JP2002180470A - Vegetation mat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vegetation mat formed solely of materials which will be integrated with the ground through secular changes without causing environmental disruption, while allowing plants to grow readily, and capable of dealing with vegetation sites where a vegetation base is insufficient. SOLUTION: A wooden nonwoven fabric 2 is laminated over a sheet of jute cloth 1 and a vegetation part layer 3 having fertilizer 33 and seeds 32 mixed into a base material 31 is laminated over the nonwoven fabric. The vegetation part layer is covered with a water-soluble film 4 and a palm fiber layer 5 having a predetermined thickness and provided with either or both of small holes 51 and cuts 52 appropriately spaced from one another is placed over the vegetation part layer. A grating 6 formed on the palm fiber layer is used for covering, and these laminates are entirely sewn together by a natural fiber thread 7.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vegetation mat used for greening slopes and slopes.

[0002]

2. Description of the Related Art Various methods have been known for greening slopes and slopes. However, the present invention is directed to a mat-shaped vegetation substrate having seeds and fertilizers loaded thereon. And a vegetation mat used in the vegetation mat construction method.

[0003] Vegetation mats may cause environmental destruction or hinder the animals' survival by hindering the survival of the animals. Therefore, vegetation mats having less permanent residues have been proposed. Specifically, Japanese Patent No. 2525496 discloses a vegetation mat in which a seed and a fertilizer are interposed between a floc of a starch-based compound, and the surface is covered with a net formed of a material that can be decomposed by microorganisms in the soil. Is disclosed. Also, Japanese Patent No. 2594227 discloses that seeds are scattered on a vegetation base material such as bark compost or peat moss,
There is disclosed a vegetation mat in which the upper and lower surfaces are covered with a water-soluble sheet, and the surface is further covered with a water-disintegrable film (a film that gradually decomposes with water) and covered with a net.

However, in the above-mentioned conventional vegetation mat,
A vegetation mat using a material that decomposes naturally has been proposed, but adopting a special member called a flocculent body using a starch-based compound as a vegetation base leads to an increase in vegetation construction costs and When the surface of the base material is coated with a water-disintegrable film, the water-disintegrable film absorbs the rainwater and evaporates it as it is in a light rain area or when the planting board is dry. Can not. Further, the vegetation mat formed of the above-mentioned naturally decomposed material, for example, produces a flocculent body of a vegetation base material, or attaches a water-soluble film that is easily damaged on the front and back of the vegetation base material, all of which are special. It requires complicated processing, and its manufacture and handling are complicated.

Therefore, the inventor of the present invention recently disclosed Japanese Patent Application Laid-Open No. 2000-2000.
As disclosed in Japanese Patent No. 38725, a water retention agent is used as a vegetation mat which can be manufactured and handled easily without causing any environmental pollution without using special materials, and which can realize effective vegetation. It is formed of the woody non-woven fabric held,
And seeds and fertilizer granules are scattered and adhered on the base part having a sticky surface, and a coconut fiber layer of an appropriate thickness is covered,
A vegetation mat was proposed in which the palm fiber layer was covered with a water-soluble film, and the upper surface of the water-soluble film was further covered with a lattice network formed of natural fibers.

[0006]

In the above-mentioned vegetation mat, when the ground to be vegetated is sandy soil or reticulated soil having a high soil hardness, the vegetation base is insufficient, so that the mat is laid. Even if germinated later, sufficient breeding cannot be expected, and the mat will peel off without being integrated with the ground due to aging. Also, thinning the palm fiber layer does not help alleviate the impact of rain. Conversely, if the impact of rainwater is sufficiently reduced, the germinated plants hinder the growth through the palm fiber layer.

Therefore, the present invention proposes an improved vegetation mat which can cope with a vegetation target site having no sufficient vegetation base without fear of environmental pollution.

[0008]

A vegetation mat according to the present invention is characterized in that a woody nonwoven fabric is laminated on a jute cloth, and a vegetation part layer in which fertilizer and seeds are mixed in a base material is laminated on the woody nonwoven fabric. The part layer is covered with a water-soluble film, further covered with a coconut fiber layer having a predetermined thickness and one or both of holes and cuts at appropriate intervals, and covered with a lattice network formed on the coconut fiber layer, and laminated. The whole body is sewn with natural fiber thread.

Therefore, when the vegetation mat is laid on a vegetation target place such as bare ground and fixed with an appropriate pile, the vegetation layer of the base material containing seeds and fertilizer is made of a woody nonwoven fabric and a water-soluble film, and the upper and lower surfaces are made of water. Closed, it is installed properly in close contact with the ground of the vegetation without spilling, and after installation, the water-soluble film is dissolved by rainwater and seeds germinate,
The surface of the mat can be exposed through the holes or cuts in the palm fiber layer, and even if the vegetation base of the ground is insufficient,
Since the mat itself has the base material, the germinated seeds can be sufficiently propagated. And all the materials naturally become the ground of the laying surface due to aging.

[0010]

Next, an embodiment of the present invention will be described. In the vegetation mat shown in the embodiment, a jute cloth 1, a woody nonwoven fabric 2, a vegetation part layer 3, a water-soluble film 4, a coconut fiber layer 5, and a lattice network 6 are laminated from below, and the whole is sewn with natural fiber thread 7. The overall size is about 1 × 5 m.

The jute cloth 1 is used for ordinary Nanjing bags and the like, and serves to reinforce the lower part of the mat. The woody nonwoven fabric 2 uses Japanese paper or a pulp sheet, and is intended to cover the vegetation layer 3.

The vegetation layer 3 is a mixture of a base material 31 such as bark compost, peat moss and humus, and a plant seed 32 and a fertilizer 33, which are used in an amount of about 15 liters / square meter.

The water-soluble film 4 is made of a material which is readily soluble in water, such as a starch film such as an oblate or a polyvinyl alcohol film, and is used for covering the vegetation layer 3 in front of a mat facility. Is what you do.

The palm fiber layer 5 has a thickness of about 2 to 3 mm,
A large number of small holes 51 and cuts 52 are provided.
1 has a diameter of about 6 mm and is formed at intervals of 40 mm square, and the cut 52 has a width of about 70 mm and a width of about 50 mm before and after, and the palm fiber layer itself is formed to a certain degree of roughness. It is only a numerical value of a processing machine, and in reality, an accurate through hole is not formed. The coconut fiber layer 5 is for preventing the lower vegetation section layer 3 from being scattered or spilled when it is directly hit by rain.

The lattice network 6 is a so-called hemp net, which prevents fibers from being released from the palm fiber layer 5. The suturing by the natural fiber thread 7 has a role of holding the whole in a thin sheet shape and also preventing a deviation of the vegetation part layer 3 inside.

In the vegetation work using the vegetation mat, the mat is closely adhered to the surface of the ground on which vegetation is to be provided, and the mat is fixed to the ground surface using an appropriate pile. It is what you do. After fixing the vegetation mat, the vegetation layer 3
Seeds 32 germinate and grow with the base material 31 as a breeding floor, and at the mat through the small holes 51 and cuts 52 of the coconut fiber layer 5 to germinate.

In particular, since the vegetation mat of the present invention includes the vegetation layer 3 having the base material 31, the vegetation mat can cope with a mountain without a vegetation base, and the vegetation layer 3 including the base material can be used.
Is covered with the woody nonwoven fabric 2 and the water-soluble film 4, so that the base material 31, the seeds 32, the fertilizer 33 and the like of the vegetation section layer 3 do not spill during transportation or the like before use.

Furthermore, the palm fiber layer 5 is used to reduce the impact of rain when seeds are germinated immediately after laying and before the seeds germinate and after germination, and the roots are not firmly stretched. It does not hinder germination and reproduction. Of course, due to aging, all materials of the mat are returned to the soil, and there is no problem of environmental pollution.

[0019]

As described above, the present invention relates to a burlap cloth, a wood nonwoven fabric, a vegetation layer in which fertilizer and seeds are mixed in a base material, a water-soluble film, a cocoon provided with one or both of pores and cuts. A vegetation mat obtained by laminating a fiber layer and a lattice net, and suturing the entire laminate with natural fiber yarns. In a conventional vegetation mat having no risk of environmental pollution, particularly for a vegetation target area where the vegetation base is insufficient. The coconut fiber layer for protecting the base is improved so that it does not hinder the germination and growth of plants.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of an embodiment of the present invention.

FIG. 2 is a sectional view of the same.

FIG. 3 is an overall view of the same.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Burlap cloth 2 Wood nonwoven fabric 3 Vegetation part layer 31 Base material 32 Seed 33 Fertilizer 4 Water-soluble film 5 Palm fiber layer 6 Lattice net 7 Natural fiber thread (suture)

Claims (1)

[Claims] 1. Laminating a woody nonwoven fabric on a jute cloth, laminating a vegetation layer in which a fertilizer and a seed are mixed in a base material on the woody nonwoven fabric, and covering the vegetation layer with a water-soluble film; Furthermore, a coconut fiber layer provided with one or both of small holes and cuts at a predetermined thickness and at appropriate intervals is covered, covered with a lattice network formed on the coconut fiber layer, and the entire laminate is sewn with natural fiber threads. A vegetation mat characterized by becoming.