IDENTIFIERS

Current Taxon Name (Soil Name): Apilam

OSD

Series Extent

User Site ID: 99PB646-002

User Pedon ID: S99MP090-080

Lab Information:

Certified Lab Pedon Description - no

Lab Pedon # - 00P0166

NCSS Pedon Lab Data NASIS Record ID - 11674

Print Date: 11/24/2024

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: 16.3352778

Std. Longitude: 145.6658333

Datum: WGS84

Non-MLRA Soil Survey Area: PB646—Islands of Agrigan, Alamagan, Anatahan, Pagan, and Sarigan, Commonwealth of the Northern Marianas Islands

PEDON

Describers Name: Gary Parks, Ken Monroe

Current Taxonomic Class: Ashy, glassy, nonacid, isohyperthermic Vitrandic Haplustepts

Current Taxon Kind: series

Pedon Type: OSD pedon

Pedon Purpose: full pedon description

Pedon Record Orgin: NASIS

Correlated Information:

Soil Name - Apilam

PSC - 0 to 100 cm.

Classificaton Date - 1/21/2012

Moisture Class - ustic

Moisture Subclass - ustic

Sampled As Information:

Soil Name - Apilam

Classificaton Date - 5/11/1999

Dynamic Soil Properties:

Pedoderm Loose Cover Indicator - no

Hydric: no

SITE

Parent Material: basaltic volcanic ash derived from basalt and/or andesitic volcanic ash derived from andesite

Hill Slope Profile: shoulder

Slope Position: upper third

Slope Complexity: simple

Slope Shape Across: convex

Slope Shape Down: linear

Runoff: very low

Drainage Class: moderately well

Flooding: none flooding

Ponding: none ponding

Surface Fragments:

Benchmark Soil?: no

VEGETATION

SITE OBSERVATION

Observation Date: 5/11/1999 (actual site observation date)

Air Photo ID: Anatahan

Surface Water Kind: none observed

Surface Cover Properties:

Site Obs. Cover Kind 1 - grass/herbaceous cover

Pedoderm Loose Cover Indicator - no

Drained? - no

Bedded Soil? - no

Forest Plantation? - no

Current Weather - sunny

Current Air Temp - 29

Pedon Restrictions
Kind	Hardness	Restriction Depth L-H	Restriction Thickness L-RV-H
		cm
densic material densic material densic material densic material	weakly coherent moderately coherent moderately coherent moderately coherent	15 - 28 15 - 28 112 - 117 117 - 127	9 - 13 - 15 9 - 13 - 15 3 - 5 - 9 7 - 10 - 13

Pedon Diagnostic Features
Feature Kind	Feature Depth L-H	Feature Thickness L-RV-H
	cm
andic soil properties ochric epipedon densic materials cambic horizon andic soil properties densic materials	0—15 0—15 15—28 28—112 71—86 112—127	—15— —15— —13— —84— —15— —15—

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	—	—	135	—	360	2032	—	365	24.8	—	—	—	—	—	—	—	—	—	—

A—0 to 15 centimeters (0.0 to 5.9 inches);, very dark grayish brown (2.5Y 3/2) interior, moist; silt loam; weak fine granular structure; soft, friable, slightly sticky, slightly plastic; weakly smeary; moderate permeability; low excavation difficulty; 1.0 very fine roots throughout and 1.0 medium roots throughout and 4.0 fine roots throughout; 4.0 fine moderate-continuity interstitial and 4.0 fine moderate-continuity tubular pores; 3 percent by volume angular weakly coherent cemented 2-15-20 millimeter unspecified fragments; noneffervescent; slightly acid, pH 6.2, bromthymol blue; clear wavy boundary.; moist when described; observed in pit, small

Bd—15 to 28 centimeters (5.9 to 11.0 inches);, very dark grayish brown (2.5Y 3/2) interior and dark grayish brown (2.5Y 4/2) interior and dark grayish brown (2.5Y 4/2) interior, moist; loam; weak fine subangular blocky structure; hard, firm, slightly sticky, slightly plastic; moderately smeary; moderate permeability; moderate excavation difficulty; 1.0 very fine roots throughout and 1.0 fine roots throughout; 4.0 medium moderate-continuity tubular and 4.0 fine moderate-continuity tubular pores; 3 percent medium prominent irregular light olive brown (2.5Y 5/3), moist, iron-manganese masses with diffuse boundaries throughout and 5 percent medium prominent irregular grayish brown (2.5Y 5/2), moist, iron-manganese masses with diffuse boundaries throughout; 3 percent by volume angular weakly coherent cemented 2-15-20 millimeter unspecified fragments; noneffervescent; neutral, pH 6.8, bromthymol blue; abrupt smooth boundary.; moist when described; observed in pit, small

B—15 to 28 centimeters (5.9 to 11.0 inches);, very dark grayish brown (2.5Y 3/2) interior, moist; loam; weak fine granular structure; hard, firm, slightly sticky, slightly plastic; moderately smeary; moderate permeability; low excavation difficulty; 1.0 very fine roots throughout and 4.0 fine roots throughout; 4.0 medium moderate-continuity tubular and 4.0 fine moderate-continuity tubular pores; 3 percent medium prominent irregular light olive brown (2.5Y 5/3), moist, iron-manganese masses with diffuse boundaries throughout and 5 percent medium prominent irregular grayish brown (2.5Y 5/2), moist, iron-manganese masses with diffuse boundaries throughout; 3 percent by volume angular weakly coherent cemented 2-15-20 millimeter unspecified fragments; noneffervescent; neutral, pH 6.8, bromthymol blue; abrupt smooth boundary.; moist when described; observed in pit, small

2Bw1—28 to 38 centimeters (11.0 to 15.0 inches);, dark gray (2.5Y 4/1) interior, moist; loam; weak fine subangular blocky, and weak medium subangular blocky parts to weak fine granular structure; soft, friable, nonsticky, nonplastic; moderately smeary; moderate permeability; low excavation difficulty; 1.0 very fine roots throughout; 1.0 fine low-continuity tubular pores; 8 percent fine distinct irregular noncoherent cemented olive brown (2.5Y 4/4), moist, iron-manganese masses with diffuse boundaries throughout and 8 percent medium distinct irregular noncoherent cemented olive brown (2.5Y 4/4), moist, iron-manganese masses with diffuse boundaries throughout; fragments; noneffervescent; neutral, pH 7.0, bromthymol blue; abrupt smooth boundary.; moist when described; observed in pit, small

2Bw2—38 to 41 centimeters (15.0 to 16.1 inches);, dark gray (2.5Y 4/1) interior, moist; loam; structureless medium angular blocky structure; very hard, very firm, nonsticky, nonplastic; weakly smeary; slow permeability; low excavation difficulty; 30 percent medium distinct platy noncoherent cemented olive brown (2.5Y 4/4), moist, iron-manganese masses with diffuse boundaries on horizontal faces of peds; fragments; noneffervescent; neutral, pH 7.0, bromthymol blue; abrupt smooth boundary.; moist when described; observed in pit, small

2Bw3—41 to 69 centimeters (16.1 to 27.2 inches);, dark gray (2.5Y 4/1) interior, moist; loam; weak medium angular blocky structure; hard, firm, nonsticky, nonplastic; weakly smeary; moderate permeability; low excavation difficulty; 3.0 very fine roots between peds and 3.0 fine roots between peds; 4 percent coarse distinct irregular noncoherent cemented olive brown (2.5Y 4/3), moist, iron-manganese masses with diffuse boundaries throughout and 4 percent medium distinct irregular noncoherent cemented olive brown (2.5Y 4/3), moist, iron-manganese masses with diffuse boundaries throughout and 15 percent medium prominent irregular noncoherent cemented light brownish gray (2.5Y 6/2), moist, masses of reduced iron with diffuse boundaries throughout and 15 percent fine prominent irregular noncoherent cemented light brownish gray (2.5Y 6/2), moist, masses of reduced iron with diffuse boundaries throughout; fragments; noneffervescent; neutral, pH 7.0, bromthymol blue; abrupt smooth boundary.; moist when described; observed in pit, small

2Bw4—69 to 86 centimeters (27.2 to 33.9 inches);, dark grayish brown (2.5Y 4/2) interior, moist; loam; weak medium angular blocky structure; hard, firm, nonsticky, nonplastic; weakly smeary; moderate permeability; low excavation difficulty; 3.0 very fine roots between peds and 3.0 fine roots between peds; 30 percent coarse distinct irregular noncoherent cemented olive brown (2.5Y 4/4), moist, iron-manganese masses with diffuse boundaries on horizontal faces of peds and 30 percent medium distinct irregular noncoherent cemented olive brown (2.5Y 4/4), moist, iron-manganese masses with diffuse boundaries on horizontal faces of peds; fragments; noneffervescent; neutral, pH 7.0, bromthymol blue; abrupt smooth boundary.; moist when described; observed in pit, small

3Bw5—86 to 112 centimeters (33.9 to 44.1 inches);, 50 percent dark grayish brown (2.5Y 4/2) interior and 30 percent dark gray (2.5Y 4/1) interior and 20 percent olive brown (2.5Y 4/4) interior, moist; loam; weak fine subangular blocky, and weak medium subangular blocky parts to weak fine granular structure; soft, friable, nonsticky, nonplastic; moderately smeary; moderate permeability; low excavation difficulty; 1.0 fine low-continuity tubular pores; fragments; noneffervescent; neutral, pH 7.0, bromthymol blue; abrupt smooth boundary.; moist when described; observed in pit, small

4Bd1—112 to 117 centimeters (44.1 to 46.1 inches);, dark gray (2.5Y 4/1) interior, moist; loam; structureless medium subangular blocky structure; hard, firm, nonsticky, nonplastic; weakly smeary; slow permeability; moderate excavation difficulty; 60 percent fine distinct platy noncoherent cemented olive brown (2.5Y 4/4), moist, iron-manganese masses with diffuse boundaries on horizontal faces of peds; fragments; noneffervescent; neutral, pH 7.2, bromthymol blue; abrupt smooth boundary.; moist when described; observed in pit, small

4Bd2—117 to 127 centimeters (46.1 to 50.0 inches);, very dark gray (2.5Y 3/1) interior, moist; loam; structureless medium angular blocky structure; hard, firm, nonsticky, nonplastic; weakly smeary; slow permeability; moderate excavation difficulty; 25 percent medium prominent platy weak red (2.5YR 4/2), moist, iron-manganese masses with diffuse boundaries on horizontal faces of peds; fragments; noneffervescent; neutral, pH 7.0, bromthymol blue; gradual wavy boundary.; moist when described; observed in pit, small

5C—127 to 152 centimeters (50.0 to 59.8 inches);, very dark gray (2.5Y 3/1) interior, moist; sandy loam; structureless single grain; soft, friable, nonsticky, nonplastic; nonsmeary; moderate permeability; low excavation difficulty; fragments; noneffervescent; neutral, pH 7.0, bromthymol blue; abrupt smooth boundary.; moist when described; observed in pit, small

6C—152 to 165 centimeters (59.8 to 65.0 inches);, very dark gray (2.5Y 3/1) interior, moist; very fine sandy loam; structureless single grain; loose, loose, nonsticky, nonplastic; nonsmeary; very rapid permeability; low excavation difficulty; fragments; noneffervescent; neutral, pH 7.2, bromthymol blue; clear smooth boundary.; moist when described; observed in pit, small

7C—165 to 170 centimeters (65.0 to 66.9 inches);, very dark gray (2.5Y 3/1) interior, moist; very gravelly coarse sand; structureless single grain; loose, loose, nonsticky, nonplastic; nonsmeary; very rapid permeability; low excavation difficulty; 40 percent by volume nonflat subangular indurated 2-50-75 millimeter cinders fragments; noneffervescent; neutral, pH 7.2, bromthymol blue; abrupt smooth boundary.; moist when described; observed in pit, small

8Ab—170 to 203 centimeters (66.9 to 79.9 inches);, very dark gray (2.5Y 3/1) interior, moist; silt loam; weak fine subangular blocky, and weak medium subangular blocky structure; soft, friable, nonsticky, nonplastic; weakly smeary; moderately rapid permeability; low excavation difficulty; 15.0 very fine roots throughout and 15.0 fine roots throughout; 3.0 fine moderate-continuity tubular pores; 8 percent medium prominent irregular olive brown (2.5Y 4/4), moist, iron-manganese masses with diffuse boundaries throughout and 8 percent fine prominent irregular olive brown (2.5Y 4/4), moist, iron-manganese masses with diffuse boundaries throughout; 5 percent by volume subangular 15-30-75 millimeter unspecified fragments; noneffervescent; neutral, pH 6.6, bromthymol blue.; moist when described; observed in pit, small