Investigation of the water balance of Fakhrabad watershed using SWAT model

Document Type : Research Paper

Authors

1 Ph.D. Student in Soil and Water Conservation, Yazd University, Yazd, Iran

2 Professor, Department of Rangeland and Watershed Management, Faculty of Natural Resources and Desert Studies, Yazd University, Yazd, Iran

3 Master of Civil Engineering, Yazd University

10.29252/aridbiom.2022.16619.1852

Abstract

Water resources management, especially in watersheds without statistics all data, requires the recognition of hydrological processes, especially runoff, as one of the most important and most practical phases of the hydrological cycle. The aim of this study was to determine the efficiency and usability of the SWAT model in simulating the water balance of the Fakhrabad watershed. For the initial implementation of the model, the data required for the model implementation include meteorological data (precipitation, minimum and maximum temperature, relative humidity, and wind speed), baseline maps of the region (digital elevation map, land use, slope and soil map) and monthly discharge data of Fakhrabad hydrometric station. Were used. After the initial implementation of the SWAT model, the output was called to SWAT-CUP software for calibration and validation after sensitivity analysis, the model was implemented to determine the sensitive parameters and the results were reviewed. Calibration and validation were performed for the period 1998-2014 and the accuracy of monthly runoff simulation using the coefficient of determination (R2) and Nash Sutcliffe (NSE) for the calibration phase of 0.73 and 0.71 and for the validation phase of 0.54 and 0.53 was obtained. Acceptable values were also obtained for the uncertainty assessment indicators. P-factor and R-factor were 0.56 and 0.65 for the calibration period and 0.54 and 0.68 for the validation period, respectively. The final results showed that on average of 67% of precipitation enters the atmosphere through evapotranspiration, 23% enters the canals as surface run off and subsurface flow. The results show the efficiency of the SWAT model in simulating the water balance of Fakhrabad watershed and helps to more accurately programing water resources in this basin.

Keywords

References

[1]. Aritmani, M.M., Zynivand, H., Tahmasbi Pour, N., & Haghizadeh. A. (2017). Evaluation of SWAT model in determining the water balance components of Gamasiab basin. Journal of Rainwater Catchment Systems. 5 (2), 51-64, (in Farsi).
 [2]. Faramarzi, M., Abbaspour, K.C., Schulin, R., & Yang. H. (2009). Modelling blue and green water resources availability in Iran. Hydrological Processes, 23 (3), 486–501.
 [3]. Havrylenko, S.B., Bodoque, J.M., Srinivasan, R., Zucarelli, G.V. & Mercuri. P. (2016). Assessment of the soil water content in the Pampas region using SWAT. Catena, 137, 298-309.
[4]. Hosseini, M. (2014). Simulation of water balance in Qarasu watershed, Kermanshah using SWAT model. Journal of Watershed Management Engineering and Management, 6 (1), 63-73, (in Farsi).
 [5]. Hayatzadeh, M. & Mousavi, U. (2018). Modeling the effect of climate change and land use change on the hydrological conditions of the watershed. 13th National Conference on Watershed Management Science and Engineering and 3rd National Conference on Protection of Natural Resources and Environment with a Focus on Watershed Management and Protection of Natural Resources and Environment, Ardabil, (in Farsi).
 [6]. Moradipour, Sh., Zinivand, H. Bahramand, A. R. & Najafinejad, A. (2011). Watershed scale simulation at the watershed scale using hydrological-distribution model and GIS. 7th National Conference on Watershed Management Science and Engineering, Isfahan University of Technology, (in Farsi).
 [7]. Mahdavi, M. & Azarakhshi. M. (2005). Determining the appropriate monthly water balance in small watersheds of the country) Case study: East Azarbaijan and North Khorasan provinces, Iranian Journal of Natural Resources, 415-427, (in Farsi).
[8]. Neitch, S.L., Arnold Kiniry, J.G. & Williams. J.R. (2005). Soil and water assessment tool documentation, user’s manual, Temple, Texas, USA, 494 pages.
 [9]. Nouri, Z. Talebi, A. & Asadi, M. A. (2019). Study of the efficiency of SWAT model in determining the components of the water balance of the basin (Case study: Mehrgerd watershed of Semirom). Iranian Journal of Water Resources Research. 3, 133-143, (in Farsi).
[10]. Nekounam, Z. & Mazidi. A. (2010). Snow cover analysis in Fakhrabad basin of Yazd. Fourth International Congress of Geographers of the Islamic World, (in Farsi).
[11]. Parvizi, S., Talebi, A., Malekinejad, H & Sadeghi. M. (2020). Investigation of climate change on some hydrological parameters of Jamishan watershed using SWAT model. Journal of Environment and Water Engineering, 4, 443-430. (in Farsi).
 [12]. Parvizi, S. (2017). Location of Yazrzamini Dam using Model Water Balance Simulator (SWAT) and Network Analysis Process (ANP) of the study area: Jamishan Basin, Kermanshah Province). Master Thesis in Natural Resources Engineering-Watershed Management, Yazd University, (in Farsi).
 [13]. Uniyal, B., Jha, M.K. & Verma, A.K. (2015). Parameter identification and uncertainty analysis for simulating streamflow in a river basin of Eastern India, Hydrological Processes, 29 (17), 3744-3766.
[14]. Rivas-Tabares, D., Tarquis, A N., Willaarts, B. & Miguel, A. (2019). An accurate evaluation of water availability in sub-arid Mediterranean watersheds through SWAT: Cega-Eresma-Adaja. Journal of Agricultural Water Management, 212, 211-225.
[15]. Remegio, B. & Confesor, J. (2007). Sensitivity analysis and interdependence of the SWAT model parameters. Written for presentation at the 2007 ASABE Annual International Meeting Sponsored by American Society of Agricultural and Biological Engineers Minneapolis Convention Center, Minneapolis, Minnesota
[16]. Shimelis, G., Setegn, Bijan Dargahi., Ragahvan, Srinivasan & Assefa, M. Melesse. (2010). Modeling of sediment yield from Anjeni-Gauged watershed, Ethiopianusing SWAT model. Journal of the American JAWRA Journal of the American Water Resources Association, 46(3), 514-526.
[17]. Xu, Z. X., Pang, J. P., Liu, C. M. & Li, J. Y. (2009). Assessment of runoff and sediment yield in the Miyun Reservoir catchment by using SAWT model. Hydrological Processes, 23, 3619-3630.
[18]. Zahedi, E. (2013). Determination of susceptible areas for construction of Yazrzmini dam using water balance simulator (SWAT model) and network analysis process (ANP) (study area: Darngar Dargaz watershed). Master Thesis in Natural Resources Engineering-Watershed Management, Yazd University. (in Farsi).
[19]. Zare Garizi, A., Talebi, A. & Faramarzi, M. (2018). Identification and prioritization of watershed critical areas in terms of erosion and sediment with SWAT model. Journal of Watershed Engineering and Management, 8(4), 350-361.
 [20]. Zynivand. H. (2010). Simulation of spatial distribution of soil erosion and sediment at the watershed scale. Sixth National Conference on Watershed Management Science and Engineering. Faculty of Natural Resources and Marine Sciences, Tarbiat Modares University. (in Farsi).
Journal of Arid Biome
Volume 12, Issue 1
April 2022
Pages 21-33

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