70results about How to "Promote ecological restoration" patented technology

A biomass carbon source release combination type ecological floating bed water purifying device comprises an ecological floating bed comprising a floating frame and a basket for planting an emergent aquatic plant, a packing groove comprising a groove body and a groove bottom board, and a bottom groove used for planting a submerged plant and internally provided with the packing groove, wherein each of the four corners in a groove body of the bottom groove for planting the submerged plant is provided with a bottom groove suspending ring at the upper end of a bottom groove suspending rod extending out of an upper port of the bottom groove body, each of the four corners in the groove body of the packing groove is provided with a groove body suspending rod extending out of an upper port of the packing groove, a groove body suspending ring at the upper end and the opposite part of the floating frame are respectively bonded by the two ends of an inner cable and an outer cable, the bottom groove used for planting the submerged plant and the packing groove are both made of a board uniformly provided with holes, an artificial water plant or / and a cob is / are suspended at the bottom part of a basket body of the basket for planting the emergent aquatic plant, a zeolite layer, a cob layer, a wheat straw layer and a coal cinder layer are respectively paved between vertical partition boards in the packing groove, and a rope provided with an anchor at the other end is bonded on a vertical floating tube on each of the two sides of the floating frame. The biomass carbon source release combination type ecological floating bed water purifying plant is applicable to open riverways, lakes or landscape water bodies.

The invention discloses a brevibacterium halotolerans with relatively high azotase activity and application thereof in ecological restoration. The brevibacterium halotolerans GDSD21 is collected in the China General Microbiological Culture Collection Center with the collection number of CGMCC No.12402. Nitrogen-fixing bacteria are separated from rhizosphere soils of field-crop roots, further strains with relatively high azotase activity are screened, and finally the efficient nitrogen-fixing bacterium brevibacterium halotolerans GDSD21 is screened. The azotase activity of the brevibacterium halotolerans GDSD21 is obviously higher than that of common production strain azotobacter chroococcum ACCC11103 for microbial fertilizers, and the brevibacterium halotolerans GDSD21 has extensive application prospects in soil improvement, increasing of the soil fertility, ecological restoration of a virgin land, and production of industrialized seedling-rearing inoculation agents, nitrogen-fixing microbial agents and bio-organic fertilizers for vegetables.

The invention provides an ecological rehabilitation promoting snow-melting agent and a preparation method thereof .The snow-melting agent is prepared from, by mass, 10-30 parts of polyaspartic acid, 30-50 parts of humic acid, 10-30 parts of acetate and 0-20 parts of chlorine salt .Firstly, humic acid is prepared according to the mass proportion, potassium permanganate and 30% hydrogen peroxide are added, and a combined pre-oxidation reaction is conducted; after the combined pre-oxidation reaction is finished, acetate and chlorine salt are added, stirred and dissolved, and the mixture is cooled to room temperature; polyaspartic acid is added, and after the materials are evenly mixed, the mixture is directly contained in a barrel to serve as a liquid snow-melting agent or is sprayed to be prepared into a solid particle snow-melting agent .The snow-melting agent can be used for melting snow and ice, stimulating plant growth and reducing harm of chlorine salt snow-melting agents left in soil to the environment .Besides, biological degradation can be achieved, a preparation process is simple, production cost is low, and the snow-melting agent is suitable for industrial application.

The invention discloses a method for repairing heavy metal pollution tailings with charcoal-based slow release fertilizer and imperata cylindrica. The method includes the following steps that according to the mass ratio, 1-5 parts of charcoal, 100 parts of polyurethane emulsion with the concentration being 40%-50%, 5-10 parts of starch and 150-300 parts of distilled water are mixed to prepare a coating solution; 40-60 parts of composite organic fertilizer particles are suspended into 10-20 parts of the prepared coating solution, and slow release coating treatment is conducted to obtain the charcoal-based slow release fertilizer; the prepared charcoal-based slow release fertilizer is mixed with the heavy metal pollution tailings; and the imperata cylindrica is planted into the tailings containing the charcoal-based slow release fertilizer. By the adoption of the method, the treating effect of the heavy metal pollution tailings is good, the method is environmentally friendly, cost is low, and pollution is small; and heavy metal pollution is reduced, and meanwhile cycling utilization of recourses and lasting effect playing of fertilizer nutrients can be achieved.

The invention discloses an agricultural waste / immobilized denitrifying bacteria mixed ecological bag and system for slope protection. Agricultural wastes, plant seeds (2) and plant growth soil (3) are added into the ecological bag. Denitrifying bacteria are immobilized on the agricultural wastes, medium sand and coarse sand are added into the plant growth soil, and plants (4) are grown on the bag body (5). The ecological bag system is mainly formed by alternately piling ecological bags 1 (51) and ecological bags 2 (52); a crude cotton rope (7) is clamped among each layer of the ecological bags and between every two ecological bags; and a soft material pad (6) is clamped between every two ecological bags 1 on the same layer. The agricultural wastes are recycled and combined with the immobilized denitrifying bacteria to enhance the water purification functions of the aquatic plants and microbes, thereby promoting the ecological restoration of the aquatic environment.

The invention relates to an irrigation-free sandbreak forest planting technique. The irrigation-free sandbreak forest planting technique is characterized in that in an arid desert area, according to a sandbreak forest construction plan, technical sand control facilities, sand control boards, are used for constructively covering a sand source to be forested in order to stop the movement of wind-blown sand in real time; and as the sand control boards are laid, a forest is synchronously and directly planted around the sand control boards. In the technique, the sand control boards have the functions of rainwater collection and water conservation, so that natural rainfall can be effectively stored, and therefore a rainwater-collecting cistern effect is generated. The technique can ensure that soil can keep desert plants in a suitable water-retaining state, the constructed sandbreak forest can survive and can be conserved without being irrigated, and the recovery of the ecology of the sandbreak area can be started in real time. The technique is the most effective, simplest, most reliable, most economical, able and cheapest engineering-biological measure in current measures for changing the natural ecological environments of deserts as soon as possible.

The invention discloses a treatment method for converting acidic tailings into soil, and belongs to the technical field of ecological restoration. The method comprises the following steps that biomasswaste and the acidic tailings are separately aired, crushed and sieved; the biomass waste and the acid tailings are carbonized to obtain a carbide; the carbide is uniformly spread on the waste land of the strong acid tailings, a certain amount of compound fertilizer, organic fertilizer and artificial soil are added into the carbide, and the mixture is uniformly mixed; and stress resistance trees,shrubs and herbaceous plants are selected to be planted. According to the method, the biomass waste such as straws are fully utilized, so that soil fertility is increased; meanwhile, carbonization isconducted to promote thermal weathering of the tailings, and the conversion of the tailings into the soil is accelerated, so that the ecological restoration is accelerated; and fine charcoal is wrapped around the acid tailings to isolate sulfur from being in contact with the air, so that generation of an acid liquid is reduced.

The invention discloses a planting method of plateau mine herbaceous plants, comprising the following steps of: preparing soil, seeding, and spraying a nutrient solution, wherein the nutrient solution comprises the following components in proportion: 0.5L of original mixing liquid, 0.5L of water and 100g of water-retaining agent and the original mixing liquid comprises the following components: 1650mg / L of NH4NO3, 1900mg / L of KNO3, 370mg / L of MgSO4 7H2O, 170mg / L of KH2PO4, 440mg / L of CaCl2 2H2O, 0.83mg / L of KI, 6.20mg / L of H3BO3, 22.30mg / L of MnSO4 4H2O, 8.60mg / L of ZnSO4 7H2O, 0.25mg / L of Na2MoO4 2H2O, 0.025mg / L of CuSO4 5H2O, 0.025mg / L of CoCl2 6H2O, 28.70mg / L of FeSO4 7H2O, 37.3mg / L of Na2-EDTA 2H2O, 100 mg / L of inositol, 0.5mg / L of niacin, 0.5mg / L of pyridoxine hydrochloride, 0.1mg / L of thiamine chloride, 2mg / L of glycine and 25g of sucrose; covering soil; and covering mulching film. Through the implementation and the usage of the method, the germination rate and the survival rate and the per-plant tiller number of elymus dahuricus turcz can be greatly increased, therefore, the possibility of recovering vegetation of mines is increased.

The invention discloses a soil ecological restoration system. The system comprises a monitoring device and a spraying device, an image processing system and a soil preliminary detection system are arranged in the monitoring device, and a deep learning module and a central processing module are further arranged in the monitoring device; and the central processing module is in communication connection with a restoration system, the deep learning module is in communication connection with the central processing module, the deep learning module summarizes data collected from the outside, and the deep learning module transmits the analyzed data to the central processing module. Through cooperative use of the image processing system, the data storage module and the deep learning module, distribution of heavy metals in mine soil can be divided according to plant production distribution conditions in mine soil, divided areas can be accurately positioned through a GPS positioning module, and the accurately positioned and divided areas can reduce the manpower and time consumed by manual detection, so the ecological restoration speed of the soil on the mine is increased.

The invention discloses an irrigation device for mine water based on ecological restoration, comprising a box body, a pumping box is fixedly connected to the top of the left side of the box body, and a storage box is fixedly connected between the top and the bottom of the inner wall of the box body , and the top of the box is fixedly connected with a top box, the bottom of the inner wall of the top box is fixedly connected with a motor through a motor base, the output shaft of the motor is fixedly connected with a first pulley, and the surface of the first pulley is connected with a belt The side of the belt away from the first pulley runs through the top box and the box body in sequence and extends to the inside of the box body. The present invention relates to the technical field of ecological restoration. The irrigation device for mine water based on ecological restoration can regularly add disinfectant, and at the same time can add different disinfectants to thoroughly disinfect mine water, so that the disinfectant and mine water can be evenly mixed to prevent It affects the later irrigation and greatly promotes ecological restoration.

The invention discloses a method for preventing and controlling water and soil loss of a soil pile in a mine abandoned land in a semi-arid area. The method comprises the following steps: step S1: soilis laid and compacted on a slope and a platform of the soil pile of the mine abandoned land; step S2: a plurality of rows of ecological bags are arranged on the slope of each step from top to bottomalong the height of the slope, and perennial shrubs and perennial herbs suitable for local growth environment are intercropped on the slope and the platform of the adjacent two rows of ecological bags; step S3: a degradable sand-proof net is used to cover the bare land and the platform on the slope surface; step S4: vegetation management is carried out regularly. Herbs and shrubs are respectivelyplanted on the slope and the platform of the soil pile in mine abandoned land. The rows of ecological bags are arranged on the slopes from top to bottom, which is conducive to soil and water conservation of the soil pile in mine abandoned land in semi-arid area.

The invention relates to the field of environmental protection, and discloses an establishing method of an effective soil layer of an ecological protection structure of a high steep rock slope. Aftera cleaned slope surface is reinforced through threaded anchor rods, geocells and galvanized machine woven iron gauze, the effective soil layer needed by ecological slope protection is established in the manner that wet process soil spraying and crane soil filling are combined. By means of the establishing method of the effective soil layer, the thickness of the effective soil layer established onthe slope surface of the high steep rock slope is not smaller than 15 cm, the problem that soil with the thickness larger than 10 cm is hardly established on the slope surface of the high steep rock slope due to the gravity effect is effectively solved, construction is easy and convenient, the effect is remarkable, and a good soil environment is provided for the growth of plants.

Provided is a method for protecting a dam body and a dam foundation of a sand blocking dam. The method comprises: processing the front portion and the rear portion of a main dam and the front portionand the rear portion of an auxiliary dam into planes, and laying soil; planting herbaceous plants on the upstream of the main dam and the upstream of the auxiliary dam so as to retain silt, slow downflow speed and disperse water flow; planting shrubs below the main dam and the auxiliary dam, so that the flowing speed and splashing erosion of flowing water are reduced through the shrubs; and planting moss on the dam body so as to reduce adherent flow erosion. The ecological vegetation is used for gradient energy dissipation, and damage of upstream long flowing water to the sand blocking dam can be effectively reduced for a long time. Compared with existing engineering measures such as a steel bar gabion, the protection effect of the method is increased along with the increase of time, themethod is low in cost and environmentally friendly, ecological restoration in the debris flow channel can be accelerated through soil deposition around the herbaceous plants, and sustainable development of channel ecology is facilitated.

The invention discloses a composite water-permeable material, and a production method and derivative products thereof. The composite water-permeable material is formed by mixing the components of: a chemical material base material, a plasticizer added into the chemical material, and a filling material added into the chemical material base material, wherein the filling material comprises nano-scale pores and is coated by using a separation agent. When the composite water-permeable material is processed, the separation agent is gradually subjected to a chemical reaction with benzene ring in the plasticizer, and is dissolved, such that the nano-scale micro-pores of the filling material are opened, and novel uniform and dense micro-pores are formed between the plasticizer and the filling material. The micro-pores communicate with each other, such that water-permeable channels are formed. The composite water-permeable material can be produced into water-permeable membranes, water-permeable pipes, and water-permeable containers. The products have uniform and dense nano-scale channels, and can be used in the field of agricultural water-saving irrigation. The products can be paved on the ground and / or can be buried under ground, and can be used for a long time. With the products, purposes of water saving, energy saving, labor saving, and eco-friendliness can be achieved.

The invention relates to a soil-environment microorganism disinfectant and a preparing method thereof. The disinfectant is a liquid fertilizer type soil disinfectant prepared from inorganic nutrient substances and microorganism cenobium capable of removing soil toxins in a combined mode. According to the disinfectant and the preparing method, five kinds of bacteria which have bacterial strains such as cryptococcus humicolus, lactobacillus acidophilus, coralline Nocardia amarae, actinomycetes agrobacterium tumefaeiens and trichoderma koningii and have ingredients capable of powerfully removing toxic pollutants in soil are screened out; test surveying indicates that after the microorganism disinfectant is applied, 85% to 90% of remaining hazardous substances such as pesticides can disappear in 30 days to 50 days, and the remaining hazardous substances can be completely removed after the microorganism disinfectant is continuously applied several times.

The present invention relates to soil improvement method, and is especially method for repairing alkali spot soil with furfural slag and Atriplex hortensis. Furfural slag as a kind of acid biomass contains rich organic matter, humic acid, nitrogen fertilizer, phosphate fertilizer, potash fertilizer and trace elements essential for plant to grow and has excellent effect of lowering soil pH value, activating calcium and magnesium salt and improving soil physical and chemical properties. The present invention repairs alkali spot soil through turning over soil, adding furfural slag, banking, leaching, seeding Atriplex hortensis, field management and other steps. The present invention has the advantages of environment friendship, low cost, fast effect, etc.

The invention discloses a novel device and method for improving soil at bare arsenic sandstone areas to plant trees and shrubs. The device includes a device body and seedling planting holes; the soilin the seedling planting holes is successively provided water-retaining layers, planting layers and anti-evaporation layers from bottom to top; the externals of the seedling planting holes are provided with surplus arsenic sandstone accumulated fish-scale pits; and seedlings are arranged in the seedling planting holes. The novel method for improving soil at bare arsenic sandstone areas to plant trees and shrubs is also disclosed. The technical schemes are to utilize convenient local resources-arsenic sandstone and aeolian sandy soil to improve the soil at the bare arsenic sandstone areas and to plant vegetation in the improved soil at the bare arsenic sandstone areas, so that the recovery of the vegetation at the bare arsenic sandstone areas can be better achieved. The device can maximallyincrease the utilization efficiency of water at the bare arsenic sandstone areas, so that soil erosion can be reduced, and ecological restoration can be promoted.

The invention relates to the field of ecological restoration of coal gangue hills, in particular to a solid waste-based porous material, preparation and an ecological restoration method for the coal gangue hills. The method comprises the steps: mixing a coal-based solid waste restoration material and a mycorrhizal fungus solid fungicide to restore the coal gangue hills, wherein the coal-based solid waste repairing material is prepared by mixing a coal-based solid waste porous material, low-rank coal and waste organic matters, adding a microbial quick decomposition agent, performing aerobic fermentation and performing precipitation; the solid mycorrhizal fungi are loaded on the solid waste-based porous material, so the activity of the solid mycorrhizal fungi can be kept for a long time, and the solid mycorrhizal fungi are more convenient to store compared with liquid fungicide; the porous material provides a safe and appropriate growth space for mycorrhizal fungus hyphae; the substances secreted by the mycorrhizal fungi can influence the performance of the porous material, and can strengthen the action of the porous material and soil particles, thereby having potential to promote the formation of a soil aggregate taking the porous material as a core. Through the structure-function relationship between the coal-based solid waste porous carrier material and the activity of mycorrhizal fungi, the growth of mycorrhizal fungi and the rooting of plants are promoted, and the ecological restoration of the ecologically fragile area of the coal-electricity base is realized.

The invention belongs to the technical field of rural domestic waste treatment, particularly relates to a method for in-situ ecological treatment of town domestic waste water by using river and creek converging. The method comprises the following steps that town rivers and creeks serve as carriers, an ecological protection slope is constructed along two sides of the rivers and creeks, an in-situ biology gate purification channel section in length of L1, a concrete downflow weir in the length of L2, a batch-type in-situ oxygenation tank section in the length of L3, a surface flow constructed wetlands system section in the length of L4 and a geotechnical cloth downflow weir in the length of L5 are sequentially constructed along a water flowing direction of the rivers and creeks to serve as wastewater treatment units. Domestic waste water is guided in the rivers and creeks for converging through the ecological protection slope on two sides of the in-situ biology gate purification channel section, and then the domestic waste water sequentially flow through the wastewater treatment units. The method uses original rivers and creeks in towns to serve as the carriers of the domestic waste treatment, uses a rural waste water collection and treatment mode which is good in treatment effect, simple in management and maintenance, low in cost of construction and low in energy consumption and has great significance on a problem that town domestic waste water is difficult to collect and treat in our country.

The invention provides a method for treating trace pharmaceuticals and personal care products (PPCPs) in water through a biological activation aeration process. The method comprises the following steps of: (1) in 3 to 5 days before biological activation aeration aerobic treatment, adding a biological activator at the total concentration of 10-80mg / L into a primary aerobic pond each day; and (2) performing three-stage aerobic treatment on water containing trace PPCPs, wherein an aeration quantity ratio of the first stage to the second stage to the third stage is (5-4):(3-2):(2-1), the water inlet speed is 0.01-0.1m / s, and the aeration is performed for 10 to 20 hours. By the treatment method, the operating cost is low, the occupied area is small, residual sludge is not generated, the operating and maintaining processes are simple, complicated equipment is not required to be manufactured, and the method is easy to promote and apply. When the water containing the trace PPCPs is treated bythe method, the removal efficiency is 70 to 95 percent.

The invention discloses a bottom sludge coagulating reduction as well as a preparation method and application thereof. The bottom sludge coagulating reduction comprises the following ingredients in parts by weight: 25-35 parts of polyaluminium chloride, 25-35 parts of polyferric sulfate, 1-5 parts of sodium polyacrylate, 15-25 parts of calcium bentonite, 5-15 parts of dolomite, 5-10 parts of a bottom sludge conditioner and 1-5 parts of sodium ferrate. According to the coagulating reduction, in-situ, fast, efficient and stable coagulation, passivation and settling separation are performed on bottom sludge, suspended matters and the like in a governance process of urban black and odorous water bodies, so that the volume of dirty muddy water and pollutants such as COD (chemical oxygen demand), NH3-N, TP (total phosphorus), heavy metals and the like in the water bodies are quickly reduced, the transparency of the water bodies is purified, the self-purification capacity of the water bodies is enhanced, and the ecological restoration of the water bodies is promoted. Therefore, the purposes of landscape restoration and sludge and water co-governance are achieved; compared with the traditional black and odorous water body bottom sludge dredging technology, a technology adopting the bottom sludge coagulating reduction has outstanding advantages.

The invention relates to the technical field of landfill, in particular to an ecological restoration method for a construction refuse landfill. The ecological restoration method comprises the steps of A, selecting the landfill; B, constructing a rainwater drainage ditch in the top of a high slope; C, filling the landfill with construction refuse for forming a construction refuse layer, laying a composite non-woven fabric layer on the upper surface of the construction refuse layer after construction refuse with the thickness reaching H meters is accumulated, continuously filling the landfill with the construction refuse and repeating the operation of filling the landfill with the construction refuse until filling-in is completed; D, laying a soil layer on the upper surface of the construction refuse layer at the top layer after filling-in of the construction refuse is completed; and E, planting plants on the soil layer and arranging a drainage ditch in the edge of the soil layer for draining rainwater out of the landfill. According to the ecological restoration method, landfill of the construction refuse can be completed well, the hidden danger of landslides or debris flow is avoided, and the surface of the construction refuse landfill can be ecologically restored and is prevented from being damaged.

The invention relates to a plant growth regulation complexing agent for strengthening perennial ryegrass to restore cadmium-polluted soil and application of the plant growth regulation complexing agent. The plant growth regulation complexing agent is prepared from the following raw materials: 12.5 to 41 parts of polyamine, 4 to 41 parts of salicylic acid, 8 to 60 parts of sodium nitroprusside, 0.8 to 10 parts of sodium selenite, 50 to 75 parts of Tween and 100000 to 150000 parts of water. A traditional single exogenous plant growth regulating substance is broken through, the plant growth regulating complexing agent is compounded by various exogenous substances including polyamine, salicylic acid, sodium nitroprusside and sodium selenite, various exogenous substances are organically combined, the enrichment rate of ryegrass to cadmium can be increased, the cadmium content of ryegrass can be increased, and the cadmium content of ryegrass can be increased. Meanwhile, the capability of the ryegrass on stress of other organisms and abiotic organisms is enhanced, and the problem that the biomass of the ryegrass is small is solved. The plant growth regulating complexing agent is used for strengthening the perennial ryegrass to restore the cadmium-polluted soil, the characteristics that the perennial ryegrass is harvested for multiple times in one year and the harvesting interval is short are fully utilized, the time for phytoremediation of the cadmium-polluted soil is shortened, and the cadmium pollution level in the soil is reduced.

The invention relates to a method for clone plant sand stabilization, and belongs to the technical field of land desertification treatment. The method for clone plant sand stabilization comprises thesteps that a latticed plant belt is planted by using shrubs and intensive clone plants, and then the guerilla clone plants and the intensive clone plants are planted in grids in a mixed mode. According to the method, the shifting sand stabilization fixing effect is greatly improved, the recovery rate of land vegetation is greatly increased, and the coverage rate of the land vegetation can be restored to 80% or above within 1-2 years; the biological yield per unit area can be greatly increased within 1-2 years by 50-250 times, and the species richness and the species number in a treatment region are also greatly improved; in general, the treatment capacity on desertificated land and the shifting sand stabilization capacity of the sand stabilization method are better than those of other methods.

The invention discloses a water body stabilization control method after lake dredging. The water body stabilization control method comprises following steps: (1) water quality monitoring of lakes to be dredged is carried out before dredging and in dredging, lake water quality changing in dredging is monitored, and microorganism adding amount is calculated; (2) after dredging, stabilization control operation is carried out, activated composite water purifying microorganism bacterium agents are added into water bodies at a certain amount, water quality changing is monitored, microorganism bacterium agent adding schemes are adjusted, wherein the microorganism bacterium agents are obtained via selection, are capable of inhibiting growth of pathogenic bacteria, and promoting restoration of bottom mud microecosystems; (3) auxiliary restoration is selected based on water quality conditions, and aeration equipment and microbial flocculants are adopted; and (4) after construction, water quality is monitored continuously, and later water quality maintenance is carried out. The water body stabilization control method is capable of solving a plurality of environmental problems caused by bottom mud dredging, realizing rapid degradation of nutritive salts released after dredging, and ensuring water body stability after dredging.

The invention relates to a preparation method of vinyl acetate sand fixing emulsion with damping capacity. Emulsion polymerization is performed through ultrasonic emulsification; copolymerization is performed on vinyl acetate used as a main monomer, methyl methacrylate used as an auxiliary monomer and a pendant chain-containing long-chain branched acrylate monomer used as a functional monomer; a water-soluble peroxy compound is used as an initiator, and anionic and nonionic emulsifiers are used as a composite emulsifying system to synthesize the vinyl acetate sand fixing emulsion with the damping capacity. The product has the advantages of excellent bonding performance, high wind erosion resistance, no pollution to the environment, good use durability, simple preparation method, suitability for large-scale production and the like, and can be used for preventing and treating desertization of a desert with a large temperature difference and strong wind.

The invention discloses a method of applying scirpus subulatus in a tidal wetland to carry out ecological restoration. The method mainly comprises the steps of (1) comprehensively selecting a grass-friendly beach; (2) constructing a tidal creek system; (3) selecting field planting time; (4) optimizing provenance and collecting seedlings with soil; (5) carefully transporting the seedlings; (6) specifying a field planting method; (7) sufficiently applying base fertilizer and topdressing; and (8) enhancing initial management and protection. The practice demonstrates that survival and growth of the scirpus subulatus transplanted in the tidal wetland can be significantly promoted by using the method to plant the scirpus subulatus in the tidal wetland, effective restoration and sustainable development of coastal wetland ecosystems can be promoted, and certain economic benefits can also be obtained.

The invention provides a construction method for laying interlocking block soft mattress in an upper-beach shallow end under a low water level. The construction method comprises the steps of binding concrete interlocking blocks on an arrangement boat to make the soft mattress, arranging traction equipment on a bank slope, making a traction rope connected with the traction equipment and a tractionsteel beam, using a polypropylene rope to bind the traction steel beam and the soft mattress bond with the concrete interlocking blocks, and then pulling the soft mattress on the arrangement boat to adesigned position of the upper-beach shallow end through the pulling equipment to achieve laying construction of the soft mattress of the upper-beach shallow end under a low water level at a time. Compared with the prior art, the construction method solves the problems in the prior art that under a low water level, mat arrangement of the upper-beach shallow end under the low water level and the placement of concrete interlocking blocks are separately conducted, and the soft mattress cannot be laid as a whole; and meanwhile, the construction method has the advantages of being safe in construction, high in quality and efficiency and the like.

The invention discloses a comprehensive biological improvement method for severe saline-alkaline grassland. The method sequentially comprises the following steps: (1) applying a crop straw fertilizer as a base fertilizer to the earth surface; (2) conducting soil preparation; (3) sowing salt-alkali tolerant pioneer plants; (4) conducting grassland management. Leymus chinensis, awnless brome, roegneria kamoji, barnyard grass and sesbania which are extremely high in saline-alkaline tolerance and have certain waterlogging tolerance are used as basic plant materials, the corn straw fertilizer is used as a soil improvement additive material, the saline-alkaline tolerance and waterlogging tolerance plant materials are sown according to a certain proportion through the agricultural measure of shallow ploughing and turning or light raking, a stable and high-diversity mixed vegetation community is constructed, and the vegetation recovery effect is achieved; the corn straw organic fertilizer is selected, the soil pH is adjusted, meanwhile, the soil physical structure is improved, soil organic matter and nutrients are increased, a good soil biological environment is created, and formation and development of plant communities are promoted; and surface layer shallow turning or light raking measures are adopted, the saline-alkaline soil cementation phenomenon is effectively reduced, and the improvement cost is reduced.

The invention discloses a hanging mode based quick greening method for mucuna sempervirens. The method comprises the steps of performing seedling selection: obtaining a biennial mucuna sempervirens container seedling, wherein the length of the biennial mucuna sempervirens container seedling is greater than or equal to 150cm and the ground diameter of the biennial mucuna sempervirens container seedling is greater than or equal to 0.4cm; performing land preparation: digging a belt-shaped ditch in a soil position adjoining a protection slope rock at the top end of a perpendicular rock protection slope, placing surface soil and subsoil separately, filling the bottom of the belt-shaped ditch with decomposed humus soil and compound fertilizer, covering the interior of the belt-shaped ditch with the surface soil, stirring the surface soil, the decomposed humus soil and the compound fertilizer uniformly, and then covering the interior of the belt-shaped ditch with the subsoil; performing planting: digging a planting hole in the belt-shaped ditch, removing a container from the mucuna sempervirens container seedling, and planting the mucuna sempervirens container seedling in the planting hole; performing rattan guiding and pressing: guiding and fixing rattan stems newly growing from the mucuna sempervirens container seedling to the slope surface of the perpendicular rock protection slope; and performing rattan trimming: after the coverage of the perpendicular rock protection slope meets the requirement, trimming rattans which grow reversely, grow upwards or are beyond the perpendicular rock protection slope.