36results about How to "Reduce runoff velocity" patented technology

The invention discloses a sectored multi-step ecological buffer type revetment system. The revetment system is provided with at least four levels of steps, blocking walls are sequentially arranged on the outer sides of the steps, one plant planting zone is arranged in the blocking wall of each level, soil matrix is arranged in the upper layer of each plant planting zone, yellow sand, ceramsite, soft rock and zeolite are sequentially in the lower layer of the plant planting zone of each level, and emersed landscape plants and submergence-tolerant plants are arranged in the plant planting zone of each level; hydraulic drop platforms are sequentially arranged in the corresponding positions of spaced plant planting zones of the blocking walls; and one guide plate is arranged between each blocking wall and the corresponding hydraulic drop platform; the plant planting zone of the first level is connected with a farmland drainage canal and is sectored towards the downstream to form a hydraulic-drop type hierarchical structure in an open sectored shape, the sector radius is 5-8 m, and the central angle is 45 degrees-75 degrees; and the blocking wall of the last level is connected with a river channel. The sectored multi-step ecological buffer type revetment system not only has the efficacies of protecting river channel side slope, and realizing flood water drainage and water and soil conservation, but also has good purification and landscape effects.

The invention provides a novel vegetation shallow trench and a method for processing runoff rainwater by using the novel vegetation shallow trench. The novel vegetation shallow trench comprises a vegetation layer and a shallow trench, wherein the shallow trench comprises a shallow trench bottom (1) and a slope (2), and an infiltration / drainage pipe (3) is buried in the shallow trench bottom (1). When surface runoff rainwater (9) enters the shallow trench and flows along the slope, the runoff can be purified through retention, filtering of vegetation (7), absorption and permeation, a part of runoff rainwater accumulated at the shallow trench bottom (1) enters a filter material layer surrounding the infiltration / drainage pipe (3) through infiltration effect, and the filtered runoff rainwater is drained into a receiving water body or other processing facilities through the infiltration / drainage pipe (3). Since the infiltration / drainage pipe (3) is designed at the shallow trench bottom, the novel vegetation shallow trench is remarkably improved in transmission, filtering and infiltration capabilities, has the advantages of small floor space, compact structure and strong contaminant blockage capability, and thus is applicable to a rainwater runoff pollution control system for high-density areas of a city.

The invention relates to a rain collection purification system for preventing water and soil loss caused by rain wash in mountains. According to the terrain of a mountain, a river and a slope, two or more sets of rain collection purification systems are designed from the top of the slope to the bottom of the slope; a flume in one single set of rain collection purification system is arranged in the mountain and submerge-fast plants are planted; a rainwater collecting tank is arranged at the middle part of each flume; one row of willow branch bundle row piles are piled below an effluent weir of each flume; geotextile is paved inside the piles; epicormic willow branches are bundled into living branch bundles; gravel purification filtering media are filled in the living branch bundles; the living branch bundles are arranged between the effluent weir of each flume and the willow branch bundle row piles; the living branch bundles are totally covered with soil and ecological bricks are paved so as to form a side slope plain stage; a water outlet of each rainwater collecting tank is connected with gravity sprinkling irrigation equipment by a PVC (Poly Vinyl Chloride) pipe. The rain collection purification system has the advantages that water and soil loss and water flow non-point source pollution which are caused by rain wash in the mountains can be effectively prevented; the flow rate is reduced and intercepted; most of water enters the water collecting tanks; overflowing runoff can be deep intercepted by the interaction of the living branch bundles, the gravel layers and surface microorganisms and the purification effect is obvious.

The invention discloses a method for building an ecological littoral zone in a buffer area. The method comprises building of gabions, a low pond, multiple ponds and a retention canal. The method comprises the following specific steps: (1) a gabion area is built, wherein the gabions are built between a normal water level of a river and a level of a flood occurring every two years, and emergent aquatic plants are planted in gaps between the gabions; (2) the low pond is built, wherein a low area which is 20cm lower than the gabion area and 20cm lower than foundations of the multiple ponds is built between the level of the flood occurring every two years and the level of a flood occurring every twenty years; (3) a multi-pond system is built, wherein two rows of pond systems are built in the low pond area, substrate improvement is conducted, submerged plants are closely planted in the ponds, and the emergent aquatic plants are planted on the foundations and the circumferences of the ponds; (4) the retention canal is built, wherein the retention canal is built along the outside of the level of the flood occurring every twenty years. The method effectively solves the ecological problems that a surface source of a gentle slope area of the river is severely polluted, landscapes are poor, the biodiversity is reduced and water and soil loss occurs, and offers a feasible and efficient ecological restoration measure for recovery and reconstruction of a hydro-fluctuation belt.

The invention discloses a transverse-furrow and sequential-ridge mellow soil anti-corrosion farming method of a purple soil slope farmland and particularly relates to the field of a soil erosion management technique of the purple soil slope farmland. In the method disclosed by the invention, a transverse furrow is excavated along the contour line on the purple soil slope farmland at the slope length interval which is less than the rill erosion generation critical length of the modified slope surface; the cross section of the transverse furrow is in an arc shape; the formed transverse furrow divides the whole slope farmland plot into multiple small farming units in the transverse slope direction; the two ends of the transverse furrow are connected with the original drainage furrows at the two ends of the slope farmland plot; and the integral farming terrain conditions with alternate furrows and ridges are formed by adopting a sequential-slope ridging farming mode, i.e. alternately farming and ridging in the sequential slop direction and reverse slop direction. The method disclosed by the invention can reduce the water and soil loss and prevent and control the soil erosion of the slope farmland, is beneficial to the enhancement of the water content in the soil of the farmland plot in the descending direction of the transverse furrow, improves the drought resistance of crops, maintains the agricultural productivity of the slope farmland and realizes the sustainable utilization of slope farmland water and soil resources.

The invention relates to a water purification type ecological bank protection overflow system. The ecological bank protection overflow system comprises a water diversion transverse furrow, a speed reduction weir, reaction tanks and a gabion bank revetment, all of which are sequentially arranged in the direction from the slope face to the water face. Isolation layers are arranged on the side faces of the reaction tanks. The reaction tanks are sequentially provided with planting layers, adsorption-nitrification layers, rubble layers and anaerobic-denitrification layers from top to bottom, and overflowing pipes inclined downwards in the direction of the water face are arranged in the rubble layers. According to the water purification type ecological bank protection overflow system, the staying time of non-point pollutants in water of all layers of structures of the ecological bank protection overflow system is controlled by reducing the radial flow speed of the non-point pollutants on the riverway slope face, the non-point pollutants can naturally and orderly be subjected to the work processes of permeating, absorbing, decomposing, converting and discharging in the system, and the aim of efficient purification of the non-point pollutants is finally achieved.

The invention relates to a large storage amount water storing and draining plate suitable for roof greening. The large storage amount water storing and draining plate comprises a plastic plate face, honeycomb water storing bottles, communicating grooves, draining holes, supporting columns, non-woven geotextiles and water absorbing belts. The plate face, the water storing bottles, the communicating grooves and the supporting columns are all made of high density polyethylene (HDPE) plastic base plates after stamping. The water storing bottles are arranged on the plate face in a honeycomb mode and connected through the communicating grooves. The water storing space is large, and meanwhile uniform water distributing is achieved. The draining holes are formed in the plate face. The supporting columns are arranged below the plate face. One layer of the non-woven geotextiles is adhered on the plate face and the bottom of the each bottle correspondingly. The water absorbing belts are arranged in the position, of the communicating grooves, of the geotextiles of the plate face and stretch in the bottoms of the bottles in the position of the water storing bottles. The structure is reasonable, forming is convenient, construction is convenient, maintenance is simple, the mechanical property is good, universality is high, system adaptability is strong, and meanwhile the multiple functions of water storing, water draining, filtering, ventilating, heat insulation, noise reduction, root thorns resisting and the like are achieved; and stored rainwater can be utilized to replenish water for a matrix.

The invention discloses a water and soil conservation ecological management system for an erosion badland. The water and soil conservation ecological management system comprises a slope crest and a terrace arranged along a contour line, wherein a water and soil conservation forest used for controlling water and soil loss is arranged on the slope crest; water and soil conservation arbors are planted in the water and soil conservation forest; the terrace comprises a terrace wall and a terrace surface; a first planting area is arranged on the terrace surface; and economic plants are planted in the first planting area. Generally, the water and nutrient conditions of the slope crest of the erosion badland are poor; the water and soil conservation forest is planted on the slope crest of the erosion badland; rainfall runoff is intercepted; soil infiltration is increased; the water content of soil is increased; secondary distribution of the rainfall runoff is achieved; the utilization rate ofwater resources is increased; meanwhile, the coverage rate of vegetation can be increased; barren mountains are greened; the roughness of an underlying surface is increased; the runoff speed is reduced; the flow rate of surface runoff is reduced; the scouring capacity of the runoff is weakened; thus, the water sources are conserved, and the water and soil loss is reduced; and the first planting area is arranged on the terrace surface, and the economic crops are planted for greening and also can be utilized for increasing the income and recovering the cost.

The invention provides a cast-in-place planting concrete construction method of saline-alkali soil. The cast-in-place planting concrete construction method comprises the following steps of weighing components, mixing, forming, splashing nutrient soil, laying planting soil, planting turfs or splashing grass seeds. According to the cast-in-place planting concrete construction method, in the condition that the saline-alkali soil is not improved, greening slope protections are constructed in the saline-alkali soil in a cast-in-place mode, so that the saline-alkali soil is protected by the slope protections and has a good landscape effect and an excellent ecological service function, and the lack of landscapes due to single vegetation type because required soil nutrients are difficult to supply to plants due to high saline and alkaline of the saline-alkali soil can be changed to a certain degree; the cast-in-place planting concrete construction method has the advantages that manpower and material resources are saved, the construction cost is reduced, the overall stability of the greening slope protections is good, the anti-flood capacity is high, and the environment is beautified; and the cast-in-place planting concrete construction method is suitable for being used in the fields of greening of urban recreational green space, residence communities, parking lots, roof gardens and building walls, slope protections of highways, reinforcing dams of rivers and the like.

The invention discloses a geological disaster control system. The geological disaster control system comprises a slope crest and side slopes; the slope crest is arranged above the side slopes and provided with batteries, vertical rods, retaining dams and a plurality of water tanks; the vertical rods are provided with solar panels; the batteries are provided with controllers; a water outlet pipe isarranged on the front side of each water tank and provided with an electromagnetic control valve C; water via holes A are formed in the water outlet pipes; water via holes B are formed in the two sides of the water via holes A; the back of each water via hole B is provided with a fence net A; rubber baffles are arranged in the water via holes B; the side slopes are provided with stabilizing dams;water storage dams are arranged between the stabilizing dams; diversion pipes are arranged at the water via holes B and the front sides of the water storage dams and provided with electromagnetic control valves B; an irrigation pipe is arranged on the side of each diversion pipe and provided with an electromagnetic control valve B and a water outlet; planting devices are arranged below the wateroutlets; fence nets B are arranged on the two sides of the diversion pipes; stand columns are arranged below the stabilizing dams and provided with reinforcing rods; and protective nets are arranged between the stand columns. By means of the geological disaster control system, water of irrigated plants is prevented from being lost too fast, the run-off speed is decreased, and the water absorptioncapacity of soil and the anti-scouring capacity of the slope surface are improved.

The invention discloses a method for reducing outward output of pollutants from an ionic type rare earth ore mining site. According to the method, rainwater infiltration is reduced through the measures of land leveling, water storage system building, vegetation recovery and the like, and therefore leaching of soil pollutants is reduced. In addition, a sprinkling irrigation system is built and used for vegetation irrigation, the seepage of the pollutants along with underground runoff (formed by rainwater infiltration) is reduced, and the probability that the pollutants enter the external environment along with overland runoff is reduced. In addition, the regulation and storage capacity of the water storage system is guaranteed through an irregular and non-quantitative irrigation mode to meet the water storage requirement of next rainfall.

The invention discloses a method for controlling water and soil losses on the forest land slope surface. A plurality of interception units are adopted in the method. The method comprises the following steps that firstly, the interception units and the forest land slope surface are fixed, the interception units comprise a plurality of bamboo piles, the lower ends of the bamboo piles are obliquely cut to form sharp ends, the multiple bamboo piles are arranged side by side, the multiple bamboo piles are connected into a sheet shape through bamboo skin pieces with a certain thickness, one sheet-shaped interception unit is bent to form an arc with the two ends bent upwards, and the interception units are knocked into the forest land slope surface through the sharp ends to be fixed; secondly, the arc space formed by each interception unit contains soil; thirdly, other interception units are fixed through the modes of the first step and the second step, and the multiple interception units are arranged from top to bottom in a staggered mode. By means of a bamboo protective screen, the rainfall intensity and the rainfall kinetic energy can be buffered, the flow speed of runoff scoured through rainwater is effectively reduced, rainwater and silt are effectively intercepted, and the function of conserving water and coil is achieved.

The invention discloses a method for controlling soil water erosion of an in-situ leaching abandoned mine land of an ion-type rare earth mine. The method obeys construction principles of (1) counter-slope water catchment, (2) high-water high storage, (3) storage before drainage, and (4) partitioned closure and drainage, so that water and soil loss intensity is effectively reduced, scouring to slopes is reduced, and the transport amount of downstream sand is reduced. In addition, the method can be used for effective collection of rainwater, so that the rainwater can be used for plant irrigation and harms can be turned into benefits. Besides, the method uses light materials, so that the possibility in that engineering facilities collapse due to rainwater emptying can be reduced, and practicability and the long service life of the facilities can be ensured.

The invention discloses a hydro-fluctuation belt ecological slope protection system for coping with hydrological changes. The hydro-fluctuation belt ecological slope protection system comprises a runoff treatment system and an ecological floating island system, wherein the runoff treatment system comprises grass planting side ditches and a water storage pit pond; the ecological floating island system comprises an ecological floating island and an ecological gabion base; the ecological floating island comprises a flexible base body and aquatic plants; and the ecological gabion base is positioned below the ecological floating island. The hydro-fluctuation belt ecological slope protection system is suitable for a hydro-fluctuation belt and composed of the runoff treatment system and the separable ecological floating island system, bank slope rainwater is purified and collected, water and soil are stabilized, meanwhile, the change of the water level of return water of the hydro-fluctuationbelt is coped with, and a growth space is provided for plants, organisms, fishes and the like; and along with the change of the water level, the ecological environment of the hydro-fluctuation belt is enriched, and the landscape effect is improved.

The invention discloses an efficient composite phosphorus removal type farmland tail water treatment system, which comprises a vegetation layer, a coarse sand layer and a reinforced phosphorus removallayer which are sequentially arranged from top to bottom. The vegetation layer comprises culture soil and vegetation; the coarse sand layer is laid at the bottom of the culture soil; the reinforced phosphorus removal layer comprises a plurality of reinforced phosphorus removal geocontainers and zeolite filled among the reinforced phosphorus removal geocontainers; the reinforced phosphorus removalgeocontainers are lumps formed by mixing sandstone, zero-valent iron, zero-valent aluminum, activated carbon powder and an additive and then performing wrapping with geotextile; wherein the weight percentages of the sandstone, the zero-valent iron, the zero-valent aluminum, the activated carbon powder and the additive are 70-80%, 4-6%, 3-6%, 7-12% and 3-8% respectively; meanwhile, the preparationmethod of the farmland tail water treatment system is improved, the sandstone, zero-valent iron, zero-valent aluminum, activated carbon powder and the additive are mixed according to a certain proportion and then the mixture is coated with geotextile to prepare the reinforced phosphorus removal geocontainers, thus effectively reducing the phosphorus content, suspended matters and other pollutantsin sewage.

The invention discloses a rainwater collection and reutilization device for a greening lawn. The rainwater collection and reutilization device comprises a box body; the end face of the box body communicates with a water storage tank, and a stone layer, an activated carbon layer, a gauze layer and an ultrafiltration membrane are sequentially mounted in the box body from top to bottom; the lower end of the water storage tank communicates with a water feeding pipe, and a one-way valve is mounted on the water feeding pipe; the lower end of the water feeding pipe communicates with a buffering box body, and one end of the buffering box body communicates with a water discharging pipe; the tail end of the water discharging pipe communicates with a piston pipe, and an L-shaped bent pipe is connected to the piston pipe, penetrates through the box body, and is provided with a pressure increasing valve; and a spray head is mounted at the end, away from the box body, of the L-shaped bent pipe. The rainwater collection and reutilization device has the advantages that the functions of seepage, filtration, storage, drainage and the like are achieved, the rainwater runoff speed is decreased, rainwater downward seepage and filtration are effectively improved, the utilization rate of rainwater is increased, circulation of natural rainfall, surface water and underground water is coordinated, environment microclimates can further be improved, the municipal drainage pressure is reduced, and the engineering construction cost is saved.

The invention discloses a method for suppressing water and soil erosion of a slope. The method includes the steps that (a) intercepting fence units are fixedly arranged on the slope, wherein each intercepting fence unit comprises two vertical bamboo piles, transverse strip-shaped connecting pieces are fixedly connected to the upper and lower parts of the two bamboo piles respectively, a bamboo netis fixedly connected in a space defined by the bamboo piles and the connecting pieces, tips are arranged at the lower ends of the bamboo piles, the tips of the two bamboo piles are vertically tampedinto the slope along the contour line of the slope, and then the intercepting fence units are fixed to the slope; (b) the space of the side, opposite to the intercepting fence units, of the slope is filled with macadam, wherein the macadam is formed by mixing macadam with the particle size of 1-5 mm with macadam with the particle size of 5-50 mm in the volume ratio of 1:(30-40). The method is economical and practical, provides convenience for construction and can effectively suppress soil and water erosion of the slope.

The invention discloses a modular road rainfall runoff treatment system for a sponge city and a treatment method. The system comprises a modular curb and treatment ponds. The treatment ponds include a primary treatment pond, a secondary treatment pond and a ternary treatment pond. Rainwater flows into the primary treatment pond, a large amount of solid waste is left, and solid suspended particulate matter impurities are filtered out selectively; then rainwater enters the second treatment pond, the speed is reduced through S-shaped flow, various kinds of hygrophytes are planted to purify water, secondary filtration is conducted on solid waste, and the concentration of organic pollutants in rainfall runoff is reduced; finally rainwater enters the ternary treatment pond for accumulating infiltration, and clean redundant rainwater is slowly discharged into a greenbelt nearby. The system solves the problem that water is gathered on the road in rainy days and facilitates handling and transportation of curbs, construction flexibility is high, preliminary purification of rainwater can be achieved, peak flow and flood volume of a rainstorm can be reduced, rainwater resources can be effectively utilized, rainwater is used as a supplement of underground water, and the amount of water for greenbelt irrigation can be reduced.

The invention discloses a sectored multi-step ecological buffer type revetment system. The revetment system is provided with at least four levels of steps, blocking walls are sequentially arranged on the outer sides of the steps, one plant planting zone is arranged in the blocking wall of each level, soil matrix is arranged in the upper layer of each plant planting zone, yellow sand, ceramsite, soft rock and zeolite are sequentially in the lower layer of the plant planting zone of each level, and emersed landscape plants and submergence-tolerant plants are arranged in the plant planting zone of each level; hydraulic drop platforms are sequentially arranged in the corresponding positions of spaced plant planting zones of the blocking walls; and one guide plate is arranged between each blocking wall and the corresponding hydraulic drop platform; the plant planting zone of the first level is connected with a farmland drainage canal and is sectored towards the downstream to form a hydraulic-drop type hierarchical structure in an open sectored shape, the sector radius is 5-8 m, and the central angle is 45 degrees-75 degrees; and the blocking wall of the last level is connected with a river channel. The sectored multi-step ecological buffer type revetment system not only has the efficacies of protecting river channel side slope, and realizing flood water drainage and water and soil conservation, but also has good purification and landscape effects.

The invention discloses a method for building an ecological littoral zone in a buffer area. The method comprises building of gabions, a low pond, multiple ponds and a retention canal. The method comprises the following specific steps: (1) a gabion area is built, wherein the gabions are built between a normal water level of a river and a level of a flood occurring every two years, and emergent aquatic plants are planted in gaps between the gabions; (2) the low pond is built, wherein a low area which is 20cm lower than the gabion area and 20cm lower than foundations of the multiple ponds is built between the level of the flood occurring every two years and the level of a flood occurring every twenty years; (3) a multi-pond system is built, wherein two rows of pond systems are built in the low pond area, substrate improvement is conducted, submerged plants are closely planted in the ponds, and the emergent aquatic plants are planted on the foundations and the circumferences of the ponds; (4) the retention canal is built, wherein the retention canal is built along the outside of the level of the flood occurring every twenty years. The method effectively solves the ecological problems that a surface source of a gentle slope area of the river is severely polluted, landscapes are poor, the biodiversity is reduced and water and soil loss occurs, and offers a feasible and efficient ecological restoration measure for recovery and reconstruction of a hydro-fluctuation belt.

The invention discloses a transverse-furrow and sequential-ridge mellow soil anti-corrosion farming method of a purple soil slope farmland and particularly relates to the field of a soil erosion management technique of the purple soil slope farmland. In the method disclosed by the invention, a transverse furrow is excavated along the contour line on the purple soil slope farmland at the slope length interval which is less than the rill erosion generation critical length of the modified slope surface; the cross section of the transverse furrow is in an arc shape; the formed transverse furrow divides the whole slope farmland plot into multiple small farming units in the transverse slope direction; the two ends of the transverse furrow are connected with the original drainage furrows at the two ends of the slope farmland plot; and the integral farming terrain conditions with alternate furrows and ridges are formed by adopting a sequential-slope ridging farming mode, i.e. alternately farming and ridging in the sequential slop direction and reverse slop direction. The method disclosed by the invention can reduce the water and soil loss and prevent and control the soil erosion of the slope farmland, is beneficial to the enhancement of the water content in the soil of the farmland plot in the descending direction of the transverse furrow, improves the drought resistance of crops, maintains the agricultural productivity of the slope farmland and realizes the sustainable utilization of slope farmland water and soil resources.

The invention relates to a rain collection purification system for preventing water and soil loss caused by rain wash in mountains. According to the terrain of a mountain, a river and a slope, two or more sets of rain collection purification systems are designed from the top of the slope to the bottom of the slope; a flume in one single set of rain collection purification system is arranged in the mountain and submerge-fast plants are planted; a rainwater collecting tank is arranged at the middle part of each flume; one row of willow branch bundle row piles are piled below an effluent weir of each flume; geotextile is paved inside the piles; epicormic willow branches are bundled into living branch bundles; gravel purification filtering media are filled in the living branch bundles; the living branch bundles are arranged between the effluent weir of each flume and the willow branch bundle row piles; the living branch bundles are totally covered with soil and ecological bricks are paved so as to form a side slope plain stage; a water outlet of each rainwater collecting tank is connected with gravity sprinkling irrigation equipment by a PVC (Poly Vinyl Chloride) pipe. The rain collection purification system has the advantages that water and soil loss and water flow non-point source pollution which are caused by rain wash in the mountains can be effectively prevented; the flow rate is reduced and intercepted; most of water enters the water collecting tanks; overflowing runoff can be deep intercepted by the interaction of the living branch bundles, the gravel layers and surface microorganisms and the purification effect is obvious.

The invention provides a multi-stage purification type grass planting ditch special for green sponge and a construction method thereof. The grass planting ditch is divided into an upper water flow area and a lower infiltration area through vegetation; the infiltration area is a first filtering area which is vertically distributed; baffles and second filtering areas are further arranged in the water flow area, and the baffles are matched with the wall of the grass planting ditch to divide the grass planting ditch into a plurality of water flow channels in the width direction; the second filtering areas are arranged at the end-to-end joints of every two water flow channels; the outlet of a flow channel is disposed at an outflow area, and an overflow wall is arranged between the water flow channel closest to the road surface and the outflow area to separate the water flow channel from the outflow area; each baffle comprises a base and a partition plate, the base is buried in the infiltration area, and the partition plate is exposed to the top of the water flow area; the baffle is hollow overall, permeation holes are formed in the surface of the base and are communicated with the interior of the baffle; a water collecting pipe is further arranged in the infiltration area and located below the outflow area, and the water collecting pipe is buried in a position equivalent to or lowerthan the height of the base of the baffle.

The invention provides a multi-stage purification type grass planting ditch for green sponge and a construction method thereof. The grass planting channel is divided into an upper water flow area and a lower infiltration area through vegetation; the infiltration area is a vertically distributed first filter The water flow area is also provided with a baffle plate and a second filter area, and the baffle plate and the grass-planting ditch wall cooperate to divide the width direction of the grass-planting ditch into a plurality of water flow channels; the second filter area is arranged at the head and tail of the two water flow channels The connection point; the outlet of the flow channel is arranged in the outflow area, and an overflow wall is arranged between a water flow channel closest to the road surface and the outflow area to separate the two; the baffle includes a base and a partition, and the base It is buried in the infiltration area, and the baffle is exposed to the top of the water flow area; the baffle is hollow as a whole, and the surface of the base is provided with infiltration holes to communicate with the interior of the baffle; Below the flow area, and the water collecting pipe is buried at a height equal to or lower than the base of the baffle.

The invention discloses a geological disaster control system. The geological disaster control system comprises a slope crest and side slopes; the slope crest is arranged above the side slopes and provided with batteries, vertical rods, retaining dams and a plurality of water tanks; the vertical rods are provided with solar panels; the batteries are provided with controllers; a water outlet pipe isarranged on the front side of each water tank and provided with an electromagnetic control valve C; water via holes A are formed in the water outlet pipes; water via holes B are formed in the two sides of the water via holes A; the back of each water via hole B is provided with a fence net A; rubber baffles are arranged in the water via holes B; the side slopes are provided with stabilizing dams;water storage dams are arranged between the stabilizing dams; diversion pipes are arranged at the water via holes B and the front sides of the water storage dams and provided with electromagnetic control valves B; an irrigation pipe is arranged on the side of each diversion pipe and provided with an electromagnetic control valve B and a water outlet; planting devices are arranged below the wateroutlets; fence nets B are arranged on the two sides of the diversion pipes; stand columns are arranged below the stabilizing dams and provided with reinforcing rods; and protective nets are arranged between the stand columns. By means of the geological disaster control system, water of irrigated plants is prevented from being lost too fast, the run-off speed is decreased, and the water absorptioncapacity of soil and the anti-scouring capacity of the slope surface are improved.

The invention discloses a vegetation buffer strand with an optimized water flow path and a construction method. The vegetation buffer strand is applied to building of vegetation buffer strands of a slope land. The vegetation buffer strand is characterized by comprising a plurality of downward recessed ecological small filter tanks arranged on a slope land, the depth of each ecological small filtertank is 4-5cm, the distance between adjacent ecological small filter tanks is 10-20cm, the length of each ecological small filter tank is 20-30cm along a slope direction, the width of each ecologicalsmall filter tank is 20-30cm in a direction perpendicular to a slope, and herb plants are planted in the ecological small filter tanks and spaces among the ecological small filter tanks. Runoff flowvelocity is reduced, eroding of runoff flow for the surface is reduced, water and soil loss is relieved, the downward recessed ecological small filter tanks are artificially built, staying time of water flow in the buffer strand is prolonged, and the agricultural non-point source pollutant removing function of plants is enhanced.

The invention discloses a rainwater collection and reuse device for greening flats, which comprises a box body, the end face of the box body is connected with a water storage tank, and the box body is sequentially installed with a stone layer, an activated carbon layer, a gauze layer and a Ultrafiltration membrane, the lower end of the water storage box is connected with a water inlet pipe, a check valve is installed on the water inlet pipe, the lower end of the water inlet pipe is connected with a buffer box, and one end of the buffer box is connected with an outlet Water pipe, the end of the water outlet pipe is connected with a piston tube, the piston tube is connected with an L-shaped elbow, the L-shaped elbow runs through the box and is equipped with a booster valve, and the L-shaped elbow is far away from the box One end is equipped with a nozzle. The advantages are: the present invention has the functions of infiltration, filtration, storage, and drainage, reduces the runoff velocity of rainwater, effectively improves the infiltration of rainwater, improves the utilization rate of rainwater, coordinates the circulation of natural precipitation, surface water, and groundwater, and can also improve the environmental microclimate , reduce municipal drainage pressure, and save engineering construction costs.

The invention provides a method for interplanting high-quality and high-yield corn with soybean. The method comprises the steps of seed selection, seed treatment, soil preparation, sowing, soil covering, film mulching, fertilization, growth period management and harvesting. Two rows of corn and four rows of soybean are planted, the corn and the soybean are matched in height, no chemical or pesticide is applied in the whole planting process, and only a foliar fertilizer is sprayed. During seed treatment, the seeds are soaked with the same foliar fertilizer, the vigor of the seeds is increased from the beginning, and the germination rate is improved. After seedling emergence, root systems are developed, leaves are fat, stems are thick, leaves are dark green, the growth vigor is vigorous in the seedling stage, and sufficient water and fertilizer energy supply is ensured by powerful root system plants. While plants are sufficiently supplied to grow quickly, the bidirectional stress resistance of plant diseases, insects, drought, waterlogging, low temperature, high temperature, even saline-alkali soil and the like is remarkably enhanced, high yield and high quality are achieved withoutchemical fertilizers and pesticides, the yield per mu of corn is 1400 kg or above, the hundred-grain weight of the corn is 42-52 g, and the yield per mu of the soybean is 400 kg or above.