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Risk Assessment of Soil Erosion in Gyeongju Using RUSLE Method

  • Journal of Environmental Impact Assessment
  • Abbr : J EIA
  • 2011, 20(3), pp.313-324
  • Publisher : Korean Society Of Environmental Impact Assessment
  • Research Area : Engineering > Environmental Engineering

Jeonghak Oh 1 You Ju Han 2 Kim Kyung Tae 3 Woo-Sung Lee 3

1국립산림과학원
2동국대학교
3경북대학교

Accredited

ABSTRACT

The purpose of this study is to present the raw data for establishing the plan of top soil conservation in soil environment and preventing the soil loss by establishing the potential amount of soil loss using RUSLE. The results are as follows. To apply the RUSLE model, we calculated the potential amount of soil loss by using 5 factors; rainfall erosion factor(R),topographical factor(LS), soil erosion factor(K), land cover factor(C) and erosion control factor(P). The assessment map of soil loss was drawn up by classifying 5 grades. According to the soil loss estimation by the RUSLE, it showed that approximately 83.9% of the study area had relatively lower possibility of soil loss which was the 1 ton/㏊ in annual soil loss. Whereas,the 7.0% of the study area was defined as high risk area which was the 10 ton/㏊ in annual. Therefore, this area was needed that there was environment-friendly construction of farm land,improvement of cultivation environment and so forth. In future, if we will analyze the amount of soil loss of Gyeongju national park and Hyeongsan river watershed, we will offer the help to establishing the conservation plan of soil environment in Gyeongsangbuk-do.

Citation status

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