252 results about "Water smartweed" patented technology

The invention relates to the technical field of ecological restoration of water environment, and especially relates to a biological and ecological restoration system of eutrophic rivers and lakes. Ecological floating beds are laid along a bank, the water surface coverage rate of the floating beds is 15-20%, and each of the floating beds consists of a floating plate, planting baskets, a planting basket filler, floating bed plants, a nylon net, immobilized microorganism particles, a biological filler and artificial waterweeds. The planting baskets are placed in the planting basket holes of the floating plate, the planting basket filler is arranged in the planting baskets, the floating bed plants are planted in the planting basket filler, the nylon net suspends below the floating plate, the immobilized microorganism particles suspend between plant roots, the biological filler suspends below the nylon net, the artificial waterweeds are planted at the water bottom, and submerged plants are properly planted in a water area with two times in the transparency. The system has the advantages of simple and economic carrier, high strength, good durability, reliable planting, natural water ecological landscape, and engineering water quality improvement; and compared with systems in the prior art, the system focuses on the ecological restoration and construction of river and lake water, realizes the self purification, self regulation and self maintenance of pollutants in a certain concentration range, and is an effective way to improve the water quality without all-basin pollutant interception at the present stage.

The invention relates to a method for culturing river crabs, in particular to a method, by which the river crabs cultured in a pond or other water areas and become large-size commercial crabs. The method is characterized in that the method comprises the steps of purchasing crab larvae; culturing the crab larvae: the disinfection of the crab larvae incubating pond, the arrangement of the escape preventing fence, fertilization, water injection to the crab larvae pond, the float grass cultivation, the stocking of the crab larva, and the feeding of artificial food; the over-winter of first instar crab; the culturing of the second instar crab: the disinfection of the crab larvae incubating pond, the arrangement of the escape preventing fence, fertilization, water injection to the crab larvae pond, the float grass cultivation, the feeding of the first instar crab, and the feeding of artificial food; controlling the gonad development speed of the second instar crab: the artificial over-summer and the natural over-winter of the second instar crab; culturing the large-size river crabs: the feeding and management for the second instar crab, the artificial induction to the river crabs for exuviation and growth. The method is in favor of increasing the culture scale, the culturing yield and the economic benefit through controlling the gonad development speed of the second instar crabs and applying the technologies of culturing the large-size river crabs.

A submerged water quality improving device of combined ecological floating floor belongs to the technical field of ecological environment engineering, comprising a floating plate, a convex floating block, a planting basket, planting basket filler, floating floor plant, artificial float grass, and the like; the convex floating block is fixed above the floating plate; the planting basket is arranged in the planting basket hole of the floating plate; the planting basket filler is arranged in the planting basket; the floating floor plant is cultivated in the planting basket filler; and the artificial float grass is hung under the floating plate. The floating plate is internally provided with a reinforcing rib; and the convex floating block is made into biomimetic shape. After the floating plate and the convex floating block are submerged, the total buoyancy is more than the sum of the total weight of the floating plate, the planting basket, the planting basket filler, the artificial float grass and the float convex floating block, and 1.5 times of weight of the floating floor plant; and the convex floating block emerges from the water. The carrier is simple, convenient and economic, and has high intensity, good durability and reliable planting; the floating plate is submerged so as to achieve the effect of natural water ecological landscape and engineered effect of water quality improvement.

The invention belongs to the field of aquiculture, and relates to a method for breeding crabs and controlling diseases. The method provides an original biological environment with the best surviving and growing conditions for natural crabs, and obtains high quality Chinese Eriocheir sinensis as a crab seed by backcross and purification and rejuvenation. Breeding of the crab is returned nature by creating the original biological environment of crab survival, namely a natural crab pond, and carrying out a scientific and biological breeding method; and original biological environment and range suitable for crab growth are set, such as requirement on original biology of the crab pond, water quality, water temperature, breeding density, scientific bait dosage, water seed coverage rate and the like, and the unhealthy method which uses antibiotics, hormones and other medicaments and industrial synthetic feeds in a breeding process is eliminated, so that the bred crabs are big and strong, has rich cream, delicious meat and rich smell of wild crabs with average specification of between 150 and 250 grams. The crab can meet the requirements on export and pollution-free food, has high economic value and good social benefit.

The invention discloses a method for planting rice in a Procambarus clarkii culture pond. The method comprises the steps of carrying out standard pond reconstruction, carrying out pre-culture preparation, carrying out juvenile Procambarus clarkii stocking, carrying out high-straw rice transplanting, carrying out planting and culturing management, carrying out commercial Procambarus clarkii culturing and fishery and carrying out high-straw rice harvesting. According to the method, rice planting is introduced to aquaculture ponds firstly, the Procambarus clarkii culture pond is subjected to simple engineering reconstruction, Procambarus clarkii, rice and water plants are organically combined so as to realize the mutualism of the Procambarus clarkii and the rice, the Procambarus clarkii is used for carrying out soil loosening and insect damage removing on the rice, and the rice absorbs nutrient elements, such as N and P, in water, so that the water for culture is purified, habitation and shelter sites are provided for the Procambarus clarkii, a good growth environment is created for the Procambarus clarkii, and the quality of the Procambarus clarkii is improved. The method disclosed by the invention is simple and convenient in operation and is suitable for being popularized to shrimp and crab culture ponds, the whole course of production has no need of medication, produced rice and Procambarus clarkii are high in quality, and the economic benefit increased per mu is more than 1,500 RMB, so that the method has great social and economic benefits.

The invention discloses a pollution-free fresh water lobster breeding method which includes the steps that a pool is prepared, a greenhouse, an anti-theft facility and a water inlet / outlet pipe with a filtering screen piece are configured, water is injected after sunshine, water plants are planted after disinfection, slow-release nutrient substance and small shelters are put into the pool, the water temperature, dissolved oxygen and PH value of the pool are adjusted, then young lobsters are put into the pool, feeding is conducted according to different periods of the young lobsters, the water quality is improved at a fixed period, young grass carp and screws are put into the pool, and pollution-free fresh water lobsters are obtained. By means of the pollution-free fresh water lobster breeding method, an excellent growth environment is provided for the lobsters through algae, the slow-release nutrient substance and the small shelters, microorganism reagents and vitamin complex are put into the pool at a fixed period, the lobsters are fed according to different growth periods, quick growth of the lobsters is promoted on the basis of guaranteeing healthy and pollution-free lobsters, and the yield of the lobsters is increased.

The invention relates to a circulating-water aquaculture system and application thereof, which belongs to field of aquaculture; the circulating-water aquaculture system comprises a culture area, a tail water purification area, wherein, the culture area comprises: crab culture ponds and fish culture ponds; the circulating-water aquaculture also comprises: water-inlet channels and water-outlet channels; the water-outlet channels are arranged both between the crab culture ponds and the tail water purification area and between the fish culture ponds and the tail water purification area, the water-inlet channels are arranged both between the tail water purification area and the crab culture ponds and between the tail water purification area and the fish culture ponds; meanwhile, the water-inlet channels are arranged between the fish culture ponds and the crab culture ponds, the water in the fish culture pond enters the crab culture pond through the water-inlet channel; the advantages of the invention are as follows: due to mixed cultivation of aquatic plants in the crab culture pond for the invention, aquatic plants are ensured to exist during the whole breeding season, and in situ repair function of the culture pond is enhanced; the invention utilizes smaller tail water purification area to obtain purified water of good quality, is economic and practical.

The invention discloses a campus rainwater ecological cleaning integrated-processing method and an ecological cleaning integration system. The method comprises the following steps: 1) establishing an integration processing system for processing campus rainwater in a campus in advance; 2) selecting a proper processing method according to ecological purification conditions of different water bodies in the campus; and 3) finally collecting rainwater processed in the step 2) to a landscape water body in the campus, or discharging into a river in the campus, or collecting into the underground water layer of the campus. The system comprises an undercurrent type artificial wetland system for processing campus initial-stage rainfall runoff, a shoreland-area closure system for processing campus storm runoff, an ecological floating bed-aeration plug-flow system for processing campus natural revetment river water body, an artificial waterweed-micropore aeration system for processing campus hard revetment river water body, and a biomanipulation-fountain aeration system for processing campus enclosed pond water body. The beneficial effects comprise that the purification effect is good, the cost is low, the resource utilization rate is high and the purification effect is lasting.

The invention discloses a fresh water shrimp culture method, which comprises the steps of weed culture, shrimp postlarvae selection, stocking time selection, and control during shrimp postlarvae culture. The step of control during the shrimp postlarvae culture comprises the steps of: controlling waterweed coverage rate and water body transparency: when the fresh water shrimp culture is in the medium term, particularly fresh water shrimps enter autumn-propagation season (August and September in Yangtze river basin), the waterweed area is controlled to be 40 to 50 percent of the water body area, the transparency is controlled to more than 40 centimeters, and shrimp postlarvae is difficult to survive due to insufficient plankton bait; and killing the autumn-propagation shrimp postlarvae by skillfully using quick lime: during culture, the growth and development condition of the shrimps is frequently observed, particularly when the fresh water shrimps enter the autumn-propagation season (August and September in Yangtze river basin), the egg hatching condition of precocious female is observed, and when eggs of most ovigerous female become grey or transparent or zoea is hatched out, 10 to 14g of quick lime is used for each cubic meter of water body, the quick lime is sprayed to all the pond in six days, and afterwards the quick lime is used once each week to kill the autumn-propagation shrimp postlarvae. The technical measure can reduce 70 to 90 percent of autumn-propagation shrimp postlarvae.

The invention relates to a method for culturing finless eel and freshwater crayfish in a pond, which includes (1) selecting pond or low-level pond, or opening ditches such as 'curve', 'well' or 'field' font, keeping sluice above 1.5m in the pond or ditch; (2) clearing and sterilizing the pond, keeping the water depth for 30cm, fertilizing and planting aquatic; (3)the net box of finless eel being an open style, planting water peanut in the box; (4) regulating water quality by stocking silver carp and bighead carp, putting healthy fingerlings of the freshwater crayfish one off in the last decades of April (100kg / 666m2), or putting mature fingerlings of the freshwater crayfish whose female and male ratio is 2:1 in the autumn; (5) stocking young finless eels from the last ten-day of April to the first ten-day of May or the last decades of July (1kg / m2); (6) feeding food per day, the amount of which are 5-8% of the weight of freshwater crayfish; (7)subduing feeds after young finless eels are put in the box and hungry for 3 days, the weight ratio of minced earthworm or fresh fish and finless eel is 5:1, 4:1, 3:1 and 2:1; (8) strengthening water quality management, fertilizing management and prophylaxis osamu work of the aquaculture water and inside the net box.

The invention provides a crayfish-rice co-culture ecological culturing and breeding method. The method is characterized by particularly comprising the following steps of 1 rice field preparing, 2 rice field disinfecting, 3 aquatic plant transplanting, 4 crayfish seed stocking, 5 crayfish seed managing and 6 crayfish seed fishing. According to the method, a batch of crayfish seeds are harvested in March to April, the first batch of commercial crayfishes are harvested in April to May, and the second batch of commercial crayfishes or parent crayfishes are harvested in August to September; the culturing limitation of the prior art is reduced, ecological resources are utilized, the problem that in the existing mode, the yield is low, and the death rate is high are avoided, combined and cooperative culturing of ecological rice and crayfishes is achieved to a great extent, the crayfish culturing yield is increased, and the crayfish culturing quality is improved.

The invention relates to a crawfish organic ecology culture method comprising the following steps: building two or three of the following modules: a pond culture module, a rice field culture module and a lotus rhizome field culture module; digging gutters in rice field culture units and lotus rhizome field culture units; using separation dams and trenches to build a circulating water system; planting waterweeds in the pond; using a sectioned catching and stocking rotation mode to culture crawfish in the pond; carrying out crawfish-rice organic polyculture in the rice field culture units, and transferring crawfishes to the gutters or other modules for re-culture in a rice field sorting process; carrying out crawfish-lotus rhizome organic polyculture in each lotus rhizome field culture unit, and transferring the crawfishes to other modules for re-culture in a lotus rhizome leaf initial grow period. The crawfish organic ecology culture method can realize nutrients cycle complementation utilization, can ensure water body oxygen dissolving, can prevent medicament application, and can realize crawfish nature transition transfer between rice field culture and lotus rhizome field culture, thus finally realizing high yield, high quality and environment friendly organic ecology culture.

The invention belongs to the field of animal cultivation, and particularly relates to a ricefield eel culturing method. According to the ricefield eel culturing method, the surviving rate, growth speed and quality of ricefield eels are high. The ricefield eel culturing method includes the following steps that a pond which is good in water quality, free of pollution and quiet is selected; the pond is cleared up manually for clearing redundant sludge, and sludge with the depth of 20cm remains; thorough disinfection is carried out on the pond through quick lime, water is changed thoroughly once after the disinfection, and water grass is planted in the pond; earthworms are thrown in the pond and perform mass propagation after about 20 days; ricefield eel fries are put in the pond; in the process of ricefield eel culturing, fish bait is thrown according to the amount of the earthworms in the pond, fish bait throwing is not needed if the earthworms are sufficient, if the earthworms are not sufficient, the fish bait is thrown for 1-3 times every day according to conditions, and the fish bait mainly contains little fish, fly maggots, yellow mealworms and the like; after cultivation for one and half years, the ricefield eels are fished for sell through a fishpot.

The invention relates to a medicament for fast preventing the malignant float grasses and the water algae and the application thereof, belonging to the pesticide formulation technical field, which is characterized in that the medicament comprises from 40% to 90% of a plant vinegar fluid, from 5% to 35% of an organic acid, and from 1% to 20% of pesticide addition agent, the plant vinegar fluid is either a bamboo vinegar fluid, a wooden vinegar fluid, and (or) grass vinegar fluid, the organic acid is one of or a mixture of more than one of a formic acid, an acetic acid, a propionic acid, a 2-methyl propionic acid, an ethyl acetic acid, a 4-hydroxy ethyl acetic acid, a pentanoic acid, a benzoic acid, a 2,6-hydroxy benzoic acid, a 3-hydroxy-4-methoxy benzoic acid or a 3-methoxy-4-hydroxy benzoic acid. The medicament has the advantages of fast destroying the chlorophyll, stopping the plant to do the photosynthesis, commonly killing the water algae in a half hour and the float grass in three hours by spraying, having low production cost, strong killing capability, wide adaptable temperature range and pH value range. The active component of the invention has the advantages of being the natural-occurring substance, no corrosion, nonirritant, safe use, and reliability, easy biodegradation, and no secondary pollution.

The invention provides an artificial simulated aquatic weed manufacturing method. The invention adopts the method that natural aquatic weed is used as a template, a platy soft foam plastic floating type framework in a middle layer is used as a solid bracket, mixed fiber layers are bonded on the both sides of the surface, and therefore an artificial simulated aquatic weed main body is manufactured by adopting the three-layer composite structure; a plurality of floating balls are arranged at the upper end of the artificial simulated aquatic weed main body equidistantly, a balance sand bag is arranged at the lower end, and therefore the artificial simulated aquatic weed is manufactured. The mixed fiber of hydrophilic fiber and hydrophobic fiber is used as a biological film carrier, the surface characteristic and the physicochemical index parameter of the manufactured artificial simulated aquatic weed are good, the specific surface area is large, the hanging of the biological film is perfect, and the operating performance is steady; the structural design is reasonable, the installation is simple, the production cost is low, and the application is diversiform.

The method for increasing commodity rate of breeding black shrimps in the invention includes selecting excellent seeds, postponing the time of shrimp postlarvae stocking properly and feeding some chubs, bighead carps, etc., controlling the coverage rate of float grass and the transparency of water, and making use of calces. When in the metaphase of breeding black shrimps, more particularly, when the black shrimps are in the propagation season of Autumn, the area of float grass is controlled to be 60-70% of the water area, the transparency is controlled to be 40-50cm. In the propagation season, when the color of oogenesis of shrimps becomes grey and transparent, or flea-shape larva is hatched out, calces of 10-20g per stere is used for spraying the whole pool within five days, then the method is used every week and is totally used for 7-10 times. By increasing the measures of controlling the coverage rate of float grass and the transparency of water and making use of calces, neoteny of black shrimps and over propagation are controlled, the growth of grown shrimps is promoted, and the commodity rate of black shrimps can reach 90% at the end of the year. The method of breeding black shrimps has the advantages of easy and convenient operation as well as easy popularization and use, etc., which is a good method for effectively increasing commodity rate of breeding black shrimps.

The invention discloses a method of culturing lobsterlings in fresh water, comprising: excavating an enclosed culture channel at a water inlet of a rice paddy; secondly, forming a culture region around the channel by mesh, building anti-escaping facilities at the water inlet and the water outlet of the rice paddy, for preventing external infraction and self escape of shrimps seedlings; thirdly, applying enough ground fertilizer, cultivating the parent shrimp after and before transplanting rice seedlings, sterilizing the channel before pasture, planting water weeds in the channel after one week; fourthly, culturing the parent shrimp of 10-22 kg per mou, and channel density 5-25 / m2; fifthly, catching for sale. The invention method is simple, convenient in operation, low in cost, high in production and good in quality.

The invention belongs to the technical field of wastewater treatment, particularly relates to a treatment method of wastewater anaerobic digestive fluid in a pig farm. The invention uses a water hyacinth pond for removing most of the ammonia nitrogen of wastewater anaerobic digestive fluid in a pig farm, later adopts large-scale emergent aquatic plant pond of water bamboo, reeds, and the like, combines artificial float grass and functional microbial inoculum for purifying the yielding water again so as to lead the concentration of ammonia nitrogen in the yielding water to be further reduced, and then adopts an aquatic animal breeding pond with landscape value for purification treatment. The invention not only can achieve standard discharge of the intensive pig farm wastewater anaerobic digestive fluid, but also can create economic benefits by the aquatic economic plants and aquatic animals in the pond and achieve water resource.

The invention discloses a method for fry and fingerling rearing of aquatic animals, particularly a synchronized fry and fingerling rearing method of Procambarus Clarkii and an application thereof. The method is based on the mating and spawning habits of Procambarus Clarkii, and controls the synchronous development of parent prawns, fry production time, breeding density and fry and fingerling specifications by modifying the fry and fingerling rearing pool, transplanting aquatic weed and strictly controlling water level in fall and winter.

Bionic water grass and its water quality reinforcement cleaning method relates to micro pollution source water treatment technology, which applies to resource-field water quality reinforcement cleaning technology to eutrophication lakes and micro pollution channels, etc. In Bionic weeds, the floating ball (1) and ecological fish reef (5) was connected flexibly with nylon cord (4),which make them sway with flow by 360degree, nylon cord coat has plastic pipes which can prevent Bionic weeds twisting together; there are many discs (2) which concatenate to nylon cord between the floating ball (1) and ecological fish reef (5) individually. The water quality reinforcement cleaning method of bionic water grass is: bionic water grass was released directly to eutrophication or micro pollution water mass, release denseness based on pollution degree of the lakes and channels, the average volume about 20%; The top of bionic water grass use floating ball to float on the water surface, the bottom fixed to ecological fish reef (5) to prevent its dispersion, the length of nylon cord (4) a little longer than the stage height.

The invention discloses a method for cultivating submerged plants and a basin bowl model device. The method comprises the steps of (1) selecting varieties of aquatic plants; (2) washing and arranging the aquatic plants; (3) adding 3-4g agar powder in per 100ml water, heating to 85-100 DEG C to completely dissolve the agar powder, and cooling to 40-45 DEG C for application; (4) adding gravels in the basin bowl model device, inserting to-be-cultivated plants, rapidly pouring the agar liquid cooled to 40 DEG C into the basin bowl, and pushing an ejection push rod after 5 minutes to eject a plant-agar base plate; (5) throwing the aquatic plants; (6) final-period management. The basin bowl model device comprises a basin bowl body and an ejection push plate, wherein the ejection push is placed at the bottom center of the basin bowl body; a metal pushing rod welded at the center of the ejection push plate penetrates through a central small hole of the basin bowl body. The cultivating method is feasible; the device is simple; the natural nontoxic agar base plate does not limit the growth of the plants, and can be gradually harmlessly degraded; the survival rate of the aquatic plants can be up to 98.4%; and the submerged plants can be rapidly and efficiently cultivated.

The green technique for cultivating dryland lotus to obtain the lotus root incldues such steps as building up an impervious pond, spreading the mixture of mellow soil ,organic fertilizer, and soybean dregs, pouring pollution free underground water until the water depth is 7-10 cm, transplanting by row space of 2-3 m, herbiciding and other management, keeping the water depth to 10-15 cm in lotus root forming period, applying organic fertilizer and irrigating until water depth is 25-30 cm. Its advantages are high yield and quality of lotus root, and easy management.

The invention relates to a water treatment technology of rivers, lakes and landscapes, in particular to a comprehensive treatment method of water eutrophication by anti-algae insects, which solves the problem of algae pollution of landscape water. The method comprises the following steps: selecting the anti-algae insects and then placing in water for raising; taking a sewage sample from a water area to be treated; throwing the anti-algae insects which grow stably into the sewage sample, adaptively screening, and then throwing the selected anti-algae insects into the water according to the standard that the first throwing quantity in the transformed water is not less than 1*105-2*105 / m<3>; according to the effect of eliminating algae in the water, throwing the anti-algae insects for the second time; after the water is improved, implanting submerged plants into the water; and after the submerged plants grow and reproduce, throwing a certain amount of aquatic organisms such as fish, shrimp and the like into the water to form a complete underwater ecosystem. The method of the invention hits the key technical point of water treatment by the anti-algae insects, thus achieving good initial effect and faster effect and speed of removing the algae; and the transparency of the water is rapidly improved, which is beneficial to growth of waterweeds.

The invention relates to a health maintenance agent for waterweeds in an aquaculture pond of freshwater shrimps and crabs, belonging to the technical field of aquaculture. The health maintenance agent is characterized by comprising the following components in parts by weight; magnesium sulfate, potassium chloride, ferrous sulphate, boric acid and compound sodium nitrophenolate are weighed according to the percentage and uniformly mixed at the normal temperature; the components are uniformly mixed with the monocalcium phosphate, sodium humate, polyaluminum ferric silicate and zeolite powder according to the percentage and finally packaged. The invention is convenient to use and not influenced by the environmental condition and has low dosage; after use, the invention quickly becomes effective, has stable effect, and is capable of quickly improving the growth of the waterweeds in the pond and removing the sludge and attachments on the surfaces of the waterweeds, so that the waterweeds have developed root system, clear surface and dark green color and are healthy and stable. The contents of nitrogen and phosphorus in the pond water are reduced effectively; the environmental quality of the pond is improved; the survival condition of shrimps and crabs is improved, the calcium source of water is supplied reasonably, and the growth and the quality of the shrimps and crabs are improved.

Provided is a greenhouse cultivation method for butterfly orchid. Aquatic plants are washed by clean water and disinfected and sterilized, so that a butterfly orchid nutrition pot substrate is obtained; bud arrows of the butterfly orchid are cut and then placed in a tissue culture chamber to be planted, after the bud arrows are cultured to seedlings through tissue culture and are divided, the temperature, humidity and illumination are controlled, and the bud arrows enter a root cultivation period after a tissue culture period ranging from 12 months to 13 months; in the root cultivation period, when three roots of the butterfly orchid are completely filled, the butterfly orchid is transplanted into a transplantation pot with the diameter of 3.0 cun, when 4-5 roots grow to be filled, the butterfly orchid is transplanted into a transplantation pot with the diameter of 3.5 cun, vegetative growth cultivation is carried out, and the butterfly orchid enters an arrow urging period after the root cultivation period ranging from 5 months to 6 months; in the arrow urging period and a flower growing period, the temperature, humidity and illumination are controlled, cultivation time of the whole arrow urging period ranges from 45 days to 60 days, and cultivation time of the whole flower growing period ranges from 5 days to 8 days. The method has the advantages that the survival rate of the butterfly orchid is high and more than 90%, the cultivation period of the butterfly orchid is shortened, and the method is suitable for greenhouse cultivation of the butterfly orchid in the north.

The invention provides a bionic aquatic weed for water quality purification of a black and odorous river channel. The bionic aquatic weed comprises a floating block, biological fillers, a slow-release bacteria agent pack, a slow-release oxygen pack, a balance weight and a rope. The bionic aquatic weed is fed into water and is capable of continuously releasing a bacteria agent and oxygen to form microbial populations on the biological fillers so as to remove pollutants in the water body of the black and odorous river channel. The bionic aquatic weed is simple in structure, convenient to implement, stable to operate and low in investment and operation costs and can take effect rapidly.

The invention discloses an ecological floating bed. The ecological floating bed comprises a floating bed frame, and a first box body layer fixed below the floating bed frame, wherein a second box body layer with an opened top surface is hung below the first box body layer; a plurality of through holes are formed in both bottom and sidewall of the first box body layer; a plant planting substrate is filled in the first box body layer; broken aerated concrete is filled in the second box body layer; the plant planting substrate comprises the broken aerated concrete, a plant fertilizer, waste carbonized bamboo particles, and limestone fine gravels, which are filled in sequence. According to the ecological floating bed, the planting substrate in the first box body, and humus produced by the planting substrate consumed in the production of a plant and microorganisms can expose from the through holes and then be scattered into the second box body, thus the growth of a microbial film can be promoted, and a certain food and water environment is provided for benthonic mollusk, fish and other aquatic animals and induces the breeding; intelligent bionic aquatic plants are also fixed to the floating bed frame, which can perform aeration and oxygenation on water mass to increase the oxygen content in the water mass.

The invention discloses a combined method for breeding weever in a runway and intercropping crayfish in a paddy field. The method of breeding the weever in the runway and a method of breeding the crayfish in the paddy field are combined. After residual feeds and excrement of the weever in the breeding runway are centralizedly absorbed, the residual feeds and excrement are drained into the paddy field for intercropping the crayfish through pipelines, so that the crayfish takes the residual feeds, the paddy field absorbs the excrement, and the water quality is purified. Besides, the water body rich in nutritive matter like nitrogen and phosphorus is drained out of the runway, and is pumped into paddy field ditches and the paddy field through a waterwheel aerator, so that aquatic plants and rice in the paddy field ditches absorb the nutritive matter like nitrogen and phosphorous in the water body and purify the water quality. Through the combination, the water body of the paddy field becomes flowing water, the growth of the crayfish is facilitated, the waste in the breeding runway is turned into things of value, the water body of a purification area outside the runway is also fully utilized, and zero-drainage of breeding wastewater is achieved; meanwhile, land is fully utilized, and the maximal yield is achieved. It can be achieved that the annual yield of 50 mu of land is 473 Kgof rice, 229 Kg of crayfish and 51,838 Kg of the weever, and the average benefit per mu reaches 8,810 RMB.

The invention provides a method for restoring water bodies in black and stinking rivers and relates to a method for eradicating the black and stinking problems of rivers and restoring the water bodies. According to the method, the water bodies of the black and stinking rivers are restored by utilizing an in-situ treatment manner based on a bionic water plant- microbe preparation-chub-clam-earthworm composite system and a biological oxygen-enriching technique. The method has obvious effect of removing nitrogen and phosphor nutrient salt and has a positive enhancement effect on the aquatic ecosystem of the river. The method is an effective method for restoring the water bodies in black and stinking rivers, and has the advantages of simpleness in component form, low cost, low operating expense, no secondary pollution and safety.