Automatic rainwater collection, storage and supply system suitable for drought-resistant afforestation of flat ground in arid region

Abstract

The utility model relates to an automatic rainwater collection, storage and supply system suitable for drought-resistant afforestation of a flat ground in an arid area, which comprises an afforestation area, a plurality of water collection areas are arranged in the afforestation area, and the water collection areas are arranged at intervals in a matrix manner; a water collecting ditch is formed between any two adjacent water collecting areas; a closed water storage structure is arranged below the soil of each water collection area; a plurality of self-suction ropes are further arranged in each water storage structure. The system is simple in overall structure and convenient to implement, rainwater can be effectively collected for lasting water storage and automatic water supplement, the system energy consumption and cost are reduced, the system does not harm the environment, and water circulation and ecological balance of an original ecological system in an afforestation area can be effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of water conservation, drought resistance, and afforestation, in particular to an automatic rainwater collection and supply system suitable for drought resistance and afforestation on flat land in arid areas. Background Art

[0002] Water is a key limiting factor for ecological restoration in arid and semi-arid areas. In order to ensure water replenishment, researchers have developed and applied a variety of drought-resistant technologies, including water-saving irrigation, water storage and conservation, and cultivation of drought-resistant plants.

[0003] The existing water storage and conservation technologies mainly include the following:

[0004] Rainwater harvesting and utilization technology is a widely used method of water storage and conservation. By setting up rainwater collection facilities, such as roof collection systems, ground drainage systems, and sump pits, precipitation can be effectively collected and then used for irrigation and water storage. This technology not only maximizes the use of rainwater resources, but also reduces dependence on groundwater or other water sources.

[0005] Underground water storage technology is also an important means of water storage and conservation. It uses underground water storage facilities such as ditches, water cellars, and ponds to store rainwater or groundwater to ensure that trees still have a stable water supply during droughts.

[0006] Soil water retention technology is also an important way to improve the soil's ability to store and retain water. By improving soil structure and adding water retaining agents, this technology can significantly improve the soil's ability to retain water and reduce water evaporation losses, which not only helps improve the soil environment, but also provides better growth conditions for trees.

[0007] In addition, there are some other water storage and conservation technologies, such as terrace technology, hillside interception technology, slope water storage technology, ditch water storage technology, ditch top protection engineering technology, etc. These technologies are designed according to different topography and hydrological conditions. They aim to effectively intercept, store and utilize rainwater resources. Combined with current water-saving irrigation technologies, such as drip irrigation, micro-sprinkler irrigation and other modern irrigation systems, this technology can accurately and quantitatively irrigate trees, which not only reduces water waste, improves water use efficiency, but also helps promote the healthy growth of trees.

[0008] However, there are some limitations in the existing water storage and water conservation technologies, which are mainly reflected in the following aspects: 1. The catchment area of ​​many water storage and water conservation technologies is limited, which leads to the limitation of water storage capacity. This limitation is particularly obvious in areas that need to cope with long-term drought or large water demand. For example, some water storage and water conservation measures for single trees, such as the method of using water-retaining buckets and water-retaining agents, although they help the survival of trees to a certain extent, their water storage capacity and water retention duration are limited, and it is difficult to cope with long-term drought. 2. The implementation cost of some water storage and water conservation technologies is high, especially in some economically underdeveloped or resource-limited areas, the promotion and application of these technologies may be limited by funding shortages. 3. Some water storage and water conservation technologies require a lot of energy support, which increases their operating costs. For example, in plain areas, the combination of soil transformation and mechanical irrigation systems is still used for drought resistance and water conservation, which requires the layout of more pipelines and water loss. Not only is it difficult to implement, but also the operation and maintenance are difficult and costly, and it is not suitable for large-scale or large-scale implementation and application. 4. Some water storage and water conservation technologies will have a negative impact on the environment. For example, the use of groundwater to irrigate the soil and the use of some inappropriate water sources such as mineral water and saline water may cause problems such as soil salinization, causing damage to the natural water cycle and ecological balance, and leading to the degradation of the ecosystem.

[0009] In addition, when storing and conserving water, the effect of water storage and water conservation may be affected by many factors, such as natural factors such as rainfall, evaporation, topography, soil type, and social factors such as human activities and management methods, which may affect the effect of water storage and water conservation technology. Therefore, in actual application, it is necessary to select and adjust according to the specific situation to achieve the best water storage and water conservation effect. However, most of the current water storage and water conservation technologies have certain limitations and cannot be promoted and applied on a large scale and in all regions.

[0010] Therefore, based on the limitations of existing water storage and conservation technologies in terms of water storage capacity, cost, environmental impact and effect stability, in order to overcome these limitations, it is necessary for us to provide a water conservation and drought resistance technology with high water storage capacity, low cost, low energy consumption and long-lasting water replenishment effect. Utility Model Content

[0011] The purpose of the utility model is to provide an automatic rainwater collection and replenishment system suitable for drought-resistant afforestation on flat land in arid areas. The automatic rainwater collection and replenishment system suitable for drought-resistant afforestation on flat land in arid areas has a simple overall structure and is easy to implement. It can effectively collect rainwater for long-term water storage and automatic water replenishment without adding electrical equipment, thereby reducing system energy consumption and cost. The system will not cause harm to the environment and can effectively ensure the water cycle and ecological balance of the original ecosystem in the afforestation area.

[0012] The purpose of the utility model is mainly achieved through the following technical solutions: an automatic rainwater collection and replenishment system suitable for drought-resistant afforestation on flat land in arid areas, including an afforestation area, in which a plurality of water collection areas for planting grass are arranged, the plurality of water collection areas are arranged at intervals and in a matrix, and the area between any four adjacent water collection areas forms a tree planting area; a water collection ditch is formed between any two adjacent water collection areas, and the water collection ditch is used to plant shrubs and guide water into the water collection area; a closed water storage structure is arranged under the soil of each water collection area All the water storage structures are interconnected; the top of the water storage structure forms an arc-shaped concave structure with a low middle part and high edges, and an anti-blocking seepage funnel is arranged in the middle of the arc-shaped concave structure, and the anti-blocking seepage funnel is connected to the inside of the water storage structure; each of the water storage structures is also provided with a plurality of self-priming ropes, and the plurality of self-priming ropes are arranged at intervals, wherein the self-priming ropes located on the upper part of the water storage structure are arranged vertically and extend into the soil of the water collection area above the water storage structure, and the self-priming ropes located around the water storage structure extend into the soil outside the water storage structure and are arranged horizontally.

[0013] Based on the above technical solution, interconnected transverse intercepting ditches and longitudinal intercepting ditches are arranged outside the afforestation area, which semi-enclose the afforestation area. The longitudinal intercepting ditches are connected with adjacent water collection areas or water collection ditches through a number of branch ditches.

[0014] Based on the above technical solution, the anti-blocking seepage funnel is provided with upper and lower filter layers, the lower filter layer is a non-woven fabric layer or a gauze layer, and the upper filter layer is a coarse sand layer or a gravel layer.

[0015] Based on the above technical solution, the self-priming rope is a hemp rope, a cotton rope, a straw rope or a sponge stick.

[0016] Based on the above technical solution, the distance between the self-priming ropes is 10 to 20 cm, the thickness is 1 to 5 mm, and the distance between the self-priming ropes and the ground of the water collection area is 25 to 35 cm.

[0017] Based on the above technical solution, the surface soil of the afforestation area is also covered with a modified layer, which includes an upper gravel layer and a lower mixed layer. The mixed layer is prepared by mixing a water retaining agent and soil in a volume ratio of 1:20.

[0018] Based on the above technical solution, a plurality of water retaining ridges are arranged at intervals in the water collecting ditch, and the interval between the water retaining ridges is 1.5 to 2.5 m.

[0019] Based on the above technical solution, the water collection area is a disc-shaped structure with a low middle and high surroundings, and an upwardly protruding annular earth ridge is arranged around the water collection area; the water collection ditch runs through the annular earth ridge to connect any two adjacent water collection areas, and the tree planting area is formed between any four adjacent water collection areas and the four water collection ditches connecting the four water collection areas.

[0020] Based on the above technical solution, the water collection area is a horizontal square structure, and the water collection ditch is formed by digging around the water collection area; multiple water collection ditches are arranged in a criss-cross manner and interconnected at the intersection; the intersection of the water collection ditches forms the tree planting area.

[0021] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0022] The utility model combines terrain transformation, water collection, water storage and water replenishment into one, utilizes terrain transformation to set the water storage structure under the soil, and regulates the area above the soil to form a water collection area, water collection ditch, intercepting ditch, etc., so as to evenly drain the rainwater to the afforestation area, and the excess rainwater enters the water storage structure through infiltration to store natural rainwater nearby, regulates the water distribution and improves the utilization rate of rainwater in time, and then utilizes the self-priming rope with capillary channel to automatically absorb and slowly release it into the soil, delays water loss while achieving a lasting and continuous water replenishment effect, and maintains the basic moisture content of the soil for a long time. The whole system is automatically completed without the need to arrange other mechanical equipment and facilities for assistance, has low implementation difficulty, and is suitable for large-scale promotion and application.

[0023] Utility Model BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, constitute a part of this application, and do not constitute a limitation of the embodiments of the present utility model. In the drawings:

[0025] Figure 1 1 is a schematic diagram of a system plane of an automatic rainwater collection and replenishment system suitable for drought-resistant afforestation on flat land in arid areas when the water collection area is circular in the embodiment;

[0026] Figure 2 3 is a longitudinal schematic diagram of a system of an automatic rainwater collection and replenishment system suitable for drought-resistant afforestation on flat land in arid areas when the water collection area is circular in the embodiment;

[0027] Figure 3 1 is a schematic diagram of a system plane of an automatic rainwater collection and replenishment system suitable for drought-resistant afforestation on flat land in arid areas when the water collection area is square in the embodiment;

[0028] Figure 43 is a longitudinal schematic diagram of a rainwater automatic collection and replenishment system suitable for drought-resistant afforestation on flat land in arid areas when the water collection area is square in the embodiment;

[0029] Figure 5 yes Figure 4 A magnified view of the structure at center.

[0030] The numbers in the figure represent:

[0031] 1. Afforestation area; 2. Water collection area; 3. Tree planting area; 4. Water collection ditch; 5. Water storage structure; 6. Anti-blocking seepage funnel; 7. Self-priming rope; 8. Horizontal intercepting ditch; 9. Vertical intercepting ditch; 10. Branch ditch; 11. Circular earth ridge. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solutions and advantages of the utility model more clearly understood, the utility model is further described in detail below in conjunction with embodiments and drawings. The schematic implementation manner of the utility model and its description are only used to explain the utility model and are not intended to limit the utility model.

[0033] like Figure 1-Figure 5 As shown, the first embodiment of the utility model discloses an automatic rainwater collection and replenishment system suitable for drought-resistant afforestation on flat land in arid areas, including an afforestation area 1, in which a plurality of water collection areas 2 for planting grass are arranged, the plurality of water collection areas 2 are arranged at intervals and in a matrix, and the area between any four adjacent water collection areas 2 forms a tree planting area 3; a water collection ditch 4 is formed between any two adjacent water collection areas 2, and the water collection ditch 4 is used to plant shrubs and guide water into the water collection area 2; a closed water storage structure 5 is provided under the soil of each water collection area 2, and all water collection areas 2 are connected to the water collection area 2. The water storage structures 5 are interconnected; the top of the water storage structure 5 forms an arc-shaped concave structure with a low middle part and high edges, and an anti-blocking seepage funnel 6 is arranged in the middle of the arc-shaped concave structure, and the anti-blocking seepage funnel 6 is connected to the inside of the water storage structure 5; each of the water storage structures 5 is also provided with a plurality of self-priming ropes 7, and the plurality of self-priming ropes 7 are arranged at intervals, wherein the self-priming rope 7 located on the upper part of the water storage structure 5 is vertically arranged and extends into the soil of the water collection area 2 above the water storage structure 5, and the self-priming ropes 7 located around the water storage structure 5 extend into the soil outside the water storage structure 5 and are arranged horizontally.

[0034] In the prior art, in some flat areas such as plains, when conserving water and resisting drought, a combination of soil modification and water conservation + ground irrigation system is often used. Soil modification requires the use of a large amount of water-retaining agents, etc., and requires a lot of manual execution and implementation. At the same time, the irrigation system not only requires the laying of more pipelines for support, but also requires the use of more water resources and control equipment, personnel, etc., which is not only time-consuming and labor-intensive, but also difficult and costly to implement, and the subsequent operation and maintenance is also very troublesome.

[0035] Based on this, this embodiment can collect excess rainwater into the water storage structure 5 by forming a water collection area 2 and a water collection ditch 4 in the afforestation area 1, and the water collection ditch 5 can ensure that all water collection areas 2 can obtain effective and uniform water collection effects. At the same time, the stored rainwater is adsorbed to the soil around the self-priming rope 7 under the action of the self-priming rope 7 with a capillary channel, so that the rainwater is automatically, continuously and durably adsorbed into the water collection area 2 and the surrounding soil for water replenishment, and the water replenishment speed is relatively slow, which can maintain the basic moisture content of the soil for a long time, ensuring sustainability while also meeting the basic water needs of plants in the afforestation area 1, and thus there is no need for other energy-consuming equipment such as water extraction and irrigation, thereby reducing the energy consumption and cost of the system. The structure is simple and easy to implement during application, which can also reduce the difficulty of implementation, and can better adapt to the use needs of different regions, and is suitable for promotion and application on a large scale.

[0036] After the implementation is completed, grass can be planted in the watershed area 2. The grass has a long root system, a large coverage area, and low survival requirements, which can largely prevent soil erosion in the watershed area 2; and trees can be planted in the tree planting area 3. The trees are tall, with a large branching area on the upper part of the trunk and lush branches and leaves. They can reduce the direct sunlight on the afforestation area 1 and reduce water loss in the vegetation and water storage structure 5 in the afforestation area 1, thereby further improving the drought resistance effect; and shrubs can be planted in the watershed ditch 4. They are woody plants without obvious trunks. The plants are generally short and have horizontal branches and trunks growing from near the ground, which can maximize the coverage of the ground area. The shrubs are cold-resistant, drought-resistant, and barren-resistant, and are also easy to afforest.

[0037] In this way, when the system is implemented, the corresponding plants can be planted in the corresponding areas to carry out flat land afforestation. This embodiment collects and stores rainwater through water collection and storage, and then slowly releases it into the soil, thereby delaying water loss, extending the plant growth period, and helping plants to successfully survive the dry and hot season, providing an implementation basis and strong guarantee for flat land afforestation.

[0038] In specific implementation, the water storage structure 5 can be a directly formed closed box structure, such as a water storage tank; it can also be formed by excavation in the afforestation area 1, such as a water reservoir formed by digging down, etc. This embodiment does not impose specific restrictions on the specific shape, structure and formation method of the water storage structure, and technical personnel in this field can choose according to specific needs.

[0039] Continue reading Figure 1 , Figure 3 A connected transverse intercepting ditch 8 and a longitudinal intercepting ditch 9 are also provided outside the afforestation area 1. The transverse intercepting ditch 8 and the longitudinal intercepting ditch 9 semi-enclose the afforestation area 1. The longitudinal intercepting ditch 8 is connected with the adjacent water collection area 2 or water collection ditch 4 through a plurality of branch ditches 10.

[0040] In order to prevent mud from entering the water storage structure 5 with rainwater and causing blockage therein, or affecting the water absorption effect of the self-priming rope 7, the anti-blocking seepage funnel 6 is provided with upper and lower filter layers, the lower filter layer is a non-woven fabric layer or a gauze layer, and the upper filter layer is a coarse sand layer or a gravel layer. Specifically, the thickness of the upper filter layer is 5 to 10 cm.

[0041] As a specific implementation, a plurality of anti-blocking seepage funnels 6 may be evenly spaced to increase the water collection rate, while also avoiding the problem of a single anti-blocking seepage funnel 6 being unable to collect water after being blocked.

[0042] In the specific implementation process, the self-priming rope 7 is a rope-shaped object with a capillary channel. Through the capillary channel inside it, the water source in the closed box can be slowly absorbed and spread along its length, so that the water source can be automatically absorbed into the soil in the area where it is located, and the surrounding soil is slowly released. At the same time, the amount of water replenishment is controllable and small, and a long-term water replenishment effect can be achieved. Specifically, the self-priming rope 7 is a hemp rope, a cotton rope, a straw rope or a sponge stick.

[0043] As a specific implementation, the self-priming ropes 7 are spaced 10 to 20 cm apart from each other, have a thickness of 1 to 5 mm, and are 25 to 35 cm away from the ground of the water collection area 2 .

[0044] In the specific implementation process, the surface soil of the afforestation area 1 is also covered with a transformation layer, which includes an upper gravel layer and a lower mixed layer, and the mixed layer is made by mixing a water retaining agent and soil at a volume ratio of 1:20. After the transformation, the soil in the afforestation area 1 can not only better avoid soil erosion, but also better preserve water and reduce the rate of water loss. Specifically, the gravel layer covers a thickness of 1 to 2 cm, preferably 1 cm.

[0045] In the specific implementation process, a plurality of water-blocking ridges (not shown in the figure) are arranged at intervals in the water-collecting ditch 4, and the interval between the water-blocking ridges is 1.5 to 2.5 meters. The water-blocking ridges are arranged horizontally in the water-collecting ditch 4, and the overall height is lower than the depth of the water-collecting ditch 4. Therefore, when water is collected in the water-collecting ditch 4, the water-blocking ridges can block the flow of rainwater, reduce the flow rate, and increase the retention time in the water-collecting ditch 4, thereby ensuring that more rainwater can enter the water-collecting area 2 and be stored in the water storage structure 5, thereby increasing the water collection capacity of the water storage structure 5 each time.

[0046] like Figure 1 , Figure 2As shown, the water collection area 2 is a disc-shaped structure which is low in the middle and high around. An upwardly protruding annular earth ridge 11 is arranged around the water collection area 2; the water collection ditch 4 runs through the annular earth ridge 11 to connect any two adjacent water collection areas 2, and the tree planting area 3 is formed between any four adjacent water collection areas 2 and the four water collection ditches 4 connecting the four water collection areas 2.

[0047] As one of the specific implementation methods of the water collection area 2, the water collection area 2 is set to a disc-shaped structure with a low middle and high surroundings, which can better guide rainwater to the middle of the water collection area 2 and store it in the water storage structure 5 through the anti-blocking seepage funnel 6. Connecting all water collection areas 2 through the water collection ditch 4 can also facilitate rainwater to flow evenly in the water collection area 2, ensuring that the water storage structure 5 under all water collection areas 2 can collect full rainwater.

[0048] like Figure 3 , Figure 4 As shown, the water collection area 2 is a horizontal square structure, and the water collection ditch 4 is formed by digging around the water collection area 2; multiple water collection ditches 4 are arranged in a criss-cross manner and interconnected at the intersection; the intersection of the water collection ditches 4 forms the tree planting area 3.

[0049] As a second specific implementation method of the water collection area 2, the water collection ditches 4 are arranged in a criss-cross manner and interconnected at the intersection. The area between the water collection ditches 4 can form a square water collection area at the ground level. This is more convenient to implement, and the rainwater flows more smoothly and evenly. The horizontal square water collection area does not need to consider the ground height problem in the first implementation method.

[0050] The above is the entire content of the rainwater automatic collection and replenishment system suitable for drought-resistant afforestation on flat land in arid areas. The second embodiment of the utility model is based on the system and also provides an implementation method for automatic collection and replenishment of rainwater suitable for drought-resistant afforestation on flat land in arid areas, which includes the following steps:

[0051] S1 uses flat land as the afforestation area 1, places a water storage structure 5 in the afforestation area 1 or excavates to form the water storage structure 5, the depth of the water storage structure is 0.5 to 1m, and multiple water storage structures 5 are connected through pipelines;

[0052] In this step, for areas with little ground soil or that are not suitable for direct afforestation, such as slag accumulation areas, saline-alkali soil areas, etc., it may not be possible to directly afforest. In this case, a water storage structure 5 can be placed to carry out fill afforestation. The water storage structure 5 can be set to any shape such as a circular or square structure as needed, and can be placed directly in the afforestation area 1. When the soil requirements meet afforestation requirements, the water storage structure 5 can be directly formed by underground excavation, such as a sunken water tank.

[0053] S2 A self-priming rope 7 is installed on and around each of the water storage structures 5, and a portion of the self-priming rope 7 extends to the water storage structure 5, wherein the self-priming ropes 7 are spaced 10 to 20 cm apart from each other, and the thickness is 1 to 5 mm. The portion of the self-priming rope 7 extending from the water storage structure 5 is reinforced, so that the self-priming rope 7 extending from the upper part of the water storage structure 5 is arranged vertically, and the self-priming rope 7 extending from the surrounding of the water storage structure 5 is arranged horizontally;

[0054] In this step, in order to ensure that the self-priming rope 7 can maintain its required vertical or horizontal state during the subsequent soil backfilling, it is necessary to maintain its state to reduce the need for equipment support during the subsequent soil backfilling and reduce the difficulty of implementation. The reinforcement treatment of this embodiment is to reinforce the self-priming rope 7 to keep it in the required state. Specifically, the reinforcement treatment can be that each self-priming rope 7 is bundled and wound with a columnar support to form an integral structure, and the columnar support is supported to maintain the current required state. The columnar support can be a wooden stick, a degradable plastic stick, etc. One end of the columnar support can be connected to the outside of the water storage structure by bonding to play a better reinforcement and fixing role.

[0055] S3 backfills the soil to the afforestation area 1 to cover all the water storage structures 5 to the designed soil thickness. When backfilling, ensure that all the self-priming ropes 7 are in the set state, and the self-priming ropes 7 extending from the upper part of the water storage structure 5 are 25 to 35 cm away from the backfill soil surface. After the backfilling is completed, the backfill area is leveled;

[0056] S4 performs surface treatment on the backfill area, treating the area above each water storage structure 5 into a water collection area 2 for planting grass, wherein a plurality of water collection areas 2 are arranged at intervals and in a matrix, and a water collection ditch 4 is excavated between any two adjacent water collection areas 2, and the water collection ditch 4 is used for planting shrubs and guiding water into the water collection area 2;

[0057] in,

[0058] The water collection area 2 is regulated into a disc-shaped structure with a low middle and high surroundings, and the radius of the disc-shaped structure is 1 to 1.5 m. An upwardly protruding annular earth ridge 11 is arranged around the water collection area, and the cross section of the annular earth ridge 11 is trapezoidal, and the annular earth ridge 11 is 25 to 35 cm wide and 25 to 35 cm deep, and the slope ratio is 1:0.5 to 1:1; the water collection ditch 4 runs through the annular earth ridge 11 to connect any two adjacent water collection areas 2, and an arbor planting area 3 is formed between any four adjacent water collection areas 2 and the four water collection ditches 4 connecting the four water collection areas 2;

[0059] or,

[0060] The water collection area 2 is regulated into a horizontal square structure, and the water collection ditch 4 is formed by digging around the water collection area 2. The cross section of the water collection ditch 4 is butterfly-shaped, the water collection ditch is 25-35 cm wide and 25-35 cm deep. Each water collection ditch 4 is provided with a water retaining ridge at intervals of 1.5-2.5 m. The plurality of water collection ditches 4 are arranged in a crisscross manner and are interconnected at the intersections, and the intersections of the water collection ditches 4 form an arbor planting area 3;

[0061] S5 performs soil transformation on the upper soil cover transformation layer of the afforestation area 1, wherein the transformation layer includes an upper gravel layer and a lower mixed layer, wherein the mixed layer is prepared by mixing a water retaining agent and soil at a volume ratio of 1:20, wherein the gravel layer has a thickness of 0.5 to 2 cm, and the mixed layer has a thickness of 25 to 35 cm;

[0062] S6 is located at the top of the afforestation area 1 to dig a horizontal intercepting ditch 8, and at the left and right sides of the afforestation area to dig a longitudinal intercepting ditch 9, the longitudinal intercepting ditch 9 is connected with the horizontal intercepting ditch 8, the longitudinal intercepting ditch 9 is 30-50cm wide and 20-30cm deep, and a branch ditch is dug simultaneously, the branch ditch connects the longitudinal intercepting ditch with the adjacent water collection area or water collection ditch, the width of the branch ditch is 20-30cm, and the implementation of water conservation and drought resistance is completed.

[0063] The overall implementation steps of this method are simple and easy to implement. It can effectively collect and store rainwater, and can continuously and automatically slowly replenish water in the soil, thereby maintaining the basic moisture content of the soil for a long time. The subsequent water collection, storage, and replenishment are all completed automatically without the need to arrange other mechanical equipment and facilities for assistance. The implementation difficulty is low, which reduces energy consumption, carbon emissions and water costs in the implementation of ecological restoration, and is suitable for large-scale promotion and application.

[0064] The specific implementation methods described above further illustrate the purpose, technical solutions and beneficial effects of the utility model in detail. It should be understood that the above description is only the specific implementation method of the utility model and is not used to limit the protection scope of the utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the protection scope of the utility model.

Claims

1. An automatic rainwater collection and replenishment system suitable for drought-resistant afforestation on flat land in arid areas, characterized in that: It includes a forestation area, in which a plurality of water collection areas for planting grass are arranged, the plurality of water collection areas are arranged at intervals and in a matrix, and the area between any four adjacent water collection areas forms a tree planting area; A water collection ditch is formed between any two adjacent water collection areas, and the water collection ditch is used to plant shrubs and guide water into the water collection area; A closed water storage structure is provided under the soil of each water collection area, and all the water storage structures are interconnected; The top of the water storage structure forms an arc-shaped concave structure with a low middle part and high edges, and an anti-blocking water seepage funnel is arranged in the middle of the arc-shaped concave structure, and the anti-blocking water seepage funnel is connected to the inside of the water storage structure; Each of the water storage structures is also provided with a plurality of self-priming ropes, which are arranged at intervals. The self-priming ropes located on the upper part of the water storage structure are arranged vertically and extend into the soil of the water collection area above the water storage structure, and the self-priming ropes located around the water storage structure extend into the soil outside the water storage structure and are arranged horizontally.

2. The automatic rainwater collection and replenishment system according to claim 1 is characterized in that: Connected transverse intercepting ditches and longitudinal intercepting ditches are also arranged outside the afforestation area, and the transverse intercepting ditches and longitudinal intercepting ditches semi-enclose the afforestation area. The longitudinal intercepting ditches are connected with adjacent water collection areas or water collection ditches through a plurality of branch ditches.

3. The automatic rainwater collection and replenishment system according to claim 1 is characterized in that: The anti-blocking seepage funnel is provided with an upper and lower filter layer, wherein the lower filter layer is a non-woven fabric layer or a gauze layer, and the upper filter layer is a coarse sand layer or a crushed stone layer.

4. The automatic rainwater collection and replenishment system according to claim 1 is characterized in that: The self-priming rope is a hemp rope, a cotton rope, a straw rope or a sponge stick.

5. The automatic rainwater collection and replenishment system according to claim 1 is characterized in that: The distance between the self-priming ropes is 10 to 20 cm, the thickness is 1 to 5 mm, and the distance between the self-priming ropes and the ground of the water collection area is 25 to 35 cm.

6. The automatic rainwater collection and replenishment system according to claim 1, characterized in that: A plurality of water retaining ridges are arranged at intervals in the water collecting ditch, and the interval between the water retaining ridges is 1.5 to 2.5 m.

7. The automatic rainwater collection and replenishment system according to any one of claims 1 to 6, characterized in that: The water collection area is a disc-shaped structure with a low middle and high surroundings, and an upwardly protruding annular earth ridge is arranged around the water collection area; The water collection ditch penetrates the annular earth ridge to connect any two adjacent water collection areas. The tree planting area is formed between any four adjacent water collection areas and the four water collection ditches connecting the four water collection areas.

8. The automatic rainwater collection and replenishment system according to any one of claims 1 to 6, characterized in that: The water collection area is a horizontal square structure, and the surrounding areas of the water collection area are dug down to form the water collection ditch; The plurality of water collecting ditches are arranged in a crisscross manner and are interconnected at the intersections; The intersection of the water collection ditches forms the tree planting area.

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