CN105668802B - The river corridor restoration system and its construction method in a kind of band plant field - Google Patents
The river corridor restoration system and its construction method in a kind of band plant field Download PDFInfo
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- CN105668802B CN105668802B CN201610253600.8A CN201610253600A CN105668802B CN 105668802 B CN105668802 B CN 105668802B CN 201610253600 A CN201610253600 A CN 201610253600A CN 105668802 B CN105668802 B CN 105668802B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
Abstract
The invention discloses the river corridor restoration system and its construction method in a kind of band plant field.The plant field for being used for river corridor restoration includes river, and the centre in the river is provided with the diversion trench identical with water (flow) direction, for flood passage；The region on the both sides of the diversion trench to corresponding two riverbanks has respectively constituted two planting bands for being used to purify water, and kind is implanted with submerged plant on the planting band；The bottom surface of the planting band is higher than the bottom surface of the diversion trench, and less than the lowest point on riverbank.Its construction method is first to carry out planning and designing for river to be onstructed, then reduces water level, excavates diversion trench, and side slope is built with the soil dug out；Then biological refuge area, the ecological region planting submerged plant finally surrounded in biological refuge area and side slope are disposed.The present invention solves the problems, such as that the river ecosystem restoration of flood passage function is difficult, while also solves the construction problem of city river landscape.
Description
Technical field
The invention belongs to water ecology repair field, and in particular to a kind of river corridor restoration system in band plant field and its
Construction method.
Background technology
With expanding economy, the pollution in river is on the rise, and causes river habitat to be subject to heavy damage, water plant,
Animal, microbe species fall sharply, and river ecosystem vicious circle, polluted water body cannot purify.Issued from " ten, water "
Since, each provinces and cities have put into effect the improvement policy of Hu Ku, river water contamination in succession.And the renovation in river is different from Hu Ku,
The water body of mobility requires the aquatile such as submerged plant in river ecosystem that there is more preferable anchoring capability could obtain effect
Fruit.In recent years, more and more scholar are groped and have been attempted to River ecological restoration: techniques both at home and abroad, by artificially creating
Improvement of terms aquatile habitat, it is expected to recover the species diversity of river ecosystem, strengthens stream self-purification ability.
River ecosystem species diversity is improved, not only with important ecological significance, stream self-purification can also be improved
Ability.And the mistake for having the river of flood passage function, it is larger that the difficult point of its restoration of the ecosystem is that flood has the ecosystem
Destructive power, and the research currently for this kind of river has more been laid stress in the prevention to flood, rather than to river
Restoration of the ecosystem.
However, also there is the demand of restoration of the ecosystem in the river for having flood passage function at present, how while flood passage function is kept,
Improve a great problem that purification of water quality ability is water pollution regulation.Further, since there is more such river to flow through city, so
In the repair process in river, it is also desirable to consider the construction problem of urban landscape.
The content of the invention
For deficiencies of the prior art, the present invention provide a kind of band plant field river corridor restoration system and
Its construction method, it is intended to solve the problems, such as that the restoration of the ecosystem in the river of flood passage function is difficult, while solve city river scape
The problem of construction of sight.
To achieve these goals, the technical solution adopted by the present invention is as follows：
A kind of river corridor restoration system in band plant field, including river, it is characterised in that setting among the river
There is the diversion trench identical with water (flow) direction, for flood passage；Distinguish in the region on the both sides of the diversion trench to corresponding two riverbanks
Two planting bands for being used to purify water are constituted, kind is implanted with submerged plant on the planting band；The plant
The bottom surface of growth belt is higher than the bottom surface of the diversion trench, and less than the lowest point on riverbank.
Further, the intersection of the planting band and the diversion trench is provided with the bottom higher than the planting band
The side slope in face.
Further, it is arranged at intervals with the planting band and vertical with water (flow) direction is used to separate on planting band
For the zinc-plated gabion box of small planting unit, zinc-plated gabion box inside is used to slow down water velocity and protection filled with stone
Aquatile is so as to form biological refuge area；The region that adjacent two zinc-plated gabion box and side slope surround forms plant field, described heavy
Water plant subregion is planted in different plant fields.
Further, the two neighboring biological refuge area in water (flow) direction at intervals of 80 ~ 100m.
Further, the height of the biological refuge area is 60cm, which is
60cm。
Further, the side slope is higher than planting band more than bottom surface 60cm.
Further, the width in the river is not less than 20m.
Further, the width of the diversion trench is the 10% ~ 30% of the river width.
A kind of construction method of the river corridor restoration system in above-mentioned band plant field, it is characterised in that comprise the following steps：
1）The width of diversion trench, planting band is designed according to the width in river, depth.
2）Water level is adjusted, is allowed to be in low water level；Diversion trench is excavated, and utilizes the soil structure side slope dug out.
3）Riverbed is cleared up, stone is regathered and is put in gabion box, then gabion box is fixed in precalculated position in the design, is made
The biological refuge area of formation.
4）Finally planting submerged plant is planted in the plant field surrounded by side slope and biological refuge area.
Compared with prior art, the present invention has the advantages that：
1st, the present invention uses the building mode of diversion trench combination planting band, and planting submerged plant is not planted in diversion trench, protects
Flood passage function is demonstrate,proved, plant field is advantageously formed in planting band and carrys out purifying water body.
The 2nd, biological refuge area is set, both facilitated construction, and can also slow down the speed of current, punching is created for submerged plant
The small river ecological environment of brushing force degree.Material therefor has zinc-plated gabion box, stone and submerged plant etc., is nonpollution material,
Make engineering construction ecological, environmental protective.
3rd, the present invention construct pore structure that biological refuge area formed and return guide trough into profundal zone, be different in water
Biology provides diversified environment, thus abundant bio-diversity, and then natural self-purification of water environment is formed, be conducive to
Sustainable development.
4th, the river corridor restoration system in band plant field provided by the invention is not consumed using biology and the operation of water motility
The energy, energy conservation and environmental protection；Meanwhile the difficulty of construction of structure is smaller, operation expense is low, is conducive to promote the use of.
5th, the river corridor restoration system in band plant field provided by the invention can plant a variety of submerged plants, easy to build not
Same urban landscape.
Brief description of the drawings
Fig. 1 is the structure diagram in the plant field for river corridor restoration of the present invention；
Fig. 2 is the sectional view along A-A of Fig. 1；
Fig. 3 is the B-B direction sectional view of Fig. 1.
In attached drawing：1-diversion trench；2-planting band；3-side slope；4-biology refuge area.
Embodiment
The present invention is described in further detail with reference to specific embodiment.
First, a kind of river corridor restoration system in band plant field, including river, the centre in the river is provided with and current
The identical diversion trench 1 in direction, for flood passage；The region on 1 both sides of diversion trench to corresponding two riverbanks has respectively constituted two
A planting band 2 for purifying water, kind is implanted with submerged plant on the planting band 2.The planting band 2
Bottom surface be higher than the diversion trench 1 bottom surface, and less than riverbank lowest point.It can so ensure that flood is drained along diversion trench 1,
Reduce the impact to submerged plant；It in turn ensure that the root of submerged plant is soaked in water all the time at the same time, to realize that submerged plant is net
The effect of water body.It is common heavy that submerged plant can be selected from eel grass, hydrilla verticillata, Potamogeton maackianu, water caltrop, p.malaianus etc.
Use plant.
As an optimization, the intersection of the planting band 2 and the diversion trench 1 is provided with higher than the planting band
The side slope 3 of 2 bottom surface.The advantages of so designing has two：First, it is certain to ensure that planting band 2 has in place of the present invention is built
Water, so that submerged plant survives；Submerged plant is impacted second, the faster current of flow velocity in diversion trench 1 can be reduced, together
When avoid its influence to low speed water in planting band 2, ensure purifying water effect.
As an optimization, vertical with water (flow) direction be used for planting band is arranged at intervals with the planting band 2
Be divided into the zinc-plated gabion box of small planting unit, inside zinc-plated gabion box filled with stone be used to slowing down water velocity and
Protection aquatile is so as to form biological refuge area 4；The region that adjacent two zinc-plated gabion box and side slope 3 surround forms plant field,
The submerged plant subregion is planted in different plant fields.Biological refuge area 4 is provided with three big advantages：One is can be with
Impact failure of the high-velocity flow to submerged plant when reducing flood passage；Secondly provide breeding and the place taken refuge for aquatic animal；
The third is the matrix that can be grown as aquatic microorganisms, advantageously forms the biomembrane with water purification function.
As an optimization, the two neighboring biological refuge area 4 in water (flow) direction at intervals of 80 ~ 100m.Appropriate
Interval, makes the water in planting band 2 and submerged plant amount keep appropriate, ensures that water body self-purification ability is in optimal balance
State.And it then can effectively prevent that biological refuge area 4 is collapsed caused by corrosion using zinc-plated gabion box.
As an optimization, the height of the biological refuge area 4 is 60cm, not only ensure that the effect for slowing down water impact, but also
The proper flow of current is not interfered with.The thickness of the biology refuge area 4 in water (flow) direction is 60cm, both ensure that shock proof
Ability, and save material, reduce cost.
As an optimization, the side slope 3 is higher than more than the 2 bottom surface 60cm of planting band.Primarily to for
The plant field structure of river corridor restoration ensures that planting band 2 has certain water initial stage, so that submerged plant survives, fits
When height neither waste of materials, and effect can be reached.
As an optimization, the width in the river is not less than 20m.The width in river determines the plant for river corridor restoration
The feasibility in thing field, the narrow space that can be built in river can be smaller, influences flood passage, can also influence water body treatment effect.
As an optimization, the width of the diversion trench 1 is the 10% ~ 30% of the river width.The width of diversion trench 1 will fit
When, it is wide water body to be made largely to flow away, do not reach the effect of purification, it is too narrow and flood passage can be influenced.
During long-term use, although side slope 3 is possible to cave in, diversion trench 1 is also possible to deposit and shoal.
But in submerged plant riotous growth, there is stronger Water run-off preventing, the effect of side slope 3 and diversion trench 1 also can be by
It is decrescence weak.
2nd, the construction method of the river corridor restoration system in above-mentioned band plant field, comprises the following steps：
1）The width of diversion trench 1, planting band 2 is designed according to the width in river, depth.
2）Water level is adjusted, is allowed to be in low water level；Diversion trench 1 is excavated, and utilizes the soil structure side slope 3 dug out.
3）Riverbed is cleared up, stone is regathered and is put in gabion box, then gabion box is fixed in precalculated position in the design, is made
The biological refuge area 4 of formation.
4）Finally planting submerged plant is planted in the plant field surrounded by side slope and biological refuge area.
After construction, water level is gradually brought to normal level, with the growth of submerged plant, construction section can be formed
The plant field suitable for river corridor restoration with water self-cleaning ability.
When it is implemented, usually to coordinate outlet sluice to construct, open a sluice gate and draw out some water first in downstream, water is in low water
Position.Diversion trench 1 is excavated with digging machine at this time, the soil heap dug out forms side slope 3, the width and depth of diversion trench 1 in 1 both sides of diversion trench
Degree is determined according to river width and water flow, most of water is flowed to downstream with diversion trench 1.Field is carried out to the riverbed exposed
Ground is cleared up, and determines the position that biological refuge area 4 is placed.Gabion box is put in order in the place planned to place, stone is collected and is put in stone
In cage net, gabion box is then fixed, stone is formed an entirety.In the plant that biological refuge area 4 and 1 side slope 3 of diversion trench are formed
Thing Tanaka plants planting submerged plant.
The above embodiment of the present invention is only example to illustrate the invention, and is not the implementation to the present invention
The restriction of mode.For those of ordinary skill in the field, other can also be made not on the basis of the above description
With the change and variation of form.Here all embodiments can not be exhaustive.It is every to belong to technical scheme
Row of the changes and variations that derived from still in protection scope of the present invention.
Claims (4)
1. a kind of river corridor restoration system in band plant field, including river, it is characterised in that the centre in the river is provided with
The diversion trench identical with water (flow) direction, for flood passage；Distinguish structure in the region on the both sides of the diversion trench to corresponding two riverbanks
Into two planting bands for purifying water, kind is implanted with submerged plant on the planting band；The plant species
The bottom surface for planting band is higher than the bottom surface of the diversion trench, and less than the lowest point on riverbank；The planting band and the diversion trench
Intersection be provided with the side slope of the bottom surface higher than the planting band；The side slope is higher than planting band bottom surface
More than 60cm；Be arranged at intervals with the planting band it is vertical with water (flow) direction be used to planting band being divided into it is small
The zinc-plated gabion box of planting unit, zinc-plated gabion box inside are used to slow down water velocity and the aquatic life of protection filled with stone
Thing is so as to form biological refuge area；The two neighboring biological refuge area in water (flow) direction at intervals of 80 ~ 100m；It is described
The height of biological refuge area be 60cm, which is 60cm；
The region that adjacent two zinc-plated gabion box and side slope surround forms plant field, and the submerged plant subregion is planted in different
In plant field.
2. the river corridor restoration system in band plant field according to claim 1, it is characterised in that the width in the river
Degree is not less than 20m.
3. the river corridor restoration system in band plant field according to claim 1, it is characterised in that the diversion trench
Width is the 10% ~ 30% of the river width.
A kind of 4. construction method of the river corridor restoration system as claimed in claim 1 with plant field, it is characterised in that bag
Include following steps：
1）The width of diversion trench, planting band is designed according to the width in river, depth；
2）Water level is adjusted, is allowed to be in low water level；Diversion trench is excavated, and utilizes the soil structure side slope dug out；
3）Riverbed is cleared up, stone is regathered and is put in gabion box, then gabion box is fixed in precalculated position in the design, is allowed to shape
Into biological refuge area；
4）Finally planting submerged plant is planted in the plant field surrounded by side slope and biological refuge area.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610253600.8A CN105668802B (en) | 2016-04-22 | 2016-04-22 | The river corridor restoration system and its construction method in a kind of band plant field |
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| CN201610253600.8A CN105668802B (en) | 2016-04-22 | 2016-04-22 | The river corridor restoration system and its construction method in a kind of band plant field |
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| CN105668802B true CN105668802B (en) | 2018-05-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106277343A (en) * | 2016-09-21 | 2017-01-04 | 湖南天泉生态草业工程有限公司 | A kind of artificial swamp advanced purification system |
| CN107217641A (en) * | 2017-08-03 | 2017-09-29 | 重庆市环境科学研究院 | River course deep ditch type submerged forest system and its construction method |
| CN109122271B (en) * | 2018-08-01 | 2020-08-11 | 中国水利水电科学研究院 | Adopt ecological remediation system of sand riverbed |
| CN114590902A (en) * | 2022-03-23 | 2022-06-07 | 重庆大方生态环境治理股份有限公司 | Fish and grass symbiotic ecological fishing pond and fishery culture sewage treatment method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219834A (en) * | 2008-01-22 | 2008-07-16 | 河海大学 | Method for shaping ecological decontaminating type combination stream channel wet land system |
| CN102146666A (en) * | 2011-02-16 | 2011-08-10 | 河海大学 | River waterfront multiplayer composite plant pollutant purification zone and construction method of river waterfront multiplayer composite plant pollutant purification zone |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101219834A (en) * | 2008-01-22 | 2008-07-16 | 河海大学 | Method for shaping ecological decontaminating type combination stream channel wet land system |
| CN102146666A (en) * | 2011-02-16 | 2011-08-10 | 河海大学 | River waterfront multiplayer composite plant pollutant purification zone and construction method of river waterfront multiplayer composite plant pollutant purification zone |
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Effective date of registration: 20200427 Address after: 402660 No.33, group 6, Jinpan village, Baizi Town, Tongnan District, Chongqing Patentee after: CHONGQING AQUATIC NET ECOLOGICAL AGRICULTURE DEVELOPMENT Co.,Ltd. Address before: 400010, No. 97, Zhongshan Road, Yuzhong District, Chongqing, 9-17 Patentee before: CHONGQING DAFANG ECOLOGICAL ENVIRONMENTAL GOVERNANCE Co.,Ltd. |