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SoilKnowledgeBot
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{ | ||
"SERIES": "MODOCPOINT", | ||
"STATUS": "Tentative Series", | ||
"BYREV": "Rev. KBC/BTH", | ||
"REVDATE": "11/2023", | ||
"STATES": "OR", | ||
"OVERVIEW": "Landscape--Intermontane basins\nLandform--alluvial fans, stream terraces\nSlope--0 to 5 percent\nParent material--alluvium derived from volcanic rock and volcanic ash\nMean annual precipitation--about 510 mm\nMean annual air temperature--about 5.6 degrees C\nDepth class--very deep\nDrainage class--well drained\nSoil moisture regime--xeric\nSoil temperature regime--frigid\nSoil moisture subclass--typic", | ||
"TAXONOMIC CLASS": { | ||
"section": "TAXONOMIC CLASS", | ||
"content": "TAXONOMIC CLASS: Loamy-skeletal, isotic, frigid Vitrandic Haploxerolls" | ||
}, | ||
"TYPICAL PEDON": { | ||
"section": "TYPICAL PEDON", | ||
"content": "TYPICAL PEDON: Modocpoint ashy coarse sandy loam on a cultivated alluvial fan with a slope of 2 percent and an elevation of 1272 m\nA--0 to 15 cm; ashy coarse sandy loam, dark grayish brown (10YR 4/2) dry, very dark brown (10YR 2/2) moist; moderate fine and medium granular structure; slightly hard, very friable, nonsticky and nonplastic; common very fine, fine, and medium roots throughout; common fine and medium dendritic tubular and coarse tubular pores; 12 percent mixed volcanic gravel; slightly acid (pH 6.5); gradual smooth boundary\nAB--15 to 32 cm; gravelly ashy sandy loam, dark grayish brown (10YR 4/2) dry, dark brown (10YR 3/3) moist; moderate medium subangular blocky structure; slightly hard, friable, nonsticky and nonplastic; common very fine and fine, and few medium roots throughout; common fine and medium dendritic tubular and coarse tubular pores; 25 percent mixed volcanic gravel; neutral (pH 6.6); gradual smooth boundary\nBw1--32 to 58 cm; gravelly ashy sandy loam, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4), moist; moderate medium subangular blocky structure; moderately hard, friable, nonsticky and nonplastic; common very fine and fine and few medium roots; common very fine and fine dendritic tubular pores; 20 percent dark yellowish brown (10YR 3/4), moist, clay bridges between sand grains; 15 percent fine and 15 percent medium mixed volcanic gravel; neutral (pH 7.0); gradual smooth boundary\nBw2--58 to 94 cm; very gravelly ashy sandy loam, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4), moist; moderate coarse subangular blocky structure; moderately hard, friable, nonsticky and nonplastic; common very fine and fine roots; common very fine and fine dendritic tubular pores; 20 percent dark yellowish brown (10YR 3/4), moist, clay bridges between sand grains; 30 percent fine, 10 percent medium, and 5 percent coarse mixed volcanic gravel; neutral (pH 7.2); gradual smooth boundary\nBC--94 to 150 cm; extremely gravelly ashy loamy sand, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4) moist; weak coarse subangular blocky structure; soft, friable, nonsticky and nonplastic; common very fine and fine roots; common very fine and fine dendritic tubular pores; 35 percent fine, 20 percent medium, and 10 percent coarse mixed volcanic gravel, and 1 percent mixed volcanic cobbles; neutral (pH 7.2); gradual smooth boundary\nC--150 to 205 cm; gravelly ashy loamy fine sand, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4) moist; massive structure; loose, friable, nonsticky and nonplastic; 2 percent dark yellowish brown (10YR 4/4), moist, iron-manganese masses with diffuse boundaries in matrix; 15 percent fine and 10 percent medium mixed volcanic gravel; neutral (pH 7.0)" | ||
}, | ||
"TYPE LOCATION": { | ||
"section": "TYPE LOCATION", | ||
"content": "TYPE LOCATION: Klamath County, Oregon; about 0.8 mile west of the junction of Highway 97 and Day School Road and 0.3 mile north of Day School Road; about 430 m north and 174 m east of the SW corner section 28, T. 35 S., R. 7 E.; Willamette Meridian; Agency Lake, Oregon USGS quadrangle; latitude 42.5045910 degrees north, longitude 121.8948940 degrees west, datum WGS 84 (coordinates derived from GPS unit)." | ||
}, | ||
"RANGE IN CHARACTERISTICS": { | ||
"section": "RANGE IN CHARACTERISTICS", | ||
"content": "RANGE IN CHARACTERISTICS:\n*Average annual soil temperature--5.5 to 8.0 degrees C\n*Soil moisture control section--20 to 80 cm; dry for 60 to 90 consecutive days within the four month period following the summer solstice; seasonally high water table (endosaturation) below the control section between March and June has an upper limit of 120 cm below the surface in normal years\n*Mollic epipedon--18 to 49 cm thick\n*Base saturation throughout the Mollic epipedon--75 to 100 percent by NH4OH\n*Reaction--moderately acid to neutral\nEstimated properties:\n*Volcanic glass content--5 to 20 percent\n*Acid oxalate Al+1/2Fe--0.2 to 0.4 percent\n*Moist bulk density--1.0 to 1.2 g/cc\n*15 bar water retention--10 to 15 percent on air dried samples\nParticle-size control section:\n*Clay content--5 to 17 percent\n*Total rock fragment content--35 to 75 percent\nA horizon(s)\n*Value--4 or 5 dry, 2 or 3 moist\n*Chroma--2 or 3 dry or moist\n*Clay content--5 to 15 percent\n*Gravel content--0 to 14 percent\n*Paragravel content--0 to 5 percent\n*Total rock and pararock fragment content--0 to 14 percent\n*Thickness--10 to 49 cm\nAB horizon(s) (where present)\n*Value--4 or 5 dry, 2 or 3 moist\n*Chroma--2 or 3 dry or moist\n*Fine-earth texture--ashy loamy sand, ashy sandy loam, ashy loam\n*Clay content--5 to 15 percent\n*Gravel content--10 to 30 percent\n*Paragravel content--0 to 5 percent\n*Total rock and pararock fragment content--10 to 30 percent\n*Thickness--0 to 20 cm\nBw horizon(s)\n*Value--4 to 6 dry, 3 or 4 moist\n*Chroma--2 to 4 dry or moist\n*Fine-earth texture--ashy loamy sand, ashy coarse sandy loam, ashy sandy loam, ashy loam\n*Clay content--5 to 17 percent\n*Gravel content--10 to 55 percent\n*Cobble content--0 to 5 percent\n*Paragravel content--0 to 5 percent\n*Total rock and pararock fragment content--10 to 55 percent\n*Thickness--40 to 100 cm\nBC horizon (where present)\n*Value--4 to 6 dry, 3 or 4 moist\n*Chroma--2 to 4 dry or moist\n*Fine-earth texture--ashy loamy sand, ashy loamy fine sand, ashy coarse sandy loam, ashy sandy loam\n*Clay content--5 to 13 percent\n*Gravel content--25 to 75 percent\n*Cobble content--0 to 5 percent\n*Paragravel content--0 to 5 percent\n*Total rock and pararock fragment content--25 to 75 percent\n*Thickness--0 to 55 cm\nC horizon\n*Value--4 to 6 dry, 3 or 4 moist\n*Chroma--2 to 4 dry or moist\n*Fine-earth texture--ashy loamy sand, ashy loamy fine sand, ashy coarse sandy loam, ashy sandy loam\n*Clay content--5 to 13 percent\n*Gravel content--20 to 70 percent\n*Cobble content--0 to 5 percent\n*Paragravel content--0 to 5 percent\n*Total rock and pararock fragment content--20 to 75 percent" | ||
}, | ||
"COMPETING SERIES": { | ||
"section": "COMPETING SERIES", | ||
"content": "COMPETING SERIES:\nBearspring--parent material is granitic; 90 to 120 frost-free days\nBigelk--lithologic discontinuity; soil moisture control section is dry for 45 to 60 days\nCassal--deep to densic contact; moderately well drained\nCherrycreek--deep to bedrock; thickness of the mollic epipedon is greater than 50 cm\nDeck--moderately deep to lithic contact\nEastpine--moderately deep to bedrock\nEgyptcreek--moderately deep to bedrock\nFredonyer--moderately deep to bedrock\nGolfer--moderately deep to paralithic contact\nGrubcreek--moderately deep to bedrock\nKettlecreek--deep to bedrock; lithologic discontinuity\nLongs--deep to bedrock; thickness of the mollic epipedon is greater than 50 cm\nMcCrosket--deep to bedrock\nMidpeak--moderately deep to bedrock; lithologic discontinuity\nMineral--moderately deep to bedrock\nPeahke--moderately deep to bedrock\nPiersonte--parent material is shale or schist; upper part of the Bw horizons has 18 to 30 percent clay and 50 to 70 percent shale fragments; lower part of the Bw horizons has 50 to 80% shale fragments\nPorch--moderately deep to bedrock\nScoap--thickness of the mollic epipedon is at least 50 cm; 90 to 120 frost-free days\nShalrock--moderately deep to bedrock; lithologic discontinuity\nShilling--18 to 27 percent clay in the particle-size control section\nUmatilla--25 to 35 percent clay in the particle-size control section; lithologic discontinuity\nWebbgulch--moderately deep to bedrock\nYellcreek--influence of ash only in the upper part; lithologic discontinuity; thickness of the mollic epipedon is at least 50 cm" | ||
}, | ||
"GEOGRAPHIC SETTING": { | ||
"section": "GEOGRAPHIC SETTING", | ||
"content": "GEOGRAPHIC SETTING:\nElevation--1260 to 1300 m\nClimate--cold, wet winters and warm, dry summers\nMean annual precipitation--455 to 560 mm\nMean annual air temperature--4.5 to 6.9 degrees C\nFrost-free period--40 to 70 days" | ||
}, | ||
"GEOGRAPHICALLY ASSOCIATED SOILS": { | ||
"section": "GEOGRAPHICALLY ASSOCIATED SOILS", | ||
"content": "GEOGRAPHICALLY ASSOCIATED SOILS:\nBly--100 to 200 cm to a duripan (deep or very deep); argillic horizon; alluvial fans and terraces\nChiloquin--90 to 110 cm to apparent high water table (moderately well drained); flood plains and terraces\nDragonfly--50 to 100 cm to apparent high water table (somewhat poorly drained); particle-size control section is ashy and non-skeletal; floodplains\nHenley--50 to 100 cm to duripan (moderately deep); 50 to 110 frost-free days; stream terraces\nLobert--particle-size control section averages less than 15 percent coarse fragments; stream terraces\nOntko--saturated for 30 to 60 days in the spring; 10 to 50 cm to layers meeting aquandic subgroup criteria (very poorly or poorly drained); flood plains" | ||
}, | ||
"DRAINAGE AND PERMEABILITY": { | ||
"section": "DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY", | ||
"content": "DRAINAGE AND SATURATED HYDRAULIC CONDUCTIVITY:\nDrainage class--well drained\nSaturated hydraulic conductivity--moderately high to very high" | ||
}, | ||
"USE AND VEGETATION": { | ||
"section": "USE AND VEGETATION", | ||
"content": "USE AND VEGETATION:\nUse--timber production, livestock grazing, irrigated and dryland small grains, hay, pasture, homesites\nVegetation--ponderosa pine, big sagebrush, antelope bitterbrush, Ross's sedge, Idaho fescue," | ||
}, | ||
"DISTRIBUTION AND EXTENT": { | ||
"section": "DISTRIBUTION AND EXTENT", | ||
"content": "DISTRIBUTION AND EXTENT: Klamath and Shasta Valleys and Basins, Oregon; MLRA 21; small extent" | ||
}, | ||
"REGIONAL OFFICE": { | ||
"section": "SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE", | ||
"content": "SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Davis, California" | ||
}, | ||
"ORIGIN": { | ||
"section": "SERIES PROPOSED", | ||
"content": "SERIES PROPOSED: Klamath County, Oregon, 2019\nOrigin of the name--Modoc Point is a named geographic feature (high point on a nearby scarp, and a landform feature that juts out into Upper Klamath Lake), a USGS quadrangle map name, and the name of a road near the type location of this soil series." | ||
}, | ||
"REMARKS": { | ||
"section": "REMARKS", | ||
"content": "REMARKS:\nDiagnostic horizons and other features recognized in this pedon\n*Mollic epipedon--A, AB horizons\n*Cambic horizon--Bw1, Bw2 horizons\n*Volcanic glass--all horizons\n*Vitrandic subgroup criteria--all horizons\n*Redoximorphic concentrations--C horizon\n*Particle-size control section--the zone from 25 to 100 cm" | ||
}, | ||
"ADDITIONAL DATA": { | ||
"section": "ADDITIONAL DATA", | ||
"content": "ADDITIONAL DATA:\n*NASIS Site ID: 2019OR035054\n*NASIS Pedon ID: 2019OR035054" | ||
}, | ||
"SITE": [ | ||
[ | ||
{ | ||
"drainage": "well", | ||
"drainage_overview": "well" | ||
} | ||
] | ||
], | ||
"HORIZONS": [ | ||
[ | ||
{ | ||
"name": "A", | ||
"top": 0, | ||
"bottom": 15, | ||
"dry_hue": "10YR", | ||
"dry_value": 4, | ||
"dry_chroma": 2, | ||
"moist_hue": "10YR", | ||
"moist_value": 2, | ||
"moist_chroma": 2, | ||
"texture_class": "coarse sandy loam", | ||
"structure": "moderate fine and medium granular", | ||
"dry_rupture": "hard", | ||
"moist_rupture": "friable", | ||
"coherence": "NA", | ||
"cf_class": "NA", | ||
"pH": 6.5, | ||
"pH_class": "slightly acid", | ||
"eff_class": "NA", | ||
"distinctness": "gradual", | ||
"topography": "smooth", | ||
"narrative": "A--0 to 15 cm; ashy coarse sandy loam, dark grayish brown (10YR 4/2) dry, very dark brown (10YR 2/2) moist; moderate fine and medium granular structure; slightly hard, very friable, nonsticky and nonplastic; common very fine, fine, and medium roots throughout; common fine and medium dendritic tubular and coarse tubular pores; 12 percent mixed volcanic gravel; slightly acid (pH 6.5); gradual smooth boundary" | ||
}, | ||
{ | ||
"name": "AB", | ||
"top": 15, | ||
"bottom": 32, | ||
"dry_hue": "10YR", | ||
"dry_value": 4, | ||
"dry_chroma": 2, | ||
"moist_hue": "10YR", | ||
"moist_value": 3, | ||
"moist_chroma": 3, | ||
"texture_class": "sandy loam", | ||
"structure": "moderate medium subangular blocky", | ||
"dry_rupture": "hard", | ||
"moist_rupture": "friable", | ||
"coherence": "NA", | ||
"cf_class": "gravelly", | ||
"pH": 6.6, | ||
"pH_class": "neutral", | ||
"eff_class": "NA", | ||
"distinctness": "gradual", | ||
"topography": "smooth", | ||
"narrative": "AB--15 to 32 cm; gravelly ashy sandy loam, dark grayish brown (10YR 4/2) dry, dark brown (10YR 3/3) moist; moderate medium subangular blocky structure; slightly hard, friable, nonsticky and nonplastic; common very fine and fine, and few medium roots throughout; common fine and medium dendritic tubular and coarse tubular pores; 25 percent mixed volcanic gravel; neutral (pH 6.6); gradual smooth boundary" | ||
}, | ||
{ | ||
"name": "Bw1", | ||
"top": 32, | ||
"bottom": 58, | ||
"dry_hue": "10YR", | ||
"dry_value": 5, | ||
"dry_chroma": 4, | ||
"moist_hue": "10YR", | ||
"moist_value": 3, | ||
"moist_chroma": 4, | ||
"texture_class": "sandy loam", | ||
"structure": "moderate medium subangular blocky", | ||
"dry_rupture": "hard", | ||
"moist_rupture": "friable", | ||
"coherence": "NA", | ||
"cf_class": "gravelly", | ||
"pH": 7, | ||
"pH_class": "neutral", | ||
"eff_class": "NA", | ||
"distinctness": "gradual", | ||
"topography": "smooth", | ||
"narrative": "Bw1--32 to 58 cm; gravelly ashy sandy loam, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4), moist; moderate medium subangular blocky structure; moderately hard, friable, nonsticky and nonplastic; common very fine and fine and few medium roots; common very fine and fine dendritic tubular pores; 20 percent dark yellowish brown (10YR 3/4), moist, clay bridges between sand grains; 15 percent fine and 15 percent medium mixed volcanic gravel; neutral (pH 7.0); gradual smooth boundary" | ||
}, | ||
{ | ||
"name": "Bw2", | ||
"top": 58, | ||
"bottom": 94, | ||
"dry_hue": "10YR", | ||
"dry_value": 5, | ||
"dry_chroma": 4, | ||
"moist_hue": "10YR", | ||
"moist_value": 3, | ||
"moist_chroma": 4, | ||
"texture_class": "sandy loam", | ||
"structure": "moderate coarse subangular blocky", | ||
"dry_rupture": "hard", | ||
"moist_rupture": "friable", | ||
"coherence": "NA", | ||
"cf_class": "very gravelly", | ||
"pH": 7.2, | ||
"pH_class": "neutral", | ||
"eff_class": "NA", | ||
"distinctness": "gradual", | ||
"topography": "smooth", | ||
"narrative": "Bw2--58 to 94 cm; very gravelly ashy sandy loam, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4), moist; moderate coarse subangular blocky structure; moderately hard, friable, nonsticky and nonplastic; common very fine and fine roots; common very fine and fine dendritic tubular pores; 20 percent dark yellowish brown (10YR 3/4), moist, clay bridges between sand grains; 30 percent fine, 10 percent medium, and 5 percent coarse mixed volcanic gravel; neutral (pH 7.2); gradual smooth boundary" | ||
}, | ||
{ | ||
"name": "BC", | ||
"top": 94, | ||
"bottom": 150, | ||
"dry_hue": "10YR", | ||
"dry_value": 5, | ||
"dry_chroma": 4, | ||
"moist_hue": "10YR", | ||
"moist_value": 3, | ||
"moist_chroma": 4, | ||
"texture_class": "loamy sand", | ||
"structure": "weak coarse subangular blocky", | ||
"dry_rupture": "soft", | ||
"moist_rupture": "friable", | ||
"coherence": "NA", | ||
"cf_class": "extremely gravelly", | ||
"pH": 7.2, | ||
"pH_class": "neutral", | ||
"eff_class": "NA", | ||
"distinctness": "gradual", | ||
"topography": "smooth", | ||
"narrative": "BC--94 to 150 cm; extremely gravelly ashy loamy sand, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4) moist; weak coarse subangular blocky structure; soft, friable, nonsticky and nonplastic; common very fine and fine roots; common very fine and fine dendritic tubular pores; 35 percent fine, 20 percent medium, and 10 percent coarse mixed volcanic gravel, and 1 percent mixed volcanic cobbles; neutral (pH 7.2); gradual smooth boundary" | ||
}, | ||
{ | ||
"name": "C", | ||
"top": 150, | ||
"bottom": 205, | ||
"dry_hue": "10YR", | ||
"dry_value": 5, | ||
"dry_chroma": 4, | ||
"moist_hue": "10YR", | ||
"moist_value": 3, | ||
"moist_chroma": 4, | ||
"texture_class": "loamy fine sand", | ||
"structure": "massive", | ||
"dry_rupture": "loose", | ||
"moist_rupture": "friable", | ||
"coherence": "NA", | ||
"cf_class": "gravelly", | ||
"pH": 7, | ||
"pH_class": "neutral", | ||
"eff_class": "NA", | ||
"distinctness": "NA", | ||
"topography": "NA", | ||
"narrative": "C--150 to 205 cm; gravelly ashy loamy fine sand, yellowish brown (10YR 5/4) dry, dark yellowish brown (10YR 3/4) moist; massive structure; loose, friable, nonsticky and nonplastic; 2 percent dark yellowish brown (10YR 4/4), moist, iron-manganese masses with diffuse boundaries in matrix; 15 percent fine and 10 percent medium mixed volcanic gravel; neutral (pH 7.0)" | ||
} | ||
] | ||
] | ||
} |
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