1. Strengthen planning and design. Urban green space includes public green space, unit-affiliated green land, production green land, protective green land and scenic woodland. Each of them has different characteristics and functions. Therefore, green land is not a single plant cultivation, but is a multi-project. The embodiment of multi-sector and multi-discipline comprehensive construction management should be based on the different types and functions of the green space.
2. Adhere to the principle of suitable trees, mainly indigenous trees. For example, the greening of the road should be selected from the shade, fast-growing species, such as: Populus tomentosa, Farn-tung, Paulownia, Ailanthus altissima, Robinia pseudoacacia, etc.; residents The greening of the residential area should be dominated by varieties with high ornamental value, such as: Hehuan, Weeping Willow, Pentandra, Eucalyptus, etc. The street green space should be decorated with some foliage, view flower or view-shaped varieties according to different functional requirements.
3. To control the field seedlings, especially the southern seedlings. Due to the climate and environment, the seedlings planted in the south immediately after planting in the south have low survival rate and long seedling growth period. The tree species imported from overseas must undergo cultivation and domestication for at least one year. After the experiment, large-scale promotion of planting.
4. Grasp the phenological period of different tree species, timely planting. Spring thawing from the soil to the tree sprouting, that is, from early March to late April, about 45 days -50 days, are suitable for planting trees, but a few germination late, long leaf Difficult tree species, such as artichokes, white wax, crape myrtle, and falsity, have the highest survival rate when the buds will sprout.
5. Planting trees in the spring should avoid bogusing seedlings. After the fake seedlings are raised in the fall, they will be buried in the trenches and buried in the ground. After a winter, they will be planted in the spring of the spring. Practice has shown that the seedlings planted in spring are slow to plant. The survival rate is very low, generally about 30%, especially the budding tree species, the survival rate is lower.
6. Strictly afforested tree species specifications and standards. The specifications and standards of landscaping tree species directly affect the afforestation effect. Especially for street trees, the DBH should be in the range of 6 cm to 8 cm; the greening of the environment, the residential community and the planting of trees in the forest should also be 3 cm - 5 cm.
7. Strengthen the post-management. The so-called "three-point planting and seven-point planting" and strengthening the maintenance and management of the green land are the main means to improve the quality of landscaping. It has the characteristics of long-term and continuity, and must be assigned to special people for maintenance and management.
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