What's the point of transplanting a big tree, cultivating a thick soil layer at the root and fixing it with a tripod?

The purpose of covering soil is to reduce the water loss caused by capillary phenomenon and play a role in water conservation, similar to the hoe effect. Garden terminology is called hole sealing.

The purpose of tripod fixing is to reduce shaking and toppling caused by strong wind. Continuous shaking will affect the absorption of water by roots and damage capillary roots. The professional term of landscape architecture is drama support.

Knowledge expansion:

Cut off most branches and leaves and tie straw ropes to the trunk; Cover with sunscreen, thus greatly weakening the transpiration of trees and reducing water loss.

When transplanting, several large perforated plastic pipes are used to lead to the roots, which makes the roots more ventilated and is beneficial to root cell respiration.

An important function of delivering various nutrient solutions to trees is to promote the division and growth of root cells and grow new roots as soon as possible.

All the above measures are aimed at improving the survival rate of trees.