CN111492875A

CN111492875A - Road slope plant recovery method

Info

Publication number: CN111492875A
Application number: CN202010195801.3A
Authority: CN
Inventors: 徐桂红; 蔡江桥; 蓝翠钰; 戴耀良
Original assignee: Shenzhen Xianhu Botanical Garden Management Office (shenzhen Garden Research Center)
Current assignee: Shenzhen Xianhu Botanical Garden Management Office (shenzhen Garden Research Center)
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-08-07
Anticipated expiration: 2040-03-19
Also published as: CN111492875B

Abstract

The invention discloses a method for restoring plants on a road slope. The method for restoring the plants on the road slope comprises the following steps: building a retaining wall, building a catch basin, planting and processing pioneer tree species, planting slope toe plants, updating slope plants, tending and the like. The road slope plant restoring method of the invention fully utilizes the pioneer tree species characteristic of the sildenafil plant on the basis of controlling the invasion of the sildenafil plant, primarily fixes the slope soil and increases the soil fertility, and later replaces the rural plants to reinforce the road slope soil, thereby solving the problem of slope slip and the problem of plant forest phase restoration.

Description

Road slope plant recovery method

Technical Field

The invention belongs to the technical field of vegetation restoration, and particularly relates to a road slope plant restoration method.

Background

In public green land roads at two sides of municipal parks, vegetable gardens, scenic spots and the like, due to factors such as rainwater erosion and the like, geological disasters such as easily-eroded side slopes, ditches, even landslides, collapses and the like are often generated in local areas. This type of slope is referred to herein as a park road slope. If the slopes are not treated in time, the problems of water and soil loss, ecological damage, potential safety hazards and the like are easily caused.

The traditional slope management modes such as stone masonry retaining walls, steel bars, concrete slope protection and the like have a series of problems of high manufacturing cost, uncoordinated ecological environment landscape, difficulty in vegetation restoration and the like, and are not suitable for public greenbelts such as municipal parks, vegetable gardens and the like. The application of plants to ecological protection of the side slope is a potential method. The ecological vegetation can not only fully play the roles of intercepting rainwater on the vegetation overground layer and anchoring soil by underground roots, but also improve the ecological environment and preserve the biodiversity. Compared with highway slope treatment, the park road slope treatment has the advantages that although the slope safety reinforcement difficulty coefficient is low, requirements for slope landscape, slope vegetation recovery and ecological recovery are higher.

In the existing plant slope ecological protection, the Hemihuan is often used in the practice of slope ecological restoration of hydropower engineering in the southwest area of China, although the Hemihuan can quickly form forest in a short period and stabilize the slope in time, little local plants live in and grow under the forest after the forest is formed, the species diversity of the community is simple, the coverage of vegetation on the surface layer under the forest is low, and the water and soil conservation capability of the community is influenced by another fixed degree. Meanwhile, seedlings in the albizia julibrissin forest have strong self-renewal capacity and a large number of seeds, and can be subjected to long-distance diffusion propagation through the seeds, so that the albizia julibrissin forest shows strong invasiveness, and has a large dispute from the perspective of ecological safety. There are also plants of the rampart (Hopea), but because of its high quality of wood, it is cut seriously by human beings, cause its population quantity to drop rapidly, under the wild state, its population quantity resumes slowly, since 20 century 60 s, the protection and recovery of rampart population have been the important content of the forestry work of our country all the time. Rampart is listed as a national level I protective plant, and is listed in a national species minimal population in 2012.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a road slope plant recovery method to solve the technical problems of simple variety or low coverage of vegetation on the surface of the underground forest and unsatisfactory water and soil conservation capacity caused by slow plant growth of the conventional road slope plant recovery method.

In order to achieve the purpose, the invention provides a road slope plant recovery method. The method for restoring the plants on the road slope comprises the following steps:

carrying out fencing treatment on the slope toe of the road side slope;

constructing a catch basin at a distance from the upper edge of the road side slope, and planting ferns or/and local shrubs on two sides of the catch basin;

after the road side slope is finished, planting the plants of the Leucaena, after the plants of the Leucaena grow for 200-400 days, carrying out cutting treatment on the plants of the Leucaena, and carrying out treatment for inhibiting the growth and survival of the plants of the Leucaena;

planting a first herbaceous plant at the toe of the road side slope;

continuing to plant at least one of shrubs and trees and at least one of ferns and second herbaceous plants on the road slope on which the zygophyllus plants are planted; and performing tending treatment.

Compared with the prior art, the road slope plant restoration method disclosed by the invention can be used for ecologically building the retaining wall and the intercepting ditch, simultaneously fully utilizing the pioneer tree species characteristic of the sildenafil plant, controlling the invasiveness of the sildenafil plant, preliminarily fixing the slope soil and increasing the soil fertility. The method has the advantages that the local trees are planted in the later period, the fern plants are matched, the soil protection is enhanced through the matching of various local plants in the later period, the slope protection effect is improved, the landscape effect of the road side slope is enhanced, and the good garden effect can be built by matching with the surrounding landscape. Therefore, the road slope plant restoration method can effectively solve the problem of slope soil sliding and the problem of plant forest phase restoration, and avoid the shortage of ecological safety dispute of foreign plants.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic view illustrating a process flow of a plant restoration method for a road slope according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of the natural stone retaining wall, the filling soil on one side and the intercepting drain according to the embodiment of the present invention;

FIG. 3 is a photograph showing the effect of planting ferns in the stone cracks of the side of the natural stone retaining wall facing the road according to the embodiment of the present invention;

FIG. 4 is a photograph of a wood retaining wall in accordance with an embodiment of the present invention;

FIG. 5 is a photograph showing the effect of fixing ferns in the natural gaps of the wood retaining wall according to the embodiment of the present invention;

FIG. 6 is a surface layout of shrubs, trees, ferns, and herbs planted on a road slope according to an embodiment of the present invention;

FIG. 7 is a realistic view of the restoration effect of the lake garden of the Xian lake plant after 2 years on the lake side slope of the round lake in accordance with example 1 of the present invention;

fig. 8 is a realistic view of the recovery effect of the lake garden of the Xianhu, after 2 years on the slope of the tower section of the Su-railway dragon, in accordance with example 3 of the present invention.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which embodiments of the invention belong. If a definition set forth in this section is contrary to or otherwise inconsistent with a definition set forth in the patents, patent applications, published patent applications, and other publications that are herein incorporated by reference, the definition set forth in this section prevails over the definition that is incorporated herein by reference. The terms related to the embodiments of the present invention are defined as follows:

the plant of the genus Leucaena is Leucaena leucocephala (L Leucaena leucocephala (L am.). de Wit) or Leucaena neoforma (L Leucaena leucocephala CV. Salvador), Leucaena leucocephala (L Leucaena) is perennial arbor or bush, native to tropical America and mainly distributed between 30 degrees north and south latitude, such as Mexico, Golun's ratio, Australia, American Hawaii, Florida and other Asian regions of the Pacific.

Park road side slope: including public green land roads and slopes of municipal parks, vegetable gardens, scenic spots and the like.

Traffic road side slope: which refers to the side slopes on both sides of the traffic road.

And (4) mowing: refers to the cutting and removal of the plant, specifically the part above the root of the plant of the genus Leucaena.

The embodiment of the invention provides a method for restoring plants on a road slope. The steps of the road slope plant recovery method are shown in figure 1, and the method comprises the following steps:

s01, constructing a retaining wall: carrying out fencing treatment on the slope toe of the road side slope;

s02, constructing a catch basin: constructing a catch basin at a distance from the upper edge of the road side slope, and planting ferns or/and local shrubs on two sides of the catch basin;

s03, planting and processing pioneer tree species: after the road side slope is finished, planting the plants of the Leucaena, after the plants of the Leucaena grow for 200-400 days, carrying out cutting treatment on the plants of the Leucaena, and carrying out treatment for inhibiting the growth and survival of the plants of the Leucaena;

s04, planting of the plants at the toe of the slope: planting a first herbaceous plant at the toe of the road side slope;

s05, updating and tending slope plants: continuing to plant at least one of shrubs and trees and at least one of ferns and second herbaceous plants on the road slope on which the zygophyllus plants are planted; and performing tending treatment.

In step S01, a retaining wall is built by surrounding the road slope toe. In an embodiment, the fencing treatment of the toe of the road slope may be performed according to a method including the following steps:

building a natural stone retaining wall, filling mortar on the side of the retaining wall, which is far away from the road, as shown in fig. 2, reserving stone gaps on the side of the retaining wall, which faces the road, and planting ferns in the stone gaps, as shown in fig. 2 and 3. Thus, retaining the stone joints on the side of the retaining wall facing the road facilitates the planting of ferns and softening of the hard retaining wall. And mortar is filled on the other side of the retaining wall, such as a clay layer/a gravel reverse filter layer/a clay layer can be sequentially filled from the wall footing to the wall head. In one embodiment, the height of the retaining wall is 20-40 cm. The height range is set, so that the mud and sand can be prevented from flowing to the road surface, and the road slope is prevented from being suddenly stiff, and is convenient for side slope landscaping.

In another embodiment, the fencing treatment of the toe of the road slope may be further performed according to a method including the following steps:

the enclosure is made of wood, as shown in fig. 4 and 5, wherein the diameter of the vertical stumps is preferably 10-20cm, the vertical stumps are dug into two rows, the transverse logs are preferably 5-15cm, the transverse logs are arranged between the two rows of vertical stumps, ferns are interspersed in natural gaps, and the height of the enclosure is preferably 20-60 cm. Adopt wood to enclose fender and can realize using materials on the spot, have the utilization of waste, natural ecological advantage.

In one embodiment, the road slope is a park road slope or a highway slope of at least one of a park, a vegetation garden and a scenic spot. Preferably a park road slope.

In the step S02, a catch drain is constructed at a distance from the upper edge of the road side slope to effectively drain away the accumulated water, and if the accumulated water retained by the catch drain is led to the roadbed drain of the road, the phenomena of water and soil loss of the road side slope, slope landslide and collapse caused by the accumulated water in the side slope are avoided. In one embodiment, the intercepting ditch is built 2-4 meters away from the upper edge of the road slope, and the width of the intercepting ditch is 20-40cm, and the depth of the intercepting ditch is 20-40 cm. And the drainage effect of the intercepting drain is improved by optimizing the specification of the intercepting drain. Ferns or local shrubs planted on either side of the berm can reinforce the berm and form part of the restoration of the road slope. In particular embodiments, the fern is preferably one or more of nephrolepis, kadsura longipedunculata, pteris nidus, boston fern, golden dog, etc., and the local shrub plant is preferably one or more of plantago indica, myrtle, winter red, etc.

In the step S03, the plants of the genus commiphora are planted on the road slope, that is, the plants of the genus commiphora are used as pioneer species, and the plants of the genus commiphora grow and form rhizobia in the road slope by using the characteristics of strong stress resistance, developed root system, rapid growth and the like of the plants of the genus commiphora, so that natural nitrogen fixation and nutrient increase are performed on the soil of the road slope to save cost and facilitate the survival and growth recovery of the plants of the slope, and the characteristics of the plants of the genus commiphora are used for primarily fixing soil. And then the cutting treatment and the inhibition treatment are carried out on the Leucaena plants to avoid the formation of pure forest of the Leucaena plants and the loss of vegetation under the forest, thereby avoiding the planting propagation and the rapid expansion of the Leucaena.

In one embodiment, the method for planting the Leucaena plant in step S03 comprises the steps of:

inserting holes in the road slope, filling planting soil mixed with the seeds of the Leucaena into the holes, and then carrying out cultivation management treatment. I.e. the inter-cut process is performed. Wherein the density of the holes is 10-15 per square, the diameter of the holes is 8-20mm, and 1-3 seeds of the Leucaena are planted in each hole. By optimizing the way of the Leucaena plants, the germination rate of the Leucaena plants and the uniform distribution of the Leucaena plants in the road slope are improved, so that uniform nutrient components are provided for the soil of the road slope, and the subsequent plant growth is facilitated. In order to increase the germination rate and growth of plants of the genus Leucaena, in a further embodiment, the method of breeding management treatment comprises the steps of: and sprinkling water once on the next day after the inter-planting treatment, and sprinkling bacteria liquid once after budding in 7-10 days.

The step S03 selects that the cutting treatment is carried out on the plants of the genus Leucaena after the plants of the genus Leucaena grow for 200-400 days, so as to avoid the seeds of the plants of the genus Leucaena from maturing, thereby avoiding the self-propagation and the seed diffusion of the plants of the genus Leucaena by utilizing the matured seeds. In one embodiment, the mowing process for the zygocactus plants in the step S03 is a mowing process at stems of the zygocactus plants 5-15cm away from the ground. In yet another embodiment, the method of inhibiting the growth and survival of the Leucaena plant comprises the steps of: after the plants of the genus Leucaena subjected to the cutting treatment are smeared with homogenate and wrapped with nylon; wherein the homogenate comprises a sulfometuron-methyl powder containing 50-75 wt% of dimethomon, a wettable powder containing 25-80 wt% of diuron and water, and the proportion of the sulfometuron-methyl powder, the wettable powder and the water is 10ml:10-25 g: 40-60 ml. The growth and survival of the plants in the genus of Leucaena are effectively inhibited by carrying out mowing treatment and later-stage inhibition on the plants in the genus of Leucaena.

In addition, the scheme of the transplanting treatment and the mowing treatment for planting the plants of the sildenafil genus in the step S03 is beneficial to fast greening of the side slope and increasing of soil nutrients, and meanwhile, sufficient ecological space is reserved for natural propagation and field planting of peripheral plant seeds through wind vectors and the like.

In the step S04, a first herb is planted at the toe of the slope to take advantage of the characteristics that the root system of the herb is developed and easy to survive, and the root, stem and leaf of the herb are intertwined with each other and intertwined with the retaining wall, so as to increase the firmness of the retaining wall in the step S01, i.e. the stone retaining wall or the wood retaining wall. Moreover, the herbaceous plants can shield loess from being exposed, can effectively cover the slope soil from flying upward, and can also optimize the recovery of the vegetation on the road slope. In one embodiment, the first herb comprises at least one of bermudagrass, tall fescue, esparto grass, and carpesium.

The above steps S01 to S03 do not necessarily require the existing sequence, and any one of the steps S01 to S03 may be selected to be performed first according to the engineering requirements, or may be performed simultaneously.

In step S05, at least one of shrubs and trees, and at least one of ferns and second herbs are continuously planted on the road slope after the cutting process is performed on the parthenocarpic plants, so as to further settle and seed the soil of the road slope, prevent soil loss due to rain erosion, and simultaneously recover the vegetation of the road slope. In one embodiment, at least one of the shrubs and trees and at least one of the ferns and the second herbs are planted between the planting points of the Leuconostoc, as shown in FIG. 6. In another embodiment, trees are planted on the sunny road slope, and herbaceous plants are planted in the softer area of the road slope. Therefore, the uniform settlement and fructification treatment of the road slope soil can be realized, and the uniform vegetation recovery of the road slope can be realized.

In another embodiment, the method of tending includes the steps of:

after at least one of shrub and arbor and at least one of fern and second herbaceous plant are planted, checking once every 3 months to find that the seedlings of the Leucaena plants are pulled out, finding that the cutting section of the Leucaena plants germinates and is removed, and continuously removing for at least 3 times. The survival of shrubs, trees, ferns, herbaceous plants and the like can be effectively ensured through the subsequent tending treatment, and the growth of the sildenafil plants is further inhibited.

In a specific embodiment, the shrubs are selected from shrubs with a crown width of 10-20cm and trees with a ground diameter of 6-8cm, such as shrubs including at least one of myrtle, prunus mume and wintergreen, and trees including at least one of rambutan plants, prunus fujiangensis and prunus cerasus. The fern comprises at least one of nephrolepis, asplenium nidus, Boston fern, herba Saussureae Involueratae, and rhizoma Cibotii. The second herb may be the same as or different from the first herb and includes at least one of bermudagrass, tall fescue, esparto grass, and carpesium. All the selected plants are native plants, the developed root systems are favorable for slope protection, and meanwhile, the matched landscape is good, and the plants have low requirements on soil and are easy to survive.

Therefore, the roadside slope plant restoration method in each embodiment makes full use of the pioneer tree species characteristics of the sildenafil plants on the basis of controlling the aggressiveness of the sildenafil plants, primarily fixes the side slope soil and increases the soil fertility, and later-stage replacement of the rural plants reinforces the road side slope soil, so that the side slope soil sliding problem and the plant forest restoration problem are solved, the ecological safety dispute of foreign plants is effectively avoided, and meanwhile, the roadside slope plant restoration method is matched with the surrounding landscape, so that a good garden effect is created in parks, plant gardens and even two sides of highways.

The present invention will now be described in further detail by taking a concrete road slope plant restoration method as an example.

Example 1

The embodiment provides a method for restoring plants on a lateral slope of a lake around a lake garden. The method for restoring the plants on the side slopes of the fossil ring lakes of the lake garden of the Xianhu lake comprises the following steps:

s11: building a natural stone retaining wall at the slope toe of the side slope of the annular lake road of the Xianhu lake vegetable garden, wherein the stone is natural rubble, and the height of the natural stone retaining wall is controlled to be 20-40cm as shown in figures 2 and 3; filling mortar on the side, away from the road, of the natural stone retaining wall, and sequentially filling a viscosity layer (compaction degree of 93%), a gravel reverse filter layer and a clay layer (compaction degree of 93%) from the footing of the natural stone retaining wall to the height direction of the wall head; keeping a stone gap at one side of the natural stone retaining wall facing the road, and planting nephrolepis fern in the stone gap as shown in figure 3;

s12: constructing the intercepting ditches 2-4 meters away from the upper edge of the road slope, wherein the width of each intercepting ditch is 20-40cm, and the depth of each intercepting ditch is 20-40 cm; and the intercepting ditches flow to the roadbed drainage ditches in a light drainage mode or a dark drainage mode, as shown in figure 2; meanwhile, ferns are planted on two sides of the drainage ditch;

s13: after the side slope is finished, planting the plants of the Leucaena in an inserting way: mixing the albizia julibrissin seeds in planting soil, and filling the planting soil mixed with the albizia julibrissin seeds into side slope insertion holes by using wood rods or iron rods (the diameter is 8-20mm), wherein the hole density is 10-15 seeds/square, and the planting soil mixed with the albizia julibrissin seeds is 1-3 seeds per hole; watering once the next day after sowing, and watering once the bacterium solution (containing rhizobium preparation) after budding in 7-10 days; cutting albizzia julibrissin 5-15cm away from the ground in the second growth year within 15 days after flowering, smearing albizzia julibrissin cut openings with homogenate and wrapping with nylon (senetryn (50% -75% wt flazasulfuron powder): diuron 25% -80% wt wettable powder: water in a ratio of 10ml:10-25 g: 40-60 ml);

s14: planting bermuda grass and carpet grass in the loess exposed region of the slope toe of the road side slope in a mixed manner;

s15: according to the mixed planting mode shown in fig. 6, shrubs and ferns are planted among the albizia julibrissin planting points, trees are planted in the places with sufficient sunlight, and herbaceous plants are planted in the softer areas such as backfill soil; wherein, the crown width of the shrub is 10-20cm, and the ground diameter of the arbor is 6-8 cm; the shrub is the prunus mume; the fern is rhizoma Botrytis Viriduli and herba Botrychii; the arbor is lignum Aquilariae Resinatum; the herbaceous plant is carpet grass.

The effect is as follows: after 2 years, landslide danger does not occur in the area, the vegetation coverage reaches 100 percent, and the vegetation coverage is harmoniously fused with surrounding vegetation as shown in figure 7.

Example 2

The embodiment provides a method for restoring plants on the lateral slopes of Dan bamboo in a lake of Xianhu plants. The method for restoring the plants on the lateral slopes of the Dan bamboo of the Xianhu plant garden comprises the following steps:

s11: building a natural stone retaining wall at the slope toe of the red bamboo road side slope of the lake garden, wherein the stone is natural rubble, and the height of the natural stone retaining wall is controlled to be 20-40cm as shown in figures 2 and 3; filling mortar on the side, away from the road, of the natural stone retaining wall, and sequentially filling a viscosity layer (compaction degree of 93%), a gravel reverse filter layer and a clay layer (compaction degree of 93%) from the footing of the natural stone retaining wall to the height direction of the wall head; reserving a stone gap on one side of the natural stone retaining wall facing the road, and planting nephrolepis in the stone gap;

s14: planting carpet grass in loess bare areas at the slope toe of a road side slope;

s15: according to the mixed planting mode shown in fig. 6, shrubs and ferns are planted among the albizia julibrissin planting points, trees are planted in the places with sufficient sunlight, and herbaceous plants are planted in the softer areas such as backfill soil; wherein, the crown width of the shrub is 10-20cm, and the ground diameter of the arbor is 6-8 cm; the shrub is the prunus mume; the fern is nephrolepis fern; the arbor is aquilaria sinensis and Saraca indica; the herbaceous plant is carpet grass.

The effect is as follows: after 2 years, landslide danger does not occur in the area, the vegetation coverage reaches 100 percent, and the vegetation is harmoniously fused with surrounding vegetation.

Example 3

The embodiment provides a method for restoring plants on the side slope of a Su-railway dragon goby tower section in a lake garden. The method for restoring the plants on the side slope of the Su-railway dragon goby tower section of the Xianhu vegetable garden comprises the following steps:

s11: and (3) building a wood enclosure at the slope toe of the slope of the Soy road dragon goby tower section of the Xianhu vegetable garden, as shown in figures 4 and 5, wherein the diameter of the vertical tree stumps is preferably 10-20cm, the vertical tree stumps are dug into two rows, the transverse logs are preferably 5-15cm, the transverse logs are arranged between the two rows of vertical tree stumps, ferns are interspersed in natural gaps, and the height of the enclosure is preferably 20-60 cm.

S12: constructing the intercepting ditches 2-4 meters away from the upper edge of the road slope, wherein the width of each intercepting ditch is 20-40cm, and the depth of each intercepting ditch is 20-40 cm; and the intercepting ditches flow to the roadbed drainage ditches in a light drainage mode or a dark drainage mode, as shown in figure 2; meanwhile, planting nephrolepis on two sides of the drainage ditch;

s14: mixedly planting bermuda grass, esparto grass and carpet grass in loess bare areas at the toe of a road side slope;

s15: according to the mixed planting mode shown in fig. 6, shrubs and ferns are planted among the albizia julibrissin planting points, trees are planted in the places with sufficient sunlight, and herbaceous plants are planted in the softer areas such as backfill soil; wherein, the crown width of the shrub is 10-20cm, and the ground diameter of the arbor is 6-8 cm; the shrub is selected from Prunus mume and Malus baccata; the fern is herba Botrychii, rhizoma Botrychii, herba Pileae Scriptae, and rhizoma Cibotii; the arbor is lignum Aquilariae Resinatum, Fujian mountain cherry blossom, and rampart; the herbaceous plant is carpet grass.

The effect is as follows: after 2 years, landslide danger does not occur in the area, the vegetation coverage reaches 100 percent, and the vegetation coverage is harmoniously fused with surrounding vegetation as shown in figure 8.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. A road side slope plant recovery method is characterized by comprising the following steps:

carrying out fencing treatment on the slope toe of the road side slope;

planting a first herbaceous plant at the toe of the road side slope;

continuing to plant at least one of shrubs and trees and at least one of ferns and second herbaceous plants on the road slope after the cutting treatment is carried out on the zygophyllum plants; and performing tending treatment.

2. The method for restoring plants on a roadside slope as set forth in claim 1, wherein the method for planting the plants of the genus Leucaena comprises the steps of:

inserting holes in the road slope, filling planting soil mixed with the Leucaena seeds into the holes, and then carrying out cultivation management treatment, wherein the density of the holes is 10-15/square, the diameter of the holes is 8-20mm, and 1-3 Leucaena seeds are planted in each hole.

3. The method for restoring roadside slope plants according to claim 2, wherein the method for cultivation management treatment comprises the steps of:

and sprinkling water once on the next day after the inter-planting treatment, and sprinkling bacteria liquid once after budding in 7-10 days.

4. The method for recovering plants on the roadside slope according to claim 1, wherein the mowing treatment is carried out at the stem part of the plants of the genus Leucaena 5-15cm away from the ground;

the method for inhibiting the growth and survival of the Leucaena plants comprises the following steps:

after the plants of the genus Leucaena subjected to the cutting treatment are smeared with homogenate and wrapped with nylon; wherein the homogenate comprises a sulfometuron-methyl powder containing 50-75 wt% of dimethomon, a wettable powder containing 25-80 wt% of diuron and water, and the proportion of the sulfometuron-methyl powder, the wettable powder and the water is 10ml:10-25 g: 40-60 ml.

5. The method for restoring roadside slope plants according to any one of claims 1 to 4, wherein: at least one of shrubs and trees and at least one of ferns and second herbaceous plants are planted between the planting points of the sildenafil plants; and/or

The tending treatment comprises the following steps:

after at least one of shrub and arbor and at least one of fern and second herbaceous plant are planted, checking once every 3 months to find that the seedlings of the Leucaena plants are pulled out, finding that the cutting section of the Leucaena plants germinates and is removed, and continuously removing for at least 3 times.

6. The method for restoring roadside slope plants according to any one of claims 1 to 4, wherein: and planting arbor on the road side slope with sufficient sunlight, and planting herbaceous plants in the softer area of the road side slope.

7. The method for restoring roadside slope plants according to any one of claims 1 to 4, wherein: and constructing the intercepting ditches 2-4 meters away from the upper edge of the road slope, wherein the width of each intercepting ditch is 20-40cm, and the depth of each intercepting ditch is 20-40 cm.

8. The method for restoring plants on a roadside slope as claimed in any one of claims 1 to 4, wherein the method for performing the fencing treatment on the toe of the road slope comprises the following steps:

building a natural stone retaining wall, filling mortar on the side of the retaining wall, which is far away from the road, reserving stone gaps on the side of the retaining wall, which faces the road, and planting ferns in the stone gaps; wherein, the height of the retaining wall is 20-40 cm.

Or

The wood is used for enclosing, wherein the diameter of each vertical stump is 10-20cm, two rows of vertical stumps are formed by beating, the width of each horizontal log is 5-15cm, the horizontal logs are arranged between the two rows of vertical stumps, ferns are distributed in natural gaps, and the height of the enclosing blocks is 20-60 cm.

9. The method for restoring roadside slope plants according to any one of claims 1 to 4, wherein: the first herbaceous plant and the second herbaceous plant are the same or different and comprise at least one of bermudagrass, tall fescue, esparto grass and carpet grass; and/or

The shrub comprises at least one of myrtle, prunus mume and wintergreen; and/or

The fern comprises at least one of nephrolepis, asplenium nidus, Boston fern, herba Saussureae Involueratae, and rhizoma Cibotii; and/or

The arbor comprises at least one of ramus plants, Fujian mountain cherry blossom and Wuyou flower in China; and/or

The crown width of the shrub is 10-20cm, and the ground diameter of the arbor is 6-8 cm.

10. The method for restoring roadside slope plants according to any one of claims 1 to 4, wherein: the road side slope is a park road side slope or a highway side slope of at least one of a park, a plant garden and a scenic spot.