|Title:||Examination of the water balance of irrigated paddy fields in SWAT 2009 using the curve number procedure and the pothole module |
|Authors:||Sakaguchi, A., S. Eguchi and M. Kasuya |
|Journal:||Soil Science and Plant Nutrition |
|Article ID:|| |
|URL (non-DOI journals):|| |
|Broad Application Category:||hydrologic only |
|Primary Application Category:||rice paddy and/or production application |
|Secondary Application Category:||irrigation impacts or irrigation BMP scenarios |
|Watershed Description:||The Arata River watershed in central Japan. The area was approximately 3 km^2, of which 56.4% was upland fields and 18.0% was paddy fields. |
|Calibration Summary:||The CN approach: NSE=0.58, R2=0.66, RMSE=4.88(mm d−1), PBIAS=16%.
The pothole approach: NSE=‒4.02, R2=0.57, RMSE=10.50(mm d−1), PBIAS=7%. |
|Validation Summary:||The CN approach: NSE=0.65, R2=0.65, RMSE=7.14(mm d−1), PBIAS=0%.
The pothole approach: NSE=-0.13, R2=0.55, RMSE=12.17(mm d−1), PBIAS=10%. |
|General Comments:||The CN approach: Rice paddy fields were simulated by the curve number method.
The pothole approach: Rice paddy fields were simulated by the pothole module. |
|Keywords:||SWAT, paddy field, irrigation, pothole, curve number |