be watered, so that it can be watered, so that it can be watered once。
V. Post-plant management
The last part is management. The most important management aspect of counter-season construction is watering, which usually follows "three water" to determine life. The surface and tree canopy are often sprayed to increase air moisture。
In hot summers, trees should also be properly shaded. In the harsh winter of the north, ground-based grass or earth cover, wind barriers on the side of trees, etc., should also be used to wrap up the main trunk with straw or straw ropes, at a height of not less than 1. 5 metres, or limewater should be used to paint the main dry to reduce the exposure of the tree body to external temperature variability and avoid the death of tree stem cracks。
In conclusion: in short, garden greening trees are built in an irregular season at a lower rate than the normal season and at a higher cost and should be used as little as possible. If needed, technical barriers must be strictly put in place to increase the rate of survival so that it can play a greater role in greening urban parks。
