The state of Iowa contains diverse landscapes, each with subtle but impactful differences in their physical characteristics. This data set builds on the previously… Read More
Meyer Bohn and Bradley Miller – Iowa Water Center Conference April 6-8, 2021 Bohn-Dows-Topsoil-Thickness-IWC Abstract Abstract The objectives of this study were to… Read More
“Drainage class (natural)” refers to the frequency and duration of wet periods under conditions similar to those under which the soil formed. Alterations of the… Read More
“Water table” refers to a saturated zone in the soil. It occurs during specified months. Estimates of the upper limit are based mainly on observations… Read More
Soil reaction is a measure of acidity or alkalinity. It is important in selecting crops and other plants, in evaluating soil amendments for fertility and… Read More
Saturated hydraulic conductivity (Ksat) refers to the ease with which pores in a saturated soil transmit water. The estimates are expressed in terms of micrometers… Read More
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… Read More
Organic matter is the plant and animal residue in the soil at various stages of decomposition. The estimated content of organic matter is expressed as… Read More
Available water storage (AWS) is the total volume of water (in centimeters) that should be available to plants when the soil, inclusive of rock fragments,… Read More
