Toward the Development of Quantitative Soil Morphological Indicators of Water Table Behavior
- L. P. Galusky,
- M. C. Rabenhorst and
- R. L. Hill
The current practice using soil hydromorphological data to infer water table behavior is limited to a qualitative characterization of the water table regime. While this is useful for many purposes, it would be a substantial improvement to be able to use hydrope-dological inference to estimate the long-term, average monthly water table depth, as well as the cumulative relative frequency of water table occurrence vs. depth (depth-excee-dence probabilities). Unfortunately, most hydropedological studies have been based on a hydrologic record that is too brief to permit truly quantitative correlation between soil morphology and the water table regime. We present a multiple regression model to extend existing short-term water table records into the past using available weather data. Where long-term weather data are available, this model can be used to provide sufficient hydrological information to support quantitative hydropedological analysis. We then develop a method for estimating the long-term, average monthly water table hydrograph and depth-exceedence probabilities, based on soil hydromorphological features.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
Copyright © 1998. . Copyright © 1998 by the Soil Science Society of America, Inc., 5585 Guilford Rd., Madison, WI 53711 USA