|
Ex~bit B - Sit® Description • page 4
<br />4G ~ SOIL SURVEY
<br />chained or poorly drained soils that Carmel in alluvium.
<br />'Chess soils are on tcrl;nces, !load plains, and cbainage-
<br />rvnys. Elevation ranges from 4,800 to ;'i,G00 feet. Slopes
<br />are 0 to 1 percent. The native vegetation is sedges,
<br />bluegrass, timothy, and other water-tolerant grasses
<br />aad fortis. Mean annual precipitation ranges from 13
<br />to 15 inches, mean annual air temperature ranges from
<br />48° to 50° P', and the frost-fi•ee season ranges from
<br />13b to 1S0 days.
<br />In a representative profile the surface layer is gray
<br />and grayish brown fine s.uuly loam about 30 inches
<br />thick. The subsoil is light brownish gray fine sandy
<br />loam about 30 inches thick.
<br />Permeability is moderately rapid, and the available
<br />water capacity is high. Reaction is moderately alkaline.
<br />These soils are used mainly for hay and grazing. A
<br />few areas are used for irrigated crops and pasture.
<br />Representative profile of Poudre fine sandy loam, 0
<br />to 1 percent slopes, in native .grass, about 100 feet east
<br />of the west quarter cornet• of sec, 34, T. 8 N., R. G9 W.:
<br />All-0 to 10 inches; gray (lOYR 5/1) fine sandy
<br />loam, very dark gray (lOYR 3I1) moist;
<br />' moderate medium granular structure;
<br />slightly hard, very friable; natsticky and
<br />nonelastic; crushed soil surface feels
<br />slippm•y and soaplike; many medium and
<br />large mica (lakes; calcareous; moderately
<br />alkaline; clear wavy boundary.
<br />A12-10 to 30 inches; grayish brown (10YR
<br />5/2) fine sandy loam, very dark grayish
<br />• brown (lOYR 3/2) moist; common tne-
<br />dium distinct dark yellowish brown
<br />ilOYR 4j4 and 4JG) moist mottles; weak
<br />:rtteclimn subangular blocky structw•e
<br />;parting to coarse granular; crushed soil
<br />surface feels slippery amt soaplike; many
<br />line to large mica (lakes; calcareous;
<br />moderately alkaline; gradual smooth
<br />boundary.
<br />B2g-301.o GO inches; light brownish gray (IOYR
<br />(i/2) fine sandy loam, grayish brown
<br />i lOYR 5/'L) moist; many large promi-
<br />nent light yellowish brown (lOYR G/4}
<br />moist mottles; massive; slightly hard,
<br />friable; nonsticky surd nonelastic;
<br />crushed soil surface feels slippery and
<br />soaplike; many fine to large mica (lakes;
<br />calcareous; toderately alkaline.
<br />The A horizon rouges from Gue sandy loam to sandy
<br />loam 20 to 40 inches thick. Thickness of the mollic
<br />epipedon is 24 t:o 50 inches. Content of rock fragments
<br />ranges from 0 to 15 percent. Reaction ranges from
<br />mildly alkaline to moderately alkaline. Crave! is at a
<br />depth of 40 to GO inches in some profiles.
<br />84-Poudre liuc eaudy loaur, 0 to 1 rerccut elopes.
<br />This ]eve] soil is on low terraces and Flood plains.
<br />Included with this soil in mapping are a few small
<br />areas of soils that at•e more sloping, Also included are a
<br />few areas of soils in which gravel is at a depth of less
<br />than 90 inches, a few grace) bars, and a few small
<br />areas of Loveland, Caruso, and Paoli soils.
<br />Runoff is slow, and the hazard of erosion is slight.
<br />If irrigated, this soil is suited do pasture and hay.
<br />Barley, alfalfa, corn, and sugar beets can be grown if
<br />the water table is lowered. The soil is also well suited
<br />to pasture and native grasses. Capability unit IVw-
<br />irrignted; Wet Meadow range site; windbreak su
<br />ability group 5.
<br />Purner r~:+
<br />The Purner series consists of shallow, well drain
<br />soils that formed in material weathered from reddi
<br />brown sandstone. These soils are on uplands and a
<br />underlain by sandstone at a depth of 10 to 20 inch!
<br />);levation ranges ft•om 5,800 to 6,400 feet. Slopes a
<br />I to 30 percent. The native vegetation is mainly bl
<br />gr•ama, wheatgrasses, mountainmahogany, and sot:
<br />other fortis and shrubs. Mean annual precipitati~
<br />ranges from 13 to 15 inches, mean annual air temper
<br />tore ranges from 47° to 49° F, and the frost-fr
<br />season ranges from 115 to 130 days.
<br />In a representative profile the surface layer
<br />reddish brown fine sandy loam about 7 inches this
<br />The underlying material is light reddish brown fii
<br />sandy loam about 7 inches thick. Below this is hat
<br />reddish brown sandstone.
<br />Permeability is moderate, and the available tvat~
<br />capacity is low. Reaction is mildly alkaline above
<br />depth of about 7 inches and moderately alkaline beta
<br />that depth.
<br />These soils are used mainly for native grasses.
<br />Representative profile of Purner fine sandy loam,,
<br />to 9 percent slopes, in native grass, about 1,000 fel
<br />north and G50 feet west of the southwest corner of se
<br />22, T. ]0 N., R. 70 W.:
<br />Al-0 to 7 inches; reddish brown (SYR 4/3
<br />fine sandy loam, dark reddish brow
<br />i5YR 3/3) moist; weak medium std
<br />angular and weak to moderate mediw
<br />granular structure; slightly hard, ver
<br />friable; calcareous; mildly alkaline; cle:~
<br />smooth boundary.
<br />Cca-7 to 14 incites; light reddish brown (5Y1
<br />G/3) fine sandy loam, reddish brow
<br />(5YR 5/3) moist; weak medium suI
<br />angular blocky structure; slightly hart
<br />very friable; calcareous; visible seconc.
<br />ary calcium carbonate as seams an
<br />streaks and finely divided forms; model
<br />ately alkaline; clear smooth boundary.
<br />R-14 to GO inches; hard reddish brown sandstone
<br />The A horizon is sandy loam or fine sandy loam 6 t
<br />12 inches thick. Content of rock fragments, main!;
<br />gravel-size sandstone, ranges from 0 to 15 percent
<br />The A horizon is leached of lime for a few inches it
<br />places. Tire zone of lime accumulation is immediate!;
<br />above or in the upper part of the bedrock in places.
<br />85-Purner files sandy loam, 1 to 9 percent elopes
<br />This nearly level to strongly sloping soil is on upland:
<br />and ridges. This soil has the profile described a:
<br />representative of the set•ies.
<br />Included with this soil in mapping are some smaf
<br />areas of soils that have a surface layer of lonnr. Alst
<br />included are small areas of soils that have more stones
<br />in the surface layer, small areas of Rock outct•op, and
<br />few small areas of Kirtley soils.
<br />Runoff is rapid, and the hazard of erosion is severe.
<br />This soil is suited to pasture and native grasses
<br />
|