KR101289694B1 - Damaged slope revegetation method using vegetation growth base material and auxiliary material - Google Patents

Abstract

PURPOSE: A revegetation method of damaged slope using base vegetative material and secondary vegetative material is provided to restore the vegetation of the damaged slope in a short period by creating advantageous environment to the vegetation restoration. CONSTITUTION: A stabilizing material (20) is set up on the damaged slope (10). The base vegetative material (30) contained timber pellet is sprayed on the top of the surface in which the stabilizing material is installed. A cotton net (40) is set up on the upper surface of the base vegetative material. The secondary vegetative material (50) contained timber pellet is sprayed on the upper surface of the cotton net. The base vegetative material comprises 5-30 weight% of paper fiber, 10-55 weight% of red clay, 3-35 weight% of perlite, 10-55 weight% of weathering soil, 5-45 weight% of organic fertilizer, 5-50 weight% of timber pellet, and 5-45 weight% of plant material compost. The secondary vegetative material comprises 5-45 weight% of organic sludge, 5-50 weight% of coco peat and timber by-product, 30-50 weight% of clay and forest topsoil, 5-35 weight% of timber pellet, and 1-15 weight % of seed.

Description

Damaged slope revegetation method using vegetation growth base material and auxiliary material}

The present invention relates to a damaged vegetation restoration method (DSR method) using a growth base material and a growth auxiliary material for vegetation restoration, and more particularly, to restore the plant growth base of the damaged land and to facilitate the growth of plants. The present invention relates to a damaged vegetation restoration method using a growth base material and a growth auxiliary material that can restore the vegetation of the damaged land in a relatively short period.

In Korea, most of the country's land is mountainous and the climate is warm and humid, and most of it is covered with forests. These forests can generate natural slopes due to landslides or artificial slopes created by development activities due to the increase of national infrastructure and indirect infrastructure. These slopes have lost natural soil layers due to the loss of biological soils. It takes a long time to recover naturally by resilience alone.

In addition, in the case of neglecting such a slope, the slope may be exposed to weathering and erosion, which may cause a large disaster such as a rockfall or collapse, and it may not only be aesthetically ill by destroying the surrounding landscape, but also have an environmental effect such as an ecosystem break.

Therefore, various methods for restoring slopes generated by such natural or artificial damage are being implemented. Recently, various eco-friendly vegetation restoration methods have been developed with increasing interest in eco-friendly ecological restoration for slope design and greening. It is becoming.

However, in recent years, due to changes in the global environment, the average climate of Korea is fluctuating, and the local climate environment such as drought and heavy rain has changed drastically, and the conventional vegetation restoration method quickly restores the inclined slope to the state before the damage. There is a problem.

In other words, because it is impossible to settle on the damaged ground due to the soil condition of the damaged land, greening is attempted on the newly formed soil layer on the damaged land. In forming the soil layer, the conventional vegetation restoration method has the following limitations. have.

 First, the conventional method is that the seed is not properly settled and the plants do not germinate in the early stage of vegetation restoration due to lack of water during drought due to abnormal weather due to poor water holding capacity of the soil layer. Occurring cases of dead young plants also occur.

Secondly, in the conventional method, the soil layer is formed by mixing a certain amount of light soil, soil improving agent, sewage or water purification sludge, organic sludge, adhesive, and combustion material, and the soil layer is less breathable, and the growth of various plants It is difficult to establish a growth base with possible soil hardness. On the other hand, in order to solve these problems, soil voids and soil hardness are partially adjusted to form a soil layer, but this method has a problem that the growth base layer is solidified, and responds to heavy rain and drought due to abnormal climate. Is also difficult.

On the other hand, the tree stocks of Korea are announced from 30㎥ / h to 130㎥ / h, and the national forest budget for using these forest resources is continuously increasing. In addition, in Korea, 2 million ㎥ of wood is not used among the forest resources that can be used for energy every year. According to this trend, deforestation or thinning of forests is increasing, forest by-products generated in this process are also increasing, and interest in resource circulation using them is also increasing. The use of such forest by-products is typically wood pellets, which are expected to continue to increase in interest due to transport, storage convenience and environmental friendliness.

The present invention has been made to solve the above-mentioned problems, the object of the present invention is to provide a damaged vegetation restoration method using a growth base material and a growth auxiliary material that can restore the vegetation of the damaged land in a short period by creating a favorable environment for vegetation restoration have.

Another object of the present invention is to maintain the damage and vegetation by using the growth base materials and growth aids that can maintain the hardness and maintain the hardness of the soil and the soil pores are adjustable to facilitate the germination and growth of the plant, the hardness is maintained In providing a method.

An object of the present invention described above, the step of installing a stabilizing material on the damaged slope surface, the step of mounting the growth base material containing wood pellets on the upper surface of the stabilization material is installed, and the cotton net on the upper surface of the growth base material It can be achieved by providing a damaged vegetation restoration method comprising the step of installing, and mounting a growth aid containing wood pellets on the upper surface of the cotton net.

According to a preferred feature of the present invention, the growth base material is 5 to 30% by weight paper fiber, 10 to 55% by weight ocher, 3 to 35% by weight pearl, 10 to 55% by weight weathered soil, 5 to 45% by weight organic compost The pellet may contain 5 to 50% by weight, plant generation compost 5 to 45% by weight.

According to another preferred feature of the present invention, the growth aid is 5 to 45% by weight of organic sludge, 5 to 50% by weight of coco peat and wood by-products, 30 to 50% by weight of ocher and forest surface soil, 5 to 35% by weight of wood pellets and Seed may contain 1 to 15% by weight.

According to another preferred feature of the invention, the cotton net may be woven with 70 to 98% by weight cotton yarn and 2 to 30% by weight polyester fiber.

On the other hand, the object of the present invention described above, the step of installing a cotton net on the damaged slope, 5 to 45% by weight of organic sludge on the upper surface of the cotton net, 5 to 50% by weight of coco peat and wood by-products, loess and forest surface soil It can also be achieved by providing an undamaged vegetation restoration method comprising the step of mounting a growth aid containing 30-50% by weight, 5-35% by weight wood pellets and 1-15% by weight seed.

According to the damaged vegetation restoration method according to the present invention, by maintaining a vegetation restoration environment that is excellent in water retention and complementary force, the soil voids and soil hardness is prevented, the loss of damaged paper can be prevented, it is possible to quickly restore the vegetation of the damaged paper.

In addition, according to the undamaged vegetation restoration method according to the present invention, the growth base material and the growth auxiliary material includes wood pellets to improve the water holding capacity, maintenance and breathability to facilitate the germination and growth of plants, while ensuring the soil voids Hardness can be maintained to prevent loss of soil.

1 is a construction sequence according to the damaged vegetation restoration method according to an embodiment of the present invention.
Figure 2 is a construction cross-sectional view according to the damaged vegetation restoration method shown in FIG.
Figure 3 is a photograph of the wood pellets contained in the growth base material and the growth aid included in the damaged vegetation restoration method shown in FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. It should be understood, however, that the embodiments described below are merely illustrative of exemplary embodiments of the present invention so that those skilled in the art can easily carry out the invention, Do not. In describing various embodiments of the present invention, the same reference numerals will be used to refer to elements having the same technical features.

1 to 3, the damaged vegetation restoration method using the growth base material 30 and the growth auxiliary material 50 according to an embodiment of the present invention will be described.

Damaged vegetation restoration method (DSR method) according to an embodiment of the present invention is the step of installing the stabilizing material 20 on the damaged slope 10, and the top of the surface on which the stabilizing material 20 is installed Mounting the growth base material containing the pellets 30, the step of installing the cotton net 40 on the upper surface of the growth base material 30, the wood pellet (1) on the upper surface of the cotton net 40 And mounting the contained growth aid (50).

In the case where the damaged vegetation restoration method is to be applied to the damaged slope 10, first, the slope 10 to be constructed is evenly arranged. Here, the contractor removes substances that hinder attachment such as shaking obstacles of the slope surface 10 to be installed, such as flowing stones, from the slope surface 10, and the conventional plant rooted on the slope surface 10 is stabilized material 20. Only cut and clean the ground so as not to interfere with the installation.

Next, the stabilizer 20 is installed on the damaged slope 10. Here, the stabilizing material 20 may include a wire mesh and a fixing pin (not shown), in which case the wire mesh is arranged at an appropriate interval according to the design criteria to be as close as possible to the slope 10 to be constructed. Then, it is firmly fixed by the fixing pin. By installing the stabilizing material 20 in this manner, the damaged slope 10 is prevented from being eroded and collapsed, and the foundation for stable vegetation greening restoration work is laid.

Next, a growth base material 30 containing wood pellets is mounted on the top of the surface on which the stabilizing material 20 is installed. Here, the growth base material 30 is to be a base from which the plant can root and root, and contains the nutrients for growth of the plant in the growth base material 30, and is configured to be as similar as possible to natural soil. In addition, the wood pellets increase the water holding capacity, bobbin power and porosity of the growth base material 30 to create an environment in which plants can grow well.

The growth base material 30 is 5 to 30% by weight of paper fiber, 10 to 55% by weight ocher, 3 to 35% by weight pearl, 10 to 55% by weight weathered soil, 5 to 45% by weight organic compost, 5 to 50 wood pellets It may contain 5% by weight to 45% by weight plant compost.

Here, the ocher and weathered soil creates an environment similar to natural soil so that the growth base material 30 is suitable for plant growth, and the pearlite itself has a high porosity of 94%, so that the growth base material 30 has a conservative ability and Make sure you have a baby. In addition, paper fiber is excellent in water absorption and moisturizing ability to help maintain moisture when germinating plants, and serves to prevent soil erosion by rainfall by maintaining a certain hardness when drying. In addition, organic compost and plant-generating compost serve to nourish the plant.

In particular, since the wood pellets are light, have excellent water absorption and water retention, and are in the form of granules to secure the porosity of the soil, the growth base material 30 has a germination of plants compared to the growth base material where conventional wood pellets were not used. And an environment favorable for growth. In addition, it is possible to maintain a certain hardness while ensuring the porosity can prevent the growth base material 30 is lost due to rainfall, it can be used as nutrients of the plant later.

Here, the wood pellet contains 95 to 99% by weight of wood by-products and 1 to 5% by weight of cellulose-based adhesives, and may have a cylindrical shape of about 3 mm to about 25 mm in diameter and about 25 mm in length. For reference, a wood pellet 1 that can be applied to an embodiment of the present invention is shown in FIG. 3.

Next, the cotton net 40 is installed on the upper surface of the growth base material (30). The cotton net 40 serves to prevent the growth auxiliary material 50 from flowing down initially. That is, it takes a certain time until the growth auxiliary material 50 to have a certain hardness at the beginning of construction to dry, in order to prevent this because the growth aid material 50 flows down the rainfall immediately after construction due to irregular weather conditions Cotton net 40 is to be installed. To this end, the cotton net 40 may be made of a material having a low volume expansion according to the content of moisture, for example, cotton net 40 woven from 70 to 98% by weight of cotton yarn and 2 to 30% by weight of polyester fiber Can be used. For reference, the cotton net may be fixed by a fixing pin although not shown.

Next, a growth aid 50 containing wood pellets is mounted on the upper surface of the cotton net 40. Growth aid (50) is a base for seed germination and initial growth in a given environment, it may contain the nutrition necessary for germination and initial growth in the growth aid (50), the growth base material (30) is a plant Contrary to being the support base for roots, it can be thin and light because it only needs to provide an environment for seed germination and early growth.

This growth aid (50) is 5 to 45% by weight of organic sludge, 5 to 50% by weight of coco peat and wood by-products, 30 to 50% by weight of ocher and forest surface soil, 5 to 35% by weight of wood pellets (1) and seed 1 ~ 15 weight percent.

Here, in particular, the wood pellets have excellent water absorption and water retention ability to help maintain moisture during germination or growth of plants, and can also be used as plant nutrition afterwards, so that the growth aid (50) has an improved greening environment compared to the conventional growth aid. Make it happen.

In addition, ocher and forest surface soils create an environment similar to natural soil so that the growth aid 50 is suitable for germination and initial growth of seeds, and organic sludge, coco peat and wood by-products serve to nourish plants.

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On the other hand, the contractor can be constructed by containing the seed of the plant in the growth aid (50), in this case, since the thickness of the growth aid (50) is thinner than the artificial soil according to the conventional method, the contained seed is sunlight It is good for germination and early growth because it can receive well and is easy to break out of soil during early growth.

Hereinafter, experimental examples and examples will be described in order to verify the effect of the damaged vegetation restoration method using the growth base material and growth aid containing the wood pellets according to the embodiment of the present invention.

Experimental Example: Wood Pellet Experiment

In the growth base material and the growth auxiliary material applied to the examples of the damaged vegetation restoration method of the present invention, in order to verify the effect of the wood pellets, a mixture of loess, wood chips, weathered soil and wood pellets was prepared, soil hardness, soil Humidity and soil pore volume were tested.

Wood Pellet Mixture Mixing Ratio division ocher Wood chip Wood pellets Sum Comparative Example 1 85% 15% 0% 100% Experimental Example 1 85% 0% 15% 100% Comparative Example 2 70% 30% 0% 100% Experimental Example 2 70% 0% 30% 100% Comparative Example 3 60% 40% 0% 100% Experimental Example 3 60% 0% 40% 100%

The wood chips used in this experiment used wood waste roots crushed chips (length 30 ~ 50㎜) generated at the construction site, and the wood pellets were wood byproducts (95 ~ 99% by weight) and cellulose adhesives (1 ~ 5). Pure wood pellets having a cylindrical shape of about 3 mm to 25 mm in length and around 7 mm in diameter were used.

Soil hardness was arithmetic average by measuring the soil hardness test 5 times after the mixture in the experimental zone.

Soil humidity was measured by a hygrometer for 5 days after the experiment was set to saturation state, and the persistence of the soil humidity was compared.

Soil porosity is the volume ratio of the volume density at the time of sampling and drying at 105 ℃ -110 ℃ for 8 hours after sampling the soil cores from the experimental zone to obtain the volume density. Calculated.

Measurement result division Soil hardness
(Mm) Soil humidity (%) Soil porosity
(%) Remarks 1 time Episode 2 3rd time Comparative Example 1 27mm 100% 49% 21% 53% Experimental Example 1 25 mm 100% 60% 47% 56% Comparative Example 2 25 mm 100% 51% 35% 55% Experimental Example 2 23 mm 100% 63% 52% 58% Comparative Example 3 25 mm 100% 55% 37% 56% Experimental Example 3 21mm 100% 67% 53% 59%

As a result of the experiment, the wood pellets have the property of lowering the soil hardness of the growth base material 30 and increasing the water retention, maintaining the soil humidity high, and improving the soil porosity.

Example  : Falsification Vegetation Restoration Method  Trial construction

In order to verify the effectiveness of this technology, test construction was performed on the slope of Cheonan, Chungcheongnam-do.

After arranging the slopes 10 to be constructed, the stabilizing material 20 was installed.

Next, paper fiber 5-30% by weight, ocher 10-55% by weight, pearlite 3-35% by weight, weathered soil 10-55% by weight, organic compost 5-45% by weight, wood pellets 5-50% by weight, plant generation Growth base material 30 containing 5 to 45% by weight of the compost was mounted on the upper surface of the stabilizing material (20).

Next, a cotton net 40 woven from 70 to 98% by weight of cotton yarn and 2 to 30% by weight of polyester fiber was installed on the upper surface of the growth base material 30.

Next, organic sludge 5 to 45% by weight, coco to pits and wood by-products 10 to 50% by weight, loess and forest surface soils 30 to 50% by weight, wood pellets 5 to 35% by weight and seed 1 to 15% by weight The auxiliary material 50 was mounted.

For reference, the organic sludge of this embodiment contained a herbal medicine, crude oil, beverages, livestock.

Example Measurement Result Item Example Earthwork Rock
Saturn sand(%) 38.64 39.04 mass(%) 9.54 9.97 clay(%) 51.82 50.99 Soil hardness (mm)
[Average / (min ~ max)] 20 /
(17--23) 22 /
(19-25) Soil humidity (%)
[Average / (min ~ max)] 57 /
(52-63) 55 /
(53-61) Soil void (%)
[Average / (min ~ max)] 58 /
(55-61) 57 /
(55-60) Surface crack radish radish Material Loss radish radish

As a result of the test construction, the growth base material 30 formed a stable growth base while maintaining an appropriate soil hardness, and was able to secure an appropriate soil humidity and porosity. In addition, the loss of material did not appear in the artificial rain test (30 mm / hr).

Next, a total of three monitoring was performed at 1 month intervals after the test construction of the Example. Monitoring measured items of material loss, vegetation coverage, and emergent vegetation species.

The slope of the test surface was measured by arithmetical average after a random sphere of 1m × 1m was installed under the condition of inclination 1: 1 and irradiated 10 times with a grid of 15cm × 15cm for each monitoring in the sphere.

Monitoring result Item 1 time Episode 2 3rd time Material loss none none none Vegetation Coverage 30 50 75 Emergent vegetation species 5 species 9 types 11 kinds

As a result of the monitoring, the loss of the growth base material 30 and the growth auxiliary material 50 did not occur, which is attached to the growth base material 30 and thereafter, in the step of installing the growth auxiliary material 50 including seeds. In addition, by installing a cotton net (40) with a low change in volume expansion according to the moisture content, it was investigated that contributed to the stabilization of the initial plant germination by preventing the drop of growth aid (50).

As a result of vegetation coating, it was found that more than 50% after 2 months, and more than 90% after 3 months after construction, and improved greening quality could be expected. In addition, in the emergent vegetation species category, more than nine different varieties are appearing in comparison with the conventional vegetation restoration technology in which the appearance of three to five varieties appears, and thus, various vegetation restoration effects are expected in the damaged vegetation restoration.

As described above, the damaged vegetation restoration method using the growth base material and the growth auxiliary material containing wood pellets was explained and verified through the experimental examples and examples of the present invention, and through such a method, the contractor repaired and repaired the damaged slopes. Damage can be quickly restored by creating a vegetation restoration environment with excellent, well-regulated soil voids and soil hardness.

On the other hand, the damaged vegetation restoration method according to the embodiment of the present invention described above can be appropriately modified according to the soil properties of the damaged slope. For example, sloped soil can be roughly divided into blasting rock, ripping rock, and earth and sand. Rock blasting rock is a hard soil composed mostly of rock, and the ripping rock is relatively less hard and can be used as a fork crane. Soil refers to the soil of soil composed mainly of soil and sand.

Of course, the damaged vegetation restoration method according to the embodiment of the present invention described above can be applied to both blasting cancer, ripping cancer, earth and sand. However, in the case of the ripping arm or the soil which is slightly weaker than the blasting cancer, the step of installing the stabilizing material 20 and the growth base material 30 is omitted, and the cotton net 40 is installed and the growth auxiliary material 50 is removed. The effect of restoring the vegetation can be obtained to the extent of mounting.

That is, after installing the cotton net on the damaged slope surface, by attaching the growth aid containing wood pellets on the upper surface of the cotton net, the water retention capacity, bobbin power and breathability is improved to create a vegetation restoration environment that facilitates germination and growth of plants. Can be. In this case, as described above, the cotton net may be woven from 70 to 98% by weight of cotton yarn and 2 to 30% by weight of polyester fiber, and the growth aid is 5 to 45% by weight of organic sludge, 10 to 50 of cocoite and wood byproducts. It may contain 30% by weight, loess and forest surface soil, 5% to 35% by weight of wood pellets and 1% to 15% by weight of seeds.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

1: wood pellets
10: slope
20: stabilizer
30: Growth Foundation
40: cotton net
50: growth aid

Claims (5)

In the vegetation restoration method of the damaged ground,
Installing a stabilizing material on the damaged slope;
Mounting a growth base material containing wood pellets on top of the surface on which the stabilization material is installed;
Installing a cotton net on an upper surface of the growth base material; And
And mounting a growth aid containing wood pellets on the upper surface of the cotton net, wherein the growth base material is 5 to 30% by weight of paper fiber, 10 to 55% by weight of ocher, 3 to 35% by weight of pearlite, and 10 to weathered soil. A damaged vegetation restoration method comprising 55% by weight, 5% to 45% by weight of organic compost, 5% to 50% by weight of wood pellets, and 5% to 45% by weight of plant-generating materials. The method according to claim 1,
The growth aid comprises 5 to 45% by weight of organic sludge, 5 to 50% by weight of coco peat and wood by-products, 30 to 50% by weight of ocher and forest surface soil, 5 to 35% by weight of wood pellets and 1 to 15% by weight of seeds. Damaged vegetation restoration method, characterized in that. The method according to claim 1 or 2,
The cotton net is damaged vegetation restoration method, characterized in that weaving with 70 to 98% by weight of cotton yarn and 2 to 30% by weight of polyester fiber. In the vegetation restoration method of the damaged ground,
Installing a stabilizing material on the damaged slope;
Mounting a growth base material containing wood pellets on top of the surface on which the stabilization material is installed;
Installing a cotton net on an upper surface of the growth base material; And
Mounting a growth aid containing wood pellets on the upper surface of the cotton net, the growth aid is 5 to 45% by weight of organic sludge, 5 to 50% by weight of coco peat and wood by-products, ocher and forest surface soil 30 ~ An undamaged vegetation restoration method comprising 50% by weight, 5 to 35% by weight of wood pellets and 1 to 15% by weight of seeds. In the vegetation restoration method of the damaged ground,
Installing a cotton net on the damaged slope; And
5 to 45% by weight of organic sludge, 5 to 50% by weight of cocoite and wood by-products, 30 to 50% by weight of ocher and forest surface soil, 5 to 35% by weight of wood pellets and 1 to 15% by weight of seeds Damaged vegetation restoration method comprising the step of mounting the contained growth aid.

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