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Decision of Available Soil Depth Based on Physical and Hydraulic Properties of Soils for Landscape Vegetation in Incheon International Airport
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Decision of Available Soil Depth Based on Physical and Hydraulic Properties of Soils for Landscape Vegetation in Incheon International Airport
Jung, Yeong-Sang; Lee, Hyun-Il; Jung, Mun-Ho; Lee, Jeong-Ho; Kim, Jeong-Tae; Yang, Jae E;
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Decision of available soil depth based on soil physical and hydraulic properties for the Landscape Vegetation Project in the Incheon International Airport was attempted. The soil samples were collected from the 8 sites at different depths, 0-20 and 20-60cm, for the three project fields, A, B, and C area. Physical and chemical properties including particle size distribution, organic matter content and electrical conductivity were analyzed. Hydrological properties including bulk density and water holding capacity at different water potential, -6 kPa, -10 kPa, -33 kPa, and -1500 kPa were calculated by SPAW model of Saxton and Rawls (2006), and air entry value was calculated by Campbell model (1985). Based on physical and hydrological limitation, feasibility and design criteria of soil depth for vegetation and landfill were recommended. Since the soil salinity of the soil in area A area was in top soil and in deep soil, respectively, landscape vegetation without amendment would not be possible on this area. Available soil depth required for vegetation was 2.51 m that would secure root zone water holding capacity, capillary fringe, and porosity. Available soil depth required for landscape vegetation of the B area soil was 1.51 m including capillary fringe 0.14 m and available depth for 10% porosity 1.35 m. The soils in this area were feasible for landscape vegetation. The soil in area C was feasible for bottom fill purpose only due to low water holding capacity.
Available soil depth;Hydraulic property;Physical property;Landscape vegetation design;
 Cited by
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