Structure and method for rapidly recovering vegetation in karst mining area

Abstract

The invention discloses a structure for rapidly recovering vegetation in a karst mining area, which comprises a biological bag main body, and the biological bag main body comprises loofah sponge, a soil conditioner and a plant seed device. Compared with the prior art, the soil conditioner has the advantages that the loofah sponge is a container used for bearing the soil conditioner and plant seeds, the loofah sponge has good heat insulation performance, water absorption performance and air permeability due to the natural porous structure, soil water retention and plant rooting of natural soil are facilitated, and meanwhile, the loofah sponge has a certain adsorption effect on heavy metal in the soil; and 2, the loofah sponge is a natural renewable fiber material, is low in cost, can be naturally degraded, and does not cause pollution to the environment.

Description

Technical Field

[0001] The invention relates to the technical field of vegetation restoration in mining areas, and in particular to a structure and method for quickly restoring vegetation in karst mining areas. Background Art

[0002] The soil in karst mining areas is mostly distributed between rocky crevices. The soil is barren and has poor water retention capacity. Under sunlight, the rocks absorb heat during the day, causing the soil to be "baked", which further aggravates the evaporation of water in the soil, resulting in severe drought in the soil habitat of the karst mining areas. Open-pit mining directly destroys vegetation and soil, causing rocks to protrude, and precipitation directly forms surface runoff or infiltrates underground through cracks and fissures. The disorderly discharge of waste slag, waste liquid, and waste gas from mining destroys the site conditions of vegetation in the mining area, resulting in large areas of rock exposure in the mining area, forming mine desertification, which makes it difficult for plants to survive. If large-scale restoration operations are carried out, the corresponding cost will be too high and it will be difficult to achieve. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a structure and method for quickly restoring vegetation in a karst mining area in view of the deficiencies raised in the above-mentioned background technology.

[0004] In order to solve the above technical problems, the technical solution provided by the present invention is: a structure for quickly restoring vegetation in karst mining areas, which includes a biological bag main body, the biological bag main body includes a loofah, a soil conditioner and a plant seed setting, and the preparation steps of the biological bag main body are:

[0005] Step 1: Select evenly sized loofahs, use glycerol and water as solvents to dissolve the lignin in the loofahs;

[0006] Step 2: Cut the loofah with lignin dissolved in step 1 into 15cm sections, and organize every 6 sections into a flower-shaped container.

[0007] Step 3: Wrap a layer of degradable film on the outside of the container in step 2, and punch a plurality of holes on the outside of the degradable film.

[0008] Step 4: Add a mixture of soil conditioner and plant seeds with a total weight of 2kg to 2.5kg into each hole in the container in step 2.

[0009] The soil conditioner in step 4 includes organic granular fertilizer, guest soil and heavy metal stabilizer, and the mass ratio of the organic granular fertilizer, guest soil, heavy metal stabilizer and plant seeds is 15-20 parts: 55-65 parts: 10-15 parts: 10-15 parts.

[0010] As an improvement, the heavy metal stabilizer comprises one or more of superphosphate, goethite, quicklime and polyacrylamide.

[0011] As an improvement, the plant seeds are preferably nitrogen-fixing plants, and one or more of white clover, alfalfa, Chinese milkvetch, Amorpha fruticosa, and Lespedeza bicolor are selected.

[0012] The degradable film layer is made of one or more materials selected from PBAT (polybutylene succinate), PCL (polycaprolactone), PBS (polybutylene succinate) and PLA (polylactic acid).

[0013] The specific method of using this structure is to select a cool spot in the karst mining area, dig a hole inside multiple stones where the bio-bag can be fixed, then put the bio-bag in, cover the bio-bag with a thin layer of 1.5-3cm of soil, and then carry out the initial watering operation. Within one year of planting, ensure 3-7 watering operations per week.

[0014] After adopting the above structure, the present invention has the following advantages: 1. The loofah is a container for carrying soil conditioners and plant seeds. Its natural porous structure makes it have good heat insulation, water absorption and air permeability, which is beneficial to soil water retention and plant rooting in the natural soil, and at the same time has a certain adsorption effect on heavy metals in the soil.

[0015] 2. Loofah is a natural renewable fiber material with low cost, natural degradation and no pollution to the environment. DETAILED DESCRIPTION

[0016] The present invention is described in further detail below.

[0017] A structure and method for quickly restoring vegetation in a karst mining area, comprising a biological bag main body, a loofah, a new soil conditioner, and plant seeds to make the biological bag, and the biological bag is fixed between thin soils in rocky crevices. The loofah is a container for carrying the soil conditioner and the plant seeds, and its natural porous structure makes it have good heat insulation, water absorption and air permeability, which is conducive to soil water retention and plant rooting in natural soil, and at the same time has a certain adsorption effect on heavy metals in the soil. The loofah is a natural renewable fiber material with low cost, natural degradability, and no pollution to the environment.

[0018] The preparation steps of the biological package body are as follows:

[0019] Step 1: Select evenly sized loofahs, use glycerol and water as solvents to dissolve the lignin in the loofahs;

[0020] Step 2: Cut the loofah with lignin dissolved in step 1 into 15cm sections, and organize every 6 sections into a flower-shaped container. When performing the specific operation, you can use a rope to tie the six sections of loofah together for use.

[0021] Step three: Wrap a layer of degradable film layer on the outside of the container in step two, and pierce a plurality of holes on the outside of the degradable film layer. The degradable film layer is made of one or more materials selected from PBAT (polybutylene succinate), PCL (polycaprolactone), PBS (polybutylene succinate) and PLA (polylactic acid).

[0022] Step 4: Add a mixture of soil conditioners and plant seeds with a total weight of 2kg to 2.5kg to each hole in the container in step 2, wherein the soil conditioner in step 3 includes organic granular fertilizer, guest soil and heavy metal stabilizer, and the mass ratio of the organic granular fertilizer, guest soil, heavy metal stabilizer and plant seeds is 15 to 20 parts: 55 to 65 parts: 10 to 15 parts: 10 to 15 parts, and the component of the heavy metal stabilizer is one or more of superphosphate, goethite, quicklime and polyacrylamide. The plant seeds are preferably nitrogen-fixing plants, and one or more of white clover, alfalfa, astragalus, Amorpha fruticosa and Lespedeza are selected.

[0023] At the same time, nitrogen-fixing plants are divided into shrub seeds and herb seeds. During the actual production, shrub seeds are sprinkled into the middle holes of the container, and herb seeds are sprinkled into the surrounding holes. Nitrogen-fixing plants establish a symbiotic relationship with rhizobia, converting nitrogen in nature into ammonium salts that can be absorbed and utilized by plants, effectively improving soil fertility and providing nutrition for plant growth.

[0024] A method for using a structure for quickly restoring vegetation in a karst mining area comprises the following steps: selecting a cool spot in the karst mining area, digging a hole inside a plurality of stones into which a biobag can be fixed, placing the biobag in the hole, covering the biobag with a thin layer of soil of 1.5 to 3 cm, and then watering the biobag for the first time. Within one year of planting, watering is ensured 3 to 7 times a week.

[0025] Specific embodiment 1: select loofahs of uniform size, use glycerol and water as solvents to dissolve the lignin in the loofahs, cut the loofahs with dissolved lignin into 15 cm sections, organize every 6 sections into a flower-shaped container, and in specific operation, use a rope to tie the six sections of loofahs together, wrap a layer of degradable film layer on the outside of the container, and poke a plurality of holes on the outside of the degradable film layer, and add a soil conditioner and a plant seed mixture with a total weight of 2 kg to each hole in the container, and the mass ratio of the organic granular fertilizer, the guest soil, the heavy metal stabilizer and the plant seeds is 15 parts by weight. : 60 parts of foreign soil: 10 parts of heavy metal stabilizer: 15 parts of plant seeds. Choose a cool spot in the karst mining area, dig a hole in the middle of multiple stones where the bio-bag can be fixed, then put the bio-bag in, and then cover it with 2 cm of thin soil. That is, the stones can be used as natural fixed supports and shade to ensure the growth of vegetation. Within one year of planting, ensure 5 watering operations per week, and the watering amount is guaranteed to cover the container and the area within half a meter around the container. Planting in this way can ensure a survival rate of up to 95.2% per thousand containers.

[0026] Specific embodiment 2: select uniform-sized loofahs, use glycerol and water as solvents to dissolve the lignin in the loofahs, cut the loofahs with dissolved lignin into 15 cm sections, organize every 6 sections into a flower-shaped container, and during the specific operation, use a rope to tie the six sections of loofahs together, wrap a degradable film layer on the outside of the container, and poke a plurality of holes on the outside of the degradable film layer, and add a soil conditioner and a plant seed mixture with a total weight of 2.2 kg to each hole in the container, and the mass ratio of the organic granular fertilizer, the guest soil, the heavy metal stabilizer and the plant seed is 18. Parts: 65 parts of foreign soil: 12 parts of heavy metal stabilizer: 15 parts of plant seeds. Choose a cool spot in the karst mining area, dig a hole in the middle of multiple stones where the biological bag can be fixed, and then put the biological bag in, and then cover it with 3 cm of thin soil. That is, the stones can be used as natural fixed supports and shade to ensure the growth of vegetation. Within one year of planting, ensure 4 watering operations per week, and the watering amount is guaranteed to cover the entire container and the area within half a meter around the container. Planting in this way can ensure a survival rate of up to 96.8% per thousand containers.

[0027] Specific embodiment 3: select loofahs of uniform size, use glycerol and water as solvents to dissolve the lignin in the loofahs, cut the loofahs with dissolved lignin into 15 cm sections, organize every 6 sections into a flower-shaped container, and in the specific operation, use a rope to tie the six sections of loofahs together, wrap a layer of degradable film layer on the outside of the container, and poke a plurality of holes on the outside of the degradable film layer, and add a soil conditioner and a plant seed mixture with a total weight of 2 kg to each hole in the container, and the mass ratio of the organic granular fertilizer, the guest soil, the heavy metal stabilizer and the plant seeds is 20 parts by weight. : 65 parts of foreign soil: 15 parts of heavy metal stabilizer: 40 parts of plant seeds. Choose a cool spot in the karst mining area, dig a hole in the middle of multiple stones where the bio-bag can be fixed, then put the bio-bag in, and then cover it with 3 cm of thin soil. That is, the stones can be used as natural fixed supports and shade to ensure the growth of vegetation. Within one year of planting, ensure 7 watering operations per week, and the watering amount is guaranteed to cover the container and the area within half a meter around the container. Planting in this way can ensure a survival rate of up to 98.2% per thousand containers.

[0028] The present invention and its implementation methods are described above, and such description is not restrictive, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by it, and does not deviate from the purpose of the invention, and does not creatively design a structure and implementation method similar to the technical solution, they should all fall within the protection scope of the present invention.

Claims

1. A structure for rapid restoration of vegetation in karst mining areas, characterized by: The biological bag main body includes a loofah, a soil conditioner and plant seeds. The preparation steps of the biological bag main body are as follows: Step 1: Select evenly sized loofahs, use glycerol and water as solvents to dissolve the lignin in the loofahs; Step 2: Cut the loofah with lignin dissolved in step 1 into 15 cm sections, and organize every 6 sections into a flower-shaped container; Step 3: Wrap a layer of degradable film on the outside of the container in step 2, and punch a plurality of holes on the outside of the degradable film; Step 4: Add a mixture of soil conditioner and plant seeds with a total weight of 2kg to 2.5kg into each hole in the container in step 2.

2. The structure for rapid restoration of vegetation in karst mining areas according to claim 1, characterized in that: The soil conditioner in step 4 includes organic granular fertilizer, guest soil and heavy metal stabilizer, and the mass ratio of the organic granular fertilizer, guest soil, heavy metal stabilizer and plant seeds is 15-20 parts: 55-65 parts: 10-15 parts: 10-15 parts.

3. The structure for rapid restoration of vegetation in karst mining areas according to claim 2, characterized in that: The heavy metal stabilizer comprises one or more of superphosphate, goethite, quicklime and polyacrylamide.

4. The structure for rapid restoration of vegetation in karst mining areas according to claim 2, characterized in that: The plant seeds are preferably nitrogen-fixing plants, and one or more of white clover, alfalfa, Chinese milk vetch, Amorpha fruticosa, and Lespedeza bicolor are selected.

5. The structure for rapid restoration of vegetation in karst mining areas according to claim 1, characterized in that: The degradable film layer is made of one or more materials selected from PBAT (polybutylene succinate), PCL (polycaprolactone), PBS (polybutylene succinate) and PLA (polylactic acid).

6. A method for using a structure for rapid restoration of vegetation in a karst mining area according to claims 1-5, characterized in that: Choose a cool spot in the karst mining area, dig a hole inside several stones where the biobag can be fixed, and then put the biobag in.

7. The method for using the structure for rapid restoration of vegetation in karst mining areas according to claim 6, characterized in that: Cover the bio-bag with a thin layer of soil of 1.5-3 cm, and then carry out the initial watering operation.

8. The method for using the structure for rapid restoration of vegetation in karst mining areas according to claim 6, characterized in that: During the first year of planting, ensure watering 3-7 times a week.