IDENTIFIERS

Current Taxon Name (Soil Name): Maricao

OSD

Series Extent

User Site ID: S2001PR153004

User Pedon ID: S2001PR153004

Vegetation Plot ID: S2001PR153004

Lab Information:

Certified Lab Pedon Description - yes

Lab Source ID - SSL

Lab Pedon # - 01N1036

NCSS Pedon Lab Data NASIS Record ID - 14424

Print Date: 11/23/2024

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: 18.1166668

Std. Longitude: -66.8091660

Datum: WGS84

Location Description: Maricao clay, 20 to 60 percent slopes; approximately 5.5 miles northeast of the city of Yauco from the intersection of P.R. Hwy. 128 and P.R. Hwy. 372; about 1,000 feet northeast of Hacienda Mogotes farmstead; about 200 feet east of dirt road on coffee plantation; Yauco Municipality. (USGS Yauco topographic quadrangle (1966); lat. 18 degrees 06 minutes 52.9seconds N. and 66 degrees 48 minutes 29.3 seconds W.)

Country: US—United States

State: Puerto Rico

County: PR153—Yauco

MLRA: 270—Humid Mountains and Valleys

Non-MLRA Soil Survey Area: PR684—Mayaguez Area, Puerto Rico Western PartPR787—San German Area, Southwestern Puerto Rico

7.5 Minute USGS Quad: TPR0073—Yauco, Puerto Rico

PEDON

Describers Name: Jorge L. Lugo; Samuel Rios; Carmen L. Santiago; Gregory R. Brannon; Robert Engel

Current Taxonomic Class: Very-fine, mixed, subactive, isothermic Typic Haplohumults

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: NASIS

Pedon #: 4

Correlated Information:

Soil Name - Maricao

PSC - 29 to 74 cm.

Classificaton Date - 2/27/2009

Classifier - Samuel Rios

Soil Taxonomic Edition - eleventh edition

Moisture Class - perudic

Moisture Subclass - udic

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

Field Measured Properties: 21.28 celsius of soil temperature at 50 cm (mean) and 20.03 celsius of mean winter soil temperature at 50 cm and 22.14 celsius of mean summer soil temperature at 50 cm and 2.11 celsius of isotivity value

SITE

Parent Material: clayey residuum weathered from basalt

Landscape: mountain range

Landform: mountain

Geomorphic Component Mountains: mountaintop

Hill Slope Profile: shoulder

Slope Position: lower third

Slope Complexity: complex

Slope Shape Across: convex

Slope Shape Down: linear

Drainage Pattern: dendritic

Runoff: high

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Bedrock: strong weathered basalt

Geology: Tertiary -maestrichtian-campanian member of the Maricao Formation formation in the Tkm group.

Surface Fragments: 3.00 percent 2- to 75-millimeter volcanic, unspecified,

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 3/13/2001 (actual site observation date)

Data Collector: JLL, SRT, GB, CLS

Air Photo ID: 8A

Surface Water Kind: none observed

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - close-grown crop

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Current Weather - partly cloudy

Vegetation Plot Plants
Plant Symbol	Scientific Name	National Vernacular Name	Plant Type Group	Canopy Cover %	Vegetation Stata Level
COFFE	Coffea	coffee	—	—	—

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon argillic horizon	0—13 29—74	5—13—18 28—45—46

Site Soil Temperature
Site Obs. Date	Depth	Sensor Kind	Temperature
	cm		C
3/13/2001 3/13/2001 3/13/2001 3/13/2001 3/13/2001	100 50 20 10 5	— — — — —	20 21 21 21 20

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
14	—	—	870	—	210	2110	860	365	19.1	20.2	17.4	21.3	22.1	20	—	—	2045	Monte Guilarte Station	NRCS-NWCC SCAN

Ap—0 to 13 centimeters (0.0 to 5.1 inches); dark brown (7.5YR 3/4) broken face clay; 7 percent sand; 30 percent silt; 64 percent clay; strong coarse granular, and strong medium granular structure; slightly hard, firm, slightly sticky, moderately plastic; moderate permeability; low excavation difficulty; common medium roots throughout and common fine roots throughout; many fine tubular pores; 3 percent by volume 2-50-75 millimeter volcanic, unspecified fragments; noneffervescent, by hcl, 1n; extremely acid, pH 4.2, pH meter; clear smooth boundary. Lab sample # 01N05263; moist when described; observed in pit, large or quarry

AB—13 to 29 centimeters (5.1 to 11.4 inches); dark reddish brown (5YR 3/4) broken face clay; 10 percent sand; 35 percent silt; 55 percent clay; moderate medium subangular blocky, and moderate coarse subangular blocky structure; slightly hard, firm, slightly sticky, moderately plastic; moderate permeability; low excavation difficulty; common medium roots throughout and common fine roots throughout and few coarse roots throughout; many fine tubular pores; 5 percent by volume 2-50-75 millimeter volcanic, unspecified fragments; noneffervescent, by hcl, 1n; strongly acid, pH 5.1, pH meter; abrupt smooth boundary. Lab sample # 01N05264; moist when described; observed in pit, large or quarry

Bt1—29 to 48 centimeters (11.4 to 18.9 inches); dark reddish brown (5YR 3/4) broken face clay; 6 percent sand; 30 percent silt; 64 percent clay; strong medium subangular blocky, and strong coarse subangular blocky structure; slightly hard, firm, slightly sticky, moderately plastic; moderate permeability; low excavation difficulty; few medium roots throughout and few fine roots throughout and common coarse roots throughout; many fine irregular pores; 35 percent distinct clay films on all faces of peds; 2 percent by volume 2-50-75 millimeter volcanic, unspecified fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.9, pH meter; clear wavy boundary. Lab sample # 01N05265; moist when described; observed in pit, large or quarry

Bt2—48 to 74 centimeters (18.9 to 29.1 inches); dark reddish brown (5YR 3/4) broken face clay; 6 percent sand; 28 percent silt; 65 percent clay; moderate coarse subangular blocky structure; slightly hard, firm, slightly sticky, moderately plastic; moderate permeability; low excavation difficulty; few medium roots throughout and few fine roots throughout; many fine irregular pores; 35 percent distinct clay films on all faces of peds; 3 percent by volume 2-50-75 millimeter volcanic, unspecified fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.5, pH meter; clear wavy boundary. Lab sample # 01N05266; moist when described; observed in pit, large or quarry

BC1—74 to 89 centimeters (29.1 to 35.0 inches); red (2.5YR 4/6) broken face clay; 15 percent sand; 39 percent silt; 46 percent clay; weak medium subangular blocky, and weak coarse subangular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; moderate permeability; low excavation difficulty; few medium roots throughout and few fine roots throughout; many fine irregular pores; 5 percent distinct clay films on all faces of peds and 5 percent distinct clay films on surfaces along pores; 10 percent fine prominent noncoherent cemented dark brown (10YR 3/3), moist, iron-manganese masses on faces of peds; 5 percent by volume 2-50-75 millimeter iron-manganese concretions fragments and 8 percent by volume 2-50-75 millimeter volcanic, unspecified fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 5.0, pH meter; clear wavy boundary. Lab sample # 01N05267; moist when described; observed in pit, large or quarry. about 10 percent, by volume, saprolite material.

BC2—89 to 117 centimeters (35.0 to 46.1 inches); red (2.5YR 4/6) broken face silty clay loam; 18 percent sand; 43 percent silt; 39 percent clay; weak medium subangular blocky, and weak coarse subangular blocky structure; slightly hard, friable, slightly sticky, moderately plastic; moderate permeability; low excavation difficulty; few medium roots throughout and few fine roots throughout; common very fine irregular and few medium irregular and common fine irregular and few coarse irregular pores; 5 percent distinct clay films on surfaces along pores and 10 percent distinct clay films on all faces of peds; 10 percent fine prominent noncoherent cemented dark brown (10YR 3/3), moist, iron-manganese masses on faces of peds; 5 percent by volume 2-50-75 millimeter iron-manganese concretions fragments and 10 percent by volume 2-50-75 millimeter volcanic, unspecified fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.8, pH meter; abrupt irregular boundary. Lab sample # 01N05268; moist when described; observed in pit, large or quarry. about 25 percent, by volume, saprolite material.

C—117 to 160 centimeters (46.1 to 63.0 inches); variegated 25 percent red (2.5YR 4/6) broken face and 25 percent reddish brown (5YR 4/4) broken face and 25 percent brownish yellow (10YR 6/6) broken face and 15 percent yellowish brown (10YR 5/4) broken face and 10 percent yellowish brown (10YR 5/6) broken face clay loam; 21 percent sand; 43 percent silt; 36 percent clay; massive; soft, friable, slightly sticky, moderately plastic; moderate permeability; low excavation difficulty; few very fine roots throughout and few fine roots throughout; many very fine irregular and common medium irregular and many fine irregular and few coarse irregular pores; 15 percent distinct clay films on surfaces along pores; 10 percent fine prominent noncoherent cemented dark brown (10YR 3/3), moist, iron-manganese masses on faces of peds; 5 percent by volume 2-50-75 millimeter iron-manganese concretions fragments and 13 percent by volume 2-50-75 millimeter volcanic, unspecified fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 4.9, pH meter. Lab sample # 01N05269; moist when described; observed in pit, large or quarry. colors are indicative of parent material and are not redoximorphic features.