Lazbuddie soil series
Profile of Lazbuddie soil in an area of Lazbuddie clay, 0 to 1 percent slopes, showing accumulations of secondary carbonates throughout the profile and a strong calcic horizon at about 140 cm.(Soil Survey of Deaf Smith County, Texas) by Thomas C. Byrd, Natural Resources Conservation Service.
The Lazbuddie series consists of very deep, moderately well drained, very slowly permeable soils that formed in calcareous, clayey lacustrine deposits of Quaternary age. These nearly level soils are on playa steps in large playa basins. Slope ranges from 0 to 1 percent. Mean annual precipitation is 483 mm (19 in) and mean annual temperature is 16 degrees C (61 F).
TAXONOMIC CLASS: Fine, smectitic, thermic Calcic Haplusterts
Soil moisture: An ustic moisture regime bordering on typic. The soil moisture control section is dry in some or all parts for more than 180 but less than 205 cumulative days in normal years. July through August and November through March are the driest months. These soils are intermittently moist in September through October and April through June; however, lower landscape positions result in higher "effective" precipitation.
Mean annual soil temperature: 15 to 18 degrees C (59 to 64 F).
Depth to secondary calcium carbonate: 13 to 100 cm (5 to 40 in).
Depth to calcic horizon: 100 to 150 cm (40 to 60 in).
Depth to slickensides: 6 to 25 cm (2 to 10 in).
Linear extensibility of top 1 meter (40 in): 7 to 10 cm (2.75 to 4 in).
Solum thickness: more than 203 cm (80 in).
Particle-size control section (weighted average): 40 to 60 percent silicate clay.
This is a cyclic soil and undisturbed areas have gilgai microrelief with microhighs 13 to 46 cm (5 to 18 in) higher than microlows. Distance between the center of the microhigh and the center of the microlow is about 1.5 to 6 m (5 to 20 ft). The microhigh makes up about 25 percent, the intermediate area between the high and low about 50 percent, and the microlow about 25 percent. Cracks open and close each year, except during higher than normal rainfall years, and remain open for 150 to 210 cumulative days during most years. When dry, 1.3 to 7.5 cm (0.5 to 3 in) wide cracks extends from the surface to a depth of 100 cm (40 in) or more. Cracks are more prominent in the microlow. The range in characteristics represents 50 percent or more of each pedon unless otherwise stated.
USE AND VEGETATION: Used mainly for livestock grazing. Some areas are cultivated to wheat, cotton, or grain sorghum. Vegetation varies according to amount of water available. Native vegetation includes buffalograss, blue grama, vine mesquite, and western wheatgrass. This soil has been correlated to the Deep Hardland (R077CY022TX) ecological site in MLRA-77C.
DISTRIBUTION AND EXTENT: Southern High Plains, Southern Part (MLRA 77C of LRR H) of west Texas and eastern New Mexico. The series is of moderate extent. These soils were formerly included in the Lipan and Roscoe series.
Lazbuddie soil series
Profile of Lazbuddie soil in an area of Lazbuddie clay, 0 to 1 percent slopes, showing accumulations of secondary carbonates throughout the profile and a strong calcic horizon at about 140 cm.(Soil Survey of Deaf Smith County, Texas) by Thomas C. Byrd, Natural Resources Conservation Service.
The Lazbuddie series consists of very deep, moderately well drained, very slowly permeable soils that formed in calcareous, clayey lacustrine deposits of Quaternary age. These nearly level soils are on playa steps in large playa basins. Slope ranges from 0 to 1 percent. Mean annual precipitation is 483 mm (19 in) and mean annual temperature is 16 degrees C (61 F).
TAXONOMIC CLASS: Fine, smectitic, thermic Calcic Haplusterts
Soil moisture: An ustic moisture regime bordering on typic. The soil moisture control section is dry in some or all parts for more than 180 but less than 205 cumulative days in normal years. July through August and November through March are the driest months. These soils are intermittently moist in September through October and April through June; however, lower landscape positions result in higher "effective" precipitation.
Mean annual soil temperature: 15 to 18 degrees C (59 to 64 F).
Depth to secondary calcium carbonate: 13 to 100 cm (5 to 40 in).
Depth to calcic horizon: 100 to 150 cm (40 to 60 in).
Depth to slickensides: 6 to 25 cm (2 to 10 in).
Linear extensibility of top 1 meter (40 in): 7 to 10 cm (2.75 to 4 in).
Solum thickness: more than 203 cm (80 in).
Particle-size control section (weighted average): 40 to 60 percent silicate clay.
This is a cyclic soil and undisturbed areas have gilgai microrelief with microhighs 13 to 46 cm (5 to 18 in) higher than microlows. Distance between the center of the microhigh and the center of the microlow is about 1.5 to 6 m (5 to 20 ft). The microhigh makes up about 25 percent, the intermediate area between the high and low about 50 percent, and the microlow about 25 percent. Cracks open and close each year, except during higher than normal rainfall years, and remain open for 150 to 210 cumulative days during most years. When dry, 1.3 to 7.5 cm (0.5 to 3 in) wide cracks extends from the surface to a depth of 100 cm (40 in) or more. Cracks are more prominent in the microlow. The range in characteristics represents 50 percent or more of each pedon unless otherwise stated.
USE AND VEGETATION: Used mainly for livestock grazing. Some areas are cultivated to wheat, cotton, or grain sorghum. Vegetation varies according to amount of water available. Native vegetation includes buffalograss, blue grama, vine mesquite, and western wheatgrass. This soil has been correlated to the Deep Hardland (R077CY022TX) ecological site in MLRA-77C.
DISTRIBUTION AND EXTENT: Southern High Plains, Southern Part (MLRA 77C of LRR H) of west Texas and eastern New Mexico. The series is of moderate extent. These soils were formerly included in the Lipan and Roscoe series.