LOCATION KOELE                   HI

Established Series
Rev. RCH/SN/MRK
03/2017

KOELE SERIES

The Koele series consists of deep, well drained soils that formed in alluvium weathered from basic igneous materials. Koele soils are on alluvial fans and have slopes of 3 to 25 percent. Mean annual rainfall is about 762 millimeters (30 inches) and mean annual temperature is about 20 degrees C. (68 degrees F.)

TAXONOMIC CLASS: Fine, mixed, semiactive, isothermic Cumulic Haplustolls

TYPICAL PEDON: Koele silty clay loam - cultivated. (Colors are for moist soil unless otherwise noted. All textures are "apparent field textures.")

Ap--0 to 46 centimeters (0 to 18 inches); dark brown (7.5YR 3/2) silty clay loam, brown (7.5YR 4/2) dry; strong fine subangular blocky structure parting to strong fine granular; hard, friable, slightly sticky and slightly plastic; many fine and medium roots; many fine and medium interstitial pores; 12 percent gravel; moderate effervescence with hydrogen peroxide; very strongly acid (pH 4.5); abrupt smooth boundary. (43 to 48 centimeters {17 to 19 inches} thick)

AC--46 to 84 centimeters (18 to 33 inches); dark brown (7.5YR 3/2) gravelly silty clay loam, brown (7.5YR 4/2) dry; weak fine subangular blocky structure; hard, friable, slightly sticky and slightly plastic; few fine roots in upper part; common fine interstitial pores; 20 percent gravel; moderate effervescence with hydrogen peroxide; moderately acid (pH 6.0); abrupt wavy boundary. (33 to 43 centimeters {13 to 17 inches} thick)

2C1--84 to 91 centimeters (33 to 36 inches); dark brown (7.5YR 3/2) extremely gravelly sandy clay loam, dark reddish gray (5YR 4/2) dry; massive; hard, friable, slightly sticky and slightly plastic; common fine interstitial pores; 80 percent gravel; moderately acid (pH 6.0); abrupt wavy boundary. (5 to 13 centimeters {2 to 5 inches} thick)

2C2--91 to 109 centimeters (36 to 43 inches); dark brown (7.5YR 3/2) gravelly silt loam, brown (7.5YR 4/2) dry; weak very fine subangular blocky structure; hard, friable, slightly sticky and slightly plastic; common fine interstitial pores; 20 percent gravel; slightly acid (pH 6.2); clear wavy boundary. (13 to 23 centimeters {5 to 9 inches} thick)

3C--109 to 140 centimeters (43 to 55 inches); dark brown (7.5YR 3/2) stratified fine sand and coarse sandy loam, brown (7.5YR 4/2) dry; single grained; some parts are massive; loose and soft, loose and very friable, nonsticky and nonplastic; common fine weathered rock particles that break down to clay loam after prolonged rubbing; slightly acid (pH 6.4).

TYPE LOCATION: Island of Lanai, Maui County, Hawaii; 20 degrees 51' 42.72" north latitude and 156 degrees 56' 57.10" west longitude. (WGS84)

RANGE IN CHARACTERISTICS:
Depth to bedrock is more than 152 centimeters (5 feet). A few stones occur on the surface and throughout the profile in some pedons. Mean annual soil temperature is about 21 degrees C. (69 degrees F.). The soil is dry in some horizon for more than 90 cumulative days in most years.

Thickness, texture and consistence of the layers in the C horizon vary considerably within a short distance. The layers may be sand, coarse sandy loam, coarse sandy clay loam, silt loam or silty clay loam. The contrasting textural layers are 1/2 to more than 12 inches thick.

COMPETING SERIES: These are the Mahukona and Kamaole series. Mahukona soils have a mean annual soil temperature of more than 72 degrees F. Kamaole soils have Aa lava at a depth of 20 inches.

GEOGRAPHIC SETTING: The Koele soils are on alluvial fans at elevations of 1,000 to 2,000 feet. Slope is 3 to 25 percent. The soils formed in alluvium from soils developed in basic igneous material. Annual rainfall is 381 to 1524 centimeters (15 to 60 inches). The average January temperature is about 19 degrees C. (66 degrees F.); average July temperature is about 23 (73 degrees F.); and mean annual temperature is about 20 degrees C. (68 degrees F.).

GEOGRAPHICALLY ASSOCIATED SOILS: These are the Kanepuu, Lahaina and Waihuna soils. Kanepuu soils have an argillic horizon. Lahaina soils have 2.5YR or redder hue below the A horizon. Waihuna soils have a very-fine control section.

DRAINAGE AND PERMEABILITY: Well drained; medium runoff; moderately rapid permeability.

USE AND VEGETATION: Used for pineapple, pasture and wildlife. Present vegetation is lantana (Lantana camara), Natal redtop (Tricholaena repens), dallisgrass (Paspalum dilatatum), molassesgrass (Melinis minutiflora), and pilipiliula (Chrysopogon aciculatus).

DISTRIBUTION AND EXTENT: Koele soils occur on the islands of Lanai and Molokai, Hawaii. They are not extensive comprising about 7,000 acres.

SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Davis, California

SERIES ESTABLISHED: Islands of Molokai and Lanai, Maui County Hawaii, 1971. OSED scanned by SSQA. Last revised by state on 5/78.

---

National Cooperative Soil Survey
U.S.A.