IDENTIFIERS

Current Taxon Name (Soil Name): Palau

OSD

Series Extent

User Site ID: S79PB935001

User Pedon ID: S79PB935001

Lab Information:

Certified Lab Pedon Description - no

Lab Source ID - SSL

Lab Pedon # - 80P0008

NCSS Pedon Lab Data NASIS Record ID - 47238

Print Date: 11/21/2024

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: 7.3596444

Std. Longitude: 134.5339611

Datum: WGS84

Location Description: Palau; 0.3 mi N from intersection of main road to airport and road to Nekken 470 feet E and 3015 feet S.

PEDON

Describers Name: N. Babik, C. Smith, S. Shiro

Current Taxonomic Class: Very-fine, halloysitic, isohyperthermic Typic Haploperox

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: Converted from SSL-CMS data

Pedon #: 1

Correlated Information:

Soil Name - Palau

PSC - 25 to 100 cm.

Classificaton Date - 6/30/2007

Soil Taxonomic Edition - tenth edition

Moisture Class - perudic

Moisture Subclass - udic

Sampled As Information:

Soil Name - Palau

Classificaton Date - 10/1/1979

Dynamic Soil Properties:

Erosion Class - 1

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: saprolite derived from basalt over andesite over tuff breccia over bedded tuff

Landscape: island, upland

Landform: hill

Slope Complexity: complex

Runoff: high

Drainage Class: well

Flooding: none flooding

Ponding: none ponding

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 10/1/1979 (actual site observation date)

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Site Obs. Cover Kind 2 - rangeland, savanna

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Site Erosion Accelerated: water erosion

Pedon Horizon Lab Results - 1
Horizon	Top Depth	Bottom Depth	Sample ID	Data Collector	Total Clay	CaCO3 Clay	Total Silt	Fine Silt	Co. Silt	Total Sand	Total Sand Method	VC Sand	Co. Sand	Med. Sand	Fine Sand	VF Sand	VF Sand Method	Texture Class - Field Lab	Rubbed Fiber	Unrubbed Fiber	pH H2O
	cm	cm			%	%	%	%	%	%		%	%	%	%	%			%	%
A A A BA BA BA Bo1 Bo1 Bo1 Bo2 Bo2 Bo2 Bo3 Bo3 Bo3 BC BC BC	0 0 0 10 10 10 28 28 28 56 56 56 79 79 79 106 106 106	10 10 10 28 28 28 56 56 56 79 79 79 107 107 107 200 200 200	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —

Pedon Horizon Lab Results - 2
Horizon	Top Depth	Bottom Depth	Sample ID	pH CaCl2	pH NaF	pH Ox	Delta pH	LL	PL	PI	Atter. Samp. Cond.	COLE	Pot. Acidity	Ca + Mg - Meh 2	K	Ca + Mg - Sat. Paste	KCl Extract. Acidity	Base Sat. - Meh 2	CEC-7	CEC-8.2
	cm	cm						%	%	%		cm/cm	meq/100g	cmol(+)/kg	cmol(+)/kg	mmol(+)/l	cmol(+)/kg	%	cmol(+)/kg	cmol(+)/kg
A A A BA BA BA Bo1 Bo1 Bo1 Bo2 Bo2 Bo2 Bo3 Bo3 Bo3 BC BC BC	0 0 0 10 10 10 28 28 28 56 56 56 79 79 79 106 106 106	10 10 10 28 28 28 56 56 56 79 79 79 107 107 107 200 200 200	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —		— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —

Pedon Horizon Lab Results - 3
Horizon	Top Depth	Bottom Depth	Sample ID	ECEC	Phosphate P	NO3-N	EC	EC Method	EC 1:5 by volume	CaCO3 Equiv.	Equiv. Gypsum	Na	SAR	Gypsum Req.	Humic Color	Fulvic Color	Humic + Fulvic Color	Al	PI	Pyro. Hue	PyrO. Value	Pyro. Chroma
	cm	cm		cmol(+)/kg	mg/kg	mg/kg	dS/m		dS/m	%	%	mmol(+)/l	%	L-pcu/g	L-pcu/g	L-pcu/g	%
A A A BA BA BA Bo1 Bo1 Bo1 Bo2 Bo2 Bo2 Bo3 Bo3 Bo3 BC BC BC	0 0 0 10 10 10 28 28 28 56 56 56 79 79 79 106 106 106	10 10 10 28 28 28 56 56 56 79 79 79 107 107 107 200 200 200	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — 0 — 0 — 0 — — — 0 — 0 — — — 0 —	0 — — 0 — — — 0 — 0 — — — 0 — 0 — —	— — — — — — — — — — — — — — — — — —	— 0 — — — 0 — — 0 — — 0 — — 0 — — 0	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —	— — — — — — — — — — — — — — — — — —

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
15	—	—	—	—	180	3685	—	365	27	—	—	—	—	—	—	—	—	—	—

A—0 to 10 centimeters (0.0 to 3.9 inches); dark brown (10YR 3/3) interior, brown (10YR 4/3) interior, dry; silty clay loam; 10 percent sand; 56 percent silt; 34 percent clay; moderate fine and medium subangular blocky, and moderate very fine and fine granular structure; friable, slightly sticky, slightly plastic; moderately rapid permeability; low excavation difficulty; 5.5 very fine and fine roots; 2.5 very fine and fine interstitial and tubular pores; fragments; noneffervescent; very strongly acid, pH 4.8, hellige-truog; clear smooth boundary. Lab sample # 80P00028. 5% ferritic concretions, smooth soild, irregualr 1-2 cm in size.; many very fine and fine roots

BA—10 to 28 centimeters (3.9 to 11.0 inches); strong brown (7.5YR 4/6) interior silty clay; 6 percent sand; 47 percent silt; 47 percent clay; moderate fine and medium subangular blocky, and moderate very fine subangular blocky structure; firm, moderately sticky, moderately plastic; moderately slow permeability; moderate excavation difficulty; 2.5 very fine and fine roots; 5.5 very fine interstitial and tubular pores; prominent , moist, pressure faces on faces of peds; fragments; noneffervescent; very strongly acid, pH 4.8, hellige-truog; clear wavy boundary. Lab sample # 80P00029. 5% iron concretions, smooth solid, irregular 1-2 cm in size, 10x15 cm basalt subangular cobble (one in pit face), few fragments of charcoal.; common very fine and fine roots

Bo1—28 to 56 centimeters (11.0 to 22.0 inches); 70 percent yellowish red (5YR 4/6) interior and 30 percent strong brown (7.5YR 4/6) interior silty clay; 6 percent sand; 47 percent silt; 47 percent clay; moderate medium subangular blocky, and moderate very fine subangular blocky structure; firm, moderately sticky, moderately plastic; slow permeability; high excavation difficulty; 0.5 very fine and fine roots; 5.5 very fine and fine interstitial and tubular pores; 15 percent prominent , moist, pressure faces on faces of peds and in pores and 37 percent , moist, pressure faces on faces of peds; fragments; noneffervescent; strongly acid, pH 5.3, hellige-truog; diffuse wavy boundary. Lab sample # 80P00030. 5% iron concretions, smooth solid, irregular 1-2 cm in size, 8x13 cm Fe concretion, irregular somewhat vessicular, solid, 2% 1-2 cm saprolite, few fragments of charcoal.; few pressure faces surface features on faces of peds and in pores; common pressure faces surface features on faces of peds; few very fine and fine roots

Bo2—56 to 79 centimeters (22.0 to 31.1 inches); 80 percent strong brown (7.5YR 4/6) interior and 20 percent yellowish red (5YR 4/6) interior silty clay; 6 percent sand; 47 percent silt; 47 percent clay; moderate medium subangular blocky, and moderate very fine subangular blocky structure; firm, moderately sticky, moderately plastic; slow permeability; high excavation difficulty; 0.5 very fine and fine roots; 5.5 very fine and fine interstitial and tubular pores; 15 percent prominent , moist, pressure faces on faces of peds and in pores and 37 percent , moist, pressure faces on faces of peds; fragments; noneffervescent; strongly acid, pH 5.3, hellige-truog; clear wavy boundary. Lab sample # 80P00031. 5% iron concretions, smooth solid, irregular 1-2 cm in size, 1% gibbsite pendant 0.5 cm in diameter 5 cm long (ferritic gibbsite), few fragments of charcoal.; few pressure faces surface features on faces of peds and in pores; common pressure faces surface features on faces of peds; few very fine and fine roots

Bo3—79 to 107 centimeters (31.1 to 42.1 inches); 80 percent strong brown (7.5YR 4/6) interior and 20 percent yellowish red (5YR 4/6) interior silty clay; 6 percent sand; 47 percent silt; 47 percent clay; moderate medium subangular blocky, and moderate very fine subangular blocky structure; firm, moderately sticky, moderately plastic; slow permeability; very high excavation difficulty; 0.5 very fine and fine roots; 5.5 very fine and fine vesicular and 5.5 very fine and fine tubular pores; 15 percent prominent , moist, pressure faces on faces of peds and in pores and 37 percent , moist, pressure faces on faces of peds; fragments; noneffervescent; moderately acid, pH 5.8, hellige-truog; gradual wavy boundary. Lab sample # 80P00032. 5% iron concretions, smooth solid, irregular 1-2 cm in size.; few pressure faces surface features on faces of peds and in pores; common pressure faces surface features on faces of peds; few very fine and fine roots

BC—106 to 200 centimeters (41.7 to 78.7 inches); variegated 50 percent red (10R 4/8) interior and 25 percent brownish yellow (10YR 6/8) interior and 15 percent strong brown (7.5YR 4/6) interior silt loam; 20 percent sand; 65 percent silt; 15 percent clay; medium and coarse subangular blocky structure; friable, slightly sticky, slightly plastic; moderately slow permeability; very high excavation difficulty; 0.5 very fine roots; 2.5 very fine and fine vesicular and 2.5 very fine and fine interstitial and tubular pores; 55 percent distinct , moist, pressure faces on faces of peds; fragments; noneffervescent; moderately acid, pH 5.8, hellige-truog. Lab sample # 80P00033. Specks (2.5Y 7/0) and coatings (7.5YR 4/6), roots along fracture faces and in interior of ped, fracture faces 2 to 10 cm apart and less than 1 mm wide, C horizon is saprolite, tubular pores along interstices.; many pressure faces surface features on faces of peds; few very fine roots