|
Pulclycr ~crice
<br />The Fulcher series l'UI151S(S of ~p, well drained
<br />soils. These soils fm'med in alluvi nn alluvial fans
<br />;md mountainsides. Slopes are 3 to 10 percent. F,le-
<br />vation is 8,:,00 to 9,600 feet. Natural vegetation is
<br />dominantly +cestern nhcatgrass, ,junegrass, cun-ant,
<br />;md rnbbitbrush. The aeerage annual precipitation is
<br />about ]5 inches, the mean annual air temperature is
<br />about 40° F, ;tad the frost-free season is OS to 80 days.
<br />]n a representative profile the surface layer is very
<br />dark grayish bro+cn cobbly loam about 11 inches thick.
<br />The subsoil is d;n'k bro+an cobbly clay loam and cobbly
<br />sandy clay loam about .3] inches thick. The substratum
<br />is dark grayish brown cobbly sandy clay loam that
<br />extends to a depth of GO inches or more.
<br />Permeability is nx,deralely slow, and the acailable
<br />+eater capacity is high. Reaction ranges from mildly
<br />alkaline to moderately alkaline. The effective rooting
<br />depth is mm-e than GO inches.
<br />These soils are used for range arld +vildlife.
<br />P.epresent.ative profile of Fulcher cobbly loam, 3 to
<br />10 percent slopes, in the na'theast quarter sec. ]2, T.
<br />37 N., R. 6 E.
<br />All-0 to 5 inches; gracish brown (lOYR 5/2) cobbly loam,
<br />very dark grayish bro+vn (]01'R 3/2) moist; strong
<br />fine crumb structure; soft, very triable; ]5 yer-
<br />cent cobbles and gravel; mildly alkaline; clear
<br />smooth boundary.
<br />Al?--5 to 11 inches; grayish brown (]OYP. 5/2) cobbly
<br />loam, very dark grayish brown (101'R 3/2) moist;
<br />weak medium subangular blocky structure parting
<br />to strong fine granular; soft, very friable; 35 er-
<br />rent cobbles and gravel; mildly alL:aline; dear
<br />smooth bounrla ry.
<br />B1-11 to ] i inches; bro+cn (]01'R Si3) cobbly light clay
<br />loam, dark brown (]01'R 3/3) moist; moderate
<br />medimn subangular blocky structure parting to
<br />moderate fine suha ngular block }~; hard, very tri-
<br />able; few thin patchy clay films on pods; 15 per-
<br />cent cehbles; mildly alkaline; gradual wavy bound-
<br />ary.
<br />B?t-17 to 3i inches; brown (lOYP. 5/3) cobbly heavy clay
<br />loam, dark tn'own (]01 R 9/3) moist; strong
<br />medium angular blocky structure; eery hard, eery
<br />firm; modra~ate continuous clay fibns on pods and
<br />in root channels; clay films on the widrrside of
<br />coarse fragments; ]5 percent cobbles; mildly alka-
<br />line; clear wavy boundary. -
<br />}33ca-37 to 42 inches; pale brown (]01'R 6/3) cobbly
<br />sandy clay loam, dark hro+yn (101'R 4; 3) moist;
<br />weak medium subangular blocky structure; very
<br />hard, firm; thin patchy clay films on pods and in
<br />root Chan nek; 15 percent cobbles; ci sihle secondary
<br />carbonate occurring as small cone rrtions and as
<br />coatings on cobbles; calcareous; modrrately alka-
<br />line; gradual +ra+'t' boundary.
<br />Cca-4? to 60 inches; light brownish gray (10YR 6!2)
<br />cobbly sandy clay loam, d:u'k grayish bruw'n (lOYR
<br />4/2) moist.; massive; hard, friahle; 50 percent
<br />cobbles and stones; visible secondary calcium car-
<br />bonate occu n~ing s concretions iu thin seams and
<br />streaks and as coatings on cua rse fray vents; tal-
<br />carcous; modern Lely alkaline.
<br />The .4 horizon is 7 to 15 inches Lhick. The B2t horizon is
<br />10 to 25 inches thick and is cobbly heavy clac loam or cob-
<br />bly clay. Above a depth of 90 inches, the content of rubbles
<br />and gravel ranges from 10 to 35 percent. The size and con-
<br />tent of coarse fragments generally increase belo+v 40 inches.
<br />The content of cobbles and stones in the C horizon ranges
<br />from 35 to 65 percent. Depth to lime ranges from 30 to 50
<br />inches.
<br />FrC-Fulcher cobbly' loam, 3 l0 10 percent slopes.
<br />This gently sloping or sloping soil occupies areas in
<br />narro+v momrtain valley's in the western part of the
<br />area. About 15 percent of this unit is included +'ert•
<br />cobbly and stony areas and cobble bars, 5 percent
<br />areas of Embargo very stony loam, and 5 percent
<br />Enlpedrado loam.
<br />Runoff is moderate. The hazard of +vater erosion is
<br />moderate. There are many small gullies and creek
<br />cha»nels.
<br />This soil is used for range and wildlife. Capability
<br />unit VIe-1 nonirrigated; Loamy Park range site,
<br />Cnritn Srrir`s
<br />The Garita sclTes consists of deep, ++ell dr;rined soils.
<br />These•snils formed in alluvium on alluvial fans and
<br />foothills. Slopes are 1 Lo ?:i percent. F,levation is 7,700
<br />to 8,G00 feet. I~raturxl vegetation is dominantly +cinter-
<br />fat, blue grnma, ring muhly, rnbbitbrush, and snake-
<br />treed. The average annual precipitation is about 8
<br />inches, the mean annual air temperatm'e is about 41°
<br />F, and the frost-free season is 95 to 115 days.
<br />]n a representative profile the surface layer is dark
<br />grayish bro+an cobbly loam about 9 inches thick. The
<br />underlying material is light bro+cnish gray and grayish
<br />ln'o++'n gravelly loam that extends to a depth of 00
<br />inches or more.
<br />Permeability is moderate, and the acailable ~+'ater
<br />capacity is moderate m• high. P.enction is moderately
<br />alkaline. The effective rooting depth is more than 00
<br />inches.
<br />These soils are used for range, wildlife, and irrigated
<br />crops.
<br />Representative profile of Garita cobbly loam, 1 to 3
<br />percent slopes. 700 feet south and 50 feet +yest of the
<br />northeast corner sec. 28, T. 38 N., R. 7 E.
<br />.41-0 to 9 inches; light brownish gray (101"R 6/2} cobbly
<br />loam, dark grayish brown (101'R 9/2) moist;
<br />moderate fine granular siruct ore; soft, very fri-
<br />able; 25 percent gravel and cobbles; ralrareous;
<br />modrrately alkaline; gradual wavy boundary.
<br />Clca -9 to 30 inches; white (]0]'R 8/?) gravelly loam, light
<br />brownish gray (lOYP. 6/?) moist; massive; slightly
<br />hard, very friable; 40 percent gravel and cobbles;
<br />a large amount of soft visible secondary calcium
<br />carbonate; few cr}'stals of calcium sulfate; calcare-
<br />ous; moderately alkali ne; gradual +cavy boundary.
<br />C2ca--30 to 60 inches; light brownish gray (]OYR 6/?)
<br />gracclly loam, gracish bnnrn (]01'R 5/2) moist;
<br />massive; slightly' hard, very friahle; 40 peer r•nt
<br />gravel and Bobbles; visible =econdary calcium car-
<br />bonate occurring mostly as concretions in thin
<br />seams and streaks and as coatings on coarse frag-
<br />ments-, calcareous; modrrately alkaline.
<br />The A horizon is 5 to 1? inches thick and is loam or
<br />sandy loam that is cobbly or gracclly. The Cca horizon is
<br />gracclly or cobbly loam. The content of cobbles and gravel
<br />in [he A horizon ranges from 40 to 75 percent in fhe A hori-
<br />zon and from 35 to SS percent in the C horizon. Steeper
<br />soils generally have a larger amount of cobbles and gravel
<br />on the su eta re and in the profile than gently sloping =oils.
<br />Depth to the Cca horizon ranges from 5 to 30 inches. The
<br />content of calcium carbonate is 15 to 30 percent.
<br />Caf3--Garita cobbly loam, 1 to 3 pc•rcc•nt =1opc•s.
<br />'ibis very gently' sloping soil occupies the up)~er end
<br />of allucial fans along the ++estern edge of the valley.
<br />The profile of this soil is the one described as repre-
<br />sent:(tiye of the series. About 5 percent of this unit is
<br />included :wens of Stunner loam, I to 3 percent slopes,
<br />and about 10 percent areas of Luhon Loam, 1 to 3 per-
<br />cent slopes. Also included are some small areas of
<br />steeper Garita soils.
<br />Runoff is moderate. The erosion hazard is slight.
<br />?Host of the acreage is used for range, and a fe+e
<br />areas are used fm' irrigated alfalfa and small grain.
<br />Capability unit ]\'e-3 irrigated, \'lls-S nonirrigated;
<br />Limy Eench range site.
<br />
|