Llanos Costa soil and landscape
Soil profile: Llanos Costa loam, 2 to 5 percent slopes. Llanos Costa soils are characterized by a surface layer of loam and a subsurface layer of clay loam or clay. They are in the aridic soil moisture regime. (Soil Survey of San Germán Area, Puerto Rico; by Jorge L. Lugo-Camacho, Natural Resources Conservation Service)
Landscape: Naturalized pastureland in an area of Llanos Costa loam, 2 to 5 percent slopes. Overgrazed areas should be reestablished and then protected from further overgrazing. Mechanical and chemical means can be used to help control competition from weeds.
The Llanos Costa series consists of very deep, well drained, moderately permeable soils on mountain foot slopes and alluvial fans of the Semiarid Mountains and Valleys MLRA. They formed in gravelly sediments that weathered from basalt, chert and rhyolite. Near the type location, the mean annual temperature is about 80 degrees F., and the mean annual precipitation is about 29 inches. Slopes range from 2 to 12 percent.
TAXONOMIC CLASS: Fine, mixed, semiactive, isohyperthermic Typic Haplargids
Solum thickness is more than 60 inches. Reaction ranges from strongly acid to neutral in the A or Ap horizon and from moderately acid to neutral in the Bt horizons.
USE AND VEGETATION: Most areas of Llanos Costa soils are on pastureland. A few small areas are in cropland, primarily corn and sorghum. Vegetation consists of Guinea grass, Kleberg bluestem grass and other native and introduced grasses and shrubs.
DISTRIBUTION AND EXTENT: Mountain foot slopes and alluvial fans of the Semiarid Mountains and Valleys MLRA. The series is of small extent.
These soils were formerly included in the Amelia series. A soil moisture study performed in the San German Area Soil Survey Update recognizes the Aridic Soil Moisture Regime in southern Puerto Rico. Llanos Costa soils formed in the Alluvium Formation (Qal) (Holocene and Pleistocene).
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/puerto_rico/PR...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/L/LLANOS_COSTA.html
For acreage and geographic distribution, visit:
Llanos Costa soil and landscape
Soil profile: Llanos Costa loam, 2 to 5 percent slopes. Llanos Costa soils are characterized by a surface layer of loam and a subsurface layer of clay loam or clay. They are in the aridic soil moisture regime. (Soil Survey of San Germán Area, Puerto Rico; by Jorge L. Lugo-Camacho, Natural Resources Conservation Service)
Landscape: Naturalized pastureland in an area of Llanos Costa loam, 2 to 5 percent slopes. Overgrazed areas should be reestablished and then protected from further overgrazing. Mechanical and chemical means can be used to help control competition from weeds.
The Llanos Costa series consists of very deep, well drained, moderately permeable soils on mountain foot slopes and alluvial fans of the Semiarid Mountains and Valleys MLRA. They formed in gravelly sediments that weathered from basalt, chert and rhyolite. Near the type location, the mean annual temperature is about 80 degrees F., and the mean annual precipitation is about 29 inches. Slopes range from 2 to 12 percent.
TAXONOMIC CLASS: Fine, mixed, semiactive, isohyperthermic Typic Haplargids
Solum thickness is more than 60 inches. Reaction ranges from strongly acid to neutral in the A or Ap horizon and from moderately acid to neutral in the Bt horizons.
USE AND VEGETATION: Most areas of Llanos Costa soils are on pastureland. A few small areas are in cropland, primarily corn and sorghum. Vegetation consists of Guinea grass, Kleberg bluestem grass and other native and introduced grasses and shrubs.
DISTRIBUTION AND EXTENT: Mountain foot slopes and alluvial fans of the Semiarid Mountains and Valleys MLRA. The series is of small extent.
These soils were formerly included in the Amelia series. A soil moisture study performed in the San German Area Soil Survey Update recognizes the Aridic Soil Moisture Regime in southern Puerto Rico. Llanos Costa soils formed in the Alluvium Formation (Qal) (Holocene and Pleistocene).
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/puerto_rico/PR...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/L/LLANOS_COSTA.html
For acreage and geographic distribution, visit: