How to calculate the diameter of a tree's soil ball
In landscaping, seedling transplantation and other work, the calculation of the diameter of the tree's soil ball is a very important link. The correct soil ball diameter ensures tree survival and growth quality. This article will introduce in detail how to calculate the soil ball diameter of trees, and attach relevant data tables for readers' reference.
1. Basic concept of tree soil ball diameter
Tree soil ball diameter refers to the diameter of the soil ball carried by the roots when the tree is transplanted. The size of the soil ball directly affects the survival rate of the tree and its growth after transplantation. Generally speaking, the calculation of soil ball diameter needs to be determined based on factors such as the diameter at breast height and height of the tree.
2. Calculation method of tree soil ball diameter
1.Calculated based on breast diameter: The soil ball diameter of a tree is usually 6-8 times the diameter at breast height. Diameter at breast height refers to the trunk diameter of a tree 1.3 meters above the ground.
2.Calculated based on tree height: For some specific tree species, the soil ball diameter can also be calculated based on the tree height, which is generally 1/3-1/2 of the tree height.
3.Comprehensive calculation method: Combined with the diameter at breast height and tree height, the weighted average method is used to calculate the diameter of the soil ball to ensure the survival rate after transplantation.
3. Reference data of tree soil ball diameter
| Diameter at breast height (cm) | Soil ball diameter (cm) | Soil ball height (cm) |
|---|---|---|
| 5 | 30-40 | 20-30 |
| 10 | 60-80 | 40-50 |
| 15 | 90-120 | 60-70 |
| 20 | 120-160 | 80-100 |
4. Precautions for soil ball diameter of trees
1.Differences in tree species: Different tree species have different root distribution and growth habits, and the calculation of soil ball diameter needs to be adjusted according to the specific tree species.
2.seasonal factors: When transplanting in summer, due to the large evaporation, the diameter of the soil ball should be appropriately increased; in winter, it can be appropriately reduced.
3.soil conditions: For trees in loose soil, the diameter of the soil ball should be appropriately increased; for heavy clay soil, the diameter can be appropriately reduced.
4.Shipping conditions: During long-distance transportation, the diameter of the soil ball should be appropriately increased and packaged for protection.
5. Practical application cases of tree soil ball diameter
The following is a practical application case for reference:
| tree species | Diameter at breast height (cm) | Tree height (m) | Soil ball diameter (cm) |
|---|---|---|---|
| Ginkgo | 15 | 6 | 100 |
| Camphor | 20 | 8 | 140 |
| plane tree | 25 | 10 | 180 |
6. Summary
The calculation of tree soil ball diameter is a key link in tree transplantation. The correct calculation method and reasonable soil ball size can significantly improve the survival rate of trees. This article introduces the method of calculating the soil ball diameter based on factors such as breast diameter and tree height, and provides reference data and practical cases. I hope it will be helpful to readers.
In actual work, it is necessary to flexibly adjust based on tree species characteristics, season, soil conditions and other factors to ensure the optimal transplantation effect.
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