Loess plateau hilly area slope ecological restoration auxiliary device

Abstract

The utility model relates to the technical field of ecological restoration, in particular to a loess plateau hilly area slope ecological restoration auxiliary device which comprises a slope, a water collecting groove is formed in the slope, a plurality of evenly-distributed water storage pits are formed in the side, with the lower gradient, of the water collecting groove, and overflow grooves are formed between the water collecting groove and the water storage pits. The upper end face of the root seedling planting area is provided with a plurality of enclosures, rainwater resources are utilized, the ecological and irrigation problems of the slope of the loess plateau hilly area are well solved, the upper end face of the root seedling planting area is provided with the enclosures, the enclosures are metal filter screens, therefore, redundant runoff water on the slope can be buffered, vegetation is prevented from being scoured, and the slope of the loess plateau hilly area is protected. The fixed fence is inserted into the soil of the slope surface, so that fixation is facilitated, water and soil are effectively kept, the soil is prevented from being scoured by rainfall, the ecological environment is improved, and good economic, ecological and social benefits are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ecological restoration, in particular to an auxiliary device for slope ecological restoration in hilly areas of the Loess Plateau. Background Technique

[0002] In the hilly and gully areas of the Loess Plateau in the northwest of China, the water resources are scarce, and the problems of regional and seasonal drought and water shortage are serious. The average annual rainfall in the hilly and gully areas of the northern Loess Plateau and arid and water-deficient mountainous areas is only 250-600 mm, and more than 60% of it is concentrated in July-September, which is seriously misaligned with the crop water demand period. Due to special climate, geological and soil conditions, both surface and underground water resources in the region are extremely scarce, and the per capita water resources volume is only 200-500 m3, which is the region with the lowest per capita water resources volume in the country. The Loess Plateau belongs to the temperate arid and semi-arid climate zone, with relatively vast land resources and rich light and heat resources. The region has distinct seasons, dry climate, large temperature difference between day and night. Under facility conditions, vegetables and fruits can be produced throughout the year. The fruits are fully mature, the aroma develops completely, the formation of sugars, minerals and pigment substances is good, and the acid content is moderate, creating favorable conditions for the growth and development of vegetables and fruits and sugar accumulation;

[0003] However, due to the extremely uneven spatio-temporal distribution of precipitation in the hilly areas of the northern Loess Plateau, with little rainfall and dry climate, the local economic development is restricted; the surface runoff of rainfall not only leads to drought and water shortage, but also causes serious soil erosion, resulting in the deterioration of the ecological environment. The coexistence of drought and water shortage and soil erosion is an important restrictive factor restricting the sustainable economic and social development of the Loess Plateau region. Therefore, the rainwater harvesting and utilization is particularly important. The large area of gentle slope hilly terrain can be used to build or serve as a natural catchment surface. The height difference of the terrain is conducive to gravity irrigation, and the thick loess creates good in-situ storage conditions. The rainwater harvesting and utilization is an effective way to prevent soil erosion and rainwater resourceization. Content of the Utility Model

[0004] The purpose of the utility model is to provide an auxiliary device for slope ecological restoration in hilly areas of the Loess Plateau, which has the characteristics of utilizing rainwater resources, better solving the ecological and irrigation problems of slopes in hilly areas of the Loess Plateau, effectively maintaining soil and water, avoiding the erosion of soil by rainfall, improving the ecological environment, and having good economic, ecological and social benefits.

[0005] To achieve the above object, the present utility model provides the following technical solution: A slope ecological restoration auxiliary device for hilly areas of the Loess Plateau, including a slope, a water collection trough is provided on the slope, and a plurality of uniformly distributed water storage pits are provided on the side with a lower slope of the water collection trough. An overflow trough is provided between the water collection trough and the plurality of water storage pits. On the side with a lower slope of the plurality of water storage pits, there is a root seedling planting area. A plurality of enclosures are provided on the upper end surface of the root seedling planting area. The bottom of the enclosure is fixedly connected with a fixing bar. A plurality of water guide pipes are communicated between the plurality of water storage pits and the water collection trough and the overflow trough respectively. A plurality of branch water pipes are distributed between the bottoms of the plurality of water storage pits and the root seedling planting area.

[0006] To facilitate rainwater collection, as a preferred embodiment of the slope ecological restoration auxiliary device for hilly areas of the Loess Plateau of the present utility model, concrete layers are provided inside the water collection trough, the overflow trough and the water storage pits.

[0007] To prevent the vegetation root seedlings from being washed away, as a preferred embodiment of the slope ecological restoration auxiliary device for hilly areas of the Loess Plateau of the present utility model, sand and gravel layers are laid on the inner sides of the plurality of enclosures.

[0008] To filter impurities and sediment, as a preferred embodiment of the slope ecological restoration auxiliary device for hilly areas of the Loess Plateau of the present utility model, filter nets are provided at the joints of the water guide pipes and the water collection trough and the overflow trough.

[0009] To slow down the impact force of the water flow, as a preferred embodiment of the slope ecological restoration auxiliary device for hilly areas of the Loess Plateau of the present utility model, the enclosure is a metal filter net.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] When runoff is generated during rainfall, the rainwater flows along the slope, first enters the inside of the water collection trough, and then enters the plurality of water storage pits through a plurality of water guide pipes for storage respectively. When the root seedlings in the root seedling planting area need to be irrigated, under the action of negative pressure and gravity, the rainwater in the water storage pits is transported to the root system layer of the root seedlings through the water guide pipes. By utilizing the rainwater resources, the ecological and irrigation problems of the slopes in the hilly areas of the Loess Plateau are better solved. By setting the overflow trough, when the rainfall is relatively large, the rainwater collected inside the water collection trough overflows into the inside of the overflow trough, and then is introduced into the water storage pits through a plurality of water guide pipes, avoiding rainwater waste and slowing down the scouring of the rainwater on the lower root seedling area. A plurality of enclosures are provided on the upper end surface of the root seedling planting area. The enclosure is a metal filter net, so that the excess runoff water on the slope can be buffered, avoiding scouring the vegetation. The fixing bar is inserted into the soil of the slope, which is convenient for fixing, effectively retaining the water and soil, preventing the rainfall from scouring the soil, and improving the ecological environment, having good economic, ecological and social benefits. Description of the Drawings

[0012] Figure 1 This is the overall sectional structure diagram of the present utility model;

[0013] Figure 2 This is the overall planar structure diagram of the present utility model;

[0014] Figure 3 This is the internal structure diagram of the water collecting tank of the present utility model.

[0015] In the figure: 1, slope; 2, water collecting tank; 3, sump pit; 4, overflow trough; 5, retaining wall; 6, fixed railing; 7, water guide pipe; 8, water distribution pipe; 9, gravel layer; 10, concrete layer. Specific implementation manner

[0016] Please refer to Figures 1 to 3 , an auxiliary device for slope ecological restoration in hilly areas of the Loess Plateau, comprising a slope 1, a water collecting tank 2 is provided on the slope 1, a plurality of uniformly distributed sump pits 3 are provided on the side with a lower slope where the water collecting tank 2 is located, an overflow trough 4 is arranged between the water collecting tank 2 and the plurality of sump pits 3, a root seedling planting area is arranged on the side with a lower slope where the plurality of sump pits 3 are located, a plurality of retaining walls 5 are arranged on the upper end surface of the root seedling planting area, the bottom of the retaining wall 5 is fixedly connected with a fixed railing 6, a water guide pipe 7 is communicated between each of the plurality of sump pits 3 and the water collecting tank 2 and the overflow trough 4, and a plurality of water distribution pipes 8 are distributed between the bottoms of the plurality of sump pits 3 and the root seedling planting area.

[0017] In this embodiment: when rainfall generates runoff, the rainwater flows along the slope 1, first enters the inside of the water collecting tank 2, and then enters the inside of the plurality of sump pits 3 for storage through the plurality of water guide pipes 7 respectively. When the root seedlings in the root seedling planting area need to be irrigated, under the action of negative pressure and gravity, the rainwater in the sump pit 3 is transported to the root system layer of the root seedlings through the water guide pipe 7, utilizing the rainwater resources, and preferably solving the ecological and irrigation problems of the slopes in hilly areas of the Loess Plateau. By providing the overflow trough 4, when the rainfall is relatively large, the rainwater collected inside the water collecting tank 2 overflows into the inside of the overflow trough 4, and then is introduced into the inside of the sump pit 3 through the plurality of water guide pipes 7, avoiding waste of rainwater and slowing down the scouring of the rainwater on the lower root seedling area. A plurality of retaining walls 5 are arranged on the upper end surface of the root seedling planting area, and the retaining wall 5 is a metal filter net, so that the excess runoff water on the slope can be buffered, avoiding scouring of the vegetation. The fixed railing 6 is inserted into the soil of the slope, which is convenient for fixing, effectively retaining the soil and avoiding scouring of the soil by rainfall, improving the ecological environment, and having good economic, ecological and social benefits.

[0018] As a technical optimization scheme of the present utility model, a concrete layer 10 is arranged inside the water collecting tank 2, the overflow trough 4 and the sump pit 3.

[0019] In this embodiment: Concrete layers 10 are provided inside the water collecting tank 2, the overflow tank 4, and the sump pit 3, so as to play a waterproofing role and prevent the collected rainwater from leaking.

[0020] As a technical optimization scheme of the present utility model, gravel layers 9 are laid on the inner sides of multiple enclosures 5.

[0021] In this embodiment: Gravel layers 9 are laid on the inner sides of multiple enclosures 5. The gravel layers 9 can press and cover the soil in the planting area to prevent it from being washed away.

[0022] As a technical optimization scheme of the present utility model, filter nets are provided at the joints of the water guide pipe 7 and the water collecting tank 2 and the overflow tank 4.

[0023] In this embodiment: Filter nets are provided at the joints of the water guide pipe 7 and the water collecting tank 2 and the overflow tank 4, which is convenient for filtering sundries and sediment and preventing the water guide pipe 7 from being blocked.

[0024] As a technical optimization scheme of the present utility model, the enclosure 5 is a metal filter net.

[0025] In this embodiment: The enclosure 5 is a metal filter net, which can buffer the excess runoff water on the slope surface and prevent the vegetation from being washed away.

[0026] Working principle: When rainfall generates runoff, the rainwater flows along the slope surface 1, first enters the inside of the water collecting tank 2, and then enters the interiors of multiple sump pits 3 for storage through multiple water guide pipes 7 respectively. When the root seedlings in the root seedling planting area need to be irrigated, under the action of negative pressure and gravity, the rainwater in the sump pit 3 is transported to the root system layer of the root seedlings through the water guide pipes 7. By utilizing the rainwater resources, the ecological and irrigation problems of the slope surface in the hilly area of the Loess Plateau are better solved. By setting the overflow tank 4, when the rainfall is relatively large, the rainwater collected inside the water collecting tank 2 overflows into the inside of the overflow tank 4, and then is introduced into the inside of the sump pit 3 through multiple water guide pipes 7, avoiding waste of rainwater and slowing down the scouring of the rainwater on the lower root seedling area. Multiple enclosures 5 are arranged on the upper end surface of the root seedling planting area. The enclosure 5 is a metal filter net, which can buffer the excess runoff water on the slope surface and prevent the vegetation from being washed away. The fixing column 6 is inserted into the soil of the slope surface for easy fixation.

[0027] The above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for slope ecological restoration in the hilly area of the Loess Plateau, including a slope (1), characterized in that: A water collecting trough (2) is provided on the slope surface (1). A plurality of uniformly distributed water storage pits (3) are provided on the side with a lower slope where the water collecting trough (2) is located. An overflow trough (4) is provided between the water collecting trough (2) and the plurality of water storage pits (3). A root and seedling planting area is provided on the side with a lower slope where the plurality of water storage pits (3) are located. A plurality of enclosures (5) are provided on the upper end surface of the root and seedling planting area. A fixing bar (6) is fixedly connected to the bottom of the enclosure (5). A water guide pipe (7) is communicated between each of the plurality of water storage pits (3) and the water collecting trough (2) and the overflow trough (4). A plurality of sub-water pipes (8) are distributed between the bottoms of each of the plurality of water storage pits (3) and the root and seedling planting area.

2. The slope ecological restoration auxiliary device in the hilly area of the Loess Plateau according to claim 1, characterized in that: A concrete layer (10) is provided inside each of the water collecting trough (2), the overflow trough (4) and the water storage pits (3).

3. An auxiliary device for slope ecological restoration in the hilly area of the Loess Plateau according to claim 1, characterized in that: A sand and gravel layer (9) is laid on the inner side of each of the plurality of enclosures (5).

4. An auxiliary device for slope ecological restoration in the hilly area of the Loess Plateau according to claim 1, characterized in that: A filter screen is provided at the connection between the water guide pipe (7) and the water collecting trough (2) and the overflow trough (4).

5. An auxiliary device for slope ecological restoration in the hilly area of the Loess Plateau according to claim 1, characterized in that: The enclosure (5) is a metal filter screen.

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