ENVIRONMENTAL CONSEQUENCES in rocky mountain coniferous ...

Table 3.--Timber utilization treatments and post-harvest site treatments evaluated
in old-growth lodgepole pine, Teton study site.
Utilization
Standard
Material
Removed
Post -harvest
Treatment
Conventional Green and recently dead A. Broadcast burn
sawlogs, to 6" (15 cm) B. Windrow and burn
top; 113 or more sound.
Near Colnpl ete All green and dead A. Leave as-is (bare)
material , tree length, B. Re-spread
incl udinq down dead chipped residue
pieces 6 feet (1.8 m) as mulch.
and longer.
Four cutting units, each approximately 20 acres (8.1 ha), were harvested (fig. 6).
Two were logged to conventional utilization standards, using common chainsaw felling,
bucking, and sawlog skidding. Residue volumes following harvesting on these units
amounted to over 4,300 ft\er acre (121 m3). The two remaining units were logged to
a near-complete utilization standard, using a feller-buncher, tree-lenqth skidding
with rubber-tired grapple skidders, and segregating merchantable logs at the deck.
A11 material not meeting minimum specifications for sawlogs was chipped, using a
portable whole-tree chipper at the site.
Figure 6.--Harvesting -breatments carried
out Bn old-growth Zodgepole pine on
the Teton study site included inten-
sive utiZLzation of v.irtuaZZy a22
wood fiber. An intensive utiZCza-
tBon subtreahnent area is shown
immediate22 fo Ztowing hamesting
operatCons .