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{ | ||
"SERIES": "GRASSYPOINT", | ||
"STATUS": "Tentative Series", | ||
"BYREV": "SAK-JKW-AS", | ||
"REVDATE": "07/2024", | ||
"STATES": "TX", | ||
"OVERVIEW": "The Grassypoint series consists of very deep, very poorly drained, very low saturated hydraulic conductivity soils that formed in clayey fluviomarine deposits. These nearly level soils occur on tidal marshes on estuaries. Slope is less than 1 percent. Mean annual precipitation is about 1295 mm (51 in) and mean annual air temperature is about 20.6 degrees C (69 degrees F).", | ||
"TAXONOMIC CLASS": { | ||
"section": "TAXONOMIC CLASS", | ||
"content": "TAXONOMIC CLASS: Fine, smectitic, nonacid, hyperthermic Sodic Endoaquents" | ||
}, | ||
"TYPICAL PEDON": { | ||
"section": "TYPICAL PEDON", | ||
"content": "TYPICAL PEDON: Grassypoint silty clay loam, on tidal marsh. (Colors are for moist soil unless otherwise stated.)\nAg--0 to 30 cm (0 to 12 in); dark greenish gray (10Y 4/1) silty clay loam; massive; moderately sticky, moderately plastic; many fine roots; many dead roots; electrical conductivity of 42.0 dS/m; neutral; clear smooth boundary. (12 to 32 cm [5 to 13 in] thick)\nCg1--30 to 67 cm (12 to 26 in); dark gray (N 4/), clay; massive; very sticky, very plastic; common fine roots; 5 percent fine prominent light olive brown (2.5Y 5/4) masses of oxidized iron; electrical conductivity of 22.0 dS/m by ec meter; neutral; gradual smooth boundary. (combined thickness of the Cg horizons is 48 to 168 cm [19 to 66 in])\nCg2--67 to 112 cm (26 to 44 in); gray (N 5/), clay; massive; very sticky, very plastic; very few very fine roots; 1 percent fine prominent black (7.5YR 2.5/1) manganese masses; 5 percent medium prominent olive yellow (5Y 6/6) masses of oxidized iron; electrical conductivity of 26.0 dS/m by ec meter; neutral; clear smooth boundary.\nC--112 to 203 cm (44 to 80 in); reddish brown (5YR 5/4) clay; massive; very sticky, very plastic; 2 percent fine prominent black (7.5YR 2.5/1) manganese masses; 5 percent coarse prominent gray (5Y 6/1) iron depletions; 15 percent medium prominent gray (5Y 6/1) iron depletions; electrical conductivity of 32.0 dS/m by ec meter; neutral. (42 to 141 cm [17 to 56 in] thick)" | ||
}, | ||
"TYPE LOCATION": { | ||
"section": "TYPE LOCATION", | ||
"content": "TYPE LOCATION:\nBrazoria County, TX; from the intersection of FM521 and FM2004; about 1.8 miles northeast on FM2004 to the entrance to Brazoria National Wildlife Refuge; 3 miles east on paved refuge road, then 1.5 miles south to kayak launch; located about 0.65 mile southwest in tidal marsh.\nUSGS topographic quadrangle: Oyster Creek, TX\nLatitude: 29 degrees 1 minute 30.54 seconds north\nLongitude: 95 degrees 15 minutes 30.38 seconds west\nDatum: WGS84\nUTM Zone: 15\nUTM Easting: 280051 meters\nUTM Northing: 3212876 meters" | ||
}, | ||
"RANGE IN CHARACTERISTICS": { | ||
"section": "RANGE IN CHARACTERISTICS", | ||
"content": "RANGE IN CHARACTERISTICS:\nSoil Moisture: A peraquic soil moisture regime.\nMean annual soil temperature: 21.7 to 22.2 degrees C (71 to 72 degrees F)\nParticle-size control section (weighted average):\nTotal clay content: 35 to 45 percent\nAg horizon:\n(some pedons have an O horizon made up of decayed and living grass roots)\nHue: 2.5Y, 5Y, 10Y, or N\nValue: 2 to 4\nChroma: up to 1\nTexture: loam, clay loam, silty clay loam, silty clay, or clay\nTotal clay content: 25 to 53 percent\nElectrical conductivity (mmhos/cm): 21 to 63\nReaction (pH): neutral slightly alkaline (6.6 to 7.8)\nCg horizon:\nHue: 2.5Y, 5Y, 10Y, or N\nValue: 2 to 6\nChroma: up to 1\nTexture: clay loam, silty clay loam, silty clay, or clay\nTotal clay content: 34 to 53 percent\nRedox concentrations: amount-0 to 8 percent; color-shades of brown or yellow\nRedox depletions: amount-0 to 8 percent; color-shades of gray\nIron-manganese concentrations: amount-0 to 5 percent\nElectrical conductivity (mmhos/cm): 13 to 54\nReaction (pH): neutral to moderately alklaline (6.1 to 8.4)\nC horizon:\nHue: 7.5YR or 5YR\nValue: 4 or 5\nChroma: 3 or 4\nTexture: silty clay loam, silty clay, clay\nTotal clay content: 30 to 85 percent\nRedox concentrations: amount-0 to 8 percent; color-shades of brown or yellow\nRedox depletions: amount-0 to 8 percent; color-shades of gray\nIron-manganese concentrations: amount-0 to 5 percent\nElectrical conductivity (mmhos/cm): 13 to 46\nReaction (pH): slightly alkaline or moderately alkaline (7.4 to 8.4)" | ||
}, | ||
"COMPETING SERIES": { | ||
"section": "COMPETING SERIES", | ||
"content": "COMPETING SERIES:\nThis is the Tracosa series in the same family. Similar soils are the Harris and Placedo series.\nTracosa soils: do not have reddish subsoils\nHarris soils: have a mollic epipedon\nPlacedo soils: do not have endosaturation" | ||
}, | ||
"GEOGRAPHIC SETTING": { | ||
"section": "GEOGRAPHIC SETTING", | ||
"content": "GEOGRAPHIC SETTING:\nParent material: fluviomarine depostits derived from igneous, metamorphic, and sedimentary rocks\nLandscape: estuaries\nLandform: tidal marsh\nSlope: less than 1 percent\nPrecipitation Pattern: rainfall is mostly uniform throughout the year but most of the annual rainfall occurs during the Spring, Summer, and Fall months\nMean annual precipitation: 1219 to 1295 mm (48 to 51 in)\nMean annual air temperature: 20.6 to 21.7 degrees C (69 to 71 degrees F)\nFrost-free period: 271 to 300 days" | ||
}, | ||
"GEOGRAPHICALLY ASSOCIATED SOILS": { | ||
"section": "GEOGRAPHICALLY ASSOCIATED SOILS", | ||
"content": "GEOGRAPHICALLY ASSOCIATED SOILS:\nThese are the Follet, Tatlum, and the tentative Amarada and Jonesbay series.\nFollet and Tatlum soils: have less clay throughout; on a similar landform\nAmarada and Jonesbay soils: are permanently submerged." | ||
}, | ||
"DRAINAGE AND PERMEABILITY": { | ||
"section": "DRAINAGE AND PERMEABILITY", | ||
"content": "DRAINAGE AND PERMEABILITY:\nDrainage class: very poorly drained\nSaturated hydraulic conductivity: very low\nRunoff: negligible\nFlooding: very frequently frequency, for very long duration due to daily tides.\nSeasonal water table: Endosaturation occurs between depths of 0 to 203 cm (0 to 80 in) of the surface during the periods of lowest of low tides in most years." | ||
}, | ||
"USE AND VEGETATION": { | ||
"section": "USE AND VEGETATION", | ||
"content": "USE AND VEGETATION:\nMajor uses: wildlife habitat\nNative vegetation: Smooth cordgrass makes up over 80 percent of each area; the remainder is distichlis, Borrichia, and salicornia" | ||
}, | ||
"DISTRIBUTION AND EXTENT": { | ||
"section": "DISTRIBUTION AND EXTENT", | ||
"content": "DISTRIBUTION AND EXTENT:\nGeneral area: These soils are located on the upper Texas Gulf Coast in areas that were influenced by ancient Brazos River.\nLand Resource Region: T- Atlantic and Gulf Coast Lowland Forest and Crop Region\nMLRA 150B Gulf Coast Saline Prairies\nExtent: Small" | ||
}, | ||
"REGIONAL OFFICE": { | ||
"section": "SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE", | ||
"content": "SOIL SURVEY REGIONAL OFFICE (SSRO) RESPONSIBLE: Temple, Texas" | ||
}, | ||
"ORIGIN": { | ||
"section": "SERIES PROPOSED", | ||
"content": "SERIES PROPOSED: Brazoria County, Texas, 2022. The name is from a geographic area close to the series type location." | ||
}, | ||
"REMARKS": { | ||
"section": "REMARKS", | ||
"content": "REMARKS: The series was formerly included in the Tracosa series. The series was separated based on the red subsoil.\nDiagnostic horizons and features recognized in this pedon are:\nParticle-size control section: 25 to 100 cm (10 to 40 in)\nOchric epipedon: 0 to 30 cm (0 to 12 in) (Ag horizon)\nEndosaturation: 0 to 203 cm (0 to 80 in) (Cg and\nC layers)\nAdditional Comments: The mineralogy is based on data from soils with the same texture and parent material." | ||
}, | ||
"ADDITIONAL DATA": { | ||
"section": "ADDITIONAL DATA", | ||
"content": "ADDITIONAL DATA: Particle-size analysis, electronic conductivity, and pH tests were performed at the project office on pedon S2021TX0399114.\nTAXONOMIC VERSION: Keys to Soil Taxonomy, Twelfth Edition, 2014" | ||
}, | ||
"SITE": [ | ||
[ | ||
{ | ||
"drainage": "very poorly", | ||
"drainage_overview": "very poorly" | ||
} | ||
] | ||
], | ||
"HORIZONS": [ | ||
[ | ||
{ | ||
"name": "Ag", | ||
"top": 0, | ||
"bottom": 30, | ||
"dry_hue": "NA", | ||
"dry_value": "NA", | ||
"dry_chroma": "NA", | ||
"moist_hue": "10Y", | ||
"moist_value": 4, | ||
"moist_chroma": 1, | ||
"texture_class": "silty clay loam", | ||
"structure": "massive", | ||
"dry_rupture": "NA", | ||
"moist_rupture": "NA", | ||
"coherence": "NA", | ||
"cf_class": "NA", | ||
"pH": "NA", | ||
"pH_class": "neutral", | ||
"eff_class": "NA", | ||
"distinctness": "clear", | ||
"topography": "smooth", | ||
"narrative": "Ag--0 to 30 cm (0 to 12 in); dark greenish gray (10Y 4/1) silty clay loam; massive; moderately sticky, moderately plastic; many fine roots; many dead roots; electrical conductivity of 42.0 dS/m; neutral; clear smooth boundary. (12 to 32 cm [5 to 13 in] thick)" | ||
}, | ||
{ | ||
"name": "Cg1", | ||
"top": 30, | ||
"bottom": 67, | ||
"dry_hue": "NA", | ||
"dry_value": "NA", | ||
"dry_chroma": "NA", | ||
"moist_hue": "2.5Y", | ||
"moist_value": 5, | ||
"moist_chroma": 4, | ||
"texture_class": "clay", | ||
"structure": "massive", | ||
"dry_rupture": "NA", | ||
"moist_rupture": "NA", | ||
"coherence": "NA", | ||
"cf_class": "NA", | ||
"pH": "NA", | ||
"pH_class": "neutral", | ||
"eff_class": "NA", | ||
"distinctness": "gradual", | ||
"topography": "smooth", | ||
"narrative": "Cg1--30 to 67 cm (12 to 26 in); dark gray (N 4/), clay; massive; very sticky, very plastic; common fine roots; 5 percent fine prominent light olive brown (2.5Y 5/4) masses of oxidized iron; electrical conductivity of 22.0 dS/m by ec meter; neutral; gradual smooth boundary. (combined thickness of the Cg horizons is 48 to 168 cm [19 to 66 in])" | ||
}, | ||
{ | ||
"name": "Cg2", | ||
"top": 67, | ||
"bottom": 112, | ||
"dry_hue": "NA", | ||
"dry_value": "NA", | ||
"dry_chroma": "NA", | ||
"moist_hue": "7.5YR", | ||
"moist_value": 2.5, | ||
"moist_chroma": 1, | ||
"texture_class": "clay", | ||
"structure": "massive", | ||
"dry_rupture": "NA", | ||
"moist_rupture": "NA", | ||
"coherence": "NA", | ||
"cf_class": "NA", | ||
"pH": "NA", | ||
"pH_class": "neutral", | ||
"eff_class": "NA", | ||
"distinctness": "clear", | ||
"topography": "smooth", | ||
"narrative": "Cg2--67 to 112 cm (26 to 44 in); gray (N 5/), clay; massive; very sticky, very plastic; very few very fine roots; 1 percent fine prominent black (7.5YR 2.5/1) manganese masses; 5 percent medium prominent olive yellow (5Y 6/6) masses of oxidized iron; electrical conductivity of 26.0 dS/m by ec meter; neutral; clear smooth boundary." | ||
}, | ||
{ | ||
"name": "C", | ||
"top": 112, | ||
"bottom": 203, | ||
"dry_hue": "NA", | ||
"dry_value": "NA", | ||
"dry_chroma": "NA", | ||
"moist_hue": "5YR", | ||
"moist_value": 5, | ||
"moist_chroma": 4, | ||
"texture_class": "clay", | ||
"structure": "massive", | ||
"dry_rupture": "NA", | ||
"moist_rupture": "NA", | ||
"coherence": "NA", | ||
"cf_class": "NA", | ||
"pH": "NA", | ||
"pH_class": "neutral", | ||
"eff_class": "NA", | ||
"distinctness": "NA", | ||
"topography": "NA", | ||
"narrative": "C--112 to 203 cm (44 to 80 in); reddish brown (5YR 5/4) clay; massive; very sticky, very plastic; 2 percent fine prominent black (7.5YR 2.5/1) manganese masses; 5 percent coarse prominent gray (5Y 6/1) iron depletions; 15 percent medium prominent gray (5Y 6/1) iron depletions; electrical conductivity of 32.0 dS/m by ec meter; neutral. (42 to 141 cm [17 to 56 in] thick)" | ||
} | ||
] | ||
] | ||
} |
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