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http://dx.doi.org/10.5389/KSAE.2022.64.2.037

A Pilot Experiments for Evaluation of Cover Soil Loss from Inclined Upland around Remediated Abandoned Mine Site - The Condition of Chemical Characteristics and Inclination -  

Yun, Sung-Wook (Department of Agricultural Engineering, National Institute of Agricultural Sciences)
Kang, Hui-Cheon (National Environment Lab.)
Kwon, Yo-Seb (National Environment Lab.)
Koh, Il-Ha (National Environment Lab.)
Jeong, Mun-Ho (Technology Planning Team, Korea Mine Rehabilitation and Mineral Resources Corporation)
Yu, Chan (Department of Agricultural Engineering, Gyeongsang National University (Institute of Agriculture and Life Science))
Publication Information
Journal of The Korean Society of Agricultural Engineers / v.64, no.2, 2022 , pp. 37-45 More about this Journal
Abstract
In-situ pilot experiment was carried out to establish a countermeasure on the soil loss from the hill side uplands that was rehabilitated by soil remediation method nearby abandoned mine sites for 2 years. It was considered that the affect of an inclination of cover surface, a stabilization treatment of cover layer by lime and steel refining slag (SRS) and a vegetation of soil surface as an effect factors in the experiment. It was constructed 4 lysimeters (plots, 22 m long, 4 m width) on the hilly side (37% inclination). One plot was control and two plots was treated by 1% lime and SRS. A remind one plot was modified a inclination to 27% to compare the affect of inclination on the amount of cover soil loss. It was attached a reservior tank and water level gauge in the end of lysimeters to measure the amount of the surface water flow and soil loss. It was also installed the automated sensors that could be collect the precipitation, soil moisture content, tension of cover layer in each plots. It was observed that the event of precipitation were caused the soil loss and it were related the physical and chemical properties of cover soil and inclination of surface layer of plots. During the experiment, it was exceeded the national regulation (50 t/ha/yr) in 37% inclination plots even though it was vegetated on the cover soil surface. However, in 27% inclination plot, it was shown that the amount of soil loss was maintained below the national regulation and, more ever, vegetation could reduce the the amount of soil loss. Therefore it was expected that such results could be applied to the future design of rehabilitation projects on the polluted farmland nearby abandoned mine sites.
Keywords
Soil loss; upland soil; anandoned mine sites; inclination; vegetation;
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