What does the crown mean?

Crown width refers to the average width of trees (seedlings) in the north-south and east-west directions, which is similar to the crown diameter and is usually used to indicate the specifications of trees and seedlings. Most of them are used by foreign and Hong Kong design companies. Crown width can also be expressed by w, and there is no unified symbol.

Objective: Crown width is a reference standard to measure the growth of seedlings. In landscape design, the crown width of seedlings is used to calculate the number of seedlings planted in each square.

Extended data:

Relationship between crown width and DBH

1, crown diameter-also known as crown diameter, refers to the diameter between the maximum amplitude of seedling crown cluster, which is often expressed by "P".

2. DBH-refers to the diameter of the trunk at 1.2m above the ground, often expressed as "φ".

3. The conversion relationship between DBH and crown width of trees and shrubs is:

The diameter of soil ball of trees is calculated as 8 times of DBH, and when DBH is difficult to calculate, it is calculated as 7 times of ground diameter; Diameter of soil ball of shrub or sub-tree (such as cluster osmanthus, etc.). ) is calculated as 65438+ 0/3 of its crown diameter.

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