87results about How to "Improve eco-efficiency" patented technology

The invention discloses an ecological pontoon device and method for removing heavy metal in a water body, and relates to the technical field of sewage treatment.The ecological pontoon device comprises an overwater moving platform, a power propeller, a self-cruising module assembly, a heavy metal ion removing assembly and a control system, and the power propeller is installed at the bottom of the overwater moving platform; the self-cruising module assembly is mounted on the water mobile platform; the heavy metal ion removal assembly comprises an acrylic square groove formed in the water moving platform, ecological filler filled in the acrylic square groove and a micro diaphragm water pump installed between the acrylic square groove and the water moving platform, and the micro diaphragm water pump is suitable for pumping water from the lake into the acrylic square groove. The water is filtered by the ecological filler and is pumped back to the lake body again; the control system is electrically connected with the power propeller and the self-cruise module assembly. According to the method, heavy metal ions in the water body can be effectively removed, and the efficiency can be remarkably improved while the cost is reduced.

The invention discloses a high-efficiency artificial cultivation method for gordon euryale seeds in northeast marsh, and belongs to the technical field of production and cultivation of economic plants in marsh, the method comprises the following steps: 1, selecting and germinating wild seeds; 2, seedling raising and temporary planting; 3, field transplanting and field planting; 4, growth management and harvesting. According to the method, the maturing rate of the gordon euryale seeds can be remarkably increased only by adopting a scientific method during transplanting, keeping the plant spacing and reasonably regulating and controlling the water level after transplanting, operation is easy and convenient, and the seed yield per unit area is increased by 5%. The method can effectively solve the problems of low survival rate, uneven growth vigor and unstable yield of wild gordon euryale seeds in northeast marsh.

The invention relates to the technical field of moss cleaning in sewage treatment, and discloses a method for cleaning moss in a sedimentation tank, which comprises the following steps: S1, pretreating moss, and converting the moss into a state convenient to remove by physical and chemical methods; s2, spraying treatment: spraying the moss with reclaimed water containing sodium hypochloride in a temperature range of 20-30 DEG C; s3, performing ultraviolet irradiation, namely performing ultraviolet irradiation on the obtained first moss; s4, inhibiting the growth of moss, namely performing post-treatment on the second moss to inhibit the growth of the second moss; s5, waste is cleaned, moss residues, cleaning agents and other waste generated in the cleaning process are cleaned in time, influences of the residues on water quality are avoided, and moss is prevented from growing again. Through a physical and chemical combined mode, loose moss in the sedimentation tank is effectively removed firstly, then a solution containing sodium hypochloride is used for spraying the moss, it is ensured that all moss patches are in uniform contact, and the ideal chemical cleaning effect is achieved.

The invention relates to the technical field of carbon emission, in particular to a ground cover plant assembly type module generation method and device.The method comprises the steps that plant demand parameters, input by a user, of a target laying area are obtained, and the plant demand parameters at least comprise growth habits, environment demands, ecological functions, ornamental characteristics and economic cost; the growth habits are used for indicating morphological characteristic types of the plants, the environmental requirements are used for indicating environmental conditions required by plant growth and survival, the ecological functions are used for indicating roles and contributions of the plants in an ecological system, and the ornamental characteristics are used for indicating aesthetic values and ornamental potentials of the plants. The economic cost is used for indicating economic factors of plant cultivation, maintenance and use; matching a combination of various plant data from a database according to the plant demand parameters; and determining at least one of the combinations of the multiple plant data as a target plant combination, and generating a ground cover plant assembly type module according to the target plant combination. According to the scheme, the ground cover plant selection accuracy can be improved.

The present invention relates to the technical field of ecological concrete slurry, and specifically to an ecological seed-carrying slurry for the slope of a mine dump, a preparation method and its application. Aiming at the special environmental characteristics of the Inner Mongolia mining area, the present invention prepares a new type of artificial aggregate containing growth domains and seeds, which is composed of a three-layer structure, each layer having a specific function, so as to achieve the purpose of promoting the germination of multi-source species, plant growth, providing nutrition and improving the soil environment. The slurry can not only effectively utilize solid waste and reduce costs, but also adopts in-situ point-type layered hole sowing to shorten the vegetation restoration cycle in the ecological restoration of the slope, greatly improve the survival rate of tree and shrub seed sources, reduce the number of watering times, save restoration costs, and reduce the workload of management. While effectively promoting vegetation restoration, it strengthens the stability of the slope, prevents soil and water loss, slows down runoff and consolidates the soil, providing an efficient and sustainable solution for the ecological restoration of green mines in Inner Mongolia.

The invention discloses a semi-solid-state complex no-tillage dry direct seeding method for crop seeds. The no-tillage dry direct seeding method comprises the following steps: S1, keeping a water layer of 1cm-5cm in a ditch, and paving straws obtained by harvesting preceding crops on a ditch surface; S2, applying a base fertilizer on the ditch surface paved with the straws and cleaning the ditch; S3, seeding the crop seeds on the ditch surface, and mixing the crop seeds with semi-solid-state biomass materials, a compound fertilizer and a biopesticide before seeding before seeding seeds, wherein the mixing mass ratio is that the crop seeds to the semi-solid-state biomass materials to the biopesticide is (1-10) to (70-800) to (1-3), and the moisture content of the semi-solid-state biomass materials is 40%-80%; and S4, after seeding the seeds, keeping the ditch surface at a dry state for 3-7 days. According to the semi-solid-state complex no-tillage dry direct seeding method, tillage and combustion of winter crop straws are not carried out, a whole land of field immersing water is not used for irrigation and the water immerses after the seeding, and the biological benefits are obvious; the working energy consumption is reduced, stubbles are not killed by pesticides, haze is reduced and the irrigation water is reduced.

The invention discloses an irrigation control method and system based on a typical sand-fixing plant water demand rule, and relates to the technical field of irrigation control, and the method comprises the steps: collecting sand-fixing plant information and external factor data in real time, and building a water demand rule model of sand-fixing plants according to the collected sand-fixing plant information; the rainfall water collection efficiency of the photovoltaic field area is analyzed by using the collected external factor data, and the water collection efficiency under different rainfall intensities is quantified; dynamically adjusting the irrigation amount, time and frequency according to the water demand rule model, soil humidity and rainfall water collection efficiency data of the sand-fixing plants in combination with rainfall water collection data, meteorological information and plant water demand data which are acquired in real time; and an irrigation control strategy is fed back and adjusted by evaluating plant growth, yield and water resource utilization efficiency. According to the invention, sand stabilization plants in the photovoltaic electric field are irrigated as required in a drought environment, so that water resource waste caused by excessive irrigation is avoided, and plant growth limitation caused by insufficient irrigation is also prevented.

This invention discloses a cultivation method for improving the quality of *Pleurotus ostreatus* fruiting bodies, comprising the following steps: 1) Preparation of fruiting culture medium: mixing 15%–35% cotton residue, 25%–35% sawdust, 15%–30% rice husks, 10%–30% corn cobs, and 1% lime, and setting aside; 2) Composting and fermentation; 3) Secondary fermentation in a greenhouse; 4) Sowing; 5) Mycelial growth; 6) Covering with soil; 7) Inducing fruiting bud formation; 8) Growing mushrooms: after fruiting buds form, controlling the air temperature in the mushroom house to drop to 13–15℃, while maintaining the medium temperature at 15–16℃, to cultivate fruiting body growth; 9) Harvesting promptly when the fruiting bodies reach 7–8 maturity and are 4.5–5.5 cm in height to obtain *Pleurotus ostreatus*. This scheme uses cotton residue and sawdust as mushroom cultivation materials. After the mushroom buds are formed, the air temperature in the mushroom house is controlled at around 13℃ and the material temperature at around 16℃, which greatly improves the quality of the fruiting bodies, thereby increasing the rate of high-quality mushrooms to 65%-71%. The rate of high-quality mushrooms is twice that of ordinary culture materials used in field cultivation. At the same time, it effectively utilizes cotton residue and sawdust, resulting in significant economic and ecological benefits.

The invention relates to the technical field of soil remediation, in particular to a method for remediating soil of a high-altitude abandoned mine through longleaf thyme herb. The method comprises the following steps: (1) applying a pH regulator to soil, and turning over to regulate the pH of the soil to 5.7-6.5; (2) a soil conditioner is applied to the soil ploughed in the step (1), ploughing is conducted, watering is conducted once every day, and watering lasts for 10-30 days; (3) applying a compound fertilizer to the soil ploughed in the step (2), and ploughing; and (4) planting the thyme longissimum in the soil ploughed in the step (3), and applying a complex microbial inoculant. The method disclosed by the invention has a good remediation effect on the abandoned mine soil in the high-altitude area, is relatively low in cost and also has certain economic benefits.

The utility model discloses a vegetation concrete river channel slope protection structure which comprises a vegetation concrete slope protection face, a water conduction system and a purification module. The purification module can intercept rainwater and spray water flowing down from the vegetation concrete slope protection surface, the rainwater and the spray water are further filtered through the geotechnical cloth filter layer and the pervious concrete partition wall after being precipitated through the sewage collection tank, and therefore the purpose of further purification is achieved. The water can flow into the water body through the water guide pipe; and the water can be sprayed on the vegetation concrete slope protection surface through the spraying pipe, so that water necessary for growth can be provided for the vegetation concrete slope protection surface, and the vegetation concrete slope protection surface can be purified by fully utilizing the purification capacity of the vegetation concrete slope protection surface.

The invention discloses a method for imitating wild cultivation of dictyophora rubrovolvata by using a withered bamboo resource. The method comprises the following steps: digging a groove downwards in a soil layer in a gap of a square bamboo forest; stacking a water collecting layer at the bottom of the groove; a lower filling layer composed of broken bamboo residues is laid on the water collecting layer; a middle filling layer formed by uniformly mixing broken bamboo residues and humus soil is laid on the lower filling layer; a culture groove is erected on the middle filling layer in the length direction of the groove and used for cultivating dictyophora rubrovolvata; paving a layer of culture material prepared in advance in the culture tank, punching a plurality of holes in the periphery of a dictyophora rubrovolvata fungus stick, clamping the dictyophora rubrovolvata fungus stick in the middle of the culture material, and uniformly scattering the fungus material in the dictyophora rubrovolvata fungus stick on the surface of the culture material; covering the middle filling layer and the culture material with an upper filling layer formed by sandy loam; and a covering layer covers the surface of the upper filling layer. The method has the advantages of high resource utilization rate, obvious economic benefit and obvious ecological benefit, can realize long-acting moisturizing and nutritional supplement, and can produce mushrooms for many years.

The invention belongs to the technical field of repairing of solid waste treatment and disposal, and particularly relates to a large-volume pyrite slag in-situ curing and final covering structure and a repairing method. The remediation method comprises the following steps: evaluating the waste residue mass in a project area, and evaluating the waste residue pollution stability; an original waste residue point in-situ curing method is adopted, and implementation is carried out by selecting a stabilizer and leaching engineering; an original waste residue point final covering method is adopted, and an anti-seepage layer is formed by laying an anti-seepage geotextile mold; according to the method, an ecological restoration method is adopted, soil stabilization treatment is carried out through a soil covering and backfilling method, and ecological restoration is carried out through nursery stock selection, soil selection and cultivation key points; therefore, a stable and efficient comprehensive treatment method for large-volume pyrite waste residues, which adapts to environmental factors such as local climate, terrain, soil and the like, is established.

The utility model relates to a sponge city bridge mid-division zone planting structure with a water storage function, which comprises a planting soil layer, a first geotechnical cloth layer, a coarse sand layer and a ceramsite layer which are sequentially paved in a mid-division zone from top to bottom, and further comprises a second geotechnical cloth layer, a grating frame, a plurality of water cotton ropes, an overflow pipe and an overflow pipe grate, the grid frame is arranged at the bottom of the bridge median strip, the ceramsite layer is filled in the grid frame, the second geotechnical cloth layer is arranged between the planting soil layer and the inner side wall of the bridge median strip and between the coarse sand layer and the upper end of the grid frame, and the water cotton rope is arranged in the ceramsite layer in the grid frame below the second geotechnical cloth layer. The overflow pipe is pre-buried in a side wall retaining wall of the bridge mid-division zone, and the overflow pipe grate is arranged at one end, located on the inner wall of the mid-division zone, of the overflow pipe in a communicating manner. By additionally arranging the geotechnical cloth, the water cotton rope and the grating frame, the problems of planting soil layer loss and damage of plant root systems to a bridge waterproof layer can be solved, manual irrigation and natural rainwater can be stored, the plant planting environment is improved, and the ecological benefits of sponge are increased.

The invention discloses a saline-alkali soil improvement method based on a low-salt organic material. The method comprises six steps of saline-alkali soil detection, organic material selection, organic material pretreatment, organic material application, soil irrigation and soil pH value adjustment. According to the steps of organic material pretreatment and organic material application, it is ensured that the saline-alkali soil fertilization improvement effect is good, the method has the advantage of being good in improvement effect, and the problems that in the using process of an existing saline-alkali soil improvement method, in the using process, low-salt organic materials are inconvenient to efficiently improve the saline-alkali soil, and the soil quality is poor are solved. The problems that if low-salt organic materials cannot be fully utilized, the soil improvement effect may not be obvious, soil salinity cannot be effectively reduced, the soil structure cannot be effectively improved, supplement of the organic materials is lacked, the organic matter content of the soil is difficult to increase, and the fertility and the water and fertilizer retention capacity of the soil are affected are solved.

The invention discloses a preparation method of a biochar soil conditioner based on agricultural and forestry waste, and relates to the technical field of agricultural resource utilization and soil improvement, the method comprises the following steps: S1, selecting suitable raw materials based on physicochemical characteristics of specific agricultural and forestry waste, and performing pretreatment, the method comprises the following steps: S1, pretreating raw materials, S2, carrying out high-temperature pyrolysis on the pretreated raw materials to form biochar, S3, regulating and controlling the mixing ratio of the biochar to an additive based on target soil trace element and organic matter requirements, and S4, carrying out curing and grinding treatment on the mixed material to obtain a conditioner finished product. According to the preparation method of the biochar soil conditioner based on the agricultural and forestry wastes, the soil microbial activity is enhanced, the remediation and long-term stability of a soil ecosystem are promoted, the resource utilization of the wastes is realized, and the biochar soil conditioner has good ecological benefits and sustainability; and the problems of soil nutrient balance and fertility durability can be solved by optimizing and regulating the supplement proportion of trace elements and organic matters.

The utility model discloses a kind of for shrimp culture's ration feeding device, the utility model relates to aquaculture technical field;Including: base, the top of the base is fixedly connected with support structure, the outer wall of the support structure is fixedly connected with storage hopper and discharge structure;The discharge structure includes drive motor, the output shaft of the drive motor is fixedly connected with connecting rod, the bottom of the connecting rod is fixedly connected with discharge block, the top of the discharge block is evenly provided with a plurality of discharge holes, the bottom of the discharge block is fixedly connected with feeding structure, the top of discharge block evenly provided with a plurality of discharge holes, with the connecting rod rotation of drive motor drive, can the feed in storage hopper ration delivery to feeding structure, compared with the mode that traditional artificial is estimated feeding amount by experience, effectively avoid the feed waste and water pollution caused by feeding too much, and the problem that feeding deficiency affects the growth of prawn.

This invention discloses the application of the apple MdWRI1 gene in regulating the wax content of apple fruits and leaves, belonging to the field of plant genetic engineering technology. This invention isolates an MdWRI1 gene with high expression levels in apple varieties with high wax content, its nucleotide sequence of which is shown in SEQ ID NO.1. Subcellular localization revealed that the transcription factor expressing the MdWRI1 gene is located in the cell nucleus. Experimental results show that overexpression of the MdWRI1 gene can significantly increase the wax content of apple fruits and leaves by promoting wax biosynthesis, indicating that the MdWRI1 gene plays a key role in regulating the wax content of apple fruits and leaves. This invention provides an efficient and rapid approach for apple breeding, provides genetic material for improving apple quality, and has broad application prospects in improving the economic and ecological benefits of apple cultivation.

The invention belongs to the technical field of high-temperature greenhouse closing, and discloses an economical and environment-friendly facility pepper in-situ high-temperature greenhouse closing method. Comprising the following steps: (1) watering a large amount of water once 7 days before high-temperature greenhouse closing, and harvesting the last fruit; (2) the damage condition of the greenhouse film is checked and repaired in time, then the greenhouse film is closed, and high-temperature greenhouse closing is implemented; (3) cleaning the plants after the high-temperature greenhouse is closed for a period of time, pulling up the dry plants by using a seedling puller in the morning, cleaning fallen leaves, moving the plants out of the greenhouse, and putting the plants in an appointed place; and (4) after cleaning is completed, high-temperature greenhouse closing continues to be conducted till soil is dry, hard and cracked, and high-temperature greenhouse closing is completed. Compared with a traditional method that seedlings need to be pulled and cleaned in advance, high-temperature greenhouse closing is carried out in situ, no pesticide needs to be used, the method is economical and environmentally friendly, cost is reduced, operation is simple and easy, efficient sterilization and deinsectization can be achieved, mutual propagation of diseases and pests and subculture propagation are prevented, and ecological benefits are remarkable.

The application discloses a kind of complex tide river network's multi-source compound disaster inundation risk simulation method, contains the construction method of astronomic tide-storm surge-flood-salinity-falling multi-scale dynamic process full coupling model, can analyze complex river network in climate change scenario mountain torrent, storm surge, salinity and rainstorm etc. extreme compound disaster's inundation and salinity upstream risk.Through potential inundation area determination, model grid optimization, numerical format setting and parallel acceleration etc. technical means, on the basis of guaranteeing momentum and material flux conservation in river network, maximum degree optimizes calculation efficiency, can realize in estuary-coastal cross-scale spatial region high-precision simulation of the purpose of giving priority to multi-source disaster inundation and saltwater stratification.Based on the application, the problem that water dynamics, salinity, relatively isolated nearshore complex topography cannot interact in traditional simulation can be solved, technical support is provided for scientific evaluation of estuary area multi-source disaster risk and return period, with outstanding social benefits and disaster prevention and mitigation economic benefits.

The invention discloses an artificial fish reef and an artificial fish reef putting method, and belongs to the technical field of water ecological restoration and fishery engineering. The artificial fish reef comprises a reef body, an anchoring structure and a take-up structure. The reef body is of a reinforced concrete frame structure, a bottom plate is closed, other faces are open, protective nets and cross beams are arranged on the side portions, the cross beams are connected through connecting rods, and planting boxes can be installed on the connecting rods. The anchoring structure comprises an anchor hook and an anchor chain, and the take-up structure comprises a take-up box, a take-up roller, a spring and a spring trigger assembly. Through cooperation of the trigger rod and the limiting rod, automatic retracting, releasing and anchoring of the anchor chain are achieved, the structure is stable, installation is convenient and fast, water flow scouring can be effectively reduced, the survival rate of submerged plants is increased, a spawning and inhabiting place is provided for fishes, and the fish gathering effect is remarkably improved.

This invention discloses a flexible protection structure for modified and reinforced surface soil slopes of high-fill embankments and a method for stability prediction. The protection structure includes a multi-level platform slope and a drainage structure. The top of each platform is a flexible retaining structure, which is constructed in layers of low-dosage modified soil. Each layer of low-dosage modified soil is wrapped by a layer of geogrid. Vertical steel beams for support are installed inside the flexible retaining structure at the toe of the slope. The slope of the multi-level platforms is filled with high-dosage modified soil. The drainage structure includes a mesh-like water collection and interception structure, T-shaped drainage pipes, and drainage boards. This invention fully utilizes the skeletal function of the slope protection structure, the erosion and softening prevention function of the drainage structure, and the flexible retaining structure to protect high-fill embankment slopes in hot and humid southern regions under the premise of low construction cost, fast construction speed, and guaranteed construction quality.

The invention belongs to the technical field of prevention, drainage and water storage, and discloses a planting roof drainage and water storage system which comprises an intelligent drainage module, an intelligent water storage module, an environment monitoring and regulating module and a plant growth assisting module. The intelligent drainage module, the intelligent water storage module, the environment monitoring and regulation module and the plant growth assisting module cooperate with one another, and intelligent management of the planting roof water prevention, drainage and storage process and optimization of the plant growth environment are achieved. Through mutual cooperation of the intelligent drainage module, the intelligent water storage module, the environment monitoring and regulation module and the plant growth assisting module, comprehensive intelligent management of the planting roof water prevention, drainage and storage process and precise optimization of the plant growth environment are achieved. In practical application, each module dynamically adjusts the operation state according to data monitored in real time, and the defect that each part of a traditional planting roof system operates independently and is lack of collaboration is avoided.

The application discloses a strain of rice endophytic wilkamp clavula GLARF-10, a biological preparation thereof and application of the strain in the prevention and treatment of rice blast, and belongs to the technical field of biological pesticides. The wilkamp clavula GLARF-10 is preserved in the Guangdong Microbial Culture Collection Center on December 31, 2024, and has a preservation number of GDMCC No: 65695. The fermentation liquor or supernatant of the wilkamp clavula GLARF-10 is used for preparing a corresponding biological preparation; the wilkamp clavula GLARF-10 and the biological preparation thereof are applied in the prevention and treatment of rice blast. The application is mainly used for inhibiting the normal growth of Magnaporthe oryzae, has an excellent potential biocontrol effect on the prevention and treatment of rice blast, and has a small influence on the ecological environment by spraying the fermentation liquor or supernatant of the strain to rice tissues for the prevention and treatment of rice blast; the strain has low culture condition requirements and has a good development and application prospect.

The invention provides a fermented feed for feeding nursery pigs as well as a preparation method and application of the fermented feed. The preparation method comprises the following steps: mixing a fermentation substrate, a fermentation additive, zymophyte and a fermentation enzyme to obtain a mixed material; performing anaerobic fermentation on the mixed material to obtain a fermented feed; wherein the fermentation substrate comprises corn DDGS, rice bran meal, bran and wheat, the fermentation additive comprises yeast cell walls and yeast powder, the zymophyte comprises saccharomycetes, lactic acid bacteria and bacillus, and the fermentation enzyme comprises protease and cellulase. The fermented feed provided by the invention can solve the problem of lack of corn and soybean meal-free feed suitable for nursery pigs in the prior art, and is suitable for the field of animal feed; the feed is applied to nursery pigs in a liquid feeding manner, can improve the growth performance, improve the intestinal health, enhance the immunity and increase the breeding benefits, and has a wide application prospect.

The invention belongs to the technical field of agriculture, and relates to a rice cultivation method for reducing nitrogen fertilizer and improving rice quality. According to the rice cultivation method, the usage amount of chemical nitrogen fertilizer is effectively reduced, the level of reducing the application amount of the chemical nitrogen fertilizer by 10% or above is achieved, nitrogen fertilizer non-point source pollution is remarkably reduced, and the ecological environment is protected. Meanwhile, on the basis that the rice yield is maintained or even increased, the quality of the rice is remarkably improved, and indexes including head rice rate, transparency, polished rice rate, brown rice rate and the like are superior to those of a traditional method. By using the microbial insecticide, green and efficient pest control is realized, and the use frequency of the pesticide and the influence on the environment are reduced. According to the method, conventional agricultural planting and management measures are adopted, operation is easy and convenient, the method is easily accepted and implemented by farmers, the agricultural production cost is effectively reduced, and economic benefits are improved.

The utility model discloses a wet woody ecological floating island and green building material fusion system which comprises a floating disc, four sets of floating columns are fixedly installed on the lower surface of the floating disc, an installation groove is reserved between every two sets of floating columns, a falling stabilizing mechanism is fixedly installed on the lower surface in each installation groove, a planting basket is arranged on the upper surface of the floating disc, and water holes are formed in the lower surface of the planting basket. A bundling mechanism is rotationally mounted on the upper surface of the floating disc, is flush with a planting opening of the planting basket, and can synchronously retract inwards to bundle the planted plants. Through the design of the bundling mechanism, the bundling mechanism can exert a supporting effect on the planted plant, the supported plant can keep vertical growth, the root system can be firmly fixed in the planting basket, the plant can fully utilize illumination and fully absorb nutrient substances in water, and then the growth speed and yield of the plant can be increased.

The invention discloses a regeneration method of nickel-phosphorus alloy electroplating waste liquid. The content of phosphite in the waste liquid is greater than 40 g / L; phosphate is greater than 15 g / L; the total phosphorus element content is greater than 25 g / L; the method comprises the following specific steps: diluting the waste liquid, and adding a sulfuric acid solution with the concentration of 15-20wt%, so that the pH value of the waste liquid is less than 2; adding an oxidizing agent to oxidize phosphite radicals into phosphate radicals; adding a precipitant ferrous sulfate solution to form ferric phosphate precipitate; adding a sodium hydroxide solution, and adjusting the pH value of the waste liquid to 3.0-3.5; cooling, standing and filtering to obtain a filtered clear liquid; and adding a main salt, a complexing agent and a phosphorus increasing agent into the filtered clear liquid to obtain a regenerated liquid, and finally adjusting the pH value of the regenerated liquid to 2.7-2.9 by using a sulfuric acid solution, so that the regenerated liquid meets the plating requirements. The regenerated plating solution has the indifferent system effect on a plated workpiece from a new plating solution, and the service life of the electroplating nickel-phosphorus alloy plating solution can be remarkably prolonged.

The present application belongs to the poplar plantation technical field, and particularly relates to a poplar plantation structure optimization and sustainable management method and system. The method comprises the following steps: S1, constructing a growth model of poplar, and dividing the poplar into three stages of a juvenile stage, a middle-aged stage and a near-mature stage according to the growth model; S2, collecting site factor data; S3, dividing the research area into multiple site grade areas, and configuring differentiated growth parameters, rotation periods and felling intensities for the site grade areas; S4, building a multi-objective linear programming model, and the objective function covers maximization of total wood yield, minimization of management cost and maximization of ecological benefit; S5, linearly fitting the juvenile stage, the middle-aged stage and the near-mature stage to obtain the corresponding linear equations of the stages, embedding the linear equations of S2 into the multi-objective linear programming model as constraint conditions, and clearly defining the forest age range of each stage; and S6, solving the multi-objective linear programming model to obtain optimal felling area, rotation period and felling intensity parameters.

This invention discloses a fermentation agent for treating agricultural ecological solid waste, its preparation method, and its application, belonging to the field of microbial technology. The fermentation agent of this invention comprises compound functional bacteria, soybean meal, molasses, disodium hydrogen phosphate, corn straw powder, and a preservative. The compound functional bacteria include *Bacillus subtilis*, *Trichoderma helicola*, and *Bacillus bellis*. This invention uses a compound of three strains—*Bacillus subtilis*, *Trichoderma helicola*, and *Bacillus bellis*—in a specific ratio to synergistically accelerate the decomposition of straw, effectively shortening the fermentation cycle and improving the decomposition effect. This agent can efficiently degrade agricultural ecological solid waste, converting it into high-quality organic fertilizer, thus turning waste into treasure. It solves the problem of agricultural solid waste pollution and saves fertilizer resources, demonstrating significant ecological, economic, and social benefits.

The present application relates to the field of hydraulic engineering, particularly to a distributed reservoir group joint scheduling signal transmission and intelligent decision system, comprising a hydrological monitoring layer, a data transmission layer and a scheduling decision layer. The hydrological monitoring layer is composed of multiple hydrological monitoring terminals distributed around the reservoir group, using an ARM Cortex-M4 processor and a ZigBee communication protocol; the data transmission layer uses edge computing nodes and self-organizing networks to realize data preprocessing, encryption and reliable transmission; the scheduling decision layer includes a probability statistics prediction engine and a risk perception decision unit, which realizes the paradigm shift from deterministic prediction to probabilistic prediction through multi-dimensional conditional probability distribution model, uncertainty quantification, multi-time scale prediction integration, probability constraint optimization and stochastic dynamic programming, etc. The system introduces an adaptive learning mechanism to continuously optimize the prediction and decision model, which can reduce the short-term prediction error.