CN115262477B - Biochar ecological water bank slope protection system suitable for alternate stress of drought and waterlogging - Google Patents

Biochar ecological water bank slope protection system suitable for alternate stress of drought and waterlogging Download PDF

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Publication number
CN115262477B
CN115262477B CN202210839135.1A CN202210839135A CN115262477B CN 115262477 B CN115262477 B CN 115262477B CN 202210839135 A CN202210839135 A CN 202210839135A CN 115262477 B CN115262477 B CN 115262477B
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water
buoyancy
storage tank
groove
biochar
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CN115262477A (en
Inventor
赵秀芳
谢志远
余国立
唐文艺
李建彬
胡晓龙
娄金秀
周荫庭
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Lingnan Eco and Culture Tourism Co Ltd
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Lingnan Eco and Culture Tourism Co Ltd
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    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02BHYDRAULIC ENGINEERING
    • E02B3/00Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
    • E02B3/04Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
    • E02B3/12Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
    • E02B3/121Devices for applying linings on banks or the water bottom
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/02Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/28Treatment of water, waste water, or sewage by sorption
    • C02F1/283Treatment of water, waste water, or sewage by sorption using coal, charred products, or inorganic mixtures containing them
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/001Runoff or storm water

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Cultivation Of Plants (AREA)
  • Revetment (AREA)

Abstract

A biochar ecological water bank slope protection system suitable for alternate drought and flood stress comprises a power control system and a protection system; the power control system comprises a buoyancy water pipe, a drip irrigation pipe and a water pump, wherein the upper end of the buoyancy water pipe is fixed on the outer side of the water pump, the lower end of the buoyancy water pipe is connected with a buoyancy suction rod, and the water suction pipe penetrates through the whole buoyancy water pipe and the inside of the buoyancy suction rod; the water suction pipe and the drip irrigation pipe are respectively connected with the water pump; the protection system comprises a fixed protection groove, a capsule storage groove, a montmorillonite storage groove and a water storage tank; the fixed protection groove is positioned below the soil layer of the side slope; a water seepage filter screen is inserted into the fixed protection groove, and a capsule storage groove is formed by wrapping the water seepage filter screen; the upper surface of the water storage tank is provided with a water storage tank water permeable hole; the bottom of the water suction pipe is connected with a water suction disc. The invention effectively solves the problem of plant drought and waterlogging stress hazard caused by water level change of the water bank slope, realizes effective prevention and control of runoff pollution diffusion of the water bank slope, and improves the ecological environment quality of the river bank.

Description

Biochar ecological water bank slope protection system suitable for alternate stress of drought and waterlogging
Technical Field
The invention belongs to the technical field of ecological restoration, and particularly relates to a biochar ecological water bank slope protection system suitable for alternate drought and flood stress.
Background
The ecological slope protection is a restoration measure for bare slopes after combining part of knowledge of engineering mechanics, soil science, ecology, plant science and other subjects, and is a comprehensive system restoration technology consisting of engineering and plants, and the slope surface layer is protected and reinforced through the interaction (root anchoring effect) of plant roots and rock soil, so that the slope protection capability of the traditional slope protection engineering is provided, the landscapes of the slopes are ensured, the effect is obvious, and the ecological slope protection technology is one of the most common modes of current slope ecological restoration. However, in the current ecological slope protection construction process, the problems of insufficient stability, low survival rate, poor landscape effect, high management and maintenance cost and the like of the slope plant community are difficult to effectively solve due to multiple complex influence factors such as heavy metal pollution, alternate drought and flood stress, hydraulic erosion and the like.
Biochar is a porous material rich in carbon, which is defined internationally as "solid material obtained by thermochemical conversion of biomass under oxygen-limited conditions". Compared with the traditional soil conditioner, the biochar serving as a novel carbon-based conditioner can not only reduce the bioavailability of heavy metals in soil, but also promote plant growth to a certain extent, and has the potential of repairing heavy metal polluted soil. However, research shows that the unreasonable application of the biochar can cause the increase of the total porosity of soil, promote the generation of runoff, obviously increase the total loss of soil and the erosion among fine furrows, and under the conditions of heavy rainfall, steep slope and the like, the application of the biochar can cause the erosion of soil, thereby aggravating the risk of water and soil loss. The application of the biochar is easy to introduce potential pollutants such as Polycyclic Aromatic Hydrocarbons (PAHs), and related researches show that the application of the biochar can inhibit the initial growth of plants, the concentration of runoff pollutants in the early rainfall stage is high, and the problem of inhibiting the initial growth of pioneer plants under the multiple stress actions of the biochar polycyclic aromatic hydrocarbons and the runoff pollutants is not effectively solved.
Disclosure of Invention
In view of the above, the invention aims to provide a biochar ecological water bank slope protection system suitable for alternate drought and waterlogging stress and a construction method thereof, so as to overcome the defects in the prior art.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a biochar ecological water bank slope protection system suitable for alternate drought and flood stress comprises a power control system and a protection system;
the power control system comprises a buoyancy water pipe, a drip irrigation pipe and a water pump, wherein the upper end of the buoyancy water pipe is fixed on the outer side of the water pump, the lower end of the buoyancy water pipe is connected with a buoyancy suction rod, and the water suction pipe penetrates through the whole buoyancy water pipe and the inside of the buoyancy suction rod; the water suction pipe and the drip irrigation pipe are respectively connected with the water pump;
the protection system comprises a fixed protection groove, a capsule storage groove, a montmorillonite storage groove and a water storage tank; the fixed protection groove is positioned below the soil layer of the side slope and is of a hollow structure; a water seepage filter screen is inserted into the fixed protection groove, and a capsule storage groove is formed by wrapping the water seepage filter screen; the capsule storage tank is internally provided with a biochar fertilizer slow-release capsule; the montmorillonite storage tank is arranged on the inner side wall of the capsule storage tank;
the biochar fertilizer slow-release capsule can be gradually dissolved after moisture absorption, and the biochar loaded in the biochar fertilizer slow-release capsule is prepared by firing garden wastes and is modified by nutritional ingredients. The biochar is selected from biochar which meets the plant planting requirement and can be purchased in the market.
The upper surface of the water storage tank is provided with water storage tank water permeable holes, the inside of the water storage tank is of a hollow structure, and a biochar filter plate is arranged; the bottom of the water suction pipe is connected with a water suction disc.
Further, the capsule storage tank is divided by a plurality of storage tank slow release membranes to form a plurality of independent closed spaces, and the storage tank slow release membranes can be gradually dissolved after moisture absorption to release the upper layer biochar fertilizer slow release capsules; the bottom of the side surface of the fixed protection groove is provided with a plurality of protection groove water inlets which are on the same horizontal line; and the water inlet hole of the protection groove is lower than the slow-release diaphragm of the storage groove at the bottommost part; the lowest layer of capsule storage tank is not provided with a montmorillonite storage tank; the montmorillonite storage tank is internally provided with montmorillonite powder with the volume of 1/3 and ventilation holes of the montmorillonite storage tank.
Furthermore, the top of the fixed protection groove is respectively provided with a signal receiver, a solar panel, a storage battery, a water pump and a protection groove cover plate from top to bottom, and the devices have waterproof functions; the top of the fixed protection groove is slidably connected with the structure above the protection groove cover plate through the protection groove cover plate moving rail, and the protection groove cover plate slides along the protection groove cover plate moving rail to realize the opening and closing of the capsule storage groove; the top of the solar panel is provided with a storage tank lifting handle which can extract the whole water seepage filter screen and the capsule storage tank; the embedded height of the fixed protection groove is 5-10cm above the flood water level for 50 years.
Further, the buoyancy inserting rod is concave in the longitudinal direction, the bottom water absorbing disc is of a complete disc structure, and the bottom water absorbing disc can absorb water in the water storage tank; the buoyancy is taken out and is inserted the pole and can be followed the buoyancy that inlays in the storage water tank and take out the fixed sleeve of inserting pole and reciprocate, and buoyancy is taken out and is inserted pole fixed sleeve top and is equipped with the vertical position fixed buckle of buoyancy raceway, and the vertical position fixed buckle of buoyancy raceway is interior protruding structure, ensures that buoyancy is taken out and is inserted the pole and is lifted to the highest position after, and the bottom can receive the buoyancy raceway vertical position fixed buckle fixed, avoids breaking away from buoyancy and takes out the fixed sleeve of inserting pole.
Furthermore, the fixed protection groove is positioned below the soil layer of the bank slope, and a protection groove protection grid is arranged outside the uphill position, so that the damage of the runoff flushing, the pollutant erosion and the gravel rolling to the upper structure of the fixed protection groove can be prevented; the water storage tank is buried under the soil body of the side slope and is positioned at the downhill position of the fixed protection groove.
Further, a water storage tank water permeable hole which covers the water storage tank water permeable hole filter screen is formed in the top of the water storage tank; the inside of the water storage tank is provided with a biochar filter plate, when the river water level is over or rainfall runoff flows through the water permeable holes of the water storage tank, the water source can be stored, and the water permeable hole filter screen of the water storage tank and the biochar filter plate can realize double filtration of the water source; the drip irrigation pipe is connected with the water pump, the drip irrigation pipe extends downwards and is connected with the transverse buoyancy fixing strip step by step, the end of the drip irrigation pipe is connected with the transverse drip irrigation strip, and the drip irrigation pipe and the transverse drip irrigation strip are respectively provided with drip irrigation holes and drip irrigation strip water permeable holes.
Further, the upper parts of the water storage tank and the fixed protection groove are respectively connected with a lateral buoyancy fixing strip, the lateral buoyancy fixing strip surrounds a plant planting area, the plant planting area is positioned above a slope surface soil layer, the lateral buoyancy fixing strip is of a hollow structure, and lateral buoyancy fixing strip ventilation holes are formed in the lateral surfaces of the lateral buoyancy fixing strip; the lateral buoyancy fixing strips are made of flexible materials, and can be fixed to be corresponding to streamline shapes according to the shape of the slope.
Further, the lateral buoyancy fixing strip is transversely connected with the lateral buoyancy fixing strip, the bottom of the connecting position is provided with a plug rod, the lateral buoyancy fixing strip is of a hollow structure, the plug rod is longitudinally concave and embedded in a plug rod fixing sleeve, the plug rod fixing sleeve is of a hollow structure, the top of the plug rod fixing sleeve is provided with a position fixing buckle, the position fixing buckle is of an inward convex shape, and the bottom of the plug rod is provided with a cake-shaped protection plug; the inserting rod can move up and down along the inside of the inserting rod fixing sleeve, and the highest position can be fixed on the position fixing buckle; the bottom of the fixed sleeve of the inserting rod is provided with a sleeve fixing cone, and the fixed sleeve of the inserting rod is buried under the soil of the side slope.
Further, a shrub buoyancy planting cylinder is arranged in the area surrounded by the lateral buoyancy fixing strip; the shrub buoyancy planting cylinder is fixed on the transverse buoyancy fixing strip and the drip irrigation pipe, the side wall of the shrub buoyancy planting cylinder is of a hollow structure, the bottom of the shrub buoyancy planting cylinder is provided with a shrub planting bottom net, and shallow root system shrubs can be planted; a planting cover net is arranged at the bottom of an area surrounded by the lateral buoyancy fixing strips and the transverse drip irrigation strips, which is close to the water storage tank, and herbaceous plants are planted. When the river water level is high, the lateral buoyancy fixing strips, the buoyancy water conveying pipe, the transverse buoyancy fixing strips, the shrub buoyancy planting cylinders and the like float on the surface of the water body under the buoyancy action, so that plants are prevented from being submerged under the river; when the water level drops below the water permeable hole of the water storage tank, the plant is restored to be close to the side slope.
The invention also provides a method for constructing the biochar ecological water bank slope protection system suitable for drought and waterlogging alternate stress, which comprises the steps of firstly cutting two transverse grooves with a certain depth along a side slope, ensuring that the height of the top of the groove at an ascending position is higher than the water level of flood for 50 years, arranging the top of the groove at a descending position to be 5-10cm above a normal water level, burying a fixed protection groove in the transverse groove at the ascending position, burying a water storage tank in the transverse groove at the descending position, and then filling and compacting; hammering into sleeve fixed cone to make lateral buoyancy fixed strip, shrub buoyancy planting cylinder and planting cover net respectively spread along slope surface to form streamline form for reducing runoff flow rate; shallow root system shrubs are planted in the shrub buoyancy planting cylinder, and herbaceous plants are planted at the gaps of the shrub buoyancy planting cylinder and the planting sleeve net.
The flood water level and the constant water level are confirmed in 50 years according to the data published by the hydrologic bureau of the construction local.
When the river water level is in the water-rich period, the river water level is over the water-permeable hole of the water storage tank, and the water storage tank stores water sources; when the system is in a dry period, a system switch and a water pumping control button are turned on, a water source is sucked into an uphill water pump through a water sucking disc and a water sucking pipe, a drip irrigation control button is regulated and controlled, the flow speed is controlled, and irrigation of shrubs and herbaceous plants is carried out; in the dry period, irrigation is carried out at intervals of 2-3 days initially, irrigation is carried out at intervals of 4-5 days after one month, and drought stress is carried out, so that the drought tolerance of the plants is improved.
After the biochar in the fixed protection groove is used for a period of time, when the biochar needs to be replaced, the storage groove lifting handle is transversely moved, the capsule storage groove is opened, the water seepage filter screen is lifted, the inner structure is taken out, and the water seepage filter screen, the biochar fertilizer slow-release capsule and the montmorillonite powder are replaced.
In addition, the biochar is selected from biochar meeting plant planting requirements and being purchased in the market. The electrical appliances related to the invention are all conventional electrical appliances, and the connection mode is also conventional connection, so long as the control mode of the invention can be realized, the invention constructs a slope protection system, and innovation such as electric control is not related.
Compared with the prior art, the biochar ecological water bank slope protection system and the construction method suitable for alternate drought and flood stress have the following advantages:
(1) According to the invention, by constructing plant communities of shallow root shrubs and herbaceous plants, the erosion of rainfall on a water bank side slope is effectively relieved, and water and soil loss is prevented;
(2) The invention effectively solves the problem of plant drought and waterlogging stress hazard caused by water level change of the water bank side slope, when the water level of the river bank is raised, the slope protection system can float on the surface of the water body to prevent plants from being submerged by the river water, when the water level of the river bank is lowered, the slope protection system returns to the original position to cover the exposed side slope, thereby greatly improving the survival rate of the plants;
(3) The invention fully utilizes in-situ water resources to irrigate and supply water, and can utilize pre-stored water resources in a high water period to carry out accurate drip irrigation in a long-term low water level or drought period, thereby greatly reducing maintenance management difficulty;
(4) The biochar filtering and slow-release functions of the invention can effectively purify runoff pollutants and irrigation water, realize effective prevention and control of the runoff pollution diffusion of the water bank side slope and improve the ecological environment quality of the river bank.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a control system according to an embodiment of the present invention;
reference numerals illustrate:
1 system controller, 2 system switch, 3 signal transmitter, 4 water pumping control button, 5 drip irrigation control button, 6 storage tank lifting handle, 7 solar panel, 8 buoyancy water pipe socket, 9 battery, 10 buoyancy water pipe, 11 drip irrigation pipe, 12 water pump, 13 signal receiver, 14 protection tank cover plate moving track, 15 protection tank cover plate, 16 protection tank protection grid, 17 montmorillonite storage tank, 18 montmorillonite powder, 19 montmorillonite storage tank air holes, 20 storage tank support rod, 21 storage tank slow release membrane, 22 biochar fertilizer slow release capsule, 23 capsule storage tank, 24 water seepage filter screen, 25 protection tank water inlet hole 26 lateral buoyancy fixing strip ventilation holes, 27 fixing protection grooves, 28 inserting rods, 29 position fixing buckles, 30 inserting rod fixing sleeves, 31 protecting plugs, 32 sleeve fixing cones, 33 drip irrigation holes, 34 lateral buoyancy fixing strips, 35 shrub buoyancy planting cylinders, 36 shrub planting bottom nets, 37 lateral buoyancy fixing strips, 38 drip irrigation strip water permeable holes, 39 lateral drip irrigation strips, 40 planting cover nets, 41 water storage tanks, 42 water suction pipes, 43 buoyancy water pipe vertical position fixing buckles, 44 buoyancy inserting rod fixing sleeves, 45 buoyancy inserting rods, 46 water storage tank water permeable hole filter screens, 47 water storage tank water permeable holes, 48 water suction plates and 49 biological carbon filter plates.
Detailed Description
Unless defined otherwise, technical terms used in the following examples have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention pertains. The test reagents used in the following examples, unless otherwise specified, are all conventional biochemical reagents; the experimental methods are conventional methods unless otherwise specified.
The present invention will be described in detail with reference to examples.
A biochar ecological water bank slope protection system suitable for alternate drought and flood stress and a construction method thereof comprise a power control system and a protection system;
the power control system includes: the system comprises a system controller 1, a system switch 2, a signal emitter 3, a pumping control button 4, a drip irrigation control button 5, a storage tank lifting handle 6, a solar panel 7, a buoyancy water pipe socket 8, a storage battery 9, a buoyancy water pipe 10, a drip irrigation pipe 11, a water pump 12 and a signal receiver 13;
the protection system comprises: the protective slot cover plate moving track 14, the protective slot cover plate 15, the protective slot protective grid 16, the montmorillonite storage tank 17, the montmorillonite powder 18, the montmorillonite storage tank ventilation holes 19, the storage tank support rod 20, the storage tank slow release diaphragm 21, the biochar fertilizer slow release capsule 22, the capsule storage tank 23, the water seepage filter screen 24, the protective slot water inlet hole 25, the lateral buoyancy fixing strip ventilation holes 26, the fixed protective slot 27, the pull-in rod 28, the position fixing buckle 29, the pull-in rod fixing sleeve 30, the protective plug 31, the sleeve fixing cone 32, the drip irrigation hole 33, the lateral buoyancy fixing strip 34, the shrub buoyancy planting cylinder 35, the shrub planting bottom net 36, the lateral buoyancy fixing strip 37, the drip irrigation strip water penetration hole 38, the lateral buoyancy strip 39, the planting sleeve net 40, the water storage tank 41, the water absorption pipe 42, the buoyancy water pipe vertical position fixing buckle 43, the buoyancy pull-in sleeve fixing sleeve 44, the buoyancy pull-in rod 45, the water penetration hole filter screen 46, the water storage tank water penetration hole 47, the water absorption disc 48 and the biochar 49;
the whole structure of the fixed protection groove 27 is positioned below the soil layer of the bank slope, and the protection groove protection grid 16 is arranged outside the upward slope position, so that the damage of the rain runoff flushing, pollutant erosion and gravel rolling to the upper structure of the fixed protection groove 27 can be prevented;
the capsule storage tank 23 is divided by a plurality of storage tank slow release membranes 21 to form a plurality of independent closed spaces, and the storage tank slow release membranes 21 can be gradually dissolved after moisture absorption to release the upper layer biochar fertilizer slow release capsules 22; the bottom of the side surface of the fixed protection groove 27 is provided with a plurality of protection groove water inlets 25, and the protection groove water inlets 25 are on the same horizontal line; and the protective groove water inlet 25 is lower than the bottom-most storage groove slow release membrane 21; the lowermost capsule storage tank 23 is not provided with the montmorillonite storage tank 17; the montmorillonite storage tank 17 internally holds montmorillonite powder 18 of which the volume is 1/3, and is provided with a montmorillonite storage tank ventilation hole 19.
The top of the fixed protection groove 27 is respectively provided with a signal receiver 13, a solar panel 7, a storage battery 9, a water pump 12 and a protection groove cover plate 15 from top to bottom, and the fixed protection groove has a waterproof function; the top of the fixed protection groove 27 is slidably connected with the protection groove cover plate 15 through the protection groove cover plate moving rail 14, and the protection groove cover plate 15 slides along the protection groove cover plate moving rail 14 to realize the opening and closing of the capsule storage groove 23; the top of the solar panel 7 is provided with a storage tank lifting handle 6 which can extract the whole water seepage filter screen 24 and the capsule storage tank 23; the embedded height of the fixed protection groove 27 is 5 cm to 10cm above the flood water level of 50 years;
the upper end of the buoyancy water pipe 10 is connected with the outer side of the water pump 12, the lower end is connected with the buoyancy inserting rod 45, and the inner water suction pipe 42 penetrates through the whole buoyancy water pipe 10 and the buoyancy inserting rod 45; the buoyancy inserting rod 45 is longitudinally concave, the bottom water absorbing disc 48 is of a complete disc structure, and the bottom water absorbing disc 48 can absorb water in the water storage tank; the buoyancy inserting rod 45 can move up and down along the buoyancy inserting rod fixing sleeve 44 embedded in the water storage tank 41, the top of the buoyancy inserting rod fixing sleeve 44 is provided with a buoyancy water pipe vertical position fixing buckle 43, the buoyancy water pipe vertical position fixing buckle 43 is of an inward convex structure, and after the buoyancy inserting rod 45 is lifted to the highest position, the bottom can be fixed by the buoyancy water pipe vertical position fixing buckle 43, so that the buoyancy inserting rod is prevented from being separated from the buoyancy inserting rod fixing sleeve 44;
the water storage tank 41 is fully embedded under the soil body of the side slope and is positioned at the downhill position of the fixed protection groove 27, and a water storage tank water permeable hole 47 covering a water storage tank water permeable hole filter screen 46 is arranged at the top of the water storage tank 41; the inside of the water storage tank 41 is provided with a biochar filter plate 49, when the river water level is over or rainfall runoff flows through the water storage tank water permeable holes 47, the water storage tank water permeable holes filter screen 46 and the biochar filter plate 49 can realize double filtration of the water source; the drip irrigation pipe 11 is connected with the water pump 12, the drip irrigation pipe 11 extends downwards and is connected with the transverse buoyancy fixing strip 34 step by step, the tail end of the drip irrigation pipe is connected with the transverse drip irrigation strip 39, and the drip irrigation pipe 11 and the transverse drip irrigation strip 39 are respectively provided with drip irrigation holes 33 and drip irrigation strip water permeable holes 38;
the plant planting area is surrounded by a lateral buoyancy fixing strip 37, the lateral buoyancy fixing strip 37 is respectively connected with the water storage tank 41 and the upper part of the fixed protection groove 27 and is positioned above the slope surface soil layer, the lateral buoyancy fixing strip 37 is of a hollow structure, and lateral buoyancy fixing strip ventilation holes 26 are formed in the lateral surfaces of the lateral buoyancy fixing strip; the lateral buoyancy fixing strips 37 are made of flexible materials, and can be fixed in a corresponding streamline shape according to the shape of the slope; the lateral buoyancy fixing strip 37 is transversely connected with the lateral buoyancy fixing strip 34, the bottom of the connecting position is provided with a plug-in rod 28, the lateral buoyancy fixing strip 34 is of a hollow structure, the plug-in rod 28 is longitudinally concave and is embedded in the plug-in rod fixing sleeve 30, the plug-in rod fixing sleeve 30 is of a hollow structure, the top of the plug-in rod fixing sleeve is provided with a position fixing buckle 29, the position fixing buckle 29 is of an inward convex shape, and the bottom of the plug-in rod 28 is provided with a cake-shaped protection plug 31; the pull-out rod 28 can move up and down along the interior of the pull-out rod fixing sleeve 30, and the highest position can be fixed on the position fixing buckle 29; the bottom of the inserting rod fixing sleeve 30 is provided with a sleeve fixing cone 32, and the inserting rod fixing sleeve 30 is fully buried under the soil of the side slope;
the shrub buoyancy planting cylinder 35 is positioned in the area surrounded by the lateral buoyancy fixing strips 37 and is fixed on the lateral buoyancy fixing strips 34 and the drip irrigation pipe 11, the side wall of the shrub buoyancy planting cylinder 35 is of a hollow structure, and the bottom of the shrub buoyancy planting cylinder is provided with a shrub planting bottom net 36 for planting shrubs with shallow root systems; a planting sleeve net 40 is arranged at the bottom of the area surrounded by the bottom lateral buoyancy fixing strip 37 and the lateral drip irrigation strip 39, so that herbaceous plants can be planted; when the river water level is high, the lateral buoyancy fixing strips 37, the buoyancy water pipe 10, the transverse buoyancy fixing strips 34, the shrub buoyancy planting cylinders 35 and the like float on the surface of the water body under the buoyancy action, so that plants are prevented from being submerged under the river; when the water level drops below the water permeable hole 47 of the water storage tank, the plant is restored to be close to the side slope;
the implementation process of the invention is as follows:
the implementation site of the invention is an ecological environment comprehensive treatment project accepted by the company, the project area is in the south China area, the annual rainfall is abundant, the soil and the river in the project area are polluted by nitrogen and phosphorus, the bank side slope is exposed and has poor stability, the water level change is large, and a stable side slope ecological system with good landscape effect needs to be constructed.
Firstly, two transverse grooves with a certain depth are firstly cut along a side slope, the height of the top of the groove at the position of an ascending slope is ensured to be higher than the water level of flood for 50 years, the top of the groove at the position of a descending slope is positioned 5 cm to 10cm above the normal water level, structures such as a fixed protection groove 27, a water seepage filter screen 24 and the like are buried in the transverse groove at the position of the ascending slope, a water storage tank 41 is buried in the transverse groove at the position of the descending slope, and then soil is filled and compacted; hammering into the sleeve fixing cone 32 to enable the lateral buoyancy fixing strips 37, the shrub buoyancy planting cylinders 35, the planting sleeve net 36 and the like to be flatly paved along the slope surface to be in a streamline shape; planting shallow root system shrubs in the shrub buoyancy planting cylinder, and planting herbaceous plants in gaps of the shrub buoyancy planting cylinder and at the planting sleeve net;
in the water-rich period of 6-9 months, the river water level is over the water-permeable hole 47 of the water storage tank, and the water storage tank 41 stores water sources; in the 12-2 month withered period, the system switch 2 and the water pumping control button 4 are turned on, a water source is sucked into an uphill water pump through the water sucking disc 48 and the water sucking pipe 42, the drip irrigation control button 5 is regulated, the flow rate is controlled, and irrigation of shrubs and herbaceous plants is carried out; in the dead water period, irrigation is carried out at intervals of 2 days initially, and irrigation is carried out at intervals of 4 days after one month;
after the biochar in the fixed protection tank is used for a period of time, when the biochar needs to be replaced, the storage tank lifting handle 6 is transversely moved, the capsule storage tank 23 is opened, the water seepage filter screen 24 is lifted, the internal structure is taken out, and the water seepage filter screen 24, the biochar fertilizer slow-release capsule 22 and the montmorillonite powder 18 are replaced.
By constructing the ecological water bank protection system, the ecological environment quality of a project area is greatly improved, a plant community is quickly recovered, the diffusion of runoff pollutants is effectively controlled, the slope stability is stronger, the plant stress resistance is obviously enhanced, the survival rate reaches more than 90%, and the social benefit, the ecological benefit and the economic benefit are obvious.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.

Claims (8)

1. Biochar ecological water bank slope protection system suitable for drought and waterlogging is stressed in turn, its characterized in that: comprises a power control system and a protection system;
the power control system comprises a buoyancy water pipe (10), a drip irrigation pipe (11) and a water pump (12), wherein the upper end of the buoyancy water pipe (10) is fixed on the outer side of the water pump (12), the lower end of the buoyancy water pipe is connected with a buoyancy inserting rod (45), and a water suction pipe (42) penetrates through the whole buoyancy water pipe (10) and the inside of the buoyancy inserting rod (45); the water suction pipe (42) and the drip irrigation pipe (11) are respectively connected with the water pump (12);
the protection system comprises a fixed protection groove (27), a capsule storage groove (23), a montmorillonite storage groove (17) and a water storage tank (41); the fixed protection groove (27) is positioned below the side slope soil layer and is of a hollow structure; a water seepage filter screen (24) is inserted into the fixed protection groove (27), and the water seepage filter screen (24) is internally wrapped to form a capsule storage groove (23); the capsule storage tank (23) is internally provided with a biochar fertilizer slow-release capsule (22); the montmorillonite storage tank (17) is arranged on the inner side wall of the capsule storage tank (23);
the upper surface of the water storage tank (41) is provided with a water storage tank water permeable hole (47), the inside of the water storage tank is of a hollow structure, and a biochar filter plate (49) is arranged; the bottom of the water suction pipe (42) is connected with a water suction disc (48);
the buoyancy inserting rod (45) is longitudinally concave, the water absorbing disc (48) at the bottom is of a disc structure, and the water absorbing disc (48) can absorb water in the water storage tank (41); the buoyancy inserting rod (45) can move up and down along a buoyancy inserting rod fixing sleeve (44) embedded in the water storage tank (41), a buoyancy water pipe vertical position fixing buckle (43) is arranged at the top of the buoyancy inserting rod fixing sleeve (44), the buoyancy water pipe vertical position fixing buckle (43) is of an inward convex structure, and after the buoyancy inserting rod (45) is lifted to the highest position, the bottom can be fixed by the buoyancy water pipe vertical position fixing buckle (43) to avoid separation from the buoyancy inserting rod fixing sleeve (44);
the upper parts of the water storage tank (41) and the fixed protection groove (27) are respectively connected with a lateral buoyancy fixing strip (37), the lateral buoyancy fixing strip (37) surrounds a plant planting area, the plant planting area is positioned above a slope surface soil layer, the lateral buoyancy fixing strip (37) is of a hollow structure, and lateral buoyancy fixing strip ventilation holes (26) are formed in the lateral surfaces of the lateral buoyancy fixing strip ventilation holes; the lateral buoyancy fixing strips (37) are made of flexible materials, and can be fixed in a corresponding streamline shape according to the shape of the slope.
2. The biochar ecological water bank slope protection system suitable for alternate drought and flood stress according to claim 1, wherein: the capsule storage tank (23) is divided by a plurality of storage tank slow release membranes (21) to form a plurality of independent closed spaces; the bottom of the side surface of the fixed protection groove (27) is provided with a plurality of protection groove water inlets (25), and the protection groove water inlets (25) are on the same horizontal line; and the water inlet hole (25) of the protection groove is lower than the slow-release diaphragm (21) of the storage groove at the bottommost part; the bottommost capsule storage tank (23) is not provided with a montmorillonite storage tank (17); the montmorillonite storage tank (17) is internally provided with montmorillonite powder with the volume of 1/3 and is provided with a ventilation hole (19) of the montmorillonite storage tank.
3. The biochar ecological water bank slope protection system suitable for alternate drought and flood stress according to claim 1, wherein: the top of the fixed protection groove (27) is respectively provided with a signal receiver (13), a solar panel (7), a storage battery (9), a water pump (12) and a protection groove cover plate (15) from top to bottom, and the devices have waterproof functions; the top of the fixed protection groove (27) is slidably connected with the protection groove cover plate (15) through the protection groove cover plate moving rail (14), and the protection groove cover plate (15) slides along the protection groove cover plate moving rail (14) to realize the opening and closing of the capsule storage groove (23); the top of the solar panel (7) is provided with a storage tank lifting handle (6).
4. The biochar ecological water bank slope protection system suitable for alternate drought and flood stress according to claim 1, wherein: the fixed protection groove (27) is positioned below the soil layer of the bank slope, and a protection groove protection grid (16) is arranged outside the uphill position; the water storage tank (41) is buried under the soil body of the side slope and is positioned at the downhill position of the fixed protection groove (27).
5. The biochar ecological water bank slope protection system suitable for alternate drought and flood stress according to claim 1, wherein: a water storage tank water permeable hole (47) covering a water storage tank water permeable hole filter screen (46) is arranged at the top of the water storage tank (41); a biochar filter plate (49) is arranged in the water storage tank (41); drip irrigation pipe (11) downwardly extending links to each other with horizontal buoyancy fixed strip (34) step by step, and end-to-end connection is horizontal to drip irrigation strip (39), drip irrigation hole (33) are equipped with respectively on drip irrigation pipe (11), the horizontal drip irrigation strip (39), drip irrigation strip hole (38) that permeates water.
6. The biochar ecological water bank slope protection system suitable for alternate drought and flood stress according to claim 1, wherein: the lateral buoyancy fixing strip (37) is transversely connected with the lateral buoyancy fixing strip (34), and the bottom of the connecting position is provided with a drawing and inserting rod (28); the transverse buoyancy fixing strip (34) is of a hollow structure, the inserting rod (28) is longitudinally concave and embedded in the inserting rod fixing sleeve (30), the inserting rod fixing sleeve (30) is of a hollow structure, the top of the inserting rod fixing sleeve is provided with a position fixing buckle (29), the position fixing buckle (29) is of an inward convex shape, and the bottom of the inserting rod (28) is provided with a cake-shaped protection plug (31); the inserting rod (28) can move up and down along the inside of the inserting rod fixing sleeve (30), and the highest position can be fixed on the position fixing buckle (29); the bottom of the inserting rod fixing sleeve (30) is provided with a sleeve fixing cone (32), and the inserting rod fixing sleeve (30) is buried under the soil of the side slope.
7. The biochar ecological water bank slope protection system suitable for alternate drought and flood stress according to claim 1, wherein: the area surrounded by the lateral buoyancy fixing strip (37) is provided with a shrub buoyancy planting cylinder (35); the shrub buoyancy planting cylinder (35) is fixed on the transverse buoyancy fixing strip (34) and the drip irrigation pipe (11), the side wall of the shrub buoyancy planting cylinder (35) is of a hollow structure, and the bottom of the shrub buoyancy planting cylinder is provided with a shrub planting bottom net (36); a planting net (40) is arranged at the bottom of the area surrounded by the lateral buoyancy fixing strip (37) and the transverse drip irrigation strip (39) close to the water storage tank (41), and herbaceous plants are planted.
8. A method of constructing a biochar ecological water bank revetment system suitable for alternate drought and flood stress according to any of claims 1-7, characterized by: firstly, two transverse grooves with a certain depth are cut along a side slope, the height of the top of the groove at an ascending position is ensured to be higher than the water level of flood for 50 years, the top of the groove at a descending position is positioned 5 cm to 10cm above a normal water level, a fixed protection groove (27) and related devices are buried in the transverse groove at the ascending position, a water storage tank (41) is buried in the transverse groove at the descending position, and then soil is filled and compacted; hammering into the sleeve fixing cone (32) to enable the lateral buoyancy fixing strip (37), the shrub buoyancy planting cylinder (35) and the planting sleeve net (40) to be respectively paved along the slope to be in a streamline shape so as to slow down the runoff flow rate; shallow root system shrubs are planted in the shrub buoyancy planting cylinder (35), and herbaceous plants are planted at the gap of the shrub buoyancy planting cylinder (35) and the planting sleeve net (40).
CN202210839135.1A 2022-07-18 2022-07-18 Biochar ecological water bank slope protection system suitable for alternate stress of drought and waterlogging Active CN115262477B (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003013424A (en) * 2001-06-29 2003-01-15 Tamai Kankyo Syst Kk Lakeside greening method
CN214168940U (en) * 2020-12-19 2021-09-10 韶关市华源水电建设有限公司 Ecological bank protection of hydraulic engineering
CN114277735A (en) * 2022-01-24 2022-04-05 浙江富江水利水电工程有限公司 Ecological river channel structure and construction method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003013424A (en) * 2001-06-29 2003-01-15 Tamai Kankyo Syst Kk Lakeside greening method
CN214168940U (en) * 2020-12-19 2021-09-10 韶关市华源水电建设有限公司 Ecological bank protection of hydraulic engineering
CN114277735A (en) * 2022-01-24 2022-04-05 浙江富江水利水电工程有限公司 Ecological river channel structure and construction method

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