Submerged plant community planting device for stony desertification riverbed

Abstract

The utility model discloses a submerged plant community planting device of a stony desertification riverbed, which comprises a fixation bed substrate and submerged plants, and the fixation bed substrate is fixed on the stony desertification riverbed through fixing pieces and ballast pebbles; the root of the submerged plant is wrapped with a clay ball, and the clay ball is fixed on the fixation bed substrate through a ballast sheet. According to the utility model, in the initial stage, the submerged plants are fixed on the substrate of the fixation bed through root systems and then gradually fixed into gaps of the pebbles on the periphery, so that the coverage rate of the submerged plants is increased, the recovery of the submerged plants is realized, and the water purification effect is exerted; and a single-cluster plant fixation bed matrix planting mode is adopted, so that the problem that a large-area matrix bed is damaged due to flushing of sudden flood, and a large-area submerged plant planting area is damaged and cannot be easily subjected to complementary planting is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of river and lake water ecological restoration, and in particular to a submerged plant community planting device for a rocky desertified riverbed. Background Art

[0002] At present, the ecological restoration of eutrophic rivers and lakes has received extensive attention. Among them, submerged plant communities, as pioneer plant communities in the restoration of aquatic systems, are an important part of the restoration of aquatic ecosystems. They have the functions of improving water quality, inhibiting the dissolution of sediment pollutants and the floating of sediments, increasing the supply of dissolved oxygen in water bodies, providing habitats for aquatic animals, maintaining the ecological balance of aquatic ecosystems, and improving the ecological landscape of water bodies. However, for some mountain rivers and waters with degraded habitats in rocky desertified riverbeds, due to factors such as fast river flow, severe scouring, and severe rocky desertification of riverbeds, it is difficult for plant roots to penetrate the riverbed for stable growth, resulting in a serious lack of submerged plants.

[0003] In the prior art, most of the domestic patents on submerged plant planting improve the base conditions by laying planting beds or planting soil at the bottom of the riverbed. For example, patent CN117502026A discloses an underwater protection planting device and method for submerged plant communities that are resistant to water disturbance. Submerged plants are planted on a planting matrix bed, and a plurality of microporous aeration disks are provided above the planting matrix bed. A plurality of barbed piles are provided below the planting matrix bed, and a plurality of upwardly inclined barb structures are provided around the barbed piles. This device for fixing the plant planting matrix bed with barbed piles is difficult to implement on a severely eroded rocky desertified riverbed. It is difficult to insert the barbed piles into a riverbed full of pebbles, and a large area of ​​the planting matrix bed is easily swept away by floods.

[0004] Patent CN108184558A discloses a method for fixing submerged plants in mountainous rivers, which uses a three-dimensional vegetation net as a way to improve the riverbed base, and enhances the anti-scouring ability of the bottom mud in the compartment through the three-dimensional vegetation net, thereby reducing the loss of the bottom mud matrix. However, this method is difficult to implement under rocky desertification riverbed conditions, and there is no condition to fill the silt in the three-dimensional vegetation net;

[0005] Patent CN115812472A discloses a plant carrier and planting method suitable for planting submerged plants in soilless areas. The base conditions for submerged plant growth are formed by using a composite three-dimensional net filled with basic fillers, and then microorganisms and oxygen releasers are arranged in the base carrier to promote the growth of microorganisms and plants. This method is suitable for rivers or lakes with slow flow rates, but not for water bodies in rocky desertified riverbed habitats with fast flow rates. Utility Model Content

[0006] In view of the deficiencies in the prior art, the utility model provides a submerged plant community planting device for a rocky desertified riverbed.

[0007] The utility model discloses a submerged plant community planting device for a rocky desertified riverbed, comprising:

[0008] A fixing bed matrix, wherein the fixing bed matrix is ​​fixed on the rocky desertification riverbed by fixing members and ballast pebbles;

[0009] A submerged plant, wherein the roots of the submerged plant are wrapped with a clay ball, and the clay ball is fixed on the fixing bed matrix through a ballast sheet.

[0010] As a further improvement of the utility model, the fixing bed matrix is ​​an equilateral triangle geotextile drainage mat;

[0011] The three corners of the geotextile drainage mat are fixedly mounted on the rocky desertification riverbed through the fixing members, and the three corners of the geotextile drainage mat are covered with the ballast pebbles;

[0012] A fixing part for fixing the clay ball is formed at the center of the geotextile drainage mat, and the clay ball with submerged plants is fixed on the fixing part through a ballast sheet, and a planting hole is excavated in the rocky desertified riverbed corresponding to the position of the fixing part.

[0013] As a further improvement of the present invention, the thickness of the geotextile drainage mat is not less than 10 mm.

[0014] As a further improvement of the utility model, the ballast sheet includes a first ballast ring and a ballast strip;

[0015] The roots of the submerged plants pass through the first ballast ring and are wrapped in the clay ball;

[0016] The three ballast strips are arranged on the outer circumference of the first ballast ring, and the extension direction of the three ballast strips is consistent with the three corners of the geotextile drainage mat; the ends of the three ballast strips are provided with a second ballast ring, and the three fixing parts pass through the three corners of the geotextile drainage mat and the second ballast rings of the three ballast strips in sequence from top to bottom, and are inserted into the gaps in the pebble riverbed of the rocky desertification riverbed.

[0017] As a further improvement of the present invention, the fixing member is an "η" type anchor.

[0018] As a further improvement of the present invention, the "η" type anchor is formed by bending 14# galvanized iron wire.

[0019] As a further improvement of the present invention, the thickness of the ballast sheet is not less than 0.2 mm, and the material of the ballast sheet is plastic.

[0020] As a further improvement of the utility model, the submerged plants include but are not limited to Potamogeton chinensis, Potamogeton crispus or cold-resistant dwarf Vallisneria truncatula.

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

[0022] The utility model can improve the growth adaptability and survival rate of submerged plants by adopting a combined planting method of a fixation bed matrix and clay balls. In the initial stage, the submerged plants are fixed on the fixation bed matrix through their roots, and then gradually fixed in the gaps of surrounding pebbles, thereby increasing the coverage rate of submerged plants, realizing the recovery of submerged vegetation, and playing a role in water purification.

[0023] The utility model adopts a single-cluster plant fixed bed matrix planting method, which avoids the problem of large-scale scouring and damage, and even the restoration and replanting after damage is simpler and more convenient; compared with the traditional method of setting up planting matrix beds over a large area, it reduces the risk of large-scale matrix bed damage caused by sudden flood scouring, thereby avoiding the problem of large-scale submerged plant planting areas being damaged and difficult to replant. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a plan view of a submerged plant community planting device for a rocky desertified riverbed disclosed in one embodiment of the utility model;

[0025] Figure 2 It is a side view of a submerged plant community planting device for a rocky desertified riverbed disclosed in one embodiment of the utility model;

[0026] Figure 3 A schematic diagram of a geotechnical drainage mat for a submerged plant community planting device in a rocky desertified riverbed disclosed in an embodiment of the utility model;

[0027] Figure 4 This is a schematic structural diagram of a ballast sheet of a submerged plant community planting device for a rocky desertified riverbed disclosed in an embodiment of the utility model;

[0028] Figure 5 This is a structural schematic diagram of a first ballast ring of a submerged plant community planting device for a rocky desertified riverbed disclosed in an embodiment of the utility model;

[0029] Figure 6 The present invention is a schematic structural diagram of a ballast strip of a submerged plant community planting device for a rocky desertified riverbed disclosed in an embodiment of the utility model.

[0030] In the figure:

[0031] 1. Fixation bed matrix; 2. Ballast sheet; 2-1. First ballast circle; 2-2. Ballast strip; 2-21. Second ballast circle; 3. "η" type anchor; 4. Clay ball; 5. Submerged plant; 6. Pebble riverbed; 7. Ballast pebbles. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0034] In the description of the present invention, it is also necessary to explain 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 a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The utility model is further described in detail below in conjunction with the accompanying drawings:

[0036] like Figure 1-2 As shown, a submerged plant community planting device for a rocky desertified riverbed provided by the utility model includes a fixing bed matrix 1, submerged plants 5, clay balls 4 and a ballast sheet 2: wherein the fixing bed matrix 1 is fixed on the rocky desertified riverbed by fixing parts and ballast pebbles 7; the roots of the submerged plants 5 are wrapped with clay balls 4, and the clay balls 4 are fixed on the fixing bed matrix 1 by the ballast sheet 2.

[0037] In this embodiment, by adopting the method of planting a fixing bed matrix 1 and a clay ball 4 together, the growth adaptability and survival rate of the submerged plants 5 can be improved. In the initial stage, the submerged plants 5 are fixed on the fixing bed matrix 1 through the root system, and then gradually fix to the gaps in the surrounding pebble riverbed 6, thereby increasing the coverage rate of the submerged plants, realizing the recovery of the submerged vegetation, and playing a role in water purification; by adopting a single-cluster plant fixing bed matrix planting method, the problem of large-scale erosion and damage is avoided, and even the restoration and replanting after damage is simpler and more convenient; compared with the traditional method of setting up a large-scale planting matrix bed, the risk of large-scale matrix bed damage due to sudden flood erosion is reduced, thereby avoiding the problem of large-scale submerged plant 5 planting area being damaged and difficult to replant.

[0038] Specific:

[0039] like Figure 1-3 As shown, in the above embodiment, preferably, the fixed bed matrix 1 is an equilateral triangle geotextile drainage mat; the three corners of the geotextile drainage mat are fixedly installed on the rocky desertified riverbed by fixing parts, and the three corners of the geotextile drainage mat are covered with ballast pebbles 7; a fixing part for fixing a clay ball 4 is formed in the center of the geotextile drainage mat, and the clay ball 4 with a submerged plant 5 is fixed on the fixing part by a ballast sheet 2, and a planting hole is excavated at the position of the rocky desertified riverbed corresponding to the fixing part; the ballast pebbles 7 in this embodiment can be composed of crushed stones produced after excavating the planting hole.

[0040] In the above embodiment, preferably, the side length of the geotextile drainage mat is 150 mm; the thickness of the geotextile drainage mat is not less than 10 mm.

[0041] like Figure 4-6 As shown, in the above embodiment, preferably, the ballast sheet 2 includes a first ballast ring 2-1 and ballast strips 2-2; wherein the three ballast strips 2-2 are arranged on the outer circumference of the first ballast ring 2-1, and the extension direction of the three ballast strips 2-2 is consistent with the direction of the three corners of the geotextile drainage mesh; the ends of the three ballast strips 2-2 are provided with a second ballast ring 2-21; when actually installed, the roots of the submerged plants 5 pass through the first ballast ring 2-1 and are wrapped in the clay ball 4; the three fixings pass through the three corners of the geotextile drainage mesh, the second ballast rings 2-21 of the three ballast strips 2-2 in sequence from top to bottom, and are inserted into the gap of the pebble riverbed 6 of the rocky desertified riverbed.

[0042] In the above embodiment, preferably, the thickness of the ballast sheet 2 is not less than 0.2 mm, and the material of the ballast sheet 2 is plastic material; the plastic material specifically includes PC material, PET material or PP material. In this embodiment, the outer diameter of the first ballast ring 2-1 is 40 mm, and the inner diameter is 30 mm; the length of the ballast strip 2-2 is 150 cm; the three ballast strips 2-2 and the first ballast ring 2-1 are hot-melt bonded to form a ballast sheet 2 for fixing the clay ball 4.

[0043] In the above embodiment, preferably, the size specifications of the first ballast ring 2-1 and the ballast strip 2-2 can be adjusted according to the sizes of the roots of different plants and different clay balls.

[0044] like Figure 2 As shown, in the above embodiment, preferably, the fixing member is an "η" type anchor 3, which is formed by bending a 14# galvanized iron wire with a length of 150 mm. The size of the "η" type anchor 3 in this embodiment is 100mm*40mm*10mm.

[0045] In the above embodiment, preferably, the clay ball 4 is provided with a slow-release fertilizer, a submerged plant root growth promoter gel and a coated microbial agent, wherein the submerged plant root growth promoter gel is prepared by mixing a gelling material such as polyvinyl alcohol or sodium alginate with a root growth promoter, such as ABT-1 rooting powder, indolebutyric acid I BA, cytokinin NAA and other plant growth regulators. This embodiment improves the submerged plant growth base habitat and nutrient growth promotion, enhances the submerged plant root reproduction and fixation conditions, and solves the problems of slow plant growth and difficulty in rooting and growth under the pebble riverbed substrate conditions.

[0046] In the above embodiment, preferably, the submerged plants 5 include but are not limited to Potamogeton chinensis, Water Chestnut or cold-resistant dwarf Vallisneria; the submerged plants 5 in this embodiment may also be selected from other submerged plants 5 with strong erosion resistance and well-developed root system.

[0047] The method of using this embodiment is as follows:

[0048] 1) Pass the roots of the submerged plant 5 seedlings through the first ballast ring 2-1 of the ballast sheet 2, and bury the roots in the clay ball 4;

[0049] 2) Place the clay ball 4 at the center of the equilateral triangle-shaped fixing bed matrix 1, and fix the second ballast ring 2-21 of the three ballast strips 2-2 on the ballast sheet 2 to the three corners of the equilateral triangle-shaped fixing bed matrix 1 through the "η"-shaped anchor nails 3;

[0050] 3) After the submerged plant 5 is planted with the clay ball 4 and the fixing bed matrix 1, a 200mm*200mm*50 planting hole is dug out at the planting point with a shovel, and the clay ball 4 is placed in the corresponding planting hole position;

[0051] 4) Insert three "η"-shaped anchors 3 into the gaps between the riverbed pebbles in the planting hole, and then use the pebbles shoveled out of the planting hole as ballast pebbles 7 to be ballasted onto the three corners of the fixing bed matrix 1.

[0052] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A submerged plant community planting device in a rocky desertified riverbed, characterized in that: include: A fixing bed matrix, wherein the fixing bed matrix is ​​fixed on the rocky desertification riverbed by fixing members and ballast pebbles; A submerged plant, wherein the roots of the submerged plant are wrapped with a clay ball, and the clay ball is fixed on the fixing bed matrix through a ballast sheet.

2. The submerged plant community planting device for rocky desertified riverbeds according to claim 1, characterized in that: The fixing bed matrix is ​​an equilateral triangle geotextile drainage mat; The three corners of the geotextile drainage mat are fixedly mounted on the rocky desertification riverbed through the fixing members, and the three corners of the geotextile drainage mat are covered with the ballast pebbles; A fixing part for fixing the clay ball is formed at the center of the geotextile drainage mat, and the clay ball with submerged plants is fixed on the fixing part through a ballast sheet, and a planting hole is excavated in the rocky desertified riverbed corresponding to the position of the fixing part.

3. The submerged plant community planting device for rocky desertified riverbeds according to claim 2, characterized in that: The thickness of the geotextile drainage mat is not less than 10 mm.

4. The submerged plant community planting device for rocky desertified riverbeds according to claim 2, characterized in that: The ballast sheet includes a first ballast ring and a ballast strip; The roots of the submerged plants pass through the first ballast ring and are wrapped in the clay ball; The three ballast strips are arranged on the outer circumference of the first ballast ring, and the extension direction of the three ballast strips is consistent with the three corners of the geotextile drainage mat; the ends of the three ballast strips are provided with a second ballast ring, and the three fixing parts pass through the three corners of the geotextile drainage mat and the second ballast rings of the three ballast strips in sequence from top to bottom, and are inserted into the gaps in the pebble riverbed of the rocky desertification riverbed.

5. The submerged plant community planting device for rocky desertified riverbeds according to any one of claims 1, 2 and 4, characterized in that: The fixing member is an "η" type anchor.

6. The submerged plant community planting device for rocky desertified riverbeds according to claim 5, characterized in that: The "η" type anchor is formed by bending 14# galvanized iron wire.

7. The submerged plant community planting device for rocky desertified riverbeds according to claim 1, characterized in that: The thickness of the ballast sheet is not less than 0.2 mm, and the material of the ballast sheet is plastic.

8. The submerged plant community planting device for rocky desertified riverbeds according to claim 1, characterized in that: The submerged plants include Potamogeton chinensis, Potamogeton crispus or cold-resistant dwarf Vallisneria truncatula.

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