CN213306415U

CN213306415U - Saline and alkaline land afforestation structure

Info

Publication number: CN213306415U
Application number: CN202021575102.3U
Authority: CN
Inventors: 崔艳; 吴春冬; 张宏光
Original assignee: Tianjin Teda Landscape Construction Co ltd
Current assignee: Tianjin Teda Landscape Construction Co ltd
Priority date: 2020-08-01
Filing date: 2020-08-01
Publication date: 2021-06-01
Anticipated expiration: 2030-08-01

Abstract

The utility model relates to a saline and alkaline land afforestation structure, including setting up in the planting layer of saline and alkaline land top, the basic unit of saline and alkaline land below, the first salt drainage pipe of burying underground in the saline and alkaline land, first salt drainage pipe intercommunication has the salt drainage well, is provided with the escape canal between planting layer and the saline and alkaline land, and the cover has the baffle on the escape canal, has seted up a plurality of inlet openings on the baffle, and the intercommunication has the drainage subassembly between escape canal and the basic unit. The application has the effect of reducing the backtracking of saline and alkaline water to the planting layer.

Description

Saline and alkaline land afforestation structure

Technical Field

The application relates to the field of saline-alkali soil improvement structures, in particular to a saline-alkali soil greening structure.

Background

The saline-alkali soil is a land with excessive soluble salt in soil, the reason for salinization of the land is that because the salt content of the soil and underground water is too high, under the action of strong evaporation on the earth surface, shallow underground water is conveyed to the earth surface through a capillary tube to be evaporated, the capillary tube drives the earth surface to remove the salt in the water, after the water is evaporated, the salt content of the soil rises through the capillary action and is accumulated on the surface layer of the soil, the salt content is remained in the shallow earth surface and the earth surface, and the saline-alkali soil is formed if insufficient fresh water is diluted and discharged. Saline-alkali soil is high in salt content and not suitable for plant growth, and the occupied area is large, so that how to develop and utilize the saline-alkali soil and greening the saline-alkali soil becomes an important subject of current research.

At present, chinese patent with publication number CN205694139U discloses a saline and alkaline land landscaping system, which comprises a salt discharge part and a heating part arranged on the saline and alkaline land, and the saline and alkaline land landscaping system further comprises a planting part arranged above the salt discharge part and the heating part. The saline-alkali soil planting device has the advantages that the saline-alkali soil discharging part effectively reduces a water channel between the saline-alkali soil and the planting layer, saline-alkali water of the planting part is led out, meanwhile, the heating part can effectively improve the ground temperature of the planting area, and the plants on the planting layer can be guaranteed to survive smoothly and grow well under the low-temperature condition.

Aiming at the related technologies, the inventor thinks that when rainfall is large, rainwater permeates into the saline-alkali soil from the planting part, and can permeate into the base layer because the rainfall is large and cannot be discharged from the salt discharge pipe, and the rainwater enters the base layer, wherein salt can be dissolved in the rainwater, and the saline water moves downwards under the action of gravity, so that a part of the saline water is discharged along with the underground water, and a part of the saline water is remained in the base layer, and the saline water in the base layer can be separated out upwards after a long time, and can return to the saline-alkali soil or the planting part, and the defect that the saline water can seriously influence the growth of plants in the planting part exists.

SUMMERY OF THE UTILITY MODEL

Saline and alkaline water backtracking when in order to avoid precipitation great this application provides a saline and alkaline land greening structure.

The application provides a saline and alkaline land afforestation structure adopts following technical scheme:

the utility model provides a saline and alkaline land afforestation structure, is including setting up in the planting layer of saline and alkaline land top, the basic unit of saline and alkaline land below, the first salt drainage pipe of burying underground in the saline and alkaline land, and first salt drainage pipe intercommunication has the salt drainage well, plants and is provided with the escape canal between layer and the saline and alkaline land, and the cover has the baffle on the escape canal, has seted up a plurality of inlet openings on the baffle, and the intercommunication has the drainage subassembly between escape canal and the basic unit.

Through adopting above-mentioned technical scheme, set up the escape canal between saline and alkaline land and planting layer, the rainwater passes through the escape canal and discharges partly like this when the rainfall, partly in addition enters into the saline and alkaline land in the first salt pipe of rethread row discharges into the salt well, unnecessary water passes through in the drainage subassembly gets into the basal layer, the water yield of basal layer increases the back, wherein salt can dissolve in aqueous, salt solution downstream under the effect of gravity, and go into the groundwater, drain away along with the groundwater at last, thereby effectively reduce the intrabasal salt to saline and alkaline land, the planting layer is appeared, reach the effect of reducing basic layer saline and alkaline water backtracking.

Preferably, the drainage ditch is of an arc-shaped structure with an upward opening, a plurality of drainage holes are formed in the bottom surface of the drainage ditch, a baffle is covered on the drainage ditch, and a plurality of water inlet holes are formed in the baffle.

Through adopting above-mentioned technical scheme, during the rainfall, the rainwater flows into the escape canal through the inlet opening on the baffle in, and the escape canal sets up to the arc structure, and the escape canal bottom surface of being convenient for gathers the rainwater to the rainwater flows from the wash port with higher speed.

Preferably, a plurality of drainage ditches are closely arranged side by side along the length direction of the planting layer.

Through adopting above-mentioned technical scheme, the escape canal closely is provided with a plurality ofly side by side, has increased the cover surface in escape canal for partly water can ooze down and get into the saline and alkaline land, with the salt in the saline and alkaline land in the salt drainage well of discharging through first salt drainage pipe, another part water is used for discharging the salinity of basic unit's water, effectively reduces basic unit's salt and appears.

Preferably, a second salt discharging pipe is buried in the base layer and communicated with the salt discharging well.

Through adopting above-mentioned technical scheme, arrange the salt pipe through the second and discharge the saltwater in the basic unit to in arranging the salt well to reduce the saltwater backtracking in the basic unit to planting the layer.

Preferably, the drainage assembly comprises a connecting pipe and a water guide pipe, the connecting pipe is communicated with one end of the drainage ditch, the connecting pipe is communicated with the water guide pipe, and the water guide pipe is embedded in the base layer.

Through adopting above-mentioned technical scheme, pass through aqueduct and basic unit intercommunication with the escape canal for in the escape canal too late discharged water flows into the basic unit through the aqueduct, thereby salt lye in the acceleration basic unit discharges through the second row of salt pipe.

Preferably, a water pipe is embedded in the base layer, a water through hole is formed in the water pipe, and the water pipe is communicated with the water guide pipe.

By adopting the technical scheme, the water guide pipe is communicated with the water through pipe, so that water in the drainage ditch flows into the water through pipe through the water guide pipe and flows into the base layer through the water through holes, and therefore the discharge of the saline-alkali water in the base layer through the second salt discharge pipe is accelerated.

Preferably, the second salt discharging pipe is positioned below the water pipe.

Through adopting above-mentioned technical scheme, the water that flows out from the limbers of water service pipe is followed the gravity action and is flowed down, is located the below of water service pipe with the second row of salt pipe, and the water of being convenient for flows into in the second row of salt pipe to salt lye in the basement is discharged through the second row of salt pipe with higher speed.

Preferably, a reverse filtering layer is arranged between the drainage ditch and the planting layer.

By adopting the technical scheme, the inverted filter layer is made of 2-4 layers of materials such as sand, gravel or pebble with different particle sizes, the particles are gradually increased along the direction of water flow, the particles of any layer are not allowed to pass through the pores of the adjacent thicker layer, so that the filtering effect is achieved, the sand and the sand are effectively prevented from entering the drainage ditch to influence the drainage of rainwater, meanwhile, the soil of the planting layer is protected from flowing away along with the rainwater, and the plant growth of the planting layer is not influenced.

To sum up, this application includes following at least one saline and alkaline land greening structure beneficial technical effect:

1. the drainage ditch is arranged, so that rainwater can be effectively reduced from permeating into the base layer, and the situation that the water in the base layer cannot be discharged and backtracks to the planting layer to influence the growth of plants is avoided;

2. the water service pipe is used with the cooperation of second row salt pipe, discharges the saltwater lye in the basic unit, prevents the saltwater lye of basic unit backtracking.

Drawings

Fig. 1 is a schematic sectional structure of the present application.

Description of reference numerals: 1. saline-alkali soil; 11. a first salt discharge pipe; 111. a salt draining well; 2. planting a layer; 3. a base layer; 31. a second salt discharge pipe; 32. a water pipe; 321. a water through hole; 4. a drainage ditch; 41. a baffle plate; 411. a water inlet hole; 42. a drain hole; 5. a drainage assembly; 51. a connecting pipe; 52. a water conduit; 6. and (4) an inverted filter layer.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1, the embodiment of the application discloses a saline-alkali soil greening structure,

including setting up in the planting layer 2 of 1 top in saline and alkaline land, the basic unit 3 of 1 below in saline and alkaline land, the first salt elimination pipe 11 of burying underground in saline and alkaline land 1, first salt elimination pipe 11 intercommunication has row salt well 111, is provided with escape canal 4 between planting layer 2 and the saline and alkaline land 1, and 4 tops in escape canal are laid and are had baffle 41, have seted up a plurality of inlet openings 411 on the baffle 41, and the intercommunication has drainage components 5 between escape canal 4 and the basic unit 3, and drainage canal 4 has laid inverted filter 6 with planting between the layer 2.

During the rainfall, the rainwater oozes planting layer 2 and enters into escape canal 4 through the filtration of anti-filtering layer 6 in, and rethread escape canal 4 discharges the rainwater, and the rainwater that flows into in saline and alkaline land 1 simultaneously discharges in the salt drainage well 111 through first salt discharge pipe 11.

Referring to fig. 1, the length direction of escape canal 4 is perpendicular to the length direction of planting layer 2, and escape canal 4 closely is provided with a plurality ofly side by side along planting layer 2 length direction, and escape canal 4 is the ascending arc structure of opening, and a plurality of wash ports 42 have been seted up to escape canal 4 bottom surface.

The rainwater flowing into the drainage ditch 4 flows into the saline-alkali soil 1 through the drainage hole 42 and is discharged into the salt discharging well 111 through the first salt discharging pipe 11.

Referring to fig. 1, the drain assembly 5 includes a connecting pipe 51 and a water guide pipe 52, the connecting pipe 51 is communicated with one end of the drain ditch 4, the connecting pipe 51 is horizontally arranged, the water guide pipe 52 is vertically arranged, the connecting pipe 51 is communicated with the top end of the water guide pipe 52, the water service pipe 32 is embedded in the base layer 3, the water service pipe 32 is horizontally arranged in a plurality, a plurality of water service holes 321 are formed in the water service pipe 32, and one end of each water service pipe 32 is communicated with the water guide pipe 52. A plurality of second salt discharge pipes 31 are embedded below the water pipe 32, and the second salt discharge pipes 31 are horizontally arranged and communicated with the salt discharge well 111.

When the water in the drainage ditch 4 is too late to be discharged from the drain hole 42, the water flows into the water conduit 52 through the connection pipe 51, flows into the water conduit 32 through the water conduit 52, flows into the base layer 3 through the water through hole 321 of the water conduit 32, and is discharged into the salt discharge well 111 through the second salt discharge pipe 31.

Referring to fig. 1, the inverted filter 6 is divided into three layers, and is formed by laying gravel, crushed stone and cobblestones in sequence from top to bottom.

The rainwater infiltration planting layer 2 enters the inverted filter layer 6 for filtration, so that the sediment is prevented from entering the drainage ditch 4 to influence the drainage of rainwater.

The implementation principle of the greening structure of the saline-alkali soil in the embodiment of the application is as follows: during rainfall, rainwater permeates the planting layer 2 and enters the drainage ditch 4 through the filtration of the inverted filter 6, the rainwater flows into the saline-alkali soil 1 through the drainage hole 42 of the drainage ditch 4, the rainwater flowing into the saline-alkali soil 1 is discharged into the salt drainage well 111 through the first salt drainage pipe 11, meanwhile, the rainwater in the drainage ditch 4 is short of the water discharged from the drainage hole 42, the rainwater flows into the water guide pipe 52 through the connecting pipe 51, the rainwater flows into the water guide pipe 32 through the water guide pipe 52, the rainwater flows into the base layer 3 through the water through hole 321 of the water guide pipe 32, the rainwater is discharged into the salt drainage well 111 through the second salt drainage pipe 31, and the effect of discharging the saline-alkali water in the base layer 3 is achieved.

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

Claims

1. The utility model provides a saline and alkaline land afforestation structure, is including setting up in planting layer (2) of saline and alkaline land (1) top, basic unit (3) of saline and alkaline land (1) below, the first salt elimination pipe (11) of burying underground in saline and alkaline land (1), and first salt elimination pipe (11) intercommunication has salt elimination well (111), its characterized in that: be provided with escape canal (4) between planting layer (2) and saline and alkaline land (1), laid on escape canal (4) and covered baffle (41), seted up a plurality of inlet openings (411) on baffle (41), the intercommunication has drainage subassembly (5) between escape canal (4) and basic unit (3).

2. The greening structure for saline-alkali soil as claimed in claim 1, wherein: the drainage ditch (4) is of an arc-shaped structure with an upward opening, and a plurality of drainage holes (42) are formed in the bottom surface of the drainage ditch (4).

3. The greening structure for saline-alkali soil as claimed in claim 1, wherein: the drainage ditch (4) are closely provided with a plurality of side by side along planting layer (2) length direction.

4. The greening structure for saline-alkali soil as claimed in claim 1, wherein: a second salt discharging pipe (31) is buried in the base layer (3), and the second salt discharging pipe (31) is communicated with a salt discharging well (111).

5. The greening structure for saline-alkali soil as claimed in claim 4, wherein: the drainage assembly (5) comprises a connecting pipe (51) and a water guide pipe (52), the connecting pipe (51) is communicated with one end of the drainage ditch (4), the connecting pipe (51) is communicated with the water guide pipe (52), and the water guide pipe (52) is embedded in the base layer (3).

6. The greening structure for saline-alkali soil as claimed in claim 5, wherein: a water pipe (32) is embedded in the base layer (3), a water through hole (321) is formed in the water pipe (32), and the water pipe (32) is communicated with the water guide pipe (52).

7. The greening structure for saline-alkali soil as claimed in claim 5, wherein: the second salt discharging pipe (31) is positioned below the water passing pipe (32).

8. The greening structure for saline-alkali soil as claimed in claim 1, wherein: and a reverse filtering layer (6) is arranged between the drainage ditch (4) and the planting layer (2).