Spatial and Temporal Soil and Water Loss in the Lower Reaches of the Jinsha River Based on the SWAT Model

The Soil and Water Assessment Tool (SWAT), an advanced watershed modeling system, can be used to quantitatively analyze the sediment source and is of great significance for rational utilization of land resources, soil and water loss control. In order to improve the simulation accuracy of the SWAT model, the spatial interpolation method of GIDW was used for handling rainfall data. After interpolation processing, the simulation accuracies are greatly improved, the relative errors of runoff and sediment are less than 20% and 10%, and both the Nash-Suttclife coefficient and R2 are greater than 0.7. The estimated results for the years 2001 to 2010 show that 82% of the sediment yield of the whole basin came from dry land, and that from the sloped dry land accounted for 99% of the dry land. In the current case of land use, about 4.34 million tons of sediment is transported into the Jinsha River per year from the Heishui River basin, which is one of the key branches of the Jinsha River for soil and water loss control.

• Record URL:
  https://doi.org/10.2495/CUEE140311
• Availability:
  • Find a library where document is available. Order URL: http://www.witpress.com/elibrary/wit-transactions-on-the-built-environment/157
• Supplemental Notes:
  • Abstract reprinted with permission from WIT Press.
• Corporate Authors:

  WIT Press

  Ashurst Lodge
  Ashurst, Southampton  United Kingdom  SO40 7AA
• Authors:
  • Huang, F Q
  • Huang, C M
  • Di, B F
  • Yin, Q Y
• Conference:
  • 2014 International Conference on Civil, Urban and Environmental Engineering (CUEE 2014)
  • Location: Beijing , China
  • Date: 2014-8-19 to 2014-8-20
• Publication Date: 2015

Language

• English

Media Info

• Media Type: Web
• Pagination: 9p
• Monograph Title: Advanced Civil, Urban and Environmental Engineering
• Serial:
  • WIT Transactions on the Built Environment
  • Issue Number: 157
  • Publisher: Wessex Institute of Technology
  • ISSN: 1743-3509
  • Serial URL: http://library.witpress.com/pages/listBooks.asp?tID=2

Subject/Index Terms

• TRT Terms: Data collection; Erosion; Evaluation and assessment; Land use; Rainfall; Sediments; Simulation; Watersheds
• Identifier Terms: Soil and Water Assessment Tool (SWAT)
• Uncontrolled Terms: Spatiotemporal analysis
• Geographic Terms: China
• Subject Areas: Highways; Hydraulics and Hydrology; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 01571197
• Record Type: Publication
• ISBN: 9781784660451
• Files: TRIS
• Created Date: Jul 28 2015 3:56PM