95results about How to "Improve the habitat" patented technology

The invention discloses a hard reinforced concrete revetment slope biological repairing method, which is characterized by comprising the steps of: roughing a concrete revetment and constructing drainage ditches at set intervals; digging a water collecting tank on one side of the cross of the revetment and a road, reserving an opening at the joint of the drainage ditch and the water collecting tank, and constructing a watertight concrete overflow bank; filling gravels in the water collecting tank and the drainage ditches; and welding earthwork grids by high-density polyethylene stripes on the protection slope, laying gravel cushion coats in the earthwork grids, and finally pouring biological slurry. The method has the advantages that: the whole project is stable and safe; rain flows into the water collecting tank and passes through grave areas, non-watertight sand-free concrete, a slope cushion coat, plant roots and the like to seep into rivers, so water quality is improved to a relatively large extent; when rainfall runoff is overlarge, the rain overflows from the overflow bank and passes through the graves of the drainage ditches, so the water quality is also purified to a certain extent, meanwhile the slope is protected; the biological slurry poured onto the slope is prepared from biological materials, and has certain anti-erosion strength and can be used as a substrate for plant growth, so the cost is low and the operation is simple.

The invention discloses an ecological percolating type water purification groin system, which has a trapezoidal structure. A biological strengthening purification area is formed in the middle of the system, and block stone is arranged on the two sides; a mixture of sand, broken stone and soil is arranged between the steel mesh cobble stone and the block stone; submerged plants and planting bags are arranged on the outer surface of the block stone, emergent aquatic plants are arranged on the top, and a broken stone hardcore bed is arranged at the bottom; a cobble filtering body is arranged on the broken stone hardcore bed; the surface layer of the biological strengthening purification area is a reinforcing dam top; and the two sides of the reinforcing dam top are provided with stone steps. The invention has the advantages that: relatively good water purification effect is realized; the purification body can realize batch production in plants; and the pollutants in the water flow and the pollutants adsorbed on the gravel surface are absorbed and decomposed through the joint effect of the plant root system and a microbial film. The block stone can prevent the water flow from eroding the groin foundation and enhance the stability of the side slope and the resistance against storms; and the submerged plants in the stone area can purify the water in rivers and provide a good habitat for the growth of the aquatic plants in rivers, while appearing as a landscape.

The invention discloses a sectored multi-step ecological buffer type revetment system. The revetment system is provided with at least four levels of steps, blocking walls are sequentially arranged on the outer sides of the steps, one plant planting zone is arranged in the blocking wall of each level, soil matrix is arranged in the upper layer of each plant planting zone, yellow sand, ceramsite, soft rock and zeolite are sequentially in the lower layer of the plant planting zone of each level, and emersed landscape plants and submergence-tolerant plants are arranged in the plant planting zone of each level; hydraulic drop platforms are sequentially arranged in the corresponding positions of spaced plant planting zones of the blocking walls; and one guide plate is arranged between each blocking wall and the corresponding hydraulic drop platform; the plant planting zone of the first level is connected with a farmland drainage canal and is sectored towards the downstream to form a hydraulic-drop type hierarchical structure in an open sectored shape, the sector radius is 5-8 m, and the central angle is 45 degrees-75 degrees; and the blocking wall of the last level is connected with a river channel. The sectored multi-step ecological buffer type revetment system not only has the efficacies of protecting river channel side slope, and realizing flood water drainage and water and soil conservation, but also has good purification and landscape effects.

The invention relates to a movable plant wall, belonging to the technical field of a plant wall. The movable plant wall comprises a top cover, a back plate and a water tank, wherein the top cover, the back plate and the water tank are connected with one another by a left side plate and a right side plate in a matching way; a plant planter is arranged between the left side plate and the right side plate; the movable plant wall is characterized in that more than one layers of water curtain cloth are arranged at the front side of the back plate; a support piece is arranged in the front of the water curtain cloth; the support piece is used for fixing the plant planter; more than one air filtering layers are arranged under the top cover in a matching way; the top cover is provided with a fan and a spray device; the spray device is connected with a water pump in the water tank by a water pipe; a nozzle of the spray device is arranged at the upper part of the water curtain cloth; the top cover, the water curtain cloth, the left side plate, the right side plate and the back plate are connected together in a matching way, so that a closed space is formed. After the movable plant wall is adopted, an environment which is capable of maintaining the air humidity and does not cause water accumulation of a matrix can be created, and the movable plant wall is beneficial to the growth of plants; the movable plant wall has the advantages of being low in cost, convenient to assemble, fresh in air, capable of releasing a great deal of negative oxygen ions, and the like.

The invention discloses an experiment device used for researching effects on fish behaviors imposed by light and the application thereof. The experiment device comprises a water tank, a double-layered sleeve, a transparent waterproof glass reinforced plastic lampshade , an LED lamp pipe set, a motor, a circuit control system and a camera. According to the invention, by arranging a PVC cylinder of the double-layered sleeve, the experiment is carried out when fish freely swims in an experiment water tank, so via light transmitting holes in the PVC cylinder, experimental fish can freely swim in and out of the cylinder, and an ideal habitat is provided for the experimental fish, thereby simulating the free choices to light wave length and illuminance of the fish in natural sea and industrial aquaculture conditions in a more real manner. Thus, data deviation caused by harmful effect to the fish behaviors by improper structure and operation is avoided. Via the experiment device, many kinds of experiments on effect on fish behaviors imposed by light can be well finished, and the experiment device can satisfy many experimental objectives and requirements for researching effect on fish behaviors imposed by light.

The invention relates to a method for forming an ecological embankment of vertical revetment live branch bundles. The method is characterized in that a row of wood piles or concrete imitative wood piles is driven along the bankside toe line of a riverway, twigs of willows, alders or black poplars are bunched into live branch bundles, gravels, pebbles, haydites and zeolites are filled in the live branch bundles, and the live branch bundles are arranged between the wood piles or the concrete imitative wood piles and the bankside of the riverway parallel to the riverbank. Therefore, the problems of renovating vertical revetment waterfront plants along the riverway and constructing an ecological embankment are solved. The live branches used by the embankment have good tolerance to water logging, thereby quickly budding and forming a vegetation system, creating good living environment for riverbank living things, and beautifying riverbank landscape, and on the other side, plants, purifying filter materials and surface-attached microorganisms have better purifying effects on pollutant and improve the water quality of the riverway. The embankment is very convenient to construct, maintain and manage, and has better transformation and application prospects of the ecological renovation of the vertical revetment.

The invention discloses a structure method of a biological fertilizer island sand-stabilizing sand-protecting barrier. The method comprises the technical steps of forming composite bodies through a certain number of foundation sandbags according to various shapes, enabling a range of the sizes of the composite bodies to be 2-5m, enabling a range of the size of an arrangement mode unit to be larger than 20m and the like. Matrix additives in the foundation sandbags are composed of moving aeolian sandy soil, powder-shaped decomposition sheep manure, smashed and decaying plant straw or corncobs, peat, clay, water-retaining agents, multi-strain biobacterial manure and plant seeds with germination capacity. The foundation sandbags and composite sandbags are arranged in shapes of an island shape, a straight line shape, a crescent moon shape and the like on the surface of a moving dune according to different arrangement modes, and the sand-protecting barrier which integrates functions of wind erosion control, local soil environment improvement, vegetation recovery and the like into a whole and is used for managing the moving dune is formed.

The invention discloses a wood-vinegar-containing biological compound fertilizer. The biological compound fertilizer is mainly prepared from the following raw materials in parts by weight: 10-15 parts of microbial inoculant, 20-30 parts of urea, 5-10 parts of diammonium phosphate, 10-20 parts of potassium chloride, 4-8 parts of calcium magnesia phosphate fertilizer, 10-15 parts of biochar, 1-3 parts of nano titanium dioxide, 0.5-1.5 parts of zinc sulfate, 0.2-1 part of copper sulfate and 2-5 parts of wood vinegar. The biological compound fertilizer is capable of enhancing the utilization ratio of the fertilizer, saving the raw materials and increasing the crop yield, and is also capable of supplying comprehensive nutrients required by crop growth, regulating plant growth and development, killing and resisting bacteria, expelling pests, effectively lowering the disease and pest morbidity and reducing the pesticide use.

The invention discloses a rice and loach mixing planting and breeding method capable of stabilizing the grain income and increasing the fishery income. The method includes the steps: selecting a rice field, digging temporary breeding ditches, circular ditches and filed ditches, and allowing communication among the ditches; paving plastic thin films and mud on the bottom of the temporary breeding ditches, arranging a sunshade net over the temporary breeding ditches; increasing the height and the width of ridges, reinforcing the ridges, and additionally arranging escape-proof facilities; transplanting rice seedlings in the first ten days of June, injecting water, and then stacking fermented decomposed chicken manure; disinfecting the rice field after the rice turns green, stocking disinfected young loaches; feeding the loaches with baits twice every day, wherein the feeding amount is 2-3% of the total body weight of the loaches; keeping the water depth of a field surface in 13-20 cm, and keeping the water depths of the circular ditches and the temporary breeding ditches in 40-65 cm; changing water once every 10-15 days in midsummer, wherein the water changing amount is 25-33% of the water amount of the rice field; adding quicklime or bleaching powder to water once every half a month; and catching the loaches to be sold, and harvesting the rice.

The invention relates to an ecological bank protection method of a riverway roofthrust position. The method comprises the steps of constructing a riverway roofthrust ecological revetment at the riverway roofthrust position; arranging a row of pine fences along a bank foot line of the riverway roofthrust position; laying geotextiles at the side against water of the pine fences; arranging ripraps at an included angle between the side toward water of the pine fences and a riverbed; laying crushed stone cushions on a slope; stacking blocks of stone gabions on the crushed stone cushions; fixing the blocks of stone gabions on the bank slope with pine spiles; clamping willow bundles and wide-leaf grass bundles between adjacent blocks of stone gabions near a flood stage of the riverway; clamping emerged plant roots and humid soil in the block of stone gabions near an ordinary water level of the riverway; and clamping submerged plant seeds and the humid soil in the blocks of stone gabions near a low water level of the riverway. The method of the invention has the advantages of building a fine habitat environment for riverbank living creatures, creating a riverbank green barrier, and beautifying riverbank landscape. Plants, stones and microorganisms adhered thereto have a purifying effect on pollutants, intercept source pollutants flowing into the river and improve water quality of the river.

The invention provides a self-controlled movable plant wall, and belongs to the technical field of plant walls. The self-controlled movable plant wall is characterized in that a controller is included, the controller is connected with a fan, a water pump, a heater, a displayer, a button group, a temperature sensor, a humidity sensor, a liquid level sensor and a leakage protector in a matching mode, the temperature sensor and the humidity sensor are arranged between plant leaves and base materials, and the heater is arranged on the back portion of the base materials. According to the self-controlled movable plant wall, light, temperature, water, air and nutrients needed in growing of plants are controlled, and surviving and growing of the plants are guaranteed. The self-controlled movable plant wall has the advantages of being capable of being assembled in a modularized mode, convenient to move, easy to cultivate, energy-saving, smooth in air circulation in the roots of the plants, long in plant survival time and good in greening effect.

The invention relates to a rapid recovery method of a natural river landscape of a city. Firstly, the water width and the water depth of a river are measured, the flow cross section of the river is calculated, under the condition that original hard banks are remained, a riverbed is excavated according to the characteristics of the cross section of an original riverbed, the river flow volume of the excavated riverbed equals to the river flow volume of the original riverbed, and the flood carrying capacity of the river is remained; and then, an earth work generated in the excavation of the riverbed is refilled between the hard banks and a riprap slope, an earth slope with a cross section progressively increasing from top to bottom is formed after roller compaction is conducted. Compared with the prior art, hard slope protection does not need to be removed, on the basis of the original width of the river, the riprap slope and the earth slope are built, a structure with a shallow and a deep pool is formed, diversified river local terrains are created relying on the natural evolution of the river, the biological habitat of the river is improved, the diversity of a water flowing and water ecological system is recovered, and the rapid recovery of a river ecological system is achieved.

The embodiments of the invention disclose a method for treating landscaping solid organic waste by biomass carbonization and a two-stage fermentation combined process. The method includes the following steps: separating branches, trunks and roots from landscaping solid organic waste to obtain a mixed material of the branches, trunks and roots and remaining materials; crushing the mixed material and carbonizing the mixed material to obtain wood tar, pyroligneous liquor containing condensed water, biomass charcoal and combustible gas; crushing the remaining materials and evenly mixing the remaining materials with livestock manure, water, the wood tar and the pyroligneous liquor containing condensed water to obtain a fermentation material; and carrying out the two-stage fermentation combinedprocess treatment on the fermentation material to obtain basic organic fertilizer. The method firstly carries out classification and then carries out treatment by combination of multiple processes, can make good use of complementary advantages of the multiple processes to prepare a variety of resource utilization products, realizes the balance of energy supply and demand, effectively shortens fermentation time, and improves fermentation efficiency and final product quality.

The invention relates to a method for preparing a shell square reef, which comprises the following steps of: (a) constructing the base, support column and beam structures of the shell square reef by selecting reinforcing steel bars with appropriate sizes; (b) pouring concrete towards the constructed steel structure of the shell square reef; (c) when the shell square reef is poured to be formed and the concrete on the surface of the shell square reef is not dried, inserting shells into the surfaces of the support columns and the beam; and (d) drying the concrete completely for forming to obtain the shell square reef which can be used. The invention also provides the shell square reef. The method has the advantages that: the shell square reef is manufactured by using reinforced concrete as a raw material, is provided with the base, and is high in stability and capacity of impact resistance, drifting resistance and overturn resistance; the shell square reef can generate shadows, adsorb algae and shellfish and attract fish to spawn or avoid stormy waves and natural enemies and provide excellent habitats for the fish to fulfill the aims of protection, proliferation and the improvement of fish catch.

The invention discloses an ecological polyculture method of Tor brevifilis brevifilises and river crabs. The ecological polyculture method comprises the following steps: cleaning a polyculture pond, digging an annular ditch in the polyculture pond, and arranging anti-escape devices on the surrounding; solar irradiating the pond, and sterilizing with quick lime; draining, and applying a compound fertilizer and a fermented organic fertilizer; planting water plants in the polyculture pond, and applying the compound fertilizer; stocking 450-550 pieces of young crabs with weights of 10-15g in each acre in February; stocking 250-350g of larva snails in each acre in early April; stocking 2300-2700 pieces of Tor brevifilis brevifilises with specifications of 3-5cm in each acre in late May; after stocking the river crabs, feeding the river crabs with a complete formula feed in June, and feeding the river crabs with a plant feed and the complete formula feed in July and August, feeding the river crabs with trash fish and the complete formula feed in September and October, and feeding the Tor brevifilis brevifilises with a pellet feed in the whole process; and managing the water quality and controlling diseases.

The present invention relates to a biochemical treatment reactor for waste water containing quinolone antibiotics, the reactor is composed of CAF (Composite Anaerobic Filter) and FBBR (Fixed Bed Membrane Bioreactor). Such pollutants are decomposed into small molecular compounds, and then degraded by microorganisms in the aerobic reactor, so as to achieve the purpose of removing such pollutants. By improving the traditional reactor, the present invention not only solves the problem that antibiotic wastewater containing quinolone compounds is difficult to biodegrade, but also solves the problem of mud run-off and difficult acclimation in traditional reactors, and opens up a new path for the treatment of this type of antibiotic wastewater new way.

The invention discloses a finless eel rice field integral planting and breeding method capable of stabilizing the grain income and increasing the fishery income. The method includes the steps: selecting a rice field, where a land having the pH of 4-7 is used as the rice filed; constructing the rice field, increasing the height and the width of ridges of the rice field, reinforcing the ridges, and additionally arranging escape-proof facilities in a drainage opening; flatting the rice field, and digging drainage ditches; turning over the rice field, drying the rice field in sunlight, smashing soil, and then applying a base fertilizer; applying fermentative chicken manure to the drainage ditches and injecting water from the last ten days of March to the first ten days of April; planting the rice; selecting finless eel fries; stocking the finless eel, disinfecting the selected finless eel fries, and then putting the selected finless eel fries into the rice field; feeding the finless eel with fodder, feeding the finless eel with the fodder once every day during 1-2 weeks after finless eel stocking, wherein the feeding amount of the fodder is 4-8 wt% of the body weight of the finless eel; and then feeding the finless eel with the fodder for 3 times every day, wherein the feeding amount of the fodder is 2-5 wt% of the body weight of the finless eel; managing the water quality, changing water once every 2-3 days in midsummer, and changing water once every 7-10 days in the rest time, wherein the water changing amount is 1 / 3 of water in the rice field; and controlling diseases.

The invention discloses a water body circulating purification biological filter bed for high-water-level prawn culture. The water body circulating purification biological filter bed comprises a filter bed which is arranged at top of water body of a culturing pond and a water pumping pipeline which is arranged in the water body of the culturing pond. The top end of the water pumping pipeline penetrates the filter bed and is connected with a water distributing pipeline. The water distributing pipeline is arranged above the filter bed in a longitudinally and horizontally staggered manner. The bottom end of the water pumping pipeline is internally provided with an oxygenating aeration pipe. The oxygenating aeration pipe is connected with an aeration oxygenating device through an air pipe. Through the water pumping pipeline and the oxygenating aeration pipe, water body circulation of the culturing pond is realized in an air floatation water pumping manner. The water body which contains a deposit is pumped to the upper filter bed through the water pumping pipeline; and through filtering purification of the filter net, the water body flows back into the culturing pond, thereby realizing purification of the water body. Furthermore, sufficient mixing between upper-layer water body and lower-layer water body in the culturing pond can be realized, and furthermore the filter bed at the top of the water body of the culturing pond can perform a sunshielding function, thereby supplying a good inhabiting environment for the prawns and realizing benefits for growth.

The invention discloses a rice and crab symbiotic cultivation method. The method includes cultivation field selection, rice sowing, juvenile crab placing, bait feeding, water changing, rice harvesting and crab capturing. According to the method, crabs are cultured in the field by the theory that the rices and the crabs benefits mutually and are symbiotic, the originally contradictory planting and cultivation are combined, different two production occasions are combined, the original field ecosystem is turned to be more favorable, the novel ecosystem established manually is utilized fully, the effects are played independently, the juvenile crabs are capable of removing weed in the fields and eating pests, the excreta can be used for fertilizing the soil, and the growth of the rices is promoted; the rices supply rich natural baits and fine habitat for the crab growth, mutual benefit is realized, and the benign circulation is formed.

The invention discloses a soil restoration agent with a heavy metal pollution treatment function and a fertilizing function and a preparation process of the soil restoration agent. The soil restoration agent is mainly prepared from the following raw materials in parts by weight: 260 to 310 parts of organic fertilizer, 25 to 31 parts of microbial agent, 0.03 to 0.07 part of difenoconazole, 0.05 to 0.1 part of pyrethrum, 0.03 to 0.09 part of rotenone, 0.04 to 0.08 part of chlorothalonil and 0.02 to 0.06 part of lactobacillus plantarum. The organic fertilizer is used as a main raw material, the microbial agent, insecticidal and sterilized vegetable drug and chemicals capable of alleviating the harm of soil heavy metal are added, so that not only can the fertilizer effect of the soil be improved, but also the soil restoration agent can enter the soil deeply to improve the heavy metal pollution and prevent the disease and insect pests.

The invention discloses an embankment landscape and water purification system with aquatic plants arranged in inlaid mode. The embankment landscape and water purification system with aquatic plants arranged in inlaid mode comprises landscape facility support columns arranged at one side of an embankment, a landscape facility footpath is arranged on the landscape facility support column, and an acquatic plant planting frame is arranged at the middle of the landscape facility support column. A submerged plant planting region C, an emergent acquatic plant planting region B and an emergent acquatic plant planting region A are arranged in the acquatic plant planting frame, the submerged plant planting region C is arranged below the landscape facility footpath, the emergent acquatic plant planting region B is arranged on the flow-direction side of the submerged plant planting region C, and the emergent acquatic plant planting region A is arranged on the flow-direction side of the emergent acquatic plant planting region B. According to the inlaid arrangement of the acquatic plant, the content of total nitrogen and total phosphorus in an experimental area can be greatly reduced, the ecological environment of the experimental area can be improved, and the biodiversity of benthonic animals in the experimental area is increased.

The invention discloses a Procambarus clarkii and semilate rice rotation planting method capable of stabilizing the grain income and increasing the fishery income. The method includes the steps: selecting a rice field, and digging circular Procambarus clarkii breeding ditches and field furrows, wherein the total area of the circular Procambarus clarkii breeding ditches and the field furrows is 5-10% of the area of the rice field; increasing the height and the width of ridges, reinforcing the ridges, flatting a filed surface; additionally arranging escape-proof facilities in a drainage opening; transplanting rice seedlings in the rice field in the first ten days of June, wherein the density of the rice seedling is 1.3-1.5 ten thousand / mu; stocking the Procambarus clarkii parents; and performing daily management. The Procambarus clarkii and semilate rice rotation planting method can cultivate the rice and the turtles together, is low in technical difficulty, is small in investment, is low in breeding risk, and is high in return rate.

The invention discloses a micro-flowing-water ecological breeding method for rare fishes in a rice field. The breeding method comprises the following steps of (1) selection of the rice field; (2) rice field transformation, wherein an enclosing ridge is built around the rice field, a water inlet and a water outlet are formed in the enclosing ridge of the two opposite corners of the rice field, then, fish ditches of cross-shaped structures are dug in the rice field, and finally, a feeding breeding ditch communicated with the fish ditches is dug in one side of the rice field; (3) rice planting, wherein manual transplanting of rice seedlings is conducted in rice planting areas in the rice field; (4) fry release, wherein 15 days after transplanting of the rice seedlings, fry are stocked in the feeding breeding ditch, and most of fry of sinocyclocheilus graham, schizothorax taliensis, neolissochilus benasi and spinibarbus sinensis bleeker are stocked; (5) feeding management, wherein after the planted rice seedlings turn green, artificial feed needs to be added into the feeding breeding ditch every day; (6) daily management. The allocation of mixedly-bred fry types is reasonable, planning for the rice field is proper, a scientific feeding mode is adopted, the growth speed of the fry is increased, and the yield of rice is also increased, so that the benefit of mixed fish breeding in the rice field is significantly increased.

The invention discloses a comprehensive planting and breeding method for paddy rice for stabilizing the grain yield and increasing the farmer income and Zhong Ke No.3 crucian carps. The method includes the steps that a paddy field is selected and transformed; the paddy field is selected and hardened, and a bait-throwing site is set; a water inlet and a water outlet are formed in ridges at two opposite angles of the paddy field, and anti-escaping facilities are additionally arranged at the water inlet and the water outlet; carp ditches and carp pits are excavated in the paddy field, and the ditches are communicated with the pits; paddy rice is planted; base fertilizer is applied to the paddy field, and the paddy rice is planted with the density of 9000-12000 holes of transplanting per mu; fish fries are stocked; after rice seedlings turn green, Zhong Ke No.3 crucian carp fries are stocked, the specification of the fish fries is 30-50 g / each fish, and 200-400 fishes are stocked per mu of paddy field; meanwhile, 400-600 fishes of summer fishes with the length of 4-6 cm are arranged per mu of paddy field; daily management is carried out and includes fodder particle throwing, fertilizer applying, paddy field drying in sunshine, disease and insect pest prevention and treatment, weed removing, bird strike prevention and water amount control.

The invention provides a weight-loss composition and a preparation method thereof. The weight-loss composition per part comprises the following raw materials: 4 billion-16 billion inactivated AKK bacteria, 2 billion-10 billion bacillus natto, 1 billion-6 billion lactobacillus reuteri, and 5g-20g of prebiotics. The invention also discloses a preparation method of the weight-loss composition. The preparation method mainly comprises steps of preparation of the inactivated AKK bacteria, culture of the bacillus natto, culture of the lactobacillus reuteri, vacuum freeze-drying of the weight-loss composition, crushing of lyophilized powder, weighing, granulating and packaging. According to the present invention, a plurality of weight-loss mechanisms are adopted to enhance the weight-loss effect of the composition, and disadvantages of a single weight-loss mechanism and a poor weight-loss effect in previous weight-loss products are overcome. The weight-loss composition provided by the presentinvention has light weight per part, good taste, no influence on daily dietary habit of users, and avoids phenomena of malnutrition, immunity decline, rebound in the later period and influence on normal metabolism caused by taking general weight-loss products.

The invention discloses a polyculture pond and a polyculture method for penaeus monodon, holothuria scabra and siganus oramin. The circumferential inner edge of the polyculture pond is provided with aslope. The polyculture pond is characterized in that several inhabitation piles are arranged close to the bottom of the slope and are alternately distributed around the edge of the polyculture pond,each inhabitation pile comprises a column and a ceiling located at the top of the column, and an impoundment cover is arranged around the middle of the column and faces the slope. Holothuria scabra isstocked in the impoundment covers, at the same time, penaeus monodon and siganus oramin are cultured in water in the polyculture pond together, and penaeus monodon is fed with bait regularly. By culturing holothuria scabra and siganus oramin together in the polyculture pond where penaeus monodon is mainly cultured, bottom mud dirt and water algae in the polyculture pond can be effectively controlled respectively, it is guranateed that both the bottom of the polyculture pond and water in the polyculture pond can meet growth conditions of penaeus monodon all the time, and polyculture in this way provides a good economical culture mode.

A river ditch sewage ecological strengthening self cleaning method is as follows: river ditch sewage passes through bio-based weir wetland oxidation pond comprising multi stage base weirs, each stage base weir comprises a levee slope biological vegetation or a percolationmaterial, landscape aeration, sprinkler irrigation aeration, a wetland, a base weir and a base weir front sedimentation ditch and a base weir rear sedimentation ditch, and a horizontal plane between the two stage base weirs is located at the position of 1 / 2-2 / 3 of the height of an upper-stage base weir and the top of a lower-stage base weir, and the sedimentation ditches have the depth of 0.5 m and width of 1 m.

The invention discloses a method for improving the biogas generation property of anaerobic fermentation of chicken manure by adding charcoal. The method comprises steps of adding rice hull charcoal into chicken manure and implementing anaerobic fermentation to make biogas. The rice hull charcoal is prepared through rapid thermal cracking of rice hull in a biomass waste production liquid fuel device, the rice hull charcoal is adopted as an external additive to promote the chicken manure anaerobic fermentation biogas generation process, the problem of ammonia inhibition in chicken manure anaerobic fermentation biogas generation engineering can be solved, and the fermentation stability can be improved. By adopting the method, efficient and stable biogas production with chicken manure can be achieved, the fermentation cycle is short, the fermentation gas yield is large, the methane content is high, the operation is stable, the problem that a system is easy to break down in the chicken manure anaerobic fermentation process can be solved, meanwhile, fermentation residues rich in charcoal can be obtained, and agricultural production and soil improvement can be facilitated when the fermentation residues are used as organic fermentations. By adopting the method, theoretical foundations and data support are provided for energy and resource utilization of chicken manure and effective utilization of biogas slurry and biogas residues.

The invention relates to a water electrolyzing type artificial fish reef. The water electrolyzing type artificial fish reef is composed of a reef body, an electrolyzer and a floating device and can provide a necessary and safe habitat for gathering, foraging, breeding, growing and hiding of aquatic organisms such as fishes and further can generate an ascending flow which can change the distribution of a flow field in a sea area to drive exchange of bottom nutritive salt substances and an upper water body to provide nutrients for proliferation and growth of plankton in the upper water body and promote the breeding ability of planktons so as to form an excellent bait field. The bait field attracts migratory fishes to be gathered and detained to realize a better fish gathering effect, and meanwhile, a current generated by a solar power generation device can electrolyze desalted seawater. The electrolyzed oxygen can increase the oxygen content of seawater around the fish reef to create a good habitat for aquatic organisms such as shells and trepangs. The electrolyzed hydrogen is collected in a gas collecting box, so that a clean energy source can be provided, thereby greatly improving the primary productivity in the surrounding sea areas.