The Effect of Moisture on the Color of Certain Iowa Soils

Abstract

Color is one of the first mentioned and most essential Characteristics to be considered in any system of soil classification. Consequently the soil scientist must be able to-correctly interpret colors and describe them go that other investigators, as veil as laymen, can get a clear conception of-his findings. It is further important that different men interpret soil colors alike,

Special issue ‘Diffuse reflectance spectroscopy in soil science and land resource assessment’

“…1). We note however that some of the first studies reporting the influence of moisture, particle size and chemical composition on soil spectral reflectance (measured as albedo and/or soil colour) date back to the 1920s and 1930s (Ångström, 1925;O'Neal, 1927;Carter, 1931;Hester, 1939).…”