Approximating Soil-Moisture Storage in Experimental Watersheds by Means of Precipitation and Streamflow Records1
- K. G. Reinhart2
An estimate of total soil-moisture storage capacity of an experimental watershed is needed to understand its hydrology. A reliable estimate may be very difficult to obtain, particularly in a forested watershed, because of variations in and difficulties of measuring soil depth, root depth, texture, bulk density, stone content, and moisture content. A method is suggested for approximating storage from precipitation and streamflow records. Precipitation minus runoff—in selected periods when ample precipitation follows a dry spell—provides the estimate of soil-moisture storage capacity. The method is illustrated with data from the Fernow Experimental Forest in West Virginia and is applied to two other watersheds in the Northeast. Limitations of the method are also discussed.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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