(1) A primary
purpose of these site-specific vegetation retention prescriptions in Table 7
and described for the geographic areas in Figure 1, is to identify
opportunities and allow incentives for restoring or enhancing riparian
management areas or streams. Another purpose of site-specific vegetation
retention prescriptions is to allow for changes to the vegetation retention
requirements in this rule division. The changes must provide for the functions
and values of streams and their riparian management areas as described in the
vegetation retention goals for streams while affording a better opportunity to
meet other objectives.
Figure 1. Geographic Areas, OAR
629-643-0400
Click
here to view image
Table 7. Site Specific Basal Area Targets
|
Geographic
Areas
|
SQUARE FEET OF BASAL AREA PER 1000
FEET OF STREAM EACH SIDE
|
|
|
|
LARGE TYPE
F
|
MEDIUM TYPE
F
|
SMALL TYPE F
|
|
RMA = 110
feet
|
RMA = 110
feet
|
RMA = 100 feet
|
|
Coast Range, S. Coast
|
253
|
253
|
230
|
|
Interior & W. Cascades
|
297
|
297
|
270
|
|
Siskiyou
|
242
|
242
|
220
|
|
RMA = 30 feet
|
RMA = 30 feet
|
RMA = 30 feet
|
|
Eastern Cascade & Blue
Mountain
|
51
|
51
|
51
|
(2) The
operator may develop site specific vegetation retention prescriptions for
streams and their riparian management areas to achieve the vegetation retention
goals described in OAR
629-643-0000 if:
(a) The potential of the streamside stand to
achieve conditions similar to mature forest stands in a timely manner is
questionable;
(b) In-stream
conditions are impaired due to inadequate large wood or other factors;
or
(c) The site-specific
prescription would result in less environmental damage than the standard
practice.
(3) An
operator who wishes to implement site specific vegetation retention
prescriptions instead of the standard practice shall submit to the State
Forester a plan for an alternate practice.
(4) The State Forester shall approve a plan
for an alternate practice if the State Forester determines that, when it is
properly executed, the alternate plan will have no significant or permanent
adverse effects, and:
(a) The plan shall meet
or exceed the vegetation retention goals in a more timely manner than if the
plan were not implemented;
(b) The
long-term benefits of the plan are greater than short-term detrimental effects;
or
(c) The plan will result in less
environmental damage than if the standard practice were followed.
(5) The State Forester may
consider the following non-exhaustive list of factors in evaluating the plan:
(a) The potential of the existing streamside
stand to achieve mature streamside forest characteristics;
(b) The long-term supply of woody
debris;
(c) The survival of newly
established trees or shrubs;
(d)
Fish and wildlife species' sensitivity to changes in water temperature and
water quality;
(e) The potential
for sedimentation;
(f) The
stability of woody debris placed in aquatic areas; and
(g) The State Forester's ability to monitor
the direct effects of the proposed practices.
