topsoil
US /ˈtɑːp.sɔɪl/
UK /ˈtɒp.sɔɪl/
名詞
表土, 上層土
the upper, outermost layer of soil, usually the top 5–10 inches (13–25 cm), which is rich in organic matter and nutrients, making it the most fertile part of the soil
例:
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Gardeners often add fresh topsoil to their beds to improve fertility.
庭師は肥沃度を高めるために、しばしば新鮮な表土を花壇に加えます。
•
Erosion can lead to the loss of valuable topsoil.
浸食は貴重な表土の損失につながる可能性があります。