Last Updated：2025/12/07
During the field survey, the soil scientist identified a natric argillic horizon in the lower subhorizon, its high exchangeable sodium saturation clearly restricting drainage and plant root development.
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During the field survey, the soil scientist identified a natric argillic horizon in the lower subhorizon, its high exchangeable sodium saturation clearly restricting drainage and plant root development.
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現地調査で、土壌学者は下部の亜層が交換性ナトリウムで15％を超えて飽和しているアルジル層を確認し、その高いナトリウム飽和度が排水と植物の根の発育を明らかに妨げていると報告した。
