CN2925077Y

CN2925077Y - Suspended-plant float bed for enriched treating lake storm area

Info

Publication number: CN2925077Y
Application number: CNU2006200728132U
Authority: CN
Inventors: ***; 李宽意; 朱泽聪
Original assignee: Nanjing Institute of Geography and Limnology of CAS
Current assignee: Nanjing Institute of Geography and Limnology of CAS
Priority date: 2006-04-26
Filing date: 2006-04-26
Publication date: 2007-07-25
Anticipated expiration: 2016-04-26

Abstract

The utility model provides a float bed for float plants for nutrition controlling in windy area in a lake, which is characterized in that a float carrier and a fixed facility are provided to combine the float plant with the float carrier, so that they will jointly float above the water. The float carrier can either be a dilly bag, in which the float plant - the drought-loving lotuses are wrapped; the hole diameter of the dilly bag is 2-3 cm, the dilly bag is fixed in the water bottom by a pile, rope or a stone cage; or be a bamboo raft, the stems of the drought-loving lotuses are bound by a rope and then are placed in the clearance between two bamboos of the bamboo raft, and are fixed with the bamboo at two sides with a rope, and are fixed in the water bottom with a pile or rope.

Description

A kind of fluitante floating bed that is used for fetch, lake eutrophication control

Technical field

The utility model relates to plant growing carrier, the particularly a kind of fluitante floating bed of using when lake ecological is repaired carrying out that is used for fetch, lake eutrophication control.

Background technology

Body eutrophication problems such as lake are that the present world faces very serious environmental problem, and are especially serious in China, particularly have a water quality type lack of water difficult problem in economically developed zone.Utilize fluitante as pionner, make up good aquatic ecosystem, be widely used in the purification and the improvement of eutrophication water, for example United States Patent (USP) 5820759,5811007, Chinese patent CN1425616, CN1426966, CN1552641, CN1580415, CN1683258, used fluitante mostly is Eichhornia crassipes, it all is water body at no stormy waves, for example: the river, the river shoal, the pond, lakeshore, lakelet is having suitable high sea district (mean wave height is greater than 10cm), owing to moving up and down of wave, cause the root, stem and leaf phase mutual friction between the fluitante individuality and damage, therefore nature, amount of damage almost can not normally survive much larger than amount of growth; Under wind wave action, floating vegetation can waft from the position of setting in addition.

Summary of the invention

The purpose of this utility model is a kind of fluitante floating bed that is used for fetch, lake eutrophication control that provides at above problem.Technical scheme is as follows: a kind of fluitante floating bed that is used for fetch, lake eutrophication control, it is characterized in that being provided with a floating carrier and fixation means, with fluitante with and floating carrier form one, swim on the water surface jointly;

Said floating carrier can be a mesh bag, parcel fluitante happiness yerbadetajo seed dish in the mesh bag, and mesh bag hole 2～3cm is fixed in the bottom with stake, rope or gabion;

Said floating carrier also can be a bamboo raft, and the stem of just several happiness yerbadetajo seed dishes is placed in the hole between two mao bamboons of bamboo raft after tying up abreast with rope, and fixedlys connected with the mao bamboon of both sides with rope, with, restrict and be fixed in the bottom.

Advantage of the present utility model and effect: happiness yerbadetajo seed dish (Alternanthera philoxcroides), Amaranthaceae, it is a kind of that alternanthera belongs to, the popular name water peanut is Herba Ammanniae Bacciferae again, alligator alternanthera root or herb, the revolution grass, perennial perennial root draft is given birth in the natural pond, is amphibious emergent aquactic plant originally, can tame the fluitante in the fine growth of open lake surface.Experiment shows that its wind wave resistance, cold resistance etc. are much better than Eichhornia crassipes.Pass through present technique, make up floating vegetation group, bring into play its " forward's effect ": enhance the transparency fast, cut down stormy waves intensity especially suppress to regenerate wave generation, quicken bed mud alluvial, containment algal grown, for the recovery of floatingleaved plant, especially be the condition of reconstruction creation necessity of submerged plant; Utilize floating vegetation growth to absorb nutritive salt, provide carrier and nutrient for growth and breeding with its symbiotic microorganism, reduce the water nutrition salt content, impel the rapid and natural of aquatic vegetation to recover, final and the common aquatic ecosystem that makes up health such as floatingleaved plant, submerged plant, improve the detergent power of water body, can also resist certain environmental disaster simultaneously, realize continuing to improve the target of lake water quality, especially continue to improve aspect the water head site water quality in China, have higher application prospect.Suitable high sea district (mean wave height is greater than 10cm) is being arranged, characteristics according to wave, make up floating bed, form integral body, realize fixedly fluitante, particularly reduce the relative motion between the fluitante individuality, reduce mutual frictional dissipation widely, make amount of damage much smaller than amount of growth, thereby obtain normal survival, good growth.In addition,, expose on the water surface for transforming the bamboo raft (wide 10m, the long 5m of monomer always prolong thousands of rice) of basic ecotope in the construction of fetch, lake, not attractive in appearance; In addition, under action of ultraviolet radiation, the life-span is also lower.By this technology, utilize happiness yerbadetajo seed dish to cover exposed bamboo raft, not only attractive in appearance; Can prolong simultaneously the life-span more than one times that makes bamboo raft; Further improve the unrestrained effect that disappears of bamboo raft, improve water transparency; In addition, plant the high-speed rapid growth of happiness yerbadetajo seed dish on the bamboo raft, not only absorb water nutrition salt in a large number, and its root pheromone is restrained blue algae growth, is impelled the flocculation of water body suspension, improve water transparency, for other periphyton provides carrier, further purify water simultaneously, impel the rapid and natural of aquatic vegetation to recover, for good condition has been created in the aquatic ecosystem reparation and the reconstruction of health.In China lake eutrophication platform reason, especially continuing to improve aspect the water head site water quality of lake, has higher application prospect.

Description of drawings

Fig. 1 is the fluitante floating bed embodiment schematic diagram of mesh bag structure;

Fig. 2 is the fluitante floating bed embodiment schematic diagram of bamboo raft structure.

Embodiment

Referring to Fig. 1, the fluitante floating bed monomer of mesh bag structure is considered easy to process and reduced cost, and is proper less than the net sheet that 400cm is wide.Net is too wide, and following process inconvenience is netted too narrowly, and following process one set pattern film cost increases.Test shows: mesh is too big, and the rhizome of plant under the effect of stormy waves, is fled from easily; Mesh is too little, is unfavorable for that stem leaves of plants passes mesh, influences its growth, uses the anti-aging knotted netting of 2-3cm mesh polyethylene relatively more suitable (for example No. 7 fishing nets, 3*4 thigh); The happiness yerbadetajo seed dish of selecting Amaranthaceae, alternanthera genus is planted method for planting and with mesh bag it is wrapped up as fluitante, and mesh bag hole 2～3cm is fixed in the bottom with stake, rope or gabion.Implantation time should be selected in happiness yerbadetajo seed dish and not germinate or just germinate, and this moment is easy to process, and the loss that processing is caused is less, survival rate higher (for example, in TAI HU AREA, should be selected in annual February in the early spring to March).

For the wind wave resistance intensity of strengthening above-mentioned fishing net and be convenient to fix, reduce cost simultaneously, through comparative experiments, select following materials and methods for use: the center line of this fishing net is fixing with thin longline (the anti-aging cotton rope of the polyethylene of Φ 3mm) with thick longline (the anti-aging cotton rope of the polyethylene of Φ 5mm), both sides, and on the thickness longline, use formal wire (15 strands of anti-aging cotton ropes of polyethylene) fixing respectively every 25cm, be made into " reprocessing fishing net ".

In order to improve the ability of wind wave resistance, be advantageously selected to (the surface density 5-10kg/m of colony of the happiness yerbadetajo seed dish of sheet ²), in water, it is cut into the band about wide 150cm; With above-mentioned " reprocessing fishing net " it is wrapped up up and down; The thick longline of fishing net center line is stayed a side of colony's band of dish " happiness yerbadetajo seed ", the thin longline in fishing net both sides be placed on " colony's band of happiness yerbadetajo seed dish " opposite side about; Sewing up thin longline (and former fishing net both sides) promptly finishes liking the parcel of yerbadetajo seed dish band.Perhaps will like the yerbadetajo seed dish and fish for, be transported to the lakeside in engineering district; Above-mentioned " reprocessing fishing net " spread out thick 15cm happiness yerbadetajo seed dish (the surface density 8-15kg/m that is about of half side therein fishing net tiling ²), form band, thereafter other half side fishing net is turned over turnback, cover this happiness yerbadetajo seed dish band, sew up thin longline again, can finish parcel to happiness yerbadetajo seed dish band.For the relative motion that reduces under wind wave action causes the damage of liking the yerbadetajo seed dish, with the above-mentioned happiness yerbadetajo seed dish that has wrapped up, in direction perpendicular to master, thin longline, every 100cm, reinforce 1 rope for drawing water from a well (the anti-aging rope of Φ 1.5mm polyethylene), the company of wearing likes yerbadetajo seed dish fishing net up and down, makes a call to a fast knot every about 30cm.Can finish about wide 140cm, about thick 15cm, surface density 5-10kg/m ²" monomer of fluitante floating bed ".The monomer parallel stitching of the anti-aging rope of polyethylene (Φ 3mm's) with above-mentioned 3～4 fluitante floating beds, every about 30cm, make a call to a fast knot, can finish and make up wide 400～600cm, fluitante floating bed about thick 15cm, again with behind their elongatedness direction connect in series, it is plant floating bed to constitute strip, and a plurality of strips are disposed on the water surface.More shallow (less than 200cm) locates in the depth of water, and (Φ 8～15cm) or piling bar are fixed (Φ 4cm) with 2 row mao bamboon stakes in the both sides of fluitante floating bed; Among every row, the spacing 200～250cm of stake, stake is about 500cm with the spacing of floating bed, connects with the anti-aging rope of polyethylene (Φ 5mm) to get final product.Because the fetch, lake attacks through round storm wave often, above-mentioned stake is fixing, in case there is stake to be pulled up, then the wind wave resistance intensity of engineering descends thereupon, utilizes gabion to fix and can overcome this defective.Through comparative experiments, select following materials and methods for use: make line density 15kg/m gabion with No. 7 fishing nets, every 1m, lash lead (the anti-aging rope of Φ 6mm polyethylene, its length be the depth of water in engineering district add again 2m and), arrange two gabions in the both sides in needs plantations fluitante floating bed zone respectively, two gabions are connected and fixed with the both sides of fluitante floating bed respectively by lead.Intake in fetch, Taihu Lake-Mei Liang gulf voe, utilize this technology, the floating vegetation group (floating bed) of plantation, high wind wave (" dandelion " typhoon passed by in 2004), algal tufa disaster (7～September in 2004) test are experienced in success, good growth, substantially do not need to safeguard, be preferably in and cradle 1～2 time at the overstocked place of growth for 6～August.Experiment shows that under the following condition of cover degree 15%～25%, in 7～15 days, can make bad V class water correction is III water quality.

Referring to Fig. 2, the fluitante floating bed monomer of bamboo raft (concentric reducer is handed over the chromium setting) structure, stem with several happiness yerbadetajo seed dishes, tying up the back with rope (pricks every about 25cm together, make thickness and be Φ 6～8cm, long 500cm (or equal the single mao bamboon of bamboo raft monomer length) elongated cylinder monomer) be placed in the hole between two mao bamboons of bamboo raft abreast, and fixedly connected with the mao bamboon of both sides with rope, with, restrict and to be fixed in the bottom.Intake in fetch, Taihu Lake-Mei Liang gulf voe is for transforming bamboo raft (the wide 10m of basic ecotope in the construction of fetch, lake; The long 5m of monomer is fixed in the bottom with 2t armored concrete square column; Behind some bamboo raft monomer elongatedness direction connect in series, it is plant floating bed to constitute strip, and a plurality of strips are disposed on the water surface.Utilize this technology, plantation happiness yerbadetajo seed dish, good growth, performance good action.Implantation time is selected in February in the early spring to March, and like the yerbadetajo seed dish and do not germinate or just germinate this moment, and the loss that processing is caused is less.More backward, effect is poor more, after September, should not plant.

Claims

1, a kind of fluitante floating bed that is used for fetch, lake eutrophication control, it is characterized in that being provided with a floating carrier, fluitante and floating carrier are formed one, swim on the water surface and jointly and be fixed in the bottom with fixation means, said floating carrier is mesh bag or bamboo raft, parcel fluitante or fluitante fixed with rope and bamboo raft in the mesh bag.

2, fluitante floating bed according to claim 1 is characterized in that parcel fluitante happiness yerbadetajo seed dish in the mesh bag, and mesh bag hole 2～3cm is fixed in the bottom with stake, rope or gabion.

3, fluitante floating bed according to claim 1, it is characterized in that stem with several happiness yerbadetajo seed dishes, be placed in the hole between two mao bamboons of bamboo raft after tying up with rope abreast, and fixedly connected with the mao bamboon of both sides with rope, with, restrict and be fixed in the bottom.