ENVIRONMENTAL CONSEQUENCES in rocky mountain coniferous ...

Four levels of utilization were practiced under each of the three silvicu 1 tural
prescriptions (table 1 ). Util ization treatments represented successively more
intensive utilization practices, ranging from conventional sawlog utiliza tion t
near-compl ete uti 1 ization of a1 1 stems.
Table 1.--Timber utilization treatments and post-harvest site treatments tested
under each of the three silvicul tural methods employed, Coram study site.
Utilization
Standard
Conventional
saw1 og
Close log
utilization,
trees 7"
(17.8 cm) d.b.h.+
(sawtimber trees)
Close tree
utilization,
trees 5"
(12.7 cm) d.b.h.+
Close fiber
uti 1 ization,
all trees
Post-Harvest Treatment
Ma ter i a1 Removed Treatment Designation
Green and recently
dead logs, to 5-112"
(14 cm) top; 113 or
more sound.
Green logs, to 3" x
8' (7.6 cm x 2.4 m);
dead and down logs,
to 3" x 8' (7.6 cm x
2.4 m), if sound
enough to yard.
Green logs, to 3" x
8' (7.6 crn x 2.4 m);
dead and down logs to
3" x 8' (7.6 cm x
2.4 m), if sound.
Green 1"-5" (2.5 -
12.7 cm) d.b.h.
material tree length,
in bundles ; green
trees 5"' (12.7 cm)
d.b.h., tree length;
dead and down, to
3" x 8' (7.6 cm x
2.4 m), if sound
enough to yard.
'Trees 1"-5" (2.5 - 12.7 cm) d.b.h. cut and pre-bund
on the site.
Remaining under-
story slashed;
broadcast burned.
Understory pro-
tected and re-
tained; left as is.
Remaining under-
story slashed;
broadcast burned.
Remaining under-
story slashed;
left as is.
led prior to logg ing activity