File:雀榕_Ficus_superba_var._japonica_20210717091156_20.jpg · Wikimedia Commons · See Wikimedia Commons
Also known as bole, tree trunk, log
树木的主要茎干，木质，由地面开始，向上到分为树枝为止
A trunk is the main wooden part of a tree that grows upward from the ground and supports the branches and leaves above it. It matters because it provides the structural strength that allows trees to grow tall and reach sunlight, while also transporting water and nutrients throughout the tree.
AI-generated from the Wikipedia summary — may contain errors.
Wikidata facts
- Subclass of
- raw material
- Part of
- tree
- Image
- Yellow birch trunk.jpg
- Has use
- log cabin
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- maintained by WikiProject
- WikiProject Plants
- Commons category
- Tree trunks
- Commons gallery
- Tree trunks
- on focus list of Wikimedia project
- Wikipedia:Vital articles/Level/4
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Article · 中文
树干，是指树木分枝以下的主轴部分，為樹木的主要莖幹，木質，範圍由地面開始向上到分為樹枝為止。樹幹由木本植物的莖特化而來，通常外包有樹皮。 树干的主要作用是将叶子提高到地面以上，使树木能够超过其他植物，并与它们争夺光线。樹幹裡的木質部負責運輸水分及溶解於水裡面的離子往上運輸，韌皮部則雙向運輸營養，前者主要有助於光合作用，後者則幫助新陳代謝。 樹幹可為木材的來源，內有年輪記錄年齡。不同樹種的樹幹外觀不同，可以作為植物分類的依據。
Abstract from DBpedia / Wikipedia · CC BY-SA
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