A degradable tree transplanting and planting device

Abstract

The present invention relates to a degradable tree transplanting and planting device, comprising a circularly arranged wooden board, a water storage groove, a water permeable pipe, and a water-retaining matrix block, a water permeable pipe filter screen is arranged between the water storage groove and the water permeable pipe, the water permeable pipe comprises a pipe wall, a spring frame and a water permeable window, the water permeable window is a porous water permeable structure, a nutrient matrix layer is arranged in the outer area of ​​the water permeable pipe between the wooden board and the water-retaining matrix block, the outermost layer of the nutrient matrix layer is coated with a polylactic acid coating film, the outer layer of the water-retaining matrix block is coated with a polycaprolactone matrix film, the water permeable pipe and the polycaprolactone matrix film have a complete degradation time of about 1 year, and the polylactic acid coating film has a complete degradation time of about 100 days. The present invention combines the nutrient matrix with water permeability and water retention, ensures the nutrient and water supply of the underground part of the trees after transplanting in arid and desertified areas, and improves the transplant survival rate.

Description

Technical Field

[0001] The invention relates to the technical field of tree transplanting devices, in particular to a degradable tree transplanting and planting device, specifically a planting container for improving the survival rate of trees transplanted in arid and desertified areas. Background Art

[0002] Planting is one of the most important and effective means of desertification control in arid areas, and plays a very important role in preventing wind and fixing sand, improving the desert environment, etc. However, due to the dry climate, high evaporation and poor soil in desertified areas, it is difficult for trees to survive after transplantation and difficult to maintain them in the later stage, and ecological greening work faces great difficulties. Summary of the invention

[0003] The purpose of the present invention is to provide a degradable tree transplanting and planting device for desertified areas, which can efficiently utilize precipitation resources, integrate water conservation and nutrient supply functions, and improve the survival rate of trees after transplanting.

[0004] To achieve the above-mentioned purpose, the present invention provides a degradable tree transplanting and planting device, comprising a wooden board arranged in a ring shape, a water storage groove arranged at the bottom of the inner ring of the wooden board, a plurality of permeable pipes vertically arranged at the bottom of the water storage groove, and a water-retaining matrix block arranged at the bottom of the permeable pipe, a permeable pipe filter is arranged between the water storage groove and the permeable pipe, the permeable pipe comprises a pipe wall, a spring frame arranged in the pipe wall and a permeable window arranged on the pipe wall, the permeable window is a porous permeable structure, a nutrient matrix layer is arranged at the outer area of ​​the permeable pipe between the wooden board and the water-retaining matrix block, the outermost layer of the nutrient matrix layer is coated with a polylactic acid coating film, the outer layer of the water-retaining matrix block is coated with a polycaprolactone matrix film, the complete degradation time of the permeable pipe and the polycaprolactone matrix film is about 1 year, and the complete degradation time of the polylactic acid coating film is about 100 days.

[0005] Preferably, the water-permeable pipe filter is made of stainless steel, and the filter pore size is 0.8 mm.

[0006] Preferably, the water storage groove has a depth of 2 cm and a width of 3 cm.

[0007] Preferably, the water-permeable pipe has a length of 80 cm and a diameter of 3 cm.

[0008] Preferably, the width of the water-permeable windows is 1 cm, and one is provided every 5 cm.

[0009] Preferably, the nutrient matrix layer comprises 70% by mass of local soil, 15% of peat soil, 10% of decomposed straw, 2% of ammonium nitrate, 1% of superphosphate, and 2% of potassium oxide.

[0010] Preferably, the length of the wooden board is 40 cm, the outer diameter is 820 cm, the surface of the wooden board is coated with a waterproof coating, and the wooden board is tilted inward as a whole.

[0011] Based on the above technical solution, the advantages of the present invention are:

[0012] The degradable tree transplanting and planting device of the present invention combines a nutrient matrix with a water-permeable and water-retaining module through the application of degradable materials, thereby ensuring the supply of nutrients and water to the underground part of trees after transplanting in arid and desertified areas, and improving the survival rate of transplanting. When used, firstly, a suitable planting site is selected to dig a tree hole, and an assembled planting container including a water-retaining matrix block and a water-permeable pipe is placed. After the trees to be planted are arranged, the nutrient matrix is ​​filled around the tree body. The composition of the nutrient matrix can be changed according to the different needs of different plant species, providing the most direct and most suitable nutrient supply in the early stage of plant planting. Finally, the uppermost wooden board, the water storage groove and the fixed water-permeable pipe of the planting container are assembled. When there is sufficient precipitation outside or artificial irrigation, water will flow into the water-retaining matrix block at the bottom of the container through the water-permeable pipe. At the same time, the excess water in the soil around the water-permeable pipe will also enter the water-retaining matrix block through the water-permeable window, and supply water to the root system during the later growth of the plant. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0014] Figure 1 This is a schematic diagram of the structure of a tree transplanting and planting device;

[0015] Figure 2 It is a cross-sectional schematic diagram of a tree transplanting and planting device;

[0016] Figure 3 This is a schematic diagram of the permeable pipe structure. DETAILED DESCRIPTION

[0017] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments.

[0018] The present invention provides a degradable tree transplanting and planting device, such as Figure 1 to Figure 3 As shown, a preferred embodiment of the present invention is shown.

[0019] This device is mainly composed of two parts: the water-permeable part and the water-retaining part. The water-permeable part is divided into two layers, the inner and outer layers. The lowest part of the inner layer has a certain height difference with the water storage groove. When the precipitation level exceeds the limit, the excess water will flow down the water storage groove from the water-permeable pipe; at the same time, the external precipitation will flow along the outer wooden board and the water storage groove to the water-permeable pipe. The water-permeable window on the pipe wall is a porous structure, which allows excess water to enter the water-permeable pipe from the water-permeable window when the surrounding soil matrix is ​​saturated with water. The permeable pipe is filled with nutrient matrix to ensure the supply of nutrients for the plant in the early stage of planting. After the water enters the permeable pipe, it will be effectively stored in the water-retaining matrix block composed of water-absorbing resin and other materials, providing water supply during the later growth of the plant.

[0020] Specifically, Figure 1 , Figure 2 As shown, the tree transplanting and planting device includes a wooden board 11 arranged in a ring shape, a water storage groove 2 arranged at the bottom of the inner ring of the wooden board 11, a plurality of permeable pipes 3 vertically arranged at the bottom of the water storage groove 2, and a water-retaining matrix block 9 arranged at the bottom of the permeable pipe 3. A permeable pipe filter 1 is provided between the water storage groove 2 and the permeable pipe 3.

[0021] The water-permeable pipe filter 1 is made of stainless steel, and the filter mesh aperture is 0.8 mm, which can prevent impurities in the water flow from entering the water-permeable pipe 3. The water storage groove 2 is 2 cm deep and 3 cm wide, and is connected to the outlet of the water-permeable pipe 3 at the bottom, so that the water flow can flow into the water-permeable pipe 3 along the groove. The wooden board 11 is 40 cm long and surrounds the whole to form a ring structure with an outer diameter of 820 cm. The surface is sprayed with a waterproof coating, and the whole is tilted inward to facilitate the water flow to flow inward, and the lowest tilt is connected to the water storage groove 2.

[0022] Preferably, the entire planting container is provided with 8 permeable pipes 3, the upper pipe opening is connected to the water storage groove 2, and is provided with a permeable pipe filter 1, and the lower pipe opening is connected to the water-retaining matrix block 9. The permeable pipe 3 is 80 cm long and 3 cm in diameter.

[0023] like Figure 3 As shown, the water-permeable pipe 3 includes a pipe wall 6, a spring frame 5 arranged in the pipe wall 6, and a water-permeable window 4 arranged on the pipe wall 6. The water-permeable window 4 is a porous water-permeable structure with a width of 1 cm and one arranged every 5 cm. The spring frame 5 is made of polycaprolactone material with a diameter of 3 mm, which plays a supporting role for the water-permeable pipe 3. The pipe wall 6 is composed of polycaprolactone material, which can be naturally degraded in the later stage of plant growth and will not cause pollution to the environment. The complete degradation time is about 1 year.

[0024] A nutrient matrix layer 7 is provided outside the water-permeable pipe 3 between the wooden board 11 and the water-retaining matrix block 9 . The outermost layer of the nutrient matrix layer 7 is coated with a polylactic acid coating film 8 . The outer layer of the water-retaining matrix block 9 is coated with a polycaprolactone matrix film 10 .

[0025] Preferably, the nutrient matrix layer 7 includes 70% by weight of local soil, 15% of peat soil, 10% of decomposed straw, 2% of ammonium nitrate, 1% of superphosphate, and 2% of potassium oxide. The composition of the matrix can also be fine-tuned according to the different nutritional requirements of different plants. The polylactic acid coating film 8 is coated on the outermost layer of the nutrient matrix 7. In the early stage of planting, the nutrients in the matrix can be concentrated and not dispersed, and the nutrients can be concentratedly supplied to the root system of the plant; and the material can be naturally degraded as the plant grows, and can be completely degraded within 100 days.

[0026] The permeable part of the planting device is mainly composed of wooden boards, water storage grooves and permeable pipes. The height difference between the lowest point of the inner layer of the permeable part and the water storage groove is 3 cm. When the water level of the inner layer exceeds 3 cm, the excess water will flow into the water storage groove and flow down from the permeable pipe; when there is sufficient precipitation outside or artificial irrigation, the water will flow along the outer wooden board through the water storage groove to the permeable pipe. At the same time, excess water in the soil around the permeable pipe will also enter the permeable pipe through the permeable window. The lower end of the permeable pipe is connected to a water-retaining matrix block, and the water enters the water-retaining matrix block for storage, which collects water around the tree to the greatest extent and supplies water to the root system during the later growth of the plant.

[0027] The tree transplanting and planting device is filled with a nutrient matrix composed of local soil, peat soil, decomposed straw, ammonium nitrate, superphosphate, potassium oxide, etc., which can provide sufficient nutrient supply to plants in the early stage of plant transplanting and planting to meet the needs of plant growth. The water-retaining matrix at the bottom of the container is added with water-absorbing resin, which can effectively store excess water when the water is sufficient. The plant roots can penetrate the film of the water-retaining matrix block during growth and absorb water and nutrients from it.

[0028] At the same time, except for the nutrient matrix and the water-retaining matrix, the materials used for the other components of the container, the water-permeable pipe 3, the polylactic acid coating film, and the polycaprolactone matrix film, are all environmentally friendly and degradable materials. The water-permeable pipe 3 and the polycaprolactone matrix film 10 can be completely degraded in about 1 year to match the growth of the plant, and the polylactic acid coating film 8 can be completely degraded in about 100 days to match the root system development. It can be naturally degraded with the growth of the plant and the development of the root system, and will not cause any harm to the soil environment.

[0029] The raw materials for the production of polylactic acid come from agricultural carbohydrate-rich materials such as corn, beets, potatoes, and yams. It can be continuously regenerated and has a good degradation rate. During the application process, under the action of factors such as soil microorganisms and moisture, the polylactic acid chain breaks and becomes lactic acid molecules, which then undergo oxidative decomposition and can be decomposed into CO2 and H2O in about 3 months. Therefore, in the present invention, it is necessary to select a polylactic acid coating film 8 with a complete degradation time of about 100 days to cooperate with root development.

[0030] Polycaprolactone is a semi-crystalline polymer with excellent biodegradability and can be degraded by the microorganisms (bacteria and fungi) in the soil. The degradation of this material in the application process is mainly divided into two stages: in the first stage, the ester bond hydrolysis breaks, and the molecular weight begins to continuously decline, but the change of shape and the loss of quality will not occur. In the second stage, along with the continuous decline of molecular weight, macromolecule becomes small molecule, and the material begins to become fragments and loses weight, merges in the surrounding soil, and finally decomposes into CO2 and H2O. Under suitable temperature, moisture and microbial conditions, the polycaprolactone material can reach 95% in the time of 6 to 12 months, and is completely degraded in about 1 year. Therefore, it is necessary to select the permeable pipe 3 and the polycaprolactone matrix film 10 of about 1 year to coordinate the growth of plants among the present invention.

[0031] In order to further illustrate the technical effect of the present invention, the device was used in an actual project to test the use effect. Four trees and shrubs to be planted in the same area, namely, Sophora japonica, Elm, Pearlberry, and Lilac, were planted in a certain proportion using the transplanting and planting container. After the planting was completed, the growth was observed and recorded twice a month. By comparison, the plants using the transplanting and planting containers had fuller buds after sprouting, and the leaves and new branches grew better; in the later growth, the overall average tree vigor of the plants using the transplanting and planting containers was more than 15% higher than that of the directly transplanted plants, and the transplanting survival rate was 100%. It can be seen that the transplanting and planting container of the present invention can promote the growth recovery of the root system of newly planted trees and the germination and growth of the aboveground branches and leaves, which is conducive to the recovery of tree vigor.

[0032] The degradable tree transplanting and planting device of the present invention combines a nutrient matrix with a water-permeable and water-retaining module through the application of degradable materials, thereby ensuring the supply of nutrients and water to the underground part of trees after transplanting in arid and desertified areas. When used, firstly, a suitable planting site is selected to dig a tree hole, and an assembled planting container including a water-retaining matrix block and a water-permeable pipe is placed. After the trees to be planted are arranged, the nutrient matrix is ​​filled around the tree body. The composition of the nutrient matrix can be changed according to the different needs of different plant species, providing the most direct and most suitable nutrient supply in the early stage of plant planting. Finally, the uppermost wooden board, the water storage groove and the fixed water-permeable pipe of the planting container are assembled. When there is sufficient precipitation outside or artificial irrigation, water will flow into the water-retaining matrix block at the bottom of the container through the water-permeable pipe. At the same time, the excess water in the soil around the water-permeable pipe will also enter the water-retaining matrix block through the water-permeable window, and in the later growth of the plant, water will be supplied to the root system, thereby improving the survival rate of transplantation.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A degradable tree transplanting and planting device, characterized in that: The invention comprises a wooden board (11) arranged in an annular shape, a water storage groove (2) arranged at the bottom of the inner ring of the wooden board (11), a plurality of water-permeable pipes (3) arranged vertically at the bottom of the water storage groove (2), and a water-retaining matrix block (9) arranged at the bottom of the water-permeable pipe (3); a water-permeable pipe filter (1) is arranged between the water storage groove (2) and the water-permeable pipe (3); the water-permeable pipe (3) comprises a pipe wall (6), a spring frame (5) arranged in the pipe wall (6), and a water-permeable window (4) arranged on the pipe wall (6); the water-permeable window (4) is a porous water-permeable structure; the wooden board (11) and the water-retaining matrix block (9) are connected to the water-permeable pipe (3); 9), a nutrient matrix layer (7) is provided in the outer area of ​​the water-permeable pipe (3) between the water-retaining matrix blocks (9), wherein the nutrient matrix layer (7) comprises 70% by weight of local soil, 15% of peat soil, 10% of decomposed straw, 2% of ammonium nitrate, 1% of superphosphate, and 2% of potassium oxide; the outermost layer of the nutrient matrix layer (7) is coated with a polylactic acid coating film (8), and the outer layer of the water-retaining matrix block (9) is coated with a polycaprolactone matrix film (10); the complete degradation time of the water-permeable pipe (3) and the polycaprolactone matrix film (10) is about 1 year, and the complete degradation time of the polylactic acid coating film (8) is about 100 days.

2. The tree transplanting and planting device according to claim 1, characterized in that: The water-permeable pipe filter (1) is made of stainless steel, and the filter pore size is 0.8 mm.

3. The tree transplanting and planting device according to claim 1, characterized in that: The water storage groove (2) has a depth of 2 cm and a width of 3 cm.

4. The tree transplanting and planting device according to claim 1, characterized in that: The water-permeable pipe (3) has a length of 80 cm and a diameter of 3 cm.

5. The tree transplanting and planting device according to claim 1, characterized in that: The width of the water-permeable windows (4) is 1 cm, and one is provided every 5 cm.

6. The tree transplanting and planting device according to claim 1, characterized in that: The length of the wooden board (11) is 40 cm and the outer diameter is 820 cm. The surface of the wooden board (11) is coated with a waterproof coating and is arranged to be tilted inwards as a whole.

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