Once trees are cut down, fragile forest soils are subject to severe erosion from heavy rains.
(trees; are cut down; ) (fragile forest soils; are; subject to severe erosion from heavy rains; T:Once trees are cut down) (fragile forest soils; are subject to; severe erosion)
trees fragile forest soils fragile forest soils
are cut down are are subject to
subject to severe erosion from heavy rains T:Once trees are cut down
severe erosion