摘要
三峡水库水位蓄至135 m后,长江部分支流回水河段出现不同程度的富营养化现象,流速变缓是造成这一现象的主要诱发因子。库区内的优势藻类爆发生长是否存在临界流速,以及临界流速怎样测定,已经成为一个亟待解决的问题。通过阐述流速对藻类生长的影响,探讨临界流速在研究及控制三峡库区富营养化过程中的作用和地位。
Entrophication is occurred in the reach of backwater of some tributaries after Three Gorges Reservoir storing up to 135m,and the lower velocity of flow is the main reason for this phenomenon, If there is a critical velocity of flow which make the algae growth rapidly in Three Gorges Reservoir and tributaries and how to certain it are the urgent problems which should be solved. This article will elucidate the effects of velocity of flow to the growth of algae and discuss importance of the critical velocity of flow in study on the eutrophication of the Three Gorges Reservoir.
出处
《微量元素与健康研究》
CAS
2006年第2期48-50,共3页
Studies of Trace Elements and Health
基金
国家科技部重点科技专题项目(2001BA604A01-02)
关键词
富营养化
三峡库区
临界流速
eutrophieation
Three Gorges Reservoir
critical velocity of flow
