IDENTIFIERS

Current Taxon Name (Soil Name): Cerro Gordo

OSD

Series Extent

User Site ID: S2007PR125007R

User Pedon ID: S2007PR125007R

Transect:

User Transect ID - 2007-003T

Transect Stop Number - 7

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 07N0765

NCSS Pedon Lab Data NASIS Record ID - 19595

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: 18.1511669

Std. Longitude: -66.9935532

Datum: WGS84

Location Description: Cerro Gordo mucky peat, 5 to 20 percent slopes; approximately 0.2 mile south from the intersection of P.R. Hwy. 120 and the main entrance of the Maricao State Forest Headquarters (Campamento Buenavista) on forest trail road cut; San German Municipality. (USGS Maricao topographic quadrangle (1960); lat. 18 degrees 09 minutes 4.2 seconds N., long. 66 degrees 59 minutes 36.8 seconds W.)

Map Unit: NcD2—Nipe clay, 5 to 20 percent slopesCjD—Cerro Gordo mucky peat, 2 to 20 percent slopes

State: Puerto Rico

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

PEDON

Describers Name: Samuel Rios

Current Taxonomic Class: Very-fine, ferruginous, isothermic Typic Haploperox

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Pedon #: 7

Correlated Information:

Soil Name - Cerro Gordo

PSC - 25 to 100 cm.

Classificaton Date - 9/27/2007

Soil Taxonomic Edition - tenth edition

Moisture Class - perudic

Moisture Subclass - udic

Sampled As Information:

Soil Name - Nipe

Classificaton Date - 4/27/2007

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: iron-rich residuum weathered from serpentinite

Landscape: serpentinite mountains

Landform: ridge

Geomorphic Component Mountains: mountaintop

Slope Position: upper third

Slope Complexity: simple

Slope Shape Across: convex

Slope Shape Down: linear

Drainage Pattern: dendritic

Runoff: low

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Geology: Cretaceous? member of the Serpentine (remnant Of Lateritic Residual Soil On Serpentini formation in the Ks group.

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 4/27/2007 (actual site observation date)

Air Photo ID: 3C

Surface Water Kind: none observed

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - intermixed conifers and hardwoods

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon oxic horizon	8—28 28—206	13—20—23 147—178—223

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
12	—	—	778	—	260	2366	—	365	21.9	23.2	20.5	—	—	—	—	—	665908	Maricao 2SSW	Weather (NOAA)

Oi—0 to 8 centimeters (0.0 to 3.1 inches); black (5YR 2/1) broken face muck; weak very fine granular structure; soft, friable, nonsticky, nonplastic; slow permeability; 6.0 very fine roots throughout and 6.0 fine roots throughout; 6.0 very fine irregular and 6.0 medium irregular and 6.0 fine irregular pores; fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 5.0, hellige-truog; abrupt smooth boundary. Lab sample # 07N04627; wet when described; observed in cut

A—8 to 28 centimeters (3.1 to 11.0 inches); dark reddish brown (5YR 3/3) broken face gravelly clay; 20 percent sand; 30 percent silt; 50 percent clay; moderate fine granular, and moderate very fine granular structure; soft, friable, slightly sticky, slightly plastic; moderate permeability; 6.0 very fine roots throughout and 6.0 fine roots throughout; 6.0 very fine irregular and 6.0 fine irregular pores; 20 percent by volume 2-50-75 millimeter ironstone nodules fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 5.0, hellige-truog; diffuse smooth boundary. Lab sample # 07N04628; wet when described; observed in cut

Bo1—28 to 58 centimeters (11.0 to 22.8 inches); dark reddish brown (2.5YR 3/3) broken face clay; 25 percent sand; 15 percent silt; 60 percent clay; weak fine subangular blocky, and weak very fine subangular blocky structure; soft, friable, slightly sticky, slightly plastic; moderate permeability; 3.0 very fine roots throughout and 3.0 fine roots throughout; 3.0 very fine irregular and 0.5 very fine tubular and 3.0 fine irregular pores; 12 percent by volume 2-50-75 millimeter ironstone nodules fragments; noneffervescent, by hcl, 1n; very strongly acid, pH 5.0, hellige-truog; clear wavy boundary. Lab sample # 07N04629; wet when described; observed in cut

Bo2—58 to 102 centimeters (22.8 to 40.2 inches); red (2.5YR 4/6) broken face gravelly clay; 25 percent sand; 25 percent silt; 50 percent clay; moderate very fine subangular blocky, and moderate fine subangular blocky structure; soft, friable, slightly sticky, slightly plastic; moderate permeability; 3.0 very fine roots throughout and 3.0 fine roots throughout; 0.5 very fine tubular and 3.0 very fine irregular and 3.0 fine irregular pores; 2 percent faint red (10R 4/6), moist, plinthite nodules with clear boundaries throughout and 5 percent faint ferriargillans with clear boundaries on faces of peds; 20 percent by volume 2-50-75 millimeter ironstone nodules fragments; noneffervescent, by hcl, 1n; strongly acid, pH 5.5, hellige-truog; clear wavy boundary. Lab sample # 07N04630; wet when described; observed in cut

Bo3—102 to 132 centimeters (40.2 to 52.0 inches); red (2.5YR 4/8) broken face gravelly clay; 25 percent sand; 30 percent silt; 45 percent clay; weak very fine subangular blocky, and weak fine subangular blocky structure; slightly hard, firm, slightly sticky, slightly plastic; moderate permeability; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 very fine tubular and 3.0 very fine irregular and 3.0 fine irregular pores; 5 percent faint ferriargillans with clear boundaries on faces of peds; 25 percent by volume 2-50-75 millimeter ironstone nodules fragments; noneffervescent, by hcl, 1n; moderately acid, pH 6.0, hellige-truog; clear wavy boundary. Lab sample # 07N04631; wet when described; observed in cut

Bo4—132 to 206 centimeters (52.0 to 81.1 inches); yellowish red (5YR 4/6) broken face clay; 25 percent sand; 30 percent silt; 45 percent clay; weak very fine subangular blocky, and weak fine subangular blocky structure; slightly hard, firm, slightly sticky, slightly plastic; moderate permeability; 0.5 very fine roots throughout and 0.5 fine roots throughout; 0.5 very fine tubular and 3.0 very fine irregular and 3.0 fine irregular pores; 15 percent by volume 2-50-75 millimeter ironstone nodules fragments; noneffervescent, by hcl, 1n; moderately acid, pH 6.0, hellige-truog. Lab sample # 07N04632; wet when described; observed in auger, bucket