673 results about "Revegetation" patented technology

The invention discloses a revegetation system on steep rocky slopes and an implementing method thereof, which are suitable for surface vegetalization of steep rocky uncover slopes with the gradient of 60 degrees above. A slope drainage system is arranged in the system to prevent the vegetalization layer from being flushed by rainwater and reduce water loss and soil erosion; a mix-sprayed vegetalization layer plastic-covered with iron wire corrugated meshes and consisting of continuous fiber is arranged on the slopes and has stable structure, rich nutrition and functions of water conservation and ventilation. The casting separator prevents the mix-sprayed vegetalization layer from sliding downwards; and a drop irrigation facility is distributed to make sure that the vegetalization layer is moist. After maintenance of mix-sprayed construction on the slopes, the vegetable layer with herbaceous plants and shrubs can be effectively formed, thereby reconstructing the destructed vegetables on the slopes and recovering the natural landscapes on the uncover slopes.

The invention belongs to the technical field of ecological engineering and particularly relates to a method of vegetation restoration and reconstruction of a bare rock slope in East China. the engineering materials such as active plant material and synthetic geonet are utilized, a plant-growing substrate (plant tool species seed, nutritional soil and binder) is uniformly mixed according to a certain proportion and injected on the rock slope according to the design thickness by a special injection device for the plant-growing substrate, an ecological environment which can ensure normal growth of the plant is created on the rock slope, the slope reinforcement and vegetation restoration are realized through the growth of the plant and other auxiliary functions, and the purpose of vegetation reconstruction of the bare rock slope is achieved. The method is applicable to the vegetation restoration and reconstruction of the bare rock slope in East China with respects to plant tool species and medium formulation and obtains obvious ecological benefits after several years of implementation and popularization.

The invention provides a vegetation recovery method for an acid metal mine solid waste stock dump, comprising the following steps of: stabilizing the stock dump; building a slope-surface water supply and drain system; carrying out anti-seepage isolation on a surface layer; filling and sealing the surface layer of the stock dump, so as to form a filling layer, and spraying and adsorbing a flexible anti-seepage isolation material, so as to form an anti-seepage isolation layer; paving vegetation cushions, and fixing in an anchoring way; paving bi-way geogrids, and fixing the geogrids and the vegetation cushions on the slope surface together by rivets; sequentially spraying plant-growing matrixes and seed layers; and covering vegetation carpets on the surface. According to the vegetation recovery method for the acid metal mine solid waste stock dump, the problem of environment pollution caused by various pollutants on the acid metal mine solid waste stock dump can be effectively reduced, a stock dump vegetation system can be recovered, the green vegetation area can be enlarged, and a good environment can be built.

The invention discloses a revegetation method for mine slopes, which includes steps: firstly, clearing a slope to remove impurities on the slope; secondly, configuring planting material, namely selecting planting soil, peat soil, turf fibers, slow release fertilizer, fast release fertilizer, super absorbent polymers and adhesive prior to well mixing, and using the mixture as the reserve material; thirdly, constructing a planting-bag cofferdam planter, namely using planting bags filled with the planting material to construct the bird's nest shaped planter on a local concave lot of the slope; fourthly, performing material spraying, namely fastening anchor bolts on a non-planter portion of the slope, hanging a metal net on the anchor bolts, spraying the planting material to the metal net, mixing plant seeds with surface soil on the surrounding mountain land to obtain mixture, and using a sprayer to spray the mixture to the planting material; fifthly, planting a seedling in the planter; and sixthly, replanting material-type containerized seedlings. The revegetation method is low in cost, great economic benefits are obtained by using the method, and a composite revegetation process based on arbors and shrubs and combination of arbors, shrubs and grasses is built.

The invention discloses a method for conducting afforestation on saline-alkali soil. The method includes the steps of firstly, digging deep planting pits in the saline-alkali soil; secondly, paving two layers of isolating curtains at the bottom of each planting pit and the inner wall of each planting pit respectively; thirdly, arranging filtering layers between each isolation layer and the bottom of each planting pit and between each isolating layer and the inner wall of each planting pit; fourthly, preparing mixed matrix, filling the matrix into the pits and tamping down the matrix; fifthly, planting seedlings; sixthly, conducting maintenance management. According to the method for conducting afforestation on the saline-alkali soil, the difficult problems of lowering the salt content, improving the soil and conducting afforestation on the saline-alkali soil are solved. Through the measures of discharging salt and blocking salt, the salt content in the distribution range of the plant root systems is lowered, the plant root systems are promoted to absorb nutrient and water and discharge salt in a unidirectional mode, and a soil environment which is beneficial to plant growth is created. According to the method for conducting afforestation on the saline-alkali soil, the survival rate and the preserving rate of the seedlings are improved, and the method is low in cost compared with a traditional method for improving the saline-alkali soil by merely paving the salt isolating layers, replacing soil and conducting afforestation, is suitable for the saline-alkali soil afforestation and the plant cover recovery project, and can also be used in the manual construction and the machine and human coordinated construction.

The invention provides an afforested ecology brick comprising cement, frame material, pore material, organic fertilizer and slow release fertilizer. The organic fertilizer and the slow release fertilizer are blended evenly in a stirring mill by a certain proportion, and then shaped into circular or columnar pellets by a pelleter. The pore material and the frame material are smashed successively, and all materials are blended evenly into the stirring mill according to allocated proportion, and then loaded into a mold and aired or dried after the compression of a breeding hole device on the breeding holes. The invention has the advantages of reasonable design, easy operation, widespread selection of raw materials, and low cost. The ecology brick of the invention can not only solidify slope protection, but meet the growth of plants. Moreover, the invention has the abilities of anti-wind and anti-aridity, thereby enabling the flexible landscape design in different forestation places. The invention not only meets the afforested needs, but also processes the abandoned resources through solidifying means, thereby avoiding the pollution to the environment and meeting the demand of environmental protection. The invention can be applied to rock surface, slope forestation and solidification, and environmental greening.

The invention belongs to the field of ecological engineering and relates to a construction method of spraying and covering planting in an ecological restoration project, namely, a vegetation restoration method adopting a plant fiber blanket with the assist of slurry spraying. The invention is characterized in that the method comprises the following steps: laying a slope through the plant fiber blanket firstly, spraying and covering the slope through slurry and covering the slope through the plant fiber blanket. In the invention, a three-dimensional net made of geotextile material can be replaced; chemical synthetic materials entering the natural world can be obviously reduced when the effect of improving the overall and local stability of the slope is achieved; moreover, vegetable fiber can also increase organic components of soil, is beneficial for improving the capacities of water retaining and constant-temperature keeping of the soil on the surface layer and is beneficial for the growth of vegetation on the slope; when the construction cost is reduced, the low carbon conversion and utilization of agricultural and forestal residuals are realized, agricultural and forestal chains are extended, and the industrial added value of by-products is improved; and the method has a large application value in the soil and water conservation, sand prevention and control and ecological restoration of the damaged vegetation in a project in China.

The invention relates to a method for comprehensively treating the ecological environment of a coal gangue hill, which belongs to the field of mineral waste treatment and ecological environment restoration. The method mainly solves the problems of fire extinction, fire prevention and vegetation construction of the coal gangue hill. The method comprises the steps: the on-site reconnaissance of the coal gangue hill is carried out, and a construction operation plan is established; with fire prevention as principal and the combination of fire prevention and fire extinction, the fire prevention is crucial and is combined with the fire extinction, a thin layer of slurry is firstly sprayed on the coal gangue hill by a mechanical method to completely seal to form a sealing layer (8), transition slurry is sprayed on the sealing layer (8) to completely cover the sealing layer (8) to form a transition layer (9), slurry containing grass-shrub vegetation is spayed on the transition layer (9) to completely cover the transition layer (9) to form a planting layer (10); the contour line girdle band type operation in the spraying process is carried out from bottom to top to gradually and completely cover the hill, and different operating modes are selected according to practical conditions. The invention can not disturb the structure of the coal gangue hill, takes the fire prevention as the principal, combines the fire prevention with the fire extinction, has good and durable fire prevention effect, uses reliable and effective fire prevention and fire extinction measures as guarantee conditions to construct the planting layer, adopts grass-shrub plants, carries out hill sealing management and ensures vegetation restoration; in addition, the method uses the prior specialized mechanical devices to carry out construction operation, is easy to implement, has little difficulty, high efficiency and low investment and can ensure treatment effect.

The invention relates to a pollution prevention and vegetation recovery method for a metal sulphide ore solid waste storage yard. The method comprises the following steps of conducting stabilizing treatment on side slopes of the storage yard, laying a two-way geogrid, building intercepting ditches in the slope faces of the storage yard, spraying an acidic improvement layer, laying a flexible isolating layer, laying ecological sticks, laying a two-way geogrid, spraying a base material layer, spraying a seed layer and laying a protective layer, so that plants have sufficient water and nutrition during growth. Due to the fact that the acidic improvement layer is built for neutralizing H+, the plant growth condition can be built; the flexible isolating layer and vegetation recovery are combined for preventing H2O and O2 from making contact with tailings, sulfide minerals in waste rock can be effectively prevented from being oxidized, and therefore waste water acidification and heavy metal ion leaching are prevented. According to the pollution prevention and vegetation recovery method, the problem of environmental pollution of pollutants in the metal sulphide ore solid waste storage yard can be effectively reduced, the area of green plants can be increased, and the good ecological environment is built; the pollution prevention and vegetation recovery method is simple in construction technology, easy to implement, high in efficiency and suitable for large-area application.

The invention provides a conditioner for artificial soil on a slope with the function of water retention, which is prepared by the following raw materials according to weight percentage by compounding and mixing: 10 to 25 percent of livestock manure, 25 to 50 percent of super absorbent resin, 5 to 15 percent of ground phosphorite, 1 to 5 percent of anhydrite powder, 20 to 35 percent of humic acid, 5 to 10 percent of zeolite powder, 1 to 10 percent of chitosan, 0 to 10 pecent of bentonite, 0 to 5 percent of phosphate ester and 0 to 5 percent of citrate acid. The conditioner has obvious effects of enhancing the water retention of soil, reducing the water loss and soil erosion, improving the physical and chemical properties of soil and promoting the revegetation.

The invention relates to a degraded wetland vegetation in-situ recovery method, which is characterized in that according to the method, a seed bank resource remained in selected degraded wetland soil is utilized for carrying out vegetation in-situ recovery. The method comprises the following steps that 1) a soil seed bank is surveyed, and whether the degraded wetland has the vegetation in-situ recovery conditions or not and the plant types with the advantages in the soil seed bank are determined; 2) the water supplementation is carried out on regions meeting the vegetation in-situ recovery conditions in the first step, and in addition, the ground surface water level and the soil moisture content are controlled; 3) the ground surface vegetation after the degraded wetland vegetation in-situ recovery in the second step is surveyed; and 4) the successfully recovered soil seed bank is surveyed to confirm the recovery completion. The method has the advantages that the self remained soil seed bank resource is sufficiently utilized, the operation is easy, the maintenance cost is low, the vegetation recovery is fast, the species diversity is high, and the popularization and the application are easy.

The invention discloses a planting structure and a planting method thereof, aiming to solve the problem of water shortage for plant growth in arid regions and guarantee good plant growth and vegetation recovery in the arid regions. The planting structure comprises a planting pit and a planting soil layer in the planting pit. An impermeable film is arranged on the surface of the planting pit. An evaporation-resisting cover film is arranged at the upper end of the planting soil layer. A cover soil layer is arranged at the upper end of the cover film. By the planting structure, permeation and evaporative loss of moisture are remarkably reduced, rainwater collection, confluence and storage into the planting pit are facilitated, the planting pit can have sufficient moisture for plants to absorb, and accordingly, survival rate of planted plants is guaranteed. The planting method is simple in technology, low in cost and obvious in effect in the acid regions, and is of great significance in improving planting survival rate of plants in the acid regions and recovering vegetation.

The invention discloses a construction method for ecological restoration of riparian vegetation of mountain rivers. The method includes the following steps: (1), for restoration of aquatic vegetation, dispersedly planting potamogetonaceae and hydrocharitaceae submerged plants high in washing-out resistance in a project region; (2) for restoration of riverway rock and boulder vegetation, planting wetland plants strong in washing-out resistance in rock and boulder regions and the like in a riverway in the project region; (3) for restoration of waterfront plants, planting emerging plants and aquatic plants with washing-out resistance and deep roots between the riparian normal water level and the two-year flood level in the projection region; (4) for restoration of riparian vegetation, planting waterlogging-tolerance trees and shrubs of juglandaceae, betulaceae and the like between the two-year flood level and the 20-year flood level in the project region, and planting gramineae and cyperaceae herbaceous plants with deep roots in ground covers. By the method, the ecological problems about riparian water and soil erosion, weak river's self-purification capacity, sharp decline in biodiversity and the like are solved effectively, feasible and effective ecological remediation measures are provided for natural restoration and reconstruction of river banks and riverways.

The invention discloses a method for restoring vegetation on barren mountains and sloping fields in arid and semi-arid regions. The method comprises the following steps of: building a horizontal ditch in an arid and semi-arid barren mountain / sloping field region along a contour line; building semi-arc-shaped water collecting ridges in the horizontal ditch in an earth furrow spacing way, wherein a ditch is formed in the two water collecting ridges and is taken as a seedling planting region; and planting arid and semi-arid region greening trees in a seedling planting region and covering a covering layer. The technical scheme of the invention is suitable for arid and semi-arid regions, and has the advantages of easiness for operating, low cost, high wood survival rate, quick vegetation growth and good water and soil holding effect.

The invention belongs to the technical field of environmental protection and ecological engineering, relates to topological micro-reformation and vegetation restoration, and discloses a vegetation restoration method applicable to degraded plateau and lake wetlands. The vegetation restoration method is low in personnel and capital investment and mainly includes stages of background evaluation, selective enclosure and livestock reduction, topological micro-reformation for the wetlands and construction of screened plant communities or plant zones. The vegetation restoration method has the advantages that plateau wetland vegetation restoration is accelerated, wetland vegetation ecosystems are constructed, and the environmental quality of the degraded wetlands is improved.

A revegetation method for tailings dams in the northern region includes the following steps: (A) slopes are cleaned up and leveled in order to eliminate potential geological hazards; (B) the surface layer of a tailings dam is covered by 10 to 15 centimeters of planting soil; (C) slurry-like plant-growing soil culture medium is sprinkled on the surface of the covering soil, so that a plant-growing substratum with a stable, excellent crumble structure is formed; (D) plant seeds with high stress resistance combined with artificial soil are chosen to be sowed on the surface of the plant-growing substratum, so that a seed layer which is about 2 centimeters in thickness is formed; (E) a management measure with a spray irrigation system and protective nets is adopted to maintain epigaeous seedlings at the late stage. The revegetation method has the advantages that the revegetation method can enhance the adaptability of plants to the complex adverse environment of a tailings pond, including stronger drought-resisting, saline-alkali tolerant, barren-tolerant and nutrient-obtaining capabilities, the method can be utilized to restore the ecology of the slopes of the tailings dam and build a steady vegetation layer, and also has the effects of stabilizing the slopes, conserving water and soil and inhibiting runoff and flying tailings sand.

The invention discloses a method for restoring vegetations in a water-level-fluctuating zone. The method is capable of effectively preventing and controlling water and soil loss, intercepting and absorbing harmful chemical substances in a water body, reducing eutrophication of the water body and rapidly afforesting the water-level-fluctuating zone, and has the functions of fixing soil and retaining banks. The method comprises the following steps: 1) preparing soil of a riverside slope surface in a fluctuating zone, finishing the fluctuating zone along the contour line to form a step structure, and respectively digging a cuttage ditch on various steps of the step structure; 2) using nutrient soil to cover various cuttage ditches, inserting a plurality of living branch wooden piles, and connecting the adjacent living branch wooden piles on the same step by using a rope to form a whole, wherein planting grooves are formed between two rows of living branch wooden piles on the adjacent steps; 3) sequentially filling a lower mucky soil layer, a water supply layer, an upper mucky soil layer and a nutrient soil layer into the planting grooves from bottom to top so as to form a planting layer; and 4) respectively planting submerged plants, emergent aquatic plants and water-resistant tree shrubs in various planting grooves along the step structure from bottom to top, so that a three-dimensional vegetation restoring space is formed.

The invention provides a method through utilization of fast-growing herbaceous plants, of fast-growing alga, or lichen or moss to achieve carbon sequestration. The method includes a first step of planting and / or cultivating the fast-growing herbaceous plants, the fast-growing alga, the lichen or the moss in a selected land area or in a water area, a second step of carrying out harvesting or collecting when the fast-growing herbaceous plants, the fast-growing alga, the lichen or the moss grows to the appropriate height or the appropriate size after a period of time, a third step of carrying out drying on the harvested or collected plants, preferably, carrying out natural drying such as sun drying or air drying to obtain the dry plants, the dry alga, the dry lichen or the dry moss, a fourth step of transporting the dry plants, the dry alga, the dry lichen or the dry moss to a landfill and carrying out landfill, a fifth step of covering a layer of common soil on the final filled plants after the landfill is completed, and a sixth step of recovering vegetations in the landfill.

The invention discloses a hydro-fluctuation belt wetland vegetation restoration proper species screening method. The method includes: investigating region vegetation, and preliminarily selecting species suitable for region vegetation restoration from the aspects of life form and growth form of species; adopting a soil seed bank germination experiment to screen to obtain omissive proper plants; inferring proper plants for vegetation restoration of a hydro-fluctuation belt according to vegetation investigation on the hydro-fluctuation belt and the soil seed bank germination experiment of the same; performing a waterlogging tolerance experiment on the proper plants, and screening proper species for region vegetation restoration; according to waterlogging tolerance and region hydrologic changing characteristics, arranging the proper species obtained by screening, and conducting practice demonstration of vegetation restoration. The method is conducive to preventing genetic drift caused by gene flow and maintaining a gene bank of local species stable, less prone to causing intrusion of foreign species and provides technical support and scientific guidance for large-area demonstration and popularization of vegetation restoration in regions like reservoir hydro-fluctuation belts, riparian zones and tidal flat wetland.

The invention discloses a muddy saline soil forestation method. The method comprises the following steps: 1) digging drainage ditches (1) and building platform fields(15); 2) digging plant pits (3) for land preparation; 3) setting salt insulating layers (4) and basal discs (9) in the plant pits; 4) preparing sand loam soil; 5) filling the pits and transplanting the nursery stock; and 6) carrying out the fostering management. The method solves the problem of muddy saline soil forestation and greening. Through the measures of salt discharge and blockage, the method reduces the salt content in the range of the plant root system. The basal disc orientated rootage technology promotes the development of the root system, facilitates the nutrients and water absorption and unilateral salt discharge of the root system, and creates a soil environment benefiting the growth of the plant. The forestation method improves the survival rate and preservation rate of the nursery stock, and has lower cost than that of pure alien soil forestation. The method is suitable for the forestation and greening and vegetation restoration projects in the muddy saline alkali land, and can be applied to the artificial construction mixed with manual work and mechanical work.

The invention discloses a method for recovering vegetation on a strong-acid tailing waste land without soil. The method is characterized by comprising the following steps: A. performing early-stage preparations, and draining off water; B. changing the pH value of the land; C. culturing the fertility of the tailing waste land; D. screening and culturing plant varieties; and F. managing transplanted seedlings. The method has the advantages that by adopting the method for recovering the vegetation without soil, disturbance to the tailing land is reduced, and the purposes that water can be drained off, the influence of acid water to the vegetation can be alleviated, the heavy metals can be stabilized, and the living environment of plants is improved are achieved. In addition, according to the method, the cost is low, the effect taking is rapid, the effect is good and the operability is high.

The invention discloses a method for greening and restoring a hard side slope. The method comprises the steps of cleaning a slope surface, arranging an anchor rod, laying a galvanized wire mesh sheet,improving red sandstone into planting soil, laying a geomembrane, executing sowing, establishing an automatic irrigation system and executing operation and maintenance, wherein the red sandstone soillayers with different sandstone contents are improved by adding an improver, meanwhile spray heads are installed on a pre-buried spray system by utilizing an automatic control system, and planted plants are irrigated by using the spray heads. A sprinkling irrigation system can be automatically controlled according to temperature and humidity. The invention provides a hard slope greening restoration technology for improving red sandstone into planting soil. Long-term growth conditions are provided for vegetations, the ecological restoration requirements of a rock slope and a hard slope are met, slope protection greening planting plants are combined with a traditional vegetation concrete ecological-restoration technology, vegetation restoration and anchoring fixation are simultaneously carried out, and the vegetation growth on slopes and slope fixation can be better achieved.

The invention provides a preparation method of microbial agent-containing red-layer sandstone and mudstone interbedding side slope wound surface artificial soil. The microbial agent-containing red-layer sandstone and mudstone interbedding side slope wound surface artificial soil is prepared by effectively mixing the raw material ingredients of the microbial agent, red-layer sandstone or / and red-layer mudstone, farmland soil or / and natural soil, straw, livestock and poultry excrement, high-water-absorbility resin, cement, attapulgite powder and fertilizer under a certain condition. The preparation method has obvious effects of accelerating circulation of soil nutrient elements, increasing supply of soil available nutrients, improving soil physical and chemical characteristics and contributing to recovery of vegetation.

The invention relates to a method for governing a red soil strongly-eroded slope. The method comprises the following steps that (1) horizontal furrow groups are dug in a red soil strongly-eroded slope surface along all contour lines, each horizontal furrow group comprises multiple horizontal furrows, and the cross section of each horizontal furrow is trapezoid; (2) planting holes are dug between two adjacent horizontal furrows in the same horizontal furrow group, and the cross section of each planting hole is trapezoid; (3) shrubs and grass are planted in the horizontal furrows, and grass is planted in the planting holes; (4) shallow furrows are dug in the same horizontal furrow group, and water and soil conservation grass seeds are evenly sowed in the shallow furrows to form horizontal grass band chains; (5) after the environment of the strongly-eroded slope is improved one year later, trees are then planted in the horizontal furrows and the planting holes. The method is applied to water and soil loss governance and governance of ecological environment of vegetation recovery of the red soil strongly-eroded slope, water storage and soil protection performance of the slope is increased, the ecological environment good for the vegetation recovery is created, and the governance effect of a red soil strongly-eroded area is improved.

The invention discloses a rock slope vegetation restoration method, which comprises the double layer injection of carrying soil and organic matter and the combination of directly sowing seeds and arbor, shrub transplanting seedlings. The double injection bottom layer is a carrying soil layer, and the surface is an organic matter layer. The joint part of the carrying soil layer and the organic matter layer is sandwiched with a galvanized machine-made metal net fixed on a slope through a bolt. The plant fibbers and the soil improvement materials are blended inside the carrying soil layer. The soil improvement materials, the grass species as well as the arbor and shrub seeds are blended inside the organic matter layer. The arbor and shrub seedlings are transplanted inside the artificial soil layer formed by the carrying soil and the organic matter. The invention provides a new method for the ecological construction and environmental protection in China, which has great social, economic and ecological benefits.

Provided is a planting method for sandy land vegetation recovery. Planting furrows are dug perpendicular to the wind direction before vegetation is planted, straw or crop stalks or weeds are laid on the furrow bottoms of the planting furrows, then zeolite particles are laid on the straw or the crop stalks or the weeds to form a bottom filter layer; the straw or the crop stalks or the weeds are laid on the surfaces of the zeolite particles, mixtures mixed with water-retaining agents are laid on the furrow bottoms to form a water-retaining agent mixture layer, straw, white stone powder, calcium, magnesium, phosphor and organic fertilizer are added on the water-retaining agent mixture layer, and strong seedlings with the ground diameter larger than 1cm and root system length longer than 30cm are selected to be planted in the planting furrows in late autumn.

The invention provides a biologic modifier special for side slope artificial soil, which is prepared by effectively compounding and mixing a fermentation preparation of various microorganisms such as algae, fungi and the like with livestock and poultry dung, humic acid, critic acid and chitosan under a certain condition. The biologic modifier has obvious effects on promoting the microecological repair of soil, increasing the supply of available nutrient for the soil, improving the physical and chemical properties of the soil, fertilizing soil productivity and promoting revegetation.

The present invention relates to a method that uses the mesh plant biological bag to perform the slope revegetation. The steps are that the slope is cleared and leveled; the foundation of the toe of side slope is leveled and tamped; the roof bolts are fixed on the surface of the slope at a given angle; after one end of the mesh is firmly bound on the roof bolts, the mesh is flattened, and then the plant biological bags are piled on the mesh, and planting soil or gravel soil can be refilled between the plant biological bags and the surface of the slope so as to tamp the filling soil and the plant biological bag, and the other end of the mesh is collected and folded at the outer side of the piled plant biological bags so as to be fixed on the roof bolts that is arranged at the upper layer of the surface of the slope and to hold the refilling soil and the plant biological bags; after the mesh biological bags are arranged from down to up in different layers to be a given height, a penetration-resistant layer shall be arranged and is arranged between two layers of the mesh plant biological bags; the penetration-discharging pipes are uniformly distributed between the mesh plant biological bag layer and the penetration-resistant layer; after the foundation of the mesh plant biological bags is completed, seeds can be sowed or nursery stock of trees can be planted on the foundation. The present invention has simple construction, and is free from the restriction of the shape and the gradient of the slope, and has high survival rate and high coverage rate of the plant, and quick effect.

The invention discloses a preparation method of an improved greening additive for vegetation growing concrete. The additive is prepared by processing iron ore powder, calcium powder, phosphate ore powder, silicious ore powder, a compound fertilizer, a water-retaining agent, sulphur powder, an air entraining agent and sulphur bacteria. The improved greening additive is added into a vegetation growing concrete base material, so that the porosity of the vegetation growing concrete base material can be greatly increased, the pH value of the vegetation growing concrete base material can be reduced, a slope protecting greening base material of the vegetation growing concrete can be activated, and the process of recovering vegetation of a side slope can be speeded up.

The invention is applicable to the field of ecological remediation and provides a treatment method for recovering mine wasteland vegetation. The method comprises the following steps of preparing an improved suspension liquid; spraying the improved suspension liquid; performing permeation improvement; spraying and seeding soil dressing substrate and recovering vegetation. According to the treatment method, the improved suspension liquid is prepared and sprayed on the surface of a mine wasteland, and permeates and diffuses toward the deep layer of the mine wasteland by utilizing the gravity permeation effect of the improved suspension liquid, so that the purpose of deep permeation improvement is achieved, and thus acidic and heavy metal ions which are likely to be reversely permeated in the deep layer of the mine wasteland are prevented from being reversely permeated to the surface layer of the mine wasteland due to the soil capillary action; and on the basis of an improved soil layer, a vegetation layer is reestablished, grass and shrub plant seeds are sprayed and seeded, so that the purposes of realizing vegetation recovery and conserving water and soil are realized.