CN114908851A

CN114908851A - Method and system for laying ecological lawn in sponge airport flight area

Info

Publication number: CN114908851A
Application number: CN202210699829.XA
Authority: CN
Inventors: 王阁岚
Original assignee: Tianjin University of Technology
Current assignee: Tianjin University of Technology
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-08-16
Anticipated expiration: 2042-06-20
Also published as: CN114908851B

Abstract

The invention belongs to the technical field of sponge airport greening, and discloses a method and a system for laying an ecological lawn in a flying area of a sponge airport. Sponge airport flight area ecological lawn system of laying includes: the water collecting system is used for filtering and collecting rainwater and preventing water on the road surface; the surface rainwater runoff collecting system is used for intercepting rainwater, increasing surface runoff resistance and collecting surface rainwater runoff into a soil water storage system; a soil water storage system for storing rainwater; and the water storage system is used for storing the rainwater filtered and collected by the water collection system, the stored rainwater flows into the soil water storage system, and the redundant rainwater overflows into the external artificial lake after the soil water storage system is full. The invention provides an ecological lawn laying method capable of rapidly storing, permeating, conveying and recycling rainwater, which improves the storage and drainage efficiency of the ecological lawn in an airport flight area, reduces flight delay, recycles rainwater resources and saves water resources.

Description

Method and system for laying ecological lawn in sponge airport flying area

Technical Field

The invention belongs to the technical field of sponge airport greening, and particularly relates to a method and a system for laying an ecological lawn in a flying area of a sponge airport.

Background

The sponge city construction concept is applied to the airport in the design process, functions of controlling the airport flood, recycling rainwater resources and the like are achieved through the design of an airport regional water environment system, and the sponge airport ecological lawn rainwater system is constructed. The ecological lawn in the airport flight area has wide coverage and large area, and can effectively absorb the runoff rainwater on the ground in the flight area.

When encountering extreme rainstorm, the runoff formation time of the airport pavement is short, the runoff peak value is high, the lawn soil texture is sticky, the inter-particle pores are small, and the water permeability and the water storage property are poor. Rainwater in the flight area is difficult to be quickly absorbed by the ecological lawn in a short time, and a water film or even accumulated water is formed on the road surface, so that the operation safety of an airport is seriously influenced.

Through the above analysis, the problems and defects of the prior art are as follows:

(1) in the prior art, under the condition of an extreme environment in an airport area, the running safety of the airport is influenced by water accumulation in a flight area.

(2) In the prior art, the green plants in the airport area have poor water storage capacity; the rainwater resource utilization rate is low.

Disclosure of Invention

In order to overcome the problems in the related art, the disclosed embodiment of the invention provides a method and a system for laying ecological lawns in a flight area of a sponge airport.

The technical scheme is as follows: a sponge airport flight zone ecological lawn system of laying includes:

the water collecting system is used for filtering and collecting rainwater and preventing water on the road surface;

the surface rainwater runoff collecting system is used for intercepting rainwater, increasing surface runoff resistance and collecting surface rainwater runoff into a soil water storage system;

a soil water storage system for storing rainwater;

and the water storage system is used for storing the rainwater filtered and collected by the water collection system, the stored rainwater flows into the soil water storage system, and the redundant rainwater overflows into the external artificial lake after the soil water storage system is full.

In one embodiment, the water collecting system comprises a water collecting tank, wherein filtering ceramic particles are filled in the water collecting tank, and a filtering hole is formed in the bottom of the water collecting tank and communicated with the water storage system through the filtering hole.

In one embodiment, the surface rainwater runoff collection system comprises a green planting layer, an adsorption layer and a seepage layer,

the seepage layer is positioned above the soil water storage system, and the adsorption layer is laid above the seepage layer; the green plant layer is planted on the seepage layer; the adsorption layer is lower than the airport runway at the periphery of the adsorption layer.

In one embodiment, the green plant layer consists of 80% by volume of chinese pennisetum and 20% by volume of humifuse euphorbia.

In one embodiment, the adsorption layer is composed of 30% of garden soil, 40% of turfy soil and 30% of pine needle soil in percentage by volume.

In one embodiment, the percolation layer is composed of 20% of saprolite, 10% of zeolite and 70% of garden soil by volume percentage.

In one embodiment, the soil impoundment system is provided with an aquifer and a soil layer from top to bottom;

the aquifer consists of 60 percent of turfy soil and 40 percent of garden soil according to volume percentage;

the water storage layer is arranged in a V shape, and the planting longitudinal slope is 0.3%;

the water storage system comprises a water storage pipeline and an overflow pipeline;

the water storage pipeline is communicated with the water collecting system; the upper area of the tail end face of the water storage pipeline is provided with an overflow hole communicated with an overflow pipeline, and the overflow pipeline is connected with an external artificial lake;

the bottom end of the water storage pipeline is longitudinally provided with a plurality of rows of seepage holes, and the seepage holes are communicated with a soil water storage system.

The invention also aims to provide a method for laying ecological lawns in a sponge airport flight area, which comprises the following steps:

the rainwater is filtered and collected by using the water collecting system, so that water on the road surface is prevented;

intercepting rainwater by using a surface rainwater runoff collecting system, increasing surface runoff resistance, and collecting surface rainwater runoff into a soil water storage system;

accumulating rainwater by using a soil water storage system;

and storing the rainwater filtered and collected by the water collecting system by using the water storage system, wherein the stored rainwater flows into the soil water storage system, and redundant rainwater overflows into an external artificial lake after the soil water storage system is full.

In one embodiment, the method for laying the ecological lawn in the sponge airport flight area specifically comprises the following steps:

s1, selecting filtering ceramsite with proper size, loading the filtering ceramsite into a water collecting tank, and forming filtering holes at the lower part of the water collecting tank;

s2, preparing green plant layer seeds: mixing 80% of the Chinese pennisetum herb and 20% of the humifuse euphorbia herb, and uniformly stirring to obtain green plant layer grass seeds; preparing adsorption layer soil: mixing 30% of garden soil, 40% of turfy soil and 30% of pine needle soil, and uniformly stirring to obtain adsorption layer soil; preparing seepage layer soil: mixing 20% of leaf mold, 10% of zeolite and 70% of garden soil, and uniformly stirring to obtain seepage layer soil; preparing aquifer soil: adding turfy soil into 40% of garden soil to prepare aquifer soil;

s3, compacting the foundation soil into a V-shaped structure with a soil longitudinal slope of 0.3%, paving the prepared aquifer soil above the foundation soil, and setting the V-shaped longitudinal slope to be 0.3%; communicating the prepared water collecting tank with a water storage pipeline paved in a water storage layer through an opened filtering hole, and communicating an overflow hole formed in the water storage pipeline with an overflow pipeline; the overflow pipeline penetrates through the water storage layer and the foundation soil and is connected with an external artificial lake; a plurality of rows of seepage holes which are arranged along the longitudinal direction of the water storage pipeline are communicated with the water storage layer;

s4, scattering the green grass seeds of the planting layer prepared in the step S2 above the water storage layer, covering the water storage layer with seepage layer soil, and finally paving an adsorption layer above the seepage layer to enable the adsorption layer to be lower than the airport runway.

The invention also aims to provide the ecological lawn for the sponge airport flight area paved according to the paving method for the ecological lawn for the sponge airport flight area.

By combining all the technical schemes, the invention has the advantages and positive effects that:

first, aiming at the technical problems existing in the prior art and the difficulty in solving the problems, the technical problems to be solved by the technical scheme of the present invention are closely combined with results, data and the like in the research and development process, and some creative technical effects are brought after the problems are solved. The specific description is as follows:

(1) the green plant layer adopts the green pennisetum alopecuroides, has no bird food source, is low and dense in grass layer and has higher vegetation retention, and the net structure woven by overground stems can improve the surface runoff resistance and the green plant water storage capacity; 20 percent of bird-repelling plant humifuse euphorbia is prepared, thereby indirectly avoiding bird aggregation and reducing the safety problem of bird strike.

(2) The surface of the adsorption layer is adhered with garden soil, turfy soil and pine needle soil to form a large granular matrix, so that the surface area of the lawn is increased, a large amount of adsorbed water is formed on the surface of the soil, and a large amount of rainwater can be stored.

(3) The seepage layer comprises leaf mold, zeolite and field soil, and the mixed porous medium of zeolite has high porosity, so that the seepage property of the soil can be improved, and the infiltration of surface rainwater into the soil can be accelerated.

(4) The water storage layer is added with 60% of turfy soil, the turfy soil has good water absorption, can absorb more rainwater in rainfall, slowly releases water in the body after the rainfall is finished, and adjusts the soil wettability.

(5) Layer, adsorbed layer, seepage flow layer and water-storage layer are the V-arrangement and lay, and it is 0.3% to plant the longitudinal gradient, and the suitable planting slope can ensure that less rainwater can infiltrate completely, and the V-arrangement slope design can guarantee the quick drainage water storage pipeline of airport pavement rainwater when rainfall is great, improves ecological lawn drainage efficiency.

(6) The lawn is filtered and stored in the water storage pipeline system through the ceramsite, the water storage pipeline system is provided with overflow holes, rainwater which cannot be stored and seeped flows into the overflow pipeline through the overflow holes and is converged into the artificial lake, the water storage pipeline system is uniformly provided with seepage holes, and after rainfall passes, rainwater in the water storage pipeline can slowly seep to irrigate the lawn, so that the rainwater resource utilization rate is improved

Secondly, regarding the technical solution as a whole or from the perspective of products, the technical effects and advantages of the technical solution to be protected by the present invention are specifically described as follows:

the invention provides an ecological lawn laying method capable of rapidly storing, permeating, conveying and recycling rainwater, which improves the storage and drainage efficiency of the ecological lawn in an airport flight area, reduces flight delay, recycles rainwater resources and saves water resources.

Third, as the inventive supplementary proof of the claims of the present invention, the expected profit and commercial value after the technical solution of the present invention is transformed are:

in 8 months in 2017, the parking apron of a certain airport has serious water accumulation, nearly 60 flights are delayed, 9 flights are cancelled, and about 3000 passengers are detained. In 8 months in the next year, the runway of the airport is closed due to rainstorm and water accumulation, and the contact road is nearly 7 hours, so that all flights cannot take off and land. In 2018, 6 months, rainstorm causes a certain airport to catch a wane, large-scale flights are delayed, and hundreds of flights are cancelled. In 8 months in 2018, an airport forms a waning ocean due to rainstorm, the accumulated water of an apron is more than 20 centimeters, and partial flights are delayed or forcibly cancelled. The extra cost of airplane flight delay comprises extra oil consumption cost, delayed passenger compensation cost, passenger signing loss, passenger dissatisfaction reduced cost and the like, and the extra cost of single flight delay is more than ten thousand yuan, while hundreds of flights delay, and the direct compensation cost of an airline company is more than ten million yuan.

When the flight delay occurs, passengers cannot arrive at a commercial site in time after the flight delay, so that the loss of the business opportunity is more than ten thousand yuan, the indirect economic loss of the passengers is caused, the large-area flight delay can cause that more than ten thousand people stay at the airport, the cost loss of the passenger opportunity is converted into the unit time value, the average unit time value is 29.71 yuan/hour, and the cost loss of the passenger opportunity caused by the flight delay is up to two million yuan. Through various related statistical data, the economic loss caused by flight delay is more than five million yuan, and the sponge airport flight area ecological lawn laying system provided by the invention can avoid flight delay caused by rainstorm and has indirect economic value of more than five million yuan.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.

FIG. 1 is a block diagram of an ecological lawn paving system for a flight area of a sponge airport, provided by an embodiment of the invention;

FIG. 2 is a schematic structural diagram of an ecological lawn paving system in a flight area of a sponge airport, provided by an embodiment of the invention;

FIG. 3 is a partially enlarged view of a water storage pipeline according to an embodiment of the present invention;

FIG. 4 is a flow chart of an ecological lawn paving method in a flight area of a sponge airport according to an embodiment of the present invention;

in the figure: 1. a green plant layer; 2. an adsorption layer; 3. a percolation layer; 4. a aquifer; 5. a soil layer; 6. a water collection tank; 601. filtering the ceramsite; 602. a filtration pore; 7. a water storage pipeline; 701. an overflow aperture; 702. a seepage hole; 8. an overflow line; 9. airport runways; 10. a water collection system; 11. a surface rainwater runoff collection system; 12. a soil water storage system; 13. a water storage system.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

First, illustrative embodiments:

example 1

As shown in fig. 1, an embodiment of the present invention provides an ecological lawn paving system in a flight area of a sponge airport, including:

the water collecting system 10 is used for filtering and collecting rainwater to prevent water from accumulating on the road surface;

the surface rainwater runoff collecting system 11 is used for intercepting rainwater, increasing the surface runoff resistance and collecting the surface rainwater runoff into the soil water storage system 12;

a soil impoundment system 12 for impoundment of rainwater;

and the water storage system 13 is used for storing the rainwater filtered and collected by the water collection system 10, the stored rainwater flows into the soil water storage system 12, and the redundant rainwater overflows into the external artificial lake after the soil water storage system is full of rainwater.

In a preferred embodiment of the present invention, the water collecting system 10 includes a water collecting tank 6, the water collecting tank 6 is filled with filtering ceramic particles 601, and a filtering hole 602 is formed at the bottom of the water collecting tank 6 and is communicated with the water storage system 13 through the filtering hole 602.

In a preferred embodiment of the invention, the surface rainwater runoff collecting system 11 comprises a green planting layer 1, an adsorption layer 2 and a seepage layer 3; the seepage layer 3 is positioned above the soil water storage system 12, and the adsorption layer 2 is laid above the seepage layer 3; the green plant layer 1 is planted on the seepage layer 3; the adsorption layer 2 is lower than the airport runway 9 located at the periphery of the adsorption layer 2.

In a preferred embodiment of the invention, the soil impoundment system 12 is provided with an aquifer 4, a soil layer 5 from top to bottom;

the water storage layer 4 is arranged in a V shape, and the planting longitudinal slope is 0.3%;

the water storage system 13 comprises a water storage pipeline 7 and an overflow pipeline 8;

the water storage pipeline 7 is communicated with the water collecting system 10; the upper area of the tail end face of the water storage pipeline 7 is provided with an overflow hole 701 communicated with an overflow pipeline 8, and the overflow pipeline 8 is connected with an external artificial lake;

the bottom end of the water storage pipeline 7 is provided with a plurality of rows of seepage holes 702 along the longitudinal direction, and the seepage holes 702 are communicated with the soil water storage system 12.

Example 2

The embodiment of the invention provides a method for laying ecological lawns in a flight area of a sponge airport, which comprises the following steps:

the rainwater is filtered and collected by the water collecting system 10, so that water on the road surface is prevented;

rainwater interception is carried out by utilizing the surface rainwater runoff collecting system 11, the surface rainwater runoff resistance is increased, and the surface rainwater runoff is collected into the soil water storage system 12;

accumulating rainwater using the soil impoundment system 12;

rainwater filtered and collected by the water collecting system 10 is stored by the water storage system 13, the stored rainwater flows into the soil water storage system 12, and redundant rainwater overflows into an external artificial lake after the soil water storage system is full of rainwater.

Example 3

As shown in fig. 2, the ecological lawn paving system in a sponge airport flight area provided by the embodiment of the invention comprises a green plant layer 1, an adsorption layer 2, a seepage layer 3, a water storage layer 4, a soil layer 5, a water collecting tank 6, filtering ceramic particles 601, filtering holes 602, a water storage pipeline 7, an overflow hole 701, a seepage hole 702, an overflow pipeline 8 and an airport runway 9.

The green plant layer 1 comprises the following components in percentage by volume: 80% of Chinese pennisetum and 20% of herba Euphorbiae Humifusae.

The adsorption layer 2 comprises the following components in percentage by volume: 30% of garden soil, 40% of turfy soil and 30% of pine needle soil.

The seepage layer 3 comprises the following components in percentage by volume: 20% of leaf mold, 10% of zeolite and 70% of garden soil.

The aquifer 4 comprises the following components in percentage by volume: 60% of turfy soil and 40% of garden soil.

The soil sequentially comprises an adsorption layer 2, a seepage layer 3, a water storage layer 4 and a soil layer 5 from top to bottom.

The green planting layer 1, the adsorption layer 2, the seepage layer 3 and the water storage layer 4 are arranged in a V shape, the planting longitudinal slope is 0.3 percent (the longitudinal slope 0.3 percent is the size of the longitudinal slope of the highway, the longitudinal slope refers to the ratio of the height difference between two points of the same slope section on the longitudinal section of the route to the horizontal distance thereof, and is expressed by percentage, the upward slope and the downward slope along the advancing direction of the highway are called the longitudinal slope of the highway, which are in great relation with the dynamic characteristic and the safety of the automobile, the longitudinal slope of the highway comprises a maximum longitudinal slope, a minimum longitudinal slope, a maximum (or steep) gentle slope and a corresponding slope length, the minimum longitudinal slope is the minimum slope value which can be used by roads under special conditions, so that the roads can run quickly, safely and smoothly, the small parts of the longitudinal slope of the road are expected to be good, however, in long cuts and other sections with unobstructed transverse drainage, such as cuts, bridges, tunnels, super-high level curves, shoulders and the like, in order to ensure the requirement of drainage, the stability of the roadbed is prevented from being affected by seeper, and longitudinal slopes with the volume not less than 0.3 percent are arranged, and the volume not less than 0.5 percent is suitable under general conditions);

the cross section of the water collecting tank 6 is of a U-shaped structure, the filtering ceramsite 601 is filled in the water collecting tank 6, and the bottom of the water collecting tank 6 is provided with a filtering hole 602 which is positioned above the water storage pipeline 7 so as to enable the water collecting tank 6 to be communicated with the water storage pipeline 7.

As shown in fig. 3, an overflow hole 701 is formed in the water storage pipe 7 and is communicated with the overflow pipe 8, and the overflow hole 701 is located in an upper region of a distal end surface of the water storage pipe 7; the water storage pipeline 7 and the overflow pipeline 8 are communicated. The overflow pipeline 8 is connected with the artificial lake.

The bottom end of the water storage pipeline 7 is provided with a plurality of rows of penetrating circular seepage holes 702 along the longitudinal direction, and the circular seepage holes 702 are communicated with the water storage layer 4.

Example 4

Based on the ecological lawn paving system provided by the embodiment of the invention in embodiment 1, as shown in fig. 4, the embodiment of the invention provides a method for paving ecological lawns in a flight area of a sponge airport, which comprises the following steps:

s101, selecting filtering ceramsite 601 with proper size, loading the filtering ceramsite into the water collecting tank 6, and arranging a filtering hole 602 at the lower part of the water collecting tank 6, as shown in figure 1.

S102, preparing green plant layer seeds: mixing 80% of the Chinese pennisetum herb and 20% of the humifuse euphorbia herb, and uniformly stirring to obtain green plant layer grass seeds; preparing the soil of the adsorption layer 2: mixing 30% of garden soil, 40% of turfy soil and 30% of pine needle soil, and uniformly stirring to obtain soil of an adsorption layer 2; preparing seepage layer soil: mixing 20% of leaf mold, 10% of zeolite and 70% of garden soil, and uniformly stirring to obtain the seepage layer soil. Preparing aquifer soil: adding turfy soil into 40% of garden soil to prepare aquifer soil.

S103, compacting the foundation soil 5 into a V-shaped structure with a soil longitudinal slope of 0.3%, paving the prepared aquifer 4 soil above the foundation soil 5 with the thickness of about 250mm, and setting the V-shaped longitudinal slope to be 0.3%; communicating the prepared water collecting tank 6 with a water storage pipeline 7 laid in the water storage layer 4 through an opened filtering hole 602, and communicating an overflow hole 701 formed in the water storage pipeline 7 with an overflow pipeline 8; the overflow pipeline 8 penetrates through the water storage layer 4 and the foundation soil 5 and is connected with an external artificial lake; the water storage pipeline 7 is communicated with the water storage layer 4 along a plurality of rows of seepage holes 702 which are arranged longitudinally; the shape of the weep holes 702 is not limited to circular and may be square or other geometric shapes.

S104, scattering the green vegetation layer grass seeds prepared in the step S102 above the water storage layer 4, covering the water storage layer with 50mm of soil of the seepage layer 3, and finally paving the adsorption layer 2 with the thickness of 10mm above the seepage layer 3 to enable the adsorption layer to be lower than the airport runway 9, so that the runoff of redundant surface rainwater can flow into the green vegetation layer 1 conveniently.

In the above embodiment, after the green layer 1 of planting grows and covers the earth's surface completely, green layer 1 of planting is low and dense, can have higher rainwater interception volume, and the network structure that its overground stem of east Africa pennisetum was compiled can improve the surface runoff resistance, improves green retaining capacity of planting, and 20% drives bird plant spot humifuse, and indirect birds of avoiding gathers can reduce the bird and hit the safety problem.

When extreme weather such as heavy rain is met, a large amount of rainwater can be intercepted by the blades of the green planting layer 1, the overground stems and the large granular substrates of the adsorption layer 2, and redundant rainwater quickly seeps into the turfy soil of the water storage layer 4 through the seepage layer 3, so that the situation of ponding of the lawn during the peak rainfall is reduced.

The accumulated water on the airport pavement can quickly flow into the water collecting tank 6 through the longitudinal lawn slope and the internal filtering ceramsite 601 flows into the water storage pipeline 7 through the filtering holes 602, so that the rainwater is filtered, and the accumulated water on the pavement is avoided. When the interior of the water storage pipeline 7 is full of rainwater, the rainwater flows into the overflow pipeline 8 through the overflow hole 701 and finally flows into the artificial lake, and high drainage efficiency can be achieved in extreme weather.

After rainfall, the rainwater after filtering has been held to full in the water storage pipeline 7, irrigates the lawn through the slow seepage flow of circular seepage hole 702, and the rainwater is direct to accomplish the long-time slow irrigation on lawn underground, can reduce the water waste that the evaporation of surface irrigation water caused, again can the rational utilization water resource.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

II, application embodiment:

based on the method for paving the ecological lawn in the sponge airport flight area, the ecological lawn in the sponge airport flight area can be paved.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made by those skilled in the art within the technical scope of the present invention disclosed herein, which is within the spirit and principle of the present invention, should be covered by the present invention.

Claims

1. The utility model provides an ecological lawn of sponge airport flight area system of laying which characterized in that, ecological lawn of sponge airport flight area system of laying includes:

the water collecting system (10) is used for filtering and collecting rainwater and preventing water on the road surface;

the surface rainwater runoff collecting system (11) is used for intercepting rainwater, increasing surface runoff resistance and collecting surface rainwater runoff into the soil water storage system (12);

a soil impoundment system (12) for impoundment of rain water;

and the water storage system (13) is used for storing the rainwater filtered and collected by the water collection system (10), the stored rainwater flows into the soil water storage system (12), and the redundant rainwater overflows into the external artificial lake after the soil water storage system is full of rainwater.

2. The ecological lawn paving system of claim 1, characterized in that the water collecting system (10) comprises a water collecting tank (6), the water collecting tank (6) is filled with filtering ceramsite (601), the bottom of the water collecting tank (6) is provided with filtering holes (602), and the filtering holes (602) are communicated with the water storage system (13).

3. The ecological lawn paving system of claim 1, characterized in that the surface rainwater runoff collection system (11) comprises a green planting layer (1), an adsorption layer (2), and a seepage layer (3);

the seepage layer (3) is positioned above the soil water storage system (12), and the adsorption layer (2) is laid above the seepage layer (3); the green plant layer (1) is planted on the seepage layer (3), the airport runway (9) is arranged on the periphery of the adsorption layer (2), and the adsorption layer (2) is arranged below the airport runway (9).

4. The ecological lawn paving system of claim 3, characterized in that the green layer (1) is composed of 80% of Chinese pennisetum and 20% of Euphorbia maculata by volume percentage.

5. The ecological lawn paving system of claim 3, characterized in that the adsorption layer (2) is composed of 30% of garden soil, 40% of turfy soil and 30% of pine needle soil by volume percentage.

6. The ecological lawn paving system of claim 3, characterized in that the seepage layer (3) is composed of 20% of leaf mold, 10% of zeolite and 70% of field soil by volume percentage.

7. The sponge airport flight area ecological lawn paving system of claim 1, characterized in that the soil impoundment system (12) is arranged with aquifer (4) and soil layer (5) from top to bottom;

the water storage layer (4) is composed of 60% of turfy soil and 40% of garden soil in percentage by volume, the water storage layer (4) is arranged in a V shape, and the planting longitudinal slope is 0.3%;

the water storage system (13) comprises a water storage pipeline (7) and an overflow pipeline (8); the water storage pipeline (7) is communicated with a water collecting system (10), the upper area of the tail end face of the water storage pipeline (7) is provided with an overflow hole (701) communicated with an overflow pipeline (8), and the overflow pipeline (8) is connected with an external artificial lake; the bottom end of the water storage pipeline (7) is longitudinally provided with a plurality of rows of seepage holes (702), and the seepage holes (702) are communicated with the soil water storage system (12).

8. A sponge airport flight area ecological lawn laying method for the sponge airport flight area ecological lawn laying system of any one of claims 1-7, characterized in that the sponge airport flight area ecological lawn laying method comprises:

the rainwater is filtered and collected by using the water collecting system (10) to prevent water on the road surface;

rainwater interception is carried out by utilizing the surface rainwater runoff collecting system (11), the surface rainwater runoff resistance is increased, and the surface rainwater runoff is collected into the soil water storage system (12);

accumulating rainwater using a soil impoundment system (12);

rainwater filtered and collected by the water collecting system (10) is stored by the water storage system (13), the stored rainwater flows into the soil water storage system (12), and redundant rainwater overflows into an external artificial lake after the soil water storage system is full of rainwater.

9. The method for laying the ecological lawn in the flight area of the sponge airport as claimed in claim 8, which comprises the following steps:

s1, selecting filtering ceramsite (601) with proper size, putting the filtering ceramsite into a water collecting tank (6), and arranging a filtering hole (602) at the lower part of the water collecting tank (6);

s2, preparing green plant layer seeds: mixing 80% of the Chinese pennisetum herb and 20% of the humifuse euphorbia herb, and uniformly stirring to obtain green plant layer grass seeds;

preparing adsorption layer soil: mixing 30% of garden soil, 40% of turfy soil and 30% of pine needle soil, and uniformly stirring to obtain adsorption layer soil;

preparing seepage layer soil: mixing 20% of leaf mold, 10% of zeolite and 70% of garden soil, and uniformly stirring to obtain seepage layer soil;

preparing aquifer soil: adding 40% of garden soil into turfy soil to prepare aquifer soil;

s3, compacting the foundation soil (5) into a V-shaped structure with a soil longitudinal slope of 0.3%, paving the prepared aquifer (4) soil above the foundation soil (5), and setting the V-shaped longitudinal slope to be 0.3%; communicating the prepared water collecting tank (6) with a water storage pipeline (7) laid in the water storage layer (4) through an opened filtering hole (602), wherein an overflow hole (701) formed in the water storage pipeline (7) is communicated with an overflow pipeline (8); the overflow pipeline (8) penetrates through the water storage layer (4) and the foundation soil (5) and is connected with an external artificial lake; the water storage pipeline (7) is communicated with the water storage layer (4) along a plurality of rows of seepage holes (702) which are arranged longitudinally;

s4, scattering the green grass seeds prepared in the step S2 above the water storage layer (4), covering the soil of the seepage layer (3), and finally paving the adsorption layer (2) above the seepage layer (3) to enable the adsorption layer (2) to be lower than the airport runway (9).

10. An ecological lawn in a sponge airport flight area, which is laid by the method of claim 8.