V2EX nutrient runoff

Nutrient Runoff

Definition / 释义

nutrient runoff:指雨水、灌溉水等地表径流把营养盐(常见为氮、磷,来自化肥、粪肥或污水)从农田、草坪等地带走并进入河流、湖泊与海湾的过程,常导致水体富营养化、藻华和缺氧等生态问题。

Pronunciation / 发音

/nutrint rnf/

Examples / 例句

Nutrient runoff can cause algae to grow too fast in lakes.
营养盐径流会导致湖泊中的藻类过度生长。

After heavy storms, nutrient runoff from nearby farms flowed into the river, increasing nitrogen levels and worsening seasonal dead zones downstream.
暴雨过后,附近农场的营养盐径流进入河流,抬高了氮含量,并加剧了下游季节性的“缺氧死区”。

Etymology / 词源

  • nutrient 来自拉丁语 nutrire(“滋养、喂养”),经法语进入英语,意为“提供营养的物质”。
  • runoffrun(流动、流走)+ off(离开)构成,在水文学语境中指“(降雨等形成的)径流”。
    组合起来的 nutrient runoff 属于环境科学与农业语境中的常用术语,强调“营养盐被水流带离陆地并进入水体”。

Related Words / 相关词

Literary Works / 文学作品

  • The Omnivore’s Dilemma(Michael Pollan,《杂食者的两难》):讨论工业化农业与化肥使用带来的水体污染与径流问题。
  • The Sixth Extinction(Elizabeth Kolbert,《第六次大灭绝》):涉及人类活动改变生态系统的多种机制,相关章节常与农业面源污染、水体生态退化并置讨论。
  • A Sand County Almanac(Aldo Leopold,《沙乡年鉴》):以“土地伦理”为核心讨论土地利用与生态后果,常被用于引出包括径流污染在内的环境议题。
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