CN114481940A - Ecological restoration system for flood discharge river channel in semiarid region - Google Patents
Ecological restoration system for flood discharge river channel in semiarid region Download PDFInfo
- Publication number
- CN114481940A CN114481940A CN202210034451.1A CN202210034451A CN114481940A CN 114481940 A CN114481940 A CN 114481940A CN 202210034451 A CN202210034451 A CN 202210034451A CN 114481940 A CN114481940 A CN 114481940A
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- China
- Prior art keywords
- ecological
- river channel
- flood
- flood discharge
- rainwater
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/103—Naturals or landscape retention bodies, e.g. ponds
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/007—Contaminated open waterways, rivers, lakes or ponds
Abstract
The invention discloses a flood discharge river channel ecological restoration system in a semiarid region, belonging to the technical field of river channel ecological restoration, and comprising a step river channel, a plurality of concave green lands and a plurality of ecological water storage tanks, wherein the plurality of concave green lands are distributed on two sides of the step river channel, and the plurality of ecological water storage tanks are distributed on two sides of the step river channel; according to the invention, when the rainfall is large, the runoff flow velocity of rainwater is reduced by using the filtering vegetation, the rainwater is accumulated in the groove, the purifying vegetation primarily purifies the accumulated rainwater, the collected rainwater is conveyed to the ecological reservoir through the pipeline, the rainwater is further purified by filtering algae in the ecological reservoir, the collected and purified rainwater can be discharged into the step river channel through the drain pipe when no rainfall exists, the water flow of the step river channel is supplemented, and the problem of poor landscape performance caused by the fact that no water flow exists in the river channel in semiarid regions when the rainfall is small is solved.
Description
Technical Field
The invention belongs to the technical field of river ecological restoration, and particularly relates to a flood discharge river ecological restoration system in a semiarid region.
Background
China has extensive semi-arid regions that, due to climate, form many seasonal flood discharge channels that dry out for long periods of time. In addition, as water resources are depleted and the number of disastrous climates increases, more and more rivers exhibit the characteristics of flood discharge rivers. A large amount of uncoordinated phenomena exist in flood discharge riverways, and the phenomena become important targets for urban landscape reconstruction in recent years.
At present, the domestic treatment scheme aiming at drought and flood rush turning of the riverway in the semiarid region mainly comprises a whole river backwater type riverway design technology and a stream step type riverway design technology.
The design technology of the full-river damming type river channel is that a plurality of rubber dams are built on the river channel according to the longitudinal section gradient of the river channel, the technology has no earth excavation, wide water surface, better visual sensation, convenient management of water landscape buildings and no influence on flood discharge in a flood period; but is not suitable for areas with larger river channel specific fall, submerges ecological forests of original river channels and beaches, has larger water demand, is crossed with river-following intercepting main pipes, is inconvenient to construct, has less rest and entertainment areas for tourists, is not easy to arrange water landscape and has higher construction cost.
The stream stepped river channel design technology can achieve the effects of increasing the reoxygenation capacity of the water body and increasing the landscape effect by arranging artificial fall. And (4) recovering the snake-shaped river channel according to the terrain, and arranging a shoal and a deep groove. The technology is suitable for areas with larger river channel specific drop, has larger water landscape arrangement space, does not intersect with the main river closure pipe along the river, has convenient construction and smaller water consumption, does not need to submerge the ecological forest of the original river channel beach land, and has less investment; however, the main tank needs to be excavated manually, so that the earth volume is large, the water surface area is small, and the water landscape is greatly damaged after the flood.
Disclosure of Invention
The invention aims to: the problem of poor ecological landscape caused by no water flow in the river channel is solved; the ecological restoration system for the flood discharge riverway in the semi-arid region aims at solving the problems that flood disasters are easy to occur when rainfall is large in the semi-arid region and the riverway is often dry when no rainfall exists.
In order to achieve the purpose, the invention adopts the following technical scheme: the flood discharge river channel ecological restoration system for the semiarid region comprises a step river channel, a plurality of sunken green lands and a plurality of ecological water storage tanks, wherein the sunken green lands are distributed on two sides of the step river channel, the ecological water storage tanks are communicated with the step river channel, the sunken green lands are communicated with the ecological water storage tanks through pipelines, and one ecological water storage tank at least corresponds to one sunken green land.
As a further description of the above technical solution:
the step river channel comprises a riverbed, river banks and river floodbeaches, wherein a slope surface formed between the riverbed and the river banks is obliquely arranged, the river floodbeaches are arranged on the riverbed, and river channels are arranged on the river floodbeaches.
As a further description of the above technical solution:
the slope is arranged in a step shape.
As a further description of the above technical solution:
and green belts are arranged on the river banks.
As a further description of the above technical solution:
hydrophilic green plants are arranged on the flood plain.
As a further description of the above technical solution:
the recessed green land comprises a groove, a stone layer, filtering vegetation and purifying vegetation, wherein the stone layer and the filtering vegetation are all arranged in the groove, the stone layer is located at the bottom of the groove, the filtering vegetation is located around the stone layer, and the purifying vegetation is planted on the stone layer.
As a further description of the above technical solution:
the step river channel is communicated with the ecological reservoir through a drain pipe.
As a further description of the above technical solution:
and the ecological reservoir is internally provided with filtered algae.
In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:
1. according to the invention, through arranging a plurality of concave greenbelts around the step river channel and building an ecological reservoir, when the rainfall is large, runoff rainwater is recovered by using methods such as a grass planting ditch, namely, the runoff flow rate of rainwater is reduced by using filtering vegetation, a part of impurity dust can be filtered, the rainwater is accumulated in the ditch, the collected rainwater is primarily purified by using the purifying vegetation, the collected rainwater is conveyed to the ecological reservoir through a pipeline, the rainwater is further purified by filtering algae in the ecological reservoir, the collected and purified rainwater can be discharged into the step river channel through a drain pipe when no rainfall exists, the water flow of the step river channel is supplemented, and the problem of poor landscape caused by the fact that no water flow exists in the river channel in the semiarid region when the rainfall is small is solved.
2. According to the invention, by adopting the slope design which is obliquely arranged in a step shape, the step river channel can adapt to various water volume changes, a narrow river channel on a flood plain at the bottom of a river bed forms a water landscape with a small amount of water in a dry period, hydrophilic green plants are arranged on the flood plain, the landscape is good, the step river channel is integrally used for flood running and is compatible with drought and waterlogging in a flood season, green belt covering is carried out on two sides of the step river channel, the green belt and a river bank are integrated into a whole, the range of the green belt is expanded, the hydrophilicity of the landscape of the river channel can be realized, and the problems that the rainfall disaster easily occurs when the rainfall amount is large in a semiarid area and the river channel is often dry when the rainfall amount is not large are solved.
Drawings
Fig. 1 is a schematic overall structure diagram of an ecological restoration system of a flood discharge river in a semiarid region.
Fig. 2 is a first cross-sectional view of an ecological restoration system of a flood discharge river in a semiarid region.
Fig. 3 is a second cross-sectional view of an ecological restoration system of a flood discharge river in a semiarid region.
Illustration of the drawings:
1. a step river channel; 11. a riverbed; 12. river banks; 13. flood beaches; 2. a recessed greenery; 21. a trench; 22. laying stones; 23. filtering the vegetation; 24. purifying vegetation; 3. an ecological water reservoir; 4. a pipeline; 5. A slope surface; 6. a river channel; 7. green belts; 8. hydrophilic green plants; 9. a drain pipe; 10. filtering the algae.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. In the description of the embodiments of the present invention, it should be noted that the terms "upper", "inner", and the like refer to orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when the products of the present invention are used, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-3, the present invention provides a technical solution: the flood discharge river channel ecological restoration system for the semiarid region comprises a step river channel 1, a plurality of sunken green lands 2 and a plurality of ecological water storage tanks 3, wherein the sunken green lands 2 are distributed on two sides of the step river channel 1, the ecological water storage tanks 3 are communicated with the step river channel 1, the sunken green lands 2 are communicated with the ecological water storage tanks 3 through pipelines 4, and one ecological water storage tank 3 at least corresponds to one sunken green land 2;
the step riverway 1 comprises a riverbed 11, a riverbank 12 and a river flood plain 13, wherein a slope 5 formed between the riverbed 11 and the riverbank 12 is arranged in an inclined manner, the river flood plain 13 is arranged on the riverbed 11, and a river channel 6 is arranged on the river flood plain 13; the slope surface 5 is arranged in a ladder shape, so that the ladder riverway 1 can adapt to various water volume changes, a small amount of water forms a water landscape in a narrow river channel 6 on a flood plain 13 at the bottom of a riverbed 11 in a dry season, the ladder riverway 1 is integrally used for flood running in a flood season and is compatible with drought and flood, and the problems that flood disasters are easy to occur when the rainfall amount is large in a semiarid area and the riverway is often dry when no rainfall exists are solved;
the river bank 12 is provided with the green belts 7, the green belts 7 are covered on two sides of the stepped river 1, the green belts 7 and the river bank 12 are integrated into a whole, the range of the green belts is expanded, and the hydrophilicity of the river landscape can be realized;
the hydrophilic green plants 8 are arranged on the flood plain 13, so that the landscape is good;
the sunken green land 2 comprises a groove 21, a stone layer 22, filtering vegetation 23 and purifying vegetation 24, wherein the stone layer 22 and the filtering vegetation 23 are all arranged in the groove 21, the stone layer 22 is positioned at the bottom of the groove 21, the filtering vegetation 23 is positioned around the stone layer 22, the purifying vegetation 24 is arranged on the stone layer 22, when the rainfall is large, runoff rainwater is recovered by methods such as a grass planting ditch, namely, the runoff flow rate of the rainwater is reduced by utilizing the filtering vegetation 23, and a part of impurity dust can be filtered, the rainwater is accumulated in the groove 21, the purifying vegetation 24 preliminarily purifies the accumulated rainwater, the collected rainwater is conveyed to the ecological reservoir 3 through a pipeline 9, the collected and purified rainwater can be discharged into a step river channel 1 through a drain pipe 9 when no rainfall occurs, so as to supplement the water flow of the river channel 1, the problem of poor landscape caused by the fact that the river channel often has no water flow when the rainfall of the river channel in the semiarid region is low is solved;
the step river channel 1 is communicated with the ecological reservoir 3 through a drain pipe 9, so that water in the ecological reservoir 3 is conveniently drained into the step river channel;
the ecological reservoir 3 is internally provided with filtered algae 10, and rainwater is further purified by the filtered algae 10 in the ecological reservoir 3.
The working principle is as follows: firstly, when the rainfall is heavy, the runoff rainwater is recovered by methods such as grass planting ditches, namely the filtration vegetation 23 is utilized to reduce the runoff flow rate of the rainwater, and part of impurity dust can be filtered, the rainwater is accumulated in the groove 21, the purification vegetation 24 is used for primarily purifying the accumulated rainwater, the collected rainwater is conveyed to the ecological reservoir 3 through the pipeline 9, the rainwater is further purified by the filtration algae 10 in the ecological reservoir 3, secondly, when the rainfall is heavy, the slope 5 which is obliquely arranged in a step shape is designed, so that the step river channel 1 can adapt to various water quantity changes, the step river channel 1 is integrally used for flood in the rich water period, then, the narrower river channel 6 on the river flood beach 13 at the bottom of the river bed 11 forms a water body landscape with a small amount of water, the hydrophilic green plants 8 are arranged on the river flood beach 13, the landscape is good, and finally, the collected and purified rainwater can be discharged into the step river channel 1 through the drain pipe 9 when no rainfall occurs, the water flow of the step river channel 1 is supplemented, and the problem of poor landscape caused by the fact that no water flow exists in the river channel frequently when the rainfall of the river channel in the semiarid region is low is solved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. The utility model provides an ecological restorer system of flood discharge river course in semiarid area which characterized in that: including step river course (1), many places recessed formula greenery patches (2) and many places ecological cistern (3), many places recessed formula greenery patches (2) distribute in the both sides of step river course (1), many places ecological cistern (3) intercommunication step river course (1), recessed formula greenery patches (2) pass through pipeline (4) with ecological cistern (3) intercommunication, one place ecological cistern (3) correspond one place at least concave formula greenery patches (2).
2. The ecological restoration system for flood discharge riverways in semiarid regions according to claim 1, wherein the stepped riverway (1) comprises a riverbed (11), a riverbank (12) and a flood bank (13), a slope (5) formed between the riverbed (11) and the riverbank (12) is arranged in an inclined manner, the flood bank (13) is arranged on the riverbed (11), and a river channel (6) is arranged on the flood bank (13).
3. The ecological restoration system for flood discharge riverways in semiarid regions according to claim 2, wherein the slope (5) is arranged in a step shape.
4. The ecological restoration system for flood discharge riverways in semiarid regions according to claim 2, wherein a green belt (7) is arranged on the riverbank (12).
5. The ecological restoration system for flood discharge riverways in semiarid regions according to claim 2, wherein the flood plain (13) is provided with hydrophilic green plants (8).
6. The semi-arid region flood discharge river channel ecological restoration system according to claim 1, wherein the recessed green land (2) comprises a groove (21), a stone layer (22), filtering vegetation (23) and purifying vegetation (24), the stone layer (22) and the filtering vegetation (23) are both arranged in the groove (21), the stone layer (22) is located at the bottom of the groove (21), the filtering vegetation (23) is located around the stone layer (22), and the purifying vegetation (24) is planted on the stone layer (22).
7. The ecological restoration system for flood discharge riverways in semiarid regions according to claim 1, wherein the step riverway (1) is communicated with the ecological reservoir (3) through a drainage pipe (9).
8. The ecological restoration system for flood discharge riverways in semiarid regions according to claim 1, wherein filtered algae (10) are arranged in the ecological reservoir (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210034451.1A CN114481940A (en) | 2022-01-12 | 2022-01-12 | Ecological restoration system for flood discharge river channel in semiarid region |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210034451.1A CN114481940A (en) | 2022-01-12 | 2022-01-12 | Ecological restoration system for flood discharge river channel in semiarid region |
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| CN114481940A true CN114481940A (en) | 2022-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210034451.1A Pending CN114481940A (en) | 2022-01-12 | 2022-01-12 | Ecological restoration system for flood discharge river channel in semiarid region |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142382A (en) * | 2022-07-29 | 2022-10-04 | 重庆交通大学 | Landscape water supplementing system and method applied to source-head type river channel |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385819A (en) * | 2018-03-21 | 2018-08-10 | 桑德生态科技有限公司 | The river side for taking into account regulate and store processing and landscape function strengthens the ecosystem |
| CN109385975A (en) * | 2018-09-03 | 2019-02-26 | 深圳地大水务工程有限公司 | A kind of compound river channel system |
| CN111335447A (en) * | 2020-03-05 | 2020-06-26 | 深圳市华胜建设工程有限公司 | Controllable slow flow sewage interception circulating module system based on sponge city construction |
| WO2021174722A1 (en) * | 2020-03-04 | 2021-09-10 | 湖南恒凯环保科技投资有限公司 | Regulation, storage, and purification system and method for controlling rain and sewage confluence and overflow pollution |
-
2022
- 2022-01-12 CN CN202210034451.1A patent/CN114481940A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108385819A (en) * | 2018-03-21 | 2018-08-10 | 桑德生态科技有限公司 | The river side for taking into account regulate and store processing and landscape function strengthens the ecosystem |
| CN109385975A (en) * | 2018-09-03 | 2019-02-26 | 深圳地大水务工程有限公司 | A kind of compound river channel system |
| WO2021174722A1 (en) * | 2020-03-04 | 2021-09-10 | 湖南恒凯环保科技投资有限公司 | Regulation, storage, and purification system and method for controlling rain and sewage confluence and overflow pollution |
| CN111335447A (en) * | 2020-03-05 | 2020-06-26 | 深圳市华胜建设工程有限公司 | Controllable slow flow sewage interception circulating module system based on sponge city construction |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115142382A (en) * | 2022-07-29 | 2022-10-04 | 重庆交通大学 | Landscape water supplementing system and method applied to source-head type river channel |
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