PERMFILE118473

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Section_Exhibit Name: EXHIBIT 09 USFS ANIMAL-UNIT CLASSIFICATIONS
• Media Type: D
• Archive: No

• CO~JCITIO?J CLASS SCOP.~C=RO
High - 80 - lOC`6 of optimum - raise '_/3 condition class
Medium - 50 - 80A of optimum - no change
Low - Less than 50A of optimum - lower 1/3 condition class
For example, if the vigor rating is "Low," then a "forage density
and composition rating" of low fair would be adjusted downward 1/3
of a condition class to "high poor." (poor+), which is the "Vegetation
Condition C7 ass." -
SOIL STABILITY COPIOITIOtd CLASS
(Classify according to the following descript.ions:) ,. ,
~~ - Rating
F:o evidence of soil movement - Plant and litter cover
effective in protecting soil; runoff is clear; no piling
up of litter behind plants; drainages completely stabilized.
Usually over 85 hits per transect on plants, moss, and
litter (ground cover index). - ~ Excellent
soil movement slioht -Erosion difficult to reco_onize.
May be evidence of past accelerated erosion, but now
stabilized; plant and litter cover effective in protecting
• soil; plant pedestals very few with sloping sides. Some .
litter may be dammed against .vegetation; trampling.
displacement slight; no noticeable compaction. Usually
71-85 ground cover Index. Good
Soil movement moderate - Erosion discernable, although i
acceierated soil movement occurs usually in spots with
stabilized soil elsewhere. Considerable bare soil; some
plant pedestals, few steep-sided; erosion pavement forming.
with occasional exposed pebbles; occasional alluvial
deposit and rills present;. gullies if present now raw and
trampling noticeable but not excessive. Usualiy 56-70
around cover index:. - Fair
Soil movement advanced - Plant cover and litter not
effective in prevent;ng soil movement. Ftuch bare soil;
numerous steep-sided plant pedestals; deposits com~:on; -
gullies with raw sides, trampling displacement and -
compaction prevalent; runoff muddy. Usually 41-55 -
ground cover index. - - Poor
Soil movement severe - Plant cover inadequate; .litter .
lacking; subsoils exposed in many places:; pedestals of ;
strcncer perennials almost ccmple*_ely eroded aviay;
erosion pavement cor..plete cn stony soils; rills and
• alluvial deposits numerous; gullies with raw sides;
scr..mer storm runoff muddy; and 'Heavy rains often cause
miniature mud fio~•rs. Usualiy 0-d0 around cover index. Very Poor

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