Wapato soil series
A representative soil profile of Wapato silty clay loam, 0 to 3 percent slopes. (Soil Survey of Benton County, Oregon; by Matthew H. Fillmore, Natural Resources Conservation Service)
The Wapato series consists of very deep, poorly drained soils that formed in loamy mixed alluvium. Wapato soils are on flood plains. Slopes are 0 to 3 percent. The mean annual precipitation is about 45 inches and the mean annual temperature is about 52 degrees F.
TAXONOMIC CLASS: Fine-silty, mixed, superactive, mesic Fluvaquentic Endoaquolls
The soils are saturated with water during the winter season unless artificially drained. The mean annual soil temperature ranges from 52 to 56 degrees F. Depth to bedrock is greater than 60 inches. The 10 to 40 inch control section average 27 to 35 percent clay and less than 15 percent sand coarser than very fine sand. Depth to aquic conditions with distinct or prominent redox concentrations and chroma of 2 or less is from 0 to 12 inches. The mollic epipedon is 10 to 24 inches thick.
USE AND VEGETATION: Most of these soils are cultivated. Hay and pasture are major crops. When drained, beans and small grains are also raised. Native vegetation is red alder, Oregon ash, black cottonwood, willow, wild rose and sedges.
DISTRIBUTION AND EXTENT: Wapato soils occur on flood plains in southwestern Washington, in the Willamette Valley, and other interior river valleys of southern and southwestern Oregon. MLRA 2, 5. The series is of moderate extent. Wapato soils are found on the Ingram geomorphic surface in the Willamette Valley, Oregon. Differentiation from the Sauvie series needs further evaluation.
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/oregon/OR003/0...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/W/WAPATO.html
For acreage and geographic distribution, visit:
casoilresource.lawr.ucdavis.edu/see/#wapato
Wapato soil series
A representative soil profile of Wapato silty clay loam, 0 to 3 percent slopes. (Soil Survey of Benton County, Oregon; by Matthew H. Fillmore, Natural Resources Conservation Service)
The Wapato series consists of very deep, poorly drained soils that formed in loamy mixed alluvium. Wapato soils are on flood plains. Slopes are 0 to 3 percent. The mean annual precipitation is about 45 inches and the mean annual temperature is about 52 degrees F.
TAXONOMIC CLASS: Fine-silty, mixed, superactive, mesic Fluvaquentic Endoaquolls
The soils are saturated with water during the winter season unless artificially drained. The mean annual soil temperature ranges from 52 to 56 degrees F. Depth to bedrock is greater than 60 inches. The 10 to 40 inch control section average 27 to 35 percent clay and less than 15 percent sand coarser than very fine sand. Depth to aquic conditions with distinct or prominent redox concentrations and chroma of 2 or less is from 0 to 12 inches. The mollic epipedon is 10 to 24 inches thick.
USE AND VEGETATION: Most of these soils are cultivated. Hay and pasture are major crops. When drained, beans and small grains are also raised. Native vegetation is red alder, Oregon ash, black cottonwood, willow, wild rose and sedges.
DISTRIBUTION AND EXTENT: Wapato soils occur on flood plains in southwestern Washington, in the Willamette Valley, and other interior river valleys of southern and southwestern Oregon. MLRA 2, 5. The series is of moderate extent. Wapato soils are found on the Ingram geomorphic surface in the Willamette Valley, Oregon. Differentiation from the Sauvie series needs further evaluation.
For additional information about the survey area, visit:
www.nrcs.usda.gov/Internet/FSE_MANUSCRIPTS/oregon/OR003/0...
For a detailed soil description, visit:
soilseries.sc.egov.usda.gov/OSD_Docs/W/WAPATO.html
For acreage and geographic distribution, visit:
casoilresource.lawr.ucdavis.edu/see/#wapato