Urban core mountainous region waste acetylene gas plant site ecological restoration method

Abstract

The invention discloses an ecological restoration method for a waste acetylene gas plant site in an urban core mountainous region, which is characterized in that sampling analysis of soil, air, runoff pollution and heavy metals is accurately obtained through topographic surveying and mapping and topographic survey of the waste acetylene gas plant site in the urban core mountainous region, so that the waste acetylene gas plant site is subjected to soil, air and runoff pollution in the urban core mountainous region. Runoff and air pollution purification treatment is carried out, multi-year rotation tillage type ecological restoration is carried out for heavy metal residues, and a landscape place is formed. Different from the prior art that only the waste acetylene gas plant site is naturally degraded or replaced with soil from other places, the method is used for ecological restoration of the waste acetylene gas plant site in the urban core mountain land based on the aspect of habitat optimization, so that the ecological environment is comprehensively and accurately restored, soil and air are optimized through multi-year rotation tillage type ecological restoration, and the ecological environment is improved. The landscape environment with excellent biodiversity is formed.

Description

Technical Field

[0001] The invention relates to the field of ecological restoration of abandoned acetylene gas plant sites, and in particular to an ecological restoration method for abandoned acetylene gas plant sites in urban core mountainous areas. Background Art

[0002] The abandoned acetylene gas plant sites in the core urban forest green land are often overlooked in the early stage of rapid urban construction as the cancer of the core urban green land. During the long natural digestion process, the heavy metals, polluted gases and polluted water produced by such plots continue to penetrate into the surrounding urban blocks, thus seriously endangering the quality of the living environment and the health of residents in the surrounding areas. However, the existing technology only has the in-situ closure of the existing polluted sites, garbage screening and utilization, and relocation, which cannot quickly and fundamentally form the role of the ecological engine of the core urban forest. Summary of the invention

[0003] The purpose of the present invention is to provide a method for ecological restoration of abandoned acetylene gas plant sites in urban core mountainous areas to solve the above technical problems.

[0004] To achieve the above object, the present invention provides the following technical solution: a method for ecological restoration of abandoned acetylene gas plant sites in urban core mountainous areas, comprising the following steps:

[0005] Step S1: drone aerial photography and terrain mapping are performed on the abandoned acetylene gas plant site in the core mountain forest green land of the city to obtain site images and terrain maps, and the terrain plane is analyzed and processed to determine the scope of ecological restoration of the abandoned acetylene gas plant;

[0006] Step S2, conducting geological exploration on the abandoned acetylene gas plant site in the core mountain forest green land of the city, collecting soil, runoff and air sampling samples from the site, and performing component analysis on the sampled specimens, and conducting environmental assessment analysis, so as to determine the pollution components and proportions of the abandoned acetylene gas plant;

[0007] Step S3: According to the slag pile area, soil in the polluted area, runoff and air pollution information in the environmental assessment, the toxic soil of the abandoned acetylene gas plant site in the core mountain forest green land of the city is excavated, and a landscape terrace is formed according to the overall landscape layout of the urban mountain park, combined with the mountain height difference and mountain disaster safety and pollutant replacement;

[0008] Step S4: according to the above-mentioned retaining trees and replacing the terrain soil, setting up a mountain barrier-free trail, setting up a field ecological restoration flower sea according to the plants' habit of dissolving heavy metals, and planting them in the current year and replacing them year by year.

[0009] Preferably, in step S1, drone aerial photography and topographic mapping are performed on the abandoned acetylene gas plant site in the core mountain forest green land of the city to obtain the site scope and topographic data of the restoration area, which specifically includes:

[0010] Step S101, determining the core area and radiation area of ​​the pollution range according to the site range and terrain data;

[0011] Step S102, determining the range of slag piles where landslides and other geological disasters may occur according to the site range and terrain data;

[0012] Step S103: According to the site scope and terrain data, the number and species of trees and their locations are retained.

[0013] Preferably, in step S2, geological exploration is conducted on the abandoned acetylene gas plant site in the core mountain forest green land of the city, soil, runoff and air sampling samples are collected from the site, and the sampled specimens are analyzed and processed for components, and environmental assessment analysis is carried out to determine the pollution components and proportions of the abandoned acetylene gas plant, which specifically include:

[0014] Step S201, according to the composition of the garbage buried in the shallow landfill, the garbage is excavated and classified within a certain range, so as to achieve the purification treatment of the mountain pollution source;

[0015] Step S201, conducting geological exploration of the abandoned acetylene gas plant site in the core mountain forest green land of the city, collecting soil, runoff and air sampling samples from the site, analyzing and processing the sampled specimens, and carrying out environmental assessment work;

[0016] Step S202: According to the environmental assessment work, the current situation is determined through demonstration to obtain the main pollution components and range of the soil, the type, content, and distribution depth and range of heavy metals;

[0017] Step S203: According to the environmental assessment work, the current situation is determined through demonstration to obtain the corrosiveness of surface and underground runoff and the types and quantities of heavy metals and pathogenic bacteria contained therein;

[0018] Step S204: According to the environmental assessment work, the current air pollutant content and its source are determined through demonstration.

[0019] Preferably, in step S3, the toxic soil of the abandoned acetylene gas plant site in the core mountain forest green land of the city is excavated according to the slag pile area, soil in the polluted area, runoff and air pollution information in the environmental assessment, and the landscape terrace is formed according to the overall landscape layout of the urban mountain park in combination with the mountain height difference and mountain geological disaster safety and pollutant replacement, which specifically includes:

[0020] Step S301: According to the different landslide cause information inside the slag and rock pile area, the rolling rocks are cleaned and treated, and the gentle slopes in the area such as the mountain landslide are processed, so as to achieve the stability of the mountain environment and ensure the safety of the landscape area;

[0021] Step S302: According to the soil pollution range, depth information, and different heavy metal content information and organic matter information contained therein, soil excavation and terrain soil replacement are performed in the corresponding range and depth, so as to achieve soil pollutant purification;

[0022] Step S303: According to the surface and underground runoff information, digging and percolation layer processing are performed to achieve mountain water source purification;

[0023] Step S304: According to the air pollution component information, the organic matter volatilization source is excavated and replaced to achieve mountain air purification;

[0024] Step S305: Based on the overall landscape layout of the urban mountain park, the landscape terrain is constructed by replacing soil with other soils according to the terrain height difference based on the excavation and replacement of the pollution areas such as soil, runoff, and air volatilization sources. A drop-type skink terrace is set according to the natural repose angle, and covered with planting soil. Thus, a mountain ecological landscape terrace is realized.

[0025] Preferably, in step S4, according to the retention of trees and replacement of terrain soil, setting up a mountain barrier-free trail, and setting up a flower sea for site ecological restoration according to the ablation habits of plants for heavy metals, the specific treatment includes:

[0026] Step S401: setting a mountain barrier-free ramp according to the skink terrace and the mountain landscape terrace, thereby forming a recreational passage for the mountain landscape flower sea;

[0027] Step S402: selecting ecological restoration plants according to the mountain landscape flower sea, and setting annual plants to achieve water, soil and air improvement in the mountains.

[0028] Preferably, in step S402, the selection of ecological restoration plants for the mountain landscape flower sea and the setting of annual plants to achieve water, soil and air improvement in the mountain specifically include:

[0029] Step S4021, according to the mountain soil environment restoration, planting the current year verbena, so as to achieve soil consolidation, prevent soil erosion, and increase biodiversity;

[0030] Step S4022: according to the mountain soil environment restoration, the current year zinnia is arranged, so as to improve the soil structure and create a better growth environment for other plants;

[0031] Step S4023: according to the mountain air environment restoration and biodiversity environment restoration, the rapeseed flowers of the current year are arranged to absorb carbon dioxide, release oxygen, and increase the oxygen content of the plot;

[0032] Step S4024: according to the mountain soil remediation, sunflowers of the current year are arranged to improve the soil and remove organic matter and heavy metals.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] The ecological restoration method of the abandoned acetylene gas plant site in the core mountain forest green land of the city includes drone aerial photography and topographic mapping of the abandoned acetylene gas plant site in the core mountain forest green land of the city, so as to obtain site images and topographic maps, and analyze and process the topographic plane to determine the ecological restoration scope of the abandoned acetylene gas plant, the scope of slag piles with landslide and other geological disaster conditions, the number and variety of trees retained in the current situation, and the location. Conduct geological exploration of the ecological restoration scope of the abandoned acetylene gas plant in the core mountain forest green land of the city, collect soil, runoff and air sampling samples on the site, analyze and process the sampled specimens, and conduct environmental assessment analysis to determine the soil pollution components and proportions of the abandoned acetylene gas plant, the main heavy metal components and distribution. The acidity and alkalinity of surface and underground runoff, the types and quantities of pathogens contained, the PM2.5 value of the air and the content of pollutants such as H2S. According to the soil, runoff and air pollution information described in the environmental impact assessment, the site of the abandoned acetylene gas plant in the core mountain forest green land of the city is treated by excavation of toxic soil. According to the overall landscape layout of the urban mountain park, the terrain soil is replaced according to the height difference of the mountain and the situation of the slag stockpile. The terraces with continuous falls are set up with skink terraces according to the natural repose angle and covered with planting soil. According to the retention of trees and the replacement of terrain soil, mountain barrier-free trails are built, and the site ecological restoration flower sea is set up according to the ablation habits of plants for heavy metals. It is different from the existing technology that only closes, incinerates and transports the existing polluted sites. It carries out ecological restoration work based on the impact of the abandoned acetylene gas plant site on the soil, water quality and air in the core mountain forest green land of the city. Through the ecological restoration of plants that ablate heavy metals, the state of the ecological factors of the urban block is fundamentally changed, and the water, soil and air quality of the surrounding radiating urban areas are changed, forming the function of the ecological engine of the mountain forest in the core area of ​​the city. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0036] Figure 1 A schematic flow chart of the method for ecological restoration of abandoned acetylene gas plant sites in urban core mountain forests and green spaces provided by the present invention. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not 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.

[0038] See also Figure 1 The present invention provides a technical solution: an ecological restoration method for abandoned acetylene gas plants in urban core mountain green land, the method comprising the following steps:

[0039] Step S1, taking drone aerial photography and topographic mapping of the abandoned acetylene gas plant site in the core mountain forest green land of the city to obtain site images and topographic maps, and analyzing and processing the topographic plane to determine the scope of ecological restoration of the abandoned acetylene gas plant;

[0040] Step S2, conducting geological exploration on the abandoned acetylene gas plant site in the core mountain forest green land of the city, collecting soil, runoff and air sampling samples from the site, and performing component analysis on the sampled specimens, and conducting environmental assessment analysis, so as to determine the pollution components and proportions of the abandoned acetylene gas plant;

[0041] Step S3: According to the slag pile area, soil in the polluted area, runoff and air pollution information in the environmental assessment, the toxic soil of the abandoned acetylene gas plant site in the core mountain forest green land of the city is excavated, and a landscape terrace is formed according to the overall landscape layout of the urban mountain park, combined with the mountain height difference and mountain disaster safety and pollutant replacement;

[0042] Step S4: according to the above-mentioned tree retention and terrain soil replacement, a mountain barrier-free trail is set up, and according to the plant's habit of ablation of heavy metals, a field ecological restoration flower sea is set up, which is planted in the current year and replaced year by year;

[0043] Through drone aerial photography and terrain mapping, the abandoned acetylene gas plant in the city's core mountains and green spaces can conduct digital analysis of the external connections and internal characteristics of the specific distribution of the city's core mountains and forests and the abandoned acetylene gas plant, thereby facilitating the systematic improvement of the comprehensiveness and focus of the ecological restoration of the core mountains and green spaces and the abandoned acetylene gas plant.

[0044] Preferably, in step S1, drone aerial photography and topographic mapping are performed on the abandoned acetylene gas plant site in the core mountain forest green land of the city to obtain the site scope and topographic data of the restoration area, which specifically includes:

[0045] Step S101, determining the core area and radiation area of ​​the pollution range according to the site scope and terrain data;

[0046] Step S102, determining the range of slag piles with landslide and other geological disaster conditions according to the site range and terrain data;

[0047] Step S103, according to the scope and topographic data of the site, the number and species of trees to be retained, and the locations;

[0048] Through geological exploration and environmental assessment analysis of the abandoned acetylene gas plant in the city's core mountains and green spaces, we can accurately obtain the scope and causes of pollution caused by the abandoned acetylene gas plant's waste, thereby improving the efficiency of soil ecological restoration.

[0049] Preferably, in step S2, geological exploration is conducted on the abandoned acetylene gas plant site in the core mountain forest green land of the city, soil, runoff and air sampling samples are collected from the site, and the sampled specimens are analyzed and processed for components, and environmental assessment analysis is carried out to determine the pollution components and proportions of the abandoned acetylene gas plant;

[0050] Step S201: Conduct geological exploration on the abandoned acetylene gas plant site in the core mountain forest green land of the city, collect soil, runoff and air sampling samples from the site, analyze the components of the sampled specimens, and carry out environmental assessment work;

[0051] Step S202: According to the environmental assessment work, the current situation is determined through demonstration to obtain the main pollution components and range of the soil, the type, content and distribution depth range of heavy metals.

[0052] Evaluation of water corrosion on concrete structures by environment type

[0053]

[0054] List of surface water monitoring and evaluation results

[0055]

[0056] Step S205 determines the current odor concentration and the type, location and content of gas pollution sources based on the environmental assessment work.

[0057] List of current monitoring results of air environment quality

[0058]

[0059] Since the abandoned acetylene gas plant in the city's core mountain forest and green space has different impacts on the surrounding soil, runoff, and air during use, classified excavation and terrain shaping with preset depth and width are carried out based on the distribution and impact of different causes of pollution sources, so as to facilitate comprehensive and accurate ecological restoration.

[0060] Preferably, in step S3, the toxic soil of the abandoned acetylene gas plant site in the core mountain forest green land of the city is excavated according to the slag pile area, soil in the polluted area, runoff and air pollution information in the environmental assessment, and the landscape terrace is formed according to the overall landscape layout of the urban mountain park in combination with the mountain height difference and mountain disaster safety and pollutant replacement, which specifically includes:

[0061] Step S301: According to the different landslide cause information inside the slag pile area, the rolling rocks are cleaned and treated, and the gentle slopes in the mountain landslide area are processed, so as to achieve the stability of the mountain environment and ensure the safety of the landscape area;

[0062] Step S302: According to the soil pollution range, depth information, and different heavy metal content information and organic matter information contained therein, soil excavation and terrain soil replacement are performed in the corresponding range and depth, thereby achieving soil pollutant purification;

[0063] Step S303: According to the surface and underground runoff information, digging and percolation layer processing are performed to achieve mountain water source purification;

[0064] Step S304: According to the air pollution component information, the organic matter volatilization source is excavated and replaced to achieve mountain air purification;

[0065] Step S305: Based on the overall landscape layout of the city's mountain park, the landscape terrain is constructed by replacing soil with other soils according to the terrain height difference based on the excavation and replacement of pollution areas such as soil, runoff, and air volatilization sources. A drop-type skink terrace is set according to the natural repose angle, and covered with planting soil. Thus, a mountain ecological landscape terrace is realized;

[0066] Step S306: According to the mountain ecological landscape terrace, the original roots of the trees are retained and filled with planting soil within 1.8 meters, so as to achieve the retention and integration of the original trees;

[0067] The ecological restoration of the abandoned acetylene gas plant in the city's core mountain forest and green space carries out multi-year ecological restoration through targeted treatment of site pollution components, and selects different plant varieties for absorption and improvement, thereby facilitating targeted water, soil, and air restoration and improvement of the abandoned acetylene gas plant. While improving effectiveness, it also provides popular check-in attractions such as flower fields for surrounding residents.

[0068] Preferably, in step S4, the specific processing of setting up a mountain barrier-free trail according to the terraced land for preserving mountain ecological landscape and setting up a flower sea for ecological restoration of the site according to the ablation habits of plants for heavy metals includes:

[0069] Step S401: setting a mountain barrier-free ramp according to the skink terrace and the mountain landscape terrace, thereby forming a recreational passage for the mountain landscape flower sea;

[0070] Step S402: selecting ecological restoration plants according to the mountain landscape flower sea, and setting annual plants to achieve improvement of water, soil, air, and biodiversity in the mountain;

[0071] Step S4021, according to the mountain soil, air environment restoration, relying on perennial ecological restoration varieties and then planting current year verbena, so as to achieve soil consolidation, prevent soil erosion, and supplement biodiversity;

[0072] Step S4021: According to the mountain soil environment restoration, the current year zinnias are arranged based on perennial ecological restoration varieties, thereby improving the soil structure and creating a better growth environment for other plants;

[0073] Step S4021: According to the restoration of the mountain air environment and the biodiversity environment, the current year rapeseed flowers are planted based on perennial ecological restoration varieties, thereby absorbing carbon dioxide, releasing oxygen, and increasing the oxygen content of the plot;

[0074] Step S4021, according to the mountain soil restoration, the sunflowers of the current year are set to improve the soil and remove organic matter and heavy metals.

[0075] List of perennial plants for ecological restoration

[0076]

[0077] Perennial heavy metal hyperaccumulation varieties

[0078]

[0079] Environmental Protection Agency Monitoring Indicators

[0080]

[0081] From the content of the above embodiment, it can be known that the ecological restoration method of the abandoned acetylene gas plant site in the core mountain forest green land of the city includes drone aerial photography and topographic mapping of the abandoned acetylene gas plant site in the core mountain forest green land of the city, so as to obtain the site image and topographic map, and analyze and process the topographic plane, so as to determine the ecological restoration scope of the abandoned acetylene gas plant, the scope of slag piles with landslide and other geological disaster conditions, the number and variety of trees retained at present, and the location. Conduct geological exploration of the ecological restoration scope of the abandoned acetylene gas plant in the core mountain forest green land of the city, collect soil, runoff and air sampling samples of the site, analyze and process the sampled specimens, and carry out environmental assessment analysis to determine the soil pollution components and proportions of the abandoned acetylene gas plant, the main heavy metal components and distribution. The acidity and alkalinity of surface and underground runoff and the types and quantities of pathogens contained, the PM2.5 value of the air and the content of pollutants such as H2S. According to the soil, runoff and air pollution information described in the environmental assessment, the abandoned acetylene gas plant site in the core mountain forest green land of the city is excavated for toxic soil treatment. According to the overall landscape layout of the urban mountain park, the terrain soil is replaced according to the height difference of the mountain and the situation of the slag pile yard. The continuously falling terraces are set up with skink terraces according to the natural repose angle and covered with planting soil. According to the retention of trees and the replacement of terrain soil, mountain barrier-free trails are built, and the site ecological restoration flower sea is set up according to the ablation habits of plants for heavy metals. It is different from the existing technology that only closes the site of the existing polluted site and classifies the excavation. It carries out ecological restoration work based on the impact of the abandoned acetylene gas plant site on the soil, water quality and air in the core mountain forest green land of the city. Through the plant ecological restoration of heavy metal ablation, the soil, air and runoff improvement of different plant varieties for many years, the state of ecological factors in the urban block is fundamentally changed, the water, soil and air quality of the surrounding radiating urban areas are changed, and the surrounding mountain disaster risks are eliminated while the biodiversity state is supplemented. And finally, the function of the mountain forest ecological engine in the core area of ​​the city is formed.

[0082] In the description of the present invention, it is necessary to understand that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0083] In the present invention, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the present invention according to the specific circumstances.

[0084] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes may be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A method for ecological restoration of abandoned acetylene gas plant sites in urban core mountainous areas, characterized in that: The steps include: Step S1: drone aerial photography and terrain mapping are performed on the abandoned acetylene gas plant site in the core mountain forest green land of the city to obtain site images and terrain maps, and the terrain plane is analyzed and processed to determine the scope of ecological restoration of the abandoned acetylene gas plant; Step S2, conducting geological exploration on the abandoned acetylene gas plant site in the core mountain forest green land of the city, collecting soil, runoff and air sampling samples from the site, and performing component analysis on the sampled specimens, and conducting environmental assessment analysis, so as to determine the pollution components and proportions of the abandoned acetylene gas plant; Step S3: According to the slag pile area, soil in the polluted area, runoff and air pollution information in the environmental assessment, the toxic soil of the abandoned acetylene gas plant site in the core mountain forest green land of the city is excavated, and a landscape terrace is formed according to the overall landscape layout of the urban mountain park, combined with the mountain height difference and mountain disaster safety and pollutant replacement; Step S4: according to the above-mentioned retaining trees and replacing the terrain soil, setting up a mountain barrier-free trail, setting up a field ecological restoration flower sea according to the plants' habit of dissolving heavy metals, and planting them in the current year and replacing them year by year.

2. The method for ecological restoration of abandoned acetylene gas plant sites in urban core mountainous areas according to claim 1 is characterized by: In step S1, drone aerial photography and topographic mapping are performed on the abandoned acetylene gas plant site in the core mountain forest green land of the city to obtain the site scope and topographic data of the restoration area, including: Step S101, determining the core area and radiation area of ​​the pollution range according to the site range and terrain data; Step S102, determining the range of slag piles where landslides and other geological disasters may occur according to the site range and terrain data; Step S103: According to the site scope and terrain data, the number and species of trees and their locations are retained.

3. The method for ecological restoration of abandoned acetylene gas plant sites in urban core mountainous areas according to claim 1 is characterized by: In step S2, geological exploration is conducted on the abandoned acetylene gas plant site in the core mountain forest green land of the city, soil, runoff and air sampling samples are collected from the site, and the sampled specimens are analyzed and processed for components, and environmental assessment analysis is carried out to determine the pollution components and proportions of the abandoned acetylene gas plant, including: Step S201, according to the composition of the garbage buried in the shallow landfill, the garbage is excavated and classified within a certain range, so as to achieve the purification treatment of the mountain pollution source; Step S201, conducting geological exploration of the abandoned acetylene gas plant site in the core mountain forest green land of the city, collecting soil, runoff and air sampling samples from the site, analyzing and processing the sampled specimens, and carrying out environmental assessment work; Step S202: According to the environmental assessment work, the current situation is determined through demonstration to obtain the main pollution components and range of the soil, the type, content, and distribution depth and range of heavy metals; Step S203: According to the environmental assessment work, the current situation is determined through demonstration to obtain the corrosiveness of surface and underground runoff and the types and quantities of heavy metals and pathogenic bacteria contained therein; Step S204: According to the environmental assessment work, the current air pollutant content and its source are determined through demonstration.

4. The method for ecological restoration of abandoned acetylene gas plant sites in urban core mountainous areas according to claim 1 is characterized by: In step S3, the toxic soil of the abandoned acetylene gas plant site in the core mountain forest green land of the city is excavated according to the slag pile area, soil in the polluted area, runoff and air pollution information in the environmental assessment, and the landscape terrace is formed according to the overall landscape layout of the urban mountain park, combined with the mountain height difference and mountain disaster safety and pollutant replacement, which specifically includes: Step S301: According to the different landslide cause information inside the slag and rock pile area, the rolling rocks are cleaned and treated, and the gentle slopes in the area such as the mountain landslide are processed, so as to achieve the stability of the mountain environment and ensure the safety of the landscape area; Step S302: According to the soil pollution range, depth information, and different heavy metal content information and organic matter information contained therein, soil excavation and terrain soil replacement are performed in the corresponding range and depth, so as to achieve soil pollutant purification; Step S303: According to the surface and underground runoff information, digging and percolation layer processing are performed to achieve mountain water source purification; Step S304: According to the air pollution component information, the organic matter volatilization source is excavated and replaced to achieve mountain air purification; Step S305: Based on the overall landscape layout of the urban mountain park, the landscape terrain is constructed by replacing soil with other soils according to the terrain height difference based on the excavation and replacement of the pollution areas such as soil, runoff, and air volatilization sources. A drop-type skink terrace is set according to the natural repose angle, and covered with planting soil. Thus, a mountain ecological landscape terrace is realized.

5. The method for ecological restoration of abandoned acetylene gas plant sites in urban core mountainous areas according to claim 1 is characterized by: In step S4, according to the retention of trees and replacement of terrain soil, setting up mountain barrier-free trails, and setting up a flower sea for site ecological restoration according to the ablation habits of plants for heavy metals, the specific treatment includes: Step S401: setting a mountain barrier-free ramp according to the skink terrace and the mountain landscape terrace, thereby forming a recreational passage for the mountain landscape flower sea; Step S402: selecting ecological restoration plants according to the mountain landscape flower sea, and setting annual plants to achieve water, soil and air improvement in the mountains.

6. The method for ecological restoration of abandoned acetylene gas plant sites in urban core mountainous areas according to claim 5 is characterized by: In step S402, the selection of ecological restoration plants for the mountain landscape flower sea and the setting of annual plants to achieve water, soil and air improvement in the mountain specifically include: Step S4021, according to the mountain soil environment restoration, planting the current year verbena, so as to achieve soil consolidation, prevent soil erosion, and increase biodiversity; Step S4022: according to the mountain soil environment restoration, the current year zinnia is arranged, so as to improve the soil structure and create a better growth environment for other plants; Step S4023: according to the mountain air environment restoration and biodiversity environment restoration, the rapeseed flowers of the current year are arranged to absorb carbon dioxide, release oxygen, and increase the oxygen content of the plot; Step S4024: according to the mountain soil remediation, sunflowers of the current year are arranged to improve the soil and remove organic matter and heavy metals.

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