subsoil
/ˈsʌbsɔɪl/ (bre, ipa) · [sˈʌbsˌɔɪl] /ˈsʌbsɔɪl/ (ame, ipa) · [sˈʌbsˌɔɪl] /ˈsəb-ˌsȯi(-ə)l/ (ame, mw)
subsoil — 名詞
1. The layer of earth that lies beneath the dark surface topsoil, just above the ha
底土
表土下方、岩層上方的土層
The layer of earth that lies beneath the dark surface topsoil, just above the hard bedrock. Plants' roots may reach this layer, but it contains fewer nutrients than the topsoil.
After digging three feet down, Ari hit the hard subsoil beneath the garden.
Ari 挖了三英尺深後，碰到了花園底下堅硬的底土。
digging [depth] + hit + subsoil
The farmer found that the clay subsoil held too much water for the wheat crop.
農夫發現黏土質的底土含水量太高，不適合種植小麥。
clay subsoil + drainage problems
Rachel's trees suffered because their roots could not push through the compacted subsoil.
Rachel 的樹長不好，因為樹根無法穿透壓實的底土。
Trenches were dug into the ground to test the subsoil before laying the foundation.
地面挖了深溝，以便建築工人能在打地基前測試底土狀況。
In this valley the subsoil contains iron-rich minerals that colour the earth orange.
這個山谷的底土含有豐富的鐵礦物，使泥土呈現橙色。
- undersoil
very rare synonym, mostly found in older agricultural texts
- substratum
broader scientific term referring to any layer beneath the surface, not limited to soil
- topsoil
the nutrient-rich uppermost layer of soil that sits above the subsoil
文法句型
the subsoil
用法筆記
Subsoil is distinguished from topsoil, which is the dark, nutrient-rich upper layer where most plants grow. The subsoil layer is lighter in colour and contains less organic matter.
常見錯誤
subsoil — 動詞
- subsoilpresent simple I / you / we / they
- subsoils3rd person singular
- subsoiling-ing form
- subsoiledpast simple
1. To dig into and loosen the deeper layer of earth below the topsoil, allowing air
翻鬆底土
翻耕、鬆動下層土壤
To dig into and loosen the deeper layer of earth below the topsoil, allowing air, water, and roots to move more freely through the ground.
Tamás hired a tractor to subsoil the field before planting the winter wheat.
Tamás 僱了一輛曳引機，在種植冬小麥前翻鬆田地的底土。
subsoil + field before planting
The gardener subsoiled the lawn to improve drainage after the heavy spring rains.
園丁翻鬆了草皮下的底土，以改善春天大雨過後的排水狀況。
subsoil + lawn for drainage
Farmers who subsoil their land every few years often see healthier crops and stronger roots.
每隔幾年就翻鬆底土的農夫，往往能種出更健康的作物，長出更強壯的根系。
Anjali subsoiled the clay soil in the orchard to break up the hard layer underneath.
Anjali 翻鬆果園中黏土層的底土，以破除底下堅硬的土層。
文法句型
subsoil + [land / field]
用法筆記
This verb is mainly used in agricultural and horticultural contexts. The related noun form 'subsoiling' is more common than the verb itself. It is almost always followed by a direct object specifying the area of land being treated.