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Oligotrophic

Definition / 释义

(尤指湖泊、海域、土壤等)贫营养的;营养盐含量低的。常用来描述氮、磷等营养物质少、初级生产力较低、但水体往往更清澈的生态环境。(在生物学中也可指“少营养条件下生长的”生物或环境。)

Pronunciation / 发音

/ˌɒlɪɡəˈtrɒfɪk/

Examples / 例句

The lake is oligotrophic, with clear water and few algae.
这个湖是贫营养型的,水很清澈,藻类很少。

After decades of pollution controls, the reservoir shifted from eutrophic to oligotrophic conditions, changing the fish community.
在数十年的污染控制后,这座水库从富营养状态转为贫营养状态,鱼类群落也随之改变。

Etymology / 词源

oligo- 来自希腊语 olígos(“少、稀少”),**-trophic** 来自希腊语 trophḗ(“营养、滋养”)。合起来字面意思就是“营养很少的”。该词常见于生态学、湖沼学与环境科学,用于和 eutrophic(富营养的) 等概念对比。

Related Words / 相关词

Literary Works / 文学与著作例证

  • Limnology: Lake and River Ecosystems(Robert G. Wetzel)
  • Ecology of Freshwaters: Man and Medium(Brian Moss)
  • Principles of Environmental Science: Inquiry and Applications(William P. Cunningham & Mary Ann Cunningham)
  • The Encyclopedia of Lakes and Reservoirs(编著类参考书,条目中常用该词描述湖库营养状态)
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