CN216874209U - Three-dimensional afforestation structure in coastal saline and alkaline land normal position - Google Patents

Abstract

The application discloses three-dimensional afforestation structure of coastal saline and alkaline land normal position relates to coastal saline and alkaline land afforestation technical field, including planting the cave, planting the cave internal fixation cover and having at a distance from the salt cover, separate salt cover internal fixation and be equipped with gravel layer, first non-woven fabrics, stone nitre layer, second non-woven fabrics, planting soil layer and fertilizer, separate salt cover inner wall bottom fixed cover and have a plurality of drain pipes of evenly distributed, it is a plurality of the intercommunication has the drainage blind ditch between the bottom port of drain pipe, set up husky small opening in the drain pipe. This application is through separating the salt cover, can block salinity and moisture in the external soil, and the drain pipe can arrange water and salinity in separating the salt cover to the drainage blind drain in, and the kickboard can rise because buoyancy when the water produces the refluence in the drainage blind drain, carries out automatic blocking to the drain pipe, effectively prevents in the drainage blind drain water refluence to planting soil in situ, comes to protect the root system of plant, whole convenient and practical, suitable a large amount of popularization.

Description

Three-dimensional afforestation structure in coastal saline and alkaline land normal position

Technical Field

The application relates to the technical field of coastal saline-alkali soil afforestation, in particular to an in-situ three-dimensional afforestation structure for coastal saline-alkali soil.

Background

The coastal saline-alkali soil is mainly distributed in offshore beaches and river delta and belongs to chloride saline soil. Coastal saline-alkali soil has the characteristics of high salt content, poor physical structure, low soil fertility level, strong movement of seasonal water and salt and the like, and seriously influences the growth of plants and even death of the plants.

Through retrieval, the Chinese patent with the publication number of CN212992962U discloses an in-situ three-dimensional afforestation structure for coastal saline-alkali soil, which comprises a planting hole and a capillary ditch, wherein the planting hole is internally provided with a salt-removing blind ditch, an original soil buffer layer, a saltpeter layer, a planting soil layer, a soil fertility layer and a surface evaporation and salt suppression system from bottom to top in sequence, and a salt-separating film is arranged above the saltpeter layer and around the inner side wall of the planting hole; one end of the salt-removing underdrain is communicated with the hair ditch. The in-situ three-dimensional afforestation structure for the coastal saline-alkali soil realizes the comprehensive regulation and control of saline-alkali soil water, salt, fertilizer and soil in the coastal areas by combining the mode of tree pit micro-domain soil replacement and engineering measures. The compound fertilizer has the characteristics of low cost, simple preparation and convenient application, can effectively reduce the saline-alkali barrier of soil, promotes the fertilization and soil improvement in coastal areas, and provides a good growth environment for plants.

Aiming at the related technologies, the inventor thinks that the structure can indeed discharge water and salt in the planting hole through the salt drainage blind ditch and the blind pipe, but if the water flow in the salt drainage blind ditch and the blind pipe is too large and the planting hole is in a low-lying state, the salt drainage blind ditch and the blind pipe can not discharge water in time, and the excessive water can flow back to the planting soil layer of the plant root along the saltpeter layer, so that the root system of the plant is damaged by soaking, the death of the forestation plant is caused, and the requirements of the prior art can not be met.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that water in the salt drainage blind ditch and the blind pipe can flow backwards to the planting soil layer, the application provides a three-dimensional afforestation structure of coastal saline-alkali soil normal position.

The application provides a three-dimensional afforestation structure in coastal saline and alkaline land normal position adopts following technical scheme:

the utility model provides a three-dimensional afforestation structure of coastal saline and alkaline land normal position, includes kind plant hole, kind plant hole internal fixation cover has separate salt cover, separate salt cover internal fixation and be equipped with gravel layer, first non-woven fabrics, stone saltpeter layer, second non-woven fabrics, planting soil layer and fertilizer, separate the fixed cover in salt cover inner wall bottom and have a plurality of drain pipes of evenly distributed, it is a plurality of the intercommunication has the drainage blind ditch between the bottom port of drain pipe, the husky hourglass groove has been seted up in the drain pipe, husky hourglass inslot inner wall bottom welding has spacing square pole, spacing square pole outer wall sliding sleeve has the kickboard, the activity of kickboard top is at husky hourglass inslot inner wall middle part.

Optionally, the salt separation cover is a corrosion-resistant plastic film, and the floating plate is in a shape of a circular truncated cone.

Optionally, the gravel layer is laid at the bottom of the inner wall of the salt separation cover, the first non-woven fabric is fixedly arranged at the top of the gravel layer, and the gravel layer is composed of coarse sand and broken stones.

Optionally, the nitre layer is laid on the top of the first non-woven fabric, the second non-woven fabric is fixedly arranged on the top of the nitre layer, and the first non-woven fabric and the second non-woven fabric are the same in thickness and size.

Optionally, the planting soil layer is laid on the top of the second non-woven fabric, and the fertilizer is fixedly arranged inside the planting soil layer.

Optionally, a soil cushion layer is laid at the center of the top of the planting soil layer, and the soil cushion layer is in a circular truncated cone shape.

Optionally, a semi-permeable membrane is fixedly arranged at the top of the soil bedding layer, and the top of the salt separation cover is fixedly connected with the bottom of the semi-permeable membrane.

Optionally, the sand leakage groove inner wall top has the filter through bolt fixed mounting, the filter top cooperates the butt with grit layer bottom.

In summary, the present application includes at least one of the following benefits:

1. through separating the salt cover, salinity and moisture can block in the external soil, and the drain pipe can be arranged water and salinity in separating the salt cover to the drainage blind drain in, and the kickboard can rise owing to buoyancy when the drainage blind drain water production refluxes, carries out automatic blocking to the drain pipe, effectively prevents in the drainage blind drain water refluxes to planting soil in situ, comes to protect the root system of plant, whole convenient and practical, suitable a large amount of popularization.

2. Fill up the semi-permeable membrane through filling up the soil layer, can completely cut off subaerial salinity, make hydroenergy normally flow in to planting in the soil layer, and make the salinity can stay at the semi-permeable membrane top, the rainwater can wash away the salinity on the semi-permeable membrane after having filled up, salt cover is separated in the semi-permeable membrane cooperation, can completely cut off external salinity, improve the survival rate of plant, set up the mode of planting the cave and filling planting soil layer in planting the cave through saline and alkaline land, can change the former soil of plant below, form three-dimensional afforestation technique, effectively reduce the required cubic metre of earth of afforestation engineering, reach the purpose of high-efficient management saline and alkaline land.

Drawings

FIG. 1 is a schematic overall structure of the present application;

FIG. 2 is an enlarged view of the structure A of FIG. 1 of the present application;

fig. 3 is an enlarged view of the drain pipe structure of fig. 1 of the present application.

Description of reference numerals: 1. planting holes; 11. a salt isolation cover; 12. a sandstone layer; 13. a first nonwoven fabric; 14. a saltpeter layer; 15. a second nonwoven fabric; 16. planting a soil layer; 17. a fertilizer; 18. a soil bedding layer; 19. a semi-permeable membrane; 2. a drain pipe; 21. a sand drain groove; 22. a limiting square rod; 23. a floating plate; 24. a filter plate; 3. and (5) draining the underdrains.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses three-dimensional afforestation structure in coastal saline and alkaline land normal position, including planting cave 1, refer to fig. 1-3, plant cave 11 and dig in coastal saline and alkaline land, plant cave 1 internal fixation cover and have at a distance from salt cover 11, plant cave 1 can support and spacing at a distance from salt cover 11, separate that salt cover 11 internal fixation is equipped with gravel layer 12, first non-woven fabrics 13, stone saltpeter layer 14, second non-woven fabrics 15, planting soil layer 16 and fertilizer 17, separate that salt cover 11 can wrap up and be connected gravel layer 12, first non-woven fabrics 13, stone saltpeter layer 14, second non-woven fabrics 15, planting soil layer 16 and fertilizer 17.

Referring to fig. 1, the fixed cover in salt separating cover 11 inner wall bottom has a plurality of drain pipes 2 of evenly distributed for salt in the sound-proof cover 11 can enter into drain pipe 2 along with water, and the intercommunication has drainage blind ditch 3 between the bottom port of a plurality of drain pipes 2, and water in the drain pipe 2 can enter into drainage blind ditch 3, and drainage blind ditch 3 can be arranged water and salinity to other regions in.

Referring to fig. 1 and 3, husky hourglass groove 21 has been seted up in drain pipe 2, husky hourglass groove 21 is the hourglass shape, the middle of the wide both ends is thin, the welding of husky hourglass groove 21 inner wall bottom has spacing square pole 22, hourglass groove 21 can support and fix spacing square pole 22, spacing square pole 22 outer wall slip cap has kickboard 23, spacing square pole 22 can carry on spacingly to kickboard 23, make kickboard 23 can only carry out the lift and move, kickboard 23 top activity is in husky hourglass groove 21 inner wall middle part, make the middle part of husky hourglass groove 21 can be stopped up to kickboard 23 under buoyancy, come to block up drain pipe 2.

Referring to fig. 1-2, the salt separation cover 11 is a corrosion-resistant plastic film, the plastic film has the effects of resisting water and separating salt, the floating plate 23 is in a circular truncated cone shape, the gravel layer 12 is laid at the bottom of the inner wall of the salt separation cover 11, the gravel layer 12 is composed of coarse sand and broken stone, the first nonwoven fabric 13 is fixedly arranged at the top of the gravel layer 12, the gravel layer 12 can support the rock layer 14, the rock layer 14 is laid at the top of the first nonwoven fabric 13, the second nonwoven fabric 15 is fixedly arranged at the top of the rock layer 14, the first nonwoven fabric 13 and the second nonwoven fabric 15 can limit the rock layer 14, the rock in the rock layer 14 is prevented from flowing along with water, the rock layer 14 can promote the soil salt in the tree cavity to be washed downwards, the effect of cutting soil capillary is achieved, the salt return of the soil is prevented, and the thickness and the size of the first nonwoven fabric 13 and the second nonwoven fabric 15 are the same.

Referring to fig. 1-2, a planting soil layer 16 is laid on the top of a second non-woven fabric 15, the planting soil layer 16 is made of plant planting soil, a fertilizer 17 is fixedly arranged inside the planting soil layer 16, a waste material 17 can enrich the planting soil layer 16, a bedding soil layer 18 is laid at the center of the top of the planting soil layer 16, the bedding soil layer 18 is in a circular truncated cone shape, a semi-permeable membrane 19 is fixedly arranged on the top of the bedding soil layer 18, the bedding soil layer 18 in the circular truncated cone shape can lift the semi-permeable membrane 19, salt on the semi-permeable membrane 19 can be washed away by rainwater conveniently, accumulation of salt on the semi-permeable membrane 19 is reduced as much as possible, the top of a salt isolation cover 11 is fixedly connected with the bottom of the semi-permeable membrane 19, the salt isolation cover 11 and the semi-permeable membrane 19 can wrap structures of the planting soil layer 16 and the like, and the external water and salt are prevented from entering the planting soil layer 16.

Referring to fig. 1 and 3, there is filter 24 at the top of the inner wall of the sand leaking groove 21 through bolt fixing, the filter 24 can primarily filter the water entering the sand leaking groove 21, the top of the filter 24 is abutted to the bottom of the gravel layer 12, and the filter 24 can support the gravel layer 12.

The implementation principle of the in-situ three-dimensional afforestation structure for the coastal saline-alkali soil of the embodiment of the application is as follows:

during raining, the rainwater can pass through the infiltration of semi-permeable membrane 19, enter into in planting soil layer 16, carry out the moisturizing to the root system of plant, during too much water can pass second non-woven fabrics 15, nitre layer 14, first non-woven fabrics 13 and gravel layer 12 enter into drain pipe 2, nitre layer 14 cooperation rainwater can promote the interior salt of plant roots soil to drip washing downwards this moment, take salt solution can flow into to the drainage blind ditch 3 in through drain pipe 2, and along with the drainage blind ditch 3 arranges to other regions in.

When 3 interior waters of drainage blind ditches produced the refluence, can drive kickboard 23 and rise under the buoyancy effect, under the spacing of spacing square pole 22, the middle part of husky small-eared pit 21 can be plugged up to kickboard 23, comes to block up drain pipe 2, and drain pipe 2 cooperation salt separating cover 11 after the jam can effectively prevent 3 interior waters of drainage blind ditches from flowing backwards to planting soil layer 16 in, comes to protect the root system of plant.

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 (8)

1. The in-situ three-dimensional afforestation structure for the coastal saline-alkali land comprises planting holes (1) and is characterized in that: plant cave (1) internal fixation cover and have separate salt cover (11), separate salt cover (11) internal fixation and be equipped with gravel layer (12), first non-woven fabrics (13), stone saltpeter layer (14), second non-woven fabrics (15), plant soil layer (16) and fertilizer (17), separate salt cover (11) inner wall bottom fixed cover and have a plurality of drain pipes (2) of evenly distributed, it is a plurality of the intercommunication has drainage secret ditch (3) between the bottom port of drain pipe (2), it leaks groove (21) to have seted up husky in drain pipe (2), the welding of husky leak groove (21) inner wall bottom has spacing square pole (22), spacing square pole (22) outer wall sliding sleeve has kickboard (23), kickboard (23) top activity is in husky leak groove (21) inner wall middle part.

2. The in-situ three-dimensional afforestation structure for the coastal saline-alkali soil according to claim 1, characterized in that: the salt isolation cover (11) is a corrosion-resistant plastic film, and the floating plate (23) is in a circular truncated cone shape.

3. The in-situ three-dimensional afforestation structure for the coastal saline-alkali soil according to claim 1, characterized in that: the gravel layer (12) is laid at the bottom of the inner wall of the salt separation cover (11), and the first non-woven cloth (13) is fixedly arranged at the top of the gravel layer (12).

4. The in-situ three-dimensional afforestation structure for the coastal saline-alkali soil according to claim 1, characterized in that: the stone crust layer (14) is laid on the top of the first non-woven fabric (13), the second non-woven fabric (15) is fixedly arranged on the top of the stone crust layer (14), and the first non-woven fabric (13) and the second non-woven fabric (15) are identical in thickness and size.

5. The in-situ three-dimensional afforestation structure for the coastal saline-alkali soil according to claim 1, characterized in that: the planting soil layer (16) is laid on the top of the second non-woven fabric (15), and the fertilizer (17) is fixedly arranged inside the planting soil layer (16).

6. The in-situ three-dimensional afforestation structure for the coastal saline-alkali soil according to claim 1, characterized in that: a soil cushion layer (18) is laid at the center of the top of the planting soil layer (16), and the soil cushion layer (18) is in a circular truncated cone shape.

7. The in-situ three-dimensional afforestation structure for coastal saline-alkali soil according to claim 6, characterized in that: the top of the soil bedding layer (18) is fixedly provided with a semi-permeable membrane (19), and the top of the salt isolation cover (11) is fixedly connected with the bottom of the semi-permeable membrane (19).

8. The coastal saline-alkali soil in-situ three-dimensional afforestation structure according to claim 1, wherein: the sand-screen groove (21) is characterized in that a filter plate (24) is fixedly mounted at the top of the inner wall of the sand-screen groove (21) through bolts, and the top of the filter plate (24) is in fit butt joint with the bottom of the sandstone layer (12).

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