Determination method, device and system of three-dimensional micro-irrigation system for regulating and controlling plant stomatal behaviors

Abstract

The invention discloses a method, a device and a system for determining a three-dimensional micro-irrigation system for regulating and controlling plant stomatal behaviors. The method comprises the following steps: acquiring air temperature data and air humidity data at the upper part of a plant canopy, and calculating the pore opening of a plant canopy leaf; if the air hole opening degree does not reach the air hole opening degree threshold value, a valve of the atomization micro-spraying system is opened, and spray irrigation operation on the plants is started; acquiring soil temperature data and soil humidity data; if the soil humidity data is smaller than the soil field water content or the soil temperature data is higher than the root system suffocation temperature, a valve of the buried drip irrigation system is opened, and drip irrigation operation on plants is started; according to the method, the maximization of photosynthesis efficiency and water utilization efficiency can be realized by regulating and controlling the opening and closing behaviors of the stomata of the plant leaves in the extremely harsh environment of the sand wasteland area and the special environments such as shading of the photovoltaic panel, the maximization of biomass is realized, and good economic benefits are generated.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural planting, and particularly relates to a method, device and system for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior. Background Art

[0002] With the rapid development of photovoltaic agriculture in sandy wasteland areas, planting under photovoltaic panels has become a new agricultural model. However, the environmental conditions in sandy wasteland areas are extremely harsh. Characteristics such as the canopy temperature being higher than the leaf stomatal closure temperature, the soil temperature at the position of the plant absorption roots reaching the plant absorption root asphyxiation temperature, and the shading of photovoltaic panels all have a significant adverse impact on the plant growth environment. Most of the existing irrigation and control methods for micro-irrigation systems are designed for plant growth under natural conditions and full sunlight, only considering from the soil perspective, lacking consideration from the perspective of plant physiology, lacking consideration of extremely harsh environmental conditions, and lacking consideration of the specific environment under photovoltaic panels. It is difficult to meet the needs of plant growth and difficult to obtain a high plant biomass. Therefore, there is an urgent need for multi-scale mechanism analysis and technology integration, that is, a three-dimensional micro-irrigation integrated system with a new concept of intelligent regulation from the perspective of the interaction laws between the plant molecular, cellular, and whole plant levels and the soil and atmospheric environments, which can combine the shading characteristics of photovoltaic panels, the extremely harsh conditions of sandy wasteland, plant biological and physiological characteristics, and aiming to achieve the maximum plant biomass. Summary of the Invention

[0003] The present invention provides a method, device and system for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior, so as to solve the problem that the existing irrigation and control methods for micro-irrigation systems are difficult to meet the needs of plant growth and difficult to obtain a high plant biomass.

[0004] In a first aspect, the present invention provides a method for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior, including:

[0005] Obtaining air temperature data and air humidity data collected by an air temperature and humidity sensor installed above the plant leaf canopy;

[0006] Calculating the stomatal aperture of the plant canopy leaves according to the air temperature data and air humidity data;

[0007] Judging whether the stomatal aperture reaches the stomatal aperture threshold corresponding to the maximum photosynthesis efficiency;

[0008] If the stomatal aperture does not reach the stomatal aperture threshold, opening the valve of the atomizing micro-spray system to start the sprinkler irrigation operation for the plant;

[0009] If the stomatal aperture reaches the stomatal aperture threshold, closing the valve of the atomizing micro-spray system to stop the sprinkler irrigation operation for the plant;

[0010] Obtain the soil temperature data and soil humidity data collected by the soil temperature and humidity sensors installed in the soil layer where the plant's absorbing roots are distributed;

[0011] Judge whether the soil humidity data is less than the soil field water content, and whether the soil temperature data is higher than the root suffocation temperature;

[0012] If the soil humidity data is less than the soil field water content, or the soil temperature data is higher than the root suffocation temperature, open the valve of the buried drip irrigation system and start the drip irrigation operation for the plants;

[0013] If the soil humidity data reaches the soil field water content and the soil temperature data is lower than the root suffocation temperature, close the valve of the buried drip irrigation system and stop the drip irrigation operation for the plants.

[0014] Furthermore, calculate the stomatal aperture of the leaves in the plant canopy according to the air temperature data and air humidity data, including:

[0015] Calculate the saturated water vapor pressure according to the air temperature data;

[0016] Calculate the actual water vapor pressure according to the air humidity data and the saturated water vapor pressure;

[0017] Calculate the water vapor pressure difference according to the saturated water vapor pressure and the actual water vapor pressure;

[0018] Calculate the stomatal conductance according to the air temperature data, air humidity data, response function of the water vapor pressure difference and the maximum stomatal conductance, and the stomatal conductance represents the stomatal aperture.

[0019] Furthermore,

[0020] The calculation formula for saturated water vapor pressure: es = 0.6108×exp((17.27×T) / (T + 237.3)); where es is the saturated water vapor pressure and T is the air temperature data;

[0021] The calculation formula for actual water vapor pressure: ea = (RH / 100)×es; where ea is the actual water vapor pressure, RH is the air humidity data, and es is the saturated water vapor pressure;

[0022] The calculation formula for water vapor pressure difference: VPD = es - ea; where VPD is the water vapor pressure difference, es is the saturated water vapor pressure, and ea is the actual water vapor pressure;

[0023] The calculation formula for stomatal conductance: gs = g max ×f(T)×f(RH)×f(VPD); where gs is the stomatal conductance, g maxgs is the maximum stomatal conductance, and f(T), f(RH), and f(VPD) are the response functions of air temperature data, air humidity data, and vapor pressure deficit, respectively.

[0024] Further,

[0025] Response function of air temperature data: where Tσp T is the optimum temperature, σ is the standard deviation, and σ T is the standard deviation of temperature response;

[0026] Response function of air humidity data: f(RH) = RH / RHσpt, where RHσpt is the optimum humidity;

[0027] Response function of vapor pressure deficit: f(VPD) = exp(-k × VPD), where k is an empirical coefficient.

[0028] In a second aspect, the present invention provides a determination device for a three-dimensional micro-irrigation system for regulating plant stomatal behavior, comprising:

[0029] A first acquisition unit for acquiring air temperature data and air humidity data collected by an air temperature and humidity sensor installed above the plant canopy;

[0030] A calculation unit for calculating the stomatal aperture of the plant canopy leaves based on the air temperature data and the air humidity data;

[0031] A first judgment unit for judging whether the stomatal aperture reaches a stomatal aperture threshold corresponding to the maximum photosynthesis efficiency;

[0032] A first control unit for, when the stomatal aperture does not reach the stomatal aperture threshold, opening the valve of the atomizing micro-spray system to start the irrigation operation on the plant; and when the stomatal aperture reaches the stomatal aperture threshold, closing the valve of the atomizing micro-spray system to stop the irrigation operation on the plant;

[0033] A second acquisition unit for acquiring soil temperature data and soil humidity data collected by a soil temperature and humidity sensor installed in the soil layer where the plant absorption roots are distributed;

[0034] A second judgment unit for judging whether the soil humidity data is less than the soil field water content and whether the soil temperature data is higher than the root suffocation temperature;

[0035] A second control unit, configured to open the valve of the subsurface drip irrigation system to start the drip irrigation operation for plants when the soil moisture data is less than the soil field water content or the soil temperature data is higher than the root suffocation temperature; and close the valve of the subsurface drip irrigation system to stop the drip irrigation operation for plants when the soil moisture data reaches the soil field water content and the soil temperature data is lower than the root suffocation temperature.

[0036] In a third aspect, the present invention provides a determination system for a three-dimensional micro-irrigation system for regulating plant stomatal behavior, including: a set of inverted atomizing micro-sprinkler systems above the plant canopy, two sets of subsurface drip irrigation systems on both sides of the plant roots, an air temperature and humidity sensor above the plant canopy, a soil temperature and humidity sensor in the soil layer where the plant absorbing roots are distributed, a cloud control platform, and a mobile APP;

[0037] The air temperature and humidity sensor is configured to collect air temperature data and air humidity data above the plant canopy;

[0038] The soil temperature and humidity sensor is configured to collect soil temperature data and soil moisture data in the soil layer where the plant absorbing roots are distributed;

[0039] The cloud control platform and the mobile APP are configured to obtain the air temperature data and air humidity data collected by the air temperature and humidity sensor installed above the plant canopy; calculate the stomatal aperture of the plant canopy leaves according to the air temperature data and air humidity data; determine whether the stomatal aperture reaches the stomatal aperture threshold corresponding to the maximum photosynthesis efficiency; if the stomatal aperture does not reach the stomatal aperture threshold, open the valve of the atomizing micro-sprinkler system to start the sprinkler irrigation operation for plants; if the stomatal aperture reaches the stomatal aperture threshold, close the valve of the atomizing micro-sprinkler system to stop the sprinkler irrigation operation for plants;

[0040] Obtain the soil temperature data and soil moisture data collected by the soil temperature and humidity sensor installed in the soil layer where the plant absorbing roots are distributed; determine whether the soil moisture data is less than the soil field water content and whether the soil temperature data is higher than the root suffocation temperature; if the soil moisture data is less than the soil field water content or the soil temperature data is higher than the root suffocation temperature, open the valve of the subsurface drip irrigation system to start the drip irrigation operation for plants; if the soil moisture data reaches the soil field water content and the soil temperature data is lower than the root suffocation temperature, close the valve of the subsurface drip irrigation system to stop the drip irrigation operation for plants.

[0041] The present invention has the following beneficial effects: The method, device and system for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior according to the present invention can maximize the photosynthesis efficiency and water use efficiency by regulating the opening and closing behavior of plant leaf stomata in extremely harsh environments such as desert areas and special environments such as the shading of photovoltaic panels, maximize the biomass, and generate good economic benefits.

[0042] By regulating the maximization of photosynthesis efficiency and water use efficiency, water and fertilizer are saved, and good ecological benefits are generated.

[0043] A new principle, new method and new system for intelligent control of the micro-irrigation system by analyzing and integrating the multi-scale mechanisms of the interaction laws between plants at the molecular, cellular and whole-plant levels and the soil and atmospheric environments are created, which is conducive to promoting the scientific and technological progress of the industry. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions of the present invention, the drawings required for use in the embodiments will be briefly introduced below. Obviously, for those of ordinary skill in the art, other drawings can also be obtained based on these drawings without creative efforts.

[0045] Figure 1 It is a flowchart of the method for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior provided by the present invention; wherein (a) is a control flowchart of the atomizing micro-spraying system, and (b) is a control flowchart of the subsurface drip irrigation system. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0046] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the specific embodiments and corresponding drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention. The technical solutions provided by each embodiment of the present invention will be described in detail below with reference to the drawings.

[0047] Please refer to Figure 1 , which is a method for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior provided by an embodiment of the present invention, wherein Figure 1 (a) is a control flowchart of the atomizing micro-spraying system, specifically including:

[0048] S101, obtaining the air temperature data and air humidity data collected by the air temperature and humidity sensors installed above the plant canopy.

[0049] Specifically, other auxiliary data such as light intensity and carbon dioxide concentration can be obtained synchronously.

[0050] S102: Calculate the stomatal aperture of the plant canopy leaves based on the air temperature data and the air humidity data.

[0051] Specifically, the saturated water vapor pressure is calculated based on the air temperature data; the saturated water vapor pressure calculation formula is: es = 0.6108 × exp((17.27 × T) / (T + 237.3)); where es is the saturated water vapor pressure and T is the air temperature data.

[0052] Calculate the actual water vapor pressure based on the air humidity data and saturated water vapor pressure; the actual water vapor pressure calculation formula is: ea = (RH / 100) × es; where ea is the actual water vapor pressure, RH is the air humidity data, and es is the saturated water vapor pressure.

[0053] The vapor pressure difference is calculated based on the saturated vapor pressure and the actual vapor pressure. The vapor pressure difference reflects the dryness of the air and is a key parameter affecting stomatal opening and closing. The formula for calculating the vapor pressure difference is: VPD = es - ea; where VPD is the vapor pressure difference, es is the saturated vapor pressure, and ea is the actual vapor pressure. The higher the VPD value, the drier the air, and the more likely plants are to close their stomata to reduce water loss.

[0054] Stomatal conductance is calculated based on air temperature data, air humidity, water vapor pressure difference response function and maximum stomatal conductance. Stomatal conductance represents the stomatal opening. Stomatal conductance is usually estimated by empirical models or physiological models. The commonly used empirical model is: gs = g max ×f(T)×f(RH)×f(VPD); where gs is the stomatal conductance, g max Maximum stomatal conductance (f(T), f(RH), and f(VPD)) depend on plant species and growth stage. It is measured directly from plant leaves using high-precision instruments such as a leaf stomatal conductometer or photosynthesis meter, and is obtained under optimal environmental conditions. f(T), f(RH), and f(VPD) are response functions to air temperature, air humidity, and vapor pressure deficit, respectively.

[0055] In this embodiment, the response function of the air temperature data is: where Tσp T is the optimum temperature, and σ is the standard deviation. T is the standard deviation of the temperature response, and its unit is the same as the temperature, which is °C. T It is based on experimental measurements; the response function of air humidity data is: f(RH) = RH / RHσpt, where RHσpt is the optimum humidity; the response function of water vapor pressure difference is: f(VPD) = exp(-k×VPD), where k is the empirical coefficient.

[0056] S103: Determine whether the stomatal aperture reaches a stomatal aperture threshold corresponding to the maximum photosynthesis efficiency.

[0057] When gs approaches g max the stomata are fully open. When gs is significantly lower than g max the stomata are partially closed. When gs approaches zero, the stomata are fully closed.

[0058] S104, if the stomatal aperture does not reach the stomatal aperture threshold, open the valve of the atomized micro-spray irrigation system and start the irrigation operation for the plants.

[0059] S105, if the stomatal aperture reaches the stomatal aperture threshold, close the valve of the atomized micro-spray irrigation system and stop the irrigation operation for the plants.

[0060] The above process repeats cyclically.

[0061] Figure 1 (b) is the control flow chart of the subsurface drip irrigation system, specifically including:

[0062] S201, obtain the soil temperature data and soil humidity data collected by the soil temperature and humidity sensors installed in the soil layer where the plant absorption roots are distributed.

[0063] S202, determine whether the soil humidity data is less than the soil field water content and whether the soil temperature data is higher than the root suffocation temperature.

[0064] Specifically, the soil field water content is accurately measured in the laboratory or in the field. The root suffocation temperature of plants refers to the soil temperature when the roots are unable to breathe and absorb nutrients normally due to lack of oxygen. When the soil temperature is too high, the oxygen solubility decreases, resulting in root hypoxia, which in turn affects the growth and health of plants. The root suffocation temperature of plants is determined through experiments: in the laboratory or greenhouse, by adjusting the soil temperature and observing the responses of plants at different temperatures. Monitoring indicators: record the growth, respiration rate and nutrient absorption of the roots to determine the temperature at which the roots begin to lack oxygen.

[0065] S203, if the soil humidity data is less than the soil field water content, or the soil temperature data is higher than the root suffocation temperature, open the valve of the subsurface drip irrigation system and start the drip irrigation operation for the plants.

[0066] S204, if the soil humidity data reaches the soil field water content and the soil temperature data is lower than the root suffocation temperature, close the valve of the subsurface drip irrigation system and stop the drip irrigation operation for the plants.

[0067] The above process repeats cyclically.

[0068] The embodiment of the present invention also provides a determination device for a three-dimensional micro-irrigation system for regulating plant stomatal behavior, including:

[0069] A first acquisition unit, configured to acquire air temperature data and air humidity data collected by an air temperature and humidity sensor installed above the plant canopy.

[0070] A calculation unit, configured to calculate the stomatal aperture of the plant canopy leaves according to the air temperature data and the air humidity data.

[0071] A first judgment unit, configured to judge whether the stomatal aperture reaches a stomatal aperture threshold corresponding to the maximum photosynthesis efficiency.

[0072] A first control unit, configured to, when the stomatal aperture does not reach the stomatal aperture threshold, open the valve of the atomizing micro-spray irrigation system to start the irrigation operation of the plant; when the stomatal aperture reaches the stomatal aperture threshold, close the valve of the atomizing micro-spray irrigation system to stop the irrigation operation of the plant.

[0073] A second acquisition unit, configured to acquire soil temperature data and soil humidity data collected by a soil temperature and humidity sensor installed in the soil layer where the plant absorption roots are distributed.

[0074] A second judgment unit, configured to judge whether the soil humidity data is less than the soil field water content and whether the soil temperature data is higher than the root suffocation temperature.

[0075] A second control unit, configured to, when the soil humidity data is less than the soil field water content or the soil temperature data is higher than the root suffocation temperature, open the valve of the subsurface drip irrigation system to start the drip irrigation operation of the plant; when the soil humidity data reaches the soil field water content and the soil temperature data is lower than the root suffocation temperature, close the valve of the subsurface drip irrigation system to stop the drip irrigation operation of the plant.

[0076] An embodiment of the present invention further provides a determination system for a three-dimensional micro-irrigation system for regulating plant stomatal behavior, including a set of inverted atomizing micro-spray irrigation systems above the plant canopy, two sets of subsurface drip irrigation systems on both sides of the plant roots, an air temperature and humidity sensor above the plant canopy, a soil temperature and humidity sensor in the soil layer where the plant absorption roots are distributed, a cloud control platform, and a mobile phone APP.

[0077] The air temperature and humidity sensor is configured to collect air temperature data and air humidity data above the plant canopy.

[0078] The soil temperature and humidity sensor is configured to collect soil temperature data and soil humidity data in the soil layer where the plant absorption roots are distributed.

[0079] A cloud control platform and a mobile APP are used to obtain air temperature data and air humidity data collected by an air temperature and humidity sensor installed above the plant canopy. According to the air temperature data and the air humidity data, the stomatal aperture of the plant canopy leaves is calculated. It is determined whether the stomatal aperture reaches the stomatal aperture threshold corresponding to the maximum photosynthesis efficiency. If the stomatal aperture does not reach the stomatal aperture threshold, the valve of the atomizing micro-spraying system is opened to start the sprinkler irrigation operation for the plant. If the stomatal aperture reaches the stomatal aperture threshold, the valve of the atomizing micro-spraying system is closed to stop the sprinkler irrigation operation for the plant.

[0080] Obtain soil temperature data and soil humidity data collected by a soil temperature and humidity sensor installed in the soil layer where the plant's absorbing roots are distributed. Determine whether the soil humidity data is less than the soil field water content and whether the soil temperature data is higher than the root suffocation temperature. If the soil humidity data is less than the soil field water content or the soil temperature data is higher than the root suffocation temperature, the valve of the buried drip irrigation system is opened to start the drip irrigation operation for the plant. If the soil humidity data reaches the soil field water content and the soil temperature data is lower than the root suffocation temperature, the valve of the buried drip irrigation system is closed to stop the drip irrigation operation for the plant.

[0081] An embodiment of the present invention also provides a storage medium in which a computer program is stored. When the computer program is executed by a processor, it implements some or all of the steps in each of the embodiments of the method for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior provided by the present invention. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM for short), a random access memory (RAM for short), etc.

[0082] Those skilled in the art can clearly understand that the technology in the embodiments of the present invention can be implemented by means of software plus a necessary general hardware platform. Based on such an understanding, the technical solution in the embodiments of the present invention, in essence, or the part that contributes to the prior art can be embodied in the form of a software product. This computer software product can be stored in a storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to enable a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each of the embodiments or some parts of the embodiments of the present invention.

[0083] For the same or similar parts among the various embodiments in this specification, reference can be made to each other. In particular, for the embodiment of the device for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior, since it is basically similar to the method embodiment, the description is relatively simple, and reference can be made to the description in the method embodiment for related parts.

[0084] The above-described embodiments of the present invention do not constitute a limitation on the protection scope of the present invention.

Claims

1. A method for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior, characterized in that, Including: Obtaining air temperature data and air humidity data collected by an air temperature and humidity sensor installed above the plant canopy; Calculating the stomatal aperture of the plant canopy leaves according to the air temperature data and the air humidity data; Judging whether the stomatal aperture reaches the stomatal aperture threshold corresponding to the maximum photosynthesis efficiency; If the stomatal aperture does not reach the stomatal aperture threshold, opening the valve of the atomizing micro-spray system to start the sprinkler irrigation operation for the plant; If the stomatal aperture reaches the stomatal aperture threshold, closing the valve of the atomizing micro-spray system to stop the sprinkler irrigation operation for the plant; Obtaining soil temperature data and soil humidity data collected by a soil temperature and humidity sensor installed in the distribution layer of the plant absorption roots; Judging whether the soil humidity data is less than the soil field water content and whether the soil temperature data is higher than the root suffocation temperature; If the soil humidity data is less than the soil field water content, or the soil temperature data is higher than the root suffocation temperature, opening the valve of the subsurface drip irrigation system to start the drip irrigation operation for the plant; If the soil humidity data reaches the soil field water content and the soil temperature data is lower than the root suffocation temperature, closing the valve of the subsurface drip irrigation system to stop the drip irrigation operation for the plant.

2. The method for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior according to claim 1, characterized in that Calculating the stomatal aperture of the plant canopy leaves according to the air temperature data and the air humidity data, including: Calculating the saturated water vapor pressure according to the air temperature data; Calculating the actual water vapor pressure according to the air humidity data and the saturated water vapor pressure; Calculating the water vapor pressure difference according to the saturated water vapor pressure and the actual water vapor pressure; Calculating the stomatal conductance according to the air temperature data, the air humidity data, the response function of the water vapor pressure difference and the maximum stomatal conductance, and the stomatal conductance represents the stomatal aperture.

3. The method for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior according to claim 2, wherein The formula for calculating the saturated water vapor pressure: es = 0.6108×exp((17.27×T) / (T + 237.3)); where es is the saturated water vapor pressure and T is the air temperature data; The formula for calculating the actual water vapor pressure: ea = (RH / 100)×es; where ea is the actual water vapor pressure, RH is the air humidity data, and es is the saturated water vapor pressure; The formula for calculating the water vapor pressure difference: VPD = es - ea; where VPD is the water vapor pressure difference, es is the saturated water vapor pressure, and ea is the actual water vapor pressure; Stomatal conductance calculation formula: gs = g max ×f(T)×f(RH)×f(VPD); where gs is the stomatal conductance, g max is the maximum stomatal conductance, and f(T), f(RH), and f(VPD) are the response functions of air temperature data, air humidity data, and vapor pressure deficit, respectively.

4. The method for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior according to claim 3, wherein Response function of air temperature data: where Tσp T is the optimum temperature, σ is the standard deviation, and σ T is the standard deviation of temperature response; The response function of the air humidity data: f(RH) = RH / RHσpt, where RHσpt is the optimum humidity; The response function of the water vapor pressure difference: f(VPD) = exp(-k×VPD), where k is an empirical coefficient.

5. An apparatus for determining a three-dimensional micro-irrigation system for regulating plant stomatal behavior, characterized in that, Including: A first obtaining unit for obtaining air temperature data and air humidity data collected by an air temperature and humidity sensor installed above the plant canopy; A calculation unit for calculating the stomatal aperture of the plant canopy leaves according to the air temperature data and the air humidity data; A first judgment unit, configured to judge whether the stomatal aperture reaches the stomatal aperture threshold corresponding to the maximum photosynthesis efficiency; A first control unit, configured to, when the stomatal aperture does not reach the stomatal aperture threshold, open the valve of the atomizing micro-spray system to start the irrigation operation for the plant; when the stomatal aperture reaches the stomatal aperture threshold, close the valve of the atomizing micro-spray system to stop the irrigation operation for the plant; A second acquisition unit, configured to acquire the soil temperature data and soil humidity data collected by the soil temperature and humidity sensor installed in the plant absorption root distribution layer; A second judgment unit, configured to judge whether the soil humidity data is less than the soil field water content and whether the soil temperature data is higher than the root suffocation temperature; A second control unit, configured to, when the soil humidity data is less than the soil field water content or the soil temperature data is higher than the root suffocation temperature, open the valve of the buried drip irrigation system to start the drip irrigation operation for the plant; when the soil humidity data reaches the soil field water content and the soil temperature data is lower than the root suffocation temperature, close the valve of the buried drip irrigation system to stop the drip irrigation operation for the plant.

6. A determination system for a three-dimensional micro-irrigation system for regulating plant stomatal behavior, characterized in that, including: A set of inverted atomizing micro-spray systems above the plant canopy, two sets of buried drip irrigation systems on both sides of the plant roots, an air temperature and humidity sensor above the plant canopy, a soil temperature and humidity sensor in the plant absorption root distribution layer, a cloud control platform, and a mobile APP; The air temperature and humidity sensor is configured to collect the air temperature data and air humidity data above the plant canopy; The soil temperature and humidity sensor is configured to collect the soil temperature data and soil humidity data in the plant absorption root distribution layer; The cloud control platform and the mobile APP are configured to acquire the air temperature data and air humidity data collected by the air temperature and humidity sensor installed above the plant canopy; calculate the stomatal aperture of the plant canopy leaves according to the air temperature data and air humidity data; judge whether the stomatal aperture reaches the stomatal aperture threshold corresponding to the maximum photosynthesis efficiency; if the stomatal aperture does not reach the stomatal aperture threshold, open the valve of the atomizing micro-spray system to start the irrigation operation for the plant; if the stomatal aperture reaches the stomatal aperture threshold, close the valve of the atomizing micro-spray system to stop the irrigation operation for the plant; Acquire the soil temperature data and soil humidity data collected by the soil temperature and humidity sensor installed in the plant absorption root distribution layer; judge whether the soil humidity data is less than the soil field water content and whether the soil temperature data is higher than the root suffocation temperature; if the soil humidity data is less than the soil field water content or the soil temperature data is higher than the root suffocation temperature, open the valve of the buried drip irrigation system to start the drip irrigation operation for the plant; if the soil humidity data reaches the soil field water content and the soil temperature data is lower than the root suffocation temperature, close the valve of the buried drip irrigation system to stop the drip irrigation operation for the plant.

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