53 results about "Salt marsh" patented technology

The invention provides seawater coral aggregate concrete prepared by matching low-heat portland cement for ocean projects, a seawater coral aggregate concrete salt fixing agent, a pre-screened natural coral-sand mixture (with the particle size of 0-20 mm), a pre-screened broken coral-sand mixture (with the particle size of 0-31.5 mm), a coral aggregate seawater concrete water reducing agent, a concrete retarder, a concrete defoaming agent, natural seawater or primary desalined seawater. With application of the seawater coral aggregate concrete, the shortcomings that ordinary cement and low-strength coral concrete easily generate long-term strength back shrinkage, skin cracking and peeling of surface salt marsh, frequently happening shrinkage cracks and temperature cracks and poor new mixing workability and thus cannot be pumped for construction on service in a tropical offshore reef harsh environment can be overcome; the ratio of used local materials reaches up to 75% or more, so the shortcomings of high cost, time consuming, labor consuming, high energy consumption and low efficiency due to long-distance sea transportation of ordinary concrete large-amount raw materials in offshore reef construction projects can be overcome.

The invention provides a salt-resistance Bacillusmethylotrophicus strain LJ and an application thereof. The salt-resistance Bacillusmethylotrophicus strain LJ is classified to be named as Bacillusmethylotrophicus, and the collection number of the salt-resistance Bacillusmethylotrophicus strain LJ is CGMCCNO.7570. By performing salt tolerance analysis on the salt-resistance Bacillusmethylotrophicus strain LJ, performing a pathogenicity test on crops, and performing a test on the inhibition effect of the strain on pathogenic bacteria, results show that the salt tolerance degree of the strain is 25-30%; the strain can not cause pathogenicity to the crops, has relatively ideal inhibition effects on bacterial diseases, viral diseases and fungous diseases of tobaccos, can be compounded with a great number of elements, is long in retention period and high in effective bacterium survival rate, can be applied to saline-alkali soils, and has the effects of improving the soil, resisting the diseases, increasing the yield and the like. The salt-resistance Bacillusmethylotrophicus strain LJ disclosed by the invention ensures that a microbial preparation has the positive effects of preventing the diseases and promoting the growth of plants in special environments; the microbial inoculum has the effects of salt-resistant growth-promoting bacteria and disease-prevention growth-promoting bacteria, and is suitable for improvement of salt marsh, alkali soil and acid soil.

The invention provides a method for water seepage, salt discharge and afforestation of a low-humidity saline and alkaline beach. The method comprises the following steps of: (1) performing landscape micro-terrain modeling finishing on a saline and alkaline land parcel to be governed to form orographic uplift afforestation areas and low-lying water catchment and salt discharge areas, and excavating drainage ditches in a direction from high to low; (2) turning over the earth surface; (3) excavating flexible water seepage and salt discharge tape burying ditches; (4) arranging flexible water seepage and salt discharge tapes at the bottoms of the ditches; (5) forming intersected water barrier ridges; (6) adding an organic fertilizer, and plowing and harrowing a surface layer; (7) arranging integrated flexible salt discharge and air permeation shafts; and (8) cultivating and sowing saline-alkali-resistant arbor-shrub-grass plants on saline and alkaline land which is comprehensively governed and improved. A set of feasible comprehensive technical method is provided for the comprehensive governance and afforestation of saline and alkaline land in large areas; and the method is favorable for improving the afforestation effect and level of saline and alkaline areas.

The invention belongs to the technical field of water pollution control and ecological remediation, and discloses a method for transforming a saline-alkali wasteland into a low-pollution water-wet land deep treatment system. The existing saline-alkali wasteland on the periphery of a lakeside zone is utilized through adaptation to local conditions, and is transformed into the compound system of a surface flow enhanced constructed wetland and a surface flow semi-natural wetland. According to the purifying system, (1) determination of a purifying area and function zoning, (2) a water inlet system, (3) terrain and base transformation, (4) hydrodynamic optimization, (5) vegetation configuration and restoration and (6) ancillary facilities and management are included. Industrial tail water with pollution loads such as suspended solids (SS), salt, BOD5, CODcr, TN and TP and low-concentration farmland drained water are introduced into the compound wetland purifying system for enhanced purification and deep purification, the purified water is drained into a lake through a shoreline wetland, and the ecological environment of the shoreline saline-alkali wetland is repaired while the water entering the lake is improved. The method is a low-pollution water treatment method which is small in investment and takes effect soon.

The invention relates to the field of plant stress resistance and in particular to maize salt stress response miRNA MiR164 and application thereof. The nucleotide sequence of the gene is as shown in SEQ ID No.1. According to the maize salt stress response miRNA, under salt stress, expression of zma-miR164 is reduced, target genes GRMZM2G114850 (NAC transcription factor family proteins, NAM, ATAF and CUC) and GRMZM2G008819 both have remarkable expression increase, and the NAC transcription factor responds to salt marsh stress by regulating and controlling expression modes of downstream genes.

The invention relates to the technical field of soil fertilizers, in particular to special microbial fertilizer for seaside solonchak, and a preparation method and an application of the microbial fertilizer. The microbial fertilizer comprises the following components in percentage by weight: 35-45% of sludge, 20-25% of cow dung, 10-15% of fowl manure, 15-25% of edible fungi cultivation wastes, 8-12% of arbuscular mycorrhiza funguses, 10-15% of salt marsh apophysis mold and 0.05-0.15% of pyroligneous liquor. The microbial fertilizer has the effects of prompting formation of seaside heavy solonchak soil aggregation, reducing the pH value and the salt content of the soil, improving the soil fertility, and prompting crops to absorb a great amount of essential elements and microelements, such as nitrogen, phosphorus and potassium, and the purposes of prompting the crops to grow and increasing the yield are achieved.

The invention provides a degradable seedling raising holed tray.The degradable seedling raising holed tray is prepared from deinked pulp, plant fiber and an adhesive, wherein the mass ratio of the deinked pulp to the plant fiber to the adhesive is 60-80 to 20-40 to 0-2, and the plant fiber is selected from one or more of straw, bamboo reeds, reeds and wheat straw.The invention further provides a preparation method of the degradable seedling raising holed tray.Firstly, plant fiber raw materials are dried and then are smashed to reach 40-70 mesh; the deinked pulp, the plant fiber and the adhesive are mixed according to the mass ratio, are evenly stirred and are charged into a mold, pressing, molding and mold release are performed, and then drying is performed to reach 10-20% of water content, namely the finished product degradable seedling raising holed tray is obtained.The degradable seedling raising holed tray has a certain saline-alkaline resisting and decomposing role, is isolated from the outside at a seedling adapting stage and also has degradability, root systems can grow to penetrate through the holed tray after seedlings adapt to a salt marsh environment, and finally complete degradation is achieved.The degradable seedling raising holed tray improves the survival rate of transplanted tissue cultured seedlings and reduces the transplanting cost.

The invention discloses a rapid treatment method for a coastal salt marsh. The treatment method comprises the steps of dredging, punching, desalting and improvement. The rapid treatment method has the advantages that the material structure of soil is changed through the dredging, punching and desalting steps to provide basic conditions for dewatering and desalting in the soil; through the improvement step, organic matter and nutrients are supplemented to the soil, the PH index is reduced, good water, fertilizer, air and heat conditions are provided for plant growth, overall investment cost is low, effectiveness is shown fast, operation is convenient, the soil properties of the coastal salt marsh are effectively improved, the requirement for green and sustainable development is met, and good economic and social benefits are obtained.

The invention provides a Yangtze estuary salt marsh wetland macrobenthos habitat simulation prediction method. The method comprises: S1, performing sampling to obtain a sampling sample, and obtainingsampling data; S2, performing zero-value data processing, and obtaining first preprocessing data; S3, obtaining and preprocessing remote sensing data and auxiliary data, and obtaining second preprocessed data; S4, obtaining a training data set and a verification data set; S5, establishing a neural network space model, and training the neural network space model to obtain a trained model; S6, verifying the fitting goodness of the trained model; and S7, screening the trained model to obtain an optimal model, and obtaining a benthic animal prediction habitat map by using the optimal model. According to the Yangtze estuary salt marsh wetland macrobenthos habitat simulation prediction method, a remote sensing means is used, a neural network space model is integrated, the problems of limited benthic organism data and nonlinear environment data of traditional simulation are solved, and the accuracy of macrobenthos community distribution simulation is improved.

A method and apparatus for creating moderately quiescent water in which transplanted emergent salt marsh wetlands grasses can endure and eventually establish without the need for eliminating the energy of occurring waves.

A method and apparatus for creating moderately quiescent water in which emergent salt marsh wetlands grasses can endure and eventually establish without the need for eliminating the energy of occurring waves.

The invention discloses an ecological restoration method for the natural community of scirpus mariqueter in the intertidal zone. According to the method, the scirpus mariqueter community is restored quickly and at low cost in the intertidal zone through the collection and pretreatment of scirpus mariqueter seeds and accurate selection of the opportunity window suitable for habitat and time and bythe jute bag-assisted seed sowing method. The problem that strong hydrological dynamics of the intertidal zone affect seeding and survival of the scirpus mariqueter seeds and the traditional scirpus mariqueter transplantation is difficult and has high cost is solved. By combining the simple, effective, easy-to-operate and low-cost ecological restoration method for the natural community of scirpusmariqueter in the intertidal zone, large-scale restoration and reconstruction of the natural community of scirpus mariqueter in the intertidal zone of the Yangtze River estuary and the Hangzhou Bay can be realized, and the restoration of the structure and function of a salt marsh ecosystem is achieved.

A method and apparatus for creating moderately quiescent water in which salt marsh wetland grasses can endure and eventually establish without the need for the total elimination of the energy of occurring waves or the restriction of sediment passage

The invention relates to a fluid seed formula for vegetable restoration of a high tidal flat salt marsh of a coastal wetland, a fluid seed and a production process thereof. Specifically, the fluid seed formula provided by the invention comprises a water retaining agent, an auxiliary binder and a nutrition accelerant. The water retaining agent selects hydroxyethyl cellulose which plays roles in accumulating and storing water. The auxiliary binder is composed of coastal clay, attapulgite clay and hydroxyethyl cellulose and is bound with surface soil to resist to the disturbance of tidal water power. The nutrition accelerant comprises biomass particles, chitosan oligosaccharide, polyaspartic acid, tea saponin, indoleacetic acid, humus, fermented faeces and oyster shell powder and play a rolein regulating nutrients and growth. The invention provides the fluid seed by which the problem that a seed flow is nonuniform in dispersion and incapable of realizing effective field planting on a high tidal flat of the coastal wetland is solved, and the emergence rate of seeds is increased. In addition, the invention further provides the production process of the fluid seed, and the production process is simple, relatively low in cost and suitable for large-scale production.

The invention discloses a construction method of an ecological seawall. The construction method comprises the following steps of 1) construction of an artificial coral reef layer, 2) construction of afirst transition layer, 3) construction of a salt marsh layer, 4) construction of a second transition layer, 5) construction of a mangrove planting layer, and 6) construction of a slope protection surface. According to the construction method of the ecological seawall, the stability and reliability of the ecological seawall can be improved, the habitat environment can be provided for aquatic animals, the diversity of ecological seawall organisms is improved, and direct scouring of seawater to the seawall is greatly reduced through first-level blocking of the seawater.

The invention discloses a method for implementing rice-fish integrated culture on coastal mudflats in Jiangsu. The method comprises 1) field engineering construction, 2) rice planting and management,3) stocking and culture management of local crucian carp and Pacific white shrimp, 4) rice harvesting and 5) commercial fish and shrimp fishing. The method for implementing rice-fish integrated culture on the coastal mudflats in Jiangsu makes full use of upper and lower space and production efficiency of water in fish ditches, and meanwhile, produced aquatic products, rice and rice straw can accelerate reduction of salt content of saline-alkali mudflats, so that positive ecological, economic and social effects on promoting resource utilization of the coastal mudflats, increasing income for peasants, enhancing agricultural efficiency and the like can be achieved.

The invention provides a process for improving heavily salinized soil in a saline-alkali wasteland by using a capillary pervious drain belt. The capillary pervious drain belt is designed on a soft thin plastic sheet which is 200mm in width and 2mm in thickness; capillary pores which are 1mm in diameter are formed every 1.5mm; a ditch which is 0.3mm in width is longitudinally formed in each capillary pore by cutting; the surface of each water absorbing ditch is downwards when the ditch is embedded. The process disclosed by the invention realizes scientific water control management and effectively makes the soil be breathable; moreover, the capillary pervious drain belt is directly laid in the soil, and a well needs not to be checked, so the cost is low, convenience is provided for maintenance, a self-cleaning function is provided, the building cost of projects is lowered, and lots of sand resources are saved.

The invention relates to a method for obtaining concentrated brine of minimum impurity content from brine found in natural salt flats and salt marshes, said method having minimum environmental impactand maximum lithium recovery. The method is characterised in that it comprises the steps of: a) constructing ponds for fractional crystallisation based on solar evaporation; b) filling the ponds withnatural brine; c) initially pre-concentrating the natural brine until the maximum possible lithium concentration in the liquid phase is obtained, without lithium-containing salts being precipitated; d) cooling the pre-concentrated brine obtained in step (c), ensuring the maximum precipitation of salts containing sulphate anion; e) chemically pre-treating the liquid phase of the brine separated from the salts precipitated by means of cooling in order to minimise sulphate anions in the liquid phase after cooling; f) finally pre-concentrating the pre-treated liquid phase until the maximum possible lithium concentration in the liquid phase is obtained, without lithium-containing salts being precipitated; g) chemically treating the liquid phase of the brine separated from the salts precipitatedin step (f) in order to minimise the concentration of magnesium, calcium, boron and sulphate in the liquid phase; and h) concentrating the liquid phase obtained in step (g).

The invention relates to a cultivation method of a reed rootstock budding with an optimal water and salt threshold value, and aims at solving the problems that relevant data of rootstock budding cannot be intuitively reflected by environmental factors, a water and salt range suitable for planting reeds cannot be provided for recovery and reconstruction of field degenerative salt marshes in the prior rootstock propagation method. The method comprises the steps of firstly, field reed rootstocks collecting; secondly, reed rootstocks processing; thirdly, cultivation and rootstock budding process detecting. The method is used for the cultivation of the reed rootstocks. The method is convenient to operate, cost-saving, suitable for providing seedlings for the recovery of inland and seaside reedswamps, and of important practical significance and application value.

The invention relates to the salt marsh greenhouse gas emission research technology field and especially relates to an evaluation device and an evaluation method for a tidal influence on volatile halogenated hydrocarbon release in a salt marsh. The device comprises a cylinder, a seawater control device, a gas collection and detection device, an air exhausting device, a remote control end and a control system, wherein the cylinder is placed in a wetland soil column where vegetation is grown; the seawater control device is connected to the cylinder and is used for injecting seawater into the cylinder; the gas collection and detection device is connected to the cylinder and is used for collecting and detecting a gas generated in the cylinder; the air exhausting device is used for controllingcirculation and isolation of the gas in the cylinder and the outside world; the remote control end is used for carrying out remote control; and the control system is wirelessly or wiredly connected tothe remote control end. The control system comprises a controller. By using the device and the evaluation method of the invention, through simulating a tidal effect of seawater on salt marsh ecosystem waterflooding time and a waterflooding depth, a generated greenhouse gas emission flux can be conveniently, automatically and quickly detected. And then, a relationship between the tidal effect andsalt marsh greenhouse gas emission in an actual environment is acquired.

The invention relates to a method for ecologically breeding III-stage juvenile crabs into a 1-age crab variety through salt marsh wetland. The method aims at breeding the 1-age crab variety through the salt marsh wetland, and the problem about self-supply oflarge-scale commercial rivercrabs of the 1-age crab variety is solved. The method includes the steps of 1, selection of a breeding pond; 2, establishment of a fresh water source security system; 3, creation of a suitable habitat; 4, culturingof natural bait; 5, reasonable stocking; 6, scientific management.