37results about How to "Prevent wind erosion" patented technology

The invention discloses a dry construction method for a wind-blown sand subgrade. According to physicochemical properties and mechanics characteristics of wind-blown sand, the method uses a vibrating compaction machine to perform vibration and rolling compaction on the wind-blown sand in a natural state paved on the subgrade under proper pressure by selecting proper vibration frequency and amplitude, so that the strength of the subgrade after the vibrating compaction meets the design requirement; and the method adopts a layer of the wind-blown sand and a layer of gravelly soil, and totally encloses the subgrade by clay or grit finally so as to avoid the wind erosion and ensure the overall stability of the subgrade. Compared with the prior art, the method avoids the use of precious water resources for construction in desert areas lacking water severely, not only reduces the construction cost of projects, but also reduces the influence on the local environment to the minimum level, and is an ideal construction method with economic and social benefits.

A method for eliminating the Cd pollution of soil by use of solanum features that the black nightshade is planted in the Cd polluted soil for enriching the Cd pollutant and the mature black-nightshade is removed, so eliminating the pollution of soil.

The present invention relates to botanical repairing technology of polluted environment, and is especially the method of utilizing super enriching plant in repairing heavy metal contaminated soil. The method includes planting castor in lead contaminated soil for the root system of castor to absorb lead from soil and removing the castor in blooming stage or maturing stage from the contaminated soil. The said method can eliminate lead from the contaminated soil to repair lead contaminated soil without affecting the physical and chemical properties, and has low power consumption, low cost, easy operation, no secondary pollution and other advantages.

A mechanized cultivation method with three-year rotation of crops for the northeast features that for the first year, the field is prepared in the later autum, the seeds are sowed in the spring and the crops are harvested in the autum, for the second year, the stubbles are broken and returned back to field in the later auttom, seeds are sowed in the spring and the crops are harvested in the autum, and for the third year, the stubbles are broken in the field and the seeds are sowed in the spring, and the crops are harvested in the autum. It can preserve the moisture in soil for high yield.

The invention discloses a structure method of a biological fertilizer island sand-stabilizing sand-protecting barrier. The method comprises the technical steps of forming composite bodies through a certain number of foundation sandbags according to various shapes, enabling a range of the sizes of the composite bodies to be 2-5m, enabling a range of the size of an arrangement mode unit to be larger than 20m and the like. Matrix additives in the foundation sandbags are composed of moving aeolian sandy soil, powder-shaped decomposition sheep manure, smashed and decaying plant straw or corncobs, peat, clay, water-retaining agents, multi-strain biobacterial manure and plant seeds with germination capacity. The foundation sandbags and composite sandbags are arranged in shapes of an island shape, a straight line shape, a crescent moon shape and the like on the surface of a moving dune according to different arrangement modes, and the sand-protecting barrier which integrates functions of wind erosion control, local soil environment improvement, vegetation recovery and the like into a whole and is used for managing the moving dune is formed.

The invention discloses a method for repairing lead and zinc polluted soil by utilizing accumulator plants-ryegrass and pig manure. The method comprises the following steps of: mixing the pig manure with the lead and zinc polluted soil; planting the ryegrass; fully uniformly mixing the pig manure with surface layer polluted soil under the condition that the applied concentration of the pig manure is 20-80g / kg; absorbing lead and zinc in the lead and zinc polluted soil through the root parts of the ryegrass; transferring the lead and the zinc to the overground parts of the ryegrass; when the overground parts of the plants are mature and can be harvested, moving away the plants from the polluted soil so as to achieve the purpose of removing lead and zinc pollution from the soil. As the ryegrass is good in regeneration capability and high in growth speed and can be repeatedly harvested without complex management, the energy consumption is low, the operability is good, the ecological safety is high, the environmental physicochemical property cannot be destroyed, the secondary pollution cannot be caused, a soil structure cannot be destroyed and polluted, the fertility improvement capability cannot be influenced, and the repair expense is further reduced.

A construction method for subgrade filling of general-speed railways in desert areas, which is characterized in that: ①, surface soil is removed, and the base is processed by impact rolling 24 times to complete the base treatment; ②, the part below the surface of the base bed is filled with silt and fine sand Lay a layer of two-way geogrid with a tensile strength of 30KN / m every vertical height of 0.6m in the sand layer, and lay a layer of TGDG260 one-way geogrid every 1.8m when the embankment filling height is greater than 12m; ③, Lay 0.2 m thick medium-coarse sand, and a layer of composite geomembrane is sandwiched in the medium-coarse sand; ④, the surface layer of the foundation bed is filled with 0.6m thick Group A soil; ⑤, the subgrade slope is protected by shrub grids, arranged in a square The distance is 1m. The beneficial effect of the present invention is: it mainly solves the technical problem of how to carry out reasonable filling construction under the condition of lack of earthwork in the desert area and severe wind erosion of the side slope; The initial compaction and multiple compaction techniques of road rollers are used as an auxiliary means of quality control to ensure the quality of roadbed filling construction.

The invention relates to plant repairing technology of cadmium polluted soil, in particular to a method for repairing cadmium polluted soil by utilizing enrichment plant bidens tripartita. Bidens tripartita is planted on soil containing pollutant cadmium, the root system of bidens tripartita absorbs cadmium in polluted soil and transfers the cadmium to the overground part organ, the overground part organ is taken away from the polluted soil when the overground part organ of the plant grows to biomass liveweight maximum, thus realizing the aim of removing pollutant cadmium in soil. The invention utilizes enrichment plant bidens tripartita to treat cadmium polluted soil and has the advantages of low cost, strong operability, no destroy on soil physicochemical properties, no arising of secondary pollution and good effect on preventing wind erosion and water erosion of polluted soil.

The invention relates to a method for controlling wind erosion of nursery stock bases in desert areas. The method relates to a nursery stock sand storm protection cover which comprises a cover body, a cover edge and a fixed drill rod, wherein the cover body is shaped like a round table; the cover edge is arranged at the bottom of the cover body; and the fixed drill rod is inserted into a fixed hole on the cover edge and then fixed in soil on the earth surface. After a nursery stock is planted in a desert area, the nursery stock sand storm protection cover is taken, and the cover body and a gap on the side wall of the cover edge are slightly unfolded to horizontally move toward the nursery stock; branches of the nursery stock are collapsed and pass through the gap; the cover body is arranged around the nursery stock; the protection cover is rotated to ensure that the gap on the protection cover is toward the downwind direction of the local predominant wind direction; and along with the growth of the nursery stock, when the sand storm protection cover limits the growth of the trunk, the cover body and the gap on the side wall of the cover edge are unfolded and then the protection cover is taken off. The method can be used for the forestation in desert areas with the advantages of improving the micro environment of nursery stock bases, preventing the wind erosion of the soil at the roots of the newly planted seedlings and improving the nursery stock survival rate, has a wide application range and can be widely applied to the construction projects of ecological forests and economic forests.

The invention provides a self-adjusting type permafrost protecting device. The protecting device comprises a support and a fiber plate, wherein a solar cell panel and a cover plate are mounted on the support; a driving motor controlled by an automation controller is mounted on the cover plate; two sets of telescopic guide rails are arranged on each of the upper surface and the lower surface of the cover plate; the driving motor drives the four sets of telescopic guide rails to extend or retract simultaneously; sun shielding plates are arranged on the telescopic guide rails; and the automation controller is used for setting an upper limit valve and a lower limit value of the temperature in advance, detecting the environment temperature, comparing a detected environment temperature value with the preset upper limit valve and the preset lower limit value of the temperature and controlling the driving motor according to the detected environment temperature so as to enable the telescopic guide rails to extend or retract. By the aid of the protecting device, the sun shielding plates can be extended or retracted according to the environment temperature, so that the heat transmitted to side slopes can be reduced, and excessive evaporation of side slope moisture can be prevented; side slope wind erosion can be prevented; and heat and moisture replenishment required by normal growth of side slope plants can be guaranteed. In addition, the protecting device can be recycled.

A movable sand deposition sand barrier comprises a plurality of sand barrier plates, wherein the sand barrier plates are arranged along a sand deposition ribbon sand ridge line in a connected mode, and every two adjacent sand barrier plates are connected in a butt joint mode or a lap joint mode through a sand barrier connecting clamping pin fixing assembly. The edge of the lower end of each sand barrier plate is provided with a double-edged knife face, and the upper portion of each sand barrier plate is provided with a plurality of sets of vent holes. Each sand barrier connecting clamping pin fixing assembly comprises two connecting plates and two bolts; the left end and the right end of each connecting plate are provided with bolt through holes, every two corresponding connecting plates are arranged on the front surface and the back surface of the connecting end of every two adjacent sand barrier plates, and the bolts penetrate through the bolt through holes and the vent holes to fixedly connect every two adjacent sand barrier plates. The movable sand deposition sand barrier is mainly used for depositing drift sand and promoting a sand deposition ribbon or a sand dune to be higher and larger. When the blocked or intercepted sand is deposited to be high enough so that the sand deposition sand barrier can not effectively prevent the deposited drift sand or a sand ridge line from shifting, the sand barrier can be vertically pulled upwards or pulled out to be arranged on a new sand ridge line again to promote the sand deposition ribbon to be higher.

The invention discloses an early-maturing and dense-planting cultivation method for fresh maize. The method includes the following steps that seed cultivation is performed, wherein heat preservation seedling cultivation is performed from mid-late February to early March in early spring; transplanting is conducted when each seedling grows 3-5 leaves, and the seedlings are transplanted in the groundfor heat preservation; planting is conducted, the transplanted seedlings are planted in holes, holes are formed at planting points, at least three seedlings are placed in each hole, the holes are filled with fertilizers before transplanting, and then full irrigation is performed; thermal insulation tools are removed gradually when the temperature rises due to environment warming; secondary seedling cultivation is performed in mid-early June, the seedling cultivation mode and the planting mode are same as these in spring; transplanting starts after preceding maize is harvested. According to the method, the maize can be planted in two seasons one year, meanwhile the centralized selling time of the maize is staggered, maize selling in a market can be advanced or delayed, lagging sales are avoided, and meanwhile the economic benefits are greatly improved. Meanwhile, the dense-planting in thin-hole technology is implemented, the labor and cost of transplanting are reduced.

The invention discloses a desert road slope vegetation soil fixation system and a soil fixation method.The soil fixation system is formed by splicing a plurality of soil fixation modules, each soil fixation module comprises a grating soil fixation plate with a planting opening in the center and a soil fixation basket fixed to the bottom of the grating soil fixation plate, and the soil fixation system further comprises a fixing pile; and the fixing piles are fixed on the fixing plates on the edge of the system. Due to the arrangement of the grating soil fixing plates, the soil fixing baskets and the plants, the stability of the roadbed can be protected, the effects of wind prevention and sand fixation can be achieved, fertilizer and microorganisms can be provided for soil through nutrient soil, the local environment of the soil is improved, and the plants can restore the ecological environment. Therefore, the desert road maintenance method is a desert road maintenance technology integrating multiple functions of preventing wind erosion, improving local soil environment, recovering vegetation and the like.

The invention discloses an intelligent sound-removing and noise-reducing diesel generating set, and belongs to the field of generating sets. The intelligent sound-removing and noise-reducing diesel generating set comprises a bottom plate, wherein an oil tank is bolted to the left side of the top of the bottom plate, an engine body is fixedly connected to the right side of the oil tank, the bottom of the engine body is bolted to the top of the bottom plate, and an electric ball is fixedly connected to the right side of the engine body. The bottom of the electric ball is bolted to the top of the bottom plate, the top of the electric ball is bolted to a controller body, and the two sides of the bottom of the bottom plate are both fixedly connected with damping devices. By arranging a moving device, the device is convenient to move, meanwhile, damping is conducted on the device, and noise is reduced. By arranging a monitoring device, the sound volume of the outer side of the device can be monitored, and a worker can conveniently check and adjust the device in time. By arranging a mute box, the device can absorb and block noise generated by an engine unit, and therefore pollution of the noise to the working environment can be reduced.

The invention discloses a cultivation method for peanuts by full film-mulching of ridges for preventing wind corrosion and collecting trace rainwater, belonging to the technical field of peanut cultivation. The invention effectively solves the problem of soil drought in a sowing period. The cultivation method for the peanuts by full film-mulching of the ridges for preventing wind corrosion and collecting trace rainwater comprises the following steps: (1) soil preparation; (2) selection of a peanut variety and seed treatment; (3) film mulching and sowing in an optimum period; etc. According tothe invention, through the cultivation method with full film-mulching of the ridges, the fertility of soil is effectively protected; wind corrosion is avoided; rainfall is effectively utilized; the trace rainwater falling on mulching films forms a streamflow to flow toward the position of a seedling belt to infiltrate into rhizosphere soil, so the purpose of collecting the trace rainwater is achieved; limited rainwater resources are fully utilized; and transition from passive drought to active drought is realized.

The invention provides a wind prevention and sand fixation reinforcing method of a transmission line tower foundation. The wind prevention and sand fixation reinforcing method is used for reinforcing the transmission line tower foundation in desert areas, the foundation is in a reversed T shape, and step-shaped projections are arranged at the joint of a stand column and a base plate of the foundation; the wind prevention and sand fixation reinforcing method includes reinforcing and painting the foundation and paving and putting up barrier around the foundation buried in the ground. Compared with wind prevention and sand fixation reinforcing methods in the prior art, the wind prevention and sand fixation reinforcing method of the transmission line tower foundation has the advantages that damages caused by sand erosion to the transmission line tower foundation are greatly reduced, meanwhile, normal work of the transmission line tower foundation is guaranteed by reinforcing sandy ground, later-period maintenance expenses are reduced, and service life of the transmission line tower foundation is prolonged.

The invention relates to the field of road protection, in particular to a covering net structure for slowing down burying of sand blocking nets by a moving dune, the covering net adopts an anti-aging nylon woven net with the porosity of 55%, the aperture of 1.5 mm * 1.5 mm and the wire diameter of 0.5 mm, the covering net is arranged between two sand blocking nets and extends to a windward side slope toe of the sand dune in front of the sand blocking nets, and the edge is fixed by a No.1 bamboo drill rod with the length of 1 m; the fixing range is 9 m away from the edge of the covering net, the middle of the covering net is densified through a second bamboo drill rod with the length of 0.5 m, different covering nets are connected by 20 cm in an overlapped mode, and the overlapped portion is fixed through a first bamboo drill rod. The sand dunes in front of the sand blocking nets are covered with the covering nets, contact between sand grains and air flow is reduced, the effect of preventing the moving sand dunes from moving to bury the sand blocking nets is achieved, the covering nets cover the space between the first sand blocking net and the second sand blocking net, and the moving sand dunes can be further prevented from moving to bury the sand blocking nets.

The invention provides an intercropping planting method for young xantolis stenosepala and soybeans in arid and semi-arid regions. The soybeans are planted between two tree rows of the xantolis stenosepala in a wide-narrow row manner, and drip irrigation management is conducted. According to the method, the soybeans have the effects of increasing the ground surface coverage, reducing soil wind erosion of young fruit tree land, increasing the survival rate of fruit trees and improving the soil quality. A stable agriculture and forestry composite system can be formed by combining the young xantolis stenosepala and the soybeans, the farmland ecological environment is improved, the land resource and water and fertilizer resource utilization rate is increased, and meanwhile, the crop yield advantage is utilized to increase farmer income in the early planting stage without stable income of the fruit trees.

A deep soil loosener with laterally bent blades is composed of machine frame, laterally bent deep loosening blades with 40-50 deg of inclination and parabolic shape, ground wheels, and grass cutting disks. One grass cutting disk is matched with one latterally bent deep loosening blade and is arranged in the front of said loosensing blade for preventing the straw or grass from winding on the loosening blade. Its advantages are low interference to cultivated soil layer and smooth ground surface.

The invention discloses a dry construction method for a wind-blown sand subgrade. According to physicochemical properties and mechanics characteristics of wind-blown sand, the method uses a vibrating compaction machine to perform vibration and rolling compaction on the wind-blown sand in a natural state paved on the subgrade under proper pressure by selecting proper vibration frequency and amplitude, so that the strength of the subgrade after the vibrating compaction meets the design requirement; and the method adopts a layer of the wind-blown sand and a layer of gravelly soil, and totally encloses the subgrade by clay or grit finally so as to avoid the wind erosion and ensure the overall stability of the subgrade. Compared with the prior art, the method avoids the use of precious water resources for construction in desert areas lacking water severely, not only reduces the construction cost of projects, but also reduces the influence on the local environment to the minimum level, and is an ideal construction method with economic and social benefits.

The invention relates to a method of land consolidation, in particular to a water collection irrigation system for gullies and slopes in the loess platform area; it solves the problem of soil erosion caused by rainfall in summer and autumn in the ditch and slopes of the loess platform area, which easily causes field sills to collapse, and winter and spring Unable to meet irrigation water demand, leading to technical problems that reduce land productivity. The technical solution of the present invention is: a water collection and irrigation system for ditch slopes in the loess plateau area, which is special in that it includes a terraced field water collection unit and a drainage and irrigation system; the terraced field water collection unit includes a plurality of fields arranged in a ladder shape The field block includes the field ridge and the field surface; the field ridge is set on the side of the field surface away from the upper-level field block; the middle part of the field ridge is provided with a drainage ditch, and the drainage ditch divides the field ridge into an inner field ridge and an outer field ridge; The seepage hole of the drainage ditch; the side of the field surface close to the field ridge is lower than the side away from the field ridge; at the same time, the invention also provides a construction method of a water collection and irrigation system for ditch slopes in the loess plateau area.

The invention provides a self-adjusting type permafrost protecting device. The protecting device comprises a support and a fiber plate, wherein a solar cell panel and a cover plate are mounted on the support; a driving motor controlled by an automation controller is mounted on the cover plate; two sets of telescopic guide rails are arranged on each of the upper surface and the lower surface of the cover plate; the driving motor drives the four sets of telescopic guide rails to extend or retract simultaneously; sun shielding plates are arranged on the telescopic guide rails; and the automation controller is used for setting an upper limit valve and a lower limit value of the temperature in advance, detecting the environment temperature, comparing a detected environment temperature value with the preset upper limit valve and the preset lower limit value of the temperature and controlling the driving motor according to the detected environment temperature so as to enable the telescopic guide rails to extend or retract. By the aid of the protecting device, the sun shielding plates can be extended or retracted according to the environment temperature, so that the heat transmitted to side slopes can be reduced, and excessive evaporation of side slope moisture can be prevented; side slope wind erosion can be prevented; and heat and moisture replenishment required by normal growth of side slope plants can be guaranteed. In addition, the protecting device can be recycled.

The invention relates to a stubble-cleaning precise sowing tiller, which comprises a sowing tilling mechanism, a stubble cleaning mechanism and a traction mechanism, wherein the traction mechanism is a small tractor, the sowing tilling mechanism comprises a machine frame, an upper grid pressing wheel assembly, a bottom grid pressing wheel assembly, a plough share assembly, a hook opener, a power driving wheel, a sowing tank assembly and a fertilizing tank assembly, the stubble cleaning mechanism comprises a gearbox and a knife roller, the gearbox is provided with a power input shaft and a knife roller shaft, the power input shaft is provided with a passive belt wheel, the power output shaft of the tractor is provided with an active belt wheel, the passive belt wheel is connected with the active belt wheel through a belt, the knife roller is arranged on the knife roller shaft, and the knife roller shaft is provided with a stubble cleaning knife. The tiller has the advantages that the labor strength is reduced, the tilling efficiency is improved, the farming time is not delayed, and the tilling quality and sowing quality are ensured.

The invention relates to a method for controlling wind erosion of nursery stock bases in desert areas. The method relates to a nursery stock sand storm protection cover which comprises a cover body, a cover edge and a fixed drill rod, wherein the cover body is shaped like a round table; the cover edge is arranged at the bottom of the cover body; and the fixed drill rod is inserted into a fixed hole on the cover edge and then fixed in soil on the earth surface. After a nursery stock is planted in a desert area, the nursery stock sand storm protection cover is taken, and the cover body and a gap on the side wall of the cover edge are slightly unfolded to horizontally move toward the nursery stock; branches of the nursery stock are collapsed and pass through the gap; the cover body is arranged around the nursery stock; the protection cover is rotated to ensure that the gap on the protection cover is toward the downwind direction of the local predominant wind direction; and along with the growth of the nursery stock, when the sand storm protection cover limits the growth of the trunk, the cover body and the gap on the side wall of the cover edge are unfolded and then the protection cover is taken off. The method can be used for the forestation in desert areas with the advantages of improving the micro environment of nursery stock bases, preventing the wind erosion of the soil at the roots of the newly planted seedlings and improving the nursery stock survival rate, has a wide application range and can be widely applied to the construction projects of ecological forests and economic forests.

The invention discloses a method for carrying out rapid face excavation construction on a loess tunnel by double rows of small conduits, which comprises the following steps of: excavation and supporting of a side front slope, i.e. after completing earth excavation of the side front slope, immediately carrying out temporary protection of suspended net shotcrete on the side front slope; construction of a protection arch, i.e. excavating a tunnel face of an upper step tunnel opening, carrying out measure lofting, arranging the section steel frame protection arch from the arch top to the outside of the tunnel in a range of above a springing line and spraying concrete to the protection arch to form protection arch concrete; construction of advance supporting of the double rows of small conduits, i.e. drawing small conduit hole sites which need to be arranged on the tunnel face, then arranging the double rows of small conduits at the small conduit hole sites in the range of an arch part of the opening, carrying out grouting on the arch part by a grouting machine through the small conduits, and blocking off orifices of the small conduits after finishing grouting; and excavation and supporting of a tunnel body, i.e. after the protection arch concrete achieves the design strength and the construction of the double rows of small conduits in a first circle of the tunnel opening is completed, starting the loess excavation and supporting operation of the tunnel body. The method disclosed by the invention has a simple construction process and is easy to operate. The overexcavation phenomenon is effectively reduced. The construction cost is reduced.

The invention relates to the field of grape planting, in particular to a method for planting herbaceous plants between grape rows in a buried soil cold-proof area and application thereof. The method comprises the steps that cold-resistant plants and flowering plants are planted in a mixed manner, wherein the cold-resistant plants are ryegrass and / or lobular trifolium repens, and the flowering plants are dandelions and / or colorful pink. According to the method, the ryegrass and / or lobular trifolium repens and the dandelions and / or colorful pink are planted between the grape rows in the mixed manner, so that the biological diversity is effectively improved, the soil quality and the structural stability are improved, use for many years can be achieved through one-time planting, and subsequentmanagement and protection are not needed. Compared with a traditional method for cleaning and ploughing bare land and planting crops (soybeans), the method for planting the herbaceous plants betweenthe grape rows has the advantages that the volume weight of surface soil can be remarkably reduced, the maximum water-holding capacity of the surface soil and the field water-holding capacity are increased by about 47%, meanwhile, the near-surface wind speed, the soil wind erosion amount and the sand transportation flux are reduced, and the diversity of microorganisms is remarkably improved.

The invention discloses a sand fixation control and planting integrated method for sand land. The method includes: spreading a sand-fixing agent to the surface of the sand land, planting plants on thesand land where the sand-fixing agent is spread to form a grid sand-fixing plant zone, and planting two rows of different crops in grids; planting shrubs or perennial herbs in the prevailing wind direction of one side of the sand-fixing plant zone. By adoption of the sand-fixing agent, sand loss is prevented; by planting of the crops in the grid windbreak sand-fixing plant zone, the vegetation coverage of the sand-fixing plant zone can be increased, effects of wind speed reduction and effective prevention of sand flowing are achieved, and accordingly crop damage caused by wind erosion or sandaccumulation can be prevented.

The invention relates to land reclamation, in particular to a loess tableland region furrow hillside land water accumulation irrigating system, and solves the technical problems of existing loess tableland region furrow hillside land of proneness to collapse caused by water loss and soil erosion due to rainfall in summer and autumn and soil productivity lowering caused by the fact that irrigationwater source needs cannot be met in winter and spring. The system is characterized by comprising a terrace water accumulation unit and a drainage and irrigation system, the terrace water accumulationunit comprises multiple field parcels in stepped arrangement, each field parcel comprises a ridge and a field surface, each ridge is arranged on one side, away from a field parcel of the upper level,of the corresponding field surface, and a drainage ditch is arranged in the middle of each ridge and divides the ridge into an inner ridge and an outer ridge; multiple seeping holes communicated withthe corresponding field surface and the corresponding drainage ditch are formed in the bottom of each inner ridge, and one side, close to the corresponding ridge, of each field surface is away from one side away from the ridge. The invention further provides a building method of the system.