阅读说明：本技术 砂质土壤绿化植地的局部改良方法 (Local improvement method for sandy soil greening planting land ) 是由 李亚 徐新平 徐小花 于 2020-05-22 设计创作，主要内容包括：本发明涉及一种砂质土壤绿化植地的局部改良方法,包括如下步骤：S1、地下水引出；S1-1、整平场地；对砂质土壤表面进行整平,形成施工面；对施工面进行勘测,获得地下水的标高；S1-2、塑料排水板施工；对塑料排水板进行穿靴,将塑料排水板一端打入到施工面以下,使得塑料排水板另一一端位于施工面以上；S2、植生袋安放；当地下水渗透到施工面以上时,将植生袋放置于施工面上。本发明设置塑料排水板将地下的孔隙水吸引到施工面以上,供植生袋内的种子成长,避免了人工浇水,同时加快了种子的成长速度。(The invention relates to a local improvement method for sandy soil greening planting land, which comprises the following steps: s1, leading out underground water; s1-1, leveling the ground; leveling the surface of sandy soil to form a construction surface; surveying the construction surface to obtain the elevation of underground water; s1-2, constructing a plastic drainage plate; the boot penetrating method comprises the following steps that boot penetrating is conducted on a plastic drainage plate, one end of the plastic drainage plate is driven to the position below a construction surface, and the other end of the plastic drainage plate is located above the construction surface; s2, placing the plant growing bags; when groundwater permeates above the construction surface, the plant biological bags are placed on the construction surface. The plastic drainage plate is arranged to attract underground pore water to the upper side of the construction surface for the seeds in the plant growth bag to grow, so that manual watering is avoided, and the growth speed of the seeds is increased.)

1. A local improvement method for sandy soil greening planting land is characterized in that: the method comprises the following steps:

s1, leading out underground water;

s1-1, leveling the ground;

leveling the surface of sandy soil to form a construction surface (1); surveying the construction surface (1) to obtain the elevation of underground water;

s1-2, constructing a plastic drainage plate (2);

the boot is put on the plastic drainage plate (2), one end of the plastic drainage plate (2) is driven into the construction surface (1) so that the other end of the plastic drainage plate (2) is positioned above the construction surface (1);

s2, placing a plant growing bag (6);

when groundwater permeates to the construction surface (1), the plant biological bag (6) is placed on the construction surface (1).

2. The method for locally improving sandy soil green lands according to claim 1, characterized in that: in the construction of the plastic drainage board (2) of S1-2, the boot penetrating process for the plastic drainage board (2) is as follows: preparing a sleeve (3), a steel bar (4) and a plate nail (21); the end part of the plastic drainage plate (2) penetrates through the sleeve (3), a steel bar (4) is placed at the end part of one end, penetrating through the sleeve (3), of the plastic drainage plate (2), the end part of the plastic drainage plate (2) is bent to enable the plastic drainage plate (2) to be overlapped, and the end part of the plastic drainage plate (2) and the overlapped plastic drainage plate (2) are fixed through a plate nail (21); after the shoe is worn, the steel bar (4) faces downwards, and the sleeve (3) is driven below the construction surface (1).

3. The method for locally improving sandy soil green lands according to claim 2, characterized in that: after the reinforcing steel bars (4) are prepared, the two ends of the reinforcing steel bars (4) are bent to enable the reinforcing steel bars (4) to be T-shaped, and the openings of the T-shaped reinforcing steel bars (4) can be sleeved outside the sleeve (3); when the sleeve (3) is driven into the construction surface (1) below, the opening of the T-shaped steel bar (4) faces upwards and is sleeved outside the sleeve (3).

4. The method for locally improving sandy soil green lands according to claim 1, characterized in that: the underground water extraction of the S1 also comprises S1-3, and a counterweight layer (5) is constructed; preparing sand, and paving the sand above the construction surface (1) to form a weight layer (5); sand is exposed at the top of the plastic drainage plate (2).

5. The method for locally improving sandy soil greening planting fields as claimed in claim 4, wherein the method comprises the steps of: in the construction of the weight layer (5) of S1-3, sand and clay particles are prepared and mixed, and the mixture is spread on the construction surface (1) to form the weight layer (5).

6. The method for locally improving sandy soil green lands according to claim 1, characterized in that: in the placement of the plant growth bag (6) of S2, the preparation method of the plant growth bag (6) is as follows: preparing polyvinyl alcohol films, placing seeds (62) on one polyvinyl alcohol film, and taking the other polyvinyl alcohol film to carry out hot-pressing compounding on the edge of the other polyvinyl alcohol film and the edge of the polyvinyl alcohol film to form a plant growth bag (6).

7. The method for locally improving sandy soil greening planting fields as claimed in claim 6, wherein: in the preparation process of the plant growth bag (6), the surface of the polyvinyl alcohol film is punctured to form holes (611), and then the two polyvinyl alcohol films are compounded.

8. The method for locally improving sandy soil greening planting fields as claimed in claim 6, wherein: in the manufacturing process of the plant growing bag (6), the inside of the plant growing bag (6) is filled with a mixture of seeds (62) and straw powder.

Technical Field

The invention relates to the technical field of sandy soil improvement, in particular to a local improvement method for sandy soil greening planting land.

Background

Sandy soil refers to soil with high sand content, coarse particles, high water seepage speed, poor water retention performance and good ventilation performance. The survival rate of the preparation in sandy soil is low and the preparation is allowed to develop without improvement, which may cause the generation of desert. Therefore, improvement of sandy soil is crucial in garden construction.

Existing sandy soil methods include chemical and plant improvement. Wherein, the plant improvement has little influence on the soil framework, is beneficial to the vegetation planting in the later period, and is advocated vigorously. Referring to the figure, the plant improvement method comprises the following steps: s1, loosening the soil to enable sandy soil to be fluffy to form a construction surface; s1, placing the plant growth bags on the construction surface in sequence, and watering intermittently to keep the surfaces of the plant growth bags moist until the seeds inside the plant growth bags root and sprout.

The above prior art solutions have the following drawbacks: due to the characteristic of good water permeability of sandy soil, water poured on the plant growth bag can immediately run off through the sandy soil, so that the requirement on watering frequency is high, water resources are wasted, and large human resources also need to be consumed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a local improvement method for sandy soil greening planting land, which has the effect of no need of artificial irrigation.

The above object of the present invention is achieved by the following technical solutions:

a local improvement method for sandy soil greening planting land comprises the following steps:

s1, leading out underground water;

s1-1, leveling the ground;

leveling the surface of sandy soil to form a construction surface; surveying the construction surface to obtain the elevation of underground water;

s1-2, constructing a plastic drainage plate;

the boot penetrating method comprises the following steps that boot penetrating is conducted on a plastic drainage plate, one end of the plastic drainage plate is driven to the position below a construction surface, and the other end of the plastic drainage plate is located above the construction surface;

s2, placing the plant growing bags;

when groundwater permeates above the construction surface, the plant biological bags are placed on the construction surface.

By adopting the technical scheme, the capillary water absorption principle is utilized, the gap water below the construction surface is absorbed above the construction surface through the holes of the plastic drainage plate, so that the construction surface is wetted, the process probably needs 1-3 months, and the specific time is different from the elevation of underground water. When the construction surface is wet, the plant growth bag is placed on the construction surface, and the plastic drainage plate can always supply underground pore water to the plant growth bag, so that the rooting and germination of seeds are promoted, and the intermittent watering is avoided. The underground water still enters into the ecological cycle after being utilized, and the additional water resource is not lost, so the method is very environment-friendly.

The present invention in a preferred example may be further configured to: in the construction of the plastic drainage board of S1-2, the boot penetrating process for the plastic drainage board is as follows: preparing a sleeve, a steel bar and a plate nail; the end part of the plastic drainage plate penetrates through the sleeve, the steel bar is placed at the end part of one end of the plastic drainage plate penetrating through the sleeve, the end part of the plastic drainage plate is bent to enable the plastic drainage plate to be overlapped, and the end part of the plastic drainage plate and the overlapped plastic drainage plate are fixed by using a plate nail; after the shoe is worn, the steel bars face downwards, and the sleeve is driven below a construction surface.

Through adopting above-mentioned technical scheme, be convenient for squeeze into the below position of construction face with the plastics drain bar to make its tip be detained inside sandy soil.

The present invention in a preferred example may be further configured to: after preparing the reinforcing steel bars, bending the two ends of the reinforcing steel bars to enable the reinforcing steel bars to be in a T shape, wherein the openings of the T-shaped reinforcing steel bars can be sleeved outside the sleeves; when the sleeve is driven into the construction surface, the opening of the T-shaped steel bar faces upwards and is sleeved outside the sleeve.

Through adopting above-mentioned technical scheme, further need squeeze into the inside one end of sandy soil to the plastics drain bar and fix a position to it is under construction, improves the efficiency of construction conveniently more.

The present invention in a preferred example may be further configured to: the underground water extraction of the S1 also comprises S1-3, and a weight layer is constructed; preparing sand, and paving the sand above a construction surface to form a weight layer; the sand is exposed at the top of the plastic drainage plate.

Through adopting above-mentioned technical scheme, the setting of counterweight layer can exert the effort to the pore water below the construction face to make it extruded from the plastics drain bar more fast, shorten the time of water.

The present invention in a preferred example may be further configured to: in the construction of the weight layer of S1-3, sand and clay particles are prepared to be mixed and spread over the construction surface to form the weight layer.

Through adopting above-mentioned technical scheme, the clay granule can provide fine planting matrix for the seed that just takes root to make it grow better.

The present invention in a preferred example may be further configured to: in the planting of the plant growth bag of S2, the preparation method of the plant growth bag is as follows: preparing polyvinyl alcohol films, placing seeds on one polyvinyl alcohol film, taking the other polyvinyl alcohol film, and performing hot-pressing compounding on the edge of the other polyvinyl alcohol film and the edge of the polyvinyl alcohol film to form the plant growing bag.

By adopting the technical scheme, the polyvinyl alcohol film has good water solubility, the plant growing bag can be soaked in the extruded underground water along with the continuous extrusion of the underground water, the surface of the plant growing bag is gradually dissolved, and the seeds can root and sprout in about one week. The rooted seeds are scattered along with the water flow, and the rooted seeds have good ground grabbing force, so that the rooted seeds grow in a nearby soil layer, and the uniformity of seed distribution is improved. In addition, the polyvinyl alcohol dissolved in water can permeate into the lower part of the sandy soil to form a water retention structure, so that the sandy soil has better water retention. In addition, the polyvinyl alcohol can improve weak acidity of sandy soil, so that the pH of the sandy soil tends to be neutral, and the sandy soil is more suitable for growth of plants.

The present invention in a preferred example may be further configured to: in the preparation process of the plant growth bag, the surfaces of the polyvinyl alcohol films are punctured to form holes, and then the two polyvinyl alcohol films are compounded.

Through adopting above-mentioned technical scheme, the hole is convenient for water to get into to soak the seed better for the speed that the seed sprouts.

The present invention in a preferred example may be further configured to: in the process of manufacturing the plant growing bag, the mixture of seeds and straw powder is filled in the plant growing bag.

By adopting the technical scheme, the straw powder has good heat preservation performance after absorbing water, and meanwhile, the straw powder can provide nutrients for the rooted seeds and promote the growth of the rooted seeds.

In summary, the invention includes at least one of the following beneficial technical effects:

1. the plastic drainage plate is arranged to attract underground pore water to the construction surface for the seeds in the plant growing bag to grow, so that manual watering is avoided, and the growth speed of the seeds is increased;

2. the plant growth bag is made of polyvinyl alcohol, so that in the process of rooting and sprouting of seeds, a polyvinyl alcohol film is dissolved, the water retention of sandy soil is improved, the seeds are convenient to disperse and grow in the later period, and meanwhile, the trouble that the plant growth bag is manually picked up in the prior art is avoided.

Drawings

FIG. 1 is a schematic overall structure diagram of a boot-wearing process of a plastic drainage plate;

FIG. 2 is a schematic view of the overall structure of the process for making the plant growth bag;

FIG. 3 is a schematic top view of the vegetation bag placed over the weight layer;

fig. 4 is a partial structure view of a cross-sectional view a-a of fig. 3.

In the figure, 1, construction surface; 2. a plastic drain board; 21. plate nails; 3. a sleeve; 4. reinforcing steel bars; 5. a weight layer; 6. planting a biological bag; 61. a plant growth film; 611. a hole; 62. and (4) seeds.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the local improvement method for sandy soil greening planting land disclosed by the invention comprises the following steps:

s1, leading out underground water;

s1-1, leveling the ground;

leveling the surface of sandy soil by matching an excavator with manual finishing to form a construction surface 1; surveying the construction surface 1 to obtain the elevation of underground water;

s1-2, constructing a plastic drainage plate 2;

preparing a plastic drainage plate 2, a sleeve 3, a steel bar 4, a plate nail 21 and a plate inserting machine; the length of the sleeve 3 is greater than the distance between the construction surface 1 and the minimum underground water elevation, and meanwhile, the sleeve 3 is not less than 1 m; bending two ends of the steel bar 4 by using a bending machine to enable the steel bar 4 to be in a T shape, wherein the T-shaped steel bar 4 can be sleeved outside the sleeve 3; taking a roll of plastic drainage board 2 and a sleeve 3, and penetrating the end part of the plastic drainage board 2 through the sleeve 3; placing a T-shaped steel bar 4 at the end part of one end of the plastic drainage plate 2 penetrating through the sleeve 3, bending the end part of the plastic drainage plate 2 to enable the plastic drainage plate 2 to be overlapped, and fixing the end part of the plastic drainage plate 2 and the overlapped plastic drainage plate 2 by using a plate nail 21 to enable the steel bar 4 to be limited in a channel formed by the plastic drainage plate 2;

lofting the construction surface 1, and determining the arrangement position of the plastic drainage plate 2;

the plate inserting machine is in place, the sleeve 3 is clamped, the opening of the T-shaped steel bar 4 is upward, the T-shaped steel bar is sleeved outside the sleeve 3, and the sleeve 3 is driven into a soil layer; due to the limiting effect of the end part of the sleeve 3 and the reinforcing steel bar 4, the plastic drainage plate 2 enters a soil layer until the sleeve 3 is driven into a designed elevation; the sleeve 3 is pulled out by a board inserting machine, so that the plastic drainage board 2 is retained in the sandy soil under the viscous force action of the steel bars 4 and the soil, and the depth of the plastic drainage board 2 entering the sandy soil is not less than 0.5 m; cutting off the plastic drainage plate 2 above the construction surface 1, wherein the length of the plastic drainage plate 2 left above the construction surface 1 is not less than 10 cm;

s1-3, constructing a counterweight layer 5;

preparing sand and dried clay particles, and mixing the sand and the dried clay particles according to the proportion of 1:1 to form a weight material; paving the counterweight material on the surface of the construction surface 1, wherein the paving thickness is 30-50 mm, and the specific thickness is determined according to the depth of underground water; and forming a weight layer 5 after paving, wherein the top of the plastic drainage plate 2 is positioned above the weight layer 5.

S2, placing the plant growth bag 6;

s2-1, preparing a polyvinyl alcohol film with the thickness of 1.5 mm; perforating a polyvinyl alcohol film to uniformly distribute holes 611 with the aperture not larger than 2mm on the polyvinyl alcohol film to form a plant growth film 61; placing a piece of plant growing film 61 in an inwards concave mould, wherein the edge of the plant growing film extends to the outside of an inwards concave area of the mould, placing grass seeds or other seeds 62 of plants suitable for the existence of sandy soil on the surface of the plant growing film 61, and covering a layer of straw powder on the seeds 62; or mixing the straw powder and the seeds 62 and then placing the mixture on the plant growth film 61, wherein the mixing ratio of the straw powder to the seeds is not more than 0.5: 1; coating a layer of plant glue on the edge of the plant growth film 61, covering the other layer of plant growth film 61 above the seeds 62, performing hot-pressing shaping on the edges of the two layers of plant growth films 61 by using a hot press, wherein the hot-pressing time is not more than 2s, and forming a plant growth bag 6 after shaping;

s2-2, after the groundwater permeates into the weight layer 5 and is moistened, placing one side of the plane of the plant biological bag 6 on the weight layer 5, and enabling the convex side of the plant biological bag 6 to face upwards; the interval between the adjacent plant growth bags 6 is between 0.5m and 1 m; in about one week, the seeds 62 start to root and sprout, meanwhile, the plastic drainage plates 2 gradually convey underground water to the surface of the weight layer 5 for the seeds 62 to grow, the planting films 61 are gradually dissolved in the water, and the seeds 62 grow scattered.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.