2001-10-31_PERMIT FILE - M2001106

• Permit No: M2001106
• IBM Index Class Name: Permit File
• Doc Date: 10/31/2001
• Doc Name: Application
• From: Huerfano County
• To: DMG
• Media Type: D
• Archive: No

76—Schamber gravelly sandy loam, 3 to 15
percent slopes. This deep, excessively drained soil is
on hills and terrace edges. It formed in gravelly alluvium.
The native vegetation is mainly pinyon and juniper.
Elevation is 6,600 to 7,500 feet. The average annual
precipitation is 12 to 16 inches, the average annual air
temperature is 47 to 52 degrees F, and the average
frost-free period is 100 to 125 days.
Typically, the surface layer is brown gravelly sandy
loam about 4 inches thick. Below this to a depth of 60
inches or more is mainly very gravelly loamy sand. The
soil is mildly alkaline to a depth of 4 inches and
moderately alkaline below that depth.
Included in this unit is about 10 percent Kim fine sandy
loam in depressional areas. The Kim soil has less gravel
throughout the profile than this Schamber soil.
Permeability of this Schamber soil is very rapid.
Available water capacity is very low. Effective rooting
depth is 60 inches or more. Runoff is medium to rapid,
and the hazard of water erosion is moderate to very
high.
This unit is used mainly as woodland and for livestock
grazing. Many areas of the unit are a good source of
roadfill.
The potential plant community is mainly pinyon and
juniper and an understory of Indian ricegrass,
mountainmahogany, blue grama, and muttongrass. Other
grasses that characterize the unit are Scribner
needlegrass, skunkbush, and sideoats grama. The
potential production of the native understory vegetation
in normal years is about 200 pounds of air-dry vegetation
per acre.
Chaining the pinyon and juniper can increase the
production of understory forage plants. Following
chaining, proper grazing management is needed to
reduce erosion and to lengthen the lifespan of the
clearings. Range seeding is most successful if done in
conjunction with chaining. Suitable seeding mixtures can
include crested, pubescent, and intermediate
wheatgrasses and blue grama.
Woodland products such as firewood, high-quality
fenceposts, pinyon nuts, and Christmas trees are
available on this unit. Mature stands of trees can
produce 8 to 12 cords of firewood per acre if all trees
are removed. Removing standing dead trees and
opening the canopy generally enhance reproduction and
promote the growth of grass and younger trees. The use
of tree spades for transplant removal is severely limited
by the cobbles and stones in the soil.
This unit is well suited to homesite development. If the
density of housing is moderate to high, community
sewage systems are needed to prevent contamination of
water supplies as a result of seepage from onsite
sewage disposal systems. If the soil in this unit is
excavated, cutbanks may cave in.
This map unit is in capability subclass Vlls,
nonirrigated. It is in Pinyon-Juniper woodland site.