44 results about "Soil respiration" patented technology

The invention discloses a dynamic monitoring method, system and device for soil carbon loss and a storage medium, and relates to the technical field of environment monitoring, and the method comprises the steps: obtaining soil parameters through a multi-mode sensing array and a runoff monitoring device which are arranged in a target soil area, the soil parameters comprise a soil gaseous parameter, conductivity, a soil solid parameter and a liquid carbon parameter; calculating a carbon loss amount generated by soil respiration according to the soil gas state parameter, and taking the carbon loss amount as a respiration carbon flux; according to the conductivity, the soil solid parameters and a preset soil organic carbon content relation model, calculating the carbon loss amount of soil erosion migration as erosion carbon flux; calculating the carbon loss amount of soil leaching loss according to the liquid carbon parameters, and taking the carbon loss amount as leaching carbon flux; and performing weighted summation on the respiration carbon flux, the erosion carbon flux and the leaching carbon flux to obtain the total carbon loss of the soil in the target area. A more comprehensive carbon income and expenditure evaluation method is provided by establishing a soil total carbon loss calculation framework covering'gas-solid-liquid 'three phases.

The invention provides a carbon reduction effect evaluation method and system for a healthy agricultural product production process. According to the method, by tracking carbon migration paths of chemical fertilizer application, organic fertilizer degradation and soil respiration and combining matching analysis of chemical reaction chain data and an agricultural carbon emission database, a carbon retention area and methane generation and distribution characteristics in the production process are accurately identified. Modeling is carried out on the concentration of an intermediate product by applying a dynamic compensation engine, a soil pore optimization scheme and an organic fertilizer gradient feeding strategy are generated, and conversion of degradation residues to a stable carbon form is accelerated by regulating and controlling a micro-aerobic environment. Finally, a carbon cycle equilibrium map is constructed, greenhouse gas emission reduction monitoring and effect quantitative evaluation in the whole production period are achieved, and the soil carbon sequestration capacity is synchronously improved. According to the technical scheme provided by the invention, the agricultural production carbon cycle efficiency can be optimized.

The invention discloses a soil carbon sequestration and emission reduction detection method based on soil respiration monitoring, and relates to the technical field of environment monitoring of soil carbon sequestration and emission reduction, and the method comprises the following steps: S1) arranging a limited number of soil respiration sensors in a target area; and S2) constructing a dynamic weight space mapping system: fusing a soil attribute map, a vegetation index sequence and a micro-topography elevation model obtained by remote sensing to generate a spatial heterogeneity weight base map. According to the soil carbon sequestration and emission reduction detection method based on soil respiration monitoring, through a dynamic weight space mapping system, the soil respiration space heterogeneity characterization problem is solved, and a space rule scale is provided for sparse sensor data; and the distortion risk of traditional uniform distribution and mechanical interpolation in a gradient sudden change area is eliminated. And a two-stage cooperative verification mechanism guarantees the evaluation reliability from two dimensions of a spatial mode and physical measurement.

The invention provides a soil health evaluation method. The method comprises the following steps: acquiring community characteristics of soil arthropods of to-be-evaluated soil; the soil arthropods are selected from at least one of diptera arthropods, arthropods of arachnids, coleoptera arthropods, hymenoptera arthropods and lepidoptera arthropods; the community characteristics comprise species composition and relative abundance of species; predicting soil indexes according to the community characteristics; the soil index is selected from at least one of a soil physicochemical index, a soil degradation index and a soil health index; the soil physical and chemical indexes are soil pH, soil total carbon, soil organic carbon and soil total nitrogen; the soil degradation indexes comprise a soil pH degradation index, a soil total carbon degradation index, a soil organic carbon degradation index and a soil total nitrogen degradation index; the soil health index is determined based on soil pH, soil microbial biomass nitrogen, soil respiration rate, soil total carbon, soil organic carbon, soil total nitrogen and soil bulk density; and performing soil health evaluation based on the soil indexes.

The invention relates to the technical field of ecological system monitoring, in particular to a vortex motion covariance and soil respiration synchronous collection device based on the Internet of Things. Comprising a central synchronous controller, a vortex motion covariance master collector in communication connection with the central synchronous controller, and at least one soil respiration slave collector in communication connection with the central synchronous controller. By implementing the unified clock source, the dynamic scheduling with the absolute timestamp and the real-time data correction, the problem of time alignment between heterogeneous data streams is fundamentally solved, real synchronous acquisition is realized, and inherent systematic time reference errors in a system in the prior art are eliminated.

The invention discloses a centralized photovoltaic power station carbon emission reduction and ecological system carbon income and expenditure comprehensive evaluation method. The method comprises the following steps: determining an influence area of a photovoltaic power station based on a remote sensing image; calculating the net primary productivity of the influence area, and constructing a monthly / year-by-year productivity time sequence B of the influence area; calculating net ecosystem productivity # imgabs0 # according to productivity data and soil respiration consumption of the influence area; inputting remote sensing attribute variables and climatic factors of the influence area into a productivity prediction model to obtain net ecosystem productivity # imgabs1 #; fusing the # imgabs2 # and the # imgabs3 # by adopting a weighted average fusion method to generate a productivity fusion value; based on the fusion value, calculating the carbon income and expenditure of the influence area in a set time range; calculating the carbon emission reduction of the photovoltaic power station based on the annual average generating capacity and the power marginal emission factor of the research time period; calculating the proportion of the carbon income and expenditure in the total carbon benefit, and taking the proportion as an ecological contribution index ECCR; the ECCR is positive, the larger the ECCR is, the stronger the carbon sequestration capacity of the ecological system is, and when the ECCR is negative, the system is a carbon source.

An apparatus (100, 200, 300, 400, 500) and system (600) for measuring a gas concentration within a soil is provided. The apparatus includes a tubular housing (101, 201, 301, 401, 501) configured to extend under soil and a gas sensor (108, 208, 308, 408, 508). The tubular housing includes an outer protective sleeve (114, 214, 314, 414, 514) having perforations (116, 216, 316, 416, 516) therein, a support structure (118, 218, 318, 518) within the outer protective sleeve defining an interior chamber, and a gas permeable membrane (102, 202, 302, 402, 502) carried by the support structure and configured to prevent soil or liquid from entering the interior chamber. A gas sensor is in communication with the interior chamber to measure a gas concentration in the interior chamber.

The invention discloses a soil respiration prediction method based on GIS spatial-temporal characteristics and deep learning, and relates to the technical field of soil respiration prediction, and the method comprises the following steps: obtaining historical land surface temperature data, historical soil moisture data, historical altitude data and historical soil respiration data of a to-be-predicted region; a multi-source fusion data set is generated through GIS geographic coordinate alignment; extracting spatial features, time features and nonlinear features, and generating a multi-source feature data set; establishing a hybrid network architecture based on deep learning; performing adaptive training to obtain a soil respiration prediction model; and performing actual soil respiration prediction by adopting the soil respiration prediction model. By combining multi-source data fusion, spatial-temporal feature enhancement, hybrid network architecture and adaptive training, multi-source data are integrated, spatial-temporal features are captured, model expression ability and interpretation are considered, and soil respiration prediction precision is improved.

The invention discloses a method for evaluating contribution of a timber forest to carbon dioxide reduction, and relates to the technical field of forestry carbon sink, and the method comprises the steps of normalization processing of tree species, calculation of forest and soil carbon sequestration amount, calculation of carbon footprint, soil respiration loss and net carbon contribution, and the like. By defining an ecological end (wood formation and soil carbon deposition) and a circulation end (wood use and overflow substitution) of the timber forest and providing a carbon sink increment algorithm, the contribution of the timber forest to CO2 reduction in the atmosphere can be evaluated quickly and accurately at low cost.

The utility model belongs to the field of determination of wetland soil parameters, and particularly relates to a device suitable for coastal wetland soil respiration measurement, in particular to in-situ measurement equipment, which can be used for measuring the respiration of the coastal wetland soil without hindering the release effect of tidal water fluctuation on carbon dioxide in the coastal wetland soil. The interference of accumulated water in the breathing ring on a soil breathing measurement result after ebb tide is prevented. The device comprises a sealing device, a permeable ring, an indication cover and a fixing ring, the sealing device is composed of a stainless steel ring column with a built-in thread and an external hand lifting ring, and the hand lifting ring is fixedly connected with the stainless steel ring column in a welding mode. The permeable ring is composed of an external threaded stainless steel ring column with a hole, and is screwed with the sealer through threads; the indicating cover is composed of a stainless steel disc, and the indicating cover and the water permeable ring are fixedly connected in a welding mode. The fixing ring is composed of a stainless steel ring, and the fixing ring can be directly and completely inserted into soil to be detected.

The invention relates to the technical field of soil respiration monitoring, and discloses a soil respiration monitoring device and method based on tunable semiconductor laser absorption.The device comprises a movable base which is hollow, the top of the base is fixedly connected with a top plate through a support, and a data controller is installed at the top of the base; and a plurality of breathing chambers are arranged between the base and the top plate. According to the soil respiration monitoring device and method based on tunable semiconductor laser absorption, the communication unit is arranged and used for controlling the detection end of the spectrum detection unit, so that the detection end of the spectrum detection unit is selectively connected with one respiration chamber or is sequentially connected with other respiration chambers; according to the soil respiration monitoring system, internal detection work of a single respiration chamber or internal detection work of multiple respiration chambers is formed, and the soil respiration monitoring accuracy can be further improved by calculating the average value of the internal detection data of the multiple respiration chambers.

A device for monitoring soil health conditions includes (i) a gas intake tube and (ii) a detachable cap. The gas intake tube includes: a first closed end; a second open end opposite the first end; and a body portion extending between the first closed end and the second open end, where the body portion includes a housing and a plurality of holes that extend around the body portion in which the plurality of holes allow gases to enter the housing. The gas intake tube has a length extending from the first closed end to the second open end of greater than 5 inches, and the plurality of holes are within at least 1.5 inches of the first closed end. Further, the detachable cap is connected to the second open end of the gas intake tube and has a gas dispersing slot. A system and method are also included.

The invention provides a biological stimulant for regulating and controlling micro-ecological activity of acid soil rhizosphere as well as a preparation method and application of the biological stimulant, and particularly provides the biological stimulant which comprises high fructose corn syrup, tea polyphenol and 5-aminolevulinic acid. The biostimulant further comprises an amino acid and an oligosaccharide. The biological stimulant provided by the invention can improve the pH of rhizosphere soil, reduce exchangeable aluminum ions, improve soil respiration and mycorrhizal spore density, and realize yield increase and efficiency increase.

A device for monitoring soil health conditions includes (i) a gas intake tube and (ii) a detachable cap. The gas intake tube includes: a first closed end; a second open end opposite the first end; and a body portion extending between the first closed end and the second open end, where the body portion includes a housing and a plurality of holes that extend around the body portion in which the plurality of holes allow gases to enter the housing. The gas intake tube has a length extending from the first closed end to the second open end of greater than 5 inches, and the plurality of holes are within at least 1.5 inches of the first closed end. Further, the detachable cap is connected to the second open end of the gas intake tube and has a gas dispersing slot. A system and method are also included.

The invention discloses a soil respiration monitoring method based on field gradient warming, which belongs to the technical field of soil respiration monitoring, and comprises the following steps: (1) selecting an old forest in a subtropical evergreen broad-leaved forest to construct an experimental sample plot, and setting 20 triangular quadrat in total; (2) carrying out gradient temperature increasing on the quadrats by adopting a triangular frame heating method, setting five gradient temperature increasing treatments, setting four quadrats for each treatment, and collecting the soil temperature and volumetric water content of the experimental sample plot; and (3) arranging a breathing ring seat which is not embedded into the soil and a breathing ring seat which is embedded into the soil by 50 cm in each quadrat, placing the static box on the breathing ring seats, extracting and storing gas in the static box, detecting the collected gas by using an FID (Flame Ionization Detector) of a gas chromatograph, obtaining the CO2 concentration, and then calculating soil respiration and component data thereof. According to the method, the soil respiration and the component data thereof under gradient temperature increase can be obtained, and technical support is provided for revealing the response rule and mechanism of the soil respiration to the gradient temperature increase in the subtropical forest.

The utility model belongs to the technical field of soil carbon and nitrogen emission detection, and relates to a simple manual installation device for a soil breathing ring. The device comprises a fixed seat and a manual hammer, the fixing seat comprises an embedded cylinder and a placing cylinder which are integrally formed from top to bottom and are coaxial, the outer diameter of the cylinder wall of the embedded cylinder is smaller than that of the cylinder wall of the placing cylinder, and the interior of the placing cylinder is used for placing a soil breathing ring; the manual hammer comprises a hammer cylinder and a handle arranged on the hammer cylinder; the hammer barrel of the manual hammer is movably sleeved outside the embedded barrel of the fixed seat; and the fixed seat and the manual hammer are both formed by processing solid iron plates. According to the device, in the process that the breathing ring is smashed into soil, the breathing ring can be effectively protected and prevented from being damaged, meanwhile, stress on the breathing ring is more uniform, inclination is avoided, the placing effect of the breathing ring is better, and then the accuracy of carbon and nitrogen emission monitoring is guaranteed.

This invention discloses a cooling device and method for collecting soil respiration gases. The device includes a motor, a water pump, a breathing ring, a water pipe, a water bucket, a switch, an external power cord, a water inlet, and a water outlet. The motor and water pump are assembled together in a sheet metal assembly box. The motor is fixed to the cover on the top surface of the sheet metal assembly box, and the water pump is fixed to the base of the sheet metal assembly box. The motor and water pump are connected by an electric wire. The switch and external power cord are installed at the rear of the sheet metal assembly box. A water inlet is set on the side of the sheet metal assembly box near the water pump, and a water outlet is set at the front of the sheet metal assembly box. The water outlet is connected to the breathing ring through a water pipe, and the breathing ring is connected to the water bucket through a water pipe. Water in the water bucket is connected to the water inlet of the sheet metal assembly box through a water pipe. Ice blocks are placed in the water bucket. This invention solves the problem that the temperature in the breathing chamber gradually increases with the increase of the sealing time, thereby affecting the rate of soil respiration and carbon emissions.

The invention relates to the technical field of soil environment monitoring, and discloses a drilling type deep soil respiration measuring device which comprises a main body bracket, the limiting assembly comprises two supporting plates and two limiting pieces, the two supporting plates are fixedly connected to the two sides of the bottom of the main body support respectively, the two limiting pieces are arranged on the two supporting plates respectively, and the main body support is in limiting connection with the ground through the limiting pieces; the drilling assembly comprises a drilling part and a sealing part, the drilling part is arranged on the main body support and used for stretching into the ground for drilling, and the sealing part is arranged on the drilling part and used for sealing a drilled hole; the measuring assembly comprises a measuring piece and a cleaning piece, the measuring piece is arranged in the drilling piece, after the drilling piece conducts drilling, the measuring piece is used for conducting respiration measurement on soil in the drilling piece, and the cleaning piece is arranged in the measuring piece and used for cleaning the measuring piece. The device is compact in structure, convenient to move, relatively simple and convenient to operate, and beneficial to development of field multi-point and multi-depth soil respiration measurement work.

The embodiment of the invention provides a two-library soil carbon cycle simulation method under an erosion condition and related equipment, and belongs to the technical field of data processing, and the method comprises the following steps: obtaining soil data of a target area; dividing the target area into a plurality of sub-areas; calculating a carbon library component of each sub-region according to the soil data; updating the carbon library components according to an erosion-deposition rule, wherein the erosion-deposition rule comprises soil layer number transfer rates of an erosion area and a deposition area; and simulating the carbon circulation amount of the soil according to the updated carbon library components. Soil carbon circulation under the erosion condition within the global range is simulated according to soil data of a target area through a two-library soil model, carbon library components are updated according to an erosion-deposition rule, the erosion-driven carbon circulation process is simulated, and soil organic carbon component properties and soil respiratory capacity changes are studied.

The present application relates to a kind of carbon flux synchronous measurement experimental equipment, including the monitoring device for studying soil carbon flux and the transparent cylinder for cultivating plant, the middle part of the transparent cylinder is provided with baffle, for separating the ground part and the soil part of plant in two independent chambers, for accommodating the chamber side wall of plant soil part is also provided with liquid supply interface for providing nutrient solution to plant, the baffle is opened with the perforation for facilitating plant to pass through, the two ends of the transparent cylinder are connected on the monitoring hole of monitoring device respectively.The experimental equipment of the present application can be used to monitor the related parameters of soil respiration under ground, and also can be used to monitor the carbon flux variation parameters above ground, and at the same time, two groups of monitoring data above ground and underground are obtained, which is beneficial to further study the relationship of soil respiration, and has important significance for promoting the carbon flux research of terrestrial ecosystem.

The invention provides a soil respiration dynamic monitoring method based on an autonomous mobile robot, and relates to the technical field of soil monitoring, and the method comprises the steps: collecting related information of a to-be-monitored area, carrying out grid method environment modeling based on the related information, obtaining a grid model, and carrying out path planning through an improved A * algorithm based on the grid model, the autonomous mobile robot moves according to the planned path, soil respiration data are collected in the moving process, the collected soil respiration data are preprocessed, and soil respiration dynamic monitoring is conducted on the basis of the preprocessed soil respiration data. Through a sensing-planning-analysis-feedback closed-loop system, the core defect of the traditional technology is overcome, an efficient, accurate and extensible solution is provided for soil respiration monitoring, and the method has important practical significance on ecological system management and global carbon cycle research.

The invention relates to the technical field of gas detection, in particular to a tropical forest slope self-stabilizing soil respiration monitoring device which comprises a controller and a monitoring cylinder, a supporting frame is arranged on the lower portion of the inner side wall of the monitoring cylinder, a telescopic piece and a stabilizing cylinder are arranged at the bottom of the supporting frame, and the telescopic piece is located in the stabilizing cylinder; an inserting cone is arranged at the bottom of the stabilizing cylinder, a fixing plate is arranged in the stabilizing cylinder, a driving disc is arranged in the inserting cone, and an output shaft of the telescopic piece is fixedly connected with the top of the driving disc; hinging rods are arranged on the fixing plate, hinging frames are arranged on the hinging rods, the hinging frames are hinged to the transmission disc, stabilizing assemblies are arranged on the hinging frames, and adaptive assemblies are arranged in stabilizing cylinders; and a monitoring assembly is arranged in the monitoring cylinder. After the inserting cone and the stabilizing cylinder go deep into the soil layer, the stabilizing cylinder and the inserting cone are secondarily fixed through the stabilizing assembly, the fixing effect of the stabilizing cylinder and the inserting cone in the soil is improved, and therefore the possibility that the monitoring device inclines under the action of gravity or under the action of external force is reduced.

The application discloses a screening method of a biochar modifier suitable for waste ionic rare earth tailing area soil emission reduction and carbon fixation, which comprises the following steps: (1) selecting different biochars, and determining physical and chemical properties of the biochars; (2) performing soil culture test, adding the different biochars into soil by adopting indoor constant-temperature and constant-humidity culture alkali absorption method, and performing soil respiration test determination; (3) calculating soil organic carbon mineralization properties of each group in different culture time sections; and (4) when the soil organic carbon mineralization rate is stable, analyzing the correlation between the soil organic carbon cumulative mineralization amount and the physical and chemical properties of the biochar. The application improves the soil emission reduction and carbon fixation capacity of the waste ionic rare earth tailing area, and also obtains an optimal reference range of the physical and chemical properties of the biochar, thereby providing a theoretical basis for screening the biochar with weak soil organic carbon mineralization in the waste ionic rare earth tailing area. Moreover, the biochar also has a certain effect on the improvement of soil fertility.

The invention discloses a soil microorganism detection device which comprises a soil respiration instrument body, the soil respiration instrument body comprises an air suction bin, a positioning assembly for vertically positioning the position of the air suction bin is installed at the outer end of the air suction bin, and a limiting assembly for fastening the use position of the air suction bin is installed at the lower end of the positioning assembly. A filtering assembly for filtering gas entering the soil respiration instrument body is slidably connected into the gas suction bin, a lamplight assembly for warning the limiting assembly to move is installed at the outer end of the positioning assembly, and the positioning assembly is pushed to drive the gas suction bin to be adjusted to move to the position perpendicular to the ground. The positioning assembly is adjusted to move to a sliding path of the outer end of the air suction bin, and then the positioning assembly is pushed downwards to drive the bottom end of the positioning assembly to be inserted into the ground, so that the fixing sleeve limits the angle between the air suction bin and the ground while limiting the use position of the air suction bin; therefore, the measurement period increase caused by overturning of the air suction bin in the use process is avoided as much as possible.

Belonging to the technical field of soil organic carbon determination, the invention discloses a multi-point synchronous diffusion type soil organic carbon stability determination system, which comprises: at least one soil breathing chamber for covering a to-be-measured soil or culture container to form a gas collection space; the at least one CO2 sensor is arranged in the soil breathing chamber, is communicated with the gas collecting space and is used for detecting the CO2 concentration in the gas collecting space; by designing the special field soil breathing chamber base and the indoor soil breathing chamber base, the same set of core sensing and collecting system can be seamlessly adapted to the natural soil surface and the laboratory standard container. It is ensured that an indoor control experiment and field in-situ observation can adopt identical measurement standards and equipment, the consistency and comparability of research data are improved, and experiment configuration is simplified.

The utility model provides a soil breathing chamber suitable for a complex environment, which comprises a soil ring, the soil ring is detachably connected with a mounting plate through a clamp assembly, the mounting plate is fixedly connected with a support, a ground nail is fixedly arranged on the support, and the lower end of the soil ring is inserted into soil; the upper cover seals the upper end opening of the soil ring to form a sampling cavity; the gas analyzer is used for collecting the gas in the sampling cavity for detection. The utility model has the beneficial effects that the soil ring is detachably connected with the bracket through the clamp assembly, so that the soil rings with different lengths can be conveniently replaced according to use scenes, the application range is widened, and the working efficiency in the mounting process is improved.

The utility model relates to the field of ancient tree transplanting, and discloses an ancient tree transplanting water replenishing protection device which comprises a transplanting pile and a transplanting pot, the transplanting pot is placed in the transplanting pile, a plurality of sets of exhaust holes are machined in the outer wall of the transplanting pile, four sets of sleeves standing on the ground are arranged outside the transplanting pile, and water supply rings are fixedly connected to the exteriors of the sleeves. A supporting rod is inserted into the sleeve, and a locking bolt is fixedly connected between the supporting rod and the sleeve. According to the water supplementing protection device for ancient tree transplantation, through the arrangement of the spray heads, after an ancient tree is transplanted into a transplanting pot in a transplanting pile, water in a water tank is pumped out through a water pump and fed into the spray heads to be sprayed to the ancient tree for water supplementing, water flow infiltrates into the transplanting pile, excessive water is discharged from exhaust holes for soil breathing, and a distributor can rotate by an angle; meanwhile, a locking bolt can be opened, the height of the supporting rod is adjusted to be locked so as to adapt to ancient trees of different heights and varieties, and the problems that transplanting flexibility is poor and the water supplementing effect is poor are solved.

Soil Respiration Measurement Device

The utility model discloses a built-in soil respiration monitoring system capable of multi-point joint synchronous measurement, which comprises an air chamber, a hemispherical structure is adopted, a light source module, a detection module and a temperature, humidity and pressure sensor are integrated in the air chamber, the light source module emits infrared light with fixed intensity, and the detection module receives a light intensity signal and calculates a CO2 concentration value in a closed space of the air chamber; the top end of the sealing soil ring is tightly attached to the bottom end of the air chamber through a rubber sealing gasket to form a closed space; the ventilation balance valve is used for maintaining air pressure balance inside and outside the air chamber; the driving shaft is connected with the motor and the air chamber support to control opening and closing of the air chamber, and the driven shafts are symmetrically distributed below the driving shaft to stabilize the motion trail. The built-in structure of the CO2 gas analyzer is adopted, measurement can be directly carried out in the gas chamber, an external gas path pipeline is not needed, gas transmission delay can be reduced, and response time can be shortened; the soil respiration monitoring system has the advantages that the soil respiration monitoring system is simple in structure and free of external environment interference, multi-point joint networking synchronous observation within a visual distance of about 10km is realized based on the LoRa central data acquisition controller, and meanwhile, the soil respiration monitoring system is applicable to various complex ecological systems by adopting a firm and durable shell, so that technical support is provided for climate change research.

The invention discloses a soil breathing gas collecting device suitable for coastal zone wetlands, which comprises a collecting cylinder with a hollow bottom, a one-way gas outlet pipe is inserted on the collecting cylinder, one end of the one-way gas outlet pipe is communicated with a gas collecting container, and an intelligent sensor is arranged on the gas collecting container; the bearing base sleeves the outer wall of the collecting barrel, and a plurality of groups of inserting pieces are arranged at the bottom of the bearing base; the protection mechanism comprises a plurality of groups of V-shaped guide plates, the plurality of groups of guide plates are arranged on the outer side of the circumference of the collecting barrel in an annular array and located above the bearing base, and one side of each guide plate is connected with the outer wall of the collecting barrel through a plurality of groups of elastic buffer pieces. The device is provided with a protection mechanism, sea wave impact can be removed to two sides through a V-shaped guide plate, and the impact force is elastically buffered in combination with an elastic buffer piece, so that the situation that the collection barrel displaces or inclines or even is separated from the position due to the sea wave impact is effectively prevented, and stable gas collection and detection work is ensured; and meanwhile, the service life of the box body and other structures is prolonged.