173 results about "Wet season" patented technology

The invention relates to a heat pump clothes-drying dehumidifying integrated machine, which is highly efficient, energy-saving and environment-friendly. The machine comprises a wardrobe, a heat pump system, a fan and a control system, wherein the control system is connected with the heat pump system and the fan respectively; the machine also comprises a clothes-drying air channel and a dehumidifying air channel; one end of the clothes-drying air channel is connected with the upper end part of the wardrobe, while the other end is connected with the lower end part of the wardrobe; the dehumidifying air channel is arranged on the lower end part of the wardrobe, and intersects with the clothes-drying air channel; and the heat pump system is arranged at the intersection of the clothes-drying air channel and the dehumidifying air channel. The machine realizes the function of multi-functions by one machine, and can dry clothes as well as dehumidify a room in wet seasons; moreover, the machine can also be used as a wardrobe while in not use; and the wet air generated when drying clothes is not directly exhausted, but circulates in the system, thereby improving the working efficiency and saving energy.

The present invention discloses a method to plant Moringa oleifera used to dry-land fruit trees at the dry and hot valley of Jinsha River, pertaining to the field of forestry planting technologies. The method includes five steps, i.e. nutrition-bag seedling raising, selection of planting land, planting, caring and protection, and seed collection. A 60cm wide streaky level-ground is prepared 1-2 months prior to planting, the row spacing is 250cm, the plant spacing is 250-300cm, 60 multiply 60 multiply 70cm pits for Moringa oleifera planting are dug, 3-5kg farmyard manure or 1kg fertilizer mixture containing 16 percent of calcium superphosphate is filled in each pit as basal fertilizer; the seedlings are raised from April to May, and planted during the rainy season from June to July; the Moringa oleifera is trimmed and sheared carefully; irrigation is conducted 2-3 times during dry seasons, and fertilized once during the irrigation in January. The method is comprehensive, simple and easy to promote, and is capable to achieve 40-57kg Moringa oleifera seeds per mu 3-4 years after planting, the yield is increased by 24-78 percent and 27-81 percent compared with 1 and 2 respectively; thereby, the yield per unit area and the income are increased.

The invention relates to a method for shortening the planting cycle of cloud angelica, belonging to the technical field of plant culture. The method comprises the following steps: preparing nutritivesoil aiming at the seedling nutritional need of the cloud angelica according to the growth rhythm and the growth need of the cloud angelica; adopting a greenhouse nursery technology; seedling in artificial greenhouse nutrition bags in the middle third of January; transplanting in April when a rain season comes; and harvesting in November. The invention has simple operation, low cost, high benefits, little danger, soil and labor saving, environmental protection, easy popularization and high economic benefits. Compared with a traditional planting method, the invention shortens the planting cycleby 200 days, improves the yield by 8.4 percent, lowers the incidence of a root rot disease by 20-25 percent and reduces an early bolting rate by 15-45 percent under the conditions that the quality and the drug effect are not greatly changed, thereby not only laying a favorable basis for improving the artificial scaled planting benefits of the cloud angelica and enhancing the product competitiveness, but also having favorable economic benefits, social benefits and biological benefits.

The invention discloses a sand fixing method for a direct-seeding plant living sand barrier especially for sand comprehensive treatment. In the method, a target species hedysarum fruticosum and associated sand barrier plant wheat are mixed in proportion, and performing biological sand barrier mechanical direct-seeding operation according to designed grid in June rainy season, wherein furrowing soil preparation, planting and earthing are completed in one time. The method directly seeds therophyte which can form a dense green sand barrier in the same year by sufficiently playing the fast growing advantage of the therophyte to protect the target plant (hedysarum fruticosum) seedling from winter in growth period and wind erosion next year, so that the target plant can grow normally in the next year, a grid-shaped biological sand barrier can be formed naturally to permanently play the sand stabilizing effect of the plant living sand barrier.

The invention relates to a moisture-proof box of cultural objects. The moisture-proof box is provided with a magnetic movable sealing device, the magnetic movable sealing device is provided with a sealing plate and a driving sliding seat, the sealing plate is provided with a driven sliding seat, the driven sliding seat is provided with a driven magnet, the driving sliding seat is provided with a driving magnet, and the polarities of the driven magnet and the driving magnet are opposite. When a disabled drying agent is exchanged in a wet season, the moving of the driven magnet is driven by the moving of the driving magnet, the moving of the sealing plate is driven by the moving of the driven magnet, the outside air is insulated from the air in the moisture-proof box of the cultural objects by the sealing plate, the drying agent is changed by a sealed sliding door of a drying room, the outer moist air is prevented from entering the box, and the secondary damping of the cultural objects is prevented.

The invention relates to the technical field of edible mushroom cultivation, in particular to a method for using pruned mango branches and leaves as raw materials to cultivate oyster mushrooms under mango trees, which specifically includes: building a cultivation bed under each mango tree in a mango forest, using mango branches and leaves as the raw materials to make oyster mushroom logs for timely cultivation in early February and early October each year at proper temperature, not in rainy seasons, planting the oyster mushroom logs on the beds, and after production management, starting mushroom harvesting in late March and late November. By the method, land output rate can be increased, resource utilization rate can be increased and agricultural labor productivity can be improved. Soil conditions can be improved. Fruit tree growth and ecological environment protection are benefited. By the cultivation mode, farmers can implement the three-dimensional agricultural production mode to achieve high yield of both mango fruits and oyster mushrooms while investment is not increased and yield of other crops is not reduced.

The invention relates to a method for planting plants by improving a shallow groove and restoring salinate fields in situ; the method comprises the following steps: for planting different plants, shallow-groove strip tillage is carried out on the salinate; a layer of cornstalk, a layer of cow dropping and a layer of cornstalk are laid at the bottom of the groove, then a saline-alkali reducing agent is applied, and then a layer of artificially improved soil which is mixed by luvisol dug from the tillage and artificial biological substrate matured by the cornstalk and the cow dropping in advance is applied; finally, the seeds of the plants is spread into the artificially improved soil, watered and surefooted and field management is carried out; and a layer of cornstalk is laid between the adjacent shallow grooves, the luvisol is used for building a ladder-shaped drainage ditch which is communicated with a water-collecting tank, thus draining excessive water in rainy season.

A method for cultivating muskmelon in the open in southern China is characterized by including main technical steps: selecting varieties, selecting a planting season, exercising buds at low temperature, exercising seedlings at high temperature, preparing soil to make high ridges, performing drip irrigation under mulch, confirming planting density, sealing planting holes, using 'hash-sign' shaped frames for stereoscopic culture, pruning, performing artificial supplementary pollination, selecting fruits for bagging, diagnosing nutrition, controlling water and fertilizer, and managing a field. The method can be used for planting muskmelon at high temperature in the open in rainy seasons, so that the current situation of greenhouse cultivation of the muskmelon in south is changed, open culture in both spring and summer is available in cities and provinces south of Yangtze River, greenhouse investment cost and greenhouse management labor can be saved, and yield and quality are guaranteed.

The invention discloses an aquatic and dry amphibious planting method for rice, which comprises the following steps of: 1) dry farming: conducting dry farming or dry field conservative farming under the condition of a dry field; 2) ridging: using a ridging machine to complete ridging at one step or using a furrowing machine to open furrows to form a required ridge mode; 3) rice seedling transplanting: filling water into the furrows and transplanting rice seedlings when the water and the surface of the ridges are on the same level; and 4) water management: filling water to the level of the surface of the ridges at a rice seedling transplanting stage; implementing half-furrow water infiltration irrigation at a seedling emergence stage, a green turning stage, a tillering stage, a heading stage, a grain filling stage and all future growth stages; and shifting to a dry farming state when droughts occur, filling running water to replenish water supply at a proper time and filling deep water in rainy seasons to prevent flooding, wherein the stored water is used for preventing droughts. The aquatic and dry amphibious planting method has the advantages that the water can be saved, the pollution can be controlled, the crop yield can be improved, the farming cost can be saved, the agricultural labor productivity can be promoted, and the economic benefit, the ecological benefit and the social benefit can be improved at the same time.

The invention discloses a vegetation bag ecological slope protection construction method and a vegetation bag rainwater treatment system. The vegetation bag ecological slope protection construction method comprises the following steps: (a) performing construction preparation; (b) measuring and lining; (c) excavating a foundation pit; (d) pouring concrete to obtain a slope foundation; (e) performing primary rainwater treatment system construction; (f) performing whole slope construction; (g) manufacturing beam grillages; (h) performing secondary rainwater treatment system construction; (i) stacking vegetation bags; (j) planting plants. According to a vegetation bag ecological slope protection system, plant growth substrates are fixed to the interiors of vegetation bags, so that a side slope is more stable and has erosion resistance by utilizing the anchoring effect of the roots of plants; the slope protection foundation which is erosion-resistant, firm and breathable, and suitable for the growth of the plants is formed by combining the characteristics of the beam grillages and the vegetation bags. Meanwhile, the rainwater treatment system is added, so that rainwater is stored in a rainy season and can be used for irrigating the plants in a dry season; on one hand, the slope protection pressure is relieved, and the water and soil loss is further prevented; on the other hand, the rainwater treatment system is favorable to the growth of the plants.

The invention relates to a river basin rare earth mine tail water treatment system and a river basin rare earth mine tail water treatment process. Aiming at the characteristics that rare earth mine tail water is a natural environment water yield and fluctuation of pollutant concentration is relatively large, the system has three operating modes: a normal operating mode, a wet season operating modeand a dry season operating mode. An emergency treatment unit is additionally arranged at the tail end. Ammonia nitrogen and total nitrogen exceed standards when a nitrification-denitrification coupled biological membrane filter system A, a carbon source pond, an adjusting pond B and a nitrification-denitrification coupled biological membrane filter system B go wrong and influent concentration andinfluent flow exceed a designed load or extreme environments such as ultra-low temperature (the water temperature is lower than 5 DEG C) and the like. Due to the addition of chemical reagents such assodium hypochlorite into the emergency reaction pond, a breakpoint chlorination reaction is carried out to remove ammonia nitrogen and total nitrogen, so that effluent reaches the standard stably.

The present invention relates to the technical field of agricultural planting, in particular to a planting method of kiwifruit, comprising: seedling cultivation, grafting, land arrangement, transplanting and scaffolding, cultivation management, pollination of kiwifruit plants, flower thinning and fruit thinning treatment, and pest control step. The effect of the present invention: by placing branches in the pits for planting kiwifruit, the root system of the kiwifruit after planting will not reduce the survival rate due to failure to drain water in time in the rainy season.

The invention discloses a rainy season wet soft roadbed filling construction method. The method comprises the following steps of S1, soil filling water content testing and quicklime doping amount design; S2, test section construction; S3, material preparation; S4, lower bearing layer treatment; S5, measurement and lofting; S6, paving; S7, mixing; S8, leveling and light pressing; S9, rolling; S10,maintenance; and S11, later inspection. According to the rainy season wet soft roadbed filling construction method, during the construction, the quality of the subgrade filling can be ensured, the phenomena of subgrade deformation, subgrade bed frost boiling and mud pouring can be reduced, the roadbed construction efficiency can be accelerated, the construction period and cost can be saved, and the construction quality and efficiency of rainy season roadbeds are guaranteed; and meanwhile, the roadbed filling quality is guaranteed, the roadbed filling construction progress is accelerated, the construction site personnel and machinery idling phenomenon is reduced, and the time for waiting for passing along the vehicles is reduced.

The invention discloses a deep-layer infiltration method for apple orchards at dry highland areas through rainwater collected by tree disks. The deep-layer infiltration method comprises the following steps of selecting orchards; making deep-layer infiltration buckets for the collected by rainwater; trimming tree disks; burying the rainwater collection deep-layer infiltration buckets; and covering black mulching films. The deep-layer infiltration method disclosed by the invention has the beneficial effects that in the deep-layer infiltration method for the apple orchards at the dry highland areas through the rainwater collected by the tree disks, the black mulching films are covered, so that the water content of soil is effectively increased, the spring temperature and the summer temperature of the soil are effectively increased, and the microenvironment of the soil is effectively improved; the infiltration buckets of 40cm are buried, so that the water content of the soil below root layers is increased, the physical properties of the soil are changed, the growing environment of root systems is improved, water consumed for the growth of fruit trees in winter and spring drought seasons are compensated, drought stress on apple trees is small, the yield of a single plant is increased, the quality of 100 leaves of the apple trees is increased, the ratio of new shoots to short shoots is increased, the shape index of the fruit trees is increased, and the appearance of on-year and off-year of the apple trees is effectively prevented; and besides, water in rainy seasons can be effectively accumulated into deep layers, the trans-seasonal utilization of precipitation is realized, and the collected rainwater can also be used as a water soluble fertilizer for irrigation use.

The invention discloses a related culture technology and a method for constructing phalaris arundinacea population in ecological concrete spheres on a river bank protection slope, belonging to the technical field of ecological environmental protection and restoration of a watercourse bank slope. The method provides a series of culture integration technologies such as a picking and storage method of phalaris arundinacea seeds, a selective criterion of a vinegar residue matrix, a sowing date determination principle, sowing density, a sowing method and irrigation and fertilization management after sowing. With the adaptation of the integration technologies, the acidity and the basicity of the ecological concrete are significantly improved, the growing time of the phalaris arundinacea before a next-year wet season is prolonged, the proportion of planting the phalaris arundinacea in gaps in the concrete spheres is increased, the vegetation coverage reaches over 100 percent, and the averagebiomass can reach 1.36kg / m<2> (dry weight above the ground). Moreover, the number of the phalaris arundinacea which is washed away is significantly reduced after the next-year wet season, and the vegetation is stable.

The invention relates to a method for building a drought barren mountain feed shrubbery, which comprises the steps of selecting tree species, ploughing soil, arranging planting points, afforesting, fostering and managing a feed shrubbery, and the like. Local shrub species of seabuckthorn, dasiphora fruticosa, dasiphora davurica, gray cotoneaster, caragana tangutica, spiraea alpine, and the like are selected according to a theory of being suitable for the soil and trees; a growing season is advanced to improve the water content of the soil, i.e. the soil is ploughed in the rainy season, and the afforestation is carried out when the soil is thawed in the spring of the next year; a running water acquisition method is adopted during soil ploughing; the planting density with the strain line spacing of 1*1.5m, which is adopted during afforestation, plays a role of stress resistance effect of population; and finally the fostering seal, rotational grazing and stump removing rejuvenation are adopted after the feed shrubbery is afforested, thereby being beneficial to promoting the growth and development of the shrub and improving the biological output of a feed forest. The invention has the comprehensive effect of improving the survival rate of shrub afforestation by30-40 percent.

The invention discloses a construction method of a water-storage drip irrigation system for plants. The construction method includes the following steps of firstly, digging a planting pit on the earth; secondly, paving an impermeable film at the bottom of the planting pit; thirdly, mounting a water storage cover in the planting pit with the impermeable film paved; fourthly, paving a water seepage layer in a gap between the water storage cover and the planting pit; fifthly, backfilling planting soil and paving a water collection film above the planting soil; and sixthly, paving a mulching layer 8 on the water collection film. Since the water storage cover and the water seepage layer are arranged in the planting pit, rainwater in wet seasons can be stored in the water storage cover and is provided for growth of plants under action of seepage of the water seepage layer, and roots of plants can extend to absorb water conveniently. Further, by arranging the water collection film, rainwater in the wet seasons can be conveniently collected and prevented from seepage and evaporation, and loss of water in the planting pit is reduced. The construction method is simple and convenient to implement and convenient to store and utilize water, and after construction, times of manual irrigation are reduced, labor and material resource cost is saved.

The invention relates to the field of crop cultivation, and specifically provides a northern greenhouse loquat planting method. The method comprises the following steps: (1) variety and seedlings are selected; (2) field planting is carried out in early April or rainy seasons of July to August, wherein land preparation, planting hole digging, nutritive soil preparation, and backfilling should be carried out before field planting; (3) cultivation management and main pest and disease controlling are carried out; and (4) harvesting is carried out. With the method, high-yield cultivation of loquat in northern greenhouse is realized, and a possibility is provided for providing flavorful loquat products in northern markets.

The invention discloses a method for water-fed forestation in arid hillside fields of arid-hot river valleys, pertaining to the technical field of water-saving agriculture. The method comprises the steps of digging large ponds, backfilling prepared fertilizers, cultivating, strengthening and field planting seedlings, timely field planting against the rain in rain season, covering with grass to keep water, top dressing in rain season to promote the seedlings, wherein, the length, the width and the depth of the planting hole of an arbor tree is 120 cm multiplied by 80 cm multiplied by 100 cm while a frutescose tree is 80 cm multiplied by 50 cm multiplied by 60 cm and the planting hole is perpendicular to slope direction; when backfilling the soil, the soil in each pond is mixed with 5 kg to 10 kg of organic fertilizer and 2 kg to 4 kg of mixed fertilizer of calcium, magnesium and phosphate fertilizers; field planting is carried out in May to June with sufficient rain water; after the field planting of nursery stocks, the weeds are cut in time for covering the tree pond; approximately 20 days after the field planting of the nursery stocks, quick effective nitrogen fertilizer is applied in proper time. Adoption of the method of the invention can enhance the survival ratio of forestation in arid hillside fields of arid-hot valleys under the circumstances of no irrigation water to more than 95 percent and the preservation rate to more than 90 percent. The technology of the invention is scientific, reasonable and feasible and has high significance in revegetation and ecological reconstruction of arid-hot river valleys.

The invention discloses a dwarfing close-planting high-yield cultivation method of milk jujubes, and belongs to the technical field of plant cultivation. The method includes selecting and settling an afforesting land; selecting and planting seedlings; managing soil; managing fertilizer and water; irrigating, namely discharging water in the rainy season and guaranteeing adequate moisture in the periods of flowering and fruit ripening; managing the fruit bearing period; shaping and pruning jujube trees; comprehensively controlling plant diseases and insect pests; and harvesting, namely starting to harvest after the August fifteenth in each year, and picking manually. According to the technical field, the method has the advantages that the survival rate of the jujube trees is high, management is uniform, canopy is tall, the jujube trees are economical and have long lives, the milk jujubes are high and stable in yield, fruits are in a long oval shape, surface is smooth, color is creamy white, taste is delicate and sweet, the milk jujubes are excellent varieties used for processing candied jujubes, market competitiveness can be improved greatly, and economic benefits are provided.

The invention discloses an under-forest radix tetrastigme planting method imitating the wild condition, and belongs to the field of plant culture. The method comprises the following steps that an under-forest land of which the canopy density is 45-65%, light intensity is 2000-4000 lux and the soil is sandy soil serves as a cultivation base; weeds and impurities are removed, the soil is scarified, and farmyard manure is applied; seedlings are raised by cutting from September to October; transplanting engraftment is carried out in rainy seasons from February to March or from April to May in the next year; then weeds are removed, and farmyard manure is applied during the growing period of every year. The proper under-forest environment is selected to imitate the wild condition to culture radix tetrastigme, cultivated land is saved, expenses needed by building a shade shed are also omitted, the selected under-forest environment is very suitable for natural growth of radix tetrastigme, plant diseases and insect pests are not generated, planting of radix tetrastigme is carried out almost in the fully natural environment, and therefore radix tetrastigme has better quality and efficacy. The method is easy and convenient to implement and low in investment, the survival rate of plants reaches more than 86%, the quality of Chinese herbal medicine is ensured, and the cultivated land is saved.

The invention provides a water retention agent and the application thereof in jatropha curcas forestation in arid-hot river valleys, pertaining to the technical field of plant growing. The invention comprises cultivation plots selecting, ponds digging, applying of the water retention agent and field plating. The Chinese commodity name of the water retention agent of the invention is Tudihanbaobei water retention agent, the cultivation plot is barren mountains and barren slope lands without water conservancy and irrigation; field planting is conducted in May to October, the rain season; the size of the dug planting pond is 80 cm multiplied by 80 cm multiplied by 80 cm <3>; base fertilizer comprising 2 kg to 4 kg of well-rotted farmyard manure, 0.5 kg of calcium superphosphate and 0.5 kg of potassium sulfate is fertilized in each planting pond and a nursery stock is placed in the planting pond, 20 g to 30 g of water retention agent granules are put at the root of the nursery stock and then the soil is backfilled in the planting pond. The application of the water retention agent of the invention solves the problem of the low survival ratio of forestation in arid-hot river valley areas by adopting the traditional method of jatropha curcas artificial forestation; utilization of the invention can ensure that the survival ratio of jatropha curcas forestation in arid-hot river valleys reaches 95 percent to 98 percent, raising by 22.22 percent compared with the contrastive survival ratios on average, thus improving the yield and the benefit of forest lands.

The invention provides a high-yield planting method for a plum tree which comprises the following steps of 1) selecting a land; 2) planting; 3) performing waterproof treatment; 4) performing fertilizer and water management; 5) performing flower and fruit management; and 6) performing disease prevention and treatment. A water discharge pipe lower than the planting holes is buried in a drainage groove, and is capable of effectively discharging water accumulated in a rain reason, preventing a phenomenon that foot rot occurs due to non-timely water discharge; during a selected land ploughing process, green manure is added and is prepared from Chinese herbal medicinal ingredients, and the insecticidal effect, bacteriostasis effect and nutritional effect of the Chinese herbal medicinal ingredients can be fully utilized, so that the nutrition condition and physical and chemical properties of the soil are improved, a favorable foundation is laid for normal growth and development of plum tree seedlings; by use of the soil, the survival rate of the plum tree seedlings is 90% or above; in addition, during a planting stage, a soil layer and fertilizer combination mode is adopted, so that on one hand, the plum tree seedlings are capable of fully absorbing nutrition and fertilizer is saved, on the other hand, the fertilizer is compounded with a large amount of Chinese herbs, so that the plum tree seedlings are prevented from root dehydration, and the survival rate of the plum tree seedlings is improved.

An inland water-bearing system saline water and fresh water interaction displacement simulation device comprises a water supply device, a waterhead control device and a seepage device, wherein the water supply device comprises a first water supply bottle and a second water supply bottle, the seepage device comprises a first seepage column simulating a diving system and a second seepage column simulating confined water, and the bottom of the first seepage column and the bottom of the second seepage column are communicated through a pipeline; the first seepage column and the second seepage column are filled with media respectively; a water outlet is formed in the upper end of the second seepage column, and a piezometer tube is arranged on the water outlet; an overflow port is formed in the upper portion of the first seepage column and communicated with an overflow bottle through a pipeline. According to the inland water-bearing system saline water and fresh water interaction displacement simulation device and method, water-rock interaction and water chemical action during periodical saline water and fresh water alternation in the wet season and dry season can be simulated, and scientific basis is provided for predicting the trend of salinization of inland shallow groundwater and controlling shallow salt water.

The invention relates to the field of hydrology simulation and forecasting, in particular to a hydrologic model parameter estimation method based on FCM-NSGA-II. The method comprises the steps of 1, adopting a fuzzy C-means clustering method to classify an unknown flood process, selecting rainfall data and potential evaporation capacity data as clustering indexes, normalizing the clustering indexes, and then dividing drainage basin data into a wet season and a dry season according to an FCM model; 2, setting target functions aiming at the wet season and the dry season separately; 3, adopting an NSGA-II multiobjective parameter optimization algorithm to estimate an optimal parameter set of a semi-distributed hydrologic model TOPMODEL to obtain a forecasting result of classification of a hydrologic process; 4, setting a single target function for the whole hydrologic time sequence, and adopting an SCE-UA single target parameter optimization algorithm to calculate the optimal parameter set of the TOPMODEL hydrologic model to obtain a forecasting result of unclassification of the hydrologic process; 5, comparing the forecasting result obtained in the third step with the forecasting result obtained in the fourth step, and conducting mutual verification.

The invention provides a rainy season land slide deformation monitoring method and a rainy season land slide deformation monitoring system. A data integration center is used to acquire a displacement value and a speed value of a monitoring point of a current sampling time point according to a displacement sensor and a speed sensor, and is used to acquire displacement values and speed values of the previous one or two time point / s, and two given error covariance matrixes, and is used to acquire a measurement noise covariance matrix estimation value and a process noise covariance matrix estimation value of the current sampling time point according to the ordinal number of the current sampling time point and the above mentioned parameters. Kalman filtering of the displacement value and the speed value of the current time point can be carried out by adopting the acquired matrix estimation values, and then the optimal displacement estimation value and the optimal speed estimation value of the current sampling time point can be acquired. The displacement value and the speed value can be the displacement weighted average and the speed weighted average. The two covariance matrixes can be estimated according to the actually acquired displacement value and the actually acquired speed value, and are not given, and therefore the matrix estimation values are real, and the filtering result is accurate. The invention also relates to the rainy season land slide deformation monitoring system.

The invention discloses a method for treating (large) river black odoriferous water discharged from a rainwater pumping station in a rainy season and relates to a technology for controlling substances making a water body black and odorous, in particular to control of bottom sludge settling in a rainwater pipeline or a rainwater well and causing the black and odorous situation. The method is suitable for treatment of black odoriferous water of rainwater pumping stations, converged sewage pumping stations and rivers before the water is discharged to (large) rivers. The method comprises the treating steps of rainwater pipeline bottom sludge scouring, rainwater pipeline bottom sludge disturbance improvement, mud and sand residue separation and bacteriostasis and black odoriferous reduction based on slow release of reagents. The treating method is simple in process, the occupied area is small, the investment is saved, the environmental benefits are high, operating management is convenient, the bottom sludge settling problem of the upstream pipe section of the rainwater pumping station, the blockage and winding problems of a sewage intercepting pump in the rainwater pumping station and the abrasion, blockage and settlement problems of a downstream pipe net can be also solved except that the black odoriferous problem of the river water discharged in the rainy season can be solved, and the inflow water carbon nitrogen ratio of a sewage plant relevant to sewage permeation of the rainwater pumping station can be also improved.

The invention provides a small hydroelectric generating set considered day-ahead predication for provincial supply load in a geographic survey range. According to the invention, statistics is performed on capacity of runoff sets of different counties / districts according to county / district administration partition of a prefecture-level city and the whole year is divided into a wet season and a dryseason according to history rainfall data. Weighting treatment is performed on the history rainfall data according to the county / district sets. According to local geographical conditions and influenceon power generation of small hydroelectric generating sets by history rainfall, rainfall impact factors are obtained. Final rainfall data is obtained through rainfall data subjected to weighting treatment and the rainfall impact factors of the different counties / districts. Summation of the above rainfall data of the different counties is made according to different time periods, so that rainfalldata of different time periods of the city is obtained. The rainfall data is taken as input data in a BP neural network method and predicated small hydroelectric generating set power generation volumeis obtained. History load data is taken as a training sample and district load data is obtained. By adopting the invention, predication precision of capacity of the runoff small hydroelectric generating sets is improved and a scheduling model of prefecture-level scheduling is optimized.

A water control system is described for providing drainage and / or irrigation of an athletic field or other surface without using thick beds of sand and gravel, and without removing existing turf or buying new turf. A lower layer of the system is a series of typically parallel, generally horizontal trenches, widely spaced and containing coarse gravel and optional perforated pipes on a gentle slope. The downstream ends of the trenches join with a collector which drains water away from the site. An upper layer of the system comprises another set of usually narrower, shallower, and more closely spaced parallel and upwardly open slots filled with finer porous media such as sand, and intersecting the trenches at an angle such as ninety (90) degrees. Porous tubing may be used at a slight slope along the bottom of these slots to conduct water to openings in the tubing at the intersections. A thin layer of porous media, often mixed with other materials such as compost or peat, is spread on top and raked such that grass can grow through it. This layer conducts water horizontally to the nearest slot in order to drain surface water rapidly even if the original turf has very low permeability. During dry seasons a water level can be maintained in the collector and hence in the media of the slots for irrigation, thus eliminating the need for a sprinkler system. During rainy seasons, the collector may be left open for rapid drainage.

The invention belongs to the technical field of power system power distribution network dispatching operation and grid management, and particularly relates to a wind-water-fire combined dispatching method based on wind power priority grid connection. The method comprises the following steps: firstly, obtaining wind power prediction power and load prediction power in one day by a dispatching center; secondly, establishing a target function and a constraint function by a wet season and a dry season; thirdly, adopting a particle swarm algorithm to solve a target function; and finally, according to an optimal solution, distributing output power between a hydraulic power plant and a heat-engine plant. The method fully considers the characteristics of big volatility and low cost of wind power grid connection, carries out analysis combined dispatching in two periods of the wet season and the dry season, adopts the particle swarm algorithm to carry out global optimization on a dispatching algorithm, obtains the optimal solution to carry out power distribution dispatching, and realizes the full utilization of renewable energy sources and economic benefit maximization.