Proceedings of the Korea Water Resources Association Conference (한국수자원학회:학술대회논문집)

Korea Water Resources Association (한국수자원학회)
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Effect of Transport Capacity Formula on Spatial Distribution of Soil Erosion

  • Nguyen, Van Linh (Dept. of Advanced Science and Technology Convergence, Kyungpook National University) ;
  • Yeon, Minho (Dept. of Advanced Science and Technology Convergence, Kyungpook National University) ;
  • Cho, Seongkeun (Dept. of Water Resource, Sungkyunkwan University) ;
  • Lee, Giha (Dept. of Advanced Science and Technology Convergence, Kyungpook National University)
  • Published : 2021.06.03
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Abstract

Soil erosion due to climate change is one of the global environmental issues. Especially, Korea is vulnerable to soil erosion as the frequency of extreme rainfall events and rainfall intensity are increasing. Soil erosion causes various problems such as reduced farmlands, deterioration of water quality in rivers, etc. To these severe problems, understanding the process of soil erosion is the first process. Then, it is necessary to quantify and analyze soil ersoion using an erosion model. Soil erosion models are divided into empirical, conceptual, and physics-based models according to the structures and characteristics of models. This study used GSSHA (Gridded Surface Subsurface Hydrologic Analysis), the physics-based erosion model, running on WMS (Watershed Modeling System) to analyze soil erosion vulnerability of the CheonCheon watershed. In addition, we compared the six sediment transport capacity formulas provided in the model and evaluated the equations fir on this study site. Therefore, this result can be as a primary tool for soil conservation management.

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Acknowledgement

This subject is supported by Korea Ministry of Environment as "The SS projects; 2019002830001"