Device for street tree rejuvenation, construction method and application

The invention provides a device for rejuvenating border trees. The device comprises a tree pool and a rejuvenation pit, and a graded gravel water channel is arranged from the tree pool to the rejuvenation pit; one end of the graded sandstone water channel is led out from the interior of the upper part of one corner of the tree pool, and the other end of the graded sandstone water channel is led into the rejuvenation pit, so that water directly flows into the rejuvenation pit from the tree pool during irrigation; the graded gravel water channel is led out from the upper portion of the tree pool, the top end of the graded gravel water channel is exposed out of soil in the tree pool, and the graded gravel water channel is located at one end in the rejuvenation pit. The method has the advantages that healthy growth of the border trees can be promoted, the problem of weak growth vigor of the trees caused by deep water shortage of the border trees is solved, and the rejuvenation effect is regularly observed. 本发明提供一