A method for constructing a Callicarpa serrata community in disturbed green land

Abstract

The present invention discloses a construction method of a disturbed green space Callicarpa oleracea community, comprising the following steps: S1. preparing Callicarpa oleracea dead leaves: plucking fresh Callicarpa oleracea leaves, drying them in an oven, compressing and packing them for storage; S2. arranging the disturbed green space: removing weeds and gravel from the disturbed green space, plowing 5-10cm, sprinkling Callicarpa oleracea dead leaves to cover, watering and soaking the dead leaves, and then covering with a black film for 3-5 days. S3. planting Callicarpa oleracea: removing the black film, selecting Callicarpa oleracea of ​​a pioneer tree species with a plant height of 1.5-3 meters; after 6 months of field planting, applying compound fertilizer once, conventional watering and pest control; S4. after an interval of 1 year, pruning dry or weak branches in the forest, planting shrub Callicarpa oleracea in the plant forest and forest edge, and planting transition plants at the edge of the planting area. The present invention utilizes the allelopathic effect of the plant itself to prevent Mikania micrantha from breeding; adopting the concept of pioneer tree species, first planting fast-growing, barren-resistant and native (domestic) species, and resisting the spread of Mikania micrantha in the early stage through the growth rate advantage.

Description

Technical Field

[0001] The present invention relates to the technical field of vegetation restoration, and in particular to a method for constructing a Callicarpa oleracea community in a disturbed green space. Background Art

[0002] The genus Callicarpa belongs to the Verbenaceae family and was later transferred to the Lamiaceae family (APG system) of the order Tubulariaceae, along with the subfamily Vitexoideae. The genus comprises over 190 species, with approximately 46 species found in my country. These species are primarily distributed south of the Yangtze River, often found in woodlands and shrublands on hillsides ranging from plains to elevations of 1,500 meters. Callicarpa species are common native plants in South my country, boasting captivating corolla colors and forms, and abundant fruit hanging from branches in autumn and winter. Their nectar glands and fruits are also popular with various forest birds, making them important bird attractors. They are also being developed and utilized as landscape plants for both flower and fruit viewing.

[0003] Green spaces formed by human activities such as road construction, scenic spot creation, and facility construction that destroy original vegetation are called disturbed green spaces. Mikania micrantha is an extremely environmentally hazardous invasive plant. It grows rapidly and has a wide distribution. Field surveys have shown that Mikania micrantha only invades areas where the original vegetation has been severely damaged, and does not invade primary forests or secondary forests with high canopy density. In other words, the greater the intensity of human disturbance in an area (such as disturbed green spaces), the more likely Mikania micrantha to spread. Therefore, Mikania micrantha poses a major threat to the restoration of vegetation in disturbed green spaces.

[0004] Currently, methods for controlling Mikania micrantha include physical removal, chemical control, and community modification. Preliminary exploration has also been conducted into controlling natural enemies and allelopathic control. However, challenges remain regarding effectiveness, cost, and environmental protection, and a stable and effective control strategy has yet to be established. A solution has yet to be found for how to apply phytoremediation methods to prevent the invasion of Mikania micrantha during the initial development of disturbed green spaces, while simultaneously maintaining a stable, biodiverse landscape community. Summary of the Invention

[0005] In order to overcome the above-mentioned defects, the present invention aims to provide a method for constructing a disturbed green space Callicarpa (Latin genus name: Callicarpa) community.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] The present invention provides a method for constructing a Callicarpium sibiricum community in a disturbed green space, comprising the following steps:

[0008] S1. Preparation of dead leaves of Callicarpa: fresh leaves of Callicarpa were picked, oven-dried, compressed and packaged for storage;

[0009] S2. Clean up the disturbed green space: Remove weeds and gravel from the disturbed green space, till the ground 5-10 cm deep, sprinkle with dead Callicarpa leaves, water thoroughly, and then cover with black film for 3-5 days.

[0010] S3. Planting Purple Bead: Remove the black film and select pioneer Purple Bead trees with a plant height of 1.5-3 meters. Plant them in rows with a spacing of 1.0-1.5 meters. After 6 months of planting, apply compound fertilizer once, water regularly, and manage pests and diseases.

[0011] S4. After a one-year interval, prune dry or weak branches in the forest, plant shrubs of beautyberry between plants and on the edge of the forest, and plant transitional plants on the edge of the planting area.

[0012] Furthermore, the callicarp picked in step S1 is selected from one or more of callicarp, callicarp bigleaf, callicarp naked flower, callicarp old crow paste, callicarp Chinese, callicarp Japanese, callicarp Korean, callicarp vine, callicarp Guangdong and callicarp Duhonghua.

[0013] Furthermore, the dried leaves of Callicarpa spp. prepared in step S1 contain verbascoside, forsythiaside B and isoverascoside, and the verbascoside, forsythiaside B and isoverascoside have the effect of inhibiting the growth of Mikania micrantha.

[0014] Furthermore, in step S1, the time for picking fresh leaves of Callicarpa oleifera is from August to October, the temperature of the oven is 60° C., and the time for the oven baking is from 6 to 10 hours.

[0015] Furthermore, in step S2, the thickness of the covering with dead leaves of Callicarpa oleifera is 3-5 cm.

[0016] Furthermore, the pioneer species of Callicarpa spp. selected in step S3 is one or more of Callicarpa spp., Callicarpa nudiflora and Callicarpa cantonensis.

[0017] Furthermore, the method of applying compound fertilizer in step S3 is strip application, and the specific steps of the strip application are: digging a 10 cm wide and 5 cm deep trench between the rows, and evenly spreading compound fertilizer at a standard of 200-400 g per plant.

[0018] Furthermore, the method for pruning dry or weak branches in step S4 is to remove branches below 1.5 meters and leave only the main trunk.

[0019] Furthermore, the shrubby Callicarpa planted in step S4 is selected from one or more of Callicarpa slender-leaved, Callicarpa sparse-toothed, Callicarpa short-stalked, Callicarpa oleracea, Callicarpa chinensis, Callicarpa japanese, Callicarpa koreana and Callicarpa duhonghua, and the crown width of the shrubby Callicarpa is 50-100 cm.

[0020] Furthermore, the transitional plants planted in step S4 are selected from one or more of Nephrolepis chinensis, Trachelospermum jasminoides, Euphorbia milii and Pseudolarix pumila.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention utilizes the allelopathic effect of the plant itself to prevent the growth of Mikania micrantha;

[0023] 2. The most destructive characteristic of Mikania micrantha is that it quickly covers plants, causing them to lack sunlight and be unable to photosynthesize normally and die. The present invention adopts the concept of pioneer tree species, first planting fast-growing, barren-resistant and native (domestic) species. By taking advantage of their growth rate, they create a larger canopy density, inhibit the photosynthesis and climbing ability of Mikania micrantha, and prevent the early spread of Mikania micrantha.

[0024] 3. The present invention uses dead leaves of Callicarpa serrata to cover the dead leaves of Callicarpa serrata. 29 H 36 O 15 , Forsythiaside BC 34 H 44 O 19 and isocarpus glycoside C 29 H 36 O 15 The relative content of these three substances and their derivatives is relatively high. Unlike the previous use of the strong biological activity of these three substances for anti-inflammation, immune enhancement, anti-hypoxia, free radical scavenging, etc., the present invention found that the use of dead leaves of Callicarpa micrantha containing these three substances can inhibit the rooting, growth and climbing of Mikania micrantha, and the effect is good, which has been confirmed by control experiments.

[0025] 4. The present invention uses dead leaves of Callicarpa oleracea for covering and is planted with pioneer Callicarpa oleracea, eliminating the need to manually remove Mikania micrantha, thus saving labor and reducing investment.

[0026] 5. In the plant community construction of the present invention, tall plants are planted first, followed by short plants, forming a plant community with clear layers and reasonable structure;

[0027] 6. The present invention adopts multiple varieties of Callicarpa oleracea to avoid the ecological fragility of a single forest (pure forest) and matches them with transitional creeping ground cover herbs to avoid plants being "barefoot" and create a good landscape;

[0028] 7. This invention refers to the botanical garden's specialized garden method to create plant-specific plots to showcase plant landscapes, scientific content, and biodiversity;

[0029] 8. The present invention adopts the method of constructing plant communities for the first time, achieving both prevention and control of Mikania micrantha and landscape creation, killing two birds with one stone. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0031] Figure 1 Comparison of the extract of Callicarpa oleifera leaves and water culture of Mikania micrantha for 48 hours in Example 1 Figure 1 ;

[0032] Figure 2 Comparison of the extract of Callicarpa oleifera leaves and water culture of Mikania micrantha for 48 hours in Example 1 Figure 2 ;

[0033] Figure 3 This is a comparison chart of the use of the Callicarpa oleifera leaf extract and the water culture of Mikania micrantha for 96 hours in Example 1;

[0034] Figure 4 This is a comparison chart of the use of the extract of Callicarpa serrata leaves and the water culture of Mikania micrantha for 15 days in Example 1;

[0035] Figure 5 This is a schematic diagram of the planting plan;

[0036] Figure 6 For example 2 pioneer forest (planting pioneer species of Callicarpa oleracea) actual Figure 1 ;

[0037] Figure 7 For Example 3 Pioneer Forest Actual Figure 2 ;

[0038] Figure 8 For example 2, the specialized garden (according to Figure 5 Schematic diagram of the actual Figure 1 ;

[0039] Figure 9 The actual situation of the specialized garden in Example 3 Figure 2 . DETAILED DESCRIPTION

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the embodiments and accompanying drawings. It should be understood that the specific embodiments described herein are merely for the purpose of explaining the present invention and are not intended to limit the present invention. The present invention is described in detail below in conjunction with the specific embodiments.

[0041] The embodiment of the present invention provides a method for constructing a Callicarpium sibiricum community in a disturbed green space, comprising the following steps:

[0042] S1. Preparation of dead leaves of Callicarpa: fresh leaves of Callicarpa were picked, oven-dried, compressed and packaged for storage;

[0043] S2. Clean up the disturbed green space: Remove weeds and gravel from the disturbed green space, till the ground 5-10 cm deep, sprinkle with dead Callicarpa leaves, water thoroughly, and then cover with black film for 3-5 days.

[0044] S3. Planting Purple Bead: Remove the black film and select pioneer Purple Bead trees with a plant height of 1.5-3 meters. Plant them in rows with a spacing of 1.0-1.5 meters. After 6 months of planting, apply compound fertilizer once, water regularly, and manage pests and diseases.

[0045] S4. After a one-year interval, prune dry or weak branches in the forest, plant shrubs of beautyberry between plants and on the edge of the forest, and plant transitional plants on the edge of the planting area.

[0046] Wherein, in the construction method of the present invention, step S1 prepares dead leaves of Callicarpa oleracea, step S2 covers the dead leaves of Callicarpa oleracea on the disturbed green land and waters it thoroughly, utilizing the allelopathic effect of the plant itself, which can prevent the growth of Mikania micrantha, and then in step S3, first plant Callicarpa oleracea of ​​the pioneer species, which grows rapidly, is resistant to poverty and is a native (domestic) species, and resists the spread of Mikania micrantha in the early stage through its growth rate advantage. These two steps combine dead leaf covering with pioneer species planting, and there is no need to manually pull out Mikania micrantha, saving labor and reducing investment. Steps S3 and S4 first plant tall plants (callicarpa oleracea of ​​the pioneer species) and then plant low plants (shrub callicarpa), forming a plant community with clear layers and reasonable structure, and adopting a variety of Callicarpa oleracea to avoid the ecological fragility of a single forest (pure forest), and match transitional creeping ground cover herbs to avoid the plant being "barefoot" and create a good landscape. The present invention refers to the method of specialized gardens in botanical gardens to create plant-specific plots to showcase plant landscapes, scientific connotations, and biodiversity. In addition, the present invention adopts the method of plant community construction for the first time, achieving both prevention and control of Mikania micrantha and landscape creation at the same time, killing two birds with one stone.

[0047] Among them, plant allelopathy is the release of allelopathic substances produced by plants into the environment during their growth process, which has a direct or indirect impact on other surrounding plants. Allelopathy is a way for plants to communicate with each other and is a common phenomenon in ecosystems. Almost all plants can produce substances containing allelopathic components and can have varying degrees of impact on other species. Plants can improve their competitiveness against other individuals through allelopathic effects. This interaction is a survival strategy adopted by plants in the long-term evolution process for niche elements such as competition for light, water, nutrients and space. Usually, during the process of growth and development, plants release allelopathic substances into the environment through volatilization and leaching from stems and leaves and secretion from roots, and then enter the soil through leaching such as rainwater and fog droplets, directly or indirectly affecting the growth of other plants and microorganisms. This plays an important role in the competition and replacement of invasive plants and native plants.

[0048] Specialized gardens, organized by plant classification, geographic distribution, ecology, and purpose, showcase the regional characteristics of botanical gardens, the level of scientific research, and the art of gardening. With the advancement of society, specialized gardens are no longer limited to simply collecting species and displaying plants, but are becoming increasingly diverse and complex. While specialized gardens originated from botanical garden plant arrangement, they can also be applied in various garden construction projects.

[0049] Specifically, the Callicarpia scabra picked in step S1 is selected from one or more of Callicarpia scabra, Callicarp macrophylla, Callicarp nudiflora, Callicarp oleracea, Callicarp sinophylla, Callicarp japonica, Callicarp Koreana, Callicarp vine, Callicarp Guangdong and Callicarp duhonghua.

[0050] Specifically, the dried leaves of Callicarpa strychnine prepared in step S1 contain verbascoside, forsythiaside B and isoverascoside, which have the effect of inhibiting the growth of Mikania micrantha. Previous studies mainly used the strong biological activity of these three substances to use them for anti-inflammatory, immune enhancement, anti-hypoxia, free radical scavenging, etc. The present invention uses these three substances in the dried leaves of Callicarpa strychnine to inhibit the rooting and climbing of Mikania micrantha (in another embodiment, verbascoside C can also be used). 29 H 36 O 15 , Forsythiaside BC 34 H 44 O 19 and isocarpus glycoside C 29 H 36 O 15 Directly inhibit the rooting and climbing of Mikania micrantha).

[0051] Specifically, the time for picking fresh Callicarpa leaves in step S1 is from August to October, when the leaves contain more flavonoids and terpenoids, and the amount of verbascoside C 29 H36 O 15 , Forsythiaside BC 34 H 44 O 19 and isocarpus glycoside C 29 H 36 O 15 The content is relatively high, the oven baking temperature is 60 ° C, and the oven baking time is 6-10 hours. The leaves dried at this temperature and time can be used to prepare purple bead leaves similar to natural dead leaves.

[0052] Specifically, the thickness of the dead leaves of Callicarpa oleracea covering in step S2 is 3-5 cm. Watering the dead leaves of Callicarpa oleracea with such a thickness can inhibit the climbing of Mikania micrantha by exerting allelopathic effects.

[0053] Specifically, the pioneer tree species of Callicarpa gracilis selected in step S3 is one or more of Callicarpa macrophylla, Callicarpa nudiflora and Callicarpa cantonensis. The pioneer tree species is selected to increase its density and biomass. At the same time, the presence of flavonoids and terpenoids in the epidermis and leaves of Callicarpa gracilis jointly inhibits the climbing of Camellia micrantha through allelopathic effects.

[0054] Specifically, the method of applying compound fertilizer in step S3 is strip application, and the specific steps of strip application are: digging a 10 cm wide and 5 cm deep trench between the rows, and evenly spreading compound fertilizer at a standard of 200-400 g per plant.

[0055] Specifically, the method for pruning dry or weak branches in step S4 is to remove branches below 1.5 meters and leave only the main trunk.

[0056] Specifically, the shrubby Callicarpa planted in step S4 is selected from one or more of Callicarpa slender-leaved, Callicarpa sparse-toothed, Callicarpa short-stalked, Callicarpa oleracea, Callicarpa sinensis, Callicarpa japanese, Callicarpa koreana and Callicarpa duhonghua, and the crown width of the shrubby Callicarpa is 50-100 cm.

[0057] Specifically, the transitional plants planted in step S4 are selected from one or more of Nephrolepis chinensis, Trachelospermum jasminoides, Euphorbia milii and Pseudobulbus pubescens.

[0058] Example 1 Inhibition of the Growth of Mikania micrantha by the Extract of Dried Leaves of Callicarpa

[0059] 1. Prepare dead leaves of Callicarpa oleracea. In August, fresh leaves of Callicarpa oleracea (dead leaves come from Callicarpa oleracea, Callicarpa macrophylla, Callicarpa nudiflora, Callicarpa chinensis, and Callicarpa chinensis) were harvested and dried in an oven (60°C for 10 hours). The leaves were compressed and packaged for storage.

[0060] 2. Use ultrapure water to extract the dried leaves of Callicarpa oleracea prepared in 1, with a solid-liquid ratio of 20:1, an extraction temperature of 60°C, and an extraction time of 1 hour to obtain a dried leaf extract of Callicarpa oleracea;

[0061] 3. Take Mikania micrantha plants and place them in the extract of dead leaves of Callicarpa oleifera prepared in 2 and in water and culture them for 48h, 96h and 15d respectively. The results are shown in Table 2. Figure 1-4 .

[0062] from Figure 1-3 It can be seen that the growth of Mikania micrantha cultured in the extract of dead leaves of Callicarpa spp. is poorer than that of Mikania micrantha cultured in clean water for 48 hours. There are fewer roots at the nodules, the root tips are shrunken, and more leaves are withered. This phenomenon can be clearly seen after 15 days of culture, which shows that the extract of dead leaves of Callicarpa spp. has an inhibitory effect on the growth of Mikania micrantha.

[0063] Example 2

[0064] Planting in the Podocarpus garden at Xianhu Botanical Garden, the Baiguo Garden, and the Shenzhen Xiaping Environmental Garden follows these steps:

[0065] 1. Prepare dead leaves of Callicarpa oleracea. In August, fresh leaves of Callicarpa oleracea (dead leaves come from Callicarpa oleracea, Callicarpa macrophylla, Callicarpa nudiflora, Callicarpa chinensis, and Callicarpa chinensis) were harvested and dried in an oven (60°C for 10 hours). The leaves were compressed and packaged for storage.

[0066] 2. Clean up the disturbed green space. Remove weeds, gravel, etc. from the disturbed green space, plow the ground to 5 cm, sprinkle dead leaves of Callicarpa oleracea (5 cm thick) as a cover, water thoroughly, and then cover with black film for 3 days;

[0067] 3. Plant purple plants. Remove the black film and select purple plants (Callaria macrophylla, Callaria nudiflora, and Calleria oleracea) that are 3 meters tall. Plant them with a row spacing of 1.0 meters. After 6 months of planting, apply compound fertilizer once using the strip application method. That is, dig a 10 cm wide and 5 cm deep trench between the rows and evenly sprinkle compound fertilizer at a standard of 400 g per plant. Water regularly and control pests and diseases.

[0068] 4. After one year, prune the dry or weak branches in the forest (remove branches below 1.5 meters and leave only the main trunk). Figure 5 The planting plan diagram shows that purple bead, sparse-toothed bead, slender-stalked bead, old crow paste, Chinese bead and Japanese bead are planted among the plants and on the edge of the forest, with a crown width of 50-100cm. Transitional plants such as kidney fern, trachelospermum, ground bead and ficus pumila are planted on the edge of the planting area.

[0069] Pioneer forest (planting pioneer species of Callicarpa oleracea) see Figure 6 , Specialized Gardens (by Figure 5 Schematic diagram after planting is completed) Figure 8 .

[0070] Example 3

[0071] Planting in the Podocarpus garden at Xianhu Botanical Garden, the Baiguo Garden, and the Shenzhen Xiaping Environmental Garden follows these steps:

[0072] 1. Prepare dead leaves of Callicarpa oleracea. In October, harvest fresh leaves from Callicarpa oleracea (dead leaves come from Callicarpa oleracea, Callicarpa macrophylla, Callicarpa nudiflora, Callicarpa chinensis, and Callicarpa chinensis), dry them in an oven (60°C for 6 hours), compress and pack them for later use.

[0073] 2. Clean up the disturbed green space. Remove weeds, gravel, etc. from the disturbed green space, plow the ground to 10 cm, sprinkle dead leaves of Callicarpa oleracea (3 cm thick) as a cover, water thoroughly, and then cover with black film for 5 days.

[0074] 3. Plant purple plants. Remove the black film and select purple plants (Callaria macrophylla, Callaria nudiflora, and Calleria oleracea) that are 1.5 meters tall. Plant them with a row spacing of 1.5 meters. Six months after planting, apply compound fertilizer once using the strip-dressing method. Dig a 10 cm wide and 5 cm deep trench between the rows and evenly sprinkle compound fertilizer at a rate of 200 g per plant. Water regularly and manage pests and diseases.

[0075] 4. After one year, prune the dry or weak branches in the forest (remove branches below 1.5 meters and leave only the main trunk). Figure 3 The planting plan diagram shows that purple bead, sparse-toothed bead, slender-stalked bead, old crow paste, Chinese bead and Japanese bead are planted among the plants and on the edge of the forest, with a crown width of 50-100cm. Transitional plants such as kidney fern, trachelospermum, ground bead and ficus pumila are planted on the edge of the planting area.

[0076] Pioneer forest (planting pioneer species of Callicarpa oleracea) see Figure 7 , Specialized Gardens (by Figure 5 Schematic diagram after planting is completed) Figure 9 .

[0077] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A method for constructing a Callicarpa oleracea community in disturbed green space, characterized in that: The disturbed green space Callicarpa community is used to inhibit the growth of Mikania micrantha in the disturbed green space, and the method for constructing the disturbed green space Callicarpa community comprises the following steps: S1. Preparation of Callicarpa leaves: Pick fresh Callicarpa leaves, oven-dry, compress and pack for storage. The prepared Callicarpa leaves contain verbascoside, forsythiaside B and isoverascoside, which have the effect of inhibiting the growth of Mikania micrantha. S2. Clean the disturbed green space: Remove weeds and gravel from the disturbed green space, till the ground to a depth of 5-10 cm, sprinkle with dead Callicarpa leaves, water thoroughly, and then cover with black film for 3-5 days. S3. Planting Purple Betel: Remove the black film and select pioneering Purple Betel trees 1.5-3 meters tall, planting them in rows 1.0-1.5 meters apart. Six months after planting, apply compound fertilizer once, water regularly, and manage pests and diseases. S4. After a one-year interval, prune dry or weak branches in the forest, plant shrubs of beautyberry between plants and at the edge of the forest, and plant transitional plants at the edge of the planting area.

2. The method for constructing a disturbed green space Callicarpa sempervirens community according to claim 1, wherein: The Callicarpa spp. picked in step S1 is selected from one or more of Callicarpa macrophylla, Callicarpa nudiflora, Callicarpa oleracea, Callicarpa chinensis, Callicarpa japonica, Callicarpa koreana, Callicarpa vine, Callicarpa guangdongensis and Callicarpa duhonghua.

3. The method for constructing a disturbed green space Callicarpa sempervirens community according to claim 1, wherein: In step S1, the time for picking fresh leaves of Callicarpa oleifera is from August to October, the temperature for baking in the oven is 60° C., and the baking time is from 6 to 10 hours.

4. The method for constructing a disturbed green space Callicarpa sempervirens community according to claim 1, wherein: In step S2, the thickness of the covering with dead leaves of Callicarpa oleifera is 3-5 cm.

5. The method for constructing a disturbed green space Callicarpa sempervirens community according to claim 1, wherein: The pioneer species of Callicarpa spp. selected in step S3 is one or more of Callicarpa spp., Callicarpa nudiflora and Callicarpa cantonensis.

6. The method for constructing a Callicarpa oleracea community in a disturbed green space according to claim 1, wherein: The method of applying compound fertilizer in step S3 is strip application, and the specific steps of strip application are: digging a 10 cm wide and 5 cm deep trench between the rows, and evenly spreading compound fertilizer at a standard of 200-400 g per plant.

7. The method for constructing a Callicarpa spp. community in disturbed green space according to claim 1, characterized in that: The method of pruning dry or weak branches in step S4 is to remove branches below 1.5 meters and leave only the main trunk.

8. The method for constructing a Callicarpa sempervirens community in disturbed green space according to claim 1, wherein: The shrubby Callicarpa planted in step S4 is selected from one or more of Callicarpa slender-leaved, Callicarpa sparse-toothed, Callicarpa slender-stalked, Callicarpa oleracea, Callicarpa sinensis, Callicarpa japanensis, Callicarpa koreacens and Callicarpa duhonghua, and the crown width of the shrubby Callicarpa is 50-100 cm.

9. The method for constructing a disturbed green space Callicarpa sempervirens community according to any one of claims 1 to 7, characterized in that: The transitional plants planted in step S4 are selected from one or more of Nephrolepis chinensis, Trachelospermum jasminoides, Euphorbia milii and Pseudobulbus pubescens.

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