Definitions for "Available Water Capacity"
Water that is held on the outer coating of soil particles and is freely available to the plant. It is the water which is retained in a soil between its field capacity and permanent wilting point.
The capacity of soils to hold water available for use by most plants. It is commonly defined as the difference between the amount of soil water at field capacity and the amount at wilting point. It is commonly expressed as inches of water per inch of soil. The capacity, in inches, in a 60-inch profile or to a limiting layer is expressed as inches. 12 inches
the capacity of soils to hold water available for use by most plants, usually defined as water bewteen -33 kPa and -1500 kPal. In a 2 meter profile, or a more shallow limiting layer, the values are as following: Very low 0-3 in 0-7.5 cm Low 3-6 in 7.5-15 cm Moderate 6-9 in 15-23 cm High 9-12 in 23-30 cm Very high More than 12 in More than 30 cm