IDENTIFIERS

Current Taxon Name (Soil Name): La Covana

OSD

Series Extent

User Site ID: S2018PR153003

User Pedon ID: S2018PR153003

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - KSSL

Lab Pedon # - 18N2029

User Project ID: GUAN_004_NEON

Project Name: Guanica Forest

Print Date: 12/6/2025

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: 17.9730250

Std. Longitude: -66.8618280

Datum: WGS84

Country: US—United States

State: Puerto Rico

County: PR153—Yauco

MLRA: 271—Semiarid Mountains and Valleys

Regional Office: SE—Southeast

Non-MLRA Soil Survey Area: PR787—San German Area, Southwestern Puerto Rico

PEDON

Describers Name: Manuel Matos

Current Taxonomic Class: Clayey-skeletal, carbonatic, isohyperthermic Calcic Lithic Petrocalcids

Current Taxon Kind: series

Pedon Purpose: laboratory sampling site

Pedon Record Orgin: NASIS

Sampled As Information:

Soil Name - La Covana

Taxonomic Class - Clayey-skeletal, carbonatic, isohyperthermic Calcic Lithic Petrocalcids

Taxon Kind - series

PSC - 0 to 28 cm.

Classificaton Date - 6/18/2018

Classifier - ASR

Soil Taxonomic Edition - twelfth edition

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

Certification Status: certified

QC Status: level 3

QA Status: level 3

SITE

Parent Material: residuum weathered from limestone

Landscape: karst

Landform: hill

Geomorphic Component Hills: interfluve

Hill Slope Profile: summit

Slope Complexity: complex

Slope Shape Across: convex

Slope Shape Down: convex

Drainage Pattern: karst

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Bedrock: very strongly coherent slight weathered limestone, unspecified at 35cm

Geology: Ponce Limestone formation of the Tpo group.

Surface Fragments: 3.00 percent nonflat angular very strongly coherent cemented 80- to 200-millimeter limestone, unspecified,

Benchmark Soil?: no

RaCA Information:

RaCA Site ID - GUAN_003

DSP Plot ID - SW

Plot Baseline Azimuth - 40

Plot Baseline Length - 9

Plot Width - 40

Plot/Site Set Up By - Center of pit

Plot or Site Recorder - Samuel Rios

VEGETATION

SITE OBSERVATION

Observation Date: 6/18/2018 (actual site observation date)

Data Collector: MMR, ASR

Surface Cover Properties:

Site Obs. Cover Kind 1 - tree cover

Site Obs. Cover Kind 2 - other shrub cover

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
petrocalcic	very strongly coherent	28 - 35	- 7 -

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
ochric epipedon calcic horizon petrocalcic horizon	0—28 9—28 28—35	—28— —19— —7—

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
5	—	—	182.3	—	150	794	—	365	26.2	27.5	24.6	27.9	29.2	26.3	—	—	2067	Bosque Seco Station	NRCS-NWCC-SCAN

A—0 to 9 centimeters (0.0 to 3.5 inches); dark brown (7.5YR 3/2) broken face, very dark gray (10YR 3/1) broken face, moist; gravelly mucky loam; weak very fine granular, and weak fine granular structure; soft, very friable, nonsticky, nonplastic; many very fine roots throughout and few medium roots throughout and common fine roots throughout and few coarse roots throughout; many very fine interstitial and many fine interstitial pores; 5 percent by volume nonflat angular strongly coherent cemented 75-90-150 millimeter limestone, unspecified fragments observed by visual inspection method and 25 percent by volume nonflat angular strongly coherent cemented 2-10-15 millimeter limestone, unspecified fragments observed by visual inspection method; noneffervescent, by hcl, 1n; slightly alkaline, pH 7.5, pH indicator solutions; clear smooth boundary. Lab sample # 18N06130; dry when described; observed in pit, small

Bk—9 to 28 centimeters (3.5 to 11.0 inches); very dark grayish brown (10YR 3/2) broken face, very dark brown (10YR 2/2) broken face, moist; very paragravelly mucky loam; weak very fine granular, and weak fine granular structure; soft, very friable, nonsticky, nonplastic; common very fine roots throughout and few medium roots throughout and common fine roots throughout and few coarse roots throughout; many very fine interstitial and many fine interstitial pores; carbonate, finely disseminated throughout; 20 percent by volume nonflat angular moderately coherent cemented 75-90-100 millimeter limestone, unspecified fragments observed by visual inspection method and 50 percent by volume nonflat angular moderately coherent cemented 10-15-15 millimeter limestone, unspecified fragments observed by visual inspection method; slight effervescence, by hcl, 1n; moderately alkaline, pH 8.0, pH indicator solutions; clear wavy boundary. Lab sample # 18N06131; dry when described; observed in pit, small

Bkkm—28 to 35 centimeters (11.0 to 13.8 inches); light reddish brown (2.5YR 7/3) broken face, pale brown (10YR 6/3) broken face, moist; massive; few very fine roots throughout and few fine roots throughout; few very fine vesicular and few very fine irregular and few very fine tubular and few fine tubular pores; medium reddish yellow (5YR 6/8) and 2 percent fine prominent reddish yellow (5YR 6/8) masses of oxidized iron throughout; 10 percent fine white (10YR 8/1) carbonate nodules throughout and medium white (10YR 8/1); fragments; fourth stage carbonates developed in the fine earth fraction; violent effervescence, by hcl, 1n; moderately alkaline, pH 8.0, pH indicator solutions. Lab sample # 18N06132; dry when described; observed in pit, small

R—35 to 100 centimeters (13.8 to 39.4 inches); fragments.; observed in pit, small