CN105544456A - Method for building green curtain suitable for steep slope type hydro-fluctuation belt and green curtain flotation devices - Google Patents
Method for building green curtain suitable for steep slope type hydro-fluctuation belt and green curtain flotation devices Download PDFInfo
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- CN105544456A CN105544456A CN201510975403.2A CN201510975403A CN105544456A CN 105544456 A CN105544456 A CN 105544456A CN 201510975403 A CN201510975403 A CN 201510975403A CN 105544456 A CN105544456 A CN 105544456A
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- green curtain
- water
- flotation gear
- ramping constraints
- falling zone
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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
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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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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2203/00—Apparatus and plants for the biological treatment of water, waste water or sewage
- C02F2203/006—Apparatus and plants for the biological treatment of water, waste water or sewage details of construction, e.g. specially adapted seals, modules, connections
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Biotechnology (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Botany (AREA)
- Biodiversity & Conservation Biology (AREA)
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- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Revetment (AREA)
Abstract
The invention discloses a method for building a green curtain suitable for a steep slope type hydro-fluctuation belt and green curtain flotation devices. The method includes the steps of planting climbing plant units resistant to water logging on a bank belt with large water-level fluctuation, fixing the flotation devices to the climbing plant units, utilizing biological ropes for connecting the flotation devices on the adjacent climbing plant units to be in a net shape, and the like. Each flotation device comprises multiple bamboo joint units connected in series and wave-attenuating cages connected to one end of the series of bamboo joint units, and the bamboo joint units and the wave-attenuating cages are connected through the biological ropes. The green building method and the flotation devices can flexibly deal with increasing and decreasing of the water level, not only can quickly afforest the hydro-fluctuation belt after the water level is decreased, but also can reduce the erosion effect of waves to the bank belt after the water level is increased; climbing plants forming a green curtain can also intercept non-point source pollution of the upstream of the bank belt, thereby reducing loads of pollutants in water.
Description
Technical field
The invention belongs to afforestation project field, be specifically related to a kind of green curtain construction process and the flotation gear thereof that are adapted to type falling zone, abrupt slope.
Background technology
Falling zone refers to the water body seasonal movement such as reservoir, rivers, lake, the alternation of wetting and drying area that the soil in linking area, land and water periodically floods and formed.Three Gorges Projects define maximum (the about 349km of area in the world
2), drop maximum (between 145-175m absolute elevation, vertical distance reaches 30m), contrary with natural river fluctuation season and have height landscape heterogeneity (half a year water body, half a year land, landform is various) falling zone.As the first ecological protective screen district between water body and land bank, the ecosystem health of falling zone is directly connected to reservoir area water quality safety, ecological safety and Regional Economic Sustainable Development.
Nature Ye Cheng flooded area, falling zone or buffer strip; because of long-term natural evolvement effect; now set up the stable ecosystem, its vegetation coverage is high, possess retain surface flow and carry pollutant, protect wild animals and plants, safeguard ecological diversity and the ecosystem service function such as aesthetic.
But, the method of operation of reservoir Artificial Regulation causes water level to fluctuate widely, flooding time is long, contrary with the natural water amount of increase rhythm and pace of moving things, falling zone vegetation very easily suffers interference and destroys, particularly steep in some gradients, the region of soil depletion, be not easy to set up phytobiocoenose after water-break within one period, form exposed falling zone, cause soil erosion further, unstable reservoir bank, geological disaster is frequent, pollution of area source aggravates, the multiple ecological environment problems such as view deterioration, thus threaten Reservoir Water Quality safety, ecology in reservoir area safety and Sustainable Socioeconomic Development.
At present, for city-building and landscape need, gentle slope type falling zone is because physical features is more slow, and soil matrix is excellent, and its greening can adopt comparatively soft revegetation.And for type falling zone, abrupt slope, then based on engineering hardening (comprising cement and reinforcement component and special constructing structure) measure, even if employing revegetation, because abrupt slope district soil depletion, level changing amplitude are large, change the characteristics such as frequent, still need to excavate planting area, pile the constructions such as base.The Chinese patent being 201010102730.4 as application number discloses " a kind of restoration method for damaged ecosystem in steep-slope area in water-level-fluctuating zone of reservoir ", namely this patent is by choosing dissimilar vegetation and carrying out excavation plantation to form the domatic recovery band of composite plant cover domatic, thus reduce surface flow and the soil erosion, improve soil fertility and character, make damaged ecosystem reparation.But just practice at present, there is some problem following in this kind of technology: the plant that (1) screens is not suitable for significantly SEA LEVEL VARIATION, causes secondary pollution on the contrary after dead plant of rotting enters water body; (2) need to carry out the mode such as digging up and filling in, plant construction plantation to regression zone land to transform, its essence is that the one of the opposite bank band ecosystem is destroyed.
River channel below dams is as the newborn ecosystem, and ecological environment frailty is responsive and change is violent, and plant climax evolution direction still belongs to unknown, and whether this engineered and Plant choosing is really applicable to the falling zone ecosystem, is also worth inquiring into.Although propose the restoration of the ecosystem theory of one " leavealone (nonintervention theoretical) " abroad, this theory is only suitable for the less area of mankind's activity, is unsuitable for cities and towns, reservoir area riverine and build, the falling zone that periphery is had a large population, ecological pressure is large.
Summary of the invention
In view of this, the object of the present invention is to provide and a kind ofly improve scenery and environment quality, to falling zone interference little and the green curtain construction process being adapted to type falling zone, abrupt slope of applying flexible and flotation gear thereof.
For achieving the above object, the invention provides following technical scheme: a kind of green curtain construction process being adapted to type falling zone, abrupt slope, mainly comprises the following steps:
(1) according to the territorial characteristics of reservoir area of Three Gorges, select the ramping constraints of resistance to water logging and carry out greenhouse cultivation;
(2) on each ramping constraints unit, flotation gear is fixed;
(3) select one section of bank band had compared with Large Water fluctuation, determine the year peak level at this bank band place, year lowest water level, stormy waves intensity and water quality situation, according to SEA LEVEL VARIATION situation determination ramping constraints unit planting location;
(4) plant along interval, Riparian Zone direction the ramping constraints unit that several secure flotation gear;
(5) biological rope is utilized to connect into latticed by the flotation gear on adjacent ramping constraints unit.
Further, the ramping constraints in described step (1) is at least kudzu ， Bai le, Cyclea racemosa Oliv, the one in chinaroot greenbrier.
Further, described ramping constraints unit is planted in 1 ~ 2 meter of on water level ceiling for accumulation according to water-level fluctuation Changing Pattern.
Further, described flotation gear is fixed on 1 ~ 1.5 meter of of more than ramping constraints unit root.
Further, the plantation spacing between described adjacent ramping constraints unit is 25 ~ 40 centimetres.
Further, described flotation gear is made up of ring and thin bamboo strips used for weaving.
A kind of flotation gear, comprise the ring monomer of several independent and connected bunchiness and be connected to the unrestrained cage that disappears of one end, described each ring monomer and disappearing between unrestrained cage is connected by biological rope, described ring monomer is cylindric, which is provided with self-locking band, the described unrestrained cage that disappears is made up of thin bamboo strips used for weaving, and its inside is filled with foam block.
Further, the distance between described adjacent ring monomer is 5 ~ 8 centimetres, and the length of each ring monomer is 45 ~ 55 centimetres, and diameter is less than 3 centimetres.
Further, described ring monomer is provided with groove.
Further, described self-locking band has two groups.
Beneficial effect of the present invention is:
1. green curtain simulation littoral zone self-sow marine alga is waved with seawater, and its building process does not only cause any destruction to place, can also promote clear-cutting forestland further;
2. the ramping constraints of resistance to water logging only swims on the water surface and does not enter water body, there is not dead problem of rotting, can not pollute water body, solves a falling zone greening difficult problem, has significant ecological environment benefit;
3. flotation gear adopts nature material to make, raw material is easy to get, cost is low, environmental friendliness, non-secondary pollution, almost nil to falling zone disturbance, for river, river, lake, storehouse, not easily growing plant rock abrupt slope and hardening bank band is all applicable, especially larger to water-level fluctuation bank band best results;
On the whole, this green curtain construction process and flotation gear can tackle fluctuation in stage flexibly, and fast greening is carried out in the falling zone can stepped back water, can reduce again the opposite bank band corrosion function of water wave after water rises; The green curtain swum on the water surface also can tackle bank band upstream pollution of area source, thus pollutant burden in abatement water body.
Accompanying drawing explanation
In order to make object of the present invention, technical scheme and beneficial effect clearly, the invention provides following accompanying drawing and being described:
Fig. 1 is schematic diagram of the present invention;
Fig. 2 is the structural representation (scheme one) of flotation gear;
Fig. 3 is the structural representation (scheme two) of flotation gear.
Detailed description of the invention
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
As shown in the figure, the green curtain construction process being adapted to type falling zone, abrupt slope in the present invention, mainly comprises the following steps:
(1) according to the territorial characteristics of reservoir area of Three Gorges, select the ramping constraints of resistance to water logging and carry out greenhouse cultivation, the ramping constraints of resistance to water logging can be kudzu, white le, Cyclea racemosa Oliv, one or more in chinaroot greenbrier.
(2) on each ramping constraints unit 1, fix flotation gear 2, utilize flotation gear 2 to make ramping constraints cover falling zone place.
(3) one section of bank band had compared with Large Water fluctuation is selected, determine the year peak level at this bank band place, year lowest water level, stormy waves intensity and water quality situation, according to SEA LEVEL VARIATION situation determination ramping constraints unit planting location, the principle that particular location can cover falling zone completely according to ramping constraints is selected; In the present embodiment, ramping constraints unit is planted in 1 ~ 2 meter of on water level ceiling for accumulation according to water-level fluctuation Changing Pattern.
(4) plant along interval, Riparian Zone direction the ramping constraints unit 1 that several secure flotation gear 2, plantation spacing controls between 25 ~ 40 centimetres, and this spacing can avoid the vegetative coverage that causes because spacing is excessive complete and affect plant growth because spacing is too small.
(5) biological rope 3 is utilized to connect into latticed by the flotation gear 2 on adjacent ramping constraints unit, 1 can be made between each ramping constraints unit mutually to pin down, both can better adapt to the fluctuation of water wave, reduce the erosion of its opposite bank band, the ability of its interception bank band upstream pollution of area source can have been strengthened again.
Concrete, described flotation gear 2 is fixed on 1 ~ 1.5 meter of of more than ramping constraints unit root.
As the further improvement of such scheme, described flotation gear 2 is made up of ring and thin bamboo strips used for weaving, and bamboo material is easy to get, cheap, and anticorrosive anti-aging, and buoyancy is large, sound construction, and the soil below covering or water body can not be made to be interfered.Certainly, flotation gear herein also can use other materials, as styrofoam conventional at present or air bag etc.
In the present invention, the ramping constraints of resistance to water logging is planted in place above the peak level of falling zone side by side and forms " green curtain ", alternately change according to land and water realizes different effects and effect: when water level is low, " green curtain " covers land, falling zone, realizes the fast greening of falling zone; During water level height, bank band is flooded into waters, and " green curtain " bank is floated, and not only defines view, more can tackle bank band upstream pollution of area source, reduces the corrosion function of water wave opposite bank band.
A kind of flotation gear, comprise the ring monomer 21 of several independent and connected bunchiness and be connected to the unrestrained cage 22 that disappears of one end, described each ring monomer 21 and disappearing between unrestrained cage 22 is connected by biological rope 3, described ring monomer 21 is cylindric, which is provided with self-locking band 23, the described unrestrained cage 22 that disappears is made up of thin bamboo strips used for weaving, and its inside is filled with foam block.
Concrete, each ring monomer 21 is fixed on ramping constraints by self-locking band 23, and through outgrowth, ramping constraints can finally be attached on each ring monomer; Then be flexible coupling by biological rope 3 between ring monomer 21, thus realize mutually pining down between ring monomer 21, make it better adapt to the fluctuation of water wave, reduce the erosion of its opposite bank band; Certainly, self-locking band 23 herein also can change thin wire or glass rope into.According to actual conditions, also can fill adsorbate in ring monomer 21, adsorbate Absorbable rod pollutant, further pollutant burden in abatement water body.
In the present embodiment, the distance between adjacent ring monomer 21 is 5 ~ 8 centimetres, and the length of ring monomer 21 is 45 ~ 55 centimetres, and diameter is less than 3 centimetres.Elongated ring monomer 21 both supported, again for which providing showy power for ramping constraints provides climbing; Meanwhile, suitable length and distance can also make this device better adapt to water wave fluctuate.
In the present embodiment, described ring monomer 21 is provided with groove 24.Because the flotation gear 2 on adjacent ramping constraints unit need connect into latticed with biological rope 3, groove 24 can carry out spacing to the biological rope 3 of binding, prevents its play.
Certainly, also directly two self-locking bands 23 can be set on each ring monomer 21, now, without the need to arranging groove 24 again on ring monomer 21.In two self-locking bands 23, one for ring monomer 21 is fixed on ramping constraints, each ring monomer 21 can be fixed on biological rope 3 to make the flotation gear 2 on adjacent ramping constraints unit connect into latticed by another.Self-locking band 23 light weight, both can not affect water quality, can simplify again the connection procedure between flotation gear 2 and ramping constraints and biological rope 3.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (10)
1. be adapted to a green curtain construction process for type falling zone, abrupt slope, it is characterized in that mainly comprising the following steps:
(1) according to the territorial characteristics of reservoir area of Three Gorges, select the ramping constraints of resistance to water logging and carry out greenhouse cultivation;
(2) on each ramping constraints unit, flotation gear is fixed;
(3) select one section of bank band had compared with Large Water fluctuation, determine the year peak level at this bank band place, year lowest water level, stormy waves intensity and water quality situation, according to SEA LEVEL VARIATION situation determination ramping constraints unit planting location;
(4) plant along interval, Riparian Zone direction the ramping constraints unit that several secure flotation gear;
(5) biological rope is utilized to connect into latticed by the flotation gear on adjacent ramping constraints unit.
2. the green curtain construction process being adapted to type falling zone, abrupt slope according to claim 1, is characterized in that: the ramping constraints in described step (1) is at least kudzu ， Bai le, Cyclea racemosa Oliv, the one in chinaroot greenbrier.
3. the green curtain construction process being adapted to type falling zone, abrupt slope according to claim 1, is characterized in that: described ramping constraints unit is planted in 1 ~ 2 meter of on water level ceiling for accumulation according to water-level fluctuation Changing Pattern.
4. the green curtain construction process being adapted to type falling zone, abrupt slope according to claim 1, is characterized in that: described flotation gear is fixed on 1 ~ 1.5 meter of of more than ramping constraints unit root.
5. the green curtain construction process being adapted to type falling zone, abrupt slope according to claim 1, is characterized in that: the plantation spacing between described adjacent ramping constraints unit is 25 ~ 40 centimetres.
6. the green curtain construction process being adapted to type falling zone, abrupt slope according to claim 1, is characterized in that: described flotation gear is made up of ring and thin bamboo strips used for weaving.
7. one kind is applicable to the flotation gear in green curtain described in any one of claim 1 ~ 6, it is characterized in that: comprise the ring monomer of several independent and connected bunchiness and be connected to the unrestrained cage that disappears of one end, described each ring monomer and disappearing between unrestrained cage is connected by biological rope, described ring monomer is cylindric, which is provided with self-locking band, the described unrestrained cage that disappears is made up of thin bamboo strips used for weaving, and its inside is filled with foam block.
8. flotation gear according to claim 7, is characterized in that: the distance between described adjacent ring monomer is 5 ~ 8 centimetres, and the length of each ring monomer is 45 ~ 55 centimetres, and diameter is less than 3 centimetres.
9. flotation gear according to claim 7, is characterized in that: described ring monomer is provided with groove.
10. flotation gear according to claim 7, is characterized in that: described self-locking band has two groups.
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| CN201510975403.2A CN105544456B (en) | 2015-12-22 | 2015-12-22 | A kind of green curtain construction method and its flotation gear for being adapted to abrupt slope type falling zone |
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| CN201510975403.2A CN105544456B (en) | 2015-12-22 | 2015-12-22 | A kind of green curtain construction method and its flotation gear for being adapted to abrupt slope type falling zone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988999A (en) * | 2017-11-08 | 2018-05-04 | 三峡大学 | A kind of hydrodynamic force lifts falling zone Wetland ecological governing system and its construction method certainly |
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| KR101326581B1 (en) * | 2013-07-31 | 2013-11-08 | 주식회사 현진기업 | A growth box system using aquatic plant |
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| CN104195978A (en) * | 2014-09-15 | 2014-12-10 | 中国科学院重庆绿色智能技术研究院 | Ecological restoration and water-soil conservation method for wide gentle-slope hydro-fluctuation belt in large-scale water projects |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100710859B1 (en) * | 2005-09-22 | 2007-04-25 | 주식회사 아썸 | Constructed wetland system for nonpoint source polluted water treatment |
| CN2913350Y (en) * | 2006-06-12 | 2007-06-20 | 江苏大学 | Purifying device for centralization discharge area-source pollution |
| KR101326581B1 (en) * | 2013-07-31 | 2013-11-08 | 주식회사 현진기업 | A growth box system using aquatic plant |
| CN103613198A (en) * | 2013-12-03 | 2014-03-05 | 重庆绿色智能技术研究院 | Amphibious floating island suitable for riparian zone and construction method of revetment of floating island |
| CN104195978A (en) * | 2014-09-15 | 2014-12-10 | 中国科学院重庆绿色智能技术研究院 | Ecological restoration and water-soil conservation method for wide gentle-slope hydro-fluctuation belt in large-scale water projects |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107988999A (en) * | 2017-11-08 | 2018-05-04 | 三峡大学 | A kind of hydrodynamic force lifts falling zone Wetland ecological governing system and its construction method certainly |
| CN107988999B (en) * | 2017-11-08 | 2023-08-01 | 三峡大学 | Hydrodynamic self-lifting hydro-fluctuation belt wetland ecological management system and construction method thereof |
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