Next Article in Journal
Hydrological Modelling Using a Rainfall Simulator over an Experimental Hillslope Plot
Previous Article in Journal
Catchment Hydrology during Winter and Spring and the Link to Soil Erosion: A Case Study in Norway
Article Menu

Export Article

Open AccessArticle
Hydrology 2017, 4(1), 16; doi:10.3390/hydrology4010016

Hydrological Modeling and Runoff Mitigation in an Ungauged Basin of Central Vietnam Using SWAT Model

1
Department of Cartography, GIS and Remote Sensing, Georg-August University Goettingen, Goettingen 37077, Germany
2
Faculty of Land Resources and Agricultural Environment (FLRAE), Hue University of Agriculture and Forestry (HUAF), Hue city 0084,Vietnam
3
Remote Sensing and Space Science Laboratory, National University of Mongolia (NUM), Ulaanbaatar 14201, Mongolia
*
Author to whom correspondence should be addressed.
Academic Editor: Luca Brocca
Received: 11 January 2017 / Revised: 14 February 2017 / Accepted: 19 February 2017 / Published: 28 February 2017
View Full-Text   |   Download PDF [5093 KB, uploaded 28 February 2017]   |  

Abstract

The A-Luoi district in Thua Thien Hue province of Vietnam is under extreme pressure from natural and anthropogenic factors. The area is ungauged and suffering from data scarcity. To evaluate the water resources availability and water management, we used Soil and Water Assessment Tools (SWAT). A multi-approach technique was used to calibrate the hydrological model. The model was calibrated in three time scales: daily, monthly and yearly by river discharge, actual evapotranspiration (ETa) and crop yield, respectively. The model was calibrated with Nash-Sutcliffe and R2 coefficients greater than 0.7, in daily and monthly scales, respectively. In the yearly scale, the crop yield inside the model was calibrated and validated with Root Mean Square Error (RMSE) less than 2.4 ton/ha. The water resource components were mapped temporally and spatially. The outcomes showed that the highest mean monthly surface runoff, 323 to 369 mm, between September and November, resulted in extreme soil erosion and sedimentation. The monthly average of actual evapotranspiration was the highest in May and lowest in December. Furthermore, installing “Best Management Practices” (BMPs) reduced surface runoff in agricultural lands. However, using event-based hydrological and hydraulic models in the prediction and simulation of flooding events is recommended in further studies. View Full-Text
Keywords: water management; regionalization; MODIS; best management practice; surface runoff water management; regionalization; MODIS; best management practice; surface runoff
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Rafiei Emam, A.; Kappas, M.; Linh, N.H.K.; Renchin, T. Hydrological Modeling and Runoff Mitigation in an Ungauged Basin of Central Vietnam Using SWAT Model. Hydrology 2017, 4, 16.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Hydrology EISSN 2306-5338 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top