122results about How to "Restore ecology" patented technology

The invention provides riverway water quality purification and ecosystem restoration adjustable wetland technology, which comprises that: a rubber dam with adjustable height is arranged in a riverway; potamogeton plants are planted at the upstream of the rubber dam of the riverway to form artificial wetland; the planting density of the potamogeton plants is between 20 and 30 clusters / m, and a cluster is between 3 and 4 plants; the retention and purification time of river water in the artificial wetland is adjusted by adjusting the height of the rubber dam, the height of the rubber dam is improved in normal and dry seasons to store water to make the water level at the upstream of the rubber dam of the riverway improved, and the adjusting height of the rubber dam is determined by the COD concentration of the river water at the inlet of the artificial wetland and the temperature of the river water. By planting the potamogeton plants in the riverway to form the wetland, instead of lifting the water onto land to construct an artificial wetland, the technology can more directly and effectively restore the damaged riverway ecosystem, improve the water quality of polluted river water, and can ensure normal flood discharge of the riverway in flood season.

The invention discloses an organic leaf surface fertilizer rich in organic selenium and vitamins and a preparation method for the organic leaf surface fertilizer. The organic leaf surface fertilizer rich in the organic selenium and the vitamins comprises the raw materials in parts by weight: 40-60 parts of selenium-enriched bombyx mori, 40-60 parts of selenium-enriched plant waste, 40-60 parts of selenium-enriched edible mushroom waste, 40-60 parts of sodium selenite, 20-30 parts of vitamins and 1-10 parts of a composite fungicide. The selenium-enriched bombyx mori, the selenium-enriched plant waste and the selenium-enriched edible mushroom waste of the fertilizer can supply selenium elements and also supply animal proteins, plant proteins and microorganism proteins and are fermented by composite bacteria to polypeptide combined with the selenium elements. Therefore, the fertilizer can be used for supplying enough organic selenium and beneficial substances such as microorganisms and probiotics to the growth of crops; a large amount of waste is turned into treasures, so that social and natural resources are saved, the environment is protected, and cyclic economy is realized.

The invention provides a method for preparing environment-friendly and high-efficiency biological organic fertilizer by using distilled spirit vinasse, comprising the following steps of: puffing fermentation substrate by a threaded rod type puffing machine; transporting into a wet material mixing machine, cooling and adding microelement mineral salt, and inoculating bacterium liquid in proportion when the temperature is reduced to 30-35DEG C, completely mixing; and filling the inoculated and mixed fermentation substrate into a novel silica gel breathable membrane fermentation bag, packaging and sealing by an automatic metering and packing system, and fermenting for 5-7 at constant temperature in a fermentation room to obtain a finished product. The fermentation substrate is prepared by evenly mixing 50-60 parts by weight of distilled spirit vinasse, 5-10 parts by weight of humic acid, 5-15 parts by weight of sunflower husk powder, 5-10 parts by weight of ammonium sulfate, 5-10 parts by weight of potassium chloride and 5-10 parts by weight of corn steep liquor, wherein the water content of the fermentation substrate is 30-40 wt%; and the mixed bacterium liquid comprises bacterium liquid of streptomyces jingyangensis, clostridium butyricum, pseudomonas mendocina, azotobacter chroococcum and rhizopus oryzae.

The invention discloses an organic-selenium-enriched microorganism organic composite fertilizer and a preparation method thereof. The organic-selenium-enriched microorganism organic composite fertilizer comprises the raw materials in parts by weight: 40-60 parts of selenium-enriched bombyx mori, 40-60 parts of selenium-enriched plant waste, 40-60 parts of selenium-enriched edible mushroom waste, 40-60 parts of minerals, 20-30 parts of vitamins and 1-10 parts of a composite fungicide. The organic-selenium-enriched microorganism organic composite fertilizer can supply enough minerals such as organic selenium and beneficial substances such as microorganisms and probiotics to the growth of crops; meanwhile, the fertilizer can improve the soil, prevent diseases, and realize sterilization; a large amount of waste is turned into treasures, so that social and natural resources are saved, the environment is protected, and cyclic economy is realized. The organic-selenium-enriched microorganism organic composite fertilizer is one of the best fertilizers for producing pollution-free food, green food and organic food.

The invention relates to a method for purifying the surface of a tailings reservoir and ecologically restoring linear stonecrop herb. The method comprises the following steps of: a, purifying the superficial layer of tailings; b, covering clay; and c, afforesting vegetation. The method has the advantages of pollution abatement and ecological restoration; compared with a filling method and a solidifying method, the method saves abatement cost when used in the tailings reservoir; compared with a reclaimation method, the method saves a great number of soil resources on the basis of saving cost; compared with the common tailings reservoir, the method solves the problems of environmental pollution caused by dust because tailings are exposed in the common tailings reservoir; and the method has the advantages of convenient technology implementation, low cost, contribution to ecological balance and sustainable development of the society, and capability of achieving good economic benefit and environmental benefit.

The invention relates to a method for growing zenia insignis chun in rock desertification regions. The method is characterized by comprising the following processes of: seed selection and seedling growing, prevention and control of pest and disease damage, field planting, felling management and the like. According to the method, good zenia insignis tree planting procedures can be provided for the development of forestry and farmers; and after the zenia insignis chun is planted, the ecological environments of rocky mountain regions can be improved, industries can be adjusted, the cultivation of flocks and herds and the development of free-ranging lac insects can be simultaneously promoted, water can be conserved after hillsides are greened, soil and water can be preserved, the economic growth of villages can be promoted, and attractive mountainous landscapes in southwest rock desertification regions can be recovered.

The invention belongs to the technical field of ecological restoration and particularly relates to a water body ecological restoration method. The water body ecological restoration method comprises the steps that the water surface is cleaned, then submerged plants, emergent aquatic plants and floating-leaved plants are planted, and aquatic animals are put in. According to the water body ecological restoration method, sludge at the water bottom is treated with a plant blanket in-situ coverage method, root systems of the emergent aquatic plants are fixed with pollution-free clay, and a putting-in type planting method is adopted for the floating-leaved plants and the emergent aquatic plants. The aqueous plants can provide an adhesion symbiotic space for microorganisms, and provide a food source for aqueous animals, fish and shellfish are put in when the aquatic plants grow stably, and a rapid and simple water body forest system is formed. By means of the water body ecological restoration method, the effects of fixing sludge at the water bottom, restoring the natural ecological environment and maintaining the water to be clear permanently can be achieved; meanwhile, a dwelling site can be provided for fish and birds, and certain river landscape can be formed.

The invention provides a composite layer. The composite layer is used for controlling acidization of a mining slag heap yard and comprises a flow guiding layer, a first nonwoven fabric layer, a sand and stone layer, a second nonwoven fabric layer and an isolation layer which are arranged in sequence. The invention further provides a method for controlling the acidization caused by the mining slag heap yard and a revegetation method of the mining slag heap. By establishing a buffer isolation zone between a mining slag heap yard acidization surface and a plantation layer, the acid water containing a variety of heavy metal ions can be blocked and isolated, sulphur minerals in the lower layer can be effectively prevented from being further oxidized and acidified, the acid liquor in the lower layer can be prevented from permeating reversely into the upper layer so as not to pollute the plantation layer and poison plants under the action of soil capillaries. By reconstructing the plantation layer on the composite layer, a long-term stable fit environment can be created for the growth and development of plants, the vegetation degradation can be avoided, and the purposes of ecological remediation, environmental improvement and soil and water conservation can be achieved.

The invention relates to a method of collection and storage of wave energy and a pressure seawater scheduling system thereof, belonging to the field of hydropower, and particularly relates to a system for collection, transfer, scheduling and storage of wave energy, which can be continuously expansively connected in vast sea and land with waves as power and seawater as a continuous medium. In the system, floating force of waves and pressure of counterweight stones are respectively used by a plurality of floating bodies to press seawater sucked by piston cylinders of a plurality of structural concrete bodies at the bottom of the shallow sea into pipelines so as to be converged to form powerful resultant force of flow. After the system is completely filled, seawater is scheduled at the speed of light to seawater storage basins at any distance and any height for conventional hydroelectric power generation. By adopting the system, the motive power configuration for power production can be replaced in a large scale and thermal power plants and nuclear power plants can be eliminated; effects of sources of greenhouse gas emissions on the global climate can be eliminated fundamentally; and the excessive power capacity is conducive to development of industries with energy obtained via 'combustion' and high-speed energy conversion revolution can be implemented.

The invention relates to the field of biology and in particular to an efficient repairing complex inoculant and application thereof. The complex inoculant provided by the invention comprises strains of rhodococcus, pseudomonas, saccharomyces and micrococcus luteus, where the preservation number of the rhodococcus is CGMCC No.3276; the preservation number of the pseudomonas is CGMCC No.3277; the preservation number of the saccharomyces is CGMCC No.3278; the preservation number of the micrococcus luteus is CGMCC No.3903. The complex inoculant has remarkable effects of water ecosystem restoration, water bloom prevention and deodorization, in addition, the removal rate of the complex inoculant to all organic matters reach more than 70 percent, and national policies of circular economy and energy conservation and emission reduction are met better. By using the complex inoculant, a large amount of running cost for various water areas can be saved, and recycling treatment to wastewater is achieved.

The invention relates to a method for planting hylocereus polyrhizus in stony desertification mountain land. The planting method comprises the steps of land selection, land preparation, field planting, reshaping and pruning, field management, nutrient and water management, disease and insect pest prevention and control and harvesting. The planting and management method includes land selection, land preparation, field planting, reshaping and pruning, field management, nutrient and water management, disease and insect pest prevention and control and harvesting, so that the forestry department and peasants have better regulations for hylocereus polyrhizus planting, and rural economic growth and ecological restoration of the stony desertification land are promoted. A dwarf cash crop peanuts is further interplanted in a hylocereus polyrhizus orchard, the soil fertility is fully and effectively utilized, the multiple crop index is improved, meanwhile the coverage rate of soil is also improved, soil evaporation is decreased, the surroundings of root systems of the hylocereus polyrhizus are kept wet, growth and development of the hylocereus polyrhizus are facilitated, and the incomes of fruit farmers are increased.

The invention discloses methods for restoring an ecosystem of alkali-saline grassland by adopting a multifunctional vibration-type soil-improving machine, and relates to methods for restoring the ecosystem of the alkali-saline grassland. The methods solve the problems that the traditional methods for treating the alkali-saline grassland have high investment, slow response and single object and can only treat slight saline soil. The first method is to adopt vibration subsoiling to improve soil for slight alkali-saline grassland; the second method is to adopt vibration subsoiling and biochemical preparation spraying to improve the soil for medium alkali-saline grassland; and the third method is to adopt vibration subsoiling, biochemical preparation spraying and saline tolerant plant planting to improve the soil for severe alkali-saline grassland. The methods not only can save energy and reduce consumption, but also can improve the rate of soil pulverization, improve physical indexes of the soil, retain water, reduce alkali and salt, and inhibit accumulation of salt in the surface soil. By adopting the methods, the investment cost is reduced; and the methods have quick response, and can restore the slight alkali-saline grassland, the medium alkali-saline grassland and the severe alkali-saline grassland.

The invention relates to a special liquid package cotton fertilizer for improving soil, and a preparation method and application method of the liquid package fertilizer. According to the special liquid package cotton fertilizer for improving soil, the special liquid package fertilizer consists of a composite microbial liquid fertilizer and a macroelement water-soluble fertilizer, wherein the composite microbial liquid fertilizer consists of an amino acid fermentation liquid, fulvic acid, microbial bacteria, a nitration inhibitor and polyaspartic acid, and the macroelement water-soluble fertilizer consists of urea, monoammonium phosphate, potassium chloride, magnesium sulfate heptahydrate, EDDHA-iron, EDDHA-zinc, EDDHA-manganese, EDDHA-copper, boric acid, carboxymethyl cellulose, an amino acid fermentation liquid, bentonite and sodium pyrophosphate. The invention also discloses the preparation method and application method of the package fertilizer. According to the special liquid package cotton fertilizer for improving the soil provide by the invention, the requirements on nutrients in different growth and development periods of cotton can be met, and salinization of soil in Xinjiang can be improved. The application method of the special liquid package fertilizer conforms to the growth characteristics and fertilizer requirement laws of the cotton.

The invention discloses a microbial organic compound fertilizer rich in essential amino acids and a preparation method thereof. The microbial organic compound fertilizer rich in essential amino acids is prepared from the following raw materials in parts by weight: 40-60 parts of animal protein, 40-60 parts of vegetable protein, 40-60 parts of edible fungi waste, 40-60 parts of minerals, 5-15 parts of vitamins and 1-10 parts of complex microbial inoculants. The fertilizer can provide enough beneficial substances such as essential amino acids, organic minerals, vitamins and probiotics to the crops while improving the soil and preventing diseases and killing bacteria; by adopting a great quantity of waste and turning waste into wealth, the social and natural resources are saved, the environment is protected, and circular economy is realized; therefore, the fertilizer is one of the best fertilizers for producing pollution-free food, green food and organic food.

The invention provides a combined construction method for anti-shock ecological blankets and W-OH and a slope protection structure. The combined construction method comprises the following steps of (1) regulating a slope; (2) measuring field data; (3) laying the anti-shock ecological blankets along the direction parallel to a highway or a river way; (4) comprehensively fixing each two adjacent anti-shock ecological blankets in an overlapping stitching mode and a fixing nail fixing mode; (5) placing soil on the surfaces of the anti-shock ecological blankets; (6) spraying 2%-20% of W-OH liquor on the surfaces of the anti-shock ecological blankets with soil on the surfaces; and (7) maintaining plants. The slope protection structure comprises the anti-shock ecological blankets laid along the slope of a roadway or a river way, wherein each two adjacent ecological blankets are in overlapping stitching and are fixed by using fixing nails; two ends of each ecological blanket are fixed by using anchor rods; grooves are formed in the bottoms of the topmost ecological blanket and the bottommost ecological blanket; a composite fiber fabric layer is paved in each groove and is pressed by using a gabion stone cage; and the ecological blankets are stitched with the embedded composite fiber fabric layers. By using the construction method, the anti-erosion property of a construction road or a construction river way is greatly improved, water and soil loss is controlled, a slope is stabilized, and the ecology is recovered.

The invention discloses a planting method for roselle. The planting method for the roselle comprises the following steps: A, non-toxic treatment of land: turning the soil once, air-drying for two months, uniformly spraying enzyme liquid, and covering by using fresh weeds without roots until the Insects Awaken of the next year; B, cutting: cutting within seven days in the Insects Awaken and after the Insects Awaken, covering the roots again by using the weeds only without watering during the cutting; C, field management: cutting the weeds of which the height exceeds 250 mm and the roots are kept every month, and covering the roots of the plants and the inter-ridge again by using the cut weeds; and D, harvesting: harvesting mature fruits after the Autumnal Equinox, and picking all fruits until the Slight Snow, comprising the immaturate fruits; cutting the weeds and keeping the roots once every four months in the next year; and irrigating once in the special dry weather. The planting method for the roselle is capable of solving the problems that there are varieties of the planting agriculture fertilizers for the roselle currently, and the quality is poor.

The invention relates to a flue-cured tobacco float seedling breeding method using novel substrate. The method includes: the substrate is placed in the cavity of a seedling tray, the whole seedling tray is placed on nutrient solution, and the nutrient solution supplies growth nutrition to a tobacco seedling planted in the cavity of the seedling tray through the bottom hole of the seedling tray; clean water is added to a nursery pond to reach 6-8cm of the depth of the pond after sowing, special seedling breeding fertilizer is added to the water in the pond to mix into nutrient solution A when the emergence rate reaches about 50%, namely the nutrient solution A is used when from emergence to a grand cross period; the seedling tray is allowed to float on the surface of the nutrient solution A; 0.1% humus acid is sprayed for one to two times from the grand cross period to a rooting period of the tobacco seedling; nutrient solution B is used from the rooting period to a seeding formation period; the nutrient solution is kept to reach 8-10cm of the depth of the pond until seedling formation is completed. The seedling breeding method is low in cost, simple to operate, easy and safe in material obtaining, good in tobacco seedling quality, suitable for large-area popularization and application and promising in popularization and application prospect; the seedling breeding cost of each seedling tray is lowered by about 2.6 yuan as compared with that of conventional flue-cured tobacco float seedling breeding, and the decreasing amplitude reaches 46%.

The invention belongs to the technical field of soil remediation, and particularly relates to a preparation for repairing petroleum hydrocarbon pollutants and an application of the preparation. The preparation is prepared through fixing microorganisms in charcoal materials obtained through splitting, wherein the single carrying capacity of the microorganisms in the coal materials is 3.2-6.5*10<10>cfu / g, and the microorganisms are acinetobacter sp. HC8-3S and Dietzia sp.N3ZF-1 CN-3. Surfactant cleaning liquid compounded from the preparation is high in cleaning efficiency and small in soil remaining. The prepared charcoal immobilized microorganism material has the advantages that the fixing rate is high, the production cost is low, soil microecological environment improvement is promoted, and secondary pollution is not caused to environment, and the preparation is used for repairing soil polluted by petroleum and petroleum products.

The invention belongs to the technical field of microbial preparations, and particularly relates to a soil conditioner as well as a preparation method and application thereof. The soil conditioner isprepared from, by mass, 25-35 parts of calcined ore powder, 15-20 parts of light calcium carbonate, 15-20 parts of wheat bran powder, 10-20 parts of bone meal, 10-15 parts of plant ash and 2-5 parts of a microbial inoculum. The microbial inoculum comprises bacillus mucilaginosus. The acid soil conditioner provided by the invention can be used for quickly and effectively improving acid soil; the problems of soil hardening and continuous cropping can be solved, the soil fertility is improved, the resistance of crops is enhanced, and diseases are reduced.

The invention discloses an organosilicon-rich microbial organic compound fertilizer and a preparation method thereof. The organosilicon-rich microbial organic compound fertilizer is prepared from 40-60 parts by weight of feces of livestock and poultry, 40-60 parts by weight of a silicon-rich plant, 40-60 parts by weight of domestic fungus waste, 40-60 parts by weight of minerals, 20-30 parts by weight of vitamins and 1-10 parts by weight of a complex microbial inoculum. The organosilicon-rich microbial organic compound fertilizer can provide enough minerals such as organosilicon and beneficial substances such as vitamins and probiotics for crops, improve soil, prevent diseases, kill bacteria, utilize a lot of wastes, change waste into valuables, save social and natural resources, protect the environment and realize circular economy. The organosilicon-rich microbial organic compound fertilizer is one of the optimal organic fertilizers for production of pollution-free foods, green foods and organic foods.

The invention provides a treating method for removing trace heavy metal and trace F-53B in electroplating wastewater treatment effluent. By setting a microorganism degradation zone, nitrogen and phosphorus and a part of organic matters in industrially treated wastewater can be removed by utilizing compound microorganisms; by setting an algae adsorption zone, trace organic matters in wastewater canbe adsorbed by utilizing algae cells, and refractory trace organic matters in the wastewater can be fixed; by setting an intercepting net and filling volcanic, carbon residue and magnetite residue, heavy metal in the wastewater can be synergistically reduced; by setting an emergent plant zone, a floating plant zone and a submerged plant zone, ecologic degradation can be further carried out on a water body. A device can also be arranged in a natural river channel, so that the natural river channel can be repaired, the visibility of the water body can be improved, and enrichment of the heavy metal and the refractory organic matters in aquatic animals and plants can be reduced.

The invention discloses a method and a system for irrigation. The method is characterized in that a depression terrain is treated and laid with an anti-seepage film, so as to form a reservoir; after rainwater is collected into the reservoir, the rainwater is led into a water storage tank, filtered and then connected to a moistening-irrigating water feeder through a pipeline; the moistening-irrigating water feeder is put below plant roots; and water is conveyed to the plant roots through a moistening guide pipe of the moistening-irrigating water feeder. The invention provides a novel efficient water-saving damp irrigation technique saving more water, which has the advantages that the technique can automatically regulate water with atmospheric precipitations in damp areas so as to continuously guarantee the water needed by plant growth. The technique of the invention can guarantee the survival and normal growth of plants (crops) to the utmost extent, and can grow the plants (crops) with high economic value or good ecological benefit, such as watermelon, cucumber and other plants of a fibrous root system, as well as fruit trees, forest trees and other plants of a taproot system, so as to achieve the aims of restoring ecosystem and increasing the income of farmers.

The present invention provides an intercropping mode for eliminating continuous cropping disturbance of crops, and is a technique and method for overcoming or eliminating continuous cropping blight of watermelon, etc. by utilizing crop intercropping system. It is characterized by that it makes the crops of modan paddy rice and watermelon, etc. with serious continuous cropping blight implement intercropping mode so as to overcome or eliminate the continuous cropping blight.

The invention discloses a loess tableland ecological management structure additionally realizing solar energy utilization. The loess tableland ecological management structure comprises a slope body; the slope body comprises a slope surface and a slope crest; the slope crest is provided with a slope crest canal; a plurality of sand drains are uniformly distributed at the bottom of the slope crest canal; a water storage structure is further arranged inside the slope body; the sand drains communicate with the water storage structure; a water pump B is arranged inside the water storage structure;the bottom of the slope body is provided with a slope bottom canal; one side of the slope bottom canal is provided with a water collection tank; the water collection tank is used for collecting waterinside the slope bottom canal; a water pump A is arranged inside the water collection tank; the water pump A and the water pump B are both powered by a solar power generation unit; the slope crest andthe slope surface are each provided with an afforestation unit in a laying manner; and the water pump B is used for pumping out the water inside the water storage structure and the water inside the water collection tank so as to implement trickle irrigation on the afforestation unit on the slope surface. The invention further provides a loess tableland ecological management method additionally realizing solar energy utilization. The loess tableland ecological management structure and the loess tableland ecological management method disclosed by the invention solve the problem about drought caused by deficiency of water or flood caused by too much water of a loess tableland in different periods.

The invention relates to a method for planting forage grass on a sunward side of hillside land with the slope greater than 15 degrees in an alpine mountainous area. The method comprises the steps thatthe forage grass is planted in a rotation place in the alpine mountainous area with the altitude of 2,000-2,500 m in the southwestern Yunnan province of China, the sunward-side hillside land with theslope greater than 15 degrees is selected as the rotation place, and after former crops are harvested, the forage grass is planted; forage grass planting is conducted by adopting the mode that 9-11%of annual ryegrass seeds, 18-22% of perennial ryegrass seeds, 9-11% of hybrid ryegrass seeds, 28-32% of dactylis glomerata seeds, 28-32% of trifolium repens seeds and base fertilizer are mixed and sowed, and grazing can be conducted when the forage grass grows till the height of a grass layer exceeds 5 cm; when the forage grass is surplus, the harvested forage grass is dried and prepared into green hay or silage, and the stubble height during grass harvesting is 5 cm. The method for planting the forage grass in the alpine mountainous area has the advantages that the method is suitable for being implemented in the southwestern Yunnan province of China, and the forage grass is quick in propagation, good in growth and significant in ecological restoration effect.

The invention relates to a technology of punching at a hard bottom for a submerged plant and belongs to the technical field of water ecological rehabilitation. The pointed culturing of the submerged plant can be realized under the conditions of a hard substrate and an extremely low water transparency by the collection, sorting, culture pan culturing, underwater punching and planting of a germchit; the technology is simple and easy, has a high surviving rate, can change the partial water quality condition by scale planting, realize the self-surviving and developing as well as achieve the goals of improving the environment and rehabilitating the ecology. The technology is particularly suitable for culturing the pioneer species of the submerged plant in a water ecological rehabilitation project under the covering condition of seasonal cyanobacterial blooms caused by the eutrophication of lakes. The adaptive water depth can achieve more than 3m.

The invention discloses a method for restoring a degenerated saline wetland through intercropping of tamarix chinensis and suaeda heteroptera. The method includes the following steps of firstly, selecting a coastal degenerated saline wetland with salt content of 0.5-1% in a Yellow River Estuary, and irrigating the coastal degenerated saline wetland where tamarix chinensis cuttings are planted. Local saline-alkaline tolerance plants, namely tamarix chinensis and suaeda heteroptera, are selected as the species for ecologically restoring the coastal degenerated saline wetland, the two species oftamarix chinensis and suaeda heteroptera are intercropped, the stability of an ecologic system can be greatly improved, the forward succession of the ecologic system is promoted, the operation methodis simple, the survival rate of tamarix chinensis reaches 95%, the ecology of the saline land can be rapidly restored, the tamarix chinensis and suaeda heteroptera can be used for high-quality papermaking raw materials and promote the development of the local papermaking industry, the emergence rate of suaeda heteroptera is 90% or above, suaeda heteroptera can reduce soil salt content and can alsobe used as vegetables and feed, dual purposes are achieved, economic and ecologic benefits are remarkable, and the method can be applied and popularized in the heavy saline land in the Yellow River Delta.

The invention relates to the technical field of environmental protection, and discloses a riverway ecological restoration device and a using method thereof. The device comprises: a bottom plate; fourpositioning rods fixedly connected to the four corners of the bottom of the bottom plate correspondingly; four supporting rods detachably arranged at the four corners of the top of the bottom plate correspondingly; a driving mechanism detachably arranged at the tops of the supporting rods; and a reoxygenation mechanism detachably arranged in the middles of the outer walls of the supporting rods. Aeration and reoxygenation of urban river water can be realized, reproduction of aquatic plants and animals in the water is promoted, water ecology is restored, the quality of domestic water is improved, harm to air is removed, and restoration and use of the urban river water are facilitated.

The invention discloses a sewage irrigation system of alternation of wetting and drying with nitrogen and phosphorus removing function, wherein the sewage irrigation system of alternation of wetting and drying with nitrogen and phosphorus removing function comprises an irrigation system (1) and a pollution discharge system (2) arranged in the irrigation system (1); the pollution discharge system (2) comprises a sewage taking region (21), a carbon source layer (22), an anaerobic layer (23), a pollution discharge reaction layer (24), a filtering layer (25), a bracket layer (26) and a clean water discharge region (27) orderly arranged in a lateral canal (5) from the upper side to the lower side; the lateral canal (5) has slope, the slope of the pollution discharge system (2) is the same with the slope of the lateral canal (5); and the sewage taking region (21) is provided with a plurality of subsection water gate (28). The sewage irrigation system of alternation of wetting and drying with nitrogen and phosphorus removing function is reasonable in design, high effective in nitrogen and phosphorus removing operation and low in cost; the existing irrigation can be improved for saving the land, and the system is suitable for wide popularization and application.

The invention relates to an attractive core of an insect sex attractant and discloses an attractive core for preventing and controlling homoeosoma nebulella hubner. The attractive core comprises a sustained-release carrier and a sex attractant contained in the sustained-release carrier, wherein the sustained-release carrier is a cuff-type rubber plug or a plastic tube with internal diameter of 0.1 to 3 mm; and the sex attractant comprises 0.1 to 1.0 mg of cis-13-octadecene aldehyde, 0.1 to 1.0 mg of cis-11-hexadecene aldehyde, 0.1 to 1.0 mg of cis-9-trans-12-tetradecadienoic aldehyde, 0.1 to 1.0 mg of cis-9-tetradecene aldehyde and a proper amount of antioxidant. A field moth-trapping experiment shows that the attractive core of the insect sex attractant has a strong action of attracting the males of the homoeosoma nebulella hubner in the field, and the change of the moth-trapping quantity can reflect the syngenetic succession of the homoeosoma nebulella hubner in the field timely and accurately. The attractive core for preventing and controlling the homoeosoma nebulella hubner has the advantages of safe and environmentally-friendly use, convenient operation, obvious preventing and controlling effect, no harm to human beings, livestock and environments and obvious social and ecological benefits.