Abstract ▼ AI-Helper

Soil erosion is one of major issues worldwide. Soils are valuable natural resources as it is, once it is transported into streams it is deemed water quality degradation factor. Soil erosion therefore is need to be controlled to prevent water body protection and to preserve as important resources. Th...

Soil erosion is one of major issues worldwide. Soils are valuable natural resources as it is, once it is transported into streams it is deemed water quality degradation factor. Soil erosion therefore is need to be controlled to prevent water body protection and to preserve as important resources. The Ministry of Environment in South Korea made ‘A bulletin on the Survey of the Erosion of Topsoil’ in 2012 and implement the enforcement ordinance since 2013. The bulletin is based on Universal Soil Loss Equation (USLE) in the procedures, but USLE is not appropriate for entire procedures due to inborn limitation of the equation. Therefore there is a need to revise the bulletin so that measured and estimated soil erosion can be compared. Korean Soil Loss Equation (KORSLE) was selected to estimate soil loss and was applied into two fields to evaluate an approach to revise the bulletin. The estimated soil erosion provided reasonable criteria in comparison to measured soil erosion in calibration and validation. One of most remarkable results is that it was allowed to compare measurements to estimates by KORSLE with several years of monitoring periods, while it wasn’t possible with USLE.

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