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Ecological fish way with multi-flow-speed channels

A flow rate and ecological technology, applied in water conservancy engineering, sea area engineering, climate change adaptation, etc., can solve the problems of inability to maintain species diversity and ecological balance, single fish species, etc., to maintain species diversity and ecological balance, improve The effect of overfishing and the effect of increasing species

Active Publication Date: 2016-01-06
PEARL RIVER HYDRAULIC RES INST OF PEARL RIVER WATER RESOURCES COMMISSION +1
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

However, in natural river water ecosystems, there are generally dozens or even hundreds of fish species that form communities. Various fishes have different migration periods and adapt to different flow velocities in each migration period. Therefore, the traditional fishway design has great advantages. Large limitations lead to a single species of fish, which cannot maintain species diversity and ecological balance

Method used

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  • Ecological fish way with multi-flow-speed channels
  • Ecological fish way with multi-flow-speed channels
  • Ecological fish way with multi-flow-speed channels

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Embodiment Construction

[0023] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0024] Figure 1 to Figure 4 It shows an ecological fishway with multi-stage flow velocity channels in the present invention, which can meet the migration needs of various fish in the river fish ecological community and improve the fish passing effect of the fishway.

[0025] figure 1 It is a schematic top view of an ecological fishway in an embodiment of the present invention. figure 2 It is a schematic top view of the multi-stage flow velocity channel of the ecological fishway in an embodiment of the present invention. image 3 It is a schematic top view of the multi-stage flow velocity channel of the ecological fishway in another embodiment of the present invention. Figure 4 It is a schematic top view of the mul...

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Abstract

The invention discloses an ecological fish way with multi-flow-speed channels. The ecological fish way comprises a fishpond, the low-flow-speed fish passing channel, the medium-flow-speed fish passing channel and the high-flow-speed fish passing channel, wherein the low-flow-speed fish passing channel, the medium-flow-speed fish passing channel and the high-flow-speed fish passing channel are all formed in the fishpond and extend in the direction consistent with the direction of water flow. According to the technical scheme, the ecological fish way can meet the running requirement of various fishes in ecological fish communities of rivers, the fish passing effect of the fish way is improved, and therefore the species of fishes passing through the fish way is increased, and the species diversity and the ecological balance can be maintained.

Description

technical field [0001] The invention relates to the technical field of dam protection for migratory fish, in particular to an ecological fishway with multi-stage flow velocity channels. Background technique [0002] Fishway is an extremely important part of modern water conservancy projects involving "harmonious coexistence between engineering and nature". Resources, water purification, maintenance of species diversity and ecological balance are all of great significance. [0003] At present, there are many types of fishways, mainly including technical fishways and ecological fishways such as pool-type fishways, baffle-type fishways (Daniel fishways), vertical-slotted fishways, but no matter what type of fishway it is, Its designs are all aimed at a specific fish object, such as fish with high economic value, such as salmon, trout, etc., or some rare and unique fish, such as Chinese sturgeon. However, in natural river water ecosystems, there are generally dozens or even hu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/08
CPCY02A40/60
Inventor 何贞俊李勇陈松滨王俊红张金明
Owner PEARL RIVER HYDRAULIC RES INST OF PEARL RIVER WATER RESOURCES COMMISSION
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