Slope field soil rainwater interception system

Abstract

The utility model discloses a slope field soil rainwater interception system which is characterized by comprising a lower-layer film which is horizontally laid at a position which is 0.5-1.5 meters away from the lower part of the field soil surface, an upper-layer film which is laid above the field soil surface layer, and a lower-layer film which is laid above the upper-layer film, a plurality of sunken positions are arranged on the upper-layer film, water-permeable openings are formed in the sunken positions, and the upper-layer film and the lower-layer film are both waterproof films. The utility model has the characteristics that the rainwater can be better collected, stored and utilized for planting, and is particularly suitable for being applied to plateau sloping fields, especially loess high-slope field soil, so as to improve the farming yield.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of land farming technical field, specifically to a kind of slope field soil rainwater interception system. BACKGROUND

[0002] The highland slope of our country, especially the slope of loess plateau region, due to the high permeability caused by the macropore characteristics of loess, and the transpiration effect of slope position suffering from wind and sun for a long time, is easy to cause drought, vegetation is difficult to survive, and land planting is difficult.I still rely on the actual situation of the old god in most of the loess plateau region of our country.The crops are supplied with timely rainwater during the entire growth cycle in the year of abundant or uniform rainwater, and the farmer will obtain better harvest, if the rainfall is uneven or relatively dry in the year, then the crops in loess plateau region will be difficult to have good harvest.

[0003] In fact, there is a higher annual rainfall in some areas of loess plateau, reaching 400-500mm.Such a lot of rainfall, in stone mountain area or non-loess area, vegetation is lush and crops grow better, but in loess plateau, there is no good scene of mountain and water, more is the reality of ten years nine drought and barren, resulting in farmers even have a large amount of farmland but only low grain output.The reason is that in addition to the difficulty of rainwater retention, a large amount of rainfall is after autumn harvest and before spring planting, so although the annual rainfall is not low, the land is actually drought, which makes it difficult to ensure the harvest.

[0004] CN201810725622.9 has disclosed a kind of rainwater system in dry land, which includes planting soil, the planting soil is evenly arranged with plant, the planting soil is provided with water storage layer, water storage layer is located below plant root system, the planting soil is arranged with rainwater collection device, the rainwater collection device is connected with water storage layer by drainage pipe.The utility model can collect rainwater by setting rainwater collection device to supply water for water storage layer and plant absorption, better meet the water requirement of crops.But there are still defects such as low rainwater collection and utilization efficiency, complex device system structure and high cost.

[0005] Therefore, how to better utilize rainwater for planting according to the characteristics of highland slope field soil has become a problem to be considered and solved by the technical personnel in the field. UTILITY MODEL CONTENT

[0006] In view of the above technical problems of the prior art, the technical problem to be solved by the utility model is to provide a kind of slope field soil rainwater interception system which can better collect and store rainwater for planting, so that it is especially suitable for application in highland slope, especially loess high slope soil.

[0007] In order to solve the above technical problems, the utility model adopts the following technical scheme:

[0008] A kind of slope field soil rainwater interception system, it is characterized in that, including lower film that is horizontally laid in the position of 0.5-1.5 meters depth below field soil surface, lower film periphery has a section of turn-up edge that is turned up, further including upper film that is laid above field soil surface layer, upper film is provided with several recessed positions, opening for water permeation is arranged in recessed position, the upper film and lower film are all water-impermeable film.

[0009] In this way, rainwater can be gathered to the recessed position of upper film and infiltrate after falling, then be intercepted and stored in soil by lower film, while upper film can cut off and hinder water evaporation under sunlight. Therefore, the rainwater interception system is used for highland slope field planting, rainwater can be intercepted after autumn harvest for next year spring planting. Plant can be directly planted in planting position by breaking upper film when spring planting, so that the system can also maintain effect during plant growth cycle, maximumly improves rainwater utilization effect and plant yield.

[0010] Further, the lower film is at a depth of 1 meter below the field soil surface. Too deep can result in high construction cost and difficulty in storing water for plants above to absorb and utilize, and too shallow can result in poor water storage effect and easy damage by shallow layer organisms in the field.

[0011] Further, the turn-up edge is 10-30 cm high. Too low can result in easy overflow of stored water from the edge of the turn-up edge, poor water storage effect, and too high can result in cutting off the integrity of the field and surrounding soil, which is not conducive to the conduction of microorganisms in the soil and can easily cause landslides on the field slope.

[0012] Further, the upper surface and / or lower surface of the lower film is coated with a pest repellent coating.

[0013] In this way, earthworms, mole crickets, and even small animals such as mice can be prevented from biting and damaging the film, prolonging the service life of the lower film.

[0014] Further, the pest repellent coating uses a traditional Chinese medicine coating with pest repellent effect.

[0015] In this way, the pest repellent effect is achieved while being harmless to the planted plants, making it safer. In specific implementation, the traditional Chinese medicine coating with pest repellent effect is prior art and will not be described in detail here.

[0016] Further, a layer of hydrophobic or waterproof material is provided on the outside of the turn-up edge up to the field surface.

[0017] In this way, the water trapped by the lower film can be effectively prevented from flowing out through the folded edge under the action of soil capillary phenomenon, and the water storage and retention effect of the lower film is greatly improved.

[0018] Further, the layer of hydrophobic or waterproof material is a lime-soil waterproof layer.

[0019] The lime-soil is a kind of existing formula material mixed by lime, clay and / or sand, water and other materials, and the lime-soil waterproof layer has excellent waterproof and air permeability, can well prevent water from flowing out, and can well connect the inside and outside of the field soil, maintain air permeability (for the growth requirement of plants), and avoid soil landslide.

[0020] Further, the thickness of the lime-soil waterproof layer is 1-5 cm, preferably about 3 cm.

[0021] Further, the outer side edge of the field soil is further provided with a field ridge obtained by soil compaction, and the upper end of the field ridge is about 10-30 cm higher than the upper surface of the field soil. In this way, the water storage effect of the field soil can be better maintained, and soil landslide can be well prevented.

[0022] Further, the outer side of the field ridge is provided with a slope. The slope can better prevent the slope from collapsing.

[0023] Further, the angle of the slope outside the field ridge is less than 70. The slope can better prevent the slope from collapsing.

[0024] Further, the width of the upper end of the field ridge is greater than 50 cm. The slope can better prevent the slope from collapsing.

[0025] Therefore, the utility model can save the precipitation in the upper part of the cultivated soil (100 cm) in the rainfall season in these regions by adopting a certain engineering technical measure system, maintain a high water content in the surface layer of the terrace soil, reduce the evaporation loss of the surface of the soil, have a good soil condition when sowing in the next spring, support the growth and development of the planted crops, and even if there is no effective rainfall weather and continuous drought, the yield of the crops will not be greatly affected.

[0026] The utility model has the following characteristics: 1, through the waterproof layer setting of the field soil peripheral wall and the horizontal laying of the lower film of the impermeable measure under the certain depth of the surface, the water seeping into the field soil can be preserved in the certain depth (100cm) of the field soil for a long time. 2, the upper film laid on the terrace surface effectively prevents the water preserved in the soil from being lost due to evaporation. 3, during the growth period of crops, the water preserved in the soil during the rainy season is absorbed and utilized by crops, supporting the normal production of crops, even if drought and little rain, the normal growth and development of crops can be met, and a certain yield is ensured. This rainwater preservation and regulation utilization method completely changes the situation that loess slope land agricultural production has no water guarantee.

[0027] In conclusion, the utility model has the characteristics of better rainwater collection, storage and utilization for planting, and is particularly suitable for application in plateau slope land, especially loess high slope field soil, to improve crop yield. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is a structure diagram of the rainwater interception system of the slope land field soil in the embodiment of the utility model. DETAILED DESCRIPTION

[0029] The utility model will be further described in detail in combination with specific embodiments.

[0030] Embodiment: a rainwater interception system of slope land field soil, referring to Figure 1 , including the lower film 1 horizontally laid at the depth position of 0.5-1.5 meters below the field soil surface, the lower film 1 periphery has a section of folding edge 2 folded upward, further including the upper film 3 laid above the field soil surface layer, the upper film 3 is provided with a plurality of recessed positions 4, the recessed position 4 is provided with an opening for water permeation, and the upper film 3 and the lower film 1 are all water-impermeable films. The label 7 in the drawing represents the surface soil.

[0031] In this way, rainwater can be gathered to the recessed position of the upper film and infiltrate downward after falling, and then be intercepted and preserved in the soil by the lower film, and the upper film can cut off and hinder the solar evaporation of water. Therefore, the rainwater interception system is used for planting in plateau slope land field soil, rainwater can be intercepted after autumn harvest for next year's spring planting. The plant can also be planted directly in the planting position by breaking the upper film during spring planting, so that the system can also maintain the same effect during the plant growth period, the utilization effect of rainwater is improved to the maximum, and the plant yield is improved.

[0032] The lower film 1 is 1 meter deep from the surface of the field soil. Too deep will result in high construction cost and difficulty in storing water for the upper plants to absorb and utilize during planting, and too shallow will result in poor water storage effect and easy damage by shallow biological organisms in the field soil.

[0033] The height of the folded edge 2 is 10-30 cm. If the height is too low, the water stored in the lower film 1 will easily flow out through the edge of the folded edge, and the water storage effect is poor. If the height is too high, the integrity of the field soil and the surrounding soil will be cut off, which is not conducive to the conduction of microorganisms in the soil and can easily cause the field soil slope to slide.

[0034] The upper surface and / or the lower surface of the lower film 1 is coated with an insect repellent coating.

[0035] In this way, the earthworms, grubs, mole crickets, wireworms, and even rodents can be prevented from biting and damaging the film, thereby prolonging the service life of the lower film.

[0036] The insect repellent coating is a traditional Chinese medicine coating with insect repellent effect.

[0037] In this way, the insect repellent effect is achieved while being harmless to the plants, making it safer. In specific implementation, known traditional Chinese medicine ingredients with insect repellent effect can be used to prepare a paste according to the existing ointment preparation method to form a traditional Chinese medicine coating.

[0038] A layer of hydrophobic or waterproof material 5 is further provided on the upper surface of the field soil outside the folded edge.

[0039] In this way, the water trapped in the lower film can be effectively prevented from flowing out through the folded edge due to the capillary phenomenon in the soil, greatly improving the water storage and retention effect of the lower film.

[0040] The layer of hydrophobic or waterproof material 5 is a lime soil waterproof layer.

[0041] Lime soil is a kind of existing formula material made of lime, clay, sand, water, and other materials. The lime soil waterproof layer has excellent waterproof and breathable properties, can effectively prevent water from flowing out, and at the same time, can well connect the inside and outside of the field soil, maintain the air permeability for plant growth, and prevent soil landslide.

[0042] The thickness of the lime soil waterproof layer is 1-5 cm. Preferably, it is about 3 cm. If it is too thin, the effect cannot be guaranteed, and if it is too thick, it is not convenient to construct.

[0043] The outer edge of the field soil is further provided with a field ridge 6 obtained by soil compaction, and the upper end of the field ridge 6 is about 10-30 cm higher than the upper surface of the field soil. In this way, the water storage effect of the field soil can be better maintained, and soil landslide can be well prevented.

[0044] The outer side of the field ridge 6 is provided with a slope. This can better prevent the slope from collapsing.

[0045] The slope angle of the outer side of the field ridge 6 is less than 70. This can better prevent the slope from collapsing.

[0046] The upper end of the ridge 6 is greater than 50 cm in width. The collapse of the slope can be better prevented.

[0047] Therefore, the loess plateau terrace cultivation area without any irrigation measures at present can store the rainfall in the upper part of the cultivated soil within a certain depth (100 cm) by using a certain engineering technical measure system, so that the surface layer of the terrace soil maintains a high water content, and measures are also taken to reduce the evaporation loss of the soil surface. When sowing in the spring of next year, there is a good soil condition, so that the planted crops have a good soil water content to support their growth and development. Even if there is no effective rainfall and the weather is dry, the yield of crops will not be greatly affected.

Claims

1. A rainwater interception system for sloping farmland, characterized in that, It includes a lower film laid horizontally at a depth of 0.5-1.5 meters below the surface of the field soil, with a folded edge around the perimeter. It also includes an upper film laid on top of the surface of the field soil, with several recessed positions and openings for water permeability in the recessed positions. Both the upper and lower films are waterproof films.

2. The rainwater interception system for sloping farmland as described in claim 1, characterized in that, The lower film is located 1 meter below the surface of the soil.

3. The rainwater interception system for sloping farmland as described in claim 1, characterized in that, The upward height of the folded edge is 10-30 cm.

4. The rainwater interception system for sloping farmland as described in claim 1, characterized in that, An insect-repellent coating is applied to the upper and / or lower surfaces of the lower film.

5. The rainwater interception system for sloping farmland as described in claim 4, characterized in that, The insect-repellent coating is made of traditional Chinese medicine with insect-repellent effects.

6. The rainwater interception system for sloping farmland as described in claim 1, characterized in that, Around the edge of the field, a layer of hydrophobic or waterproof material is installed on the outer side of the folded edge and upwards to the surface of the field.

7. The rainwater interception system for sloping farmland as described in claim 6, characterized in that, The hydrophobic or waterproof material layer is a lime-soil waterproof layer.

8. The rainwater interception system for sloping farmland as described in claim 7, characterized in that, The thickness of the lime-soil waterproof layer is 1-5cm.

9. The rainwater interception system for sloping farmland as described in claim 1, characterized in that, The outer edge of the field is also equipped with a field ridge made of compacted soil, with the top of the ridge about 10-30cm higher than the surface of the field.

10. The rainwater interception system for sloping farmland as described in claim 9, characterized in that, The outer side of the field ridge is set up as a slope; The angle of the outer slope of the field ridge is less than 70 degrees; The width of the upper part of the ridge is greater than 50cm.

Images