Skip to Main Content
Modeling Storm Water Runoff and Soil Interflow in a Managed Forest, Upper Coastal Plain of the Southeast US.Author(s): T.J. Callahan; J.D. Cook; Mark D. Coleman; Devendra M. Amatya; Carl C. Trettin
Source: Paper Number: 042254, Written for presentation at the 2004 ASAE/CSAE Annual International Meeting, Sponsored by ASAE/CSAE, Fairmont Chateau Laurier, The Westin, Government Centre, Ottawa, Ontario, Canada, 1 - 4 August 2004
Publication Series: Miscellaneous Publication
PDF: View PDF (310 KB)
DescriptionThe Forest Service-Savannah River is conducting a hectare-scale monitoring and modeling study on forest productivity in a Short Rotation Woody Crop plantation at the Savannah River Site, which is on Upper Coastal Plain of South Carolina. Detailed surveys, i.e., topography, soils, vegetation, and dainage network, of small (2-5 ha) plots have been completed in a 2 square-km watershed draining to Fourmile Creek, a tributary of the Savannah River. We wish to experimentally determine the relative importance of interflow on water yield and water quality at this site. Interflow (shallow subsurface lateral flow) can short-circuit rainfall infiltration, preventing deep seepage and resulting in water and chemical residence times in the watershed much shorter than that if deep seepage were the sole component of infiltration. The soil series at the site (Wagram, Dothan, Fuquay, Ogeechee, and Vaucluse) each have a clay-rich B horizon of decimeter-scale thickness at depths of 1-2 m below surface. As interflow is affected by rainfall intensity and duration and soil properties such as porosity, permeability, and antecedent soil moisture, our calculations made using the Green and Ampt equation show that the intensity and duration of a storm event must be greater than about 3 cm per hour and 2 hours, respectively, in order to initiate interflow for the least permeable soils series (Vaucluse). Tabulated values of soil properties were used in these preliminary calculations. Simulations of the largest rainfall events from 1972-2002 data using the Green and Ampt equation provide an interflow: rainfall ratio of 0 for the permeable Wagram soil series (no interflow) compared to 0.46 for the less permeable Vaucluse soil series. These initial predictions will be compared to storm water hydrographs of interflow collected at the outflow point of each plot and refined using more detailed soil property measurements.
- You may send email to firstname.lastname@example.org to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationCallahan, T.J.; Cook, J.D.; Coleman, Mark D.; Amatya, Devendra M.; Trettin, Carl C. 2004. Modeling Storm Water Runoff and Soil Interflow in a Managed Forest, Upper Coastal Plain of the Southeast US. Paper Number: 042254, Written for presentation at the 2004 ASAE/CSAE Annual International Meeting, Sponsored by ASAE/CSAE, Fairmont Chateau Laurier, The Westin, Government Centre, Ottawa, Ontario, Canada, 1 - 4 August 2004
Keywordshillslope hydrology, interflow, infiltration, Green and Ampt equation, silviculture
- Recovery of small-scale infiltration and erosion after wildfires
- Regional variation of flow duration curves in the eastern United States: Process-based analyses of the interaction between climate and landscape properties
- Establishing riparian vegetation through use of a self-cleaning siphon system
XML: View XML