A vegetation irrigation device and method for forest fire prevention

Abstract

The invention relates to a vegetation irrigation device and method for forest fire prevention, belonging to the field of irrigation technology, comprising: a water reservoir, an irrigation pipe, a water pump and a pressure gauge, wherein the water reservoir is arranged in a forest; a plurality of irrigation pipes are buried in the soil of the forest at a depth of 50 cm to 100 cm, the irrigation pipes are connected with the water reservoir, and a plurality of water outlet grooves are arranged on the irrigation pipes; a water pump is connected between the water reservoir and the irrigation pipes, and the water pump pressurizes and transports water in the water reservoir to the irrigation pipes; a pressure gauge is connected to a pipeline on a side of the water pump away from the water reservoir, the pressure gauge is in communication connection with the water pump, and the water pump is turned off when the reading of the pressure gauge exceeds a preset value; the invention can solve the technical problem that a watering device in the prior art lacks the function of automatically identifying soil moisture conditions, which may cause local drought or water accumulation.

Description

Technical Field

[0001] The invention belongs to the technical field of irrigation, and in particular relates to a vegetation irrigation device and method for forest fire prevention. Background Art

[0002] Forest fire prevention vegetation is a group of plants planted in forest areas that can prevent and block forest fires. This type of vegetation has special biological characteristics that make it more difficult to ignite than ordinary plants, and can play a key role in fire prevention work.

[0003] Among this type of plants, ferns and other herbaceous plants with less drought tolerance often require artificial watering after transplanting to avoid leaf drying and plant death.

[0004] The existing patent with publication number CN115281058A discloses an underground porous watering device for forest cultivation. It includes a base, a water storage tank and a water inlet solenoid valve pipe, etc. The top of the base is fixedly connected to the water storage tank, and the water storage tank is connected to the water inlet solenoid valve pipe. The porous pipe is buried in the soil, and then an appropriate amount of water is discharged into the water storage tank. The water storage solenoid valve pipe is started, and the water is sprayed through the porous pipe to water the soil. The roots of the trees directly absorb the water, and the pressure mechanism is started at the same time, so that the water is sprayed out faster for watering.

[0005] The prior art has the following problems:

[0006] The existing technology uses solenoid valve tubes to control the start and stop of the watering device. However, the land in different locations of the forest has different evaporation and absorption rates of water due to factors such as vegetation density, light, and ventilation. The use of a fixed watering frequency and amount lacks the function of automatically identifying soil moisture conditions, which may cause local drought or waterlogging. Summary of the invention

[0007] The present invention provides a vegetation irrigation device and method for forest fire prevention, which can solve the technical problem that the watering device in the prior art lacks the function of automatically identifying the soil moisture condition, which may cause local drought or water accumulation.

[0008] In order to achieve the above object, the present invention is implemented by the following technical solutions:

[0009] The present application provides a vegetation irrigation device for forest fire prevention, which includes a water reservoir, an irrigation pipe, a water pump and a pressure gauge. The water reservoir is opened in the forest; a plurality of irrigation pipes are buried in the soil of the forest at a depth of 50 cm to 100 cm, the irrigation pipes are connected to the water reservoir, and the irrigation pipes are provided with a plurality of water outlet grooves; a water pump is connected between the water reservoir and the irrigation pipes, and the water pump pressurizes the water in the water reservoir and transports it to the irrigation pipes; the pressure gauge is connected to a pipeline on a side of the water pump away from the water reservoir, the pressure gauge is in communication connection with the water pump, and the water pump is shut down when the reading of the pressure gauge exceeds a preset value.

[0010] Through the above technical scheme, by identifying the water pressure in the pipeline, when the soil is saturated with water, the water pressure in the pipeline increases, and then the water pump is shut down in time. The start and stop of the water pump is combined with the soil moisture conditions to avoid local drought or waterlogging in the transplanting area of ​​fire-resistant vegetation.

[0011] In the present invention, the above-mentioned irrigation pipe includes a base pipe and a movable plate, both ends of the base pipe are connected with adapters, and one side of the base pipe is provided with a through groove; the movable plate is slidably connected to the through groove, and the movable plate is provided with a water outlet groove. The movable plate has a closed state and an open state. When the movable plate is in the closed state, both ends of the water outlet groove are located in the base pipe. When the water pump pressurizes the inside of the irrigation pipe, the movable plate has a tendency to slide outward; when the movable plate is in the open state, the water outlet groove connects the inside and outside of the base pipe. When the soil outside the irrigation pipe is moistened and expanded, downward pressure is applied to the movable plate, and the movable plate has a tendency to close downward under pressure.

[0012] Through the above technical solution, a movable plate is used to open and close according to the water pressure in the irrigation pipe and the pressure after the soil outside expands. The irrigation pipe is closed in time at the water-saturated position, and the pressure of the irrigation pipe in other water-unsaturated areas is increased at the same time, so as to further balance the soil moisture content in each irrigation pipe covered area.

[0013] In the present invention, the vegetation irrigation device for forest fire prevention further comprises a capillary sleeve, which is sleeved on the outside of the irrigation pipe, and the capillary sleeve has a plurality of capillary holes.

[0014] Through the above technical solution, the capillary sleeve is used to prevent the water from the irrigation pipe from directly scouring the soil. At the same time, the directional outflowing water is transformed into uniform siphon diffusion to the surroundings, thereby improving the uniformity of irrigation.

[0015] In the present invention, the vegetation irrigation device for forest fire prevention further comprises a rain collecting tray, which is connected below the trunk of the tree and is connected to the water reservoir pipe.

[0016] Through the above technical solution, rainwater collecting trays are used to collect rainwater flowing down from tree trunks, effectively preventing tree branches and leaves from collecting rainwater on the trunks and then washing the soil at the bottom of the trunks, causing local water loss. At the same time, the rainwater collected by the trunks is returned to the reservoir and fully and evenly distributed in the forest, thereby increasing the amount of irrigation water in the fire-resistant vegetation transplanting area.

[0017] In the present invention, the above-mentioned rain collecting tray includes a collection trough and a water guide plate. The collection trough is arranged around the outer side of the trunk of the tree, and the collection trough collects rainwater flowing down from the trunk of the tree; the water guide plate is connected between the collection trough and the trunk of the tree, and the water guide plate is used to guide the rainwater flowing down from the trunk of the tree to the collection trough and to clamp the collection trough to the outer side of the trunk of the tree. The water guide plate is a silicone plate.

[0018] Through the above technical solution, the silicone water guide plate is used to clamp the confluence trough, which can avoid the rain collecting tray from affecting the growth of trees and reduce the interference of human factors on the growth of trees.

[0019] In the present invention, the vegetation irrigation device for forest fire prevention further comprises an acidifying material pile, which is arranged in the water reservoir, and the acidifying material pile keeps the water in the water reservoir weakly acidic.

[0020] Through the above technical solution, acid-enhancing material piles are used to maintain the weak acidity of the reservoir, avoid soil salinization in the fire-resistant vegetation transplanting area, and improve the survival rate of vegetation.

[0021] In the present invention, the irrigation pipe and the adapter are both made of PLA material.

[0022] Through the above technical solution, PLA material is used to make structural parts at the buried position. The biodegradability of PLA is utilized to avoid the need to dig out the buried structural parts after the fire-resistant vegetation grows, thereby reducing secondary damage to the roots of the vegetation.

[0023] The present invention also provides a method for irrigating vegetation for forest fire prevention, which uses the above-mentioned vegetation irrigation device for forest fire prevention and further includes the following steps:

[0024] Step S1: Digging a grid-shaped soil trench next to the forest fire prevention vegetation transplanting area for burying irrigation pipes and water pipes connected between the irrigation pipes, the soil trench has a depth of 50 cm to 100 cm and a width that is the minimum width allowed for the irrigation pipe to be placed;

[0025] Step S2: placing the irrigation pipe and the water pipe into the bottom of the soil trough and covering them with clay soil;

[0026] Step S3: Start the water pump to pressurize and inject water into the irrigation pipe. The water pressure causes the movable plate to change from a closed state to an open state. After the water overflows the irrigation pipe, it enters the capillary sleeve. The capillary sleeve evenly supplies water to the surrounding clay soil.

[0027] Step S4: The clay soil expands after absorbing water and presses the movable plate from the open state to the closed state. When the movable plate is in the closed state, the water pump continues to pressurize to increase the reading of the pressure gauge. When the reading of the pressure gauge exceeds the preset value, the water pump is turned off.

[0028] Through the above technical solution, clay is backfilled above the irrigation pipe, and the property of clay swelling after absorbing water is utilized to increase the downward pressure after the soil is saturated with water, thereby improving the sensitivity of the irrigation pipe closure.

[0029] In the present invention, before the above step S1, the following steps are also included:

[0030] Step S0: bury a section of irrigation pipe, inject water into it and keep it for a preset time, then take samples around the irrigation pipe to observe the water infiltration range to determine the infiltration area, and determine the size of the grid-type soil trough according to the size of the infiltration area.

[0031] Through the above technical solution, sampling is used to confirm the infiltration area to determine the irrigation area of ​​a single irrigation pipe in different forest environments, and then the irrigation grid is effectively planned to make the water distribution in the fire-resistant vegetation planting area more uniform. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 A schematic diagram of the installation of a vegetation irrigation device for forest fire prevention provided by an embodiment of the present invention;

[0034] Figure 2 A schematic diagram of the structure of an irrigation pipe installation grid provided by an embodiment of the present invention;

[0035] Figure 3 An axonometric view of an irrigation pipe provided by an embodiment of the present invention;

[0036] Figure 4 A front view of an irrigation pipe provided by an embodiment of the present invention;

[0037] Figure 5 for Figure 4 Sectional view at AA in the figure;

[0038] Figure 6 A side view of a movable plate in a closed state in an irrigation pipe provided by an embodiment of the present invention;

[0039] Figure 7 for Figure 6 The cross-sectional view at BB in FIG.

[0040] Figure 8 A side view of an irrigation pipe provided by an embodiment of the present invention when a movable plate is in an open state;

[0041] Fig. 9 for Figure 8 Sectional view at CC in FIG.

[0042] Fig.10 An axonometric diagram of the rain collecting tray and tree trunk installation provided by an embodiment of the present invention;

[0043] Fig.11 A front view of the installation of a rain collecting tray and a tree trunk provided by an embodiment of the present invention;

[0044] Fig.12 for Fig.11 Sectional view at DD in the figure.

[0045] Icons: 1-irrigation pipe; 101-capillary sleeve; 102-movable plate; 1021-water outlet trough; 1022-anti-slip ridge; 103-adapter; 104-base pipe; 110-infiltration area; 2-water pump; 201-water pipe; 3-pressure gauge; 4-water reservoir; 5-acidification material pile; 6-rainwater collecting tray; 601-drainage pipe; 602-water guide plate; 603-catchment trough; 7-clay soil; 8-trees; 9-fire-resistant vegetation. DETAILED DESCRIPTION

[0046] The embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0047] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0048] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be welding, bolt connection, or riveting; it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0049] Example:

[0050] Please refer to Figures 1 to 12 , Figures 1 to 12 An embodiment of the present application is shown.

[0051] This embodiment provides a vegetation irrigation device for forest fire prevention, such as Figure 1 As shown, it includes a water reservoir 4, an irrigation pipe 1, a water pump 2 and a pressure gauge 3. The water reservoir 4 is opened in the forest; a plurality of irrigation pipes 1 are buried in the soil of the forest at a depth of 50 cm-100 cm, the irrigation pipe 1 is connected to the water reservoir 4, and the irrigation pipe 1 is provided with a plurality of water outlet grooves 1021; the water pump 2 is connected between the water reservoir 4 and the irrigation pipe 1, and the water pump 2 pressurizes the water in the water reservoir 4 and transports it to the irrigation pipe 1; the pressure gauge 3 is connected to the pipeline of the water pump 2 away from the water reservoir 4, the pressure gauge 3 is connected to the water pump 2 for communication, and the water pump 2 is turned off when the reading of the pressure gauge 3 exceeds the preset value.

[0052] During use, when the soil moisture content is low, the water in the irrigation pipe 1 will accelerate the seepage under the siphon effect of the soil when flowing into the soil. At this time, the pressure in the pipe is low. When the soil is saturated with water, the siphon effect is hindered, and the overflow of water is hindered, which increases the pressure in the irrigation pipe 1. The pressure gauge 3 will feed back the degree exceeding the preset pressure to the processor. After the processor recognizes the pressure signal exceeding the threshold, it sends a signal to shut down the water pump 2. In the forest, the processor and related electronic components are powered by solar panels, batteries and inverters. If necessary, a long pole needs to be set up to raise the solar panels above the tree canopy.

[0053] It should be noted that in forest terrain, the temperature change caused by sunlight in the soil 50-100 cm below the ground is relatively small. The forest surface is covered with vegetation, and the tree canopy intercepts a large amount of solar radiation, reducing the chance of direct sunlight to the ground. Although the soil of the surface layer of 0-20 cm has fallen leaves and humus layers that play a certain role in heat insulation and buffering, it is still affected by the sunlight rhythm of day and night and seasonal changes, and the temperature fluctuation is still quite obvious. On sunny days in summer, the temperature can reach a higher temperature during the day, and the temperature drops greatly at night.

[0054] As the depth increases, the thermal conduction efficiency of the soil gradually decreases. When it reaches a depth of about 50 centimeters, the heat transfer from the surface sunlight becomes weaker, and the temperature difference between day and night begins to narrow significantly. At a depth of 100 centimeters, the soil temperature remains in a relatively stable range throughout the year, basically unaffected by short-term changes in sunshine duration and intensity. The temperature changes caused by seasonal changes are also relatively mild, providing a relatively constant temperature environment for soil organisms such as plant roots.

[0055] Through the above technical scheme, by identifying the water pressure in the pipeline, when the soil is saturated with water, the water pressure in the pipeline increases, and then the water pump 2 is shut down in time, and the start and stop of the water pump 2 is combined with the soil moisture conditions to avoid local drought or waterlogging in the transplanting area of ​​the fire-resistant vegetation 9.

[0056] As a preferred implementation method, Figures 3 to 9 As shown, the above-mentioned irrigation pipe 1 includes a base pipe 104 and a movable plate 102, both ends of the base pipe 104 are connected with adapters 103, and one side of the base pipe 104 is provided with a through groove; the movable plate 102 is slidably connected to the through groove, and the movable plate 102 is prevented from sliding out of the through groove by an anti-slip sill 1022 integrally arranged below. When installed, the elasticity of the base pipe 104 is used to directly insert the movable plate 102 into the through groove, and the movable plate 102 is provided with a water outlet groove 1021. The movable plate 102 has a closed state and an open state. When the movable plate 102 is in the closed state, both ends of the water outlet groove 1021 are located in the base pipe 104. When the water pump 2 pressurizes the irrigation pipe 1, the movable plate 102 has a tendency to slide outward; when the movable plate 102 is in the open state, the water outlet groove 1021 connects the inner side and the outer side of the base pipe 104. When the soil outside the irrigation pipe 1 is moistened and expanded, downward pressure is applied to the movable plate 102, and the movable plate 102 is pressed and has a tendency to close downward.

[0057] After the forest soil absorbs water, the pressure increases by about 0.3kg~0.5kg per square centimeter. This pressure difference can be used as the threshold for starting and stopping the water pump 2, that is, when there is no water absorption, the pressure of the soil on the movable plate 102 is less than the pressure increased by the water pump 2, and the movable plate 102 is lifted by the water. When the soil absorbs water, the pressure increases, and the pressure of the soil on the movable plate 102 is greater than the pressure provided by the water pump 2, and the movable plate 102 is pressed down and closed.

[0058] It should be noted that if Figure 7 and Fig. 9 As shown, the position where the base pipe 104 and the movable plate 102 are fitted is set as an outwardly inclined slope, which can prevent the soil from sliding into the through groove and getting stuck, and can also improve the firmness of the base pipe 104 and the movable plate 102 after being combined.

[0059] Through the above technical solution, the movable plate 102 is used to open and close according to the water pressure in the irrigation pipe 1 and the pressure after the expansion of the outer soil, so as to close the irrigation pipe 1 in time at the water-saturated position, and at the same time increase the pressure of the irrigation pipe 1 in other water-unsaturated areas, so as to further balance the soil moisture content in each area covered by the irrigation pipe 1.

[0060] As a preferred implementation method, Figure 7 and Fig. 9 As shown, the vegetation irrigation device for forest fire prevention further includes a capillary sleeve 101, which is sleeved on the outside of the irrigation pipe 1, and the capillary sleeve 101 has a plurality of capillary holes.

[0061] The exemplary capillary sleeve 101 is made of a cotton and linen blended sleeve. After transplanting, the capillary sleeve 101 can also be naturally degraded in the soil, or a sponge can be used to obtain a better siphon effect.

[0062] Through the above technical solution, the capillary sleeve 101 is used to prevent the water from the irrigation pipe 1 from directly scouring the soil, and at the same time, the directional outflowing water is converted into uniform siphon diffusion to the surroundings, thereby improving the uniformity of irrigation.

[0063] As a preferred implementation method, Figure 1 and Fig.10 As shown, the vegetation irrigation device for forest fire prevention also includes a rain collecting tray 6, which is connected under the trunk of the tree 8, and the rain collecting tray 6 is connected to the water reservoir 4 through a drainage pipe 601.

[0064] It should be noted that, unlike the rain collecting devices in the prior art, the rain collecting tray 6 in this embodiment needs to be connected to the bottom of the tree trunk. The branches and leaves will collect a large amount of rainwater, and most of the rainwater will flow down the trunk. This installation method can rely on the conditions of the tree 8 itself to obtain a greater rain collecting effect. At the same time, because this part of the rainwater itself will not fall directly on the soil, the rainwater gathered by the tree 8 will form a depression at the bottom of the trunk, and the soil far away from the trunk can only rely on the siphon effect of the soil to slowly distribute this part of the water, which is not conducive to the uniform distribution of water, and will also make it difficult to grow fire-resistant vegetation 9 under the tree 8.

[0065] Through the above technical scheme, a rain collecting tray 6 is used to collect rainwater flowing down from the tree trunks, effectively preventing the branches and leaves of the trees 8 from collecting rainwater on the trunks and then washing the soil at the bottom of the trunks, causing local water loss. At the same time, the rainwater collected by the trunks is returned to the reservoir 4 and fully and evenly distributed in the forest land, thereby increasing the irrigation water volume in the transplanting area of ​​the fire-resistant vegetation 9.

[0066] As a preferred implementation method, Fig.11 and 12As shown, the above-mentioned rain collecting plate 6 includes a collection groove 603 and a water guide plate 602. The collection groove 603 is arranged around the outer side of the trunk of the tree 8, and the collection groove 603 collects rainwater flowing down from the trunk of the tree 8; the water guide plate 602 is connected between the collection groove 603 and the trunk of the tree 8, and the water guide plate 602 is used to guide the rainwater flowing down from the trunk of the tree 8 to the collection groove 603 and to clamp the collection groove 603 to the outer side of the trunk of the tree 8. The water guide plate 602 is a silicone plate.

[0067] Through the above technical solution, the silicone water guide plate 602 is used to clamp the confluence groove 603, which can prevent the rain collecting plate 6 from affecting the growth of the tree 8 and reduce the interference of human factors on the growth of the tree 8.

[0068] As a preferred implementation method, Figure 1 As shown, the vegetation irrigation device for forest fire prevention also includes an acid-enhancing material pile 5, which is arranged in the water reservoir 4. The acid-enhancing material pile 5 keeps the water in the water reservoir 4 weakly acidic.

[0069] The acidification pile 5 uses humic acid. After the plants grow, age, and die, their residues accumulate on the soil surface or at the bottom of the water body. These residues contain rich organic matter such as leaves, branches, and herbs. Under the action of microorganisms, the plant residues begin the decomposition and transformation process. In the early stage, bacteria, fungi and other microorganisms use the easily decomposable components such as sugars and proteins in the residues to multiply in large quantities. Along with this process, difficult-to-decompose substances such as lignin and cellulose are gradually oxidized and cracked. After a long period of alternating anaerobic and aerobic decomposition, some of the decomposition products undergo condensation and polymerization reactions, gradually forming humic acid substances containing functional groups such as carboxyl and phenolic hydroxyl groups. This is the prototype of humic acid compounds. In the forest soil, a large amount of fallen leaves accumulate every year, and after several years, they can be converted into considerable humic acid compounds. These humic acid compounds are put into the reservoir 4 to adjust the pH value of the water to maintain a weak acidity. For example, if the fire-resistant plants of the Ericaceae family that like acidic soil are irrigated with alkaline water for a long time, the soil will gradually become alkaline, resulting in iron deficiency chlorosis of the plants and poor growth. Rainwater or treated, acidic water should be used first.

[0070] Through the above technical solution, the acid-increasing material pile 5 is used to maintain the weak acidity of the water reservoir 4, avoid soil salinization in the transplanting area of ​​the fire-resistant vegetation 9, and improve the survival rate of the vegetation.

[0071] As a preferred implementation, the irrigation pipe 1 and the adapter 103 are both made of PLA material.

[0072] PLA, or polylactic acid, is a biodegradable thermoplastic polyester. It is mainly polymerized from lactic acid. In the natural environment, PLA is degraded into carbon dioxide and water through hydrolysis and enzymolysis under the action of microorganisms. At the same time, PLA can be used to make complex parts by 3D printing because of its good processing performance.

[0073] Through the above technical solution, PLA material is used to make the structural parts at the buried position, and the degradability of PLA is utilized to avoid the need to dig out the buried structural parts after the fire-resistant vegetation 9 grows, thereby reducing secondary damage to the vegetation root system.

[0074] This embodiment also provides a method for vegetation irrigation for forest fire prevention, which uses the above-mentioned vegetation irrigation device for forest fire prevention and also includes the following steps:

[0075] Step S1: Digging a grid-shaped soil trench beside the forest fire prevention vegetation 9 transplanting area for burying the irrigation pipe 1 and the water pipe 201 connected between the irrigation pipe 1, the soil trench has a depth of 50 cm to 100 cm and a width that is the minimum width allowed to put the irrigation pipe 1;

[0076] Step S2: placing the irrigation pipe 1 and the water pipe 201 into the bottom of the soil trough and covering them with clay soil 7;

[0077] Step S3: Start the water pump 2 to pressurize and inject water into the irrigation pipe 1. The water pressure causes the movable plate 102 to change from a closed state to an open state. After the water overflows the irrigation pipe 1, it enters the capillary sleeve 101. The capillary sleeve 101 evenly supplies water to the surrounding clay soil 7.

[0078] Step S4: the clay 7 expands after absorbing water and presses the movable plate 102 from the open state to the closed state. When the movable plate 102 is in the closed state, the water pump 2 continues to pressurize to increase the reading of the pressure gauge 3. When the reading of the pressure gauge 3 exceeds the preset value, the water pump 2 is shut down.

[0079] Through the above technical solution, clay soil 7 is backfilled above the irrigation pipe 1, and the property of clay soil 7 swelling after absorbing water is utilized to increase the downward pressure after the soil is saturated with water, thereby improving the closing sensitivity of the irrigation pipe 1.

[0080] As a preferred implementation method, Figure 2 As shown, before the above step S1, the following steps are also included:

[0081] Step S0: bury a section of irrigation pipe 1, fill it with water and keep it for a preset time, then take samples around the irrigation pipe 1 to observe the water infiltration range to determine the infiltration area 110, and determine the size of the grid-type soil trough according to the size of the infiltration area 110.

[0082] Through the above technical solution, sampling is adopted to confirm the infiltration area 110, so as to determine the irrigation area of ​​a single irrigation pipe 1 in different forest environments, and then effectively plan the irrigation grid to make the water distribution in the fire-resistant vegetation 9 planting area more uniform.

[0083] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A vegetation irrigation device for forest fire prevention, characterized in that: include: Reservoirs (4) are located in the forest; A plurality of irrigation pipes (1) are buried in the soil of the forest land, the buried depth of the irrigation pipes (1) ranges from 50 cm to 100 cm, the irrigation pipes (1) are connected to the water reservoir (4), and the irrigation pipes (1) are provided with a plurality of water outlet grooves (1021); A water pump (2) connected between the water reservoir (4) and the irrigation pipe (1), the water pump (2) pressurizing the water in the water reservoir (4) and transporting the water to the irrigation pipe (1); A pressure gauge (3) is connected to a pipe on a side of the water pump (2) away from the water reservoir (4); the pressure gauge (3) is in communication connection with the water pump (2); when the reading of the pressure gauge (3) exceeds a preset value, the water pump (2) is turned off; The irrigation pipe (1) comprises: A base tube (104) with adapters (103) connected at both ends, and a through groove is formed on one side of the base tube (104); A movable plate (102) is slidably connected to the through groove, a water outlet groove (1021) is provided in the movable plate (102), and the movable plate (102) has a closed state and an open state. When the movable plate (102) is in the closed state, both ends of the water outlet groove (1021) are located in the base pipe (104), and when the water pump (2) applies pressure to the inside of the irrigation pipe (1), the movable plate (102) has a tendency to slide outwards; when the movable plate (102) is in the open state, the water outlet groove (1021) connects the inside and outside of the base pipe (104), and when the soil outside the irrigation pipe (1) is moistened and expanded, a downward pressure is applied to the movable plate (102), and the movable plate (102) has a tendency to close downwards under pressure; The capillary sleeve (101) is sleeved on the outer side of the irrigation pipe (1), the capillary sleeve (101) has a plurality of capillary holes, and the capillary sleeve (101) is made of a cotton and linen blended sleeve or a sponge.

2. The vegetation irrigation device for forest fire prevention according to claim 1, characterized in that: Also includes: A rain collecting tray (6) is connected below the trunk of the tree (8), and the rain collecting tray (6) is connected to the water reservoir (4) via a pipeline.

3. The vegetation irrigation device for forest fire prevention according to claim 2, characterized in that: The rain collecting tray (6) comprises: A confluence trough (603) is arranged around the outside of the trunk of the tree (8), and the confluence trough (603) collects rainwater flowing down from the trunk of the tree (8); A water guide plate (602) is connected between the confluence trough (603) and the trunk of the tree (8); the water guide plate (602) is used to guide rainwater flowing down from the trunk of the tree (8) into the confluence trough (603) and to clamp the confluence trough (603) to the outside of the trunk of the tree; the water guide plate (602) is a silica gel plate.

4. The vegetation irrigation device for forest fire prevention according to claim 3, characterized in that: Also includes: The acid-increasing material pile (5) is arranged in the water reservoir (4), and the acid-increasing material pile (5) keeps the water in the water reservoir (4) weakly acidic.

5. The vegetation irrigation device for forest fire prevention according to claim 4, characterized in that: The irrigation pipe (1) and the adapter (103) are both made of PLA material.

6. A method for vegetation irrigation for forest fire prevention, characterized in that: The use of the vegetation irrigation device for forest fire prevention as claimed in claim 5 further comprises the following steps: Step S1: digging a grid-shaped soil trench beside the forest fire prevention vegetation transplanting area for burying the irrigation pipe (1) and the water pipe (201) connected between the irrigation pipe (1), the depth of the soil trench ranging from 50 cm to 100 cm, and the width being the minimum width allowed to place the irrigation pipe (1); Step S2: After the irrigation pipe (1) and the water pipe (201) are placed at the bottom of the soil trough, the soil trough is covered and filled with clay soil (7); Step S3: starting the water pump (2) to pressurize and inject water into the irrigation pipe (1); the water pressure causes the movable plate (102) to change from a closed state to an open state; the water overflows the irrigation pipe (1) and enters the capillary sleeve (101); the capillary sleeve (101) evenly supplies water to the surrounding clay soil (7); Step S4: the clay (7) expands after absorbing water and presses the movable plate (102) from the open state to the closed state. When the movable plate (102) is in the closed state, the water pump (2) continuously applies pressure to increase the reading of the pressure gauge (3). When the reading of the pressure gauge (3) exceeds a preset value, the water pump (2) is turned off.

7. The method for vegetation irrigation for forest fire prevention according to claim 6, characterized in that: Before step S1, the method further includes: Step S0: burying a section of irrigation pipe (1), injecting water into it and maintaining it for a preset time, then sampling around the irrigation pipe (1) to observe the water infiltration range to determine the infiltration area (110), and determining the size of the grid-type soil trough according to the size of the infiltration area (110).

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