CN209797592U - Composite fish reef system for recovering aquatic plants in algae-type lake - Google Patents
Composite fish reef system for recovering aquatic plants in algae-type lake Download PDFInfo
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- CN209797592U CN209797592U CN201920306531.1U CN201920306531U CN209797592U CN 209797592 U CN209797592 U CN 209797592U CN 201920306531 U CN201920306531 U CN 201920306531U CN 209797592 U CN209797592 U CN 209797592U
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Abstract
the utility model relates to a compound fish reef system for recovering algae type lake aquatic plants, which comprises a plurality of compound artificial fish reefs sinking into the bottom of a lake, wherein the compound artificial fish reefs comprise a pasture and water planting tray and a plurality of artificial fish reef plates from top to bottom, and the multilayer structures are supported by timber piles; the material of artificial fish reef panel is the environmental protection material of high porosity and high water permeability. The utility model has simple facilities and simple process, and can effectively recover the algae type lake aquatic plants, especially the submerged plants; the physical method is utilized to increase the suitable survival area of the aquatic weeds, improve the survival rate of the aquatic weeds and effectively purify the water quality; the submerged plants are lifted to a light-transmitting area suitable for survival by utilizing the height of the fish reef, so that the quantity of aquatic weeds in the algae-type lake is increased, the fishery resource proliferation is realized, and multiple purposes are achieved.
Description
Technical Field
The utility model relates to a to lake ecological environment's recovery system, particularly, be a compound fish reef system that resumes algae type lake aquatic plant.
Background
in recent 20 years, the problem of water environment of shallow lakes in many areas of China is more and more serious, large aquatic plants, particularly submerged plants, of many lakes gradually die, the grass type clear water state is changed into the algae type turbid water state, the transparency of the water body is reduced, the eutrophication degree is increased, and microalgae burst to seriously affect the water quality and the landscape. The aquatic weeds have a good promoting effect on the material circulation of lakes, and can effectively improve the water quality and maintain the biodiversity. The aquatic weeds are used as primary producers, directly or indirectly provide food bases for the aquatic animals, and also provide spawning and inhabiting places for the aquatic animals; the aquatic weeds also provide oxygen for underwater microorganisms, promote the metabolic degradation activity of the underwater microorganisms and reduce the release of bottom mud nutritive salt caused by water body disturbance; the aquatic weeds and the algae compete for nutrients and illumination, the propagation of the algae can be well inhibited, the transparency is increased, the good transparency provides conditions for the further growth of the aquatic weeds, and the aquatic weeds and the transparency mutually promote to form a virtuous cycle, so that the lake is maintained in a healthy 'steady state'.
The recovery of the submerged plants is an effective way for the ecological management of algae-type lakes, but some lakes are relatively deep, so that the light transmittance of a water body is poor, the illumination is blocked, the submerged plants cannot grow, the aquatic plants are difficult to recover once the aquatic plants disappear, and fishes, shrimps, crabs and shellfish inhabiting the aquatic plants are rapidly reduced. Therefore, how to develop facilities and methods for recovering aquatic plants in the algae-type lake aiming at the current situations of water eutrophication of water areas in the algae-type lake and fishery resource decline is a technical problem to be solved in the field.
SUMMERY OF THE UTILITY MODEL
the utility model aims at providing a compound fish reef system utilizes the fish reef to provide suitable survival reproduction place for fish, when resumeing fish population structure, can also utilize the part on fish reef top layer, cultivates the submerged plant, reduces the distance of submerged plant apart from the surface of water, improves the survival rate of pasture and water, effectively purifies quality of water, solves traditional building material's artifical fish reef simultaneously and blocks the difficult problem of lakebed water-soil interface ecological chain.
The utility model adopts the following technical proposal:
A composite fish reef system for recovering aquatic plants in algae-type lakes comprises a plurality of composite artificial fish reefs sinking into the bottom of a lake, wherein each composite artificial fish reef comprises a multi-layer structure composed of a waterweed planting tray 3 and a plurality of artificial fish reef plates 1 from top to bottom, and the multi-layer structure is supported by wood piles 2; the material of the artificial fish reef plate 1 is an environment-friendly material with high porosity and high water permeability.
Furthermore, the material of the artificial fish reef plate 1 is plant ash containing lignite.
Furthermore, the periphery of the aquatic plant planting tray 3 is provided with an upper edge.
Furthermore, the area of each layer of the multilayer structure is gradually increased from top to bottom.
Furthermore, holes for fishes to swim are formed in the artificial fish reef plate 1.
Further, tray 3, artificial fish reef panel 1 are all the rectangle shape for pasture and water planting, stake 2 is for standing vertically in the middle part of compound artificial fish reef.
The construction method of the composite fish reef system comprises the steps of selecting an algae type area with a set area in a lake water area, putting 15000 composite artificial fish reefs in the deep water area of the area, wherein the average water depth of the area is 3.5 meters, the size of the composite artificial fish reefs is 2.0m multiplied by 1.6m, and the putting area proportion of the composite artificial fish reefs is about 18%.
The beneficial effects of the utility model reside in that:
1) The device is simple in facility and simple in process, and can effectively recover the aquatic plants, particularly the submerged plants, in the algae-type lake with low transparency;
2) Provides a suitable living and breeding place for the fishes, restores the fish population structure and has considerable ecological benefit;
3) The physical method is utilized to increase the suitable survival area of the aquatic weeds, improve the survival rate of the aquatic weeds and effectively purify the water quality;
4) The fish reef processed by adopting the environment-friendly material effectively solves the problem that the artificial fish reef made of the traditional building material blocks the ecological chain of the water-soil interface at the bottom of the lake; particularly, utilize environmental protection materials such as vegetation lime-ash to make artificial fish reef panel, have high porosity, high water permeability, resistant characteristics that erode, put in the lake can be connected into a whole with lakebed ecosystem, and porous artificial fish reef panel provides the attachment space for microorganism and benthos in the bed mud, forms little ecosystem, is favorable to the material circulation and the ecological relation at water-soil interface, has certain water purification effect.
5) The water grass coverage area in the area can be increased by more than 20 percent, and the water quality is obviously improved; meanwhile, the fish school structure is gradually recovered, and good ecological system balance is maintained.
6) And moving the bottom mud to the top end of the fish reef, planting submerged plants, and lifting the submerged plants to a light-transmitting area (2 meters) suitable for survival by using the height of the fish reef so as to increase the quantity of aquatic weeds in the algae-type lake and realize fishery resource proliferation.
Drawings
Fig. 1 is a schematic perspective view of the composite artificial fish reef in the composite fish reef system of the present invention.
Fig. 2 is a schematic elevation view of the composite fish reef system for recovering aquatic plants in algae-type lakes in accordance with the present invention.
In the figure, 1, an artificial fish reef plate, 2, a timber pile and 3, a water tank planting tray.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1-2, the composite fish reef system for recovering aquatic plants in algae-type lakes comprises a plurality of composite artificial fish reefs sinking into the bottom of a lake, wherein the composite artificial fish reefs comprise a multi-layer structure composed of a waterweed planting tray 3 and a plurality of artificial fish reef plates 1 from top to bottom, and the multi-layer structure is supported by timber piles 2.
In this embodiment, the material of the artificial fish reef plate 1 is an environmentally friendly material with high porosity and high water permeability.
In this embodiment, the material of the artificial fish reef plate 1 is plant ash containing lignite.
In this embodiment, referring to fig. 1, the aquatic plant growing tray 3 has an upper edge around it.
In this embodiment, referring to fig. 1, the layers of the multilayer structure gradually increase in area from top to bottom.
In this embodiment, referring to fig. 1, the artificial fish reef plate 1 has holes for fish to swim through.
in this embodiment, referring to fig. 1, the aquatic plant growing tray 3 and the artificial fish reef plate 1 are both rectangular, and the stake 2 is a piece erected in the middle of the composite artificial fish reef.
By way of example, the construction method of the composite fish reef system is shown in fig. 2, and a 500 mu algal lake area is selected from the white ocean lake, the area has an average water depth of 3.5 m, no waterweed exists, and the water quality is seriously deteriorated. 15000 composite artificial reefs are put in the deep water area of the area, the size of the reefs is 2.0m multiplied by 1.6m, and the putting area proportion of the artificial reefs is about 18%. The scheme can improve the water grass coverage area in the area by more than 20 percent, obviously improve the water quality, gradually recover the fish school structure and maintain good ecological system balance.
The recovery of aquatic plants is an important means for treating the algae-type lake, but in a deep area with water depth more than 2 meters, submerged plants are difficult to survive because of no illumination. This scheme has designed a compound artificial fish reef, moves the sediment to the fish reef top and plants the submerged plant, utilizes fish reef self height to promote the submerged plant to the light zone that suitable survives (<2 meters) to increase the pasture and water quantity in algae type lake, and realize fishery resources proliferation. The artificial fish reef is put into the deep water area of the algae-type lake, so that the planting survival rate of submerged plants can be improved by 90%.
In addition, artificial fish reefs are an important means for the recovery and protection of fishery resources. At present, the traditional artificial fish reef is mainly made of concrete and steel plates, the water permeability is poor, the survival of aquatic animals, plants and microorganisms is not facilitated, the natural relation of a water-soil interface at the bottom of a lake can be blocked by directly putting the fish reef made of the material in the lake, and the risk of influencing the ecological chain of the whole lake exists. Therefore, this scheme utilizes environmental protection materials such as vegetation lime-ash to make artificial fish reef panel, has high porosity, high water permeability, resistant characteristics that erode, puts in the lake can be connected into a whole with lakebed ecosystem, and porous artificial fish reef panel provides the attachment space for microorganism and benthos in the bed mud, forms little ecosystem, is favorable to the material circulation and the ecological relation at water-soil interface, has certain water purification effect. The composite artificial fish reef is composed of plates and wood piles, is of a multilayer structure, provides habitat for fishes, and is beneficial to fishery resource proliferation.
In summary, the utility model provides a technical method for recovering submerged plants in an algae-type lake with deep water depth and poor light transmittance; provides a design and arrangement method of the multifunctional compound fish reef with the functions of breeding fishery resources, recovering living plants and the like; meanwhile, a system engineering construction process for realizing the functions is provided.
the above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and these changes or improvements should fall within the scope of the present invention.
Claims (6)
1. The utility model provides a resume compound fish reef system of algae type lake aquatic plant which characterized in that:
The artificial fish reef comprises a plurality of composite artificial fish reefs sinking into the lake bottom, wherein the composite artificial fish reefs comprise a multi-layer structure consisting of a waterweed planting tray (3) and a plurality of artificial fish reef plates (1) from top to bottom, and the multi-layer structure is supported by wood piles (2);
The artificial fish reef plate (1) is made of an environment-friendly material with high porosity and high water permeability.
2. The composite fish reef system for restoring algal type lake aquatic plants according to claim 1, wherein: the artificial fish reef plate (1) is made of plant ash containing lignite.
3. The composite fish reef system for restoring algal type lake aquatic plants according to claim 1, wherein: the periphery of the aquatic plant planting tray (3) is provided with an upper edge.
4. The composite fish reef system for restoring algal type lake aquatic plants according to claim 1, wherein: the area of each layer of the multilayer structure is gradually increased from top to bottom.
5. The composite fish reef system for restoring algal type lake aquatic plants according to claim 1, wherein: holes for fishes to perch and swim on the artificial fish reef plate (1).
6. The composite fish reef system for restoring algal type lake aquatic plants according to claim 1, wherein: tray (3), artificial fish reef panel (1) are all the rectangle shape for pasture and water planting, stake (2) are for standing vertically in the middle part of compound artificial fish reef.
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| CN201920306531.1U CN209797592U (en) | 2019-03-12 | 2019-03-12 | Composite fish reef system for recovering aquatic plants in algae-type lake |
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| CN201920306531.1U CN209797592U (en) | 2019-03-12 | 2019-03-12 | Composite fish reef system for recovering aquatic plants in algae-type lake |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299564A (en) * | 2020-10-14 | 2021-02-02 | 北京远浪潮生态建设有限公司 | Method for purifying black and odorous water body water quality of river channel |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299564A (en) * | 2020-10-14 | 2021-02-02 | 北京远浪潮生态建设有限公司 | Method for purifying black and odorous water body water quality of river channel |
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