53 results about "Salt marsh" patented technology

The invention is concerned with complex improvement method for farm soil and vegetation to salina. It carries the improvement about the soil with 0.4 m thickness, relating to cutting piece, digging main pouring blind drain and branch pouring blind drain channel, making small square farmland filled with clear arsenolite, backfill soil and return to even, beat sand hole, making fall of slope, wash salt and eject salt, fertilization and tillage deeply. The improvement soil is fit for all kinds of crop, greensward and perennial flowers, and forms the soil for foodstuff crop, plant with shallow root and flowers. Its investment is low and the amount of a unit of area is at least 5000, and the improvement fee reduces greatly and it adds the plant area of farm and enhances the output of foodstuff and vegetable. It protects the soil resource to add the area of foodstuff planting, and it is an economic, extensive, simple and indirect technology for agricultural salina.

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 method for planting cyperus malaccensis in a tidal wetland. The method mainly comprises the key links of the selection of a planting mud flat, a planting season, planting time, seedlings, provenance and the specification of ball-plants, planting, the application of growth hormone, basal dressing, topdressing, nursing and the like. According to the method for planting a salt marsh plant (cyperus malaccensis) in the tidal wetland, survival rate and growing speed of the cyperus malaccensis transplanted in the tidal wetland can be obviously increased, effective recovery and sustainable development of a coastal wetlands ecosystem are improved, and a certain yield can also be obtained from economic utilization of the cyperus malaccensis.

The invention discloses an estuary wetland vegetation habitat restoration method which comprises the following steps: firstly, calculating tidal flat fluctuation tidal power and topographic evolutionprocess by utilizing a hydrodynamic model and a sediment transport model, and designing the length, width, depth, shape and the like in a targeted manner by scientifically designing tidal flat and tidal creek characteristics, so that the functional communication of the tidal flat is enhanced, and tidal water is reasonably guided to enter and exit the suaeda salsa vegetation area; secondly, throughthe constructed tidal flat hydrological communication ecological effect model, reducing erosion of tidal ditches and sediment deposition of vegetation areas, adjusting the internal water flow condition, realizing the effective field planting effect on vegetation seeds, prolonging the wetland water retention time, obtaining the optimal suaeda salsa vegetation suitable habitat, and promoting fieldplanting and natural growth of salt marsh plant seeds; and finally, changing vegetation growth habitat conditions including salt, moisture and nutrition by flooding frequency, tidal creek form, topographic and geomorphic characteristics and the like on the tidal flat, so as to influence the growth of suaeda salsa vegetation communities.

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.

The invention discloses a water-saving salt marsh physic-chemical-ecological integrated modification and vegetation construction technique. The invention firstly digs a dripping slot at the ground needed reconstructed, and lays the material which is anti-corrosion and permeable in said dripping slot and lays a certain depth of stones above this; covers the stones with the material which is anti-corrosion and permeable to construct the dripping blind slot; backfills the soil excavated from said dripping slot; fills the acid organic manure above said backfilled soil surface; processes deep tillage on the manure soil to laid acid organic manure; and constructs the salt-extract permeable channel. The invention also has an automatically precipitation system. The invention has the advantages that: it avoids dig slot, remove soil, lays dripping layer, lays blind pipe, changes planting soil, which can confirm the normal growth of nursery-grown plant and avoid the destroy on the infield.

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.

The invention discloses a coastal multiple habitat simulation test field. The test field is characterized in that the test field is provided with a posterior coastal zone test area and a coastal saltmarsh wetland test area, wherein an intertidal zone test area is arranged in the posterior coastal zone test area, the intertidal zone test area is arranged at one side, close to the coastal salt marsh wetland test area, of the posterior coastal zone test area, the intertidal zone test area is equipped with two water outlet pipes towards the coastal salt marsh wetland test zone, and the two wateroutlet pipes are respectively arranged parallel to the bottoms of the test areas. The multiple habitat simulation test field designed in this way aims at realizing that a test field simulates a plurality of different coastal habitats at the same time, has obvious advantages such as simple structure, reusability and low cost, makes test results be not affected due to changes of the groundwater level and salinity, and be more accurate, ensures that saline groundwater is circulated in the test field, and does not affect the environment outside the field.

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 provides an undisturbed soil column sampler for salt marsh wetlands. The undisturbed soil column sampler comprises a storage tube, a lifting rod, a reciprocating plug, a rubber plug, a steel ring and a fixing device. The reciprocating plug is arranged inside the storage tube and is fixedly connected with the front end of the lifting rod, the rubber plug is arranged at an orifice in the upper end of the storage tube, a hole is formed in the middle of the rubber plug, the lifting rod can move in the hole in the up-down directions, and an air hole is further formed in the rubber plug; the fixing device is arranged above the rubber plug on the lifting rod; the steel ring is further arranged on the outer wall of the upper end of the storage tube, two half rings are fixed by the aid of screws to form the steel ring, and handles are symmetrically arranged on the outer side of the steel ring; a sampling opening is formed in the lower end of the storage tube, and an annular cutteror a sample cover is arranged at the sampling opening. The undisturbed soil column sampler has the advantages that samples can be taken out by the aid of vacuum states formed between the reciprocating plug and the samples, and the sampling depths and the sampling diameters of the undisturbed soil column sampler are larger than the sampling depths and the sampling diameters of existing samplers; sedimentary compaction in sampling procedures can be reduced, accordingly, the samples are good in authenticity and integrity and high in cleanliness, and the geology can be truly reflected.

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 discloses a method for accelerating cucumber growth and a special culture medium thereof. Not only macroelements and microelements necessary for plant growth but also putrescine used for regulating plant growth are added in the special culture medium used for accelerating cucumber growth. The method is to culture cucumber in the special culture medium used for accelerating cucumber growth under condition of salt stress, wherein concentration of the putrescine is 10-10mu m and 50mu m is preferred. The culture medium can accelerate cucumber growth in salt marsh, thereby improving resource utilization rate and guaranteeing vegetable production in salinization areas.

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 belongs to the technical field of greenhouse gas research of tidal salt marsh wetlands under the background of global warming, and particularly relates to a field warming test device suitable for a tidal salt marsh wetland. The field warming test device comprises an open-top box, a bottom support fixing member and fixing rods, wherein the bottom support fixing member is inserted intothe soil layer of the tidal salt marsh wetland, and the upper end of the bottom support fixing member is higher than the upper surface of the soil layer of the tidal salt marsh wetland; the open-topbox is arranged on the bottom support fixing member, and is connected to the bottom support fixing member through a plurality of fixing rods that are distributed in the circumferential direction. Thefixing rods are vertically arranged, hooks are arranged on the upper ends of the fixing rods, the hooks are hooked at the top of the open-top box, and the lower ends of the fixing rods are inserted into the soil layer of the tidal salt marsh wetland. The complete set of test device disclosed by the invention is low in cost, simple in structure and easy to assemble, and is suitable for field warming control experiments of the tidal salt marsh wetland.

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.