14 results about "Soil respiration" patented technology

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.

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 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.

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.

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.

1. The name of the design product: soil respiration detection equipment. 2. The use of the design product: the design product is used to monitor the gas data of the gas released by soil respiration, such as the gas flux, gas emission and gas absorption of various gases produced by soil respiration. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The invention relates to a soil respiration parameter detection method and system based on time-sharing cooperative control of closed-loop gas circuits of multiple breathing chambers. The method comprises the steps that an air pump is started, air valve control signals are sent to an air valve decoder, corresponding air valve pairs are driven to be opened synchronously, and selected breathing chamber units are connected into a loop; a box body closing signal is sent to the breathing chamber decoder, the selected breathing chamber unit is driven to be closed, meanwhile, the corresponding air valve pair is maintained to be opened, air of the selected breathing chamber unit circulates in the air path detection loop, and soil breathing parameters are collected and analyzed in real time through the detection and analysis assembly; when the preset measurement duration is reached, loop gas washing is executed; and the air valve pairs are sequentially updated and activated, so that the breathing chamber units repeatedly execute the operation sequence until all the breathing chamber units are detected, and then the air pump is closed. According to the invention, high-precision, high-efficiency and low-interference automatic dynamic monitoring of soil respiration parameters is realized, and technical support is provided for applications such as agro-ecological management and carbon cycle model construction.

The invention belongs to the technical field of soil improvement, and particularly relates to a method for improving soil carbon sink based on carbon dioxide nanobubble / chemical energy autotrophic microbial agent / low-release charcoal coupling. The method comprises the following steps: mixing and stirring a chemoautotrophic microbial agent, low-release charcoal obtained by saccharifying and pyrolyzing biomass straws, and carbon dioxide nano bubble water in soil. Compared with the prior art, the method has the advantages that the organic carbon content of the soil can be greatly increased, and meanwhile, the soil pH is not reduced, the salt concentration is not increased, and the soil respiration is not greatly increased, that is, the soil acidification, the soil salinization and the increase of CO2 emission caused by the soil respiration are avoided. The method is a green, efficient and pollution-free soil improvement technology.

The application provides a kind of driving factor influence identification method for natural vegetation soil respiration and component, belong to environmental science and technology field.The method includes: through literature research, extract relevant data, obtain response variable, and carry out hierarchical classification to driving factor and climate condition, the data that cannot be obtained from literature is supplemented by field experiment data, quantifies the overall influence size of different levels of driving factor on response variable and soil respiration and component index under different climate vegetation conditions;Calculate the contribution size of climate vegetation condition to soil respiration and component change under the action of driving factor;Test the correlation and importance between each response variable;Analyze the multi-factor influence of typical climate driving factor and vegetation condition on soil respiration and component.The application clarifies the influence mechanism of natural driving factor on soil carbon release process under different climate conditions, and can provide key parameters for further carbon cycle simulation.

The application discloses a method for predicting spatial distribution of soil respiration temperature sensitivity, comprising the following steps: step 1, data acquisition and processing; step 2, calculating parameters of Van't Hoff index chemical reaction-temperature equation; step 3, calculating soil respiration temperature sensitivity Q 10 ; step 4, obtaining influence factor data of soil respiration temperature sensitivity Q 10 and processing; step 5, building a deep neural network model and training; step 6, determining spatial distribution of soil respiration temperature sensitivity Q 10 of a research area. The method greatly enriches the availability of existing data and significantly improves the ability to extract effective information from soil respiration data; at the same time, on the basis of enriching the availability of data, a deep neural network model is used to build a nonlinear relationship between soil respiration temperature sensitivity Q 10 and influence factors of Q 10 , and successfully extends point-scale Q 10 to regional scale, realizing prediction of spatial distribution of soil respiration temperature sensitivity.