Prediction of the soil-erosion in the upper stream of the Huaihe River based on the grid Xinanjiang model
- Article
- Figures
- Metrics
- Preview PDF
- Reference
- Related
- Cited by
- Materials
Abstract:
The grid-based Xinanjiang model was coupled with the Universal Soil Loss Equation to simulate water -sediment in the upstream of the Huaihe River.Based on the coupled model and DEM data, land use data, soil data and hydrological data of Xixian station during 2000-2010 years, the soil erosion in the upstream of the Huaihe River was simulated, and by setting two land-use patterns scenarios, the effect of different land use scenarios on soil erosion in the study area was quantitative analyzed. The results showed that the grid-based water - sediment coupled model had a better simulation accuracy in the upstream of the Huaihe River, the relative error of the simulated sediment load was less than 15%, and the uncertainty factor was above 0.6, which could meet the requirements of the sediment simulation accuracy. The woodland area was increased by 5%, then the amount of soil erosion of the basin was decreased by 8.78%, while an increase of 8% to urban, the soil erosion of the basin was decreased by 12.73%. The outputs can provide a reference value to soil and water conservation protecting in the upstream of the Huaihe River.
Keywords:
Project Supported:
Clc Number:
Mobile website
® 2024 All Rights Reserved
冀公网安备13010502002656号
冀公网安备13010502002656号