PERMFILE126911

• Permit No: M1981058
• IBM Index Class Name: Permit File
• Doc Name: VEGETATION INFORMATION
• Section_Exhibit Name: EXHIBIT J
• Media Type: D
• Archive: No

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RANGE SITE N0. 284 Fage 3
LOAMY FOOTHILLS
August 1975
' Native (pot.entlal~.Vegetation and Guide for Determining Range
Condition.., ~- ~ -
Percentage composition by weight of the principal species may
total as much as:
1Jesterr~ wheatgrass 30
Muttongrass 30
Junegre~ss ~
Needle and-thread 5
Indian ricegrass. 5
Bottlet~rush squirreltail 5
Big sagebrush _
'
~ 15)Total of 15~
Black s:agebr
ush-; ~-
- 10)
Antelope,bitt:erbrush S
Utah se:rvlceberry 5
True mauntairi mahogany 5
Douglas; rabbitbrush ~ 5
Others (listed above) 15
Heavy grazing use can aid the establishment of pinyon and
juniper seedlings through reduced compesition, exposure-of _
mineral so i'1,-and-reductiori of fuel'to carry fires.==This,:= -----
combined with increasing control of fires, has caused large
portions.ol`;the site. to be taken over by pinyon and juniper
since_the c:omin~µg3So~~f_iivestock.
Other, specie's`mosC~dkely~.to~7nvade.the site or,.i.ncrtase from
.-. _.
trace amounts;~3f_,cogeydetel~oretees; ere_ rubbery abbi thrush,
snakeweed~"'i:heatgrass;_Colorado ~r'ubberweed, and 'several annual
forbs..`Sagebrush.often:assumes a,.dominant posi~iion.as the
ecological condition deteriorates and pinyon arid ~ untper have
not taken over. .~ _ _ ....,...
~: .. _ -.,
-,• -
4. Totai Annual 'Production '•- '. '
Favorable years=--:_: 1500 Pounds per Acre Air Dry
Unfavorable:,years.: 800 " " "
Median years -,V ,:„ :-;; .. ::1 100 " " " "
-ix-,- _
5. Soils ::. -.- °~~. ,.
a. Most of.the~soils have developed on loess overlying sandstone
- or shale,:.but some are of..alluvial origin. The dominant loess
soils.irre~feddish_ln color. .Surface te.ctures;,are loam to fine
sandy.-1oar6.'.and :there is: gene rally a Drell develops tc~ctural B
horizon which contributes to high me:S:o~c• storage ca;acit•.