34results about How to "Achieve ecological balance" patented technology

The invention relates to an integrally-cast cement pervious concrete ecological protection slope and a construction method thereof. In the invention, a protected slope becomes an integral rigid structure by carrying out in-site casting on a slope required to be protected with macropore pervious cement concrete; an ecological mixing basic layer is slightly spraying on the surface of a pervious cement concrete protecting layer; seeds germinate, grow and can penetrate through a pervious cement concrete protection slope structural layer; and long root-system plants are selected and used to ensure that a pervious cement concrete protection slope is connected with a clay layer of a slope surface substrate together by root systems of vegetation covers. Compared with the prior art, the ecological slope obtained by construction in the invention has the advantages of stable structure, excellent ventilating performance and permeable performance, simpleness and quickness in construction, strong capabilities of water conservation and soil reinforcement, favorable protection effect of the vegetation covers and the like.

The invention discloses a compost for cultivating hericium erinaceus, and a preparation method of the compost. The compost is prepared by mixing radix boehmeriae bones, cottonseed hulls, bran and gypsum in a certain proportion. The preparation method comprises the following steps of: A, performing pretreatment of base materials, namely drying the radix boehmeriae bones in the sun, crushing the dried radix boehmeriae bones, weighing the corresponding content of radix boehmeriae bones, bagging and sealing, soaking the bag in a water pool, standing for later use, drying the cottonseed hulls and bran cultivation materials in the sun, and subpackaging for later use; B, weighing the radix boehmeriae bones, cottonseed hulls, bran and gypsum in proportion, fully mixing the radix boehmeriae bones, the cottonseed hulls, the bran and the gypsum, and stirring until the water of the cultivation materials grasped by hands and well stirred are formed into drops, for later use, thereby obtaining the compost. The effects are that: 1, the radix boehmeriae bones are wastes in the radix boehmeriae production, are abundant, and are used for performing substitute cultivation of hericium erinaceus so as to change radix boehmeriae bone wastes into valuables, reducing the environment pollution and increasing the economic benefits; 2, the radix boehmeriae bones can replace a part of main materials in the original compost, so that the cost can be lowered, and the method is practicable and is simple and convenient to operate.

The invention discloses a culture compost for growing pleurotus eryngii by polygonum cuspidatum residues and a preparation method thereof. The culture compost is applicable for growing pleurotus eryngii in a liquid strain, and is prepared from polygonum cuspidatum residues, corncob, sawdust, bran, corn flour, bean pulp, lime and gypsum according to a ratio. The preparation method comprises the following steps: A, pre-treatment of a substrate, piling and fermenting polygonum cuspidatum residues and sawdust respectively for a week in advance, pre-wetting corncob by water, standing in air for later use, the corn flour, the bran and the bean pulp are all dry products, and packaging for later use; and B, weighing polygonum cuspidatum residues, sawdust, corncob, corn flour, bean pulp, lime and gypsum according to the ratio, mixing uniformly with water, stirring mechanically for 1h, adjusting the water content to 60-65%, wherein the pH (potential of hydrogen) is 6.5-6.8. By the factorization of the pleurotus eryngii, the production period is shortened greatly, and the cost is reduced; and the polygonum cuspidatum residues are the wastes of polygonum cuspidatum production, the resource is rich, the particle size is medium, the water retention property is high, through using the polygonum cuspidatum residues to grow pleurotus eryngii, the waste is turned into wealth, the waste of resource is reduced, and the economic benefit is improved.

The invention provides an ecological restoration method for a black and odorous river channel, and belongs to the technical field of sewage treatment. According to the method, ecological restoration is carried out on the black and odorous river channel from five aspects of source control and sewage interception, bottom mud treatment, water body purification, ecological restoration and maintenance management, and the method is high in operability, thorough in treatment and high in treatment efficiency; through reconstruction of a riverway ecological system, the self-cleaning capacity of the water body is gradually restored, the peculiar smell and chroma of the black and odorous water body are gradually eliminated, finally ecological balance of the water body is achieved, the water quality is improved, the water body ecological system can be healthily and stably developed for a long time, and good environment-friendly and ecological functions are achieved.

The invention relates to a self-degradation nutrient solution deep-buried irrigation water bag. Water and plant nutrient solutions are stored in a degradation water bag and slowly permeate the bottoms of plant root systems from a permeating mold, water evaporation in the desert arid environment is quite effectively prevented, and the survival rate of transplanted plants is guaranteed; when the water is used up through permeation, new water can be supplemented through a connecting pipe, a connecting pipe cover is inwards screwed after the plants survive and is punctured to enable degradation agents stored in the connecting pipe cover to enter the degradation water bag and the permeating mold from the connecting pipe to degrade the degradation water bag and the permeating mold, the degraded water bag is fused into soil, and ecological balance is achieved.

The invention relates to the technical field of petrochemical waste gas treatment and in particular relates to a high-efficiency petrochemical waste gas treatment device. The high-efficiency petrochemical waste gas treatment device comprises a waste gas pretreatment unit, a waste gas purification unit and a water circulation unit; the waste gas pretreatment unit is composed of a waste gas separation unit and a waste gas prewashing unit; the waste gas purification unit comprises a purification pool; a biodegradation unit, a plant purification unit and a photo-catalytic oxidation unit are sequentially arranged in the purification pool from bottom to top; the biodegradation unit comprises a placement channel; the placement channel transversely penetrates through the purification pool; a replaceable biodegradation mechanism is inserted into the placement channel. According to the high-efficiency petrochemical waste gas treatment device disclosed by the invention, the waste gas treatment difficulty can be reduced, the waste gas purification ability and efficiency are improved, so that a recyclable biology-environment balance system is established by the whole device, and the purification degree of the waste gas can be effectively improved.

The present invention discloses a Hericium erinaceus culture medium and a preparation method thereof, wherein the Hericium erinaceus culture medium comprises, by weight, 47-52 parts of straw, 15-19 parts of miscellaneous wood chips, 9-12 parts of livestock manure, 1-2 parts of a fermentation agent, 3-5 parts of bean residue, 5-10 parts of bran, 1-2 parts of calcium superphosphate, 1-2 parts of ammonium hydrogen carbonate, 1-2 parts of gypsum powder, 1-2 parts of quick lime, and 0.5-0.8 part of urea. According to the present invention, the Hericium erinaceus culture medium has characteristics of good gas permeability, strong water holding capacity and sufficient nitrogen content, can provide sufficient nutrients for the cultivation of Hericium erinaceus, is suitable for the growth of Hericium erinaceus, and further has advantages of wide raw material source, low cost, ecological balance achieving, economical benefit improving, and rational source utilization; and by using the two fermentations, the culture medium has the high quality, the pests and the diseases are less, the vitality of the mycelium is strong after the inoculation, the uniform degree is good, the yield of the Hericium erinaceus is increased, and the broad application prospect is provided.

The invention discloses a rice-fish-trionyx-krill symbiotic breeding method, and belongs to the technical field of breeding. The rice-fish-trionyx-krill symbiotic breeding method comprises the following specific steps that before breeding, submerged plants and rice are planted in breeding ponds; during breeding, three layers of net enclosures are symmetrically laid in the two breeding ponds, and then breeding throwing is carried out; and during regular maintenance, a sound wave fish expelling device is periodically used for expelling fishes in culture ponds into detection ponds, and large-volume aquatic organisms such as the fishes are counted from a counting isolation fence between the culture ponds and the detection ponds in the breeding ponds; and the number of fishes, krill and trionyxin the breeding ponds is counted. Overgrown aquatic animals are caught, symbiotic breeding of fishes, krill and trionyx can be achieved, the krill can be induced to enter the other two breeding netsby spraying an inducer through the breeding nets, the fishes and the trionyx are periodically driven to penetrate through an isolation dam to count the fishes and krill, the excessive fishes and trionyx are selectively fished, and therefore ecological balance in the breeding ponds is achieved.

The invention discloses a method for cultivating high-quality organic tremella fuciformis by utilizing bamboo shoot offal. The method comprises culture medium manufacture, punching, sterilization, inoculation, culture, tremella fuciformis yielding and harvesting and mushroom-stick recycling. The bamboo shoot offal (bamboo shoot shell, bamboo shoot skin and bamboo shoot heads) is adopted as a main raw material for a tremella fuciformis culture medium, a currently commonly-used cottonseed hull culture medium is replaced through a special pretreatment process (deactivation of enzymes, wall breaking, pH adjustment and puffing treatment) and a reasonable formula matching, and the organic tremella fuciformis which is free of pesticide residues and heavy metal pollution and more balanced and comprehensive in nutrition is cultivated. Hyphae grow sturdily and quick in the cultivation process, the tremella fuciformis is yielded quickly, and the tremella fuciformis growth cycle is effectively shortened.

The invention relates to a method for large-scale mimic ecological reproduction and healthy efficient domestication of platysternon megacephalum. The method comprises the steps of establishing a water quality regulating pool, establishing a reproduction and domestication pool, establishing a hatching culture pool, connecting a water source, performing pool body disinfection, adjusting water level, regulating water flow, selecting parent turtles, causing the parent turtles to lay eggs, collecting turtle eggs, hatching the turtle eggs, cultivating baby turtles, cultivating young turtles, putting adult turtles in the market, performing purification and cultivating strong turtles and controlling diseases. According to the method, a chemical water quality improvement preparation and a power supply warming and cooling device do not need to be added, and platysternon megacephalum cultivation water quality can be kept throughout the year in a pure and pollution-free water source regulating device having an optimal growth water temperature. All natural animal baits are used in the platysternon megacephalum cultivation process, and no hormone or chemical agent is used. The method for large-scale mimic ecological reproduction and healthy efficient domestication of platysternon megacephalum enables the habitat, bait richness and disease control in the whole platysternon megacephalum domestication process to be in a natural mimic ecological state.

The invention discloses an ultrasonic transducer which relates to the mobile communication field. The ultrasonic transducer comprises an input filter, an output controller, an oscillation thruster, an inverting circuit and a transduction output transformer; the input filter limits current and filters wave of the input direct currents; stable direct currents are input at the output end of the input filter; the input end of the output controller is connected with the output end of the input filter; the output of ultrasonic waves is controlled by controlling the transfer of the direct currents; the input end of the oscillation thruster is connected with the output end of the output controller and the output end of the oscillation thruster is connected with the input end of the inverting circuit; the oscillation current is input to the inverting circuit; the inverting circuit changes and outputs the frequency of the oscillation current; the input end of the transduction output transformer is connected with the output end of the inverting circuit; the ultrasonic wave is output with a frequency ranging from 0 to 20 Hz. By using the ultrasonic transducer, the fishing can be more convenient and the fish are not killed, which is beneficial to the principle of 'catching the big fish, releasing the small fish', thus realizing ecological equilibrium.

The invention discloses a multi-power-driven offshore comprehensive observation platform, which comprises a platform main body. The platform main body is connected to a semi-submersible main body platform, a sustainable power supply platform, an ocean observation platform, a comprehensive test platform, a connection platform, a fresh water platform and an organic waste treatment and utilization platform. A water pumping and draining system, an anchoring system and n electric propulsion system are arranged on the semi-submersible main body platform, so that power can be provided for the operation of the platform main body, and the platform main body can stably move forwards, float upwards and sink under severe sea conditions. According to the invention, the sustainable power supply platformcontinuously provides electric energy to the platform through solar energy and wind energy power generation, the comprehensive test platform is arranged on the platform main body to provide test conditions for long-term deep scientific research; the connection platform is utilized to realize takeoff and landing of a helicopter and stable stop of the platform main body. The organic waste treatmentand utilization platform performs circular treatment and utilization on organic waste on the platform main body, and ecological balance of the platform main body is guaranteed.

The invention discloses an ecological special fertilizer of common yam rhizome. The ecological special fertilizer is prepared from animal waste, coprinus comatus waste materials, cakes, straw, ETS compound bacteria, phanerochaete chrysosporium, JT compound bacteria, mountain soil, amino acid, urea, diammonium phosphate, potassium sulfate, magnesium sulfate, copper sulfate, ferrous sulfate, zinc sulfate, manganese sulfate and dolomite dust. The invention further discloses a preparation and application method of the ecological special fertilizer. The prepared ecological special fertilizer is reasonable in nutritional ingredient ratio, the nutrition requirements of common yam rhizome at all growth stages are met, the number of beneficial bacteria in common yam rhizome planting soil is increased, enzymatic activity in common yam rhizome planting soil is increased, ecological balance of the common yam rhizome plant rhizosphere soil environment is achieved, the soil structure is obviously improved, the stress resistance of common yam rhizome is enhanced, the morbidity and disease index of common yam rhizome are decreased, the aims of high yield and high quality are achieved, and the ecological virtuous circle of common yam rhizome production is achieved.

The invention discloses a needle mushroom cultivation method. The needle mushroom cultivation method includes the steps of fermenting a cultivation medium, bagging and sterilizing the cultivation medium and cultivating needle mushroom. The cultivation medium comprises, by weight, 20-30 parts of cotton stalk, 15-22 parts of wood shavings, 5-8 parts of cottonseed hull, 8-12 parts of bran, 3-5 parts of bean dregs, 2-4 parts of urea, 0.7-1.2 parts of light calcium carbonate, 0.4-0.6 part of superphosphate, 1-2 parts of land plaster, 1-2 parts of quick lime and 1-2 parts of leavening agent. The needle mushroom cultivation method has the advantages that the cultivation medium has the advantages of being low in cost, short in cycle, high in quality and large in benefit, and materials are easy to obtain; needle mushroom produced from the cultivation medium is not contaminated by the cultivation medium and is real contamination-free organic food, 5-7 batches of needle mushroom can be produced on each bag of the cultivation medium, hyphae of the needle mushroom are thick, thick, uniform, neat and white, the primordia hastening period is short, the yield is large, the biological efficiency is high, and mushroom shapes are neat and uniform, and the mushroom is high in commercial quality.

The invention discloses a hydraulic movable ecological dam capable of biologically purifying water in rivers and lakes. The hydraulic movable ecological dam comprises a movable dam face, membrane bioreactors, water, gas and material shared inlets and water and gas shared outlets. A rotary shaft which can be fixed onto a bottom plate of a river bed is used as an action fulcrum of the movable dam face, and the movable dam face can be lifted under the control of a hydraulic cylinder and hydraulic pump stations and has river damming and water storing functions; the membrane bioreactors are detachably fixed to a side of a movable dam body; suspended biological fillers are preliminarily arranged in the membrane bioreactors; the water, gas and material shared inlets and the water and gas shared outlets are formed in the membrane bioreactors. The invention further discloses a method for applying the hydraulic movable ecological dam. The hydraulic movable ecological dam and the method have the advantages that microbial catalysts or microbial preparations can be dissolved, can be propagated on a large scale and can be released in polluted water sources, microorganisms in the water can be activated, large-scale propagation of the microorganisms can be promoted, accordingly, the purposes of degrading pollutants in the water, increasing dissolved oxygen, promoting plant photosynthesis and forming food chains can be achieved, the water quality can be quickly improved, the self-cleaning capacity of the water can be enhanced, and biological dredging effects can be realized.

The invention discloses a pollution-free environment-friendly cleaning effervescent tablet. The cleaning effervescent tablet comprises, by weight, 2-10 parts of a biological surfactant, 10-35 parts of an alkaline auxiliary agent, 10-35 parts of an acidic auxiliary agent, 0.05-3 parts of an adsorbent and 10-40 parts of a filler, and the biological surfactant is selected from one or a mixture of two or more of rhamnolipid, sophorolipid and trehalose lipid. According to the cleaning effervescent tablet disclosed by the invention, the biological surfactant is adopted to replace a surfactant of an existing petroleum product, and the adsorbent and the filler are adopted, so that the defect that the effervescent tablet cannot be produced due to an acid-base reaction of an alkaline auxiliary agent and an acidic auxiliary agent which are necessary for the biological surfactant and the effervescent tablet is overcome; and the effervescent tablet is free of pollution after being dissolved in water during use, free of discharge of residual substances, free of water pollution and capable of realizing ecological balance.

The invention discloses a straw mushroom culture medium. The culture medium is prepared from, by weight, 12-18 parts of vinegar residues, 10-16 parts of bagasse, 16-22 parts of mushroom dreg, 12-18 parts of straw, 6-10 parts of cottonseed hull, 5-9 parts of bran, 1-2 parts of gypsum powder, 1-2 parts of lime, 0.001-0.002 part of enzyme preparation and 0.5-0.9 part of fermentation agent. The straw mushroom culture medium has the advantages of good permeability, strong water holding capacity, sufficient nitrogen content, wide raw material sources and a low price, and conforms to the development direction of low carbon economy; the culture medium makes the cultivation period of straw mushrooms short, and the cultured straw mushrooms are dense, thick, uniform, neat and high in commodity; the preparation period of the culture medium is short, and unabsorbable macromolecular substances in the culture medium are degraded to small molecular substances, which improves the utilization rate of edible fungi to the culture medium and can kill insect eggs and a part of miscellaneous bacteria.

The invention provides a shiitake mushroom substitute material containing yellow ginger residues and a preparation method. The preparation method comprises the following steps of (1) bagging sterilization: uniformly mixing culture compost components according to the proportion as followed: 48 percent-64 percent of weed tree sawdust, 16 percent to 32 percent of yellow ginger residues, 19 percent of bran, and 1 percent of plaster; adding water to stir until the moisture of stirred cultivating materials can form water drops when being clenched by a hand, wherein the moisture content is 60 percent to 65 percent; using polyvinyl chloride fungus bags to package and seal; carrying out sterilization at the temperature of 125 DEG C for 2 hours or at ordinary pressure and the temperature of 100 DEG C for 12 hours; natural cooling to the room temperature; (2) inoculated culture: carrying out inoculated culture through prepared culture composts for culturing shiitake mushrooms in an inoculating room or on a super clean bench; putting the inoculated fungus bags onto a culture frame in a culture room; carrying out dark culture at the temperature of 24-26 DEG C; achieving a physiological ripening stage through a colouring stage after the bags are full of shiitake mushroom fungus filaments; (3) management of producing mushroom: when the fungus bags achieve the physiological ripening stage and the weather conditions are appropriate, putting the fungus bags in a mushroom producing shed to produce mushrooms, and picking the shiitake mushrooms when the shiitake mushrooms are grown to meet the commercial grade standard.

The invention discloses a method for managing aquatic plants in a pond. The method comprises the following steps that (1) the coverage area of the aquatic plants is kept accounting for 50-60% of the whole pond; (2) different aquatic plant categories are matched at a culture pond opening; and (3) proper oxygenation and bottom change are conducted on the culture pond, and a culture water body is kept balanced. Management of the aquatic plants in the pond is reasonably optimized, comprehensive regulation and control are conducted from the aspects of aquatic plant coverage area, aquatic plant category matching, water body management and the like, ecological balance in the water body can be well achieved, different aquatic plant variety matching planting methods are provided according to different water levels of the culture pond, reasonable matching is utilized, and the water level is adjusted to the greatest extent, a thicker habitat is more effectively provided, a rich material basis and an excellent ecological environment are provided for fish and shrimp cultivation in the pond, the positive effect on water purification is also achieved, and the cultivation requirement of the pond, especially an intensive culture pond opening, is met.

The invention provides a black and odorous water body purifying method. The black and odorous water body purifying method comprises the following steps: adding alkali metal peroxide slow-release particles at the bottom of the water body by batches; adding bio-enzyme preparation particles at the bottom of the water body; adding sulfured bacteria composite preparation particles on the surface of thewater body; uniformly dispersing and adding the alkali metal peroxide instant particles on the surface of the water body by batches; adding high-efficiency degraded bacteria liquid in the water body,simultaneously, arranging aeration oxygenation equipment on the surface of the water body or a superficial layer for continuous reoxygenation of the water body; and placing fish in the water body and / or planting water plants at the near shore of the water body for biological treatment to realize purifying and good ecological circulation of the black and odorous water body. The black and odorous water body purifying method has the advantages of less engineering measures, less construction engineering work, and little environment secondary pollution, through re-construction of an ecological system, the water body self-cleaning capability is recovered, and peculiar smell and chroma of the black and odorous water body are gradually eliminated, so that the ornamental entertainment value of thewater body can be recovered from the senses.

The invention relates to the technical field of crayfish culture, and discloses a crayfish breeding method. The crayfish breeding method comprises the following steps of thoroughly cleaning a pond toachieve no grass and no trash fish. According to the crayfish breeding method, a mode of one cage and one crayfish is arranged, the product is designed according to the living habit of the crayfish, the crayfish is prevented from death due to mutual attack, the problem that grass exists in a pond and water culture is difficult is solved, fertilizer and water are mixed with feed for breeding in thewhole process, and the crayfish breeding cage does not need to be fixed, so that the breeding cage is always located on the water body, and less bacteria and high oxygen are achieved, so that the problem that the mortality rate of bacterial infection of the crayfish in the shelling period is high can be solved, the growth speed is high in the resting environment, the growth speed and survival rate of the crayfish can be visually observed, the problem that the crayfish cannot be manually controlled in the breeding and fry raising process is comprehensively solved, and the crayfish can be caught all the year round; and the problem that the crayfish can only be fished seasonally is solved, the survival rate and the living environment of the crayfish can be improved, and breeding of the crayfish is facilitated.

The invention relates to a method for reducing the transportation of riverway sediment along banks in a pisha sandstone area in the middle reach of the Yellow River. The method comprises the five steps of slowing down the water flow along the banks of a riverway, preventing and controlling water flow eroding and scattering of pisha sandstone, fixing the pisha sandstone (sediment) scattered in theriverway, improving the stability of the slope bottom structure of the pisha sandstone, and restoring vegetation and a micro-ecological environment. According to the method for reducing the transportation of the riverway sediment along the banks in the pisha sandstone area in the middle reach of the Yellow River, according to the physical properties of the pisha sandstone, the unique climate of the pisha sandstone area and characteristics of different plant species of the pisha sandstone area and technical measures, the ecological restoration principles of short cycle, high effectiveness, lowcost, good effect and sustainability are accorded with, an ecological treatment system for the pisha sandstone collapse area along the banks of the riverway is established, the vegetation is quickly restored, the plant-water-mud / sand ecological balance is achieved, and a technical system for efficiently reducing the transportation of the riverway sediment along the banks in the pisha sandstone area in the middle reach of the Yellow River is constructed.

The invention discloses a cultivation method of organic rice. The cultivation method comprises the following steps of 1, planting and burying overwintering green manure; 2, applying an organic base fertilizer; 3, finely preparing soil; 4, finely selecting fine seeds; 5, treating the seeds; 6, sowing and seedling raising; 7, appropriate-period transplanting; 8, performing water management; 9, preventing and treating diseases, pests and grass damage of rice by adopting physical, biological and biological balance technologies and 10, others. The method overcomes the defects of low yield, low economic benefit and the like caused by easy invasion of diseases and insect pests and low disease resistance of existing rice.

The invention relates to a building capable of achieving ecological balance and a construction method thereof. Human living, crop growth and fish growth are involved in the building capable of achieving ecological balance and the construction method thereof. Certain nutrients are contained in waste water of human living, the waste water enters a blow-off pipeline through isolating, purifying and deodorizing devices and finally enters a fish breeding facility, the nutrients are supplied to fish living, the nutrients excreted in living of human and the fish are conveyed to a farmland facility for crop growth through a water pumping device, and necessary nutrients are provided for crop growth. Human eat fruits of the crops and meat of the fish, the fish eat excrement of human living, the crops absorb the excrement of human and the fish, full-automatic ecological balance can be formed, stable yields despite drought or excessive rain can be achieved, the contradiction that the area of farmland is inevitably reduced when more houses are built can be thoroughly avoided, and the area of the farmland can be continuously increased for human.

The invention discloses a water ecological purification device which is a barrel, wherein the barrel is internally provided with a shaft; the shaft is radially provided with at least four net separators for separating the barrel; slots which are used for pulling and inserting baffles are formed between the net separators, in the outer edge of the shaft and in the inner edge of the barrel; the baffles can be inserted in the slots; water outlet valves are arranged at the bottom of the barrel and between the net separators; filter materials are arranged between the net separators to serve as filter layers. According to the water ecological purification device, circulating water purification is carried out on the living environment of aquatic organisms, and recycling is carried out on water resource, particularly the seawater of marine organisms; the purification device is easy to clean and maintain, is energy-saving and environmentally friendly and has the advantages of ensuring that the living environment of the aquatic organisms keeps natural and energetic, ensuring that the water can be recycled for a long time, realizing the ecological balance and improving the survival rate of the aquatic organisms.

The invention discloses a compost for cultivating hericium erinaceus, and a preparation method of the compost. The compost is prepared by mixing radix boehmeriae bones, cottonseed hulls, bran and gypsum in a certain proportion. The preparation method comprises the following steps of: A, performing pretreatment of base materials, namely drying the radix boehmeriae bones in the sun, crushing the dried radix boehmeriae bones, weighing the corresponding content of radix boehmeriae bones, bagging and sealing, soaking the bag in a water pool, standing for later use, drying the cottonseed hulls and bran cultivation materials in the sun, and subpackaging for later use; B, weighing the radix boehmeriae bones, cottonseed hulls, bran and gypsum in proportion, fully mixing the radix boehmeriae bones, the cottonseed hulls, the bran and the gypsum, and stirring until the water of the cultivation materials grasped by hands and well stirred are formed into drops, for later use, thereby obtaining the compost. The effects are that: 1, the radix boehmeriae bones are wastes in the radix boehmeriae production, are abundant, and are used for performing substitute cultivation of hericium erinaceus so as to change radix boehmeriae bone wastes into valuables, reducing the environment pollution and increasing the economic benefits; 2, the radix boehmeriae bones can replace a part of main materials in the original compost, so that the cost can be lowered, and the method is practicable and is simple and convenient to operate.

The invention discloses a preparation method of a culture medium for volvariella volvacea. The preparation method particularly comprises the following steps: adding water into 12-18 parts by weight of vinegar residues, 10-16 parts by weight of bagasse, 16-22 parts by weight of mushroom dregs, 12-18 parts by weight of straw, 6-10 parts by weight of cottonseed hull, 5-9 parts by weight of bran, 1-2 parts by weight of gypsum powder, 1-2 parts by weight of lime, 0.001-0.002 part by weight of an enzyme preparation and 0.5-0.9 part by weight of a fermentation preparation, performing uniform stirring, and stacking for fermentation; and adjusting the water content and the pH value of the fermentation broth, performing bagging, sealing bags, and then performing sterilization and cooling to obtain the volvariella volvacea culture medium. The preparation method has the following beneficial effects: the preparation method is simple, the preparation period is short, difficult-to-absorb macromolecular substances in the medium can be degraded into small molecular substances, worm eggs and part of infectious microbes are killed, and large-scale production is easy; and the culture medium enables the volvariella volvacea cultivation period to be short, and the cultured volvariella volvacea is dense, thick, uniform and ordered and has high commodity.

The invention discloses an ultrasonic transducer which relates to the fishing device field. The ultrasonic transducer comprises an input filter, an output controller, an oscillation thruster, an inverting circuit and a transduction output transformer. The input filter limits current and filters wave of the input direct currents. Stable direct currents are input at the output end of the input filter. The input end of the output controller is connected with the output end of the input filter. The output of input filter is controlled by controlling the transfer of the direct currents so as to control the output of the ultrasonic transducer. The input end of the oscillation thruster is connected with the output end of the output controller and the output end is connected with the input end of the inverting circuit. The oscillation current is input to the inverting circuit. The inverting circuit changes and outputs the frequency of the oscillation current, and the frequency is within a range of 0-20Hz. The water electrically connected to the output end of the transduction output transformer outputs the alternating current with the voltage transformation. By using the ultrasonic transducer, the fishing can be more convenient and the fish is not killed, which is beneficial to the principle of ''catching the big fish, releasing the small fish'', thus realizing ecological equilibrium.

The invention relates to a method for reducing the river channel sediment transport in the middle reaches of the Yellow River in the sandstone area of ​​the Yellow River. It consists of slowing down the water flow along the river, preventing the water flow from eroding the scattered sandstone, fixing the sandstone (sand) scattered in the river, and increasing the stability of the sandstone slope bottom. nature, restoration of vegetation and micro-ecological environment” consists of five steps. The method of the present invention to reduce the transport of river sediment in the sandstone area of ​​the middle reaches of the Yellow River is based on the physical properties of the sandstone area and the unique climate of the sandstone area, as well as its different plant varieties and The characteristics of technical measures follow the ecological restoration principle of "short cycle, quick effect, low cost, good effect, and sustainable", establish an ecological governance system for the collapsed sandstone area along the river, quickly restore vegetation, and realize plant-water-mud / sand To build a technical system to efficiently reduce the transport of river sediment in the sandstone area of ​​the middle reaches of the Yellow River.

The invention discloses a cultivation method for the symbiosis of rice, fish, turtle and shrimp, which belongs to the technical field of cultivation, and relates to a cultivation method for the symbiosis of rice, fish, turtle and shrimp. The specific method is: before cultivation, both submerged plants and Rice planting; during breeding, three layers of nets are laid symmetrically in the breeding pond, and then the breeding is carried out; during regular maintenance, the fish in the breeding pond is driven to the detection pond by the sound wave fish driving device on a regular basis, and the fish from the breeding pond The counting isolation dam between the cultivation pond and the detection pond counts the large-volume aquatic organisms of fish and turtles; counts the number of fish and turtles in the breeding pond; catches the overgrown aquatic animals, and can realize symbiotic breeding of fish, squid and soft-shelled turtles. In addition, the fish and turtles can be induced to enter the other two culture nets by spraying inducers on the culture nets, and the fish and turtles can be regularly driven to pass through the counting isolation dam to count the fish and turtles. ecological balance.