100 results about "Mire" patented technology

The invention discloses an ecological restoration method for a lakeside wetland. In the method, hygrophilous woody plants are planted in a lakeside zone to construct wetland plant communities. The hygrophilous woody plants comprise hygrophilous arbor and hygrophilous shrub, wherein the hygrophilous arbor comprises willows, metasequoia, ascendens mucronatum, taxodium ascendens brongn and bamboo; the hygrophilous shrub comprises iteaceae and S.integra thrnb; and the plants are planted in the way of shoot cottage or soil ball transplant. The hygrophilous woody plants are perennial plants, have a low growth rate, low biomass, low growth amount and low plant disposal pressure and do not need felling and refloating every year, so that the defects of frequently harvesting and refloating herbal emergent aquatic plant communities every year are overcome, the maintenance and management cost of lake wetland plant communities are reduced, the lakeside depositing rate is lowered, and the secondary pollution hidden danger to lake water bodies is relieved. Compared with the prior art, the method has the characteristics of convenient operation, maintenance and management, low maintenance cost, high ecological benefit, easy popularization and application and the like and can be used for ecological restoration engineering of lake and lakeside bottomlands, swamp marshes and shallow water zones.

The invention provides a 'propagation method for the hard wood cutting of 'golden common vetch''. The propagation method is characterized by comprising the following steps of: selecting the annual 'golden common vetch' branches free of plant diseases and insect pests and with the coarseness within the range of 0.2-0.6cm in March, shearing into cutting slips with the lengths of 5-10cm, and soaking in water for 12-24 hours; dipping the roots of the cutting slips at 1.5-3.0cm for 10-20s by 75% ethyl alcohol, washing by clean water for 2-3s, inserting into 800-1000mg.L<-1> IBA (iso butyl alcohol) solution for 30-50s, and inserting into a matrix mixed by mire soil and perlite according to the proportion of 1:1, wherein the cottage depth is 1 / 2 of the length of the cutting slips, and one golden common vetch is inserted into every one hole disc; spraying water after cottage, so that the branches are tightly contacted with the matrix; and entering a seedling exercising period when the rooting percentage of the cutting slips reaches up to 60-70% of a sword, and planting when the seedling exercising time is 10-15d. The survival percentage of the cutting slips of 'golden common vetch' propagated by the method disclosed by the invention can reach to be more than 80% of the sword under the condition of a fog system, and the method is ordered in nursery stock, enough in delayed effect, and extremely good in commodity.

The invention discloses an ecological treatment method for acid mine water of coal mine. The method comprises a pool or a pool group, a pond or a pond group and a wetland which are connected in series; a fine particle limestone filter material is arranged at the pool or the pool group, and the diameter of fine particles d is at most 3.0mm; the depth of the pool or the pool group is 3-10m, and the area of the pool depends on processed water quantity and water quality; processing 1000m3 / d of water needs the area of 10-30m2, and water flow passes through the filter material from bottom to top; thiobacillus ferrous oxide is put in the pond or the pond group, and the depth of the pond or the pond group is more than 1m; the area of the pond depends on processed water quantity, and processing 1000m3 / d of water needs the area of 50-100m2; the water temperature is 28-30 DEG C, the pH value is 2.0-2.3, and the quantity of strain inoculation is 10 percent; the water flow smoothly flows through the pond, and the flow speed is smaller than 0.2m / s2; water-resisting plants such as reeds, Typhaangustifolia or willows and the like are planted in the wetland; the area of the wetland depends on processed water quantity, and processing 1000m3 / d of water needs the area of 1000-2000m2; and the water flow slowly flows through the wetland, and the flow speed is smaller than 0.05m / s2. The method comprehensively applies a neutralization method, a bacterial method and a wetland method and utilizes the respective characteristics to process acid waste water with any concentration and any properties.

The present invention discloses a wet land species diversity habitat system construction method which comprises the steps of: deep water area construction; shallow water area construction, wherein the area with the water depth being less than 50 cm is 30%-50% of the total water area, and abundant flow state environment is built; sandy beach construction; swamp area construction including the steps of planting pieces of emerged plants having developed subterraneous stems in a low-lying swamp area which is waterlogged all year round, or appropriately accompanying plants such as softstem bulrush, cattail, water horsetail and marsh marigold and the like, or alternately planting sedge; and aquatic vegetation zone construction including the steps of coastwise arranging emerged plant zones and floating-leaved plant zones in a land and water interface hydro-fluctuation belt zone so as to form an isolating barrier, the depth into the water being at least 10 meters. According to the method, the biology habitat function of a wet land can be newly built or recovered, a good growth and propagation place is provided for wet land biology, and an appropriate ecological environment is provided for birds, amphibians, fishes and periphyton.

The present invention relates to one kind of stereo rice field cultivation method, which includes constructing enclosure wall around the cultivation field, top stainless steel net, reservoir, irrigation and drainage ditches; killing mouse, mosquito and fly; weeding and sterilizing in early stage; zero tillage; building marsh gas tank; etc. The present invention an increase grain yield, develop ecological agriculture and improve ecological environment.

The invention relates to an appliance for measuring or controlling an optical element (3) comprising illumination means (1) and an associated artificial vision system (2), in which the optical element (3) can be inserted between the illumination means (1) and the artificial vision system (2), said illumination means (1) comprising programmable optoelectronic means for producing a luminous background with spatially and temporally variable brightness. The inventive appliance is characterised in that the programmable optoelectronic means are embodied in such a way as to consecutively generate a plurality of mires, each comprising a pattern which is repeated in a contrasted manner on a uniform background with a high spatial frequency of between 0.01 and 100 patterns / mm, or such that two adjacent patterns are separated by an angle between 0.1 and 30 degrees, said angle being measured from the point of the object on which the pattern is observed. Said generated mires are consecutively spatially staggered in such a way that a plurality of images corresponding to the mires is captured by the artificial vision system after reflection or transmission by the optical element (3), and recombined in the form of a single composed image.

The invention discloses a kit test method of beta-lactam antibiotics residue in milk, comprising the following steps: performing once activation to bacillus stearothermophilus, then culturing the activated bacillus stearothermophilus in a production culture medium at 50-65 DEG C for 24-36h while stirring in a rotation speed of 100-150rpm, centrifugalizing to collect bacteria mire, adding agarose bromcresol purple solution, mixing evenly to ensure the number of spore in each kit reach 1.00*10<7>-2.50*10<8>cfu, subpackaging the spore in porous reaction vessels at 60-70 DEG C, covering aluminum-plastic film, placing upside down, sealing, placing the vessels in aluminum-plastic packages and storing in dark place while keeping from wet. The kit has the advantage of easy operation, high sensibility, good repeatability, low cost and high throughput, can be stored at 4-8 DEG C for 12-18 months and can be used to test beta-lactam antibiotics residue in milk.

The invention discloses an ecological restoration agent for fallow ginseng soil. The ecological restoration agent is characterized by being divided into a solid form and a liquid form, wherein the ecological soil restoration agent in the liquid form consists of the following microorganism components in percentage by weight: 20-40 percent of bacillus subtilis, 10-20 percent of saccharomycete, 5-10 percent of Nocard's bacillus, 10-30 percent of lactic acid bacteria, 10-20 percent of white rot fungi and 5-10 percent of rhodopseudomonas palustris. The ecological soil restoration agent in the solid form is an organic fertilizer processed through fermentation by using the complex microbial inoculants. According to the ecological restoration agent disclosed by the invention, beneficial bacterium in the soil is increased in a manner of restoring an ecological system of the soil by using a microbial technology; by adopting a technological method in which a plurality of trains are combined, the ecological system of the soil is restored, growth of roots of plants is promoted as well, the soil is loosened, the seedlings are strengthened, and the ecological restoration agent also has the effects of degrading pesticides and alleviating pollution of chemical fertilizer residues.

The present invention provides a method for culturing photosynthetic bacteria, which belongs to the biotechnology field. The method adopts a large cement pool as a culturing container and uses a transparent plastic film to cover and seal the surface of liquid photosynthetic bacteria culture in the cement pool, and the photosynthetic bacteria are cultured under the irradiation of sunlight with average temperature larger than 20 DEG C. After culturing is started, the photosynthetic bacteria culture is sampled everyday in order to measure the pH of the photosynthetic bacteria culture, and by adding acetic acid solution with concentration between 5 percent and 30 percent into the photosynthetic bacteria culture and uniformly mixing, the pH of the photosynthetic bacteria culture is decreased to 7.0. The method can culture the photosynthetic bacteria on a large scale and promote the photosynthetic bacteria to grow rapidly and constantly, the dry-weight concentration of the finally obtained Rhodopseudomonas palustris cells is 1.8g / L, and the corresponding cell concentration reaches 81.8 multiplied by 10<8> / ml. The method realizes the purpose of rapidly and efficiently culturing high-cell-concentration photosynthetic bacteria on a large scale.

The invention relates to a multielement organic humic acid watering liquid fertilizer and a preparation method thereof. The weight percentage of main materials are as follows: 40 to 45 percent of waste mash, 15 to 20 percent of coal powder, 17 to 25 percent sugar mire, 20 to 25 percent of straws or bagasse, 0.5 to 1 per thousand of molasses, 1 to 1.5 per thousand of ferrous sulfate and 1.5 to 3 per thousand of fermentation strain. The main materials of the invention come from the waste of sugar factories, agricultural production and coal mining. The method is low in production cost and relatively simple in production process and technical equipment, and products are safe and reliable with no residue and no heavy metal beyond standard, so the multielement organic humic acid watering liquid fertilizer is suitable for developing organic agriculture, ecological agriculture, green agriculture and harmless agriculture and has significant ecological, economic and social benefits. Furthermore, the multielement organic humic acid watering liquid fertilizer can balance agricultural soil flora, flora, nutrition, acid base and ecology and has considerably good manurial effect and good control efficiency to plant diseases and insect pests such as downy mildew, powdery mildew, black spot, leaf blight, mosaic diseases, black shank, aphids, cutworms, soft rot and virus diseases and the like. in the practical application.

The present invention relates to a method for utilizing carbonate type swampiness heavy saline lake to develop fishery. Its technical measures include: desludging repairing dykes; expanding water body; building combined high-quality fishpond to carryout breeding in lake, fishponds-connected collection breeding and increase brand-name and high-quality aquatic varieties. Said invention can obviously improve ecological environment of water body, can reduce the pH value of lake water body to 8.2-8.7, can reduce total alkalinity to 5-6 millimole / l, the salt content of soil is reduced to 3-5g / kg, and the salt content of water body can be retained to 2-3 g / l.

The invention discloses a mire machine self-rescuing device and belongs to an agricultural machinery device. The mire machine self-rescuing device mainly solves the technical problems that an existing agricultural machinery self-rescuing device is complicated in structure, not convenient to use, poor in adaptability, high in manufacturing cost and the like. The mire machine self-rescuing device is characterized in that an engine (2) is arranged on a body machine (1) which is provided with a linkage axle (3) which is provided with linkage chain wheels (4), and a linkage chain (7) is arranged between the linkage chain wheels (4). The two sides of the linkage axle (3) are provided with self-rescuing lifting rocker arms (5), and the other ends of the self-rescuing lifting rocker arms (5) are connected with a self-rescuing adjustable lifting connection rod (6) which is connected with a sliding board (8). The mire machine self-rescuing device is mainly used for self-rescuing after the machine mires down in mud.

The invention relates to a cotton seedling substrate prepared from vinasse biogas residue and a preparation method thereof. The cotton seedling substrate comprises 7-9 cubes of vinasse biogas residue and 1-3 cubes of vermiculite, wherein the vinasse biogas residue is fresh mire which is generated after the vinasse is fermented in a biomass tank and biogas is generated, and the vermiculite is of clay mineral. The preparation method comprises the following steps of: sun-drying and dehydrating the vinasse biogas residue, carrying out first fermentation and secondary heterofermentation, air-drying leavening, mixing the leavening with the vermiculite, and then sieving to obtain the cotton seedling substrate. According to the invention, the problem that the vinasse biogas residue pollutes environments is solved, the vinasse biogas residue is used as the raw material of the seedling substrate, and the industrial chain of the circular economy for food processing is prolonged; the cost of the cotton seedling substrate per cubic meter is RMB 135 yuan; the cost of turf substrate raw material per cubic meter is RMB272 yuan; and therefore, the cost is reduced by more than 50%. The cotton seedling substrate has the following physicochemical indexes of: the grain sizes of 1-5mm of larger than or equal to 40%, organic matters with volume-weight of above 4.47 of 0.15-0.40g / m<3>, the total void of 60-70%, the pH value of 5.5-8.0, the conductivity of less than or equal to 80% us / cm, the total nutrient of 4.0%, and the moisture of less than or equal to 30% and reaches the optimal range of growth of seedling root systems.

The invention relates to a method for promoting sprouting of Carex limosa seeds, which relates to the technical field of plant seed sprouting, and aims at solving the problem that the sprouting by adopting the present Carex limosa seed sprouting method is low, and comprises the following steps that: A, collecting and selecting seeds; B, processing the seeds; C, germinating. The method has advantages that: A, automatic collection can guarantee the maturity of t he Carex limosa seeds; B, a water selecting method is adopted to select the seeds, so the quality and the activity of the mature seeds of the Carex limosa can be guaranteed; C, due to the adoption of the sterilization, the mature Carex limosa seeds can be prevented from being moldy; and D, by adopting the technology combining the low-temperature seed soaking and variable-temperature culture, the sprouting speed and the germinating rate of the mature Carex limosa seeds can be improved, and the germinating rate can be improved to 50 percent to 61 percent. The method is applied to the field for promoting the sprouting of Carex limosa seeds in marshes.

The invention discloses a method for recultivating collapsed soil in coal mining, which belongs to the technical field of the recultivation of collapsed soil. The method for recultivating the collapsed soil in coal mining comprises the following steps of: carrying out water pumping on accumulated water in the collapsed soil, adopting surface water pumping for a swampland and carrying out a next step directly if no accumulated water exists; digging trapeziform pits in the collapsed soil after water pumping and digging to an underground part at 4 to 5 meters deeply; constructing a methane tank in each pit in which earth is taken out, carrying out back filling by the original soil and using the residual earth for covering a collapsed area; covering a surface layer by using the soil after air outlets and feed ports, which are required by the methane tanks, are remained at the upper faces of the methane tanks, wherein the covering soil reaches 0.8 to 1.2 meter(s); and developing a planting industry and a breeding industry to the soil after treatment. The method for recultivating the collapsed soil in coal mining has the beneficial effects that methane tanks are constructed by utilizing the earth of the collapsed soil of an ore area, and the upper faces of the methane tanks are covered with the soil for planting trees, flowers and the like to develop the planting industry and the breeding industry after the methane tanks are constructed. In this way, a bottomland is lifted, the recultivation of collapsed soil is also realized, the full utilization of soil is achieved, and the utilization rate of the soil is greatly enhanced.

The invention relates to a method for eliminating microcystin in foods, and belongs to the technical field of food biotechnology. Probiotics are adopted as a biocatalyst; fermentation broth is prepared by liquid submerged fermentation or the fermentation broth is refined to prepare bacteria mire; and the prepared probiotic fermentation broth or bacteria mire is put into aquatic products or used in a production process of fermented foods, and products with rich nutrient, and health and safety are obtained.

The invention relates to a method for producing a high-activity lactic acid bacteria agent by a two-step drying method, belonging to the technical field of microorganisms of preservation or activity maintenance. The method comprises steps of lactobacillus mire preparation and vacuum freeze drying. The method is characterized in that: before the step of vacuum freeze drying, the prepared lactobacillus mire is put in a vacuum drying box to carry out vacuum drying for 4-20 hours under a vacuum degree below 500Pa and a vacuum drying temperature of 25-45 DEG C. The survival rate of thalli in the method is higher than that of thalli of a method which directly carries out freeze drying, and the load and the operation time of the vacuum freeze drying can be reduced. The invention has small equipment loss and low energy consumption and can effectively save cost and improve the production efficiency.

The invention discloses a method for deep treatment of tail water of a sewage treatment plant by using constructed wetlands. The method comprises the following steps: S1, lifting sewage to be treatedinto a sedimentation tank by means of a lift pump room for pretreating the sewage, wherein particulate matters are precipitated in this step; S2, enabling the sewage to enter the surface flow constructed wetland from the sedimentation tank, wherein the pollutants in the sewage are further degraded; S3, enabling the sewage to enter the composite constructed wetland from the surface flow constructedwetland, wherein the pollutants are further degraded and denitrified to remove nitrogen; S4, enabling the sewage to enter ecological marsh wetland from the composite constructed wetland to further remove the pollutants in the water; S5, enabling the sewage to enter a natural ecological wetland with more ecological landscape characteristics from the ecological marsh wetland for carrying out the final treatment on the residual pollutants so as to obtain the up-to-standard tail water. The method provided by the invention is high in water purification efficiency, rapid in water through speed, andlow in construction cost at the early stage.

The invention provides a method for preparing prodigiosin fermentation liquor. The method takes grease derived from woody plant seeds as a fermentation carbon source; the fermentation liquor containing 15-30g / L of prodigiosin can be prepared by controlling the fermentation conditions. The method has the advantages that (1) the raw material is widely planted, low in price, convenient to obtain and high in sustainability, and the like, so that the phenomena of 'competing with human for oil and land', and the like can be avoided; (2) the woody plants adopted by the method can be planted in the environments such as barren mountains and slopes, desolate beach and swamp and front or back yards, saline-alkali soil which are not beneficial to the grain crop planting and production, so that the method has important significances in the aspects of protecting the ecological environment, improving the land economic benefit, protecting the cultivated land and the like; (3) the woody plant grease with low value is prepared into the medicine product prodigiosin with high additional value by fermentation, so that the method is wide in market prospect and has great development value.

The invention discloses a soilless high-yield cultivation method of sphagnum junghuhnianum. The soilless high-yield cultivation method of sphagnum junghuhnianum comprises the following steps: selecting boggy soil with a pH value of 4-6.5 at the altitude of 500-2000m and making the soil into a semi-arid box; paving a plastic film on the surface of the box and perforating air outlet holes in the surface of the film; sowing humus on the surface of the film and taking the humus as cultivation soil; taking fresh sphagnum junghuhnianum plant branches or fragments as seedlings, sowing the seedlings on the surface of the film with a seedling amount of 200-300g per square, uniformly sowing straw fragments on the box to cover the seedlings, and pressing the straw fragments, the seedlingsand the cultivation soil; covering the sphagnum junghuhnianum by a shading net, and spraying water for 3-6 times per day by virtue of a micro spraying method; compensating seedlings, wherein after weeding and planting for 18 months, the sphagnum junghuhnianum grow to be mature and enter a harvesting period. The soilless high-yield cultivation method of the sphagnum junghuhnianum is capable of domesticating the wild sphagnum junghuhnianum resources, then cultivating seedlings and artificially planting and popularizing to obtain a sphagnum junghuhnianum variety; the sphagnum junghuhnianum variety is high in growth speed and thick in texture and has high plants; the per unit area yield of fresh products is 8000 kilograms; the per unit area yield of dry products is 400-500 kilograms.

The invention relates to a method for large-area land preparation and rice plantation in desert areas. A large-area plantation structure subjected to land preparation comprises a base layer, an anti-seepage layer and an improved matrix layer from bottom to top, wherein the base layer refers to original desert soil, the anti-seepage layer is a tamped boggy soil layer, the bottom of the boggy soil layer is in close adhesion with the base layer, and the improved matrix layer is formed by mixing of fermented pig manure, mushroom residues and the original desert soil. Specifically, the large-area plantation structure is formed by sand pouring for furrowing, paving of the anti-seepage layer, additional arrangement of ridges and sand field improvement. By adoption of the method, the problem of water seepage is well solved, breathability is achieved by adoption of the tamped boggy soil as the anti-seepage layer, and large-area rice plantation in deserts is realized. The rice plantation method high in yield and efficiency and low in water consumption is provided on the basis of the deserts.

The invention relates to a water quality purifying system, a waste water treatment device, and a natural non-point purifying device which are low in energy consumption, can handle the point pollution source represented by polluted water or waste water and the multiple pollutants in river water or lake and marsh water, and can carry out the selective deep treatment to a non-point pollution source in rainfall. The mixed artificial wet land water quality purifying system includes a first aerobic artificial wet land, a non-aerobic artificial wet land, and a second aerobic artificial wet land. The first aerobic artificial wet land guides the purification object water along the vertical direction and at the same time removes the pollutants. The non-aerobic artificial wet land guides the purification object water along the horizontal direction and at the same time further removes the pollutants. The second aerobic artificial wet land guides the handled water from the non-aerobic artificial wet land along the vertical direction, and gives air to inside to improve the dissolved oxygen amount of the handled water.

The invention relates to a zinc-rich Chinese cabbage cultivating method. The zinc-rich Chinese cabbage cultivating method includes soaking seeds before sowing by seed soaking fluid made by aloe juice, distilled vinegar and water. The seed soaking fluid can treat and kill downy mildew and black rot, germination rate of seeds is increased, morbidity of downy mildew and black spot is decreased during cultivation, shell powder, compost peanut shells and boggy soil are used as cultivating soil, nutrient is adequate, and leaf rolls and wrappage due to insufficient nutrient are avoided during cultivation. Without additional soil fertilizer during cultivation, cultivating cost is saved, specially made leaf fertilizer sprayed during the seedling stage, the pod stage and the heading stage can promote growth of Chinese cabbage, the cabbage has compact inside, cabbage leaves have high water content, natural withering of the leaves is prevented, soft rot caused by natural breaches is reduced, disease resistance of the cabbage is improved, yield of cabbage is increased by more than 30% as compared with that of a common cultivation technology, soft rot and tip burn of the cabbage are avoided, incidence of the mature cabbage is reduced to 2% during the cultivation stage, and zinc content of the ripen cabbage in each 100 g is up to 8.32 to 9.01 mg.

The invention discloses a flooded marsh plant ecological water demand calculation method based on in-situ evapotranspiration monitoring, relates to a flooded marsh plant ecological water demand calculation method and aims at solving the technical problems that in an existing ecological water demand estimation method, the demands for continuous ecological function indexes and hydrological series data of wet land are large, and model parameters are more and difficult to determine, and especially in a hierarchical calculation method, the dependency on basic data information such as ecological system composition and properties is high, and weight assignment is difficult. The method comprises the steps that 1, the everyday evapotranspiration amount of a flooded marsh plant in an evaporation barrel is monitored and recorded in the whole growing season; 2, the annual ecological water demand of the flooded marsh plant to be measured is calculated. According to the method, the evaporation barrel can be arranged for various wetland plant types at all kinds of the plant coverage to achieve ecological water demand monitoring estimation of partition units. The method is applied to calculation of the flooded marsh plant ecological water demand.

The invention relates to a cultivation method for miniascape rice, which aims at producing grain and improving environment by using unused sunlight space. The method is characterized in that: soil mixed with farmyard manure and P-K compound fertilizer is filled in a plastic bag which is put on an unused ground that is ventilated, pervious to light and near a water source, basal water is irrigated on the soil, medium or early maturing seeds with developed root systems and strong drought-resistant ability are sowed or medium or early maturing rice seedlings with developed root systems and strong drought-resistant ability are transplanted. The seeds or the seedlings are watered on time, sprayed with liquid fertilizer as needed, diseases and insect pests are prevented and the rice is harvested in good time. Since the rice belongs to a mire plant which has aerenchyma, the rice still can grow normally even though the lower part of the plastic bag is not provided with any air vent, besides, moisture of the soil in the bag can be kept for a long time, which can greatly reduce watering frequency. The rice cultivated by the method of the invention has high yield, few disease and insect pest, requires no ploughing or weed clearing, can increase tree and grass coverage, beautify the environment, improve partial microclimate and produce grain that is badly needed by human beings. In addition, the method can significantly release urban heat island effect and improve urban environment; the method can also increase the rural land use capability and improve the environment in the rural areas.

The invention discloses a method for predicating biomass of overground part of Aegiceras corniculatum and belongs to the technical field of coastal mangrove ecological system protection and restoration, which is implemented according to the steps as follows: selecting Aegiceras corniculatum individuals with a certain number of n of different sizes and with statistics significances, respectively measuring the crown diameters and heights of the Aegiceras corniculatum individuals; then measuring the organisms on the overground part actually by a harvest method and implementing regression implemented according to a power exponent equation: Y=a*b, thus obtaining a power exponent equation capable of predicating the biomass of the overground part of the Aegiceras corniculatum based on the crown diameters and heights; then actually measuring the heights H (m) and the crown diameters CD (m) of the Aegiceras corniculatum plants the biomass liveweight of which is to be predicated and respectively substituting the heights and the crown diameters to the power exponent equation, wherein the calculated AGB value is the biomass liveweight (kg, fresh weight) of the overground part of the Aegicerascorniculatum tree to be predicated. As the heights and the crown diameters with obvious characteristics are adopted in the method for predicating biomass of overground part of Aegiceras corniculatum,the precision is high. The predicating method is simple and convenient, and is particularly easy to operate in muddy mangrove marshes.

The invention discloses damp-proof and sustained-release organic fertilizer for gardens. The damp-proof and sustained-release organic fertilizer comprises marsh mud, furfural residues, sesame cake, rice husks, a straw fermentation microbial agent, weathered coal, cottonseed meal, sweet potato powder, zeolite powder, shrimp shells, camellia seed shells, sodium amino dicarboxylate, calcium nitrate,potassium chloride, ammonium nitrate, ammonium molybdate, potassium sulfate, borax, phoxim, phosphorus slag, potassium dihydrogen phosphate, dipotassium hydrogen phosphate, humic acid, damp-proof performance additives and modified sustained-release filler. The organic fertilizer is excellent in damp-proof and sustained-release performance, capable of providing rich nutritional substances for plants planted in the gardens and capable of increasing the growth efficiency and survival rate of the garden plants.

The invention relates to archaeology, and discloses a method for simulating removal of exogenous strontium in ancient silk fabric. The method comprises the following steps: 1) extracting and purifying a dyeing solution with madder produced from five provinces with regional representativeness, and dyeing silk cloth samples with the dyeing solution; 2) carrying out processes of thermal ageing and ultraviolet light hydrothermal aging, simulating of marshland burial and the like on the silk cloth samples respectively; 3) processing the silk cloth samples by a water-bath nitrogen blowing apparatus and blowing away particles in the silk cloth samples with high-pressure nitrogen; and 4) cleaning the silk cloth samples with a mixed solution of hydrochloric acid and an aqueous solution of potassium permanganate, and dissolving combined exogenous strontium in the silk cloth samples. The method for simulating the removal of exogenous strontium in the ancient silk fabric, disclosed by the invention, has the advantages of blowing away the particles in the silk cloth samples with high-pressure niteogen firstly, thereby being effective and environment-friendly and low in cost, and effectively removing exogenous strontium in imitated antique silk fabric with low-concentration hydrochloric acid and an aqueous solution of potassium permanganate, without causing damage on the silk cloth samples.

The invention relates to a tidal and extremely-shallow water weight seismic source which is applicable to geophysical prospecting operation for petroleum. The tidal and extremely-shallow water weight seismic source comprises a buoyancy tank caterpillar swamp buggy and a weight seismic source, wherein the weight seismic source is arranged in the middle of the buoyancy tank caterpillar swamp buggy. A buoyancy tank caterpillar swamp buggy carrying chassis technology and a weight seismic source technology are integrated, the problem about seismic prospecting operation seismic source of a transitional zone with water depth of 0 to 1.5 m between the land and the sea is effectively solved, and the tidal and extremely-shallow water weight seismic source is high in operation reliability and facilitates environment protection of an operation region.