subsoil
gb/sˈʌbsˌɔɪl/ us/sˈʌbsˌɔɪl/
C1
英語
語義
0件の語義
名詞
C1
entity
1
soil beneath the topsoil
the soil under the top layer of soil
用法パターン：
the subsoil; [adjective] subsoil; subsoil beneath [something]
よくある間違い：
Do not use subsoil for the loose, fertile soil on the surface; that is topsoil.
類義語
undersoil (more technical and much less common)
|
lower soil layer (clear descriptive phrase rather than a single technical term)
対義語
topsoil (the fertile surface layer above the subsoil)
コロケーション
clay subsoil
|sandy subsoil
|compacted subsoil
|deep subsoil
|underlying subsoil
|subsoil layer
|subsoil moisture
|subsoil conditions
|subsoil samples
|roots penetrate the subsoil
テーマ
soil
|gardening
|agriculture
|geology
|environment
例文
- The garden has only a thin layer of topsoil over heavy clay subsoil.
- Tree roots can reach deep into the subsoil during dry weather.
- Engineers tested the subsoil before designing the building foundations.
学習者向け例文
- The subsoil under the garden is hard and dry.
- Roots grow down into the subsoil.
動詞
technical
C2
action
2
loosen soil below topsoil
to loosen the hard soil under the surface soil
用法パターン：
[someone] subsoils [a field/soil]; subsoil to [a depth]
よくある間違い：
This verb is mainly used in farming and soil management; in everyday speech, people usually say loosen the soil or dig deeply.
類義語
deep-rip (technical farming term, especially for breaking compacted layers)
|
deep-plow (similar, but may imply turning or plowing deeper soil more generally)
対義語
compact (to press soil down and make it denser rather than loosen it)
コロケーション
subsoil a field
|subsoil compacted ground
|subsoil before planting
|subsoil to a depth
|subsoil with a ripper
|subsoiled land
|subsoiled rows
テーマ
agriculture
|farming
|soil
|gardening
例文
- The farmer subsoiled the field to help water drain through the compacted layer.
- Some growers subsoil before planting trees so the roots can spread more easily.
- The contractor recommended subsoiling the area before laying new turf.
学習者向け例文
- They subsoiled the field before planting.
- Subsoiling helps break hard soil.
文法
辞書形
subsoil
IPA
GB/sˈʌbsˌɔɪl/
US/sˈʌbsˌɔɪl/
音節・強勢
sub - soil （2音節）
Stress on 1st syllable (sub)
活用形
Noun
- Base: subsoil
- Plural: subsoil, subsoils
表現
subsoil compaction
1/sˈʌbsˌɔɪl kˈɑmpˈækʃən/
fixed phrase
technical
compressed lower soil layer
hard, pressed-down soil under the surface
例文
- Heavy machinery can cause subsoil compaction in wet fields.
- The farm used deep ripping to reduce subsoil compaction.
- Subsoil compaction can limit crop growth by trapping roots near the surface.
subsoil drainage
1/sˈʌbsˌɔɪl dɹˈeɪnɪd͡ʒ/
fixed phrase
technical
drainage below ground surface
a way to remove extra water from soil below the surface
例文
- The engineer recommended subsoil drainage behind the retaining wall.
- Good subsoil drainage can stop water from collecting under the lawn.
- The site needed subsoil drainage before the new sports field could be built.
subsoil moisture
1/sˈʌbsˌɔɪl mˈɔɪst͡ʃɚ/
fixed phrase
technical
water stored below topsoil
water in the soil below the top layer
例文
- The wheat survived the dry month because there was still good subsoil moisture.
- Farmers monitor subsoil moisture before deciding when to irrigate.
- Winter rain helped recharge subsoil moisture across the region.
subsoil plow
1/sˈʌbsˌɔɪl plˈaʊ/
fixed phrase
technical
deep soil-loosening plow
a farming tool that breaks hard soil under the surface
例文
- The farmer used a subsoil plow to break the hardpan beneath the field.
- A subsoil plow can improve drainage without burying the topsoil.
- The tractor pulled a subsoil plow through the compacted rows.