LOCATION BOY TX
Established Series
WRM-LCB-RM
07/2014
BOY SERIES
The Boy series consists of very deep, moderately well drained soils. These nearly level to gently sloping soils formed in unconsolidated sandy and loamy materials derived from alluvium. Slope ranges from 0 to 8 percent. Mean annual air temperature is about 20 degrees C (68 degrees F), and mean annual precipitation is about 1321 mm (52 in).
TAXONOMIC CLASS: Loamy, siliceous, semiactive, thermic Grossarenic Plinthic Paleudalfs
TYPICAL PEDON: Boy loamy fine sand--forest. (Colors are for moist soil unless otherwise stated.)
A--0 to 18 cm (0 to 7 in); grayish brown (10YR 5/2) loamy fine sand, light gray (10YR 7/2) dry; single grained; loose; many fine to coarse roots; very strongly acid; clear smooth boundary. (13 to 25 cm thick [5 to 10 in thick])
E1--18 to 89 cm (7 to 35 in); pale brown (10YR 6/3) loamy fine sand, very pale brown (10YR 8/2) dry; single grained; loose, very friable; many fine to coarse roots; few coarse faint yellowish brown (10YR 5/4) masses of oxidized iron sharp boundaries lining pores; strongly acid; clear wavy boundary. (64 to 94 cm thick [25 to 37 in thick])
E2--89 to 119 cm (35 to 47 in); pale brown (10YR 6/3) loamy fine sand; single grained; slightly brittle, very friable; few fine and medium roots; few small rounded quartz pebbles; common coarse faint yellowish brown (10YR 5/4) and a few fine distinct yellowish red (5YR 5/6) masses of oxidized iron lining pores with sharp boundaries; strongly acid; clear wavy boundary. (25 to 56 cm thick [10 to 22 in thick])
Btvg--119 to 178 cm (47 to 70 in); light brownish gray (10YR 6/2) sandy clay loam, light gray (10YR 7/2) dry; weak subangular blocky structure; friable; few fine roots; few fine pores; slightly brittle, common distinct clay films; 10 percent red (2.5YR 4/6) plinthite with strong brown (7.5YR 4/6) rind in matrix; common coarse prominent red (2.5YR 4/8) and common medium prominent strong brown (7.5YR 5/8) masses of oxidized iron with sharp boundaries in matrix; strongly acid.
TYPE LOCATION: Montgomery County, Texas (TX); from intersection of I-45 and Grogan Road about 3.4 miles south of Conroe; go east on Grogan Road 1.2 miles; 150 ft south of road in forest. (Outlaw Pond USGS topographic quadrangle; Latitude: 30 degrees, 13 minutes, 39.90 seconds N; Longitude: 95 degrees, 21 minutes, 49.90 seconds W. NAD 83; UTM Easting 272501.40 m, UTM Northing 3346385.80 m, UTM Zone 15.)
RANGE IN CHARACTERISTICS:
Soil Moisture: Udic soil moisture regime. The soil moisture control section is not dry in any parts for as long as 90 days in normal years.
Mean annual soil temperature: 20.6 to 21.7 degrees C (69 to 71 degrees F)
Depth to argillic horizon: 103 to 152 cm (41 to 60 in)
Depth to Plinthite ranges from 102 to 152 cm (40 to 60 in)
Thickness of the ochric epipedon: 104 to 152 cm (41 to 60 in)
Thickness of Grossarenic feature: 0 to 119 cm (0 to 47 in)
Particle-size control section (weighted average)
Clay content: 0 to 30 percent
Sand content: 60 to 85 percent
A Horizon
Hue: 10YR
Value: 4 to 7
Chroma: 1 to 3
Texture: sand, fine sand or loamy fine sand
Clay content: 1 to 15 percent
EC (mmhos/cm): 0 to 3
Reaction: very strongly acid or strongly acid
E Horizon
Hue: 10YR or 7/5YR
Value: 5 to 8
Chroma: 1 to 4
Redox concentrations: amount- few to common; shades-yellow or brown
Texture: sand, fine sand or loamy fine sand
Clay content: 1 to 15 percent
EC (mmhos/cm): 0 to 1
Reaction: very strongly acid or strongly acid
Btvg Horizon
Hue: 10YR or 2.5Y
Value: 5 to 7 or N/0, 6/0, or 7/0
Chroma: 1 to 4
Texture: fine sandy loam or sandy clay loam
Clay content: 15 to 35 percent
Redox concentrations: amount- common to many; shades-yellow, red or brown
Plinthite: 5 to 12 percent
EC (mmhos/cm): 0 to 6
Reaction: very strongly acid or strongly acid
COMPETING SERIES: There are no other series in the same family. Closely similar series are the
Bienville,
Bonifay,
Darco,
Depcor,
Gunter,
Kenney,
Landman,
Padina,
Pickton and
Rentzel series.
Bienville soils have Bt horizons that consist of lamella or that are loamy fine sand.
Bonifay,
Darco,
Gunter and
Rentzel soils have base saturation less than 35 percent; in addition, Rentzel soils have sandy epipedons of 51 to 102 cm (20 to 40 in) thick.
Depcor soils have sandy epipedons 51 to 102 cm (20 to 40 in) thick.
Kenney soils contain less than 5 percent plinthite.
Landman soils are deeper than 152 cm (60 in) to the horizon containing more than 5 percent plinthite.
Padina soils do not plinthite and are dry for more than 90 cumulative days in most years.
Pickton soils lack horizons that contain 5 percent or more plinthite.
GEOGRAPHIC SETTING:
Parent material: sandy and loamy materials derived from alluvium
Landscape: Coastal Plane
Landform: interfluves
Slope: 0 to 8 percent
Mean annual air temperature range: 19.5 to 20.6 degrees C (degrees F)
Mean annual precipitation range: 1219 to 1473 mm (48 to 58 in)
Precipitation Pattern: Rainfall is fairly uniform throughout the year with slight peaks in the spring and fall months.
Frost-free period: 240 to 300 days
Elevation: 8 to 46 m (26 to 151 ft)
GEOGRAPHICALLY ASSOCIATED SOILS: These are the competing
Depcor series and the
Segno,
Splendora,
Sorter, and
Waller series.
Depcor soils are on slightly lower side slopes.
Segno soils are on similar positions and lack thick sandy A horizons.
Splendora,
Sorter, and
Waller soils are on lower wetter positions and do not sandy surface layers.
DRAINAGE AND PERMEABILITY: moderately well drained. Runoff is high due to saturation in the E horizon. In wet seasons, these soils are saturated in and just above the Bt horizon for periods from 2 to 4 months.
USE AND VEGETATION: Most areas are in forest. Some cleared areas are used for corn, truck crops, and pasture. Native vegetation includes loblolly, shortleaf, and longleaf pines, red oak, white oak, hickory, blackgum, and sweetgum. Understory includes thick stands about 3 to 4.6 m (10 to 15 ft) high of such plants as yaupon, sweet bay, blackjack oak, wax myrtle, sumac, wild grape, and American beautyberry.
DISTRIBUTION AND EXTENT: Southern Coastal Plains of Texas. Moderately extensive.
MLRA SOIL SURVEY REGIONAL OFFICE (MO) RESPONSIBLE: Temple, Texas
SERIES ESTABLISHED: Harris County, Texas; 1973.
REMARKS: These soils have characteristics of an aquic subgroup and would be classified as Grossarenic Plinthaquic Paleudalfs if the subgroup were recognized.
Diagnostic horizons and features recognized in this pedon are:
Ochric epipedon - 0 to 119 cm (0 to 47 in)
Albic horizon - 18 to 119 cm (7 to 47 in)
Grossarenic feature - 0 to 119 cm in loamy fine sand or coarser (0 to 47 in)
Argillic horizon - 119 to 178 cm (47 to 70 in)
Plinthic feature-119 to 178 cm (47 to 70 in) contains more than 5 percent plinthite
Additional Comments: Data from type location S96TX339002. Particle-size analysis, salinity and sodicity tests were performed at NSSL.
Taxonomic Version: Keys to Soil Taxonomy, Eleventh Edition, 2010
National Cooperative Soil Survey
U.S.A.