Crown length refers to the length of the crown, that is, the straight line distance from the top of the trunk to the edge of the crown. The length of the crown can reflect the growth and health of trees.
Crown width refers to the width of the crown on the side, that is, the maximum distance on both sides of the crown. Crown width can also be used to describe the density and growth of trees.
Crown thickness usually refers to the thickness of the crown, that is, the vertical distance from the crown surface to the trunk. This index can be used to measure the growth density and health of trees.