*** Primary Characterization Data ***
Pedon ID: 91VI020011( St. John, Virgin Islands )Print Date: Apr 29 2025 7:32AM

Sampled as on Sep 1, 1991:Maho Bay ; Loamy, mixed, isohyperthermic, shallow Typic Haplustoll
Revised to correlated:Maho Bay ; Loamy, mixed, superactive, isohyperthermic, shallow Typic Haplustolls
United States Department of Agriculture
SSL-ProjectRP91VI270   ST JOHN, VIRGIN ISLANDS-REFERENCENatural Resources Conservation Service
-Site IDS1991VI020011   Lat: 18° 21' 0.00" north  Long: 64° 44' 43.99" west  MLRA: 271National Soil Survey Center
-Pedon No. 91P1199Soil Survey Laboratory
-General Methods 1B1A, 2A1, 2BLincoln, Nebraska 68508-3866
LayerHorizonOrig HznDepth (cm)Field Label 1Field Label 2Field Label 3Field TextureLab Texture
 
91P07980AA0-18CL L
91P07981BwBw18-29CL L
91P07982CrCR29-40SIL
Pedon Calculations
Calculation NameResultUnits of Measure
 
CEC Activity, CEC7/Clay, Weighted Average0.99(NA)
Clay, carbonate free, Weighted Average24% wt
Weighted Particles, 0.1-75mm, 75 mm Base54% wt
Volume, >2mm, Weighted Average38% vol
Clay, total, Weighted Average24% wt
 
Weighted averages based on control section: 0-29 cm
PSDA  &  Rock Fragments-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18-
 
(- - - - - Total - - - - - -)(- - Clay - - -)(- - - - Silt - - - - -)(- - - - - - - - - - - - Sand - - - - - - - - - - - -)( Rock Fragments   (mm) )
LabClaySiltSandFineCO3FineCoarseVFFMCVC(- - - - - - - - Weight - - - - - - - -)>2 mm
Text-<.002.05<<.002.02.05.10.25.512520.1-wt %
Depthure.002-.05-2.0002.002-.02-.05-.10-.25-.50-1-2-5-20-7575whole
Layer(cm)HorzPrep(- - - - - - - - - - - - - - - - - - - - - - - - - - % of <2mm Mineral Soil - - - - - - - - - - - - - - - - - - - - - - - - - - -)(- - - - - - - % of <75mm - - - - - -)soil
3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3A1a1a3B13B13B1
 
91P079800-18ASl26.147.426.535.212.25.33.64.46.56.781323935
91P0798118-29BwSl20.449.530.134.215.35.03.03.87.910.4204387875
91P0798229-40CrSsil19.857.123.137.219.98.83.33.44.92.7919508388


*** Primary Characterization Data ***
Pedon ID: 91VI020011( St. John, Virgin Islands )Print Date: Apr 29 2025 7:32AM
Sampled As:Maho BayLoamy, mixed, isohyperthermic, shallow Typic Haplustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1199
Bulk Density  &  Moisture-1--2--3--4--5--6--7--8--9--10--11--12--13--14-
 
(Bulk Density)Cole(- - - - - - - - - - - Water Content - - - - - - - - - - -)( Air Dry-Oven Dry )WRDAggst
33OvenWhole6103315001500 kPa(- - - - Ratio - - - -)WholeStabl(- - Ratio/Clay - -)
DepthkPaDrySoilkPakPakPakPaMoistCorrectedSoil2-0.5mm CEC71500 kPa
Layer(cm)HorzPrep (- - - g cm-3 - - -) (- - - - - - - - - - - - pct of < 2mm - - - - - - - - - - - -) cm3 cm-3%
3C2a1a3D18D18D1
 
91P079800-18AS15.21.0301.110.58
91P0798118-29BwS8.51.0180.780.42
91P0798229-40CrS7.11.0150.560.36
Carbon  &  Extractions-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18--19-
 
(- - - - - Total - - - - -)EstOCC/N(- - - Dith-Cit Ext - - -)(- - - - - - Ammonium Oxalate Extraction - - - - - -)(- - - Na Pyro-Phosphate - - -)
DepthCNSOC(WB)RatioFeAlMnAl+½FeODOEFeAlSiMnCFeAlMn
Layer(cm)HorzPrep(- - - - - - - - - - % of <2 mm - - - - - - - - - -)(- - - - - - - - - - - - - - - - - - - % of < 2mm - - - - - - - - - - - - - - - - -)mg kg-1(- - - - - - % of < 2mm - - - - -)
6B3a6A1c
 
91P079800-18AS0.3595.68
91P0798118-29BwS0.1382.32
91P0798229-40CrS0.0550.83
CEC  &  Bases-1--2--3--4--5--6--7--8--9--10--11--12--13--14-
 
(- - - - - - NH4OAC Extractable Bases - - - - -)CEC8CEC7ECEC(- - - - Base - - - -)
SumAcid-ExtrKClSumNH4BasesAl(- Saturation -)
DepthCaMgNaKBasesityAlMnCatsOAC+AlSatSumNH4OAC
Layer(cm)HorzPrep(- - - - - - - - - - - - - - - - - cmol(+) kg-1 - - - - - - - - - - - - - - - - - - -)mg kg-1(- - - - cmol(+) kg-1 - - -)(- - - - - - - - % - - - - - - - -)
6N2e6O2d6P2b6Q2b6H5a5A3a5A8b5C35C1
 
91P079800-18AS18.19.50.70.228.57.335.829.08098
91P0798118-29BwS3.25.50.70.29.611.421.016.04660
91P0798229-40CrS0.44.50.50.15.58.714.211.03950


*** Primary Characterization Data ***
Pedon ID: 91VI020011( St. John, Virgin Islands )Print Date: Apr 29 2025 7:32AM
Sampled As:Maho BayLoamy, mixed, isohyperthermic, shallow Typic Haplustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1199
Salt-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18--19--20-
 
(- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Water Extracted From Saturated Paste - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -)1:2
TotalElecElecExch
DepthCaMgNaKCO3HCO3FClPO4BrOACSO4NO2NO3H2OSaltsCondCondNaSAR
Layer(cm)HorzPrep(- - - - - mmol(+) L-1 - - - - -)(- - - - - - - - - - - - - - - - - - - - - - mmol(-) L-1 - - - - - - - - - - - - - - - - - - - -)(- - - - % - - - -)(- - dS m-1 - -)%
 
91P079800-18AS2
91P0798118-29BwS4
91P0798229-40CrS5
pH  &  Carbonates-1--2--3--4--5--6--7--8--9--10--11-
 
(- - - - - - - - - - - - - - - - - - pH - - - - - - - - - - - - - - - - -)(- - Carbonate - -)(- - Gypsum - - -)
CaCl2As CaCO3As CaSO4*2H2OResist
Depth0.01MH2OSat<2mm<20mm<2mm<20mmohms
Layer(cm)HorzPrepKCl1:21:1PasteOxidNaF(- - - - - - - - - - - - % - - - - - - - - - - -)cm-1
4C1a2a4C1a2a
 
91P079800-18AS6.06.2
91P0798118-29BwS4.55.0
91P0798229-40CrS4.24.9
Phosphorus-1--2--3--4--5--6--7--8--9--10--11--12-
 
(- - - - - - - - - - - - - - - - - - - - - - - Phosphorus - - - - - - - - - - - - - - - - - - - - -)KCl
MelanicNZAcidAnion Exch ResinBrayBrayOlsenH2OCitricMehlichExtr
DepthIndexOxalAvailableCapacity12AcidIIINO3
Layer(cm)HorzPrep%(- - - - - - - - - - - - - - - - - - - - - - - - - - - mg kg-1 - - - - - - - - - - - - - - - - - - - -)
6S3
 
91P079800-18AS10.0
91P0798118-29BwS3.0
91P0798229-40CrS1.0


*** Primary Characterization Data ***
Pedon ID: 91VI020011( St. John, Virgin Islands )Print Date: Apr 29 2025 7:32AM
Sampled As:Maho BayLoamy, mixed, isohyperthermic, shallow Typic Haplustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1199
Clay Mineralogy (<.002 mm)-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18-
X-RayThermalElementalEGMEInter
SiO2Al2O3Fe2O3MgOCaOK2ONa2ORetnpreta
DepthFract7A2i 7C3 tion
Layer(cm)Horzion( - - - - - - - - - peak size - - - - - - - - - - )(- - - - - - - - - % - - - - - - - - - -)(- - - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - - - - -)mg g-1
91P0798118.0-29.0BwtclyKK 3VR 3MI 3VC 1 197.6 2.0

FRACTION INTERPRETATION:
tcly - Total Clay <0.002 mm

MINERAL INTERPRETATION:
KK KaoliniteMI MicaVC Vermiculite-ChloriteVR Vermiculite

RELATIVE PEAK SIZE:5 Very Large4 Large3 Medium2 Small1 Very Small6 No Peaks


*** Primary Characterization Data ***
Pedon ID: 91VI020011( St. John, Virgin Islands )Print Date: Apr 29 2025 7:32AM
Sampled As:Maho BayLoamy, mixed, isohyperthermic, shallow Typic Haplustoll
USDA-NRCS-NSSC-Soil Survey Laboratory;Pedon No.  91P1199
Sand - Silt Mineralogy (2.0-0.002 mm)-1--2--3--4--5--6--7--8--9--10--11--12--13--14--15--16--17--18-
X-RayThermalOpticalEGMEInter
Tot ReGrain CountRetnpreta
DepthFract 7B1a2 tion
Layer(cm)Horzion( - - - - - - - - peak size - - - - - - - - - )(- - - - - - - - % - - - - - - - - - -)(- - - - - - - - - - - - - - - - - - - - % - - - - - - - - - - - - - - - - - -) mg g-1
91P0798118.0-29.0Bwvfs 1OW 83FP 14QZ 1PR 1PO trBT tr
MI trOP trGS tr

FRACTION INTERPRETATION:
vfs - Very Fine Sand 0.05-0.1 mm

MINERAL INTERPRETATION:
BT BiotiteFP Plagioclase FeldsparGS GlassMI MicaOP Opaques
OW Other Weatherable MineralsPO Plant OpalPR PyroxeneQZ Quartz
NSSC SSL Report Creation