Simulation of runoff and sediment yield for the calo watershed, Vinh Phuc province by using swat model
Main Article Content
Abstract
Abstract. Smallest watershed is considered to be the ideal unit for management of the water resources in a water basin. Extraction of water-shed parameters using Remote Sensing and Geographical Information System (GIS) and use of mathematical models is the current trend for hydrologic evaluation of watersheds. The Soil and Water Assessment Tool (SWAT) having an interface with ArcView GIS software (AVSWAT2005) was selected for the estimation of runoff and sediment yield from an area of Vinh Phuc province, an intermediate watershed of Ca Lo River, located in Western Tam Dao mountain which cover nearly all region of the VinhPhuc province . Base on Hydo Response Unit HRU ( as the basin parcel ), the performance of the model was evaluated using statistical and graphical methods to assess the capability of the model in simulating the run-off and sediment yield from the study area. Result of the study are informations on quality and quatity of water in each sub basin and also for whole of the basin so it will supply valuable water information for integrated management of the Ca Lo Basin area and also for Vinh Phuc province.
Keywords: SWAT model, Calibration, Validation, Remote Sensing, GIS, Runoff, Hydo Response Unit HRU, basin parcel, Sediment Yield, SWAT model, Hydrological analysis.References
[2] J. G. Arnold, and N. Fohrer, “SWAT2000: Current capabilities and research opportunities in applied watershed modeling,” Hydrology Process, Vol. 19, pp. 563–572, 2005.
[3] J. G. Arnold, R. S. Srinivasan, and J. R. Williams, “Large area hydrologic modeling and assessment: Part 1. Model development,” Journal of the American Water Resources Association, Vol. 34, No. 7389, 1998.
[4] J. Benaman, C. A. Shoemaker, and D. A. Haith, “Modeling non-point source pollution using a distributed water-shed model for the Cannonsville Reservoir Basin,” Delaware County, New York. Proceedings of the World Water & Environmental Resources Congress, May 20-24, 2001.
[5] D. K. Borah and M. Bera, “SWAT model background and application reviews,” Paper Number: 032054, Presented at the ASAE Annual International Meeting, July 27-July 30, 2003, Las Vegas, Nevada, USA.
[6] K. Eckhartd and J. G. Arnold, “Automatic calibration of a distributed catchment model,” Journal of Hydrology, Vol. 251, pp. 103–109, 2001.
[7] Winchell M., R. Srinivasan R., Di Luzio M. and Arnold J. G. ArcSWAT Interface for SWAT2005. Grassland, Soil & Water Research Laboratory, USDA Agricultural Research Service, Temple, Texas, 2007.
[8] Ton T. C. et al (1996), Vietnamese Soil Types, (Vietnamese version)Vietnam Agriculture Publishing House.
[9] Ministry of Agriculture and Rural Development, Atlas of some selected hydraulic works of Vietnam, 2003.
[10] vizswat.tamu.edu