IDENTIFIERS

Current Taxon Name (Soil Name): Segno

OSD

Series Extent

User Site ID: S1964TX339003

User Pedon ID: 64TX339003

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 40A4458

NCSS Pedon Lab Data NASIS Record ID - 40611

Print Date: 11/21/2024

LOCATION

Location In Web Soil Survey

AOI is roughly a square mile and pedon is marked in the center.

Location in SoilWeb

Location in Google Maps

Std. Latitude: 30.2316666

Std. Longitude: -95.4216690

Datum: WGS84

Location Description: 6.1 mi S of intersection of Intst. Hwy 45 & Texas Hwy 105 at Conroe, TX.

State: Texas

County: TX339—Montgomery

PEDON

Describers Name: G.S. Mckee

Current Taxonomic Class: Fine-loamy, siliceous, thermic Plinthic Paleudalfs

Current Taxon Kind: series

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from SSL-CMS data

Pedon #: 3

Correlated Information:

Soil Name - Segno

Classificaton Date - 7/30/2008

Moisture Class - udic

Sampled As Information:

Soil Name - Segno

Classificaton Date - 5/1/1964

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Slope Shape Down: convex

Runoff: low

Drainage Class: moderately well

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/1/1964 (actual site observation date)

Surface Cover Properties:

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: water erosion

Setting and Climate
Slope	Slope Length USLE	Upslope Length	Elev.	Corr. Elev	Aspect	MAP	REAP	FFD	MAAT	MSAT	MWAT	MAST	MSST	MWST	MFFP	PE Index	Climate Station ID	Climate Station Name	Climate Station Type
%	m				degrees	mm	mm		C						mm
1	—	—	57	—		—	—	—	—	—	—	—	—	—	—	—	—	—	—

1A1—0 to 15 centimeters (0.0 to 5.9 inches); very dark grayish brown (10YR 3/2) interior, grayish brown (10YR 5/2) interior, dry; loamy fine sand; soft, very friable, nonsticky; fragments; strongly acid, pH 5.5, hellige-truog; clear irregular boundary. Lab sample # 40A34091. structureless but slightly cohesive & contains a few wormcasts; plentiful tree, shrub and grass roots.

1A2—15 to 41 centimeters (5.9 to 16.1 inches); light yellowish brown (10YR 6/4) interior, very pale brown (10YR 7/4) interior, dry; loamy fine sand; very friable, nonsticky; fragments; moderately acid, pH 5.7, hellige-truog; clear irregular boundary. Lab sample # 40A34092. structureless but contains many fine continuous pores and few wormcasts and filled wormholes (with darker brn) up to 1cm dia.; plentiful tree, shrub and grass roots.

1B21t—41 to 53 centimeters (16.1 to 20.9 inches); yellowish brown (10YR 5/6) interior, brownish yellow (10YR 6/6) interior, dry; sandy clay loam; weak fine blocky, and structureless subangular blocky structure; hard, friable, slightly sticky; 1 percent worm casts; fragments; moderately acid, pH 5.8, hellige-truog; gradual boundary. Lab sample # 40A34093. crushed soil is about 1/2 chip higher value than outsides of peds; contains plentiful roots & many continuous fine pores; occ. strongly cemented subangular FE-Mn around which are distinct yllwsh red (when moist) medium-sized mottles.; few worm casts concentrations

1B22t—53 to 79 centimeters (20.9 to 31.1 inches); yellowish brown (10YR 5/6) interior, brownish yellow (10YR 6/6) interior, dry; sandy clay loam; weak medium blocky, and structureless subangular blocky structure; hard, friable, moderately sticky; 0.5 fine tubular pores; 1 percent worm casts; fragments; diffuse boundary. Lab sample # 40A34094. contains occasional strongly cemented brwnsh Fe-Mn up to about 1cm dia.; few worm casts concentrations

1B23t—79 to 107 centimeters (31.1 to 42.1 inches); yellowish brown (10YR 5/6) interior, brownish yellow (10YR 6/6) interior, dry; sandy clay loam; weak medium blocky, and structureless subangular blocky structure; 15 percent clay films; fragments; moderately acid, pH 5.7, hellige-truog; diffuse boundary. Lab sample # 40A34095. red mottles are medium-sized and coarse; the red mottles comprise about 10% of the mass; contains a few tree roots.; few clay films surface features; patchy - phpvsfiid 213428; patchy - phpvsfiid 213428

1B24t—107 to 124 centimeters (42.1 to 48.8 inches); sandy clay loam; weak medium and coarse blocky structure; 15 percent clay films; fragments; moderately acid, pH 5.7, hellige-truog; diffuse boundary. Lab sample # 40A34096. same colors as above, but contains more of the coarse red mottles than of medium, and contains occasional light gray mottles; red mottles are slightly harder than in two layers just above.; few clay films surface features; patchy - phpvsfiid 213429; patchy - phpvsfiid 213429

1B25t—124 to 145 centimeters (48.8 to 57.1 inches); sandy clay loam; fragments; strongly acid, pH 5.5, hellige-truog; diffuse boundary. Lab sample # 40A34097. similar in texture as above, except about 5% of light gray mottles that are longer vert. than horiz.; the soil is softer in the vert. gry soil than in the rddsh & brnsh yllw mat.; the red mott. have interiors that are incipient wkly cem.

1B26t—145 to 180 centimeters (57.1 to 70.9 inches); sandy clay loam; weak blocky structure; 15 percent clay films; fragments; strongly acid, pH 5.5, hellige-truog; diffuse boundary. Lab sample # 40A34098. promntly. & coarsely mott. red, yllwsh red, gry,& brnsh yllw SCL; weak bky struc. weakly cem. & diff. to brk betwn the fing., the rddsh mat. is the hardest of the soil, brittle; weakly cemented Fe-Mn about 3-5mm dia comprise the centers of r; few clay films surface features; patchy - phpvsfiid 213430; patchy - phpvsfiid 213430

1B27t—180 to 206 centimeters (70.9 to 81.1 inches); fragments; moderately acid, pH 5.8, hellige-truog. Lab sample # 40A34099. similar to above layer, soil mater. is softer than the red mater. app. the moisture mvoes thru the fry mater.; the red mott. are weakly cem. to he extent they require extreme press. betwn fingers& thumb. some require a tool to be broken.

1B28t—206 to 236 centimeters (81.1 to 92.9 inches); fragments. Lab sample # 40A34100. same as layer above; this layer divided for sampling only.