枯死

1. Origins, structure, and basic meaning

• Structure: 枯死 combines 枯, withering or drying up, with 死, death, and is read こし; it is also used as 枯死する.
• Basic usage: It denotes a tree or plant drying out and dying, or the resulting plant death.
  • In 水不足で庭の若木が枯死してしまいました。, the young tree dies from lack of water; 樹木の枯死を防ぐため、土の状態を定期的に調べます。 describes checking soil to prevent tree death.

2. Common pitfalls and similar expressions

• Verb and noun roles
  • In 若木が枯死する, the plant is the subject that dies; in 枯死を防ぐ, plant death is the event to be prevented.
• Nuance of てしまう
  • 枯死してしまいました can present the death as a completed, regrettable result.
• 枯死 and 枯れる
  • 枯れる(かれる) broadly describes a plant withering or drying up. 枯死 explicitly states that this process has resulted in death.