90 results about "Intertidal area" patented technology

The invention relates to a pile sinking method for driving a large-diameter steel pipe pile in an intertidal zone. The method is characterized in that: a ship special for large-diameter steel pipe pile transportation and auxiliary pile hoisting construction is matched with a full rotary hoisting ship to realize the large-diameter steel pipe pile sinking operation as the following steps of: machining the steel pipe pile and hoisting the steel pipe pile to the special ship; positioning the hoisting ship; arranging a tilt sensor at the top of the steel pipe pile; vertically hoisting the steel pipe pile; automatically sinking the vertical steel pipe pile into the mud; hoisting a steel wire rope to automatically throw off a hook; recording the vertical reading of the steel pipe pile; and hammering the sunken pile by using a hydraulic hammer. The method has the advantages that: the ship special for large-diameter steel pipe pile transportation and auxiliary pile hoisting construction is matched with the full rotary hoisting ship to realize the large-diameter steel pipe pile sinking operation, so that the steel pipe pile of 300 to 600 tons can be easily hoisted and turned over in the air, the requirement for the maximum hoisting weight of the hoisting ship is reduced, hoisting safety and convenience are ensured and the engineering cost is greatly saved.

The invention discloses to a multi-functional assembling type waterborne movable device and relates to the structure construction equipment in water or intertidal zone. The waterborne movable device comprises a platform which is spliced by a plurality of assembled unit boxes (1) and has the same function of a hull, wherein a plurality of movable leg boxes (2) for supporting are arranged around the platform, the upper part of the movable leg boxes (2) is provided with a lifting device (3) used for controlling the platform to move up or down, and the upper surface of the platform is provided with a guiding system (4), a hoisting device, a power distribution device and an outfitting device. The multi-functional assembling type waterborne movable device of the invention is characterized in that the platform has the same function of the hull and can be fast spliced, the turnover is quick, the operation is convenient, and the platform is economical and practical, thus solving the defects that the fixed platform of a modern foundation in water has large investment, long construction period and poor economic performance.

The invention discloses an intertidal zone simple ocean platform and a construction method thereof. The intertidal zone simple ocean platform comprises a lower pile-barrel combination foundation and an upper platform block. The lower pile-barrel combination foundation comprises four barrel-shaped foundation bodies, the four barrel-shaped foundation bodies are opposite in pairs and distributed at intervals, every two of the four barrel-shaped foundation bodies are connected with each other to form a whole, the upper portion of the outer wall of each barrel-shaped foundation body is provided with a sleeve, and the top of each barrel-shaped foundation body is provided with a positioning pillar and a water feeding / discharging valve; the upper platform block is formed by welding four stand columns to an upper-end platform plate of the upper platform block, and the lower portions of the outer walls of the four stand columns are provided with sleeving pipes matched with the positioning pillars; and when the lower pile-barrel combination foundation and the upper platform block are assembled, the four sleeving pipes of the upper platform block sleeve and fix the four positioning pillars of the lower barrel-shaped foundation bodies. The intertidal zone simple ocean platform is large in foundation rigidity, the perpendicularity of the barrel-shaped foundation bodies automatically meet requirements, the weight of each independent component is small, construction is easy and convenient, the barrel-shaped foundation bodies penetrate into a seabed with the help of the seawater weight, and the intertidal zone simple ocean platform has economy and practicability.

The invention discloses perpendicularity control process for a single-tubular-pile foundation of an offshore intertidal wind farm. The perpendicularity control process includes steps of controlling manufacture of a single-tubular-pile steel structure; controlling pile sinking; and adjusting the perpendicularity of a foundation pile according to actually measured inclination data of a flange on the top of the pile. The perpendicularity control process for the single-tubular-pile steel structure, without a transitional section, of the foundation of the offshore intertidal wind farm, the problem that the perpendicularity is higher than 2.75% during construction of a foundation of a wind farm in an intertidal zone by the aid of conventional process, construction of the single-tubular-pile steel structure without the transitional section becomes a feasible scheme in China, and offshore construction efficiency is greatly improved.

The invention belongs to the technical field of plant planting and discloses a method for planting suaeda salsa in a coastal beach and an application. The method comprises the steps of 1, planting area selection, selecting an area suitable for planting from a mid-tide area and a high-tide area of an intertidal zone and building a wave blocking zone; 2, seeding, namely selecting temperature, seeding rate and seeding time; and 3, management after seeding, namely carrying out net covering, diversion and drainage for preventing flooding. The step 1 specifically comprises the content of selecting the area suitable for planting from the mid-tide area and the high-tide area of the intertidal zone; building the water blocking zone in a tidewater entering direction and building a dam in an offshoredirection in the planting area; or planting phragmites australis, high-stalk straws and phyllostachys pubescens in the tidewater entering direction in the planting area. According to the method, thesuaeda salsa is planted in a suitable environment on the beach, so that the growth area of the suaeda salsa is increased, the growth environment of the suaeda salsa on the beach is repaired and a support is provided for the stabilization of the biological diversity on the beach.

The invention discloses a method for arranging wind power generation equipment in the shallow water of an intertidal zone, which aims to solve the problems of equipment arrangement by adopting a construction method skillfully combining tracked carriers, crawler cranes, a crane ship, a barge and the like. The method is characterized by comprising the following steps that: the crane ship carries anauxiliary crane, and automatically voyages to a position with the smallest draught; the barge transports equipment comprising fan parts, the tracked carriers, platform blocks, approach bridges, a main crawler crane, an auxiliary crawler crane and the like to the position with the smallest draught; the tracked carriers transport the fan parts, the platform blocks, the approach bridges and the maincrawler crane part to a fan mounting station; the auxiliary crawler crane finishes the assembly of a construction platform at the fan mounting station and the complete main crawler crane; the main crawler crane and the auxiliary crawler crane finish the assembly and hoisting of the fan parts; and after the steps are finished, the auxiliary crawler crane disassembles the main crawler crane and theconstruction platform to a transportable weight, and the tracked carriers transport the main crawler crane and the construction platform to the next fan mounting station.

The invention discloses an obtaining method and application of microbial flora for fermenting enteromorpha to prepare marsh gas. According to the obtaining method, the enteromorpha is used as a matrix; silt and seawater collected on an intertidal zone are utilized; the microbial flora is obtained through continuous fermentation and domestication. The flora obtained by the obtaining method can maintain favorable activity and a higher gas yield in the sweater of which the salinity is 1 percent to 2 percent, and degrades the enteromorpha in a system of which the salinity is 3.5 percent or below to generate the marsh gas; in the condition that an enteromorpha initial material is not washed by using fresh water, the high-efficiency degradation on the enteromorpha can be realized; the purpose of saving a water resource and a time are achieved; biological fuel gas can be prepared while the harm caused to an offshore oceanic environment by the enteromorpha is deceased; the obtaining method has favorable economic benefit and environmental benefit.

The invention relates to an intertidal zone benthonic animal layered sampler. The intertidal zone benthonic animal layered sampler comprises a handle part and a box part of which the upper part and the lower part are opened. The handle part is T-shaped, and is connected with the box part through a locking button. Three faces of the box part are fixing vertical plates, and one face is a moveable vertical plate which can be upwards pulled out and in which a separating hole is reserved. A separating plate is inserted into the box from the separating hole. The intertidal zone benthonic animal layered sampler uses a split-type structure, and is convenient for transportation, storage and use. The T-shaped handle is used for sampling by using a hand to downwards press or sampling by using a rubber hammer to knock, the operation is simple and convenient, labor-saving, and suitable for multiple types of mud flat, such as muddy, sandy and mixed muddy and sandy. A box-type structure is used, so asampling depth is precision, and an area is accurate. The separating hole is reserved in the moveable vertical plate of the box part, and the separating plate is used for separating samples hierarchically, and a mud layer sequence is maintained, so the distribution hierarchy of benthonic animals in a mu sample is conveniently analyzed. The moveable vertical plate is used for, according to the sampling requirements, manufacturing the moveable vertical plate reserved with the different depths of the separating holes, and satisfying the different sampling hierarchical requirements.

A method for predicting the future intertidal zone area development trend based on an intertidal zone area change model comprises the following steps: S1, determining the growth rate, death rate and decomposition rate annual change trend of plants according to the growth phenological period characteristics and biomass data of a single vegetation, and constructing a plant growth model; s2, obtaining an intra-regional tide change equation according to the water level height and period of the tide and the time data of the big tide and the small tide, and constructing a tide model; s3, constructing a kinetic model system according to the multi-year area data of different zones of the region and the deposition and erosion effects, and constructing a deposition model; and S4, coupling the tide model, the plant growth model and the deposition model according to the influence effect of tide on the intertidal zone and the effect of single-year vegetation growth on the intertidal zone to form acompleted intertidal zone area change model, and performing simulation and prediction on different areas of the intertidal zone.

The invention discloses a preparation method of an intertidal zone ecological oyster reef system. The preparation method comprises construction, cultivation and putting of oyster reef bodies. According to the preparation method, the oyster reef configuration is selected to be of a honeycomb structure, the honeycomb structure has the highest adaptation, strong extrusion resistance and maximum available space, and materials are saved; and meanwhile, the honeycomb structure can trap other small benthic animals and microorganisms to create a biological habitat. By means of the method, the multiple purposes of remarkably increasing the survival rate and biomass of oysters, improving the biodiversity of offshore intertidal zones and purifying the water environment of offshore sea areas can be achieved. Meanwhile, based on the tidal characteristics of the intertidal zones, the reef bodies can achieve circulating updating of a water body, and free flowing and exchanging of water flow are achieved. The method can provide a solution for regions where the ecological environment of the intertidal zones is shrunk, degraded and destroyed.

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.

The invention discloses a large algae bloom prevention and control method based on reduction in the overwintering germplasm bank of green tide algae. The method is mainly based on the life history characteristics of green tide algae in the Bohai sea area of China. According to the method, chlorine dioxide (with a concentration of not lower than 100 mg / L) or sodium hypochlorite (with a concentration of not lower than 2%) is used as an environment-friendly algicide during an ebb tide of an astronomical tide in a transition stage (from late February to early April) of succession from winter seaweed communities to spring seaweed communities, and applied to removal operation of green tide algae in an intertidal zone; and by reducing the overwintering germplasm bank of the green tide algae, theamplification speed of spring green tide algae communities is inhibited and the number of fallen green tide algae is reduced, so early prevention and control of large algae blooms are realized.

The invention discloses a monitoring device for local erosion and deposition deformation of a tidal flat bed in an intertidal zone, which belongs to the technical field of micro-landform evolution monitoring. The device is scientific and reasonable, is safe and convenient to use, and comprises a monitoring assembly, a diversion assembly and a wireless signal transmission assembly. The monitoring assembly comprises at least one monitoring box, and a camera is installed in each monitoring box through a lifting shaft. A base internally provided with a storage battery is fixed to the lower portion of each monitoring box, and one side of each base is movably connected with a supporting rod for preventing the corresponding monitoring box from sinking. The monitoring box is fixed in the beach body through the base and the supporting rod, the camera lens is flush with the beach face through the lifting shaft, bed surface erosion and deposition deformation measurement in the extremely shallow water period of the tidal beach in the intertidal zone is achieved, and the problem that a traditional instrument cannot measure bed surface deformation under the extremely shallow water depth condition is solved. Scale marks for quantifying bed surface deformation are arranged on the monitoring box, so that the bed surface deformation process can be quantitatively acquired, and the bed surface deformation in the extremely shallow water period is digitalized.

The invention discloses an intelligent robot for analyzing and sampling intertidal sediments, which comprises a crawler chassis, an observation module, a communication and positioning module, a data acquisition control module, a power supply module, an analysis module, a sampling module and the like which are fixed on an equipment bearing area in the middle of the crawler chassis, and can safely run on complex matrix terrains in intertidal zones. The observation module collects images in the advancing direction, the sampling module is used for sampling, the analysis module can obtain environment parameters, and the communication and positioning module achieves communication between the robot and a shore operation terminal. The intelligent robot can move according to a set route, can also be commanded in a remote control mode, is suitable for advancing of intertidal zone topography and salinity, can automatically collect sediment samples and automatically analyze key parameters in situ, has the functions of sending back data and images in real time and the like, meets the requirements for automatic fixed-point analysis and sampling of the intertidal zone, can greatly save manpower and other cost, personnel safety is guaranteed, and sampling analysis tasks are efficiently completed.

The invention discloses an intertidal zone corrosion detection device for an offshore wind turbine tower tube. Herein, encircling measurement is carried out through a combined floating element, so that the detection device adapts tower drums with different diameters and is convenient to disassemble and assemble; the device is characterized by comprising a baffle table, a floating element and a positioning rod, wherein the floating elements are connected end to end through bolts to form a semi-floating ring; the two semi-floating rings are connected through two telescopic positioning rods to form a whole floating ring; the baffle table is located above the whole floating ring. The positioning rod is connected with the baffle table; a floating block is arranged on the positioning rod; the tower crane intertidal zone monitoring device is simple in structure, convenient to assemble and disassemble, convenient for personnel to assemble, maintain and disassemble, and capable of performing camera monitoring on a tower crane intertidal zone along with tide fall, finding tower crane corrosion traces in time, performing maintenance treatment early, and ensuring the service life and equipmentsafety of the tower drum.

The invention relates to a production technology of high-end oysters, in particular to a method for improving oyster shell quality. The method comprises the steps of oyster juvenile mollusk subtidal zone primary cultivation, adult mollusk single body operation, shell quality improvement and the like. According to the bioecology principle of the oysters, the shell quality of the oysters is improvedby utilizing the ocean power and phenotypic characteristics of the oysters in the intertidal zone and the subtidal zone. The oyster shells are round and smooth, the shell shape is attractive, the content of attached organisms and silt is low, and cleaning is easy; and oyster products produced by the method also have the advantages of low breakage rate, long-time transportation resistance and highfood safety. In conclusion, the method can provide important technical support for creating international high-end brands for the oysters in China.

The invention discloses a satellite remote sensing quantitative evaluation method for an intertidal zone erosion and deposition condition caused by an offshore wind turbine, and the method comprises the steps that a high-precision DEM reflecting the detail features of the surface microtopography of an intertidal zone is constructed through an improved remote sensing waterline method; an imaginarysand body surface discrimination method is further creatively provided, and the imaginary sand body beach face elevation under the draught-fan-free state at the draught fan point position of the intertidal zone is simulated; secondly, the elevation of the draught fan point position is extracted from the high-precision intertidal zone DEM, the elevation difference between the elevation of the draught fan point position and the elevation of an imaginary sand body beach face at the draught fan point position is calculated, the intertidal zone scouring and silting rate of the draught fan point position is quantitatively estimated, and the intertidal zone scouring and silting intensity grade caused by draught fan construction is evaluated. The method provides a feasible scheme for monitoring and evaluating the intertidal zone topographic change caused by intertidal zone wind power plant construction by using a satellite remote sensing technology, and also provides a technical support for analyzing the intertidal zone topographic change caused by an offshore small target object based on DEM data.

The invention relates to a CO2 flux measurement device used in intertidal wetland. The device comprises an infrared gas analyzer, a gas path and an erector, wherein the gas path is connected with the infrared gas analyzer, the erector is used for placing the infrared gas analyzer and the gas path, the gas path comprises a transparent water-touching cover and a wave protection pipe; a plurality of sharp angles are uniformly distributed on the lower edge of the water-touching cover; scales are arranged on the side wall of the water-touching cover; a level gauge is arranged on the water-touching cover; the other end of the wave protection pipe is connected with a carbon flux air chamber contact cover; the wave protection pipe is connected with a lifting rod at one side angle of the erector through a fixing ring; the erector comprises a table top and table legs; the table legs comprise fixed sections and stretching sections positioned inside the fixed sections; sharp ends are arranged at the front ends of the stretching sections; the fixed sections are connected with the stretching sections by virtue of a locking device. Based on mutual cooperation of the gas path and the erector as well as the infrared gas analyzer in the measuring device, the problem that the traditional CO2 flux measurement method for inland wetland is difficultly used for effectively measuring the intertidal wetland for a long time is solved, the high automation capability is realized, the operation is time-saving and labor-saving, and the aim of continuously measuring for a long time is achieved.

The invention provides an ecological assessment method for an intertidal artificial coastal wetland park. The method comprises the following steps: firstly, determining advantageous ecosystem servicetypes provided by an artificial coastal wetland park, including plant supply, water quality purification, carbon sequestration, climate regulation, wind resistance and wave dissipation, biodiversity maintenance, entertainment, scientific research and education, and dividing the advantageous ecosystem service types into supply, regulation, support and culture services; and then calculating the service value of each service type according to an evaluation formula, then summarizing the single values of eight advantageous ecological service sub-items to obtain the total value of the coastal wetland park, and finally comparing the evaluation result with other similar coastal wetland park service values to understand the coastal wetland artificial restoration achievement. Through intertidal artificial coastal wetland park advantageous ecosystem service value assessment, the restoration effect of the coastal wetland park can be visually understood, and meanwhile, the future development trendof the artificial coastal wetland park ecological service value can be predicted.

The invention provides an intertidal zone offshore floating photovoltaic system and a construction method thereof, and the system comprises a floating pipe support system which comprises a floating pipe support and a plurality of floating boxes, wherein the two ends of the floating pipe support are respectively fixedly provided with a group of mooring piers; an anchoring and mooring system which comprises an anchoring pile, a rope, a ballasting block and a fixed pulley, wherein the fixed pulley is fixed to the top of the anchoring pile, the ballasting block is fixed to one end of the rope, andthe other end of the rope bypasses the fixed pulley in a crossed manner and is fixed to a set of mooring piers close to the anchoring pile; a floating type mooring system which comprises mooring piles and floating type mooring piers, wherein the floating type mooring piers are nested in the mooring piles, and the floating type mooring piers are connected with the mooring piers through ropes; anda photovoltaic system which comprises a plurality of groups of folding photovoltaic panels, wherein the inclination angles of the folding photovoltaic panels can be automatically adjusted to face sunlight. According to the present invention, the problems of singleness of offshore wind power generation and insufficient resource development and utilization are solved, and the overall benefit of offshore power generation is improved.

The invention discloses an automatic identification method and device for coast erosion and sedimentation based on shoreline data, and belongs to the field of ocean monitoring. The method comprises the following steps: firstly, acquiring coastline vector data of two time phases, and respectively performing topology check on the coastline vector data to ensure that a coastline has two end points and does not coincide with each other; secondly, based on coastline vector data of two time phases, according to a specific spatial analysis method, automatically obtaining a gap region, automatically giving two attributes of sedimentation and erosion according to a certain rule, carrying out consistency check and precision evaluation, and finally obtaining the distribution range and area of sedimentation and erosion. The method and device can automatically extract erosion and sedimentation areas, reduce misjudgment, erroneous judgment and missed judgment caused by artificial interpretation, improve the detection speed, and quickly and accurately obtain the dynamic change of coastal zone intertidal zone information.

The invention discloses an intertidal zone blasting silt squeezing all-weather construction method. Two arc-shaped explosion lines are arranged and are detonated at the same time when tides rise, the height of a silt bag is pushed up to form a water storage depression, and after stone throwing and filling, single-line explosion lines are arranged; and when tides fall, the water level in a reservoir continues to be blasted, an underwater environment is provided, single-line explosion line blasting operation is implemented, and then stone throwing and filling are carried out. The cycle is repeated, and therefore all-weather underwater blasting is realized. According to the method, the rule of rising tides is utilized, the blasting construction efficiency is improved on the premise that the construction progress is not affected, and all-weather blasting silt squeezing construction is achieved.

The invention provides a single beam and towing water depth measurement data consistency check method. The invention provides a measurement device; the measurement device comprises a measurement car,a GNSS receiver, a single-beam depth finder energy converter and a towing measurement system encoder are arranged on the measurement car; the method comprises the following steps: firstly establishinga space rectangular coordinate system through a theodolite, and then computing phase centers of the sensor and a measurement car body by utilizing a space forward intersection measurement principle calibration sensor and a space coordinate of the measurement car body, and then converting the phase center coordinate of each sensor to the car body coordinate system of the measurement car, thereby realizing the single-beam and towing measurement data consistency check. And the problem that the intertidal zone at the connecting part of the ocean and the land cannot acquire the terrain informationis solved.

The invention discloses a coastal intertidal zone ecological restoration system and a construction method thereof, relates to the technical field of coastal ecological restoration, and aims to solve the technical problems that water and soil loss is serious due to erosion of stormy waves during fluctuation and ebb tide, planted seedlings cannot be planted due to serious erosion of plant planting surfaces, and the survival rate is greatly reduced in the prior art. According to the coastal intertidal zone ecological restoration system and the construction method thereof, geotechnical cloth for preventing water and soil loss is laid at the bottom of a planting area, geocells and timber piles are assembled in the intertidal zone green planting area during ebb tide, the geocells are backfilled with planting soil, and the outer side edges are built into retaining walls for retaining water and soil through ecological bags. A gravel layer which is resistant to moisture and water scouring and has the particle size of 3-5 cm is laid on the surface layer of the planting area, and mangrove plants and aquatic plants which are resistant to scouring and salt and alkali are planted in the greening planting area to jointly act to construct a storm-resistant planting system, so that the survival rate of nursery stocks is increased, and the aim of ecological restoration of the coastal coast is achieved.

The invention belongs to the technical field of environmental restoration, and discloses a method for replacing a spartina alterniflora community with a suaeda salsa community in an intertidal zone of mud flat. The method comprises the steps that a cofferdam dam is constructed; after enclosure is conducted and before the new seedlings of spartina alterniflora are unearthed, water is stored to water the land; the watering time generally starts from winter or early spring of the next year; water is drained at the end of the current year after the stored water waters the spartina alterniflora habitat for more than 6 months or in mid-to-late April of the next year to expose the earth surface, and the field is naturally aired until the soil surface has dry crack gaps; local suaeda salsa seeds are selected and sown after the tide and when no extra heavy rain exists within 4-6 days; a water storage dam at a water inlet and a water outlet of a frame enclosure area is transformed into an overflow dam, and the overflow dam is enabled to be as high as or lower than the ground surface in the frame enclosure area; the reed and the spartina alterniflora are removed in a manual removing or chemical weeding mode to purify the suaeda salsa community. According to the method, the coastal mud flat wetland habitat is recovered, and the regional biodiversity can be protected.

The invention discloses a test device for simulating tide and a use method thereof. The device is characterized in that a device main body comprises a water supply pool, a water level regulating pool,a subtidal zone simulation pool, an intertidal zone simulation pool, an overtidal zone simulation pool and a bidirectional water flow regulation control box. An electromagnetic flow control meter, aforward frequency conversion self-priming pump, a reverse frequency conversion self-priming pump and an intelligent time control three-way controller are arranged in the bidirectional water flow regulation control box. The method comprises the following steps: controlling the forward variable-frequency self-priming pump and the reverse variable-frequency self-priming pump to start and stop throughthe intelligent switch; adjusting the water flow through the electromagnetic flow control meter, so that the periodic change of the water level is realized, different tide types and coastal wetland types are simulated, the field research cost is greatly saved, the interference of field environmental factors and the risk of field operation are effectively eliminated, and the credibility and the working efficiency of tide simulation research are improved.

The invention discloses a mangrove forest afforestation method for intensively weathered tuff geology and intertidal zones with high elevations. The method comprises the steps of a, site preparation,b, planting soil backfilling, c, water channel excavation and d, mangrove plant planting. One year after afforestation is completed, various mangrove nursery stocks grow well, the survival rate of avicennia marina, kandelia candel and Bruguiera gymnorrhiza is not lower than 60%, the survival rate of Rhizophora stylosa and aegiceras corniculatum is not lower than 70%, and the height of the nurserystocks is increased by 10-30 cm. By means of the method, the area of the mangrove forest in coastal areas in southeast and south China can be enlarged, and the important functions of the mangrove forest in the aspects of food supply, germplasm resource preservation, species diversity maintenance, wind prevention, wave dissipation, marine environment purification, ecological balance maintenance, carbon sink maintenance and the like are better played; meanwhile, the created water channel and mangrove forest coexist, diversified habitats are provided, and biodiversity conservation and recovery are better facilitated.

The invention relates to an intertidal zone mangrove forest, salt marsh and seaweed bed vegetation-covered coastal wetland soil carbon reserve investigation method, which comprises the following steps of layering and weighing collected columnar soil samples when estimating the carbon reserve, then taking out a first sample and a second sample from the samples in each layer, obtaining the dry weight of a sample containing fine roots by using the first sample and measuring the organic carbon / inorganic carbon / total carbon content of soil without fine roots, obtaining the total mass of the fine roots of each layer by using the second sample, subtracting the total weight of the fine roots from the total dry weight of the sample of each layer to obtain the mass of the sample soil, and further calculating the reserve of the organic carbon / inorganic carbon / total carbon in the soil. According to the method, the influence of plant fine roots in soil carbon reserve investigation is eliminated, the problem of repeated calculation of fine root organic carbon reserves in soil carbon reserve investigation is effectively avoided, and a more accurate investigation method is provided for research of coastal wetland carbon reserves.

The invention relates to a control method of advanced invasive plants in the ecological remediation field of seaweed beds in intertidal zones, and specifically relates to a control method of invasiveplants, namely Spartina alterniflora Loisel in the intertidal zones. A control device of the Spartina alterniflora Loisel is provided with PVC boards and U-shaped steel nails for fixation. After withered Spartina alterniflora Loisel residue in a region is manually removed in an early growth stage (from March to April) of the Spartina alterniflora Loisel in a temperate-zone sea area, a layer of thePVC boards is uniformly and flatly laid close to the surface of earth, and two adjacent PVC boards are fixedly linked together through the U-shaped steel nails. The PVC boards are lightproof and arecapable of effectively preventing growth and propagation of the Spartina alterniflora Loisel. By utilizing the control method, the invasive plants can be effectively controlled; by combining with thesimple, convenient and effective control device of the Spartina alterniflora Loisel, the seaweed beds in the intertidal zones can be conveniently and rapidly remediated or reconstructed; and meanwhile, the PVC boards are capable of durably resisting stormy waves for two or more years and can be repeatedly used after recycling, so that the cost can be saved, the control method is economic and environment-friendly, and sea areas are not polluted.