CN212248145U - Ecological drainage system for eroded sloping field - Google Patents

Abstract

The utility model discloses an erosion sloping field ecological drainage system, include the bank underdrain that is used for collecting the rainwater that transversely sets up along the terraced fields's terraced wall bottom, and be used for connecting the ecological grass ditch of drainage of adjacent bank underdrain from top to bottom, when the rainfall is great, the rainwater can collect in the bank underdrain, the terraced fields is flowed down along the ecological grass ditch of drainage of adjacent bank underdrain from top to bottom to the back, reach the drainage purpose, avoid the rainwater to pile up too much, plant in the ecological grass ditch of drainage has the flourishing and resistant bermuda root that floods resistant scouring of root system, plants such as eremochloa ophiuroides, plant roots stretches into the basement, further stabilizes the soil body, reduces the landslide danger.

Description

Ecological drainage system for eroded sloping field

Technical Field

The utility model relates to an ecological environment administers technical field and soil and water conservation field, especially relates to an erosion sloping field ecological drainage system.

Background

Soil erosion causes land deterioration, productivity reduction, and deterioration of ecological environment, which causes serious obstacles to agricultural production. In subtropical and tropical regions in the south of Yangtze river basin in China, due to the combined action of various factors such as climate, biological conditions, geological topography, landform, plants, soil and the like, a red soil erosion area in the south is formed. For years, due to the damage of natural and human factors, red soil areas become one of the areas with the widest water and soil loss range and the highest degree in China, the severity is only next to the loess plateau, the environment is gradually worsened, and the red soil areas are one of the key areas for governing soil erosion and water and soil loss in China.

The existing erosion slope management method is mainly used for planting economic crops after building terraced fields, after new terraced fields are built, plants are difficult to root quickly, rainfall in plum rain season is too much, rainwater accumulation is easy to cause, water and soil loss of erosion slopes is serious, soil quality is unstable, and weather factors such as rainwater accumulation and rainstorm easily cause dangers such as landslide.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide a stabilize the soil body, reduce the dangerous erosion sloping field ecological drainage system of landslide.

In order to achieve the above purpose, the utility model provides a technical scheme is:

an ecological drainage system for an erosion sloping field comprises a subbank ditch transversely arranged along the bottom of a terrace and used for collecting rainwater and an ecological drainage grass ditch used for connecting the subbank ditches, wherein plants such as Bermuda grass, eremochloa ophiuroides and the like with developed root systems and flooding and scouring resistance are planted in the ecological drainage grass ditch.

Preferably, be provided with the purification layer in the ecological grass ditch of drainage, the purification layer include the cobble layer, cover the layer of cloth that permeates water on the cobble layer and be used for planting the soil horizon of plant.

Preferably, the ecological grass ditch for drainage is internally paved with grass planting bricks.

Preferably, still including the desilting pond that is used for reducing the velocity of flow, deposits silt, the desilting pond is including the inner chamber that is used for holding silt, the inner chamber have water inlet and delivery port, the water inlet with the delivery port not on a straight line, just water inlet and delivery port all with the ecological grass ditch of drainage be linked together.

Preferably, the water inlet and the water outlet are both provided with filter screens for intercepting sundries such as branches.

The utility model has the advantages that: the utility model discloses in, when the rainfall was great, the rainwater can collect in the bank ditch down, and the terrace is flowed down along the ecological grass ditch of the drainage of adjacent bank ditch down about the intercommunication after, reaches the drainage purpose, avoids the rainwater too much to pile up, plants in the ecological grass ditch of drainage and has had the flourishing and resistant plant that floods of root system and wash-resistant, and plant roots stretches into the ground end, further stabilizes the soil body, reduces the landslide danger.

Drawings

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

Fig. 1 is a schematic overall structure diagram of the preferred embodiment of the present invention;

figure 2 is a schematic cross-sectional structure of the preferred embodiment of the present invention,

FIG. 3 is a schematic sectional view of the drainage ecological grass ditch according to the preferred embodiment of the present invention,

fig. 4 is a schematic structural view of the desilting basin according to the preferred embodiment of the present invention.

Description of reference numerals:

1. the ecological water-saving and water-saving ecological grass ditch comprises a terrace, 2 steps of a ridge ditch, 3 steps of a drainage ecological grass ditch, 31 steps of a pebble layer, 32 steps of a permeable cloth layer, 33 steps of a soil layer, 34 steps of grass planting bricks, 4 steps of a sand basin, 41 steps of a water outlet and 42 steps of a water inlet.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

Referring to fig. 1, the preferred embodiment of the utility model discloses an erosion sloping field ecological drainage system, include along the transverse bank ditch 2 that is used for collecting the rainwater of seta terrace 1 bottom, and be used for connecting the ecological grass ditch 3 of the adjacent bank ditch 2 about, when the rainfall is great, the rainwater can collect in the bank ditch 2, the back flows down the terraced fields along the ecological grass ditch 3 of the adjacent bank ditch 2 about the intercommunication, reach the drainage purpose, avoid the rainwater to pile up too much, it has the flourishing and resistant plant that floods the resistant scouring of root system to plant in the ecological grass ditch 3 of drainage, plant roots stretches into the underground, further stabilizes the soil body, reduce the landslide danger, in practical application, the flourishing and resistant plant that floods the scouring of root system is preferred to be bermuda grass, eremochloa ophiuroides etc..

As a preferred embodiment of the present invention, it may also have the following additional technical features:

in this embodiment, be provided with the purification layer in the ecological grass ditch of drainage 3, the purification layer includes the pebble layer 31, cover the cloth layer 32 and the soil horizon 33 that is used for planting the plant of permeating water on the pebble layer 31, the runoff gets into in the ecological grass ditch of drainage 3 after, by soil horizon 33 prefiltration, permeate the cloth layer 32 secondary filtration of permeating water, and prevent that the silt of too much soil horizon 33 from flowing into pebble layer 31, at last through flowing pebble layer 31 tertiary filtration, pebble layer 31 is laid by the pebble and forms, the runoff can be held in each pebble gap when the cubic is filterable, reach and hold rainwater and guarantor's water mesh.

In this embodiment, laid grass planting brick 34 in the ecological grass ditch 3 of drainage, improve the ecological grass ditch 3 stability of drainage, in practical application, it is preferred, grass planting brick 34 is laid in soil horizon 33 top, grass planting brick 34 pushes down soil horizon 33, water has buoyancy, the more weather plant roots of rainwater probably drives soil horizon 33 and floats, grass planting brick 34 increases gravity, reduce the possibility that plant roots drives soil horizon 33 come-up, increase planting stability, stability when guaranteeing the ecological grass ditch 3 use of drainage.

In this embodiment, the device further comprises a sand basin 4 for reducing the flow rate and depositing sediment, the sand basin 4 comprises an inner cavity for containing the sediment, the inner cavity has a water inlet 42 and a water outlet 41, the water inlet 42 and the water outlet 41 are not in a straight line, and the water inlet 42 and the water outlet 41 are both communicated with the ecological grass drainage ditch 3, except the main effects of speed reduction and sand sedimentation, rainwater flows into the sand basin 4 through the ecological grass drainage ditch 3, the sediment in the rainwater is deposited in the inner cavity of the sand basin 4 due to gravity, and the rainwater flows into the inner cavity through the water inlet 42 after converging in the ecological grass drainage ditch 3, is collected in the sand basin 4 in a small amount for spraying pesticides or irrigating, because a purification layer is arranged in the ecological grass drainage ditch 3, the water in the sand basin 4 is primarily purified, and can be used for other purposes such as hand washing, and the excessive water flows back to the ecological grass drainage ditch 3 for re-purification through the water outlet 41, the water flow in the sand basin 4 which is arranged below is cleaner, and in practical application, the sand basin 4 can be built according to the terrain.

In this embodiment, water inlet and delivery port all are provided with the filter screen that is used for intercepting debris, prevent that debris are too much unable desilting in the desilting basin 4, and the daily clean maintenance except that desilting in the pond only need clear up water inlet 42 and delivery port 41 outsidely, and daily maintenance is more convenient.

The above additional technical features can be freely combined and used in superposition by those skilled in the art without conflict.

The above is only the preferred embodiment of the present invention, as long as the technical solution of the purpose of the present invention is realized by the substantially same means, all belong to the protection scope of the present invention.

Claims (5)

1. The utility model provides an corrode ecological drainage system in hillside fields which characterized in that: the ecological drainage grass ditch is characterized by comprising a ridge lower ditch which is transversely arranged at the bottom of the terrace wall of the terrace and used for collecting rainwater and a drainage ecological grass ditch which is used for connecting the upper and lower adjacent ridge lower ditches, wherein plants with developed root systems and flooding and scouring resistance are planted in the drainage ecological grass ditch.

2. The ecological drainage system for eroded sloping fields as claimed in claim 1, wherein: the ecological grass ditch of drainage in be provided with and purify the layer, purify the layer including the cobble layer, cover the layer of cloth that permeates water on the cobble layer and be used for planting the soil horizon of plant.

3. The ecological drainage system for eroded sloping fields as claimed in claim 1, wherein: and grass planting bricks are paved in the drainage ecological grass ditches.

4. The ecological drainage system for eroded sloping fields as claimed in claim 1, wherein: still including the desilting pond that is used for reducing the velocity of flow, deposit silt, the desilting pond is including the inner chamber that is used for holding silt, the inner chamber have water inlet and delivery port, the water inlet with the delivery port not on a straight line, just water inlet and delivery port all with the ecological grass ditch of drainage be linked together.

5. The ecological drainage system for eroded sloping fields as claimed in claim 4, wherein: the water inlet and the water outlet are both provided with filter screens for intercepting sundries.

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