Girdling of large trees can be accomplished with a chainsaw or hatchet, at whatever height is convenient, by making two horizontal, parallel cuts, three inches apart, two inches into the wood, all the way around the tree.
(Girdling of large trees; can be accomplished; ) (a chainsaw or hatchet; is; convenient)
Girdling of large trees a chainsaw or hatchet
can be accomplished is
convenient