sapwood

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英 { "us": "", "uk": "" }
数据源: ai_enrichment
sapwood 指树木中位于树皮和心材之间的年轻、活性的木质部分,负责输送水分和养分,通常颜色较浅。

用法要点

名词用法

sapwood 主要作为可数名词使用,指树木的边材部分,常用于描述木材结构或林业相关话题。

• the sapwood of the tree
• sapwood thickness
• sapwood area

介词搭配

常与介词 of 连用表示所属关系,或与 in 连用表示位置。在学术语境中,可能涉及 between、from 等介词。

• sapwood of oak
• water transport in sapwood
• distinguish between sapwood and heartwood

语域说明

sapwood 属于专业术语,常见于林业、植物学、木材加工等学术或技术领域,日常对话中较少使用。

• sapwood decay in forestry
• sapwood properties in wood science
• sapwood function in biology

基础例句

When cutting firewood, we often remove the sapwood because it burns too quickly.

砍柴时,我们通常会去掉边材,因为它烧得太快了。

The sapwood of this pine tree is much lighter in color than the heartwood.

这棵松树的边材颜色比心材浅得多。

In woodworking, sapwood is sometimes avoided for furniture due to its softness.

在木工中,边材因为较软,有时不被用于制作家具。

高级例句

The study found that sapwood conductivity significantly affects water transport in drought conditions.

研究发现,边材的导水性在干旱条件下显著影响水分输送。

In timber grading, sapwood content is a key factor determining durability and value.

在木材分级中,边材含量是决定耐久性和价值的关键因素。

Forest management practices aim to reduce sapwood decay to maintain tree health and productivity.

森林管理实践旨在减少边材腐烂,以维持树木健康和生产力。

高频搭配

verb

remove sapwooddistinguish sapwoodpreserve sapwoodstudy sapwoodmeasure sapwood

adjective

light sapwoodyoung sapwoodactive sapwoodthin sapwooddecayed sapwood

noun

sapwood thicknesssapwood areasapwood functionsapwood colorsapwood layer

preposition

sapwood ofsapwood insapwood fromsapwood betweensapwood around

phrase

sapwood and heartwoodsapwood of the treesapwood in timbersapwood water contentsapwood decay resistance

常见错误

❌ 错误:The sapwood is the hard part of the tree.
✓ 正确:The sapwood is the softer, outer part of the tree.

错误地将 sapwood 描述为坚硬部分;实际上,边材通常较软,位于树木外层,负责输送功能,而心材才是较硬的内层。

❌ 错误:Sapwood and bark are the same thing.
✓ 正确:Sapwood is inside the bark, distinct from it.

混淆了 sapwood(边材)和 bark(树皮);边材是树皮内部的木质部分,两者在结构和功能上不同,树皮是保护层,边材是活性的输导组织。

近义词辨析

heartwood

heartwood 指树木中心较老、已死亡的木质部分,颜色较深,主要提供结构支撑,而 sapwood 是外层年轻、活性的部分,负责输送水分和养分。

In oak trees, the dark heartwood is more durable than the light sapwood.

alburnum

alburnum 是 sapwood 的较少用同义词,特指边材,但在现代英语中 sapwood 更常见;alburnum 可能出现在历史或专业文献中,含义相同但使用频率低。

The alburnum, or sapwood, is crucial for nutrient transport in young trees.