33results about How to "Play a role in sand fixation" patented technology

The invention relates to a sand-fixing agent preparation method field and the environmental protection field, which essentially adopts seed emulsion polymerization technology to synthesize the butyl acrylate-modified polyvinyl acetate emulsion sand-fixing agent and is used for fixing the sand.

The invention discloses a waterborne polyurethane sand-fixing agent and a preparation method thereof; the sand-fixing agent is inner crosslinking type waterborne polyurethane dispersion agent which contains neutralizer of kali salt of phosphoric acid and ammonium salt, wherein the solid content of the neutralizer is 30-45%, and the pH value of the neutralizer is 6-8. The preparation method comprises the following steps of: forming a prepolymer through the polymerization reaction of polyether polyol, diisocyanate, dihydromethyl propionic acid, the neutralizer, an inner crosslinking agent, a cosolvent and a catalytic agent, and then adding deionized water to the prepolymer for emulsification to obtain the sand-fixing agent. The waterborne polyurethane sand-fixing agent has the advantages ofwide suitable temperature range, non-toxicity, non-combustion, safety in use, free of environmental pollution and richness in nutrition and the like. As the environmental-friendly nutritional type sand-fixing agent, the waterborne polyurethane sand-fixing agent can be applied to the field of agriculture and forestry.

The present invention relates to a method for controlling desert and sand by planting jerusalem artichoke, and said method includes two portions of selecting seed and sowing, in which the tuber with peel can be selected, and its sowing, includes the following steps: soaking the selected tuber in pesticide solution, stirrinbg solid water and sand in pit, sowing and filtering sand. It can greatly increase humic matter in the desert, and can change the desert into fat soil.

The invention relates to a composite for forestation, wind protection and sand fixation along the line of railway or highway. The composite is prepared by the following raw materials in proportion by weight: 50-95 parts of polystyrene, 15-50 parts of plasticizer, 60-150 parts of organic solvent, 5-25 parts of sodiumhydroxymethyl cellulose, 15-35 parts of dodecyl ammonium chloride, 100-300 parts of distilled water, 30-75 parts of gelantinizer, 3-20 parts of humectant and 0.002-0.03 part of photosensitive curing agent. The composite in the invention is diluted by adding water until the solid-containing amount in the composite is 1-10%, the diluted composite can be sprayed on soil and desert and then solidified to a ground film; and the composite takes the effect of preventing earth, fixing sand and preventing a large amount of water from evaporating, and has important sense for improving soil, managing sand, vegetating and foresting and improving ecological environment.

The invention discloses a wind prevention and sand fixation greening planting technology with good sand control effect. The wind prevention and sand fixation greening planting technology mainly comprises the following steps of: firstly arranging a plurality of strip sand-protecting barriers in a traveling dune zone; then mix-seeding herbaceous plant seeds in open grounds among the strip sand-protecting barriers, and planting shrub seedlings at the positions where the strip sand-protecting barriers are located; and finally fertilizing among the strip sand-protecting barriers and inside the strip sand-protecting barriers. According to the wind prevention and sand fixation greening planting technology, normal germination growth of most herbaceous plant seeds and shrub seedlings can be ensured without planting by multiple times; moreover, the growth period of herbaceous plants is relatively short, so that grass capable of sand fixation can be formed in a short time to further ensure normal growth of shrub seedlings; a grass and shrub forest can be formed in a relatively short time, two to three years in general, through the combination of the sand fixation of sand-protecting barriers with grass and shrub plants so as to achieve the effects of wind prevention and sand fixation; and the desertification of land can be effectively prevented. The technology is suitable for popularization and application in the technical field of sand control.

The invention relates to a water-retaining agent and a preparation method, specifically to a water-retaining agent containing aloe gel and a preparation method thereof. The water-retaining agent is prepared from the following raw materials (by weight): 3-10 parts of aloe gel, 10-20 parts of humus, 50-70 parts of plant fiber, 10-20 parts of starch, 2-3 parts of ferric sulfate, 25-35 parts of acrylic acid, 7-15 parts of acrylamide, and 80-120 parts of 27-37% aqueous alkali. The water-retaining agent provided by the invention is environment-friendly, has advantages of simple process and strong water retaining capacity, and can provide nutrients essential for growth of plants, and has effects of fixing sand and preserving water and improving soil.

The invention belongs to the technical field of planting of flowers and plants and provides a planting method for promoting growth of lilies. The method comprises the steps: (1) planting the lilies in sand fixation vessels, wherein each sand fixation vessel is of a cavity structure with an open end and is made from waterproof and air-permeable granules and a hydrophobic binder through binding, and pores, where gas molecules can pass through and liquid water molecules cannot pass through, are formed among the waterproof and air-permeable granules; (2) burying the sand fixation vessels in the step (1) in sandy soil, so as to enable sand fixation plants to form meshed vegetation zones and achieve fixation treatment on the sandy soil; and (3) planting the lilies in the meshed vegetation zones in the step (2). According to the planting method provided by the invention, the growth speed of the lilies can be increased, the flowering phase of the lilies is prolonged, and the ornamental value of the lilies is increased.

The invention discloses a desert oligotrophic bacterium DOB153 and its application in sand fixation. A desert oligotrophic bacterium Bacillus sp.DOB153 was obtained through isolation, screening, breeding, and domestication in the Gurbantunggut Desert in the Junggar Basin, Xinjiang. The preservation number of the strain is CGMCC NO.11925. The isolated The bacterial solution prepared by the oligotrophic bacteria DOB153 strain is used on the desert surface not only to play a role in sand fixation, but also to provide better water conditions for the germination of some plant seeds with a slower germination rate, so that some plants that cannot germinate due to insufficient soil moisture Get growth and development, not only play a role in sticking sand particles, preventing quicksand activation, but also effectively increasing the number of main microorganisms in the soil, increasing the content of main nutrients in the soil, enhancing the activity of some soil enzymes, and can obviously restore algae crusts. It has a wide range of applications in sand fixation. Value.

The invention discloses a bionic desert passing stick which consists of a stick body, a stick support and a stick tip, wherein the stick body is in threaded connection in an upper pallet above the stick support; the stick tip is of conical shape and in threaded connection in a lower pallet below the stick support; the stick support consists of an upper pallet, multiple upper bracket rods, multiple lower bracket rods, a return spring, a lower pallet and two flexible skins; the return spring is fixed between the upper pallet and the lower pallet; the upper ends of the multiple upper bracket rods are hinged on the outer edge of the upper pallet; the lower ends of the lower bracket rods with the same number as the upper bracket rods are hinged on the outer edge of the lower pallet; the upper ends of the lower bracket rods are hinged on the lower sections of corresponding upper bracket rods; and the periphery of the multiple upper bracket rods and the periphery of the multiple lower bracket rods are covered with a flexible skin respectively. The bionic desert passing stick disclosed by the invention is used in desert, prevents unfavorable phenomena such as sinking, sliding and the like, and has relatively good desert passing performance.

The invention discloses a waterborne polyurethane sand-fixing agent and a preparation method thereof; the sand-fixing agent is inner crosslinking type waterborne polyurethane dispersion agent which contains neutralizer of kali salt of phosphoric acid and ammonium salt, wherein the solid content of the neutralizer is 30-45%, and the pH value of the neutralizer is 6-8. The preparation method comprises the following steps of: forming a prepolymer through the polymerization reaction of polyether polyol, diisocyanate, dihydromethyl propionic acid, the neutralizer, an inner crosslinking agent, a cosolvent and a catalytic agent, and then adding deionized water to the prepolymer for emulsification to obtain the sand-fixing agent. The waterborne polyurethane sand-fixing agent has the advantages ofwide suitable temperature range, non-toxicity, non-combustion, safety in use, free of environmental pollution and richness in nutrition and the like. As the environmental-friendly nutritional type sand-fixing agent, the waterborne polyurethane sand-fixing agent can be applied to the field of agriculture and forestry.

The invention relates to an ecological sand control method. The method comprises the following steps: 1) putting 1-2 parts of an organic flocculating agent by weight and 1-2 parts of a gel water-retaining agent by weight into 20-100 parts of water in sequence, stirring and blending; 2) putting smashed and screened 2-3 parts of sludge by weight, 2-3 parts of stalks by weight, and 10-15 parts of sandy soil by weight which is taken on the spot and is smashed and screened to the mixture prepared in the step 1); 3) pouring products of the step 2) into a container, stirring and blending, using a mortar pump to convey the product to a forming mould, and forming at temperature of 40-60 DEG C; 4) after a culture medium is formed and demolded, conveying the culture medium to a place whose sandy soil needs improvement through a production line, and putting sandy plants in order on the spot and transplanting the sandy plants. The ecological sand control method makes plants be able to use water and nutrient substances in the culture medium to keep growing, root systems of the plants would be expanded with growth, so as to play a sand stabilizing effect and control sandy soil. The ecological sand control method can perform mechanized construction, and is simple and rapid and is pollution free.

The invention discloses a desert oligotrophic bacterium DOB150 and its application in sand fixation. An oligotrophic bacterium Bacillus sp.DOB150 CGMCC NO.11925 was obtained through isolation, screening, breeding, and domestication in the Gurbantunggut Desert in the Junggar Basin, Xinjiang. It is a new strain. By using the isolated After the bacterial agent prepared by the oligotrophic bacteria DOB150 strain is sprayed in the desert, it can not only play a role in sand fixation, but also may provide better water conditions for the germination of some plant seeds with a slow germination rate, so that some plants that cannot germinate due to insufficient soil moisture The germinated plants grow and develop; after the prepared bacterial agent is sprayed into the desert, it not only plays a role in sticking sand particles and preventing the activation of quicksand, but also effectively increases the number of main microorganisms in the soil, increases the content of main nutrients in the soil, and enhances the activity of some soil enzymes. And can obviously restore the algae crust, and has wide applicability.

The invention discloses a starch-grafted waterborne polyurethane sand fixing agent and a preparation method thereof. The sand fixing agent is a starch-grafted waterborne polyurethane dispersion liquid of which the viscosity is 20-500 mPa.s at the temperature of 25 DEG C, the solid content is 30-45 percent by weight, the pH value is 6-8, and the storage stability is higher than six months; and the Shore hardness of a filmed dispersion liquid is 35-45. The sand fixing agent is obtained by undergoing a polymerization reaction on polyether polyol, diisocyanate, dimethylolpropionic acid, a neutralizing agent, starch, a latent solvent and a catalyst for forming a performed polymer and adding into deionized water for emulsifying. The starch-grafted waterborne polyurethane sand fixing agent has the advantages of degradability, nontoxicity, non-flammability, use safety, environmental friendliness, high nutrition and the like, and can be widely applied in the fields of agriculture and forestry as an environmentally-friendly nutritional sand fixing agent.

The invention relates to a sand prevention fence device and a sand prevention system. The sand prevention fence device includes a support column, both sides of the support column are respectively provided with at least one fixing pile, a sand prevention net is arranged on the support column, and the sand prevention net is separately connected with the fixing piles at both sides of the support column. Since the fixing pile and the support column are arranged in a triangular shape, the sand prevention net is arranged on the support column and is connected with the fixing piles, so as to form a sand accumulation area, accordingly, the range of sand prevention and resistance can be effectively expanded and the sand accumulation amount can be improved. According to the sand prevention fence device and the sand prevention system, multiple rows of the sand prevention fence devices are arranged in a spaced way and each two adjacent rows of the sand prevention fence devices are subjected to a staggered arrangement, thus a plurality of sand prevention fences having the functions of transporting and guiding sand are used for replacing the original integrated linear sand prevention fence, the sand prevention effects are scattered on each of sand prevention fences instead of the original single linear sand prevention fence, and the sand prevention effects are better.