30results about How to "Natural disaster reduction" patented technology

The invention discloses a fiber bragg grating (FBG) testing device and a testing method for rock three-dimensional stress state. The testing device comprises a data processing module consisting of an FBG network demodulator and a computer, three FBG sensors and a substrate for mounting the FBG sensors; the substrate can be deformed with the deformation of rocks; the three FBG sensors are respectively fixed in three-dimensional directions on the surface of the substrate; and the signal output ends of the three FBG sensors are connected with the signal input ends of the FBG network demodulator. The invention can measure the deformation amount of microstrain, so responses can be made in time before rock masses are damaged; the high-precision measurement of three-dimensional stress in rocks can be realized, so that the long-term and effective monitoring for large project rock masses can be realized, and disasters are prevented.

The invention discloses a lightning early warning system based on lightning monitoring devices arranged in a distributed mode. The lightning early warning system comprises a background server or a cloud server, the lightening monitoring devices and a communication module, wherein the lightning monitoring devices are arranged in a region in the distributed mode, and each lightning monitoring device transmits lightning monitoring data to the background server or the cloud server through the communication module. The background server or the cloud server stores and analyzes the lightning monitoring data and generates lightning early warning information. The invention further discloses a lightning early warning method based on the lightning monitoring devices arranged in the distributed mode. By means of the lightning early warning method and system, accurate forecasting can be achieved for the local thunder cloud expected direction and the possible thunderstorm occurrence time, the rate of false forecast and the rate of missing forecast are effectively decreased, the background server or the cloud server of the early warning system can be further checked and modified, and furthermore, the lightning early warning and forecasting accuracy is unceasingly perfected and improved.

The invention relates to a rain collection self-pressure irrigation system for loess plateau hilly area step greenhouses, which comprises greenhouses, ground water collection surfaces, water collection flow gathering ditches, water reservoirs and irrigation pipelines, wherein the greenhouses are arranged on the steps of a terraced field, the ground water collection surfaces, the water collection flow gathering ditches, the water reservoirs and the irrigation pipelines are arranged on the steps, the greenhouses comprise greenhouse ceiling water collection surfaces, the water collection flow gathering ditches are arranged along the lower edges of the greenhouse ceiling water collection surfaces, the ground water collection surfaces are in inclined arrangement, the lower sides of the ground water collection surfaces are connected with the collection flow gathering ditches, one sides or two sides of the water collection flow gathering ditches are provided with the water reservoirs, and the irrigation pipelines are arranged in the greenhouses and are connected with the water reservoirs of the previous steps through main pipelines. The greenhouses are built on the terraced field, the collected rain at the previous step of the terraced field is used for irrigating the greenhouse on the next step of the terraced field, the rain resources are sufficiently and reasonably developed and utilized for developing the facility agriculture, and the ecological system is prompted to be converted to the benign circulation.

The invention relates to a thunder and lightening prewarning system with a honeycomb layout, and the system mainly solves the problem of prewarning precision in the prior art. According to the thunder and lightening prewarning system with the honeycomb layout, single-point thunder and lightening prewarning devices are networked according to the honeycomb layout to perform data integration; the thunder and lightening prewarning system with the honeycomb layout comprises at least three single-point thunder and lightening prewarning devices, a background server and a client terminal; the single-point thunder and lightening prewarning devices are provided with sensors which can monitor physical parameters of the atmospheric electric field value size, direction and change rate within a certain area range and physical parameters of light, electricity, magnetism and sound when thunder and lightening occur and wireless and wire communication function modules. The thunder and lightening prewarning system with the honeycomb layout better solves the problem and can be applied to thunder and lightening prewarning.

The invention discloses a biodiesel raw tree, in particular to a method for high yield, prematurity and dwarfing cultivation of jatropha curcas. Plants with excellent biological and economical properties are selected out of numerous wild jatropha curcas or cultivated excellent variant strains; furthermore, by preferential selection, individual system breeding and artificial cultivation, domestication and breeding for many years, the plants are cultivated to excellent tree species; subsequently, by adopting adaptive tests for many years and multi-technologies, the jatropha curcas bears fruits in the transplanting year and can bear fruits more than five times per year; the oil content of the kernel of the jatropha curcas is 58.2-64.4%, the dry seeds per plant is 2-3kg, the yield per Mu in the transplanting year is 200-300kg (equivalent to the output of general wild adult tree after 3-4 years), and the yield per Mu can achieve 600-1000kg after growing up.

The invention discloses a cultivation method for increasing the yield of Gaza sugar oranges. The method comprises the steps of variety selection, land management, field planting, plant management and disease and pest prevention and cure. According to plant management, plant growth modifier liquid added with water is sprayed before the flower bud differentiation period and during the flower falling period and the fruit expansion period, differentiation of flower buds of the Gaza sugar oranges is promoted during the flower bud differentiation period, flower forming genes are induced, the number of female flowers is effectively increased, stigmas and male flowers are protected, repression is removed, self-pollination or cross-pollination and fertilization are promoted, proline synthesis in crop bodies can be improved, protein denaturation caused by plant cells under the low-temperature and high-temperature states can be avoided, the flowers setting the Gaza sugar oranges are effectively protected from cold injury, and can set fruits normally, and the fruits can be effectively prevented from being scorched by the sun, cracking or shrinking; fruit expansion is accelerated, the fruit shape is lengthened, the effect is remarkable, and the yield of the Gaza sugar oranges is increased.

The invention discloses an LED light source capable of promoting growth and increasing a yield of plant. The LED light source comprises an LED light source body which consists of 18*P LED lamp beads, wherein P is greater than or equal to 1; the LED lamp beads consist of 4*P blue-light LED lamp beads with wavelength of 450 nm-470 nm, 2*P green-light LED lamp beads with wavelength of 515 nm-535 nm, 2*P yellow-light LED lamp beads with wavelength of 580 nm-600 nm, 6*P red-light LED lamp beads with wavelength of 620 nm-640 nm, and 4*P dark-red LED lamp beads with wavelength of 650 nm-670 nm. The LED light source disclosed by the invention is used for prompting growth irradiation of crops, scientific research of crop growth and the like.

The invention discloses an LED light source for accelerating plant growth and increasing yield. The LED light source comprises an LED light source body; the LED light source body consists of 18*P LED beads, P not not smaller than 1; and the LED beads consist of 2*P blue-light LED beads with wavelengths of 450-470 nm, 5*P red-light LED beads with wavelengths of 620-640 nm, 6*P deep-red-light LED beads with wavelengths of 650-670 nm, 1*P peach-light LED beads with wavelengths of 720-740 nm and 4*P white-light LED beads with color temperatures of 2900-3200 K. The LED light source is used for such places as crop growth light compensation for photosynthesis and growth acceleration.

The invention relates to an optimization method of efficient flood preventing power generation in a hydropower station. The method comprises the steps of: dividing the lower course of a river into an upstream part and a downstream part; when a big flood flows through, cutting down the out-reservoir flood peak by adequately using the capacity of the reservoir between a normal water level and a permitted highest flood level; when the flood flows to the downstream for flood detention for 4-5 days, dividing the flood in the upstream and downstream into two parts by the result of flood detention, wherein the original independent flood peak is evolved to a two-peak state which is reduced by half, the water level is reduced much compared with that of the single peak, flood damage of the downstream is reduced, and meanwhile the blood in the flooding process flows to the downstream in the form of generating flow to form a non-flood state. Flood risks are not available in midstream and downstream. The flood control level administrative command can be cancelled, thereby, not only can the natural calamity of flood be reduced, but also blood is adequately used to increase the electric energy production.

The invention relates to a wind power stable generating system which comprises an energy collecting unit, an energy converging and outputting system and a water turbine generating unit. Energy of unstable power sources is collected by the energy collecting unit and converted into energy which can linearly and reciprocally move. The energy converging and outputting system converts the energy which can linearly and reciprocally move into liquid energy with certain pressure and drives the water turbine generating unit to generate power. The energy collecting unit is connected with the energy converging and outputting system which is connected with the water turbine power generating unit. The energy collecting unit comprises a wind power collecting unit. The wind power stable generating system can significantly simplify manufacture technology of the wind power generating system, and is suitable for variation of wind speeds and capable of fully collecting energy in a bearing range of structural strength of a vane. The water turbine power generating unit in wind power stable generating system can fundamentally solve the problem of low voltage ride-through of a power grid of a tradition wind power generating system.

The invention discloses a nutrient soil and application of the soil in sand control and greening. The raw material composition of the nutrient soil comprises: 70-80 parts by weight of advanced anaerobic digestion sludge, 5-15 parts by weight of sludge-based biochar soil, 2-5 parts by weight of carbonized sludge, 2.5-5 parts by weight of potassium fulvic acid, and 5-10 parts by weight of polyacrylamide. According to the present invention, sandy soil nutrient, soil bacterial community diversity, species richness and species composition uniformity are improved, the sandy soil nutrient grade is upgraded from the original level 6 to more than level 2; compared with the original soil, the total amount of nitrogen, phosphorus and potassium in the soil increases by 97.08%, the organic content increases by 119.86%, the water content increases by 65.22%, the quality of sandy soil is significantly improved, and the capacity of soil fertility and water retention are greatly improved; and after the application of the nutrient soil of the invention, the heavy metal pollution degree and potential pollution risk of the soil are both low, and the soil is in a safe state.

The invention discloses an iron ore waste-rock yard land rehabilitation integral regulation method comprising the following steps: cleaning large size rocks and foreign materials on the waste-rock yard land surface, keeping original roads and public & auxiliary facilities, and leveling the waste-rock yard land and slopes and rolling out; keeping and reconstructing original draining systems according to plans, and newly constructing water supply and power supply facilities; building a retaining wall, an apron wall, a waterway, and / or catch water drain on a slope with easy water and soil floating; covering an iron ore open pit mining erosive rehabilitation pile-up topsoil layer with a thickness of at least 40cm on a compacted platform and a slope, leveling and naturally depositing the soil;building a sprinkling facility on a platform, and covering a humus soil of at least 5cm on a planting soil surface layer, and planting city greening normal tree species; digging planting pits with theline spacing of at least 1.5m*1.5m on other platforms and smooth slopes, setting an impervious layer on the bottom, refilling the rehabilitation pile-up topsoil, and finally planting fast-growing forest trees. The iron ore waste-rock yard land rehabilitation integral regulation method is low in rehabilitation cost, high in land treatment rate, and stable in post-rehabilitation geology, and has sustainable benefits.

Provided is a multi-functional vegetable planting greenhouse including a shed and a roof which is provided with multiple jagged ceilings (4), the ceilings (4) have rollable plastic films to form a switchable sunroof, a shade net (1) is provided above the ceiling (4),upward rolling plastic films (3) are arragned at the two sides of the shed, a water curtain system (2) and a fan system (5) are arranged on both ends of the shed. Through the vegetable planting greenhouse, the balanced production throughout the year and stable vegetable prices can be guaranteed, and energy saving, environmental protection, and quality are guaranteed.

The invention discloses an artificial channel drainage sandbeach sedimentation reducing system, and belongs to the technical field of coastal wetland ecological restoration. The artificial channel drainage sandbeach sedimentation reducing system is arranged on the silt beach side of an open sea and comprises a water injection ditch, a drainage passageway, outer walls and a water injection system.The water injection ditch is arranged on the rear land of the silt beach, the water injection system and the water injection ditch cooperate with each other, water is injected into the water injectionditch all the time, the outer walls are arranged on the two sides of the water injection ditch, water in the water injection ditch is drained to sandbeaches on the two sides through the drainage passageway; fine-particle mud in the drainage passageway is started under the action of water flow and moves, the mud is output along with offshore flow in a tide falling period, and sandbeach argillization is avoided. According to the artificial channel drainage sandbeach sedimentation reducing system, the ditch is artificially excavated, and the function of waves and tide is effectively adjusted toreduce natural hazards. Pollution can be effectively degraded through coast wetland restoration, and the primary ecological system and natural balancing mechanism are restored; and by means of ecological restoration, the diversity of the species is improved. A good basis is provided for further construction of leisure tourism inhabiting facilities, and a basis is provided for tourism development.

The invention discloses a gravitational potential energy converting device. A water pump is used for outputting power water and connected with a P port of a hydraulic control two-position four-way valve which is connected with a conversion pump, wherein both end parts of an inner cavity of a valve body of the two-position four-way valve are respectively provided with a hydraulic control port, and quick-trip valves are respectively positioned in the hydraulic control ports; a pump body of the conversion pump is internally provided with negative feedback grooves which are communicated with an upper piston cavity and a lower piston cavity respectively; the negative feedback grooves are communicated with the hydraulic control ports; the upper piston and the lower piston are provided with lug bosses corresponding to the negative feedback grooves; and the conversion pump adopts a rod pressing pump or a rod pulling pump or a pressing and pulling pump structure. The device has compact structure, low cost and high liquid pumping efficiency, is not influenced by the climate and geographical positions, utilizes the gravitational potential energy to carry out the medium conversion to pump liquid of deep stratums and can pump groundwater, crude oil, alkali, acid, salts and combustible ice of the deep stratums.

The invention discloses a method for synthesizing a hydrocarbon from carbon dioxide and water by simulating photosynthesis of green plants. The hydrocarbon comprises the following components in percentage by weight: 0.01-10 percent of nitrogen-containing compound or nitrogen-containing compound and acid compound in the molar ratio 1:1 or amino acid amphoteric compound and the balance of water. The method comprises the following steps of: transforming the compound(s) into an ammonium oxide compound by means of the chemical properties of the compound(s) in an aqueous solution; performing chemical treatment with mixed gas of CO and CO2 to transform ammonium oxide into an ammonium ion compound; undergoing a hydrolysis reaction on ammonium ions and water to form 'photolysis water'; and introducing carbon dioxide, reacting the carbon dioxide with the 'photolysis water', and undergoing a complex chain reaction in a carbon dioxide reducing reaction system to obtain the hydrocarbon serving as a final target product, wherein an alcohol compound with 3-8 carbon atoms is mainly obtained. According to the method, the problem of carbon emission is fundamentally solved; and meanwhile, cyclic application (combustion) of carbon in the industrial sphere is realized, the original carbon cycle is greatly shortened, and the situation of gradual depletion of fossil fuels can be relieved.

The invention discloses a photovoltaic power generation apparatus and a method, which comprises a base, a bracket arranged on the base, a solar panel arranged on the bracket, a horizontally extendingairbag arranged on the base, and a pressing plate arranged on the airbag. A storage box is arranged on the front part of the pressing plate; and a solar panel cover is arranged in the storage box; oneend of the solar panel cover is connected to a reel arranged on the bracket through a rope; the reel is connected to a motor; the other end of the solar panel cover is fixedly connected to the bottomof the storage box; a plurality of balancing weights are arranged on the lower part of the two side edges of the solar panel cover. The photovoltaic power generation apparatus further comprises a controller, and the controller is electrically connected to the motor. The photovoltaic power generation apparatus and the method has the advantages that the safety is good; the self-adaptive capacity ishigh; the influence of natural disasters is effectively reduced; and can be automatically cleaned to ensure the stable of power generation performance of the solar panel.

The invention relates to engineering fields such as ocean, civil engineering, hydropower, wind power, energy, meteorology and climate. The ocean current energy-gathering hydropower station includes an artificially formed energy-gathering flow channel (1), artificial energy-gathering high-speed fluid (20), and energy-gathering fluid power generation equipment (10); an artificial energy-gathering high-speed Fluid (20); the energy-gathering fluid power generation equipment (20) is arranged in the energy-gathering flow channel (1) or the artificial energy-gathering high-speed fluid (20); the artificial energy-gathering high-speed fluid (20) passes through and flows through the energy-gathering fluid to generate electricity The equipment (10); the energy-gathering channel (1) consists of one of the following artificial retaining structures, artificial flow gorge, land channel, artificial coast, artificial seabed, artificial trench, ocean tunnel, ocean pipeline , cable dam (9); cable dam (9) includes the following structural forms, cable buoyancy dam, cable pillar dam, cable airbag dam; energy-gathering flow channel (1) includes the following structural forms, land energy-gathering , cable dam energy-concentrating waterway), Lulian cable dam energy-concentrating waterway, pipeline energy-concentrating waterway, trench energy-concentrating waterway, cable dam energy-concentrating airway.

The invention discloses a preparation process of a zero-carbon wood fiber environment-friendly sheet synthesized by waste circuit board powder. The pressing raw materials of the environment-friendly sheet comprise: circuit board recycled powder, wood fiber powder, a cross-linking agent, a waterproofing agent, and carbon filament fiber; the production process of the sheet comprises the following steps of: drying the circuit board recycled powder at a constant temperature; converting wood fiber auxiliary materials into wood fiber powder above 80 meshes, drying, and then stirring under 180 DEG C to form carbon fiber powder; adding a processing assistant and blending uniformly again; and feeding materials, paving pressing plates, pressurizing, standing, complementing pressure, and gently decompressing to produce the sheet. The pressure during the production process is controlled so that the sheet is stable in quality and high in intensity; the sheet synthesized by wood fiber powder obtained by recycling crop straw, bamboo and wood saw powder and the like with the waster circuit board powder can be sawn, drilled, processed, and shaped easily; furthermore, the sheet is excellent in waterproof and fireproof performances, and high in static bending strength; and the utilization of waste materials reaches the purposes of environmental protection and low carbon.

The invention discloses portable stainless steel personal flexible chopsticks, which are a built-in double-bayonet type slideway locking mechanism formed by a pin roll, a slideway and a compression spring. Before a dinner, the maximum size of the chopsticks can be automatically locked only by pulling out and slightly rotating the food clipping end from the hand holding end; after the dinner, the chopsticks can be shortened to the minimum size according to a reverse operation of the steps after washing so as to facilitate portability. A rear cover of the hand holding end and magnetic steel areconvenient for shaking off residual seeper by a design of reserving a small round hole in the center. A soft body of a protective box is convenient for operation by adopting a soft material. The portable stainless steel personal flexible chopsticks have the advantages of simple structure, reliable performance, sanitation, environmental protection, outdoor carrying convenience, forest destruction reduction and the like, and are significant for environmental protection and personal sanitation.

Disclosed is a stable wave power generating system, comprising an energy collection unit, an energy convergence and output system, and a water turbine power generator set. Energy from an unstable motive power source is collected by the energy collection unit and converted into energy capable of reciprocating linear movement. The energy convergence and output system converts the reciprocating linear movement energy into liquid energy at a specific pressure, and drives the water turbine power generator set to generate power. The energy collection unit is connected to the energy convergence and output system, and the energy convergence and output system is connected to the water turbine power generator set. The energy collection unit comprises a wave energy collection unit. The present power generating system can protect equipment to the maximum, increases service life and reliability, simplifies the manufacturing technology for wind power generating systems, has a greater capability to match changes in wind speed, can fully receive the energy, and can solve the problem of low voltage ride through of a conventional wind power generating system on a power grid.

The invention discloses a precipitation management and control system suitable for the restoration and management of mine ecological environment. , the precipitation control unit includes a slag water storage body, and the slag water storage body is located between the face of the hillside and the water control diversion dam. and the mine platform on the other side, the slag water body is provided with horizontally arranged planting ridges at intervals on the surface. There are square-shaped slag-reducing ridges, and vegetation is planted between the slag-reducing ridges. The invention can reduce the occurrence of natural disasters of soil erosion and debris flow, improve the utilization rate of natural precipitation, and is suitable for the technical field of mine ecological environment restoration.

The invention discloses a method for cultivating dioscorea alata lirm.sp, and relates to the technical field of cultivation and plantation of purple sweet potatoes. The method comprises the followingsteps: after land preparation, carrying out fertilization by virtue of peanut cakes, processing potato seeds, carrying out seedling growing under proper conditions, and carrying out transplantation after buds with the lengths of 1.5cm-2.5cm grow from potato pieces; carrying out ridging before the transplantation: controlling the heights, widths and intervals of ridges, plant intervals and row intervals; carrying out double-row plantation, laying forage, and building a frame among the potato pieces, wherein the frame is used for being climbed by plants of the dioscorea alata lirm.sp; and afterthe dioscorea alata lirm.sp is mature, digging out the dioscorea alata lirm.sp. The method has the advantages that the peanut cakes obtained after oil squeezing of peanuts are taken as an organic fertilizer for replacing common nitrogen, phosphorus and potassium fertilizers, and a small amount of compound fertilizers are added during ridging, so that the production cost of a cultivation techniqueis low; by adding a proper amount of lime during the land preparation and the fertilization, diseases in soil can be prevented and treated, and the looseness of the soil is increased, so that root tubers of the dioscorea alata lirm.sp grow bigger, and the yield is high. Besides, by virtue of a built frame structure, the wind resistance of the plants of the dioscorea alata lirm.sp is enhanced.

The invention discloses a planting pot for roof garden. The planting pot comprises a water storage tank (37) and a water draining tank (34), which are located on the lower layer of a planting pot box body (3), and a planting region which is divided by an isolating panel (2) and located on the upper layer of the planting pot box body (3) for supporting planting matrix; water drainage holes (21) are formed on the isolating panel (2), the stored water in the water storage tank (37) can be delivered to the planting region by a water absorption substance, the water storage tank (37) is in space communication, the water draining tank (34) is communicated with the water storage tank (37) by an intercommunicated groove (32) which is a groove having a set height, a water outlet (33) is formed on the box wall where the water draining tank (34) is arranged, and a mounting part (38) for mounting a water feeding pipe (1) and an irrigation water-feeding device is preset on the planting pot box body (3). The water storage, water drainage, water feeding and water use integrated planting pot for roof garden is effectively provided.

The invention discloses a biodiesel raw tree, in particular to a method for high yield, prematurity and dwarfing cultivation of jatropha curcas. Plants with excellent biological and economical properties are selected out of numerous wild jatropha curcas or cultivated excellent variant strains; furthermore, by preferential selection, individual system breeding and artificial cultivation, domestication and breeding for many years, the plants are cultivated to excellent tree species; subsequently, by adopting adaptive tests for many years and multi-technologies, the jatropha curcas bears fruits in the transplanting year and can bear fruits more than five times per year; the oil content of the kernel of the jatropha curcas is 58.2-64.4%, the dry seeds per plant is 2-3kg, the yield per Mu in the transplanting year is 200-300kg (equivalent to the output of general wild adult tree after 3-4 years), and the yield per Mu can achieve 600-1000kg after growing up.

The invention discloses an artificial ditch drainage beach silt reduction system, which belongs to the technical field of ecological restoration of coastal wetlands. The land behind the beach, the water injection system cooperates with the water injection ditch to always inject water into the water injection ditch, the outer wall is on both sides of the water injection ditch, the water in the water injection ditch drains to the beaches on both sides through the drainage channel, and the fine particles in the drainage channel The mud starts and moves under the action of the water flow, and is exported with the rip current during the low tide period to prevent the beach from becoming muddy. The invention effectively adjusts the effects of waves and tides through artificially excavated ditches to reduce natural disasters; coastal wetland restoration can effectively degrade pollution and restore the original ecological system and natural balance mechanism; and increase species diversity through ecological restoration. It provides a good foundation for the further construction of leisure and tourism habitat facilities, and provides a foundation for the development of tourism.

The invention discloses a land reclamation comprehensive treatment method for an iron ore waste rock field, which includes cleaning up large-sized stones and sundries on the waste rock field surface, retaining original roads and public auxiliary facilities, and leveling the waste rock field site and side slopes and flatten; retain and renovate the original drainage system and build new water supply and power supply facilities according to the plan; set retaining walls, toe walls, drainage ditches and / or intercepting ditches on slopes prone to water and soil flow; The platform and side slope of the platform shall be covered with at least 40cm-thick reclaimed topsoil stripped from open-pit mining of iron ore, and it will naturally settle down after leveling; sprinkler irrigation facilities shall be built on the platform, and the surface layer of cultivated soil shall be covered with humus soil of at least 5cm to plant urban greening Commonly used tree species; excavate tree planting pits with a row spacing of at least 1.5m×1.5m on the remaining platforms and gentle slopes, set an anti-seepage layer at the bottom, backfill and reclaim topsoil, and finally plant fast-growing trees. The invention has the characteristics of low reclamation cost, high land treatment rate, geological stability after reclamation and sustainable benefits.

The invention discloses a method for preventing and controlling diseases and insect pests of olea europaea. The chemical prevention and control method which is normally adopted for the prevention andcontrol of the diseases and insect pests of the olea europaea at present is to spray a chemical agent before the occurrence of the diseases and at the initial stage of the diseases. The method comprises soil sterilization, nursing and agent spraying. The specific steps are as follows: (A) soil sterilization: quick lime and carbendazim are uniformly mixed at a ratio of 100:(4 to 6) and sprayed intosoil of a plow layer; (B) nursing: in November each year, lime powder and a lime sulphur are mixed at a ratio of 50:(6 to 8) and then added with water which is eight to ten times the amount, the mixture is sprayed onto the leaves and branches of the olea europaea, and the quick lime is spread onto the surface of soil layer and uniformly mixed with the soil; (C) agent spraying; (D) treatment ofdiseased trees; (E) pruning. The method can reduce the usage amount of pesticides and varieties of high-toxicity pesticides, promote the growth and development of trees while controlling the diseasesand insect pests of the olea europaea, increase the yield and quality of the olea europaea, reduce the amount of pesticide residue of the olea europaea and increase income per unit area.

The invention relates to use of chitosan oligosaccharide and its composition in crop growth restoration after frost damage, and specificallyprovides the use of a pesticide composition comprisingchitosan oligosaccharide for crops to resist frost. The use provided by the invention is characterized in that the pesticide composition comprises 0.0035% to 0.23% by weight of chitosan oligosaccharide. The use anda method of chitosan oligosaccharide to restore crop growth after frost or freeze damage provided by the invention solve the problem that at present there is no effective measure for restoring crop growth after frost or freeze damage, playing an important role in reducing the effect of natural disasters on crops.