141 results about "Warm season" patented technology

An improved solution for cooling a data center is provided. In an embodiment of the invention, a data center design that combines physical segregation of hot and cold air streams together with a data hall variable air volume system is provided. The invention is a data center design that resolves air management issues of re-circulation, bypass and load balance. Bypass is airflow supplied by the cooling units that directly returns without cooling servers. Recirculation airflow is server discharge warm air that returns directly without being cooled. Load balance is supplying the required server airflow. An embodiment includes physical segregation of cold and hot air streams and by providing variable air volume to match server load. Air segregation is done by enclosing the hot aisle end and above the cabinets. The air conditioning system provides variable air volume to the data hall (cold side) to meet server demands. The cooling plant consists of variable-air-volume air-cooling system, which cools air by air free cooling (economizer) and is supplemented with mechanical cooling in the warmer seasons.

The present invention discloses one kind of high performance heliogreenhouse with low building cost and running cost, and features the complete central air conditioner structure, effective utilization of solar energy and capacity of producing warm season vegetable, fruit and flower in wide area including up to 40 north latitude. The present invention may be also used in producing edible fungus and raising animal simultaneously to raise the soil utilization rate.

The invention discloses a data center cooling system and a data center cooling method. The data center cooling system comprises a data hall, a ceiling static pressure chamber, an overhead floor static pressure chamber and an equipment room, wherein a plurality of information technology cabinets with servers are arranged in the data hall; and the space from the upper ends of the information technology cabinets to the ceiling static pressure chamber is surrounded by sealing plates to form enclosures. A data center is cooled by an air treatment unit, and the air treatment problems about air recirculation, bypassing and load balance are solved by combining a data center variable air rate system. A blowing device supplies a variable air rate to the data hall (cold side) to meet the demands of the servers. The air treatment unit comprises a variable air rate air-cooling system, and cold air is supplied through fresh air refrigeration and complemented through mechanical refrigeration in warm seasons.

The invention provides a method of mixed planting of cool-season turf grass and warm-season turf grass, which includes: sowing seeds of Zoysia japonica and seeds of tall fescue according to a proportion of 1:1; sowing the seeds of Zoysia japonica prior to the seeds of tall fescue; and setting seeding quantity of each type of the seeds to be 15g / m2 at the temperature of 30 DEG C to 35 DEG C. By the method, the problem that the warm-season turf grass is withered and yellow in winter, short in green period, difficult to overwinter and the like is solved, the problem that the cool-season turf grass tends to wither in summer, tends to hibernate, is susceptible to diseases and the like is also solved, quality of turf in transition areas is improved, and management cost is lowered.

The invention discloses the application of a thermal pipe-crushed stone protection slop composite roadbed with the functions of temperature reduction and thermal insulation in a broad width high-grade road. The composite roadbed comprises sealed L-shaped thermal pipes, crushed stone protection slops, insulating layers and roadbed filling, wherein the crushed stone protection slops are laid on side slopes on both sides of the roadbed until reaching a natural earth's surface; the L-shaped thermal pipes are embedded in the roadbed filling, and ammonia or nitrogen is used as working media in the pipes; and the insulating layers are embedded in the underground roadbed filling. By utilizing the changes of angles of the condensation segments and the evaporation segments of the L-shaped thermal pipes in the roadbed, the composite roadbed lowers the temperature of soil bodies under the center of the roadbed; and by combining the advantages of the crushed stone protection slops and the thermal insulating layers, the composite roadbed increases the cold energy suction volume in a cold season and effectively controls the heat absorption capacity in a warm season, thereby realizing the temperature reduction of the underlying soil bodies of the broad width high-grade roads, balancing a temperature field, increasing the upper limit of frozen soil, and meeting the special requirement of roadbed stability of perennial high temperature permafrost regions.

The geothermal system uses an outer and an inner pipe installed in a single borehole. Cool fluids are pumped down through one pipe and returned to the surface through the other pipe. Subterranean heat increases the temperature of the cool fluid and this heat is returned to the surface where the heated fluid is recovered. The fluid with the heat removed is then pumped back down the borehole to be re-heated. Extra heat recovered from the ground surrounding a lower portion of the borehole is stored in the ground and rock formation surrounding an upper portion of the borehole during warmer seasons to optimize the amount of heat stored in the ground for extraction during colder seasons.

The invention is applicable to fields of air conditioners and provides a combined multi-source earth-energy central air-conditioning unit. The central air-conditioning unit comprises a primary heat exchanger, a secondary heat exchanger and a heat recovery system which are connected with other parts of a central air conditioner through pipes, wherein the primary heat exchanger, the secondary heat exchanger and the heat recovery system are serially connected through pipes. With the technical proposal, the central air-conditioning unit can use earth source and air source as cold and heat sources and uses the primary heat exchanger and the secondary heat exchanger to achieve a double cooling effect in cooling seasons and uses only the secondary heat exchanger in warming seasons with higher heat exchange efficiency, thereby overcoming the problem of limitation in the use of cold and heat sources and low heat exchange efficiency of earth source heat and air source heat pumps in the prior art. The central air-conditioning unit is also provided with a heat-recovery heat exchanger, so as to enable a user to make hot water for daily use during use of the air conditioner and bring great convenience in use of hot water in daily life.

The invention belongs to the technical field of animal husbandry, and specifically relates to a method for the ecological captive breeding of goats. According to the method for the ecological captive breeding of goats, a pasture planting base and a sports ground are established, wherein the pasture planting base is used for planting high-yield and high-quality pastures which are used as the feed sources of the captive goats, and the sports ground is used as a sport field for the goats; furthermore, the goat manure and urine in goat pens are collected to make organic fertilizer which is used for the planting fertilization of the pastures; one third of the pasture planting base is used for planting perennial pastures; and two thirds of the pasture planting base is used as an annual pasture planting area which is used for the crop rotation of cold-season and warm-season pastures. According to the method provided by the invention, the obvious conflict of land scramble between the breeding industry and the mountain planting industry is effectively solved and the mountain economic crops are not damaged by the grazed goats any more, so that the safe production is realized, the orderly development of the whole large-scale agriculture is promoted, sustainable development is obtained and eco-friendly development is realized.

The invention discloses application of a transparent wall vent pipe-massive crushed stone layer cooling and insulating composite road bed in a wide road. The structure of the road bed consists of a transparent wall vent pipe, a massive crushed stone layer, geotextile, an insulating layer and road bed filling soil; the massive crushed stone layer is paved on a compacted natural ground surface; the transparent wall vent pipe is embedded into the top of the massive crushed stone layer; and then, the geotextile, the insulating layer and the road bed filling soil are paved on the massive crushed stone layer in turn. By using the transparent wall vent pipe, the temperature of the top of the massive stone layer is reduced, the temperature difference between the upper and lower boundaries of the massive stone layer is increased, natural convection of the massive stone layer in a cold season is enhanced, and the cold energy absorption amount of the road bed in the cold season is improved; and by combining the heat insulation property of the insulating layer, the absorption amount is effectively controlled in a warm season, and the net heat release amount of the road bed in a freezing and thawing cycle is greatly improved so as to realize reduction of underlying soil temperature of the wide high-grade road bed, balance the temperature field, promote the upper limit of frozen soil and meet the special requirement of stability of the wide high-grade road bed in a high-temperature permafrost.

The invention discloses a method for maintaining the thermal stability of a permafrost foundation, which adopts solar adsorption refrigeration technology comprising the following steps: a, determining the thickness of a seasonal active layer of the permafrost foundation; b, burying a high-thermal conductivity material; c, burying and installing the solar adsorption refrigeration device; and d, exchanging heat in the foundation into the air with the solar adsorption refrigeration device so as to reduce the temperature of the permafrost foundation and maintain the thermal steady state. The invention also discloses the solar adsorption refrigeration device for use in combination the method, which comprises a solar thermal collector and a foundation evaporator, wherein the foundation evaporator is buried underground; and the upper end of the foundation evaporator is connected with absorption and desorption gas ducts which are connected through each pipeline and are connected with the solar thermal collector respectively. The method of the invention effectively relieves the influences of global warming on the permafrost foundation. The device of the invention is strong in practicability, simple in structure and conveniently buried, and can solve the problem that a thermal rod cannot work in warm seasons.

A warm-season lawn grass winter green-maintaining growth-promoting agent and a method for making the same relate to a plant green-maintaining growth-promoting agent, providing a warm-season lawn grass winter green-maintaining growth-promoting agent capable of increasing chlorophyll content and overground biomass, reinforcing cold resistance and prolonging green period and a method for making the same. The growth-promoting agent comprises an A component, a B component and a C component, wherein the A component is a paclobutrazol triacontanol aqueous solution containing a latent solvent; the B component is a chitosan acidic aqueous solution; and the C component is proteolysis product quick-acting fertilizer. The method is as follows: paclobutrazol powder is dissolved in the latent solvent, and triacontanol and water are added so as to obtain the A component; chitosan and water are added in an acidic latent solvent, thereby obtaining the B component; and proteolysis product is dissolved by water, and then urea, potash magnesium sulphate fertilizer and water are added so as to obtain the C component.

The invention discloses a method for maintaining and reproducing an evergreen lawn. The method includes technological steps of (1), selecting a warm-season lawn green land and determining rejuvenation and maintenance time of a lawn; (2), taking rejuvenation and maintenance measures; (3), manufacturing a cold-season soil-free grass carpet; (4) selling the cold-season soil-free grass carpet and restoring the growth of the warm-season lawn. The method has the advantages that the built lawn is rejuvenated and maintained on the same lawn area, the new lawn with the area one to two times that of the built lawn is reproduced simultaneously, accordingly, the green period of the built lawn is prolonged, the new lawn with the large area is reproduced, and a novel mode for maintaining and reproducing the evergreen lawn is formed; the land productivity is high, the production cost is low, and economical, social and environmental benefits are obvious; as observed by tests, manufacture of the soil-free grass carpet rarely affects the lawn of the green land, and the growth of the lawns is unaffected even if dormant periods in different years are properly shortened.

The invention relates to an evergreen mixing lawn consisting of cynodon dactylon and kentucky bluegrass and the planting method of the lawn. The natural characteristics of the cold-season kentucky bluegrass and the warm-season cynodon dactylon are utilized, the characteristics that the kentucky bluegrass has underground rhizomes and the cynodon dactylon has the growth habit of growing surface runners are utilized, and the mode that the seeds of the kentucky bluegrass are reseeded on a cynodon dactylon lawn or the rhizomes of the cynodon dactylon are inserted on a kentucky bluegrass lawn to build the mixing lawn. The two plants forming the mixing lawn can naturally circulate, the cynodon dactylon mainly grows and the kentucky bluegrass rests as underground rhizomes in summer, auxiliary buds of the rhizomes of the kentucky bluegrass grow upwards to get through the surface runners of the cynodon dactylon to form plants to take place of the cynodon dactylon before the cynodon dactylon turns yellow in august, the kentucky bluegrass grows in winter and the cynodon dactylon rests as surface runners, the surface runners of the cynodon dactylon germinate in the next spring to gradually take place of the kentucky bluegrass, and thereby that the lawn is evergreen is realized.

The invention provides a cultivation method of mixed-lawn, providing the cultivation method of novel mixed-lawn, which solves the problems of high maintenance cost and high consumption of the water, nutrient and energy for the cold season lawn, as well as the problems of short green stage, poor greening effect and difficult cultivation for the warm season lawn through the mixed-lawn method of the stalked meadow grass which is the cold season lawn grass and the zoysia which is the warm season lawn grass, and the process of preparing, snowing, maintaining the seedling, pruning, managing the finished lawn and the like.

The invention is suitable for a separate hydraulic / geothermal energy cold and hot domestic hotwater integrated central air-conditioning unit, which comprises a compressor, a heat-recovery heat exchanger, an electromagnetic four-way reversing valve, a separate hydraulic / geothermal energy heat exchanger, a one-way valve, a thermostatic expansion valve, an electromagnetic valve, a drying drier, an air-conditioning side heat exchanger and a vapor-liquid separator which are connected in series through pipelines. According to the invention, water or soil is used as a direct cold and hot source of acoolant, the heat exchangers which are dispersedly arranged on in the water body or soil are used as condensers in the refrigerating season and used for directly refrigerating the coolant to release heat; the heat exchangers which are dispersedly arranged in the water body or soil are used as evaporators in the domestic hotwater making and warming seasons and used for directly evaporating the coolant to absorb heat; and therefore the heat exchanging efficiency is greatly improved. According to the invention, a long-distance fluorine path is initiatively and directly condensed or evaporated inthe water or soil, therefore the land and water resource occupying area mass and the engineering cost are greatly reduced, and the limit to the use of a heat pump from the geological and hydrologicalenvironment is thoroughly broken through.

The invention discloses a four-season-evergreen golf lawn cultivation management and protecting method. The four-season-evergreen golf lawn cultivation management and protecting method comprises the following steps that fertilizer consumption amount and water consumption amount of a warm-season type lawn are reduced before seeds are sown on a lawn, and low trimming is conducted on the warm-season type lawn; cold-season type grass seeds are selected, a seeder is used for carrying out sowing, and uniform velocity of sowing is ensured; the lawn after sowing is slightly pressed and is covered by a sandy-soil layer; water is sprayed on the lawn; the water spraying depth that water soaks a soil layer with depth of 5-10centimeters is preferred, the water is sprayed in the morning and at night once respectively, and the water is sprayed 20 to 30 minutes every time; when two to four leaves of a grass are grown, nitrogen phosphorus and potassium compound fertilizer is implemented; when the grass length is 5-centimeter long, a first trimming is conducted, and then the trimming height is gradually reduced. The four-season-evergreen golf lawn cultivation management and protecting method solves the winter green-fading problem of the lawn, the lawn is made to be good in ornamental value in winter to achieve the four-season-evergreen ornamental effect, and smooth transition of the cold season and the warm season and natural joining of the cold season and the warm season are achieved, and the four-season balanced viewing effect is achieved.

The invention provides a warm-season lawn overseeding method and belongs to the technical field of lawns. The method includes the steps of overseeding time setting, wherein reseeding of cold-season grass seeds is conducted on a warm-season lawn from late September to early October, and the cold-season grass seed overseeding amount is 20-35 g / m<2>; preparation of a turf bed; sowing; sand laying; irrigation; rolling; pruning; fertilizer application; weeding; disease prevention; maintenance. According to the warm-season lawn overseeding method, reseeding is conducted on the warm-season lawn by means of the cold-season grass seeds, proper overseeding time and overseeding amount are selected, and the lawn is formed quickly by taking the measures of turf bed preparation, sowing, irrigation, pruning, maintenance management and the like, so a good athletic lawn is obtained while the warm-season lawn is dormant in winter; by means of water and fertilizer control, the cold-season grass and warm-season grass are successfully converted in June and July, and accordingly the lawn remains green throughout the year.

The invention provides a technique utilizing forage grasses to treat pig farm sewage, the technique introduces warm-season perennial gramineous forage grasses and cool-season annual gramineous forage grasses for year-round planting and for treating sewage in pig farms; and the produced forage grasses are directly fed to pigs or added into mingled forage by different proportions after pulping for breeding pigs at different stages. The technique combines the pig farm pollution treatment technique and forage grass planting, and rationally utilizes culture wastes to develop the grass industry, change waste into valuables, realize the beneficial cycle of pig raising-biogas slurry-forage grasses, reach zero release of sewage in the breeding industry, and avoid the pollution of sewage to the environment in the breeding industry, and the forage grasses grown on the grassland have advantages of good quality, high output and obviously reduced production cost, and the forage grasses produced by adopting the method are used in animal husbandry, the costs for breeding livestock are also reduced obviously, the sewage treatment in pig farms can be realized, functions of forage grasses in environmental ecological safety and bioremediation can be achieved, and the technique has broad application prospect and outstanding economic benefit and environmental protection value.

The invention discloses a lawn protecting method adaptive to climatic change in high frigid grassland regions, and relates to a technology of ecological restoration and high frigid grassland climatic change adaptation. The method comprises the following steps of: dividing a grazing grassland into three parts according to the grassland utilization mode, namely a warm season grazing region, a drop spraying irrigation region and a low shed drop irrigation region; performing fencing and rotational grazing on the three parts respectively; irrigating the grassland by using rive and lake water and warm season rainfall and combining a water-saving irrigation technology; performing reseeding, harvesting and storage or shed opening and rotational grazing on the grass of the drop spraying irrigationregion and the low shed drop irrigation region according to the climatic conditions; and determining the irrigation quantity according to the local climatic change condition, namely the difference between the rainfall precipitation and the grass demand quantity, and determining the climatic change adapting capability of the method. The method can solve the problems that edible grass for livestockin dry seasons is reduced, the meadow area in the dry seasons is small, and the grassland is destroyed by livestock and the like; and the productivity of the grassland in summer and the livestock bearing quantity are improved, recovery and protection of the ecological environment are realized, and the method is an effective measure for making the high frigid grassland regions adaptive to the climatic change.

A method for preparing a three-dimensional floating bed used for purifying eutrophic water source is characterized in that the three-dimensional floating bed made of mao bamboo is divided into an upper water surface plant growing area and a lower underwater artificial medium area; in warmer seasons, in the plant growing area, a nylon net is spread on the floating bed for growing water spinach; incolder seasons, in the plant growing area, apart from spreading the nylon net on the floating bed, a piece of non-woven fabrics is also paved for growing ryegrass; the framework of the three-dimensional floating bed consists of mao bamboo pieces with diameters ranging from 6-8 cm, mao bamboo pieces with diameters ranging from 2-3 cm, nylon ropes and elastic fillers; and in the artificial medium area, the elastic fillers are stringed by the nylon ropes and then fixed on the mao bamboo pieces at an upper sash and a lower sash of the three-dimensional floating bed. The method has the advantages that the floating bed has a simple structure, is convenient to prepare, uses easily-accessible raw materials, has low cost, can satisfy the four-season growing requirement, has great buoyancy and achieves good effect in treating eutrophic water body; and the three-dimensional floating bed can lead to the harvest of a certain amount of agricultural byproducts and is favorable for generalization.

The invention discloses a cell box heating and motor radiating device of an electric automobile, and the device mainly comprises a cell box, a radiator, a water pump, a water feed pipe, a water return pipe and a motor, wherein an insulation layer is arranged on the wall of the cell box. In winter, the radiator is located in the cell box, the heat radiated by the heating motor is provided to the radiator by the water feed pipe and the water pump so as to heat the cell box through the radiator to increase the temperature of the cell box to protect the cell, avoid the excessive power consumption of the cell caused by over low temperature and increase the continuous travelling mileage. In warm seasons, the radiator is located outside the cell box, and the radiator is used for radiating to protect the motor, improve the working efficiency and prolong the service life of the motor.

The invention discloses a phytocidal composition. The mass ratio of effective components including topramezone and halosulfuron-methyl in the phytocidal composition is (1-50):(50-1), the total mass of the effective components including the topramezone and the halosulfuron-methyl in the phytocidal composition accounts for 1-80% of the mass of the whole preparation, and the remaining components of the phytocidal composition are auxiliary components allowably used and received in pesticides, and the dosage form of the phytocidal composition is missible oil, suspending agent, wettable powder, water dispersible granule, emulsion in water, microemulsion, granula, and microcapsule. The phytocidal composition is mainly used for preventing and extirpating annual warm-season gramineous weeds, broad leaf weeds and sedge weeds in wheat, corn, rice, sugarcanes and lawns.

A planting method of shade-tolerant turf chracterized in that a warm season turfgrass--- Augustinegrass (Stenotaphrum helferi Munroex Hook.f.) with great shade-tolerance and trampling resistance is chosed, and which seeds or seedling is suitable,but seedling is preferabe. The invention has the advantages that: first, Augustinegrass has great shade tolerance and keeps normal growth in the condition that 90% is shaded off; second, in the condition that less than 80% is shaded off, the more are shaded off, the bright greener Augustinegrass grows; third, Augustinegrass is originally planted in hainan and other places in our country and is easy to be planted, to survive, and to be managed, which forms densed turf in a short time; fourth, it is no need to fertilize Augustinegrass which has acid-tolerance and slim-tolerance, besides it is scarcely to have pest and disease damage; fifth, Augustinegrass will not spread around with a little management, so it will not become a poisonous weed.

The invention discloses Qinghai-Tibet plateau high-cold pasturing area greenhouse pasture planting technology which comprises the following steps: (1) a greenhouse is prepared; (2) grass seeds and base fertilizers are respectively mixed standby; (3) ploughed fallowing is carried out; (4) preparation before broadcast sowing and planting is carried out; (5) a ditching method is prepared; (6) sowing is carried out; (7) soil is covered manually and smoothed, and manual suppression is carried out; (8) preparation before a rainy season comes is carried out; (9) treatment of 7-8 months at a high temperature is carried out; and (10) mowing and overwintering treatment are carried out. The Qinghai-Tibet plateau high-cold pasturing area greenhouse pasture planting technology integrates annual grass cultivation, perennial grass cultivation and cold season-warm season grass cultivation, is strong in flexibility and adaptability, simple, easy to operate, and low in cost, is the technology which is popularized and used by nations and local residents, provides a technological approach for forage grass production of extreme high altitude areas in China, and provides technological support for grass supply.

A hog farrowing system for use in a cold environment includes a building providing protection from weather elements. The farrowing boxes have an entrance to permit free ingress and egress of female hogs but restrain the piglets. An alley is provided outside the boxes for the female hogs to defecate, urinate, and move to feed and water stations outside the boxes. The boxes have sides which define an inner chamber, a heat system, bedding for the female hogs to nest, and insulation covering an open top during cold environment conditions. The method utilizes the steps of promoting the female hog to utilize natural instincts, promoting the female hog to give birth to piglets close to the heat source, and protecting the piglets from crushing by using a creep area, anti-crush rods and anti-crush boards. The farrowing boxes can be modified for use in a warm season.

The invention discloses a plant lactobacillus and an application thereof in the ensilage of warm-season forage, and belongs to the field of processing and storage of forage. The provided strain (LP1) is named as Lactobacillus plantarum. The preservation number of the strain in the China General Microbiological Culture Collection Center (CGMCC) is CGMCC No. 10473. The plant lactobacillus is separated from natural herbage silage and is a novel strain of plant lactobacillus. The biological additive prepared from the plant lactobacillus and cellulase can prominently improve the fermentation quality of ensilage of warm-season forage, has the advantages of high efficiency and no pollution to the environment, does not have any adverse influence on livestock, can be easily mastered during the addition process, and can be widely used in the field of warm-season forage silage preparation.

An improved solution for cooling a data center is provided. In an embodiment of the invention, a data center design that combines physical segregation of hot and cold air streams together with a data hall variable air volume system is provided. The invention is a data center design that resolves air management issues of re-circulation, bypass and load balance. Bypass is airflow supplied by the cooling units that directly returns without cooling servers. Recirculation airflow is server discharge warm air that returns directly without being cooled. Load balance is supplying the required server airflow. An embodiment includes physical segregation of cold and hot air streams and by providing variable air volume to match server load. Air segregation is done by enclosing the hot aisle end and above the cabinets. The air conditioning system provides variable air volume to the data hall (cold side) to meet server demands. The cooling plant consists of variable-air-volume air-cooling system, which cools air by air free cooling (economizer) and is supplemented with mechanical cooling in the warmer seasons.

The invention discloses a method for cultivating evergreen lawn quickly. According to the method, the lawn is established by planting two types of grass, namely warm-season type grass and cool-season type grass, in a mixed mode according to different growing periods so that the green period of the lawn can be prolonged, non-woven fabric is laid before sowing, through the underground film covering mode, underground weeds can be sealed and prevented from entering the growing area of the lawn, the circumstance that the weeds and the lawn grow simultaneously is prevented, the weeds are prevented from adversely affecting the normal growth and reproduction of the lawn, and cost for removing the weeds can be greatly reduced.

The invention discloses a house feeding goat warm shed, and the main structure thereof is a shed cover which is divided into a soft shed cover and a hard shed cover, wherein rafters at the hard shed cover are sequentially laid with a mat, grass and a roof made of mud, the soft shed cover is formed by covering arched steel pipes with a shed plastic film; the front wall and the rear wall, and the left gable and the right gable of the warm shed are provided with intake elbows, and the highest part of the shed cover is provided with an exhaust elbow. The house feeding goat warm shed eliminates various adverse effects of the conventional goat shed on the goat body, can regulate the temperature and the moisture inside the warm shed by controlling air input and air displacement according to the requirements in cold and warm seasons, and can be further used for limiting sunshine manually and promoting the cashmere improvement of goats. The house feeding goat warm shed is applicable to wider raisers in rural pastoral zones, and has significant effects on alleviating the pressure of grazing pasture, protecting ecology and reducing the excessive consumption of fodder.

The invention discloses a building and planting method of an evergreen lawn. The method comprises the following steps: 1, carrying out grass thinning on warm-season type grass in a cross direction for two times, and scarifying the withered grass layer of a warm-season type lawn; 2, carrying out low trimming on the warm-season type lawn two to three days earlier when roegneria kamoji seeds are reseeded; 3, reseeding the roegneria kamoji seeds, wherein the seeding rate is 5-10 grams / square meter; 4, immediately performing sand covering after sawing, wherein the sand covering thickness is 1-3mm; 5, performing flattening after the sand covering; and 6, carrying out irrigation to keep soil moist until seedling emergence and lawn formation. The method provided by the invention has the following advantages: the quality of the lawn in four seasons is good, the grass does not have obvious insect diseases, the maintenance is simple, more ecological and safer, the maintenance cost is low, and compared to conventional rye grass commonly used in a climate transition region, the workload is lower, and roegneria kamoji dies more quickly through application of an N fertilizer.