Silt as a soil separate consists of mineral soil particles that are 0.002 to 0.05 mm in diameter. In the database, the estimated silt content of each soil layer is given as a percentage, by weight, of the soil material that is less than 2 mm in diameter. The content of sand, silt, and clay … Continue reading Download Iowa Soil Silt Content Maps (gSSURGO)
Tag: soil texture class
USDA Soil Texture Class Macro
An Excel spreadsheet containing a macro for calculating the USDA soil texture class. The macro can be used as a cell function, allowing you to automatically calculate the texture class from a series of cells with percentages of soil separates.