表ひょう土ど

noun

topsoil; surface soil

Refers to the uppermost layer of soil, important for farming and ecology. Common in technical and environmental discussions.

• 大おお雨あめで表ひょう土どが流ながされてしまった。

  The topsoil was washed away by the heavy rain.

• 表ひょう土どの保ほ全ぜんは農のう業ぎょうにとって重じゅう要ようだ。

  Preserving topsoil is important for agriculture.