LOCATION NORLING OREstablished Series
TAXONOMIC CLASS: Fine-loamy, mixed, superactive, mesic Ultic Haploxeralfs
TYPICAL PEDON: Norling very gravelly loam - forest land. (Colors are for moist soil unless otherwise stated.)
Oi--2 inches to 0; partially decomposed needles, leaves, and twigs.
A1--0 to 5 inches; brown (10YR 4/3) very gravelly loam, brown (10YR 5/3) dry; strong fine granular structure; slightly hard, friable, nonsticky and nonplastic; many very fine, fine, and common medium, and few coarse roots; many very fine irregular pores; 45 percent gravel, 5 percent cobbles; strongly acid (pH 5.4); abrupt smooth boundary.
A2--5 to 10 inches; brown (10YR 4/3) gravelly clay loam, pale brown (10YR 6/3) dry; moderate very fine and fine subangular blocky structure; hard, friable, sticky and plastic; many very fine, fine, medium, and few coarse roots; many very fine tubular pores; 25 percent gravel, 5 percent cobbles; moderately acid (pH 5.6); clear wavy boundary. (Combined thickness of the A horizon is 9 to 16 inches)
Bt1--10 to 22 inches; yellowish brown (10YR 5/4) gravelly clay loam, light yellowish brown (10YR 6/4) dry; moderate very fine and fine subangular blocky structure; hard, friable, sticky and plastic; common very fine, fine and medium roots; common very fine tubular pores; common faint clay films on faces of peds; 20 percent gravel, 5 percent cobbles; moderately acid (pH 5.6); clear wavy boundary.
Bt2--22 to 29 inches; yellowish brown (10YR 5/4) very cobbly clay loam, light yellowish brown (10YR 6/4) dry; moderate very fine and fine subangular blocky structure; hard, friable, sticky and plastic; few very fine and fine roots; common very fine tubular pores; common faint clay films on faces of peds; 20 percent gravel, 20 percent cobbles; moderately acid (pH 5.6); clear wavy boundary. (Combined thickness of the Bt horizon is 6 to 24 inches)
Cr--29 inches; highly fractured metavolcanic rock.
TYPE LOCATION: Jackson County, Oregon; 5 miles northeast of King Mt., Oregon; about 2,200 feet west and 1,600 feet south of the northeast corner of sec. 2, T. 33 S., R. 4 W., W.M.
RANGE IN CHARACTERISTICS: Solum thickness and depth to a paralithic contact is 20 to 40 inches. The mean annual soil temperature is 47 to 54 degrees F. The soil is usually moist but is dry between 4 and 12 inches for 45 to 60 consecutive days during the summer. The particle- size control section has 18 to 35 percent clay and 5 to 35 percent rock fragments. The soils have an ochric epipedon or an umbric epipedon less than 10 inches thick. Hue is 10YR or 7.5YR.
The A horizon has value of 2 to 4 moist, 4 to 6 dry and chroma of 2 to 4 moist and 3 or 4 dry. Rock fragments range from 15 to 50 percent gravel and cobbles. It is strongly or moderately acid.
The Bt horizon has hue of 10YR or 7.5YR, value of 3 to 5 moist, 5 to 7 dry and chroma of 3 to 6 moist and dry. The fine earth fraction is clay loam or loam. Rock fragments range from 5 to 35 percent gravel and 0 to 20 percent cobbles. It is very strongly acid to moderately acid.
COMPETING SERIES: These are the Beal (T), Boomer, Casabonne, Cherryhill, Cle Elum, Cohasset, Crozier, Fives, Holland, Hood, Hotaw, Latourell, Lettia, Musick, Rosehaven (T), Sanhedrin, Speaker, Teanaway, Ulhalf, Varelum, Wilkeson and Wohly series. All of the above series are over 40 inches to bedrock except for Cle Elum, Crozier, Hotaw, Speaker, and Wohly. Cle Elum soils have an albic horizon and are dry for 75 to 90 consecutive days. Crozier and Wohly soils have a lithic contact. Hotaw soils are dry for 120 to 150 consecutive days. Speaker soils are dry for 60 to 90 consecutive days.
GEOGRAPHIC SETTING: Norling soils are on hill slopes and mountain side slopes. Elevation ranges from 400 to 4,000 feet. These soils formed in colluvium and residuum derived dominantly from metavolcanics and metasediments. Slopes range from 30 to 60 percent. The climate is characterized by warm, wet winters and warm to hot, dry summers. The mean annual temperature ranges from 45 to 54 degrees F. The mean annual precipitation is typically 35 to 60 inches but may range to 100 inches in high winter rainfall interior mountains of Curry County, Oregon. The frost-free period is about 100 to 200 days.
GEOGRAPHICALLY ASSOCIATED SOILS: These are the Acker, Atring, Dumont, Kanid, Lettia, Sharpshooter (T), Vermisa, and Zing soils. Acker and Lettia soils are 40 to 60 inches deep. Atring and Kanid soils are loamy-skeletal. Sharpshooter soils lack an argillic horizon. Dumont and Zing soils are fine textured. Vermisa soils are less than 20 inches deep. All of these soils occur on broad ridgetops, foot slopes, or side slopes of mountains
DRAINAGE AND PERMEABILITY: Well drained; moderately slow permeability.
USE AND VEGETATION: These soils are used for timber production, wildlife habitat and watershed. The native vegetation includes Douglas fir, incense cedar, Pacific madrone, white fir and western hemlock with an understory of salal, cascade Oregongrape, western swordfern, and golden chinkapin. In high winter rainfall areas of Curry County, Oregon, the vegetation includes tanoak, canyon live oak, and pacific madrone.
DISTRIBUTION AND EXTENT: Klamath Mountain province of Southwestern Oregon; MLRA 5. The series is of small extent.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Davis, California
SERIES ESTABLISHED: Jackson County Area, Oregon, 1988.
REMARKS: CEC activity class superactive added 1/2000, competing series not updated at that time.
Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - the zone from the surface of the mineral soil to a depth of 10 inches. (A1 and A2 horizons)
Argillic horizon - the zone from 10 to 29 inches. (Bt1 and Bt2 horizons)