Arboricultural arisings - woody material produced
during arboriculture.
Arboriculture - the management of individual trees
or groups of trees primarily for their amenity value.
Brash - the branch-wood and leaf material that is
generally too small in diameter to be considered part of the timber
product from a harvesting site.
Clear felling - term used to describe a harvesting
operation that removes all the trees from a given area.
Clones - genetically identical trees propagated
commercially because of desirable properties. Often used in, for
example, short rotation coppice.
Coppice - the practice of harvesting the above
ground part of a tree for timber and allowing the new shoots to
regrow in a cycle normally extending over a number of years.
Crop - a term used to collectively describe the
trees in a productive woodland.
Felling - the cutting of standing trees.
Forward - the process of extracting harvested
timber from a woodland whilst keeping the timber off the ground
(involving a tractor and trailer unit known as a forwarder).
Hag - the branch-wood and leaf material that is
generally too small in diameter to be considered part of the timber
product from a harvesting site.
Harvesting - the practice of felling and removing
trees from a woodland.
Haulage - the movement of timber from site to site,
usually by lorry.
Log - a product of normal forestry harvesting
operations; sections of a tree cut to a specific length.
Lop & top - the branch-wood and leaf material
that is generally too small in diameter to be considered part of
the timber product from a harvesting site.
Rotation - the period of growth of a forest crop
before it is considered mature.
Short rotation coppice - the practice of growing
and harvesting the above ground part of a crop, usually of willow,
for biomass and then allowing new shoots to regrow from the
harvested stumps (also known as stools) in a short cycle (3 to 5
years).
Short rotation forestry - the practice of growing a
specific crop of trees, usually poplar, for biomass over a
relatively short rotation (usually no more than 15 years).
Silviculture - the care and cultivation of
forests.
Skid - the process of extracting timber from a
woodland site by winch, usually dragging part of the timber on the
ground.
Small round wood (SRW) - Small trunk or branch wood
of diameter 7-14cm.
Thinning - the process of removing selected trees
from an immature woodland to allow other trees to increase in
diameter.
Yield - the timber volume increment of a specified
area of woodland over a specified time. Usually expressed in
m3/ha/year.