Rock wound vegetation cluster planting method

Abstract

The invention provides a rock wound vegetation cluster planting method, which comprises the following steps of: constructing a similar circular weathering window type, longitudinal retreat step type or transverse retreat step type unbalanced surface on a rock wound, and forming an integral complete rock surface and a rock interlayer gap section on a slope surface, so as to change a slope surface catchment microenvironment; observing and evaluating slope stability; hydrated lime and the like are directionally and wetly sprayed to the cross section and the periphery of an interlayer gap for the first time of spray-seeding; in the second spray seeding, grass and shrub seeds and the like are directionally and wetly sprayed to the cross section and the periphery of the interlayer gap; and in the third spray seeding, low-grade plant spore powder is added into the waste fruit leavening, and the mixture is sprayed and seeded to the whole rock wound surface. According to the method, the micro landform on the side slope is changed by adopting a mode similar to a circular weathering window type unbalanced surface and the like, the size of a confluence surface of a rock wound surface is changed, and enough moisture is provided for normal growth of vegetation on a cross section of a gap between rock layers; and a nature-based imitated difference weathering window ecological restoration way is provided for a high and steep multilayer broken rock side slope wound surface.

Description

Technical Field

[0001] The invention relates to the technical field of ecological restoration, soil and water conservation and mine slope vegetation restoration, and in particular to a method for planting vegetation clusters on rock wound surfaces. Background Art

[0002] Typical sulfide metal ores are mainly formed by magmatic rocks intruding into layered sedimentary rocks. Magmatic activity brings rich ore-forming materials and heat, providing the material basis and energy source for the formation of lead-zinc mines. The hydrothermal fluids released during the cooling of the magma react chemically with the surrounding rocks, extracting metal elements such as lead and zinc from the rocks to form metal-rich hydrothermal fluids. These hydrothermal fluids precipitate and enrich in suitable geological structures of surrounding rocks such as carbonate rocks with high porosity and permeability. At the same time, hydrothermal fluids react with surrounding rocks such as carbonate rocks to form a series of skarn minerals, which also promote the further enrichment of metal elements such as lead and zinc. Silicification enhances the porosity and permeability of rocks, which is conducive to the migration of hydrothermal fluids and the mineralization. After multiple periods of tectonic movement, the morphology and distribution of the ore body have been transformed and affected to a certain extent. At the same time, the surrounding surrounding rocks are soft and hard, with a complex layered structure and many gaps.

[0003] Open-pit mining of typical sulfide polymetallic mines has caused the destruction of a large amount of original landforms and vegetation, the spread of heavy metal pollution, and the damage to the ecosystem, forming a large number of damaged wounds with exposed rock and soil. The damaged wounds in the mining area have obvious layered rock structures, heavy metal pollution, different rock types between rock layers, and different degrees of hardness. The structure is relatively broken, and there are relatively serious secondary geological disasters. Previous measures such as spraying green soil, planting holes, cement grid thick soil, vegetation floating platforms, and ecological bag tying are not only costly, but also cause great disturbance to the broken rock walls. During construction, it is very easy to cause slope instability and form secondary geological disasters such as collapse and landslides. At the same time, due to problems such as heavy metal pollution, the soil layer is very easy to acidify in the later stage, and the vegetation layer will degrade on a large scale.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The purpose of the present invention is to provide a method for planting vegetation clusters on rock wound surfaces, which can solve the problems of the inability of high and steep slope wound surfaces in sulfide polymetallic mining areas to carry too much foreign soil, difficulty in covering with soil and greening, spread of heavy metal pollution, and soil acidification, and provide a nature-based differential weathering window ecological restoration technology approach for high, steep and multi-layered broken rock slope wound surfaces.

[0006] The present invention provides a method for planting vegetation clusters on rock wound surfaces, comprising the following steps:

[0007] S1. After cleaning the floating rocks on the slope, any one or more of the following unbalanced surfaces, such as circular weathering window-type unbalanced surfaces, longitudinal step-back unbalanced surfaces, and transverse step-back unbalanced surfaces, are constructed on the rock wound surface, forming two types of rock surfaces, namely, the overall complete rock surface and the interlayer gap sections of the rock layers. The entire complete rock surface forms a confluence surface, and the irregular interlayer gap sections absorb the confluent water to form a confluence diversion channel, which changes the microenvironment of the slope as a whole and prepares for the micro-greening of the slope.

[0008] Preferably, in step S1, a circular weathering window-like unbalanced surface and / or a transverse step-back unbalanced surface is constructed on the rock wound surface; more preferably, a circular weathering window-like unbalanced surface is constructed on the rock wound surface.

[0009] Preferably, in step S1, the rock wound surface is a rock wall wound surface in a sulfide metal mining area; more preferably, the rock wound surface is a fresh rock wound surface on an open-air cliff wall in a typical sulfide metal mining area in an area with an annual precipitation of more than 800 mm (more preferably 1200 mm).

[0010] Preferably, in step S1, the size of the complete rock surface is between 5-50 cm, and the cross-sectional size of the interlayer gaps of the rock strata is between 2-40 cm.

[0011] S2. Observe and evaluate the slope stability. If there is water damage and runoff gullies, reshape the slope to form a multi-layer interlayer gap section to drain and absorb the runoff laterally.

[0012] Specifically, the prepared slope surface is placed and waited for one or two moderate or heavy rains (high-pressure water gun spraying can also be used to simulate natural rainfall conditions), and the slope stability is observed and evaluated to see if there is water damage and large runoff gullies from the top to the bottom of the slope. If so, it is cleaned again, especially where runoff gullies appear, and the slope is trimmed again to form a multi-level rock layer interlayer gap section to guide and absorb the runoff as horizontally as possible.

[0013] Preferably, in step S2, a multi-level rock stratum interlayer gap section is formed by trimming, and the interval between two rock stratum gap sections is between 60-90 cm.

[0014] S3. The first spraying uses slaked lime, apatite, zeolite and poultry manure compost, which are evenly mixed with water and plant glue, and then wet-sprayed to the cross-section of the interlayer gaps and the surrounding areas in a directional manner. The intact rock surface wound is kept as it is without spraying.

[0015] The first spraying of slaked lime, apatite, zeolite and poultry manure compost, etc., effectively fixed heavy metals by releasing phosphorus, and achieved the passivation and repair of heavy metals such as Pb, Cd, Cu, Zn, Ni, Hg, etc., thereby reducing the harm of heavy metals to the environment and plants, improving the health of the ecosystem, and providing the phosphorus element required by plants to promote plant growth.

[0016] Preferably, in step S3, the mass ratio of slaked lime, apatite, zeolite and poultry manure compost is (8-10):(2-4):(1-2):(60-70).

[0017] Preferably, the amount of the plant glue used can be 2-5% of the total amount of slaked lime, apatite, zeolite and poultry manure compost according to actual conditions.

[0018] Preferably, in step S3, the particle size of the slaked lime, apatite, zeolite and poultry manure compost does not exceed 3 cm.

[0019] Preferably, the first spraying thickness does not exceed 3 cm.

[0020] S4. Keep the original state for a period of time after the first spraying (preferably 2-3 months later, or as far as possible after spring), and then carry out the second spraying. The second spraying uses grass shrub seeds, which are evenly mixed with plant glue, water retaining agent and planting soil, and then sprayed wetly to the cross-section of the interlayer gap and the surrounding area in a directional manner. The intact rock surface is kept as it is without spraying.

[0021] Preferably, in step S4, the grass and shrub seeds include one or more of Miscanthus wujieensis, Eleocharis truncatula, Cyperus rotundus and Ziziphus jujuba.

[0022] Preferably, in step S4, the ratio of grass and shrub seeds is (1-2):1, more preferably 1:1.

[0023] Preferably, in step S4, the ratio of the plant gum, water retaining agent and planting soil is (1-2):(2-4):(3-5), more preferably 1:2:3.

[0024] Preferably, in step S4, the total amount of the grass shrub seeds, plant glue, water retaining agent and planting soil is 5-15% of the water volume, and more preferably 6-10%.

[0025] Preferably, the second spraying thickness does not exceed 1 cm, or there are obvious grass seeds left.

[0026] S5. After the second spraying, moisturize and maintain for a period of time (preferably 2 to 3 weeks, until the local grass and shrub seeds germinate), and then spray for the third time. Add spore powder of lower plants (ferns and mosses) to the discarded fruit fermentation material, mix evenly, and spray to the entire rock wound surface.

[0027] Ferns and mosses usually have high requirements for the growth environment, especially high humidity and low temperature. These conditions are often difficult to meet on the rock surface exposed to direct sunlight, which makes it difficult for spores to germinate and grow. Grass and shrubs usually grow faster and can form a certain vegetation cover in a short period of time. This cover plays an important role in reducing the direct exposure of the rock surface and lowering the temperature of the rock surface. Therefore, the lush growth of grass and shrubs can provide shade for ferns, mosses, etc., keep the rock surface moist, and provide favorable conditions for the germination and growth of spores. The root system of grass and shrubs can also help fix the soil (although it mainly fixes rock debris and soil particles on the rock surface), reduce soil erosion, and provide better substrate conditions for the subsequent growth of plants. Therefore, separate spraying is not only conducive to the growth of grass and shrubs and ferns and mosses according to their own growth characteristics, but also can create a better growth environment for subsequent ferns and mosses through the early growth of grass and shrubs, which is conducive to the effective greening and ecological restoration of the rock surface.

[0028] Preferably, in step S5, the fruit includes: one or more of persimmon, pear, apple and orange; specifically, common discarded fruits such as persimmon, pear, apple and orange are crushed and fermented with juice for 1-2 weeks.

[0029] Beneficial effects:

[0030] (1) The present invention uses unbalanced surfaces such as circular weathering windows, longitudinal step-back and transverse step-back to change the micro-topography on the slope, fundamentally changing the size of the confluence surface of the rock wound surface. The two types of confluence surfaces, the intact rock surface and the interlayer gap section of the rock layer, form a confluence surface and a absorption surface to offset each other, reducing the large confluence erosion on the slope surface and providing sufficient moisture for the normal growth of vegetation on the interlayer gap section of the rock layer.

[0031] (2) The present invention adopts differentiated classification and layered spraying according to the physical and chemical characteristics and degree of fragmentation of different rock types on the steep slope surface, aiming to form some scattered grass and shrub clusters in the cross-section of the gaps between rock layers, and form a low-level plant community dominated by moss on this basis, thereby preserving the integrity of the rock surface, minimizing the disturbance of the project, reducing the load on the slope, and thus alleviating secondary geological disasters.

[0032] (3) The present invention uses slaked lime, apatite, zeolite, etc. to effectively block the activation of heavy metals in the interlayer gaps of rock layers and prevent the expansion of pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0034] Figure 1 A schematic diagram of the micro-topography of the lateral stepped unbalanced surface of the slope provided by the present invention.

[0035] Figure 2 A schematic diagram of the micro-topography of a slope similar to a circular weathering window-type uneven surface provided by the present invention.

[0036] Figure 3 A schematic diagram of the micro-topography of the longitudinal stepped unbalanced surface of the slope provided by the present invention.

[0037] Figure 4 The present invention provides a side slope lateral stepped unbalanced surface vegetation planting effect.

[0038] Figure 5 The slope provided by the present invention has a circular weathering window-like uneven surface vegetation planting effect.

[0039] Figure 6 The invention provides the effect of vegetation planting on the longitudinal stepped unbalanced surface of the slope.

[0040] Explanation of the accompanying symbols: 1. Complete rock surface; 2. Cross-section of the gap between rock layers; 3. Direction of water flow. DETAILED DESCRIPTION

[0041] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0042] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form also includes the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0043] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The experiment was conducted in February on the slope of a gold-silver polymetallic open-pit mine in a town in Hengyang City, Hunan Province. The experiment was divided into three experimental surfaces: horizontal step-back type, circular weathering window type, and vertical step-back type unbalanced surface microenvironment. Each experimental area is 30-70m 2 between.

[0045] Example 1 Laterally stepped unbalanced surface microenvironment

[0046] (1) After clearing the pumice from the slope, according to the trend characteristics of the layered rock strata, the different hardness of each layer of rock and the characteristics of the gaps between them, a horizontal step-back uneven surface was constructed on the rock wound surface in imitation of the natural scratches and spherical weathering characteristics of rocks (see Figure 1 ), forming two types of rock surface 1 and interlayer crack section 2 on the slope. The size of the rock surface is between 10-50cm, and the size of the interlayer crack section is between 5-40cm. The entire rock surface forms a confluence surface, and the irregular interlayer crack section absorbs the confluence water, forming a confluence diversion channel. The confluence water flows to 3 as shown in Figure 1 As shown, the microenvironment of the slope is changed as a whole, preparing for the micro-greening of the slope.

[0047] (2) After the slope was left for 6 days and waited for a heavy rain, the slope stability was evaluated and a large confluence ditch was found from the top to the bottom of the slope. The slope was trimmed again to form a multi-layer interlayer gap section with a spacing of 60-90 cm between the two layers.

[0048] (3) Mix slaked lime, apatite, zeolite and poultry manure compost in a mass ratio of 9:2:2:70, with a particle size of no more than 3 cm. After adding water and plant glue, spray them onto the interlayer gap section and the surrounding area. The intact rock surface wound surface is kept as it is without spraying. Among them, the amount of plant glue accounts for 2% of the total substrate. The spraying thickness was randomly inspected at 8 locations, and the thickest part was 1.8 cm.

[0049] (4) After spraying, the original state was maintained for 25 days until the end of March, when the second spraying was carried out. The second spraying used Miscanthus fragrans, Eleocharis chinensis and Ziziphus jujuba in a ratio of 1:1, and mixed evenly with plant glue: water retainer: planting soil = 1:2:3. The mixture of grass shrub seeds and plant glue, water retainer and planting soil accounted for 6% of the water volume. Directional wet spraying was carried out on the interlayer gap section and the surrounding area. The intact rock surface was kept as it was without spraying. It can be seen with the naked eye that there are obvious grass seeds left. Grass seeds were found in 10 spraying sites, and the thickness could not be accurately determined, but it was all within 1 cm.

[0050] (5) After the second spraying, the seeds were kept moisturized for 2 weeks. After some grass seeds sprouted, the third spraying was carried out. Common discarded fruits such as persimmons and oranges were crushed and fermented with juice for 2 weeks. Then, moss spore powder and a small amount of pteris spores were added and evenly mixed. The mixture was then quickly sprayed onto the entire rock wound surface.

[0051] Example 2: Similar to circular weathering window type uneven surface microenvironment

[0052] (1) After cleaning the pumice on the slope, according to the trend characteristics of the layered rock, the different hardness of each layer of rock and the characteristics of the gaps between them, a circular weathering window-like uneven surface was constructed on the rock wound surface in imitation of natural scratches and the spherical weathering characteristics of rocks (see Figure 2 ), forming two types of rock surface 1 and interlayer crack section 2 on the slope. The size of the rock surface is between 5-30cm, and the size of the interlayer crack section is between 2-20cm. The entire rock surface forms a confluence surface, and the irregular interlayer crack section absorbs the confluence water, forming a confluence diversion channel. The confluence water flows to 3 as shown in Figure 2 As shown;

[0053] (2) After the prepared slope was left for 6 days and then waited for a heavy rain, the slope stability was observed and evaluated. No large drainage gullies were found from the top to the bottom of the slope.

[0054] (3) Mix slaked lime, apatite, zeolite and poultry manure compost in a mass ratio of 9:4:2:65, with a particle size not exceeding 3 cm. After adding water and plant glue, spray them onto the interlayer gap section and the surrounding area. The intact rock surface wound is left as it is without spraying. Among them, the amount of plant glue accounts for 3% of the total substrate. The spraying thickness was randomly inspected at 8 locations, and the thickest part was 2.5 cm.

[0055] (4) After spraying, the original state was maintained for 25 days until the end of March, when the second spraying was carried out. The second spraying used Miscanthus fragrans, Eleocharis chinensis and Ziziphus jujuba in a ratio of 1:1, and mixed evenly with plant glue: water retainer: planting soil = 1:2:3. The mixture of grass shrub seeds and plant glue, water retainer and planting soil accounted for 8% of the water volume. Directional wet spraying was carried out on the interlayer gap section and the surrounding area. The intact rock surface was kept as it was without spraying. It can be seen with the naked eye that there are obvious grass seeds left. Grass seeds were found in 10 spraying sites, and the thickness could not be accurately determined, but it was all within 1 cm.

[0056] (5) After the second spraying, the seeds were kept moisturized for 2 weeks. After some grass seeds sprouted, the third spraying was carried out. Common discarded fruits such as persimmons and oranges were crushed and fermented with juice for 2 weeks. Then, moss spore powder and a small amount of pteris spores were added and evenly mixed. The mixture was then quickly sprayed onto the entire rock wound surface.

[0057] Example 3: Longitudinal step-back unbalanced surface microenvironment

[0058] (1) After clearing the floating rocks on the slope, according to the trend characteristics of the layered rock strata, the different hardness of each layer of rock and the characteristics of the gaps between them, a vertical step-back uneven surface was constructed on the rock wound surface in imitation of the natural scratches and spherical weathering characteristics of rocks (see Figure 3 ), forming two types of rock surface 1 and interlayer crack section 2 on the slope. The size of the rock surface is between 6-50cm, and the size of the interlayer crack section is between 2-15cm. The entire rock surface forms a confluence surface, and the irregular interlayer crack section absorbs the confluence water, forming a confluence diversion channel. The confluence water flows to 3 as shown in Figure 3 As shown;

[0059] (2) After the prepared slope was left for 6 days and then waited for a heavy rain, the slope stability was observed and evaluated. No large runoff gullies were found from the top to the bottom of the slope, indicating that the rock structure of this experimental surface was relatively intact.

[0060] (3) Mix slaked lime, apatite, zeolite and poultry manure compost in a mass ratio of 8:3:2:60, with a particle size of no more than 3 cm. After adding water and plant glue, spray them onto the interlayer gap section and the surrounding area. The intact rock surface wound is left as it is without spraying. Among them, the amount of plant glue accounts for 4% of the total base material. The spraying thickness was randomly inspected at 8 locations, and the thickest part was 1.9 cm.

[0061] (4) After spraying, the original state was maintained for 25 days until the end of March, when the second spraying was carried out. The second spraying used Miscanthus fragrans, Eleocharis chinensis and Ziziphus jujuba in a ratio of 1:1, and mixed evenly with plant glue: water retainer: planting soil = 1:2:3. The mixture of grass shrub seeds and plant glue, water retainer and planting soil accounted for 10% of the water volume. Directional wet spraying was carried out on the interlayer gap section and the surrounding area. The intact rock surface was kept as it was without spraying. It can be seen with the naked eye that there are obvious grass seeds left. Grass seeds were found in 10 spraying sites, and the thickness could not be accurately determined, but it was all within 1 cm.

[0062] (5) After the second spraying, the seeds were kept moisturized for 2 weeks. After some grass seeds sprouted, the third spraying was carried out. Common discarded fruits such as persimmons and oranges were crushed and fermented with juice for 2 weeks. Then, moss spore powder and a small amount of pteris spores were added and evenly mixed. The mixture was then quickly sprayed onto the entire rock wound surface.

[0063] Effect evaluation: After spraying, two photos were taken in May and June to find the actual recovery effect. The vertical step-back vegetation cluster planting of Example 3 was greater than the circular weathered window-like vegetation cluster planting of Example 2 and the horizontal step-back vegetation cluster planting of Example 1 (see Figure 4-6 ). Among them, Miscanthus fruticosa and Goosegrass grew well on the interlayer gap section of the rock layer, and the moss growth effect was good. Moss grew on the entire rock surface of the experimental area of ​​Example 3 (probably due to the high amount of plant glue and water retaining agent added), and the lateral water conduction effect was good, but the sustainability was not good. When the slope surface was not moisturizing in the later stage, the moss on the intact rock surface was seriously degraded. However, the sour jujube and pteris were not seen, and even did not grow, but overall the goal of rapid planting of vegetation clusters was achieved, and the heavy metal diffusion pollution was significantly controlled. The heavy metal content in the water samples collected below the foot of the slope was reduced to varying degrees.

[0064] In a later photo observation in August, the circular weathering window-like vegetation clustering of Example 2 had the best planting effect, the horizontally stepped vegetation clustering of Example 1 was second, and the vertically stepped vegetation clustering of Example 3 was more seriously degraded. Among them, the vegetation coverage of the experimental surfaces of Examples 1 and 2 reached about 60-70%, and the experimental surface of Example 3 also reached more than 40%. The degraded part was mainly the moss on the smooth surface of the intact rock.

[0065] Comparative Example

[0066] This comparative example is basically the same as Example 1, except that in this comparative example, the grass and shrub seeds sprayed for the second time and the moss and pteris spore powder sprayed for the third time were sprayed at the same time, and as a result, neither the moss nor the pteris spore grew.

[0067] In summary, the present invention provides a solution to the problems of the high and steep slope wounds in sulfide polymetallic mining areas being unable to carry too much foreign soil, being difficult to cover with soil for greening, the spread of heavy metal pollution, and soil acidification, and provides a nature-based ecological restoration technology approach for the simulated differential weathering window for high and steep and multi-layered broken rock slope wounds. According to the physical and chemical characteristics and degree of fragmentation of different rock types on the high and steep slope wounds, differentiated classification and layered spraying are carried out, aiming to form some scattered grass and shrub clusters in the interlayer gap cross-section of the rock strata, and form a low-level plant community dominated by moss on this basis, retaining the intact rock surface, and minimizing the disturbance of the project, reducing the load on the slope, and thus reducing secondary geological disasters. The first base layer of slaked lime, apatite, and zeolite can effectively block the activation of heavy metals in the interlayer gap cross-section of the rock strata, and prevent the expansion of pollution. The circular weathering windows, longitudinal steps and transverse step-type unbalanced surfaces have changed the micro-topography on the slope and fundamentally changed the size of the confluence surface of the rock wound surface. The complete rock surface and the interlayer gap section formed the confluence surface and the absorption surface to offset each other, reducing the large confluence erosion on the slope surface and providing sufficient water for the normal growth of vegetation on the interlayer gap section of the rock strata.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for planting vegetation clusters on rock wound surfaces, characterized in that: The steps include: S1. After cleaning the floating rocks on the slope, any one or more of the following are constructed on the rock wound surface: a circular weathering window-type uneven surface, a longitudinal step-back uneven surface, and a transverse step-back uneven surface. Two types of rock surfaces, an overall complete rock surface and a rock layer interlayer gap section, are formed on the slope surface. The entire complete rock surface forms a confluence surface, and the irregular interlayer gap section absorbs the confluence water to form a confluence diversion channel, thereby changing the microenvironment of the slope surface as a whole. S2. Observe and evaluate the stability of the slope. If there is water damage and confluence gullies, reshape the slope to form a multi-level inter-layer gap section to drain and absorb the confluence laterally. S3. The first spraying uses slaked lime, apatite, zeolite and poultry manure compost, which are evenly mixed with water and plant glue, and then sprayed in a directional manner to the cross-section of the interlayer gap and its surroundings, leaving the intact rock surface intact; S4. After the first spraying, keep the original state for a period of time, and then spray for the second time. The second spraying uses grass irrigated seeds, which are evenly mixed with plant glue, water retaining agent and planting soil, and then sprayed in a directional wet manner to the cross section of the interlayer gap and the surrounding area, and the intact rock surface is kept as it is; S5. After the second spraying, moisturize and maintain for a period of time until the local grass and shrub seeds germinate, then spray for the third time. Add low-level plant spore powder to the discarded fruit fermentation material, mix evenly, and spray to the entire rock wound surface.

2. The method for planting vegetation clusters on rock wound surfaces according to claim 1, characterized in that: In step S1, the rock wound surface is a rock wall wound surface in a sulfide metal mining area.

3. The method for planting vegetation clusters on rock wound surfaces according to claim 1, characterized in that: In step S1, the size of the complete rock surface is between 5-50 cm, and the cross-sectional size of the interlayer gaps of the rock layers is between 2-40 cm.

4. The method for planting vegetation clusters on rock wound surfaces according to claim 1, characterized in that: In step S2, a multi-level rock stratum interlayer gap section is formed by trimming, and the interval between two rock stratum gap sections is between 60-90 cm.

5. The method for planting vegetation clusters on rock wound surfaces according to claim 1, characterized in that: In step S3, the mass ratio of slaked lime, apatite, zeolite and poultry manure compost is (8-10):(2-4):(1-2):(60-70); the amount of the plant gum is 2-5% of the total amount of slaked lime, apatite, zeolite and poultry manure compost.

6. The method for planting vegetation clusters on rock wound surfaces according to claim 1, characterized in that: In step S3, the particle size of the slaked lime, apatite, zeolite and poultry manure compost does not exceed 3 cm.

7. The method for planting vegetation clusters on rock wound surfaces according to claim 1, characterized in that: In step S4, the grass and shrub seeds include one or more of Miscanthus wujieensis, Goosegrass, Cyperus rotundus and Ziziphus jujuba.

8. The method for planting vegetation clusters on rock wound surfaces according to claim 1, characterized in that: In step S4, the ratio of the grass shrub seeds is (1-2):1; the ratio of the plant glue, water retaining agent and planting soil is (1-2):(2-4):(3-5); the total amount of the grass shrub seeds, plant glue, water retaining agent and planting soil is 5-15% of the water volume.

9. The method for planting vegetation clusters on rock wound surfaces according to claim 1, characterized in that: In step S5, the fruit includes one or more of persimmon, pear, apple and orange.

10. The method for planting vegetation clusters on rock wound surfaces according to claim 1, characterized in that: In step S5, the lower plant spore powder includes one or more of pteridophyte and bryophyte spore powder.

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