| Title: | Simulated runoff and sediment yield responses to land-use change using the SWAT Model in northeast China |
| Authors: | Zhang, L., X. Meng, H. Wang and M. Yang |
| Year: | 2019 |
| Journal: | Water |
| Volume (Issue): | 11 |
| Pages: | |
| Article ID: | 915 |
| DOI: | 10.3390/w11050915 |
| URL (non-DOI journals): | |
| Model: | SWAT |
| Broad Application Category: | hydrologic and pollutant |
| Primary Application Category: | land use change |
| Secondary Application Category: | sediment loss and transport |
| Watershed Description: | 7,919 km^2 portion of the Hun river, located in Liaoning Province in northwest china |
| Calibration Summary: | |
| Validation Summary: | |
| General Comments: | This study was published as part of the "Application of the China Meteorological Assimilation Driving Datasets for the SWAT Model (CMADS) in East Asia" special issue that was published in Water. The special issue can be accessed on-line at https://www.mdpi.com/journal/water/special_issues/CMADS. |
| Abstract: | Land-use change is one key factor influencing the hydrological process. In this study, the
Hun River Basin (HRB) (7919 km2), a typical alpine region with only four gauge meteorological
stations, was selected as the study area. The China Meteorological Assimilation Driving Datasets
for the SWAT model (CMADS), widely adopted in East Asia, was used with the Soil and Water
Assessment Tool (SWAT) model to simulate runoff and sediment yield responses to land-use change
and to examine the accuracy of CMADS in the HRB. The criteria values for daily/monthly runoff and
monthly sediment yield simulations were satisfactory; however, the validation of daily sediment yield
was poor. Forestland decreased sediment yield throughout the year, increased water percolation,
and reduced runoff during the wet season, while it decreased water percolation and increased runoff
during the dry season. The responses of grassland and forestland to runoff and sediment yield
were similar, but the former was weaker than the latter in terms of soil and water conservation.
Cropland (urban land) generally increased (increased) runoff and increased (decreased) sediment
yield; however, a higher sediment yield could occur in urban land than that in cropland when
precipitation was light. |
| Language: | English |
| Keywords: | runoff, sediment yield, land-use change, SWAT, CMADS |