CN108793413A - Nearshore waters ecological restoring method - Google Patents

Nearshore waters ecological restoring method Download PDF

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Publication number
CN108793413A
CN108793413A CN201810597665.3A CN201810597665A CN108793413A CN 108793413 A CN108793413 A CN 108793413A CN 201810597665 A CN201810597665 A CN 201810597665A CN 108793413 A CN108793413 A CN 108793413A
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CN
China
Prior art keywords
pvc
float type
type oil
submerged plant
water
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Pending
Application number
CN201810597665.3A
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Chinese (zh)
Inventor
严中辉
丁熊秀
糜兵
糜兵一
钱梁
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Ningbo Landscape Architecture Design And Research Institute Co Ltd
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Ningbo Landscape Architecture Design And Research Institute Co Ltd
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Priority to CN201810597665.3A priority Critical patent/CN108793413A/en
Publication of CN108793413A publication Critical patent/CN108793413A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00Biological treatment of water, waste water, or sewage
    • C02F3/32Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae

Abstract

The invention discloses a kind of nearshore waters ecological restoring methods, belong to ecological restoration technical field, the restoration of the ecosystem scheme used at present is solved the problems, such as there are physical method is palliative and chemical method causes secondary pollution, its key points of the technical solution are that, include the following steps:1)Select submerged plant:Include mainly hydrilla verticillata, hornwort, watermifoil and eel grass;2)In delimiting repair coverage in waters, and the Solid Float Type Oil Containment PVC oils fence are set in the range periphery delimited, in the fishing net being connect with the Solid Float Type Oil Containment PVC oils fence is arranged in struck domain;3)Submerged plant is planted, the submerged plant be planted in the Solid Float Type Oil Containment PVC oils fence enclose set in the range of and in the top of fishing net;4)Plant selected submerged plant;The invention discloses a kind of nearshore waters ecological restoring methods, fundamentally solve the problems, such as body eutrophication, while also solving the problems, such as the secondary pollution of river and lake dredging up.

Description

Nearshore waters ecological restoring method
Technical field
The present invention relates to ecological restoration technical field, more particularly to a kind of nearshore waters ecological restoring method.
Background technology
The ecological pollution and weaving situation in the degeneration lake in China allow of no optimist, body eutrophication, a large amount of nitrogen, phosphorus etc. Nutriment is flowed into lake, river mouth, and algae and other planktonic organisms is caused to breed rapidly, and water body dissolved oxygen amount declines, water quality Deteriorate, fish and other biological mortality form wawter bloom, lake caused seriously to be degenerated.
With environmental consciousness, the enhancing and improvement of living standard of Ecological Concept, the lake ecosystem of degeneration is repaired Requirement it is also more and more urgent.There are two types of the restoration of the ecosystem schemes used at present:One is physical methods, i.e., are arranged by engineering It applies, carry out mechanical algae removement, dredge bed mud, drinking-water dilution etc., but it is often palliative, it can only be used as and tackle sudden water body dirt The emergency measure of dye;Second is that chemical method, such as addition chemical agent kill algae, addition molysite promotes the precipitation of phosphorus, it is de- that lime is added Hydrogen etc., but spend greatly, and easily cause secondary pollution.Therefore, it is current for how to waters repair using the method for ecology Main direction of studying.
Invention content
The object of the present invention is to provide a kind of nearshore waters ecological restoring methods, not only improve the water quality of water body, and The organic sludge of subaqueous deposit is removed, and dynamic equilibrium is formed with the pollution sources of lasting input, it is rich fundamentally to solve water body Nutrient laden problem, while also solving the problems, such as the secondary pollution of river and lake dredging up.
The present invention above-mentioned technical purpose technical scheme is that:
A kind of nearshore waters ecological restoring method, includes the following steps:
1)Select submerged plant:Include mainly hydrilla verticillata, hornwort, watermifoil and eel grass;
2)In delimiting repair coverage in waters, and the Solid Float Type Oil Containment PVC oils fence, Yu Suohua are set in the range periphery delimited The fishing net being connect with the Solid Float Type Oil Containment PVC oils fence is set in waters;
3)Submerged plant is planted, the submerged plant is planted in the Solid Float Type Oil Containment PVC oils fence and encloses the range set It is interior and in the top of fishing net;
4)Plant selected submerged plant.
Using the above scheme, it by kind of a planting submerged plant, is directly absorbed in water body and mud and is sought by root system and entire blade face Substance is supported, the oxygen of generation directly generates huge detergence(-cy) to entire water body from bottom to top;Vegetation can slow down stormy waves, favorably In the stability for keeping little particle substrate, increase the deposition of clast, to improve the transparency of water body;By the way that solid float is arranged The formula PVC oils fence avoid covering of the water plant to submerged plant to intercept peripheral lake surface water plant, be further ensured that submerged plant at Motility rate, and by the way that fishing net is arranged, large-scale herbivorous fishes are intercepted, protection submerged plant early period is gnawed.
Preferably, the restorative procedure further includes the harvesting to submerged plant every year, the time annual mid-May extremely 10 the end of month.
Using the above scheme, more quick using mechanized manner harvesting submerged plant, submerged plant is after harvesting It can be restored within 55-60 days higher biomass, and the output of second year is also unaffected, rationally harvesting will not cause Algae is spread unchecked and energy long-term operation has taken away nitrogen, phosphorus in water body.
Preferably, using corresponding planting patterns according to different planting seasons:
Hydrilla verticillata was inserted kind using branch point when March to April, and the March in December to latter year, May was whole to August using gemma plantation Strain plantation;It plants in 0.5 ~ 3m basins;
Hornwort, mid or late April transplanting plantation, plants in 1 ~ 3m basins;
Watermifoil, April to August cutting propagation are located in mobility water body;
Eel grass, March to seed propagation in April, May to August plant division plant;The seeding method depth of water plants the depth of water in 3 ~ 10cm, offshoot No more than 1m.
Using the above scheme, the plantation of submerged plant uses cuttage and seeding method, and Different Ways of Planting is to submerged plant Survival rate have large effect, cuttage survival rate highest;But after submerged plant survives and grows stabilization, different plantations Mode does not show significant difference in biomass of individual tree, and cuttage is selected to be more conducive to heavy water with seeding method mixed planting Absorption of the plant to N in lake and P.
Has coloured PVC high intensity cloth making preferably, the Solid Float Type Oil Containment PVC oils fence are dual coating.
Using the above scheme, Solid Float Type Oil Containment PVC oils fence stability is good, and wind and wave resistance is strong, and the oil fence of PVC material is dredged Oil, easy cleaning repair, has longer service life, is a kind of universal oil fence of economy, is placed on closely especially suitable for long-term cloth Bank calm water is also used for the cleaning of the rubbish and other floaters of certain floating waters surface in addition to it can intercept guiding oil spilling With the protection of the specific bodies of water etc..
Preferably, that the Solid Float Type Oil Containment PVC oils fence include oil fence ontology, to be set to the oil fence intrinsic is floating Son, the opotism and counterweight chain for being set to oil fence body bottom portion.
Using the above scheme, oil fence float is inflated with inflator, empties the water in float, after being full of gas in float, Buoyancy increases, and the oil fence climbs up on top of the water on the whole, and under the action of counterweight chain, the position of the Solid Float Type Oil Containment PVC oils fence is consolidated It is fixed, to intercept the water plant of peripheral lake surface.
Preferably, be provided in waters it is several be plugged in water bottom and be connected to the Solid Float Type Oil Containment PVC oils fence in The supporting rod of struck domain side.
Using the above scheme, the setting of supporting rod, further limits the position of the Solid Float Type Oil Containment PVC oils fence, and delineation is wanted The waters of purification.
It is enclosed preferably, the Solid Float Type Oil Containment PVC oils fence are additionally provided with for further fixing Solid Float Type Oil Containment PVC The drawstring of oil barrier.
Using the above scheme, it is bound close to the Solid Float Type Oil Containment PVC oils fence on bank by the way that drawstring is arranged, does not have to setting branch Strut can be fixed.
Preferably, it is to gather in-pick up mainly to use weed cutting machine, main working process to the harvesting of submerged plant Pick up-conveying-load onto ship-water transportation-unloads grass-dryness in the sun-dedusting cleaning-baling or crushing.
Using the above scheme, submerged plant is gathered in by weed cutting machine, and a series of processing is carried out to it, after crushing Submerged plant be also used as organic fertilizer for soil planting plants.
In conclusion the invention has the advantages that:
By kind of a planting submerged plant, nutriment in water body and mud, the oxygen of generation are directly absorbed by root system and entire blade face Huge detergence(-cy) directly is generated to entire water body from bottom to top;It is outer to intercept by the way that the Solid Float Type Oil Containment PVC oils fence are arranged Lake surface water plant is enclosed, covering of the water plant to submerged plant is avoided, is further ensured that the survival rate of submerged plant, and by the way that fishing is arranged Net, intercepts large-scale herbivorous fishes, and protection submerged plant early period is gnawed.
Description of the drawings
Fig. 1 is the structural schematic diagram of the Solid Float Type Oil Containment PVC oils fence in the present embodiment;
In figure:1, the Solid Float Type Oil Containment PVC oils fence;11, oil fence ontology;12, float;13, opotism;14, counterweight chain;15, it draws Rope;2, supporting rod.
Specific implementation mode
Below in conjunction with attached drawing, invention is further described in detail.
A kind of nearshore waters ecological restoring method disclosed in the present embodiment, as shown in Figure 1, including the following steps:
1)As growing plants in water, effect is extremely important;
A. submerged plant is selected:A, it purifies water, root system and entire blade face directly absorb nutriment in water body and mud, generate Oxygen huge detergence(-cy) directly is generated to entire water body from bottom to top;
B, physical action, vegetation can slow down stormy waves, are conducive to the stability for keeping little particle substrate, increase the deposition of clast, To improve the transparency of water body;
C, protection biology inhibits biological and tripton, improves Underwater Optical and shine by being effectively increased spatial niche And dissolved oxygen condition, the food chain to form complicated provide food, place and other requirements, also support indirectly it is carnivorous and Broken food food chain is that aqueous bio diversity is rely the basis of maintenance;
D, beautifying water body, partition space increase level, improve water transparency, beautify visual effect.
B. planting principle:
A, the strong water plant of selection absorbability;
B, select easy to clean, controllability strong, it is not easy to the water plant spread unchecked;
C, based on being configured with indigenous plant kind.
C. the submerged plant of final choice reparation:Hydrilla verticillata, hornwort, watermifoil and eel grass;
2)In delimiting repair coverage in waters, and in the range periphery setting Solid Float Type Oil Containment PVC oils fence 1 delimited, in institute It strikes the fishing net for being arranged in domain and being connect with the Solid Float Type Oil Containment PVC oils fence 1;
A. submerged plant periphery places the Solid Float Type Oil Containment PVC oils fence 1 and does wave resistance, every dirty measure, the Solid Float Type Oil Containment PVC oils fence 1 includes oil fence ontology 11, the float 12 being set in oil fence ontology 11, the opotism 13 for being set to 11 bottom of oil fence ontology With counterweight chain 14;
The Solid Float Type Oil Containment PVC oils fence 1 are made of the high intensity cloth of dual coating color salmon pink PVC, and oil resistant, sea water resistance are rotten Erosion, ultra-violet radiation resisting;1 structure of the Solid Float Type Oil Containment PVC oils fence is beam formula or is inflatable, and 12 buoyancy reserve of float is big, Rider, stability are good, and wind and wave resistance is strong;1 skirt cloth oleophobic of the Solid Float Type Oil Containment PVC oils fence, easy cleaning repair, there is longer use Service life is a kind of universal oil fence of economy, offshore calm water is placed on especially suitable for long-term cloth, and oil spilling is guided except that can intercept Outside, it is also used for the protection etc. of the cleaning and the specific bodies of water of the rubbish and other floaters of certain floating waters surface.
B. it is provided in waters and several are plugged in water bottom and are connected to the Solid Float Type Oil Containment PVC oils fence 1 in being struck The supporting rod 2 of domain side further limits the position of the Solid Float Type Oil Containment PVC oils fence 1, draws a circle to approve the waters to be purified.
C. the Solid Float Type Oil Containment PVC oils fence 1 are additionally provided with the drawing for further fixing the Solid Float Type Oil Containment PVC oils fence 1 Rope 15;Drawstring 15 and counterweight chain 14 are used as primary structure member, column body tensile property high;It is equipped with elastic jackstay between float 12, makes to enclose Oil barrier keeps straight and upright, ensures effective draft.
3)Submerged plant is planted, the submerged plant, which is planted in the Solid Float Type Oil Containment PVC oils fence 1 and encloses, to be set In range and in the top of fishing net.
The Solid Float Type Oil Containment PVC oils fence 1 and the necessity and advantage of fishing net setting:
A, PVC oil boom distributings, recycling is very simple, visual effect is graceful;
B, stability is good, and wind and wave resistance is strong;
C, large-scale herbivorous fishes are intercepted, protection submerged plant early period is gnawed;
D, peripheral lake surface water plant is intercepted, covering of the water plant to submerged plant is avoided, ensures submerged plant survival rate;
E, repair coverage, the rubbish and other floaters of the certain floating waters surface of easy cleaning, convenient for checking and accepting delimited.
F, the pollutant that upstream stream entering lake and gate flow into is intercepted.
4)Plant selected submerged plant:
Cuttage, heavy hydroponics and seeding method can be used in the plantation of submerged plant;Survival rate of the Different Ways of Planting to submerged plant There is a large effect, cuttage survival rate highest in three kinds of planting patterns;But it is different after submerged plant survives and grows stabilization Planting patterns, significant difference is not shown in biomass of individual tree, therefore selects cuttage and seeding method mixed planting;
Hydrilla verticillata was inserted kind using branch point when March to April, and the March in December to latter year, May was whole to August using gemma plantation Strain plantation;It plants in 0.5 ~ 3m basins;25 ~ 30 DEG C of preference temperature;
Hornwort, mid or late April transplanting plantation, plants in 1 ~ 3m basins;Thermophily is wider, when water temperature is down to 4 DEG C It can well-grown;
Watermifoil, April to August cutting propagation are located in mobility water body;26-30 DEG C of preference temperature;
Eel grass, March to seed propagation in April, May to August plant division plant;The seeding method depth of water plants the depth of water in 3 ~ 10cm, offshoot No more than 1m, 25-30 DEG C of preference temperature;
The nutriment, including nitrogen, phosphorus etc. in water body can be absorbed in growth course, and the annual heavy water of in a planned way harvesting can be used The mode of plant shifts excessive nutriment in water body, and positive effect is played to alleviating body eutrophication.
D. the harvesting of submerged plant
To the harvesting of submerged plant, this uses weed cutting machine, and annual to gather in the time be mid-May to 10 the end of month, annual practical work It is 120 ~ 130 days to make day, and each fleet manipulates weed cutting ship by 1 people, and 1 people drives tractor tug, and 2 people transmit heap on the careless ship of dress Discharge water grass, arranges to unload strawman person on the bank, to realize continuous production operation;Its main working process is harvesting-pickup-conveying- Grass-dryness in the sun-dedusting cleaning-baling or crushing are unloaded in shipment-water transportation-.
It needs to consider the effective protection to the plant-type lake ecosystem, money using mechanized manner harvesting submerged plant Source utilizes and maintains to the greatest extent the needs of ecosystem benign cycle.Since submerged plant has very strong breeding energy Power can be restored to higher biomass in 55-60 days after harvesting, and the output of second year is also unaffected, rationally Harvesting will not cause algae spread unchecked and can long-term operation taken away nitrogen, phosphorus in water body.
By kind of the planting submerged plant in lake or river, the water quality of water body is not only improved, and removes underwater settling Long-pending organic sludge, and dynamic equilibrium is formed with the pollution sources of lasting input, fundamentally solve the problems, such as body eutrophication, together When also solve the problems, such as the secondary pollution of river and lake dredging up.
This specific embodiment is only explanation of the invention, is not limitation of the present invention, people in the art Member can as needed make the present embodiment the modification of not creative contribution after reading this specification, but as long as at this It is all protected by Patent Law in the right of invention.

Claims (8)

1. a kind of nearshore waters ecological restoring method, which is characterized in that include the following steps:
1)Select submerged plant:Include mainly hydrilla verticillata, hornwort, watermifoil and eel grass;
2)In delimiting repair coverage in waters, and the Solid Float Type Oil Containment PVC oils fence are set in the range periphery delimited(1), in Setting and the Solid Float Type Oil Containment PVC oils fence in struck domain(1)The fishing net of connection;
3)Submerged plant is planted, the submerged plant is planted in the Solid Float Type Oil Containment PVC oils fence(1)Enclose the model set In enclosing and in the top of fishing net;
4)Plant selected submerged plant.
2. nearshore waters ecological restoring method according to claim 1, which is characterized in that the restorative procedure further includes every Harvesting of the year to submerged plant, the time is in annual mid-May to 10 the end of month.
3. nearshore waters ecological restoring method according to claim 1, which is characterized in that adopted according to different planting seasons With corresponding planting patterns:
Hydrilla verticillata was inserted kind using branch point when March to April, and the March in December to latter year, May was whole to August using gemma plantation Strain plantation;It plants in 0.5 ~ 3m basins;
Hornwort, mid or late April transplanting plantation, terminates plantation in 1 ~ 3m basins;
Watermifoil, April to August cutting propagation are located in mobility water body;
Eel grass, March to seed propagation in April, May to August plant division plant;The seeding method depth of water plants the depth of water in 3 ~ 10cm, offshoot No more than 1m.
4. nearshore waters ecological restoring method according to claim 1, which is characterized in that the Solid Float Type Oil Containment PVC encloses Oil barrier(1)Have coloured PVC high intensity cloth for dual coating to make.
5. nearshore waters ecological restoring method according to claim 1, which is characterized in that the Solid Float Type Oil Containment PVC encloses Oil barrier(1)Including oil fence ontology(11), be set to oil fence ontology(11)Interior float(12), be set to oil fence ontology (11)The opotism of bottom(13)And counterweight chain(14).
6. nearshore waters ecological restoring method according to claim 1, which is characterized in that be provided with several insertings in waters In water bottom and it is connected to the Solid Float Type Oil Containment PVC oils fence(1)Supporting rod in struck domain side(2).
7. nearshore waters ecological restoring method according to claim 1, which is characterized in that the Solid Float Type Oil Containment PVC encloses Oil barrier(1)It is additionally provided with for further fixing the Solid Float Type Oil Containment PVC oils fence(1)Drawstring(15).
8. nearshore waters ecological restoring method according to claim 2, which is characterized in that main to the harvesting of submerged plant Using weed cutting machine, main working process is that harvesting-pickup-conveying-shipment-water transportation-is unloaded grass-dryness in the sun-and removed Dirt cleaning-baling or crushing.
CN201810597665.3A 2018-06-11 2018-06-11 Nearshore waters ecological restoring method Pending CN108793413A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110291984A (en) * 2019-08-09 2019-10-01 中国水产科学研究院渔业机械仪器研究所 Raft frame and system for large-scale waters deep water plantation water plant

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2289782Y (en) * 1997-04-18 1998-09-02 青岛黄海防污成套设备厂 Rubber railings type oil removing device
JP2007209867A (en) * 2006-02-08 2007-08-23 Tadami Shigetome Water purification process
CN102491522A (en) * 2011-11-24 2012-06-13 中国科学院生态环境研究中心 Water eco-environment protection method based on water plant harvesting
CN203498166U (en) * 2013-10-14 2014-03-26 上海海洋大学 Net cage for submerged plant
CN104310590A (en) * 2014-10-22 2015-01-28 中国科学院南京地理与湖泊研究所 Method for constructing lake submerged plant communities
CN107265647A (en) * 2017-02-27 2017-10-20 江西省水利科学研究院 It is a kind of to temper the method that submerged plant extends ability

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2289782Y (en) * 1997-04-18 1998-09-02 青岛黄海防污成套设备厂 Rubber railings type oil removing device
JP2007209867A (en) * 2006-02-08 2007-08-23 Tadami Shigetome Water purification process
CN102491522A (en) * 2011-11-24 2012-06-13 中国科学院生态环境研究中心 Water eco-environment protection method based on water plant harvesting
CN203498166U (en) * 2013-10-14 2014-03-26 上海海洋大学 Net cage for submerged plant
CN104310590A (en) * 2014-10-22 2015-01-28 中国科学院南京地理与湖泊研究所 Method for constructing lake submerged plant communities
CN107265647A (en) * 2017-02-27 2017-10-20 江西省水利科学研究院 It is a kind of to temper the method that submerged plant extends ability

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110291984A (en) * 2019-08-09 2019-10-01 中国水产科学研究院渔业机械仪器研究所 Raft frame and system for large-scale waters deep water plantation water plant

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