V2EX organic matter

Organic Matter

Definition / 释义

organic matter有机质;指来自动植物及其残体、分泌物或微生物的物质(通常含碳),常见于土壤、沉积物、水体中,是养分循环与土壤肥力的重要来源。(在不同学科里也可有更具体的界定。)

Pronunciation / 发音(IPA)

/rnk mtr/

Examples / 例句

Soil rich in organic matter holds water better.
富含有机质的土壤更能保持水分。

As leaves decompose, organic matter is converted into nutrients that support a diverse community of microbes and plants.
当落叶分解时,有机质会转化为养分,支持多样的微生物与植物群落。

Etymology / 词源

organic 源自希腊语 organon(“工具、器官”),后来引申为“与生物体/生命过程有关的”;matter 来自拉丁语 materia(“材料、物质”)。合在一起的 organic matter 原义就是“与生物来源相关的物质”,在现代科学语境中多指生物残体及其分解产物所形成的物质。

Related Words / 相关词

Literary Works / 文学与著作中的用例

  • Rachel Carson《Silent Spring(寂静的春天)》(环境写作中讨论土壤与生态过程时常涉及 organic matter 的概念)
  • Aldo Leopold《A Sand County Almanac(沙乡年鉴)》(自然写作中谈土地伦理、土壤与生态系统时常出现相关术语)
  • Charles Darwin《The Formation of Vegetable Mould through the Action of Worms(蚯蚓的作用与植物土壤的形成)》(围绕土壤形成与腐殖过程,语境中常使用 organic matter
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