Precautions for beautifying the environment What are the precautions for beautifying the environment?

1. Strengthen planning and design. Urban green space includes public green space, unit attached green space, production green space, protective green space and scenic forest land. They all have different characteristics and functions. Therefore, the garden green space is not a single plant planting, but a multi-engineering, multi-sectoral and multi-professional comprehensive construction management, which should be personalized according to the different types and functions of the garden green space.

2, adhere to the principle of suitable land and suitable trees, mainly native tree species. For example, road greening should choose fast-growing varieties such as Populus tomentosa, Fatong, Paulownia, Ailanthus altissima, Robinia pseudoacacia and Sophora japonica. The greening of residential areas should focus on varieties with high ornamental value, such as Albizia Albizia, weeping willows, pentagonal willows and Luan trees. According to different functional requirements, street green space should be equipped with some varieties for leaf viewing, flower viewing or shape viewing.

3. Control field seedlings, especially southern seedlings. Due to climate and environmental reasons, the survival rate of southern seedlings planted in the north is low and the slow seedling stage is long. Tree species introduced from other places must be cultivated and domesticated for at least one year, and then planted in a large area after observation and test.

4. Master the phenology of different tree species and plant them in time. In spring, it takes about 45 to 50 days from soil thawing to tree germination, that is, from early March to late April, which is suitable for planting trees. However, a few tree species that germinate late and have difficulty in growing leaves, such as Acacia, Fraxinus mandshurica, Lagerstroemia indica and Paulownia, have the highest survival rate when the buds are about to germinate.

5, planting trees in spring should avoid following seedlings. After sowing in autumn, bury the seedlings in ditches and pits. After a winter, they will be planted in the next spring. Practice has proved that the heel of seedlings is planted slowly in spring, and the survival rate is extremely low, generally around 30%, especially for cryptophytes.

6, strict greening tree species specifications and standards. The specifications and standards of landscaping tree species directly affect the greening effect, especially street trees, whose DBH should be 6 cm to 8 cm; The environment should be green, and trees in residential areas and forests should be planted three to five centimeters.

7. Strengthen post-management. The so-called "three plants and seven pipes" and strengthening the maintenance and management of garden green space are the main means to improve the quality of garden greening. It has the characteristics of long-term and continuity, and must be maintained and managed by designated personnel.