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27-4 Edition 47
Land Clearing
EQUIPMENT SELECTIONTABLE
UPROOTING
CUTTING AT OR ABOVE
GROUND LEVEL
KNOCKINGTO
THE GROUND
INCORPORATING
INTOTHE SOIL
LARGE CLEARING —
Vegetation 20 cm (8 in) diameter or larger
Small areas
4 hectares
(10 acres)
Bulldozer blade; forest
machine road builder
arrangement; Forest
machine with directional
felling head
—
Bulldozer blade; forest
machine road builder
arrangement; forest
machine with directional
felling head
—
Medium areas
40 hectares
(100 acres)
Shearing blade, angling
(tilted), knockdown beam,
rakes, tree stumper; forest
machine road builder
arrangement; forest
machine with directional
felling head
Shearing blade (angling
or V-type), tree shear [up
to 70 cm (26 in) softwood;
35 cm (14 in) hardwood],
shearing blade — power
saw combination; wheel/
track feller buncher with
high speed saw head;
forest machine with
directional felling head
Bulldozer blade; forest
machine road builder
arrangement; forest
machine with directional
felling head
—
Large areas
400 hectares
(1000 acres)
Shearing blade, angling
(tilted), tree pusher, rakes,
tree stumper, anchor chain
with ball drawn between
two crawler tractors; forest
machine with directional
felling head
Shearing blade (angling or
V-type), shearing blade —
power saw combination;
wheel/track feller buncher
with high speed saw head;
forest machine with
directional felling head
Anchor chain with ball
drawn between two crawler
tractors. [Use dozer blade
for trees over 18 cm (7 in).];
forest machine road builder
arrangement; forest machine
with directional felling head
—
NOTE:
The most economical size area for each type of equipment will vary with the relative cost of capital equipment versus labor. It is also affected by
whether there are alternate uses for equipment such as using tractors for tillage.
Equipment SelectionTable