JPH06319367A - Method for growing plant on dry land - Google Patents

Abstract

PURPOSE:To provide an improved method for growing a plant on a dry land, capable of suppressing the evaporation of water from the soil around the plant, collecting water generated by moisture condensation caused by the lowering of temperature at night and preventing the accumulation of salt caused by the evaporation of ground water. CONSTITUTION:A water-impermeable sheet 2 is laid on a groove 1 or a hole opened on the ground of a dry land and soil is placed on the sheet 2. A seedling is planted or a seed of a plant is sowed on the soil and, as necessary, a pipe is laid in the soil. The surface of the soil is covered with a water-collection sheet 6 and surface soil 7 to form a conical recess. The condensed water and rainwater are collected from the ground surface through the water-collection sheet 6 and used as the water necessary for the growth of the plant.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for vegetation in arid areas, and more specifically, it limits evaporation of water from the surroundings of planted plants and causes condensation caused by a decrease in temperature at night. The present invention relates to an improved method for vegetation in arid areas, which can take in moisture and can prevent the accumulation of salt that occurs with the evaporation of groundwater.

[0002]

2. Description of the Related Art Conventionally, as a method of vegetation in a dry area such as a desert, a method of supplying water by drip, irrigation or watering by laying a pipeline is generally adopted, and a film is used as an auxiliary means. The method of preventing salt damage or limiting the evaporation of water by laying underground or covering the ground surface is used.

[0003]

In a dry area with a large amount of solar radiation, such as a desert, even if water is supplied by sprinkling water, the amount of evaporation of water is extremely large, and salinity that rises from underground due to evaporation of water is increased. There is a phenomenon that vegetation is destroyed due to salt damage due to accumulation near the ground surface, which is a problem of vegetation in arid areas.

In order to prevent the above-mentioned salt damage, the problem is solved by supplying water in an amount exceeding the amount of evaporation of water. However, such a method not only causes a new problem of depletion of the water source, but also causes a problem. However, this method cannot be used in arid areas where water sources cannot be secured. Further, in the area where seawater is desalinated and used, it is difficult to use the above method, which requires a large amount of freshwater.

The present invention has been made in view of the above, and an object of the present invention is to clarify a vegetation method in an arid area in which an extremely small amount of water is supplied and which does not cause salt damage.

[0006] Another object of the present invention is to clarify a method of vegetation in an arid area, which makes it possible to recover and utilize the water vaporized from the soil.

Still another object of the present invention is to clarify a vegetation method in a dry land which can efficiently take in water such as dew condensation water generated on the ground surface due to rainfall or nighttime temperature drop as water necessary for vegetation. The purpose is to

[0008]

Means for Solving the Problems A method for vegetation on a dry land according to the present invention which achieves the above object is to lay a water impermeable sheet by digging a groove or a hole on the surface of the dry land, Put soil on top and plant vegetation or sow plants and lay pipes if necessary, then
It is characterized in that the surface of the soil is covered with a water collecting sheet and topsoil in a mortar shape, and in addition to the above, the dew condensation water / rainwater generated on the ground surface is taken in as water necessary for vegetation by the water collecting sheet. .

[0009]

DETAILED DESCRIPTION OF THE INVENTION The method of the present invention will now be described in detail with reference to specific examples.

1 to 5 show the steps of the method for vegetation in the dry land according to the present invention, which will be sequentially described below.

As shown in FIG. 1, in order to carry out the method for vegetation in the dry land according to the present invention, first, a work of digging a groove 1 having an appropriate depth and laying an impermeable sheet 2 is started. To be done. The depth of the groove 1 is determined by the characteristics of the roots of the plant to be planted, and is generally around 1 m, and may be 2 to 3 m.

As the water-impermeable sheet 2, a sheet that is hard to tear and has excellent elasticity that fits in fine irregularities is preferably used, but if it is water-impermeable, a synthetic resin type, a rubber type,
Asphalt-based or mixed / hybridized various sheets can be used in a single layer or a laminated body, and specific examples include various vinyl chloride sheets used in agricultural sheets,
Polyethylene sheet, rubber asphalt sheet, etc. are used.

The thickness of the water-impermeable sheet 2 is determined in consideration of the weather resistance of the material and the period of use, and is not limited, but a sheet having a thickness of about 5 μm to 5 mm is used as a single layer or a laminate. To be done. For example, in the case of vegetation of sugar beet with a short planting period, it is possible to use a material and thickness that loses weather resistance in a few months, and even in the case of such vegetation, when performing continuous cropping, A sheet having good weather resistance and a tough property and thickness that does not break for a long period of time is used.

The inclination angle of the groove 1 is arbitrary, but as will be described later, various forms are adopted in consideration of the reduction of the solar radiation area, the solar radiation angle, the wind direction, and the like.

As shown in FIG. 2, as the next work, the soil 3 is introduced and the vegetation 4 is planted.

As the soil 3 to be used, the soil excavated from the trench 1 to which humus, fertilizer, various soil improving materials (agents) or water retaining materials (agents) have been added is used.

The vegetation 4 may be in the form of seeding, in addition to transplanting and using the vegetation already grown in the nursery.

In parallel with the above work, the pipe 5 is preferably installed. This pipe 5 is used for water supply and fertilization especially when there is little rainfall, there is a fear that it will be drought drastically and may die, or when the amount of harvest is increased.

The pipe 5 is not only vertically erected near the vegetation 4 as shown in the figure, but is also buried in the soil 3 like a pipeline or is laid on the upper surface of the soil 3. It is possible to adopt the form that is set.

As shown in FIGS. 3 and 4, when the transplanting or sowing of the vegetation 4 is completed, the surface is covered with the water collecting sheet 6 and the surface soil 7.

The water collecting sheet 6, as shown in FIG.
The water-impermeable sheet 2 extending from the bottom of the sheet may be folded back and used as it is, or as shown in FIG.
You may make it use a separate sheet. In the former aspect, it is also a preferable aspect to provide the exhaust port 8 in the vicinity of the folded portion of the seat 2.

As shown in FIG. 4, when covering with one sheet of separate water collecting sheet 6, two holes are used by making an appropriate hole in the portion of the vegetation 4. When used, the vegetation 4 is covered with a slight gap so as not to overlap.

The water collecting sheet 6 is, as shown in FIGS.
It is preferable that the portion of the vegetation 4 is provided with a gradient so as to be the bottom portion and is set in a so-called mortar shape. Of course, the bottom is vegetation 4
However, in this case, it is a condition that an opening for allowing water to pass is provided at the bottom.

Further, when the surface is covered with the water collecting sheet 6 and the top soil 7, as shown in FIG. 4, the slope on one side is made steep to form a shade or a windshield. Is preferably adopted.

Further, as shown in FIG. 5, it is also a preferable embodiment that the upper part of the work soil 3 is tightened in a purse-like shape so that heat due to direct sunlight is not transmitted to the upper surface portion of the work soil 3.

A water impermeable sheet 2 as the water collecting sheet 6.
Materials similar to those described above are preferably used.

Next, referring to FIG. 6, the operation of the method for vegetation in the dry land according to the present invention will be described.

According to the vegetation method of the present invention, the soil 3 is separated from the earth and sand by the impermeable sheet 2, and the upper portion is near the vegetation 4 or the exhaust port 8 provided in some cases. No, sheet 2 and water collection sheet 6
Since only the joints with and are released, the water in the soil 3 remains in a state of dew condensation on the lower surface side of the water collecting sheet 6 and is hard to evaporate to the outside.

When it rains, it is collected by the water collecting sheet 6 and stored at the bottom of the soil 3.

Further, in the desert area, even if there is no rainfall, dew condensation occurs on the ground surface due to a sharp decrease in temperature at night.
It is possible to take this into the soil 3 using the water collecting sheet 6.

By using the pipe 5, it is possible to perform water supply and fertilizer application during extreme drying.

The above embodiment is a mode in which the soil 3 is formed in the shape of a long groove, but an example in which the soil 3 is independent, or conversely, the sheet 2 is formed in the shape of a bag is also present. Included in the method of the invention.

The vegetation 4 is not limited to a single plant, and a plurality of plants are planted alternately or discontinuously, and moreover, a plurality of plants are mixedly mixed at one place. It may be a mode.

The flow of air or the like in the ground and excess water can be adjusted by providing an opening near the abdomen of the sheet or bag, so that the design can be changed according to the plant or the like.

[0035]

EFFECTS OF THE INVENTION According to the method for vegetation in dry land according to the present invention, it is possible to prevent evaporation of water from the three layers of soil as much as possible. Moisture due to dew condensation that emerges can be taken into the soil 3, water can be supplied and fertilized during extreme drying through the pipe 5, and the soil 3 is isolated by the impermeable sheet 2. Therefore, there is no risk of salt in the soil accumulating on the ground surface due to water sprinkling. Since the sheet 2 and the water collecting sheet 6 are covered with the surface soil 7, deterioration is prevented and it is possible to use for a long period of time. If the water content in the soil 3 becomes excessive, the openings formed around the vegetation 4, the exhaust port 8 provided at the folded portion of the sheet 2, or the joint between the sheet 2 and the water collecting sheet 6. It is possible to evaporate from the etc. and prevent root rot etc. Some, can be excellent effect is expected and so on, the problem noted head is resolved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a process of carrying out the method of the present invention.

FIG. 2 is a cross-sectional view showing an implementation process of the method of the present invention.

FIG. 3 is a cross-sectional view showing an implementation process of the method of the present invention.

FIG. 4 is a cross-sectional view showing another implementation process.

FIG. 5 is a cross-sectional view showing another implementation process.

FIG. 6 is an explanatory view showing the operation of the present invention.

[Explanation of symbols]

 1-Groove 2-Impermeable sheet 3-Soil 4-Vegetation 5-Pipe 6-Water collection sheet 7-Soil 8-Exhaust port

Claims (2)

[Claims] 1. An impermeable sheet is laid by digging a groove or a hole on the surface of a dry land, and soil is put on the sheet, and at the same time planting of vegetation or seeding of plants and, if necessary, of pipes. A method for vegetation in dry land, which comprises laying and then covering the surface of the soil with a water collecting sheet and topsoil in a scooping shape. 2. The vegetation method in arid land according to claim 1, wherein dew condensation water / rainwater generated on the ground surface is taken in as water necessary for vegetation by a water collecting sheet.