JPH07108160B2 - Training management method on golf course green - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of growing and managing a plant such as grass on a golf course green or the like.

The present inventor has already proposed a circulating water sprinkling facility in a golf course green or the like as disclosed in Japanese Patent Publication No. 4-22526. This forms an underground water storage area in the underground ground such as a golf course green with a gravel layer and an impermeable sheet surrounding the underside and surroundings, and the gravel layer is connected to a water storage tank outside the underground water storage area. In addition, the upper water collecting pipe and the lower water collecting pipe are vertically embedded, and in order to spray the water in the water storage tank to the surface of the earth, a water spray pipe is piped from the water storage tank.

[0003]

This prior art is intended to recycle collected water, prevent groundwater contamination by pesticides, disinfectants, fungicides, fertilizers, etc., and prevent surface dryness. Therefore, although the objectives can be sufficiently achieved in these points, it cannot be said to be sufficient in terms of healthy growth of plants such as grass.

The object of the present invention is to improve upon this prior art,
In addition to healthy growth of plants such as lawn, it is possible to further improve the effects of recycling and collecting collected water, preventing groundwater contamination by pesticides, disinfectants, fungicides, fertilizers, and preventing surface dryness. Moreover, it is to provide a growth management method capable of keeping the surface temperature constant.

[0005]

According to the present invention, a gravel deposit layer capable of storing water by accumulating stones, filter media, etc. in the underground ground of a golf course green, etc. and stopping the water below and around it with an impermeable sheet. And a sand layer is provided on the upper side thereof with a water permeable sheet interposed therebetween. Then, by supplying water from the water storage tank to one end of the gravel accumulation layer through an underground return pipe, an aquifer layer that stores water is formed in the gravel accumulation layer, and at the same time, the water accumulation in the gravel accumulation layer An air reservoir that stores air is formed between the layer and the permeable sheet, and the water in the aquifer is collected from the other end of the gravel accumulation layer to a water storage tank through an underground water collection conduit to collect gravel. While passing through the sedimentary layer, the height of the boundary surface between the aquifer and the air reservoir is adjusted by the water level adjusting valve in the middle of the water collection conduit.

By raising or lowering the height of the boundary surface between the aquifer and the air reservoir, the air in the atmosphere can be taken into the air reservoir.

[0007]

According to the present invention, a gravel deposit layer that can store water, such as stones and filter media, is formed below the sand layer, and an aquifer layer that stores water and an air reservoir layer that stores air are divided into two layers. In order to form the soil, the aquifer in the ground can control soil moisture and fertilizer, and at the same time, the air reservoir that is always formed under the sand layer suppresses excessive hydration from the aquifer. In addition to preventing root rot and diseases of plants such as
By adjusting the height of the boundary surface between the aquifer and the air reservoir with the water level adjusting valve, the water content and temperature of the sand layer and the ground surface can be adjusted appropriately. Therefore, healthy growth of plants can be achieved, and use of pesticides, disinfectants, bactericides, etc. can be minimized. Further, the water that has penetrated into the sand layer can be purified and filtered in the air storage layer and the aquifer layer by the gravel deposition layer in which stone materials, filter materials, etc. are deposited, and then collected in the water storage tank for reuse. At this time, the aeration action can be performed by the air stored in the air storage layer while flowing through the gravel accumulation layer from one end to the other end, so that the purification action is good and the water in the aquifer can be prevented from being contaminated. .

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. In FIG. 1, the surface layer of the golf course green 1 is formed of a sand layer 2, and a gravel deposition layer A formed by depositing a stone material, a porous filter material (whether natural or artificial), a ceramic pipe, or the like is formed below the sand layer 2. It is provided via a water permeable sheet 5 such as a net. The lower side and the periphery of the gravel accumulation layer A are stopped by a water impermeable sheet 6 so that water can be stored.

The gravel deposit layer A is divided into an aquifer layer 4 that stores water and an air reservoir layer 3 that stores air, and the thickness of the sand layer 2 is substantially uniform when viewed from the ground surface (lawn). The deposit thickness of stone and filter media is changed according to the ground surface. The height of the boundary surface (shown by a chain line) between the air reservoir 3 and the aquifer 4 is not always constant, but can be adjusted up and down as described later.

A lower part of one end (the right end in the figure) of the gravel accumulation layer A is connected to a water storage tank 7 buried in the ground outside the green 1 through a water collection conduit 8. A water level adjusting valve 9 is provided in the middle of the water collecting conduit 8 so that the water level in the aquifer 4 can be adjusted by the water level adjusting valve 9. That is, when the water level in the aquifer 4 becomes equal to or higher than the water level set by the water level adjusting valve 9, the water in the aquifer 4 automatically flows into the water storage tank 7 through the water collecting conduit 8. The structure of the water level adjusting valve 9 will be described later.

On the other hand, the air reservoir 3 is connected to a blower (air supply source) 10 installed at an appropriate place on the ground through an air supply conduit 11 so that air can be forcibly supplied. . Further, the air supply pipe 11 is branched and connected to the diffused gas 12 in the water storage tank 7, so that the water in the water storage tank 7 can be forcedly aerated. Further, an ozone generator 13 is connected to the air supply pipe 11, and ozone can be sent into the air reservoir 3 and the water storage tank 7 together with air through the air supply pipe 11.

A pump 14 is installed in the water storage tank 7, and the water in the water storage tank 7 is sent by the pump 14 to the water sprinkler 16 through the return pipe line 15 so that the water can be sprayed on the green 1 at any time. . Further, the return flow pipe 15 is branched and connected to the lower part of the other end (left end in the drawing) of the gravel accumulation layer A, and water can be supplied into the aquifer 4 through the return flow pipe 15. In addition, the water in the water storage tank 7 is cooled by the cooling / heating machine 1
It can also be cooled or heated by 7. It should be noted that the cooling / heating machine 17 can be replaced by a normal cooling / heating machine, in which case cold or warm air is stored in the water storage tank 7.
Send to.

2 and 3 show an example of the structure of the water level adjusting valve 9. The water level adjusting valve 9 is provided in a vertically long bottomed container 18 which is buried with its upper opening facing the surface of the earth. The end of the upstream pipe 8a of the water collection pipe 8 and the tip of the downstream pipe 8b are connected to the bottomed container 18 with a vertical step, and the water flowing from the aquifer 4 through the upstream pipe 8a. Flows into the bottomed container 18 through the water level adjusting valve 9, and then flows into the water storage tank 7 through the downstream pipe 8b. The top opening of the bottomed container 18 can be opened and closed by a lid 19.

At the end of the upstream pipe 8a, the outer cylinder 9a of the water level adjusting valve 9 is provided in the bottomed container 18 with the elbow joint 20.
Vertically connected through. And this outer cylinder 9a
An inner cylinder 9b of the water level adjusting valve 9 is rotatably inserted therein. The outer cylinder 9a is provided with a plurality of holes 21 at different heights and circumferential positions. Further, the inner cylinder 9b is provided with one vertically elongated slit 22 as shown in FIG. 4, and a handle 23 is provided at the upper end.

In the water level adjusting valve 9 configured as described above, the slit 22 of the inner cylinder 9b is provided with one arbitrary hole 21 of the outer cylinder 9a.
The water that has passed through the upstream pipe 8a is caused to flow into the bottomed container 18 from the holes 21 corresponding to the slits 22 by communicating with each other. Therefore, the water level in the aquifer 4 is determined by the height of the holes 21 corresponding to the slits 22, and the height can be adjusted stepwise by the plurality of holes 21.

In order to replenish the water in the water storage tank 7 into the aquifer 4, the pump 14 is driven and only the required amount of the return pipe line 15 is driven.
Can be done through. In this case, the aeration action can be performed by the air stored in the air storage layer while circulating the gravel deposition layer A from one end to the other end. In the case of rainy weather, it is also replenished with rainwater, and further with water sprinkling from the sprinkler 16. When replenishing from the water storage tank 7, fertilizer or the like can be mixed.
In addition, the water in the aquifer 4 can be emptied in case of rain or when the water content on the ground surface is excessive. in this case,
The gravel accumulation layer A is only the air storage layer 3.

While cooling or heating the water in the water storage tank 7 by the cooling / heating machine 17, the water is collected between the water storage tank 7 and the aquifer 4 and the return flow path 15 The temperature of the water in the aquifer 4 can be adjusted by circulating the water through it, and a surface temperature environment suitable for growing grass can be obtained depending on the season. The surface temperature can also be adjusted by sending cold or warm air to the air reservoir 3.

The green 1 has an air reservoir 3 for storing air below the sand layer 2 and an aquifer 4 below which the water level can be arbitrarily adjusted. 4 allows water management and fertilizer management, and the air stored in the air reservoir 3 can constantly prevent root rot and disease of the lawn, so that the lawn can be cultivated soundly and on the green 1 The use of disinfectants and disinfectants can be minimized. Air can be taken into the air reservoir 3 from the atmosphere by adjusting the water level of the aquifer 4 with the water level adjusting valve 9 and moving it up and down.

Furthermore, by sending ozone to the air reservoir 3 together with air, the surface of the ground can be sterilized from the underground, and at the same time, the water in the aquifer 4 can be sterilized. The water that flows into the water storage tank 7 is a sand layer 2, an air storage layer 3, and an aquifer 4.
Although it has been filtered and purified for a while, it can be more effectively purified by aeration with air from the diffuser 12 and ozone sterilization, and by blowing ozone while circulating water as described above to oxidize dissolved substances. , It can decompose pesticides and detoxify them. If a contact filter medium is arranged in the water storage tank 7, the water purification action will be further enhanced. If necessary, it can be adsorbed and purified with a porous adsorbent such as activated carbon, charcoal or zeolite before flowing into the water storage tank 7 or when discharged from the water storage tank 7 to a river or the like.

Although the above embodiment is an example applied to a golf course green, the present invention is not limited to this and can be applied to surface management in hydroponic cultivation, greenhouse cultivation, etc., and various plants can be grown and managed. Is.

[0021]

The present invention has the following effects. Since the water retention layer and the air retention layer are formed in two layers in the gravel accumulation layer that can store water, such as stones and filter materials, under the sand layer, underground water retention Layers can manage soil moisture and fertilizer management, and at the same time, an air reservoir that constantly stores air under the sand layer can prevent root rot of plants such as turf while suppressing unnecessary water supply from the aquifer. Since disease can be prevented, healthy growth of plants can be achieved, and the use of disinfectants and fungicides on the ground surface can be minimized.

By adjusting the height of the boundary surface between the aquifer and the air reservoir with the water level adjusting valve, the water content and temperature of the sand layer and the surface can be adjusted appropriately, so that a surface environment suitable for growing plants can be obtained. .

The water that has penetrated into the sand layer can be purified and filtered in the air storage layer and the aquifer layer by the gravel deposition layer in which stone materials, filter materials, etc. are deposited, and then collected and reused in the water storage tank. At this time, the aeration action can be performed by the air stored in the air storage layer while flowing through the gravel accumulation layer from one end to the other end, so that the purification action is good and the water in the aquifer can be prevented from being contaminated. . Freezing of the ground surface in winter can be prevented by raising the water temperature of the aquifer or by sending warm air to the air reservoir.

By increasing or decreasing the height of the interface between the aquifer and the air reservoir, the air in the atmosphere can be taken into the air reservoir.

When applied to a golf course green, the state of the green grass can be kept constant throughout the year, so the same green can be used all year round, and so-called one green on the same course becomes possible. (No extra green is required) and golf course construction costs and maintenance costs can be saved.

[Brief description of drawings]

FIG. 1 is a schematic view showing an embodiment of the present invention applied to a golf course green.

FIG. 2 is a vertical sectional view showing an example of the structure of a water level adjusting valve used in the embodiment.

FIG. 3 is a transverse sectional view of the same.

FIG. 4 is a perspective view of an inner cylinder of the water level adjusting valve.

[Explanation of symbols]

 1 Golf Course Green 2 Sand Layer A Gravel Deposit Layer 3 Air Reservoir 4 Aquifer 5 Permeable Sheet 6 Impermeable Sheet 7 Water Storage Tank 8 Water Collection Pipeline 9 Water Level Control Valve 10 Blower (Air Supply Source) 11 Air Supply Pipeline 12 Diffused Gas 13 Ozone Generator 14 Pump 15 Return Pipe 16 Sprinkler 17 Cooling / Heating Machine

Claims (2)

[Claims] 1. An underground gravel such as a golf course green is provided with a gravel deposit layer capable of storing stones, filter media and the like, and the lower side and the periphery thereof are stopped by a water impermeable sheet to store water. A sand layer is provided via a permeable sheet, and water is stored from a water storage tank to one end of the gravel accumulation layer through an underground return conduit to form an aquifer layer in which water is stored, An air storage layer for storing air is formed between the aquifer layer and the permeable sheet in the gravel accumulation layer, and the water in the aquifer layer is collected underground from the other end of the gravel accumulation layer. It is possible to adjust the height of the boundary surface between the aquifer and the air reservoir by a water level adjusting valve in the middle of the water collecting conduit while collecting water to the water storage tank through the gravel accumulation layer. A characteristic is a method of growing and managing golf course greens and the like. 2. The golf course green or the like according to claim 1, wherein the height of a boundary surface between the aquifer and the air reservoir is raised and lowered to take in air in the atmosphere into the air reservoir. Training management method.