Distribution of Available Silicon of Volcanic Ash Soils in Jeju Island

<div>Correlation analysis of the relationship between elevation and ratio of available Si in the lowest subsoil/topsoil in the typifying pedons on Jeju Island. The open circle is excluded from the fitting.</div>

Applied and Environmental Soil Science

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Figure 4

Figure 4: Distribution of Available Silicon of Volcanic Ash Soils in Jeju Island 