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This dataset represents the soil water storage capacity (AWS in mm at 0.25 m depth) from SSURGO and STATSGO soil descriptions for soil map units in the state of northern California that lie within the North Pacific Landscape Conservation Cooperative.
Available Water Storage 0-25 cm - Weighted Average (centimeters).
Available water storage (AWS). The volume of water that the soil, to a
depth of 25 centimeters, can store that is available to plants. It is
reported as the weighted average of all components in the map unit, and
is expressed as centimeters of water. AWS is calculated from AWC
(available water capacity) which is commonly estimated as the difference
between the water contents at 1/10 or 1/3 bar (field capacity) and 15
bars (permanent wilting point) tension, and adjusted for salinity and
fragments.
Data Provided By:
Wendy Peterman, Conservation Biology Institute, North Pacific Landscape Conservation Cooperative
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