Traceability simulation of drainage in irrigation areas along the south bank of the Yellow River based on the SWAT model

Frontiers in Environmental Science, Journal Year: 2025, Volume and Issue: 13

Published: Jan. 23, 2025

The simulation of drainage sources in irrigation areas at the watershed scale is great significance for understanding characteristics and status districts under various water-saving climatic conditions. In this study, our focus was on located south bank Yellow River Hangjin Banner. We aimed to analyze simulate flow rate overall volume ditch by developing a soil water assessment tool (SWAT) model. measured data were utilized calibrate validate model explore structure selected study area. results indicated that average annual area 4355.65 × 10 4 m³, primary source subsurface drainage, which accounted approximately 68% total drainage. Subsurface second-largest source, contributing 31%, while surface negligible proportion, merely 1% Concerning proportion relative each area, Balahey 20%, Jianshe 45%, Dugui 35%. Moreover, parameters optimized using SWAT-CUP software obtain R 2 , NSE Re RMSE values 0.65, 0.60, −8.54%, 384.65 m 3 respectively, calibration period, corresponding 0.63, 0.56, −7.82%, 389.65 validation period. traceability are crucial importance efficient utilization resources

Language: Английский

Simulation of water flow and sulfate transport in a large freshwater lake basin under natural and anthropogenic disturbances

Water Research, Journal Year: 2025, Volume and Issue: unknown, P. 123805 - 123805

Published: May 1, 2025

Language: Английский