JPH0310764B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for watering and draining surface vegetation such as lawns on golf courses and the like.

For lawns, especially lawns such as golf course greens, there are restrictions on watering time due to constraints such as weather conditions, working hours, and playing hours. In other words, when the grass is dry at high temperatures such as in the summer, the water content is insufficient and the lawn tends to dry out, so if water is watered without limit, it will cause sunburn.

Also, if the humidity is too high, pests and diseases will occur.

Irrigation in the winter also tends to cause frozen soil, which can freeze and damage the lawn, causing frost and withering.

Furthermore, when watering lawn areas such as turf with sprinklers, the water that is sprinkled flows over the surface and does not penetrate into the ground.

The present invention has been made in view of the above-mentioned drawbacks, and its purpose is to supply the required amount of water within the top soil and drain water from the top soil, etc., especially on sloped land, without being restricted by the watering time. To provide a water supply and drainage method for surface vegetation such as lawns, which enables water to be secured, artificially manages water, and allows suitable growth of plants, such as lawns, grown on the ground surface.

Hereinafter, a case in which a golf course is constructed will be described as an example according to FIGS. 1 to 3.

In the first step, the sloping ground surface H is excavated to a predetermined depth D to form a base B whose longitudinal section is substantially parallel to the ground surface H.

Depth D is 50cm from the ground surface H, i.e. the green surface.
It is desirable to excavate forward and backward. Excavation will be carried out using bulldozers, lift trucks, etc., and the excavated soil will be transported to the designated area using both vehicles. The B side of the foundation will be leveled using bulldozers, etc.

In the second step, the partition plates 1 are erected in steps along a plurality of contour lines on the surface B of the substrate formed in the previous step.

The partition plate 1 is a board with a width of about 40 cm or less and a length of about 50 m, cut into a length suitable for the site, and erected vertically in the width direction.

In the third step, a water-impermeable sheet 2 is laid over the entire surface of the base B on which the partition plates 1 were erected in a stepped manner in the previous step. The material used for the sheet 2 is polyethylene, vinyl, or the like.

In the fourth step, the sheet 2 is placed on the high side of the sheet 2 at the part intersecting with the base B surface across the partition plates 1 laid down in the previous step, that is, on the slope partitioned by the partition plates 1. A water collection pipe 3 having pores, small holes, slits, etc. is arranged at a low position of the part, and one end 3a thereof faces a pit 4 for water collection and water level adjustment. This pit 4 is constructed of concrete. 5 is this pit 4
A vertical pipe 5 is arranged vertically within the pipe 5 and is connected to the water collection pipe 3. Further, in order to adjust the underground water level, this vertical pipe 5 is provided with a plurality of holes (not shown) above and below that can be opened and closed freely.

In the fifth step, the water supply pipe 6 is laid on the sheet 2 surface at the part intersecting with the base B surface on the lower side with the partition plate 1 in between, that is, at the high position of the slope section divided by the partition plates 1, 1. . A water supply pit 7 is connected to one end of the water supply pipe 6.

In the sixth step, sand 8 of a predetermined grain size is poured onto the base B surface on which the sheet 2 was laid in the previous step and the water collection pipe 3 was arranged.

In the seventh step, topsoil 9 for vegetation is layered on the top surface of the sand 8 that was added in the previous step so as to be substantially aligned with the original ground surface H.

One embodiment of the present invention has the above-described configuration, and excess moisture in the topsoil for vegetation 9 is collected in the water collection pipe 3 and drained from the pit 4 for water collection and water level adjustment. Further, the amount of drainage is controlled by the pit 4. Therefore, root rot of the grass grown on the topsoil 9 for vegetation and damage from pests and diseases do not occur.

Moreover, water is not supplied from the surface of the topsoil 9 for vegetation, but is supplied through the water supply pipe 6, and water permeates into the topsoil 9 for vegetation by capillary action. Moreover, the water supply amount can be controlled by the water supply pit 7.

Therefore, even during hot and dry times such as summer, the moisture content of the sand 8 and the top soil for vegetation 9 on top of it becomes insufficient.
An appropriate amount of water can be supplied without being restricted by weather conditions, working hours, or playing hours. Therefore, it is possible to prevent the lawn from being sunburned and damaged by pests and diseases in the summer, and to prevent frost damage in the winter.

As mentioned above, according to the present invention, it is possible to supply water within the soil and drain water from the soil as necessary, especially on sloped land, without being restricted by weather conditions such as summer or winter, or watering time during work or play. Water management can be done artificially by making it possible to secure a sufficient amount of water. Therefore, throughout the year there is no difference in moisture content in the soil such as topsoil for vegetation, and the appropriate amount of water and fertilizer can be supplied, making it suitable for growing plants such as lawns on the ground surface.

[Brief explanation of the drawing]

Figure 1 is a plan view of an embodiment of a ground created by the water supply and drainage method for surface vegetation such as lawns of the present invention, Figure 2 is a longitudinal cross-sectional view, and Figure 3 is a view along the water collection pipe. FIG. 1... Partition plate, 2... Sheet, 3... Water collection pipe,
4... Pit, 5... Vertical pipe, 6... Water supply pipe, 7
...Water supply pit, 8...Sand, 9...Top soil for vegetation.

Claims (1)

[Claims] 1. An impermeable sheet is laid on a foundation excavated approximately parallel to the sloping ground surface, partition plates are erected along a plurality of contour lines, and the partition plates are sandwiched between the sheets. A water supply means is arranged on the lower side of the sloped base, and a water collection means is arranged on the higher side of the sloped base with a partition plate in between, and one end of these water supply means and the water collection means is connected to the water supply source and the water collection pit, respectively. A water supply and drainage method for surface plants such as lawns, characterized in that they can be connected. 2. The water supply means is constituted by a perforated pipe having a large number of small holes or slits, and is buried in the soil on a predetermined side of the sloped base with the partition plate in between, and one end is connected to a water supply pit. A water supply and drainage method for surface vegetation such as lawns according to claim 1, characterized in that: