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Study of dams\
Zhangping Wei 1 *,Han Chang-hai 2
1.Nanjing Hydraulic Research Institute
2.Hydraulic Engineering Department, Nanjing Hydraulic Research Institute
*Correspondence author
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Funding: none
Opened online:20 October 2009
Accepted by: none
Citation: Zhangping Wei,Han Chang-hai.Study of dams\[OL]. [20 October 2009] http://en.paper.edu.cn/en_releasepaper/content/35937
 
 
The continuous ecosystems of natural rivers are altered by construction of dams, which has several negative impacts on fishes. Those mainly includes: (1) Barrier of fishes migration routes, (2) Changes of hydrological and hydraulic conditions for fishes spawning, (3) Reduction and destruction of habitats, (4) Influences of gas supersaturation, (5) Influences of discharged low-temperature water. This paper summarizes some research achievements home and abroad, and then it offers two kinds of solutions to those problems: One is engineering measure, such as installing environmentally friendly hydropower turbines and building ecological fish passages in hydraulic structures; the other is non-engineering measure, which includes Fishes Nature Reserves, ecological compensation and regulation, artificial propagation and stocking, etc.
Keywords:dams;fishes;ecological impacts;solutions
 
 
 

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