Forestry engineering sapling supporting device and method

The invention discloses a forestry engineering sapling supporting device and method, and belongs to the field of forestry engineering construction.The forestry engineering sapling supporting device comprises a fixing barrel, the fixing barrel is a two-section type cylinder with the inner diameter being small in the upper portion and large in the lower portion, an annular plate is arranged at an opening in the upper end of the fixing barrel, and two sets of connecting plates are installed on the annular plate; the two groups of connecting plates are detachably connected; the upper ends of the two groups of connecting plates are rectangular, segmented grooves are formed in the connecting plates, first sliding blocks and second sliding blocks are mounted in the segmented grooves, and first mounting holes and second mounting holes are formed in the first sliding blocks respectively; an adjusting rope is mounted on the connecting plate, and the adjusting rope is suitable for penetrating through the first mounting