Comparison of performance of tile drainage routines in SWAT 2009 and 2012 in an extensively tile-drained watershed in the Midwest

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Guo, Tian ; Gitau, Margaret ; Merwade, Venkatesh ; Arnold, Jeffrey ; Srinivasan, Raghavan ; Hirschi, Michael ; Engel, Bernard (2017)

Subsurface tile drainage systems are widely used in agricultural watersheds in the Midwestern U.S. Tile drainage systems enable the Midwest area to become highly productive agricultural lands, but can also create environmental problems, for example nitrate-N contamination associated with drainage waters. The Soil and Water Assessment Tool (SWAT) has been used to model watersheds with tile drainage. SWAT2012 revisions 615 and 645 provide new tile drainage routines. However, few studies have used these revisions to study tile drainage impacts at both field and watershed scales. Moreover, SWAT2012 revision 645 improved the soil moisture based curve number calculation method, which has not been fully tested. This study used long-term (1991–2003) field site and river station data from the Little Vermilion River (LVR) watershed to evaluate performance of tile drainage routines in SWAT2009 revision 528 (the old routine) and SWAT2012 revisions 615 and 645 (the new routine). Both routines provided reasonable but unsatisfactory uncalibrated flow and nitrate loss results. Calibrated monthly tile flow, surface flow, nitrate-N in tile and surface flow, sediment and annual corn and soybean yield results from SWAT with the old and new tile drainage routines were compared with observed values. Generally, the new routine provided acceptable simulated tile flow (NSE = 0.50–0.68) and nitrate in tile flow (NSE = 0.50–0.77) for both field sites with random pattern tile and constant tile spacing, while the old routine simulated tile flow and nitrate in tile flow results for the field site with constant tile spacing were unacceptable (NSE = −0.77– −0.20 and −0.99–0.21 respectively). The new modified curve number calculation method in revision 645 (NSE = 0.56–0.82) better simulated surface runoff than revision 615 (NSE = −5.95 ~ 0.5). Calibration provided reasonable parameter sets for the old and new routines in LVR watershed, and the validation results showed that the new routine has the potential to accurately simulate hydrologic processes in mildly-sloped watersheds.
  • References (61)
    61 references, page 1 of 7

    Algoazany, A., Kalita, P., Czapar, G., and Mitchell, J.: Phosphorus transport through subsurface drainage and surface runoff from a flat watershed in east central Illinois, USA, J. Environ. Qual., 36, 681-693, https://doi.org/10.2134/jeq2006.0161, 2007.

    Arnold, J., Gassman, P., King, K., Saleh, A., and Sunday, U.: Validation of the subsurface tile flow component in the SWAT model, Trans. ASAE, 99-2138, 1999.

    Basheer, A. K., Lu, H., Omer, A., Ali, A. B., and Abdelgader, A. M. S.: Impacts of climate change under CMIP5 RCP scenarios on the streamflow in the Dinder River and ecosystem habitats in Dinder National Park, Sudan, Hydrol. Earth Syst. Sci., 20, 1331- 1353, https://doi.org/10.5194/hess-20-1331-2016, 2016.

    Boles, C. M., Frankenberger, J. R., and Moriasi, D. N.: Tile Drainage Simulation in SWAT2012: Parameterization and Evaluation in an Indiana Watershed, Trans. ASABE, 58, 1201-1213, https://doi.org/10.13031/trans.58.10589, 2015.

    Cibin, R., Trybula, E., Chaubey, I., Brouder, S. M., and Volenec, J. J.: Watershed-scale impacts of bioenergy crops on hydrology and water quality using improved SWAT model, GCB Bioenergy, https://doi.org/10.1111/gcbb.12307, 2016.

    Cooperative Extension Service: Iowa Drainage Guide, Special Report, revised, Ames, IA: Iowa State University, Cooperative Extension Service, https://books.google.com/books/about/Iowa_ Drainage_Guide.html?id=IKRsHAAACAAJ, 1987.

    Cuadra, P. and Vidon, P.: Storm nitrogen dynamics in tile-drain flow in the US Midwest, Biogeochemistry, 104, 293-308, 2011.

    Diaz, R. J. and Solow, A.: Ecological and economic consequences of hypoxia: topic 2 report for the integrated assessment on hypoxia in the Gulf of Mexico, 1999.

    Drablos, C., Konyha, K., Simmons, F., and Hirschi, M.: Estimating soil parameters used in drainmod for artificialy drained soils in Illinois, ASAE Paper No. 88-2617, St. Joseph, Michgan, ASAE, 1988.

    Du, B., Arnold, J., Saleh, A., and Jaynes, D.: Development and application of SWAT to landscapes with tiles and potholes, Trans. ASAE, 48, 1121-1133, https://doi.org/10.13031/2013.18522, 2005.

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