163 results about "Shallow water area" patented technology

The invention relates to a water depth estimation method of a KAN network based on self-adaption and physical constraint, and belongs to the technical field of remote sensing data processing. Grades are divided according to different water body turbidity, different KAN expert networks are adopted for different grades to learn the complex nonlinear relation between B3 and B4 wave band reflectivity and water depth, and KAN initial model parameters corresponding to different grades of water bodies are obtained through independent self-adaptive training; taking the B3 and B4 wave band reflectivity after normalization processing as input, selecting a corresponding KAN network model according to the water turbidity grade, and outputting predicted water depth; and training the KAN network by using the physical constraint loss function L, and finally extracting an interpretable mathematical inversion formula of the wave band reflectivity and the water depth after the training is completed. Through deep fusion of B3 / B4 waveband spectral characteristics of the KAN, a remote sensing technical solution with high precision, low cost and strong adaptation is provided for dynamic monitoring of the water depth of the shallow water area.

The invention is suitable for the technical field of multi-source data processing, and provides a water body adaptive extraction method based on multi-source remote sensing data fusion, and the method comprises the steps: obtaining multi-source data of a target region, constructing an improved water body index based on optical remote sensing image data, and enhancing the spectral separation degree of a deep water region and a shallow water region; constructing a scattering feature distinguishing rule set based on synthetic aperture radar image data, and separating a water body from typical interference ground features; generating a terrain gradient constraint condition based on the digital elevation model data; generating a fusion data set according to the improved water body index, the scattering feature distinguishing rule set and the terrain gradient constraint condition; dynamically segmenting the fused data set through an adaptive threshold segmentation algorithm to obtain an initial water body extraction result; and performing mixed pixel decomposition and morphological boundary optimization processing on the initial water body extraction result to generate an optimized result, and outputting a water body spatial distribution diagram, thereby effectively improving the water body extraction precision, the adaptability to complex scenes and the anti-interference capability.

To solve such a problem that cultivation of seaweeds that generate blue carbon is committed to a natural environment which is very limited to shallows where sunlight reaches (=0.2% of the entire sea), the cultivation region may decrease but cannot increase because of installation of a port, tourism development such as a swimming beach, and expansion of commercial facilities, sunlight sometimes cannot sufficiently reach the cultivation region because of weather conditions and the ebb and flow of the tide, which makes the cultivation insufficient, and furthermore, an outbreak of red tides may inhibit algae from growing.SOLUTION: In a blue carbon system, a sealed wooden box is installed to each of the four corners of a wooden frame of a 12 m-sized wooden artificial island unit; a culture soil unit for cultivating algae is placed on the wooden frame; buoyancy of the four sealed wooden boxes and weight of the culture soil unit are controlled to be well balanced; and upper sides of the four sealed wooden boxes are set to be exposed from the water by approximately 30 cm while taking the water depth into account so as to provide a best growth condition of the algae.SELECTED DRAWING: Figure 1

The utility model relates to an assembled floating body construction hoisting platform system for hydroelectric power generation, which is characterized in that a plurality of air bags are arranged, top beams are supported at the tops of the air bags, the top beams are connected through top beam connecting beams to form a frame structure of a platform frame, and arc-shaped structures used for being connected with the air bags are arranged at the bottoms of the top beams. The bottom of the top beam is provided with an arc-shaped structure used for being connected with an air bag, the end of the air bag is provided with an inflation device, wood beam supporting structures are evenly distributed on the top beam connecting beam, the wood beams are installed on the platform frame through the corresponding wood beam supporting structures, and the top beam, the top beam connecting beam and the wood beams are connected into a whole to form a wood plate bracket and a mortise fixing point. A plurality of adjustable stand columns are installed on the platform frame, hoisting equipment used for hoisting operation is arranged on the platform frame, and a cantilever crane or a portal crane of a single-column and single-arm structure can be adopted. The hoisting device can be well suitable for the overwater hoisting operation in shallow water areas, and can be used for hydroelectric power generation hoisting or other adaptive occasions.

The invention discloses a hydrofoil with an adjustable attack angle for an electric control type boat and a control system, relates to the technical field of attack angle control, is used for solving the hidden danger of grounding caused by insufficient underwater distance and limited lift force compensation during navigation in a shallow water area, and comprises a working condition judgment module, a backstepping fitting module, a risk grade judgment module and an attack angle execution module, the modules are in signal connection; the working condition judgment module obtains a water depth value, a draught value and a water leaving height value through a sensor, calculates a bottom gap and compares the bottom gap with a safe minimum gap, and judges shallow water working condition triggering; the backstepping fitting module calculates the actual lift force by combining the gravity, the buoyancy and the vertical acceleration of the boat body when the shallow water working condition is triggered, and fits the shallow water corrected lift force slope; the risk grade judgment module calculates the residual available lifting force and the lifting force required by lifting, and sets a risk flag bit through a dual-condition criterion; and the attack angle execution module adjusts the attack angle according to the risk flag bit to realize closed-loop control.

The invention discloses a wetland ecological restoration method combined with water ecological restoration monitoring, and relates to the technical field of ecological restoration. The method comprises the following steps: acquiring water depths, nitrogen and phosphorus concentrations, dissolved oxygen and biodiversity indexes of a deep water area, a shallow water area and a coastal zone of a wetland through a sensor network, and generating an initial data set; dividing a wetland region by adopting a K-means clustering algorithm, and constructing a classification region feature model; based on the nitrogen and phosphorus concentration and the water depth of each region, configuring plant species, simulating a water flow gallery and optimizing the pollutant removal efficiency; integrating coastal zone data, optimizing the external pollution interception efficiency by using a genetic algorithm, and obtaining an optimal matching parameter; generating a collaborative ecological restoration framework by iteratively adjusting plant parameters, and establishing a comprehensive numerical evaluation model; and a management data set is generated according to an evaluation result, and quantitative optimization of the wetland ecological restoration effect is realized. According to the method, the pollutant removal efficiency can be effectively improved, and collaborative recovery of ecological functions can be ensured.

The invention discloses a water resource information acquisition method based on a remote sensing image, which belongs to the technical field of image recognition, and specifically comprises the following steps: firstly, acquiring remote sensing image data of a target water area, and constructing a dynamic substrate spectrum template library by acquiring actually measured spectrum reflection curves of different substrate types in a water-free state; secondly, for each spatial position in the image, matching exposed substrate types of adjacent areas according to geographic coordinates, and extracting corresponding spectral features from a template library as basic reflection reference; establishing a light propagation path separation model, simulating a process that sunlight penetrates through a water layer and returns to a sensor through substrate reflection, and generating a substrate reflection contribution component in combination with basic reflection reference; and finally, deducting the contribution component from the spectral reflectivity to obtain a pure water optical response value, and outputting a water transparency parameter distribution diagram of each spatial position of the target water area according to a physical correlation model of the pure water optical response value and the water transparency. According to the invention, reliable remote sensing acquisition of shallow water transparency is realized.

This invention relates to a construction vessel for shallow water areas and its movement method. The construction vessel includes a hull, a construction structure, a first pile, a second pile, and a moving structure. The construction structure is mounted on the hull, and the first pile movably passes through the hull and inserts into the water. The moving structure includes a slider, a first driving member, and a strip groove on the hull. The slider slides into the strip groove, and the second pile movably passes through the slider and inserts into the water. The first driving member is connected to both the hull and the slider, and is used to drive the slider to move along the strip groove. Compared with the prior art, this invention enables the hull to move on water, solves the problem of difficult movement of construction vessels in shallow water areas, avoids the use of anchoring for positioning, and improves the movement efficiency and construction efficiency of construction vessels in shallow water areas.

A method and device for water column profile measurement have the following features: • the method uses a measuring arrangement with a flying drone (10), a submersible cable (20) and a measuring probe (30) for measuring physical quantities, such that one end of the submersible cable (20) is connected to the flying drone (10) and another end of the submersible cable (20) is connected to the measuring probe (30), with the steps: • Flight of the drone (10) with the immersion cable (20) and the measuring probe (30) from a base station to at least one marine measuring position, • At each of the at least one marine measurement position, the following steps are carried out: ▪ Lowering the drone (10) and the associated lowering of the measuring probe (30) into the sea while recording measurement data with the measuring probe (30), ▪ Ascent of the drone (10) and the concomitant submersion of the measuring probe (30) in the sea with optional recording of measurement data with the measuring probe (30), • Return flight of the drone (10) with the immersion cable (20) and the measuring probe (30) to the base station and placing the measuring probe (30) on the base station. The measuring probe, submersible cable, and drone are reusable. The ocean is not polluted with debris. Measurements can be taken in shallow waters.

The invention provides a parallel hydraulic interconnection damping catamaran which comprises an upper cabin, a hydraulic interconnection suspension and a floating body which are sequentially arranged from top to bottom, and the whole structure is symmetrically distributed in the front view and is trapezoidal in the left view. The hydraulic interconnection suspension forms two side waists of a trapezoid, the upper cabin body is connected with the transverse rocker arm through the hydraulic cylinder set, the front transverse rocker arm is hinged to the longitudinal rocker arm through the radial spherical plain bearing, the longitudinal rocker arm is hinged to the floating body through the radial spherical plain bearing, and the rear transverse rocker arm is directly connected with the floating body. The front hydraulic cylinder set and the rear hydraulic cylinder set stretch out and draw back to achieve pitching motion, the left hydraulic cylinder set and the right hydraulic cylinder set stretch out and draw back alternately to drive the floating bodies on the two sides to move in a staggered mode, heeling of the ship body is achieved, and therefore three-freedom-degree vibration reduction compensation of heaving, pitching and heeling is jointly completed. Through the eight-cylinder interconnected hydraulic loop design and the special connection pair layout, wave multi-degree-of-freedom impact is effectively decoupled, the seakeeping and stability of the ship are remarkably improved, and the device is suitable for special rescue scenes such as shallow water areas and complex channels.

The application discloses a kind of oyster reef repair methods based on plant material construction attachment matrix, it is related to the technical field of coastal zone ecological restoration.The repair method includes the following steps: S1, selecting plant material, the stem of salt marsh plant is the plant material;S2, the plant material is cut into segments and pretreated, and an attachment matrix assembly is prepared;S3, a plurality of the attachment matrix assemblies are tied and connected to form an attachment matrix unit, the attachment matrix unit is arranged in a matrix, is vertically fixed on the surface of a bearing member, and forms a deployable matrix structure unit;S4, the matrix structure unit is laid in the target repair area, and is fixed to the base by anchoring assembly.The plant material of the application maintains structural durability during the oyster attachment period, and is completely degraded naturally in the later period;It reduces the dependence on hard artificial matrix, has a wide source of materials, is easy to construct, has remarkable repair effect, and is suitable for oyster reef repair in intertidal zone or shallow water area and other areas where natural attachment matrix is lacking.

The application provides a large caisson offshore long-distance floating towing multi-tugboat towing marshalling method, which adopts a main tugboat and four auxiliary tugboats to form a formation; the main tugboat is located at the front of the formation to pull the caisson, and the auxiliary tugboats are distributed around the caisson to control the direction and posture of the caisson through pushing or side towing; the method includes four-stage marshalling conversion: from leaving the dock to the shallow water area, the main tugboat is hoisted and towed in cooperation with 2-4 auxiliary tugboats to control the range of the caisson through side towing and pushing; from the shallow water area to the deep water area, the main tugboat is hoisted and towed in the front, one auxiliary tugboat is stably towed in the rear, and the remaining auxiliary tugboats are on standby; from the deep water area to the shallow water area, the main tugboat is hoisted and towed in cooperation with the auxiliary tugboats on both sides through mixed marshalling of side towing and pushing, and the rear auxiliary tugboat is pushed; from the shallow water area to the bridge position, the four auxiliary tugboats are converted to push the caisson on both sides, and the main tugboat is released and leaves; through the multi-tugboat stage-by-stage cooperation, the method realizes the accurate control and safe positioning of the large caisson offshore long-distance floating.

The present application relates to a kind of for shallow water area bubble pulsating pressure subwave forward prediction method, belong to deep sea resource exploration and ship structure protection field, to solve the existing engineering shallow water area bubble pulsating pressure forward prediction problem.The present application inputs bubble initial condition, environmental parameter and pressure measuring point position, judges water area boundary influence, designs correction term expression, substitutes into equation and carries out time advance, calculates and considers the propagation time of physical quantity, finally based on Bernoulli equation exports pressure curve.The present application is based on kelvin impulse theory, corrects the buoyancy parameter deviation induced by the nonspherical deformation of bubble, using mirror bubble method to calculate the kelvin impulse theory solution of large-scale bubble under the influence of different water area boundary, to quickly predict the purpose of large-scale bubble jet direction underwater, provides theoretical basis and basic technical support for engineering construction.

The invention discloses an ecological restoration method for a bird habitat in a waste salt pan, which belongs to the technical field of ecological restoration and comprises the steps of arranging a shoal area, arranging a shallow water area and a light beach, arranging a circulation channel and building a concave polder embankment to control the water inlet and outlet speed of the salt pan. A shallow water area and a light beach are constructed in the waste salt pan to form a salt pan shoal habitat, and a water system network is formed in each shoal area space through a shallow ditch; the waste salt pan repaired by the method provides a rest and foraging place for waterfowls; along with the periodical change of the rising and falling tide water level of the salt pan, a sustainable waterfowl habitat for maintaining dynamic balance among benthic organisms, waterfowls and planktons is formed, and the restoration of the natural ecology of the waste salt pan and the restoration of biological diversity are accelerated; later-stage maintenance is easy, manual weeding and natural bait feeding are not needed, water level control is simple and convenient, cost is saved, and excessive funds and manpower do not need to be input.

The utility model relates to the technical field of aquatic plant planting, in particular to an aquatic plant planting device. The device comprises a planting rod, a planting unit and a driving unit are arranged on the planting rod, the planting unit comprises a planting rod, a fixed clamping jaw and a rotating clamping jaw, and the rotating clamping jaw is rotationally connected with the fixed clamping jaw through a rotating shaft; the planting unit is connected with the driving unit, the driving unit comprises a driving rod and a spring, one end of the driving rod is connected with the planting rod, and the other end is linked with the rotary clamping jaw through the spring; the spring sleeves the outer side of the driving rod and controls the rotating clamping jaw to release the aquatic plants when resetting. The device ensures consistent aquatic plant planting depth through mechanical linkage, solves the problem of low survival rate caused by uneven artificial planting depth, has the advantages of simplicity and convenience in operation, high efficiency and stable planting precision, and is suitable for large-scale aquatic plant planting in ecological restoration of shallow water areas.

The application discloses a kind of steel formwork construction auxiliary equipment and construction method, its structure includes movable net, steel formwork, movable net is set in the outer ring of steel formwork;Movable net includes net body, connecting strip, sliding block, float, slide, magnetic attraction strip, extension body, soft strip, fixed column, clamping block, rubber strip, base, connecting strip is connected to the upper and lower ends of net body, sliding block is fixed in the inner ring of slide, magnetic attraction strip is fixed as a whole to two independent movable nets, when net body moves along slide up and down left and right dynamically with float, it can form the sustained dynamic interception effect to the shallow water area part of steel formwork, the design effectively prevents water organisms and impurities from adhering to the surface of steel formwork by dynamic interception, avoid corrosion loss, while enhancing the structural stability when concrete is formed, simultaneously, the dynamic movement characteristics of net body can actively separate the adhering material during interception process, thereby significantly improving the long-term durability and construction quality of steel formwork.

The invention is a traction device for a vehicle, such as a wheel or a track, comprising one or more movable parts, referred to as drive parts, which can change position from a position enabling propulsion on the ground to a position ensuring propulsion in a fluid or on its surface. The main applications are land vehicles capable of traveling on roads as well as on uneven or muddy ground and of traveling on or in water, such as a motor vehicle, a boat capable of navigating shallow waters, a submarine, or an aircraft capable of landing on a beach or on the water.

The utility model belongs to pipeline detection technical field discloses a kind of multifunctional pipeline detection robot, the robot is made of two independent cabin bodies connected by connecting chain, and cabin body adopts light material.It has the advancing function of shallow water area gyro wheel advancing and deep water area fan driving, and video, radar, laser and sonar detection function.In shallow water area, gyro wheel is controlled by independent motor to realize flexible steering;In deep water area, robot relies on cabin body to float, and fan motor drives fan to push robot forward and turn around.Various detection devices work cooperatively, and detection data is transmitted to remote work platform in real time through cable, converted into required data type, to provide comprehensive basis for pipeline condition assessment, effectively improve the efficiency and accuracy of pipeline detection.

The utility model relates to the technical field of shallow water area sampling, in particular to a shallow water area bottom mud sampling device which comprises a sampling pipe, a connecting pipe is arranged at the left end of the sampling pipe, connecting blocks are fixed at the left ends of the sampling pipe and the connecting pipe, sampling rods are arranged in the sampling pipe and the connecting pipe, and sampling holes are formed in the sampling rods. A handle is fixed to the left side of the sampling rod at the left end, a positioning pipe is arranged on the left side of the connecting pipe, two connecting plates are fixed to the left end of the positioning pipe, a measuring disc is arranged at the right end of each connecting plate, a sampling ring is arranged at the right end of the sampling rod at the right side, and a plurality of sampling plates are fixed to the outer portion of the sampling ring. A plurality of groups of sampling baffles are also fixed in the sampling pipe; the handle rotates to drive the sampling rod to rotate, so that the sampling rod bottom connecting block is driven to rotate, the sampling pipe top connecting block is driven to rotate, the sampling ring is driven to rotate, the sampling plate is driven to rotate, the sampling plate and the sampling baffle are tightly attached, and sampling is achieved.

The invention discloses an ecological restoration method for a subsidence ponding area, and relates to the technical field of ecological restoration of mine environments. The method comprises the steps that a subsidence water accumulation area is divided into a side slope area and a water storage area; the slope area comprises a land area and a waterfront area, and the water storage area comprises a shallow water area and a deep water area; the land area is trimmed, and the waterfront area is trimmed; the shallow water area is trimmed, and the edge, close to the shallow water area, of the deep water area is trimmed; performing soil improvement in the land area to enable the land area to become cultivated land; geocells are laid in the waterfront area, the geocells are filled with soil, and herbaceous plants are planted in the geocells; planting aquatic plants in the shallow water area; aquatic organisms are bred in the deepwater area. The subsidence ponding area is subjected to production restoration, the water and soil utilization rate of the subsidence ponding area is increased, a complete subsidence ponding area ecological system is constructed, and the method is suitable for restoration and treatment of the ecological environment of various subsidence ponding areas.

The invention relates to a shallow-channel ship propeller propulsion system which comprises a shaft body, a plurality of blades distributed along the circumference of a central shaft of the shaft body in an array mode are arranged on the periphery of the shaft body, each blade comprises at least two flexible sections, the flexible sections are made of memory metal and are arranged to deform along with changes of water flow, and the flexible sections are arranged on the periphery of the shaft body. The flexible sections and / or the flexible sections and the shaft body are connected through hinge assemblies, the hinge assemblies enable the flexible sections to swing in the extending direction of the paddles, the shaft body is further provided with a through hole in the axial direction, a sliding block is arranged in the through hole in a sliding mode, the outer side of the shaft body is further provided with a flow guide cover, and the flow guide cover and the shaft body are coaxially arranged. When the sliding block slides along the through hole, the flow guide cover moves in the axial direction of the shaft body. According to the shallow channel ship propeller propelling system, the propeller blades formed by the multiple flexible sections can be passively adjusted according to the actual shallow water environment, and the shallow channel ship propeller propelling system can adapt to the complex and changeable shallow water environment.

The invention is a traction device such as a wheel or a track which comprises retractable blades or protrusions which can be put into operation to participate in the traction of the vehicle by their pressure on a fluid or soft ground such as sand, snow, mud or earth, and / or to exploit kinetic energy by the cyclical movement of such a blade or protrusion in such a medium. The main applications are - land vehicles which can adapt their tread to save energy at low speed or widen it or provide it with protruding sculptures when necessary, and travel in mud or sail on water or in water, - and boats for which they replace the propellers and allow them to travel on shallows, Abstract figure: Fig. 3

The utility model relates to handheld cleaning equipment, which is applied to pool cleaning, and comprises a main body, which comprises a bottom water inlet, a water outlet and a main flow channel; a power device and a flow guide structure are arranged in the main body; the power device guides water flow to enter the main flow channel from the bottom water inlet, and the water flow flows out from the water outlet after passing through the flow guide structure. The flow guide structure is arranged in the handheld cleaning equipment, the powerful dirt suction capacity can be kept in a shallow water area, and the working efficiency and the cleaning effect are improved.

The application provides an ice layer gas sample collection device and a near-surface oil and gas exploration method. The ice layer gas sample collection device comprises an ice breaking isolation device, a gas collection device and a gas discharge device. The ice breaking isolation device comprises an isolation cover and an ice breaking device. The isolation cover is used for isolating the gas bubble from the surrounding space, the ice breaking device is used for breaking the ice layer of the closed gas bubble, the gas discharge device is used for discharging the gas in the collection device, and the gas collection device is used for collecting the gas in the gas bubble. Compared with the prior art, the ice layer gas sample collection device provided by the application can be used for collecting the gas sample in the ice layer gas bubble, and solves the problem that the gas sample in the lake and marsh area cannot be collected when the northern shallow water area is frozen in winter. The near-surface oil and gas exploration method solves the problems of high difficulty, high cost and poor effect of oil and gas exploration construction when the northern shallow water area is frozen in winter, and provides more reliable physical evidence materials for comprehensive identification and identification of oil and gas geochemical exploration anomalies.

The invention discloses a reservoir capacity curve calculation method based on collaborative operation of an unmanned aerial vehicle and an unmanned ship, and relates to the technical field of water conservancy surveying and mapping. An unmanned aerial vehicle is adopted to carry a laser radar to collect shoreline and shallow water point cloud data; the process of collecting the point cloud data of the shoreline and the shallow water area is preprocessed, and a reservoir capacity curve is calculated. According to the method, the problem of a data blind area caused by terrain shielding, water depth limitation and the like in a traditional method is effectively solved, and the data integrity and the spatial resolution are improved; compared with a traditional manual segmented surveying and mapping mode, the unmanned aerial vehicle and the unmanned ship can work in parallel and efficiently, the measurement efficiency is remarkably improved, the safety risk is avoided, particularly, measurement can be safely carried out after severe weather such as rainstorm and strong wind, and the measurement accuracy is improved. And the operation safety and the data timeliness under special working conditions are ensured.

The application provides a breeding pond bird prevention device, which comprises a mounting framework and a protective net connected with the mounting framework; the mounting framework comprises two first supporting rods arranged in parallel with each other and two second supporting rods arranged in parallel with each other, the lower end of the second supporting rod is connected with an extension rod arranged at an angle with the second supporting rod and extending away from the first supporting rod; the protective net comprises a first net body, a second net body and a third net body connected in sequence; the two first supporting rods are connected through the first net body, the upper end of the first supporting rod and the upper end of the second supporting rod are connected through the second net body, and the upper end of the second supporting rod and the extension end of the extension rod are connected through the third net body. After the device is set, the first net body and the second net body can prevent birds from entering the shallow water area from the lower side of the third net body, the third net body forms a slope structure and covers the shallow water area, and birds can be prevented from standing on the shallow water area, thereby reducing the loss of fish and shrimp caused by bird predation.

The application provides an anti-ice self-climbing floating offshore photovoltaic structure, which comprises a floating structure unit and a photovoltaic array arranged above the floating structure unit; the floating structure unit comprises a floating foundation and a truss structure, and an anchoring system flexibly connecting the floating structure unit and a mud surface of the seabed; a supporting leg part is arranged at the bottom of the truss structure, and the supporting leg part is connected with the upper part of the floating foundation, so that an external part surrounded by the floating foundation forms an anti-ice space, and the cross-sectional area of the top of the floating foundation is larger than the cross-sectional area of the bottom submerged in the sea; the floating offshore photovoltaic structure provided by the application has the characteristics of strong anti-wind and anti-wave and anti-ice capabilities in severe sea conditions, and has the bottom sitting capability, so as to be suitable for shallow water areas with large tidal range and easy beach sitting, improve the reliability of the structure, ensure the stability of the structure movement, and further reduce the risk.

The utility model provides a crawler-type amphibious unmanned vehicle. The floating and crawling dual-mode motion of the aircraft can be reversibly switched, so that the aircraft can work in a deep water area, a shallow water area and a beach. The crawler-type amphibious unmanned vehicle comprises an amphibious carrying platform; the amphibious carrying platform comprises a crawler-type chassis, a platform structure body arranged above the crawler-type chassis, a main propeller arranged at the tail of the platform structure body, a buoyancy adjusting device arranged in the platform structure body and a combined navigation device arranged on the platform structure body. A communication unit and a positioning unit.

The invention relates to the technical field of habitat construction, in particular to a frog habitat construction and recovery method and device based on a fragmentation space. The method comprises the following steps: screening a fragmentation space based on amphibian habitat landscape pattern indexes to determine a restoration area, and determining obstacle points and ecological pinch points of the restoration area; obstacle points and ecological pinch points are considered, the restoration area is shaped, and a land transition area, a shallow water area and a shoal area are constructed; determining a water source communicated with the restoration area; and determining vegetation communities needing to be recovered in the land transition area, the shallow water area and the shoal area based on environmental characteristics and vegetation characteristics. According to the method, on the basis of the characteristics of the fragmentation space, aiming at the inhabiting, foraging, breeding and other requirements of frogs, the fragmentation space is reasonably utilized, the space habitat is restored by determining the restoration area, shaping the area, communicating the water source, determining the vegetation and the like, the biodiversity of the area is improved, and sustainable development is achieved.

The invention discloses a water-pressure-resistant 8MPa fluorinated ethylene propylene insulated longitudinal watertight cable, which belongs to the technical field of cables, and comprises a cable main body, the cable main body adopts a fluorinated ethylene propylene insulating layer, a longitudinal watertight sheath is integrally formed on the outer layer of the cable main body, and a plurality of groups of limiting blocks are uniformly distributed on the outer side of the cable main body in the circumferential direction; a clamping groove matched with the clamping block for use is formed in the outer side of the cable main body in an extrusion manner; by arranging a linkage structure of a movable piece, an extrusion elastic piece, an air storage bag and a backflow block, self-adaptive adjustment of buoyancy along with water pressure is achieved, a mechanical linkage mechanism from water pressure driving to air circulation to finally achieve volume adjustment is formed, and in the laying and diving process, seawater pressure pushes the movable piece to extrude the elastic piece inwards, air in the air storage bag is pressed into the backflow block, and the buoyancy is adjusted. The volume of discharged liquid is increased, buoyancy is gradually increased, bounce and collision in a shallow water area are prevented, the whole structure does not need external power, dependence on a balancing weight and a floating bag is eliminated, and various damage problems caused by buoyancy unbalance in the prior art are solved.