IDENTIFIERS
Current Taxon Name (Soil Name):
Humatas
OSD
Series Extent
User Site ID:
S1994PR097001
User Pedon ID:
S1994PR097001
Lab Information:
Certified Lab Pedon Description -
yes
Lab Source ID -
SSL
Lab Pedon # -
94P0844
NCSS Pedon Lab Data NASIS Record ID -
67015
Print Date:
12/4/2024
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:
18.2111111
Std. Longitude:
-67.1333313
Datum:
WGS84
Location Description:
ARS Research Facility, University of Puerto Rico, Mayaguez.
State:
Puerto Rico
County:
PR097—Mayaguez
MLRA:
270—Humid Mountains and Valleys
Regional Office:
SE—Southeast
MLRA Soil Survey Area:
SE-MAZ—Mayaguez, Puerto Rico
Non-MLRA Soil Survey Area:
PR684—Mayaguez Area, Puerto Rico Western Part
7.5 Minute USGS Quad:
TPR0036—Mayaguez, Puerto Rico
PEDON
Describers Name:
RLV, JRD.
Current Taxonomic Class:
Very-fine, parasesquic, isohyperthermic Typic Haplohumults
Current Taxon Kind:
series
Pedon Type:
map unit inclusion
Pedon Purpose:
research site
Pedon Record Orgin:
Converted from PDP 3.x
Pedon #:
1
Correlated Information:
Soil Name -
Humatas
PSC -
33 to 71 cm.
Classificaton Date -
9/25/2013
Classifier -
Manuel Matos
Soil Taxonomic Edition -
eleventh edition
Moisture Subclass -
udic
Sampled As Information:
Soil Name -
Humatas
Taxonomic Class -
Very-fine, parasesquic, isohyperthermic Typic Haplohumults
Taxon Kind -
series
Classificaton Date -
6/16/1994
Soil Taxonomic Edition -
eleventh edition
Moisture Class -
udic
Moisture SUBClass -
udic
Dynamic Soil Properties:
Erosion Class -
0
Pedoderm Loose Cover Indicator -
no
Hydric:
no
SITE
Landscape:
mountains
Landform:
ridge
Geomorphic Component Hills:
interfluve
Hill Slope Profile:
summit
Slope Position:
upper third
Slope Shape Across:
linear
Slope Shape Down:
convex
Runoff:
medium
Drainage Class:
well
Bedrock:
s strong weathered igneous, fine crystal
Surface Fragments:
0.00 percent
Benchmark Soil?:
no
VEGETATION
SITE OBSERVATION
Observation Date:
6/16/1994 (actual site observation date)
Air Photo ID:
Atlas #40
Surface Cover Properties:
Site Obs. Cover Kind 1 -
grass/herbaceous cover
Pedoderm Loose Cover Indicator -
no
Drained? -
no
Bedded Soil? -
no
Forest Plantation? -
no
Site Erosion Accelerated:
water erosion
Pedon Diagnostic Features
Feature Kind
Feature Depth L-H
Feature Thickness L-RV-H
cm
argillic horizon
33—71
—-
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
3
100
20
45
—
10
—
—
—
—
—
—
—
—
—
—
—
2232
Miradero
SCAN
Ap1—0 to 13 centimeters (0.0 to 5.1 inches); brown (10YR 4/3) crushed clay; 3 percent dark yellowish brown (10YR 4/4) medium faint mottles; moderate medium and coarse granular structure; friable; 21.0 fine roots; fragments; neutral, pH 6.9, hellige-truog; clear smooth boundary. Lab sample # 94P06603. Presumed to be overburden from previous human activity. Well naturalized in place.
Ap2—13 to 20 centimeters (5.1 to 7.9 inches); yellowish brown (10YR 5/4) crushed very gravelly clay; 3 percent brown (7.5YR 4/3) medium distinct mottles; moderate fine subangular blocky structure; friable; 3.0 very fine and fine roots; 50 percent by volume rounded 2-39-75 millimeter igneous, intermediate fragments; slightly alkaline, pH 7.6, hellige-truog; clear smooth boundary. Presumed to be overburden from previous human activity. High pH along with the kind and content of rock fragments is indicative of degraded cement mixture, possibly from foundation.
A—20 to 33 centimeters (7.9 to 13.0 inches); light olive brown (2.5Y 5/3) crushed clay; 3 percent strong brown (7.5YR 4/6) medium prominent mottles; moderate very fine and fine subangular blocky structure; friable; 0.5 fine roots; 3.0 fine pores; 3 percent cylindrical worm casts; fragments; slightly alkaline, pH 7.6, hellige-truog; clear wavy boundary. Lab sample # 94P06604
Bt1—33 to 46 centimeters (13.0 to 18.1 inches); red (2.5YR 4/6) clay; 3 percent light olive brown (2.5Y 5/3) fine prominent and 3 percent brown (10YR 5/3) medium prominent mottles; moderate fine and medium subangular blocky structure; firm; 0.5 fine roots; 3.0 fine and medium vesicular pores; 10 percent faint clay films on faces of peds; fragments; strongly acid, pH 5.3, hellige-truog; clear wavy boundary. Lab sample # 94P06605. discontinuous - phpvsfiid 1195315; discontinuous - phpvsfiid 1195315
Bt2—46 to 71 centimeters (18.1 to 28.0 inches); red (2.5YR 4/6) clay; 3 percent yellowish brown (10YR 5/6) medium prominent mottles; moderate medium subangular blocky structure; firm; 0.5 fine roots; 21.0 fine and medium pores; 30 percent faint clay films on faces of peds; fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # 94P06606. discontinuous - phpvsfiid 1195316; discontinuous - phpvsfiid 1195316
BC1—71 to 104 centimeters (28.0 to 40.9 inches); light reddish brown (2.5YR 6/4) clay; 3 percent yellowish brown (10YR 5/6) medium prominent and 3 percent very pale brown (10YR 8/2) fine prominent mottles; weak coarse subangular blocky structure; firm; 0.5 very fine roots; 10 percent prominent yellow (10YR 7/6) clay films on faces of peds; fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # 94P06607. patchy - phpvsfiid 1195317; patchy - phpvsfiid 1195317
BC2—104 to 132 centimeters (40.9 to 52.0 inches); yellow (10YR 7/6) clay; 3 percent light reddish brown (2.5YR 6/4) medium prominent and 3 percent very pale brown (10YR 8/2) medium distinct mottles; weak medium subangular blocky structure; firm; fragments; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # 94P06608
C—132 to 165 centimeters (52.0 to 65.0 inches); silty clay; firm; fragments; very strongly acid, pH 4.8, hellige-truog. Lab sample # 94P06609. variegated white, yellow, brown and red highly weathered saprolite; rock structure; crushes to silty clay.