50results about How to "Improve the quality of the ecological environment" patented technology

The present invention relates to one new kind of Shewanella decolorationis and is Shewanella decolorationis CCTCC M 203093. By means of the separation and purification of the active sludge in the waste water treating system of Guangzhou printing and dyeing plant, one new kind of Shewanella decolorationis is obtained. The Shewanella decolorationis can degrade dye in waste printing and dyeing water effectively, raise waste water treating efficiency and improve water ecological environment quality.

The invention discloses a cloud based irrigation district water-saving irrigation decision-making support system. The system comprises a cloud server, wireless data transmission modules, single chip microcomputers, sensors and a gate, and the cloud server comprises a database and a webpage. Decision-making steps of the system include: setting up the database, carrying out multi-point measurement of paddy field moisture and water level of a district to be measured, and storing average data in the database; automatically capturing data of an official weather forecast website, storing the data in the database, and using temperature data for estimating water requirement of crops; according to measured data and a corresponding water balance model, computing to judge whether irrigation is needed or not, and if so, determining irrigation amount and irrigation time; and enabling the webpage to be capable of serving as a data display terminal and a lower computer control terminal. The irrigation district water-saving irrigation decision support system is set up on the basis of the cloud server, data is transmitted through a mobile network, and accordingly data transmission range can be enlarged, and irrigation district informatization management level is improved.

The invention relates to an ecological restoration method for a damaged seacoast wetland, and belongs to the field of wetland vegetation recovery. The ecological restoration method comprises the following steps: (1) selecting a restoration area to carry out living condition research; (2) restoration of a sinking type erosive seacoast wetland: establishing a flood bank and a broken water peninsula, carrying out dredging mud covering, and establishing a tidal channel and a gentle slope; (3) building a wetland plant community, wherein wet plants comprise aquatic plant and halophilous plant, and sowing and trophosome transplanting combined planting; (4) establishing an ecological isolation belt: planting trees and shrubs and emergent aquatic plant in the peripheral range of 2 to 4 m in the wetland as the ecological isolation belt; (5) scientifically controlling the growth of Spartina alterniflora Loisel: controlling the growth of Spartina alterniflora Loisel via water quantity control, and manpower and machine harvesting and burying. Dredging mud is used for ecological restoration of the damaged seacoast wetland, the erosive seacoast wetland can be reinforced, the sediment is effectively stabilized via the construction of the wetland plant community, a diversified environment is created, and the ecological environment quality of the seacoast wetland is improved.

The invention discloses a coastal wetland vegetation restoration method. The coastal wetland vegetation restoration method comprises the following steps that 1, an area to be restored is determined, habitat surveying is performed; 2, fences are built around wetland critically degenerated and lightly degenerated for enclosure and livestock reduction; 3, on the basis that an original whole foundation structure of wetland is not destroyed or transformed, local terrain restoration or protection is conducted on regions mediumly degenerated and severely degenerated to achieve wetland habitat building and improvement; 4, restoration of subsided and erosive coastal wetland is performed in the regions mediumly degenerated and severely degenerated; 5, wetland plant communities are built; 6, ecologicisolation belts are built; 7, smooth cordgrass growth is scientifically controlled. Ecological restoration of damaged coastal wetland is performed by using dredged soil, erosive coastal wetland can be reinforced, sediment can be effectively stabilized by building wetland plant communities, a diversified habitat is created, and the ecological environment quality of coastal wetland is improved.

The invention discloses a multi-opening intelligent irrigation system and method for rice fields. Sensors in the system are distributed in all rice field pieces and connected with a control device. The other end of the control device is connected with an electric regulating valve. A water conveying pipeline is connected with a water source and perpendicular to ridges. A water pump and the electric regulating valve are installed in the section between the water source and the rice fields. The multi-opening intelligent irrigation system and method have the advantages that a traditional irrigation system is abandoned, an irrigation system is determined according to actual water requirements of crops, and therefore the utilization rate of water resources can be increased, agricultural water consumption is lowered, and the ecological environment quality of farmlands can be improved; the irrigation management level is improved, extensive manual operation is changed, labor consumed during irrigation is reduced, automatic water control is achieved, management cost is reduced, and benefits are remarkably improved; rapid irrigation can be achieved, all rice field pieces can be independently irrigated at the same time, water does not need to flow from one rice field piece to another rice field piece, and therefore irrigation can be uniform, and yield consistency and total yield are increased.

The invention relates to a new strain golden Brevibacterium strain AN3 CGMCC No.2193, and application thereof in degrading triphenyl methane dyes and azo dyes such as malachite green. The golden Brevibacterium strain AN3 is obtained by separating and purifying activated sludge in an anaerobic baffled reactor system used for treating printing and dyeing wastewater by an research institute in Guangzhou, can degrade the triphenyl methane dyes in a mode of benzene ring detoxication under a facultative anaerobic condition that the temperature is between 25 and 37 DEG C and the pH value is between 6.0 and 8.5, and has significant capability on degrading the prior triphenyl methane dyes and azo dyes such as the malachite green which bring about serious pollution to aquatic products and are used in the form of a fungicide, wherein the removal rate of the golden Brevibacterium strain to the malachite green with the concentration of 50 milligrams per liter is 61.4 percent in 8 hours and is 97.3 percent in 16 hours, and the highest tolerable concentration thereof is 500 milligrams per liter, so that the strain golden Brevibacterium strain can effectively solve the problems of pollution and purification caused by the malachite green in an aquaculture environment.

The invention discloses a non-point source pollution online monitoring and early warning method in a county territory. The non-point source pollution online monitoring and early warning method includes the following steps that step one, multi-environment monitoring is performed; step two, monitoring data summary transmission is performed; step three, a remote monitoring center is set up; step four, information management and decision is performed; in the step 1, multi-environment monitoring includes the following steps of establishing an outdoor water quality monitoring station, establishing afarmland runoff monitoring station, establishing a microclimate monitoring station, establishing a soil moisture monitoring station and establishing a hydrological monitoring station. The non-point source pollution online monitoring and early warning method combines the Internet of Things, big data and a GIS geographic information system with non-point source pollution, the development of non-point source pollution modeling is accelerated, and the quantitative and precise trend of non-point source pollution is promoted; the monitoring intensity and early warning capability of non-point sourcepollution are greatly improved, and feasible methods and means for solving the increasingly prominent contradiction between economic development and water resources are provided.

The invention provides a light water-retaining matrix suitable for greening of low-load reconstructed roofs. The light water-retaining matrix contains 12-30 volume parts of organic fertilizer, 15-45 volume parts of coco coir, 10-30 volume parts of turf, 15-25 volume parts of vermiculite and 10-35 volume parts of zeolite, wherein the content of organic matter is greater than 30%, the total nutrients are 2-5%, the pH is 5.5-7.5, the EC is less than 3.5mS / cm, the water content is 25-45%, the total porosity is 60-75%, the dry bulk density is 0.25-0.5 Mg / m<3>, and the wet bulk density is 0.65-1.05Mg / m<3>. The invention also provides a method for preparing the light water-retaining matrix. The light water-retaining matrix has the advantages of excellent drainage, water-retaining property and fertilizer-retaining property and overall, balanced and quickly-slowly successive nutrients; the materials are easy to obtain; the matrix product is suitable for greening of low-load roofs in cities and plays an active role in promoting improvement of urban ecological environment quality.

The invention relates to a method for calculating ecological water demands in urban rivers, lakes and belongs to the technical field of ecological treatment of rivers and can be applied to the fieldsof water environment treatment and ecological environment protection. The method depends on the requirement of barrage construction engineering in urban water system building process, certain stable river width and reservoir capacity are formed after water hamming, and rivers are mainly characterized by problems such as small river confluence area, insufficient incoming river water, non-uniform spatial and temporal distribution of water resources, low water pollution carrying capacity and weak ecological environment. In the aspect of ecological environment, the river ecological environment water demand refers to the minimum water quantity required for river ecological systems to improve the river ecological environment quality or maintain ecological environment quality to prevent further reduction and the minimum base flow accommodated by the ecological systems under the water quantity. In general, certain micro flows of rivers can be further guaranteed in combination with current water environment river construction on the basis that river evaporation leakage is guaranteed.

The invention discloses a chemical pollution land remediation method which comprises the steps of (1) constructing a flora; (2) carrying out a simulation experiment; (3) optimizing conditions; and (4)carrying out ecological risk assessment. According to the chemical pollution land remediation method provided by the invention, a culture medium is prepared through selecting polluted soil, so that appropriate bacteria are screened out, and the microbial flora is constructed; then through the simulation experiment, a remediation model is constructed; after corresponding data is acquired, the growth condition of the flora is optimized, and the influence of the microbial flora on a soil ecosystem is controlled through ecological risk assessment, so that through the moderate microbial remediation manner, chemical land pollutants are desorbed from the surfaces of soil particles and are then completely degraded; and meanwhile, the added chemical agent cannot cause secondary pollution on the soil. According to the chemical pollution land remediation method provided by the invention, the ecological environment quality of a chemical pollution land is effectively improved, the land reservationamount is improved, the land utilization value is improved, and a contribution is made for social sustainable development.

The invention provides a method for improving facility continuous-cropping soil by means of earthworms. Between rotations of crops in a facility greenhouse, a soil plough layer is turned over so thatearthworm feed can be applied into the soil plough layer, then young earthworms are put into soil, then the soil is covered with wet straw, and then the next crop is planted. According to the providedmethod for improving the facility continuous-cropping soil by means of the earthworms, the current development requirements of the ecological agriculture and the economic society are combined, a proper living environment is created according to the living characteristics of the earthworms, soil improvement, agricultural waste resource utilization and earthworm breeding are combined, the conversion efficiency of agricultural waste nutrients is improved, the ecological environment quality of the farmland soil is improved, the agricultural green production concept is deepened, and the yields andthe quality of agricultural products are improved. The provided method for improving the facility continuous-cropping soil by means of the earthworms has the advantages that the conception is novel,economic and ecological benefits are high, management is simple and convenient, technical operation is easy to master, and the like, and is worthy of application and popularization.

The invention relates to a method for disposing green plant wastes by classification for constructing a saline-alkali soil body. The method includes disposing different kinds of green plant wastes byclassification: conducting low temperature carbonization on branches with the diameter more than 5cm to develop primary charcoal to be used 100cm underground in the saline-alkali soil or laying a separation layer of about 30cm above the normal water level to prevent salt from rising with a capillary and utilizing the charcoal to improve the adsorption capacity of the salt at the same time; crushing branches with the diameter of 2-5cm into chips or strips, conducting aging by adding urea, conducting screening to obtain wooden chips with the particle size less than 2cm for covering a first layeron the soil surface and wooden chips with the particle size more than 2cm for covering a second layer on the soil surface; crushing branches with the diameter less than 2cm and other green plant wastes with more leaves to the diameter less than 1cm, adding different amounts of desulfurized gypsum according to the salt content of the salt-alkaline soil for oxygen-consuming composting for desalination and improvement of a saline-alkaline soil intermediate soil body. Compared with the prior art, the method can achieve the purpose of comprehensively improving the saline-alkali soil.

The invention discloses a high-efficiency dredging device for water conservancy engineering. The high-efficiency dredging device comprises a base, a dredging pump is fixedly installed on the base, anda mud pump is fixedly mounted on the base. The mud pump is connected with a collecting placing box through a mud outlet pipe. The collecting placing box is further provided with a coagulant reactionwater tank, and the coagulant reaction water tank communicates with the collecting placing box through a connecting pipe. A first rotating rod is driven to rotate by the dredging pump, and the first rotating rod drives gears in a gear box to rotate, so that shoveling plates can be driven to rotate, and then sludge can be easily shoveled and removed; and meanwhile, the sludge can be cleaned by theaction of the mud pump. Raw materials in the coagulant reaction water tank is introduced into the collecting placing box, and then stirring is carried out by stirring blades, so that the sludge in thecollecting placing box can be well treated. Liquid medicine is sprayed into a dredging pipeline through a medicine spraying box, so that bacteria in the sludge pipeline can be reduced, and the safetyof use is greatly improved.

The invention discloses triadimefon pesticide microemulsion and a preparation method thereof. The triadimefon pesticide microemulsion consists of the following components in percentage by weight: 5 to15 percent of triadimefon, 5 to 25 percent of organic solvent, 15 to 25 percent of primary surfactant, 3 to 10 percent of cosurfactant and the balance of water. The preparation method for the triadimefon pesticide microemulsion comprises the following steps: a, weighing the components according to the weight ratio, and mixing and stirring the primary surfactant and the cosurfactant until the mixture is transparent to form an emulsifier; b, mixing, stirring and dissolving the triadimefon and the organic solvent to give triadimefon solution; c, adding the emulsifier into the triadimefon solution and stirring the mixture; and d, adding the water into the mixture of the emulsifier and the triadimefon solution and stirring the mixture until homogeneous transparent liquid is prepared. The triadimefon pesticide microemulsion has good stability, light environmental pollution, high pesticide effect, simple production process, low production cost and high popularization value.

The invention discloses an abandoned mine platform field enclosure ecology restoration method. The abandoned mine platform field enclosure ecology restoration method includes: performing platform field finishing, arranging drainage ditches, building a retaining wall, performing net-suspended spray seeding on a part of a slope surface, and performing agricultural planting soil backfilling, soil improvement and ecology planting. The abandoned mine platform field enclosure ecology restoration method is reasonable in construction plant arrangement, and distinct and clear in construction process, and adopts large modern machinery on site, thereby achieving safe and reliable pumice clearing and machinery chipping, and furthermore uses chipped block stone for building the retaining wall, plants grass on a three-dimensional geonet mat for achieving soil fixation, and increases the green area of a vertical face of a mountain body, thereby improving an overall impression and an ecological aesthetic feeling of environment. The abandoned mine platform field enclosure ecology restoration method can be used for restoration of abandoned mines, mining subsidence areas, abandoned land of quarries,abandoned land of cities and the like, and achieves reutilization of land resources.

The invention relates to an agricultural fungicide, in particular relating to a method for preparing an azoxystrobin and chlorothalonil microemulsion. The microemulsion comprises the following components by weight percent: 5-20% of azoxystrobin, 5-15% of chlorothalonil, 5-25% of latent solvent, 5-25% of surface active agent, 2-8% of freeze-proof agent, 0.5-4% of penetrating agent and the balance of water, wherein the total weight percent of the components is 100%. The water is used as the matrix of the microemulsion, the production cost is low, the microemulsion is easily packaged, and the microemulsion is safely produced, stored, transported and used. The microemulsion can be used for preventing and treating various fungus diseases of crops, is small in environmental pollution, and is beneficial to improving the quality of ecological environment.

The invention relates to a tree building. There is run-through space from ground surface to the top in the building. Said tree stock passes through the space so that the root grows in the soil under the building and the leaf grows at the top of roof. Said space from ground surface to the building top is set in the middle of column or in the space structured by architecture beam or load-bearing wall. There is roof on said architecture column, beam or load-bearing wall. The designing scheme creates a new zoological architecture compounded by tree and building by creating architecture space in the space range from tree to woodland on the ground surface. Meanwhile, woodland is fully made use of. The top of tree architecture can be set in light transmission roof so as to light in architecture and organic soil layer, on which green plant or economic crop grows, is put on other most roofs so that ecological environmental quality is improved furthermore.

The invention provides a soil-fixing fertility type matrix suitable for vertical green walls. The soil-fixing fertility type matrix is prepared from 25-40 volume parts of coco coir, 5-20 volume parts of turf, 10-20 volume parts of edible mushroom residues, 5-15 volume parts of mountain sand, 5-15 volume parts of vermiculite and 15-35 volume parts of zeolite. Ideally, the pH is 5.5-7.8, the EC is less than 3mS / cm, the water content is 30-50%, the content of organic matter is greater than 25%, the dry bulk density is 0.4-0.85Mg / m<3>, the wet bulk density is 0.65-1.25Mg / m<3>, and the total nutrient content is 2-5%. The invention also provides a method for preparing the soil-fixing fertility type matrix suitable for vertical green walls. The matrix has water-retaining property and fertilizer-retaining property, has the advantages of high nutrient content, low maintenance and slow nutrient loss, is suitable for urban vertical green walls and roof greening and plays an active role in improving urban ecological environment quality.

The invention provides a method for identifying suspected pollution discharge of a sea inlet based on a high-resolution satellite image. According to the method provided by the invention, the suspected pollution discharge identification model of the seaborne discharge port is established based on the spectral characteristics of the high-resolution satellite image, the suspected pollution discharge port can be quickly screened, the water color condition of the seaborne discharge port along the bank can be dynamically and comprehensively monitored, the pollution generation and evolution process can be quickly mastered in detail, the seaborne discharge port can be supervised and managed from the aspect, and the seaborne discharge port pollution discharge identification efficiency can be improved. Resources such as manpower and material resources are saved, terrestrial pollutants are strictly supervised to enter the sea, and the ecological environment quality of offshore areas is improved.

The invention discloses a sewage detection device for factories, which comprises a frame, a support plate is arranged at the bottom of the frame, a storage box is provided on one side of the top surface of the support plate, a power supply is provided on the inner bottom surface of the storage box, one side of the power supply is located in the storage box A controller is arranged on the inner bottom surface, a rotating shaft is arranged on one side of the storage box and the other side on the top surface of the supporting plate, a first motor is arranged on one side of the rotating shaft and on the top surface of the supporting plate, and a first gear is arranged on the output shaft of the first motor , the first gear is meshed with the second gear, the second gear is arranged on the output shaft of the rotating shaft, the detection equipment body is arranged on the top surface of the frame, and a support frame is provided on one side of the detection equipment body and on the top surface of the frame. A second motor is arranged on the side and on the top surface of the frame. The beneficial effects of the invention are: the detection device can not only realize the detection of sewage components, but also detect the components of insoluble particle impurities in sewage, which is suitable for popularization.

The invention discloses a water-improving micro-ecological preparation used for river crab breeding. The preparation is composed of the following raw materials in parts by weight: 50-85 parts of zeolite powder, 1-3 parts of paenibacillus, 1-2 parts of a saccharomyces cerevisiae, 1-2 parts of bacillus subtilis, 3-5 parts of streptococcus lactis, 5-10 parts of tourmaline micro particles, 0.5-1.4 parts of nitrifying bacteria, 5-8 parts of an oxygenating agent, 1-3 parts of sodium alginate, 5-8 parts of wall-broken yeast powder and 0.25-0.45 part of photosynthetic bacteria. The micro-ecological preparation provided by the invention is a multifunctional cleaning agent, and has the characteristics of being capable of adsorbing impurities in water, decomposing the impurities under the action of beneficial bacteria, thereby improving the nutrient components of the water, and improving the oxygen content of the water; and the preparation can effectively inhibit the growth of blue-green algaes and remove the odor of the water, thereby improving the quality of the water and improving the quality of the ecological environment, and is very suitable for the river crab breeding.

The invention belongs to the technical field of enterprise wastewater management, and particularly relates to an enterprise discharged wastewater monitoring system and monitoring method. The system comprises a monitoring unit, a monitoring platform and a mobile terminal, wherein the monitoring unit comprises a flow detector, a camera, a first GPRS positioning module, a valve control module, a characteristic factor detector, a reserved sample collector and a first remote transmission module, wherein the first remote transmission module is connected with the flow detector, the camera, the firstGPRS positioning module, the valve control module, the characteristic factor detector and the reserved sample collector; and the monitoring platform comprises a processing operation unit, a data generation unit, an early warning unit, a second remote transmission module and a display unit. According to the invention, closed-loop management of real-time calling of monitoring data, timely processingof early warning and alarm, real-time distribution of law enforcement work orders, enterprise emission monitoring, alarm processing and processing result feedback tracking can be realized, and the supervision law enforcement efficiency, the enterprise governance level and the ecological environment quality are comprehensively improved.

The invention discloses a water-improving micro-economical preparation. A complete formula of the micro-ecological preparation comprises the following bacterium types: paenibacillus, breveibacillus choshinensis, bacillus and saccharomyces cerevisiae with content at a ratio of 1:1:1:1. The water-improving micro-economical preparation disclosed by the invention has the following advantages: firstly, a novel preparation for inhibiting blue-green algae growth is developed for environmental protection and aquaculture; secondly, the micro-ecological preparation is used for inhibiting the blue-green algae growth, so that water quality can be effectively improved, the water smell is removed, and the soil quality is improved; thirdly, the preparation form is a concentrated liquid of a liquid, the preparation is easy to dissolve in water, and a using method is as follows: dissolving the novel preparation with concentration of 1:32 in to-be-treated water.

The invention belongs to the technical field of agriculture, and particularly relates to an annual zonal composite efficient planting method of grain / vegetable-oil / cotton. According to the method, based on the complementary characteristics of high and low crops such as wheat / spinach and peanut / cotton, optothermal and other resources are fully utilized, so that ventilation and light transmitting of the wheat and cotton are facilitated, the marginal effect of high-pole crops is exerted, simultaneous planting of two crops and annual planting of four crops are achieved, and the growth of various crops is promoted. By adopting a grain / vegetable-oil / cotton planting mode, long-term continuous cropping obstacles of single crops such as the cotton and the peanut are alleviated, annual crop rotation and alternate husbandry are achieved, soil fertility improvement is facilitated, the occurrence of diseases and insect pests of single crop planting is reduced, the application of fertilizers and pesticides is reduced, the eco-environmental quality is improved, and the agricultural sustainable development is achieved.

The invention relates to an organic fertilizer colloidal particle capable of fertilizing and stabilizing soil prepared from municipal domestic refuse and a preparation method thereof. The organic fertilizer colloidal particle is prepared from the following components in parts by weight: about 70-90 parts of organic refuse particle, about 10-25 parts of inorganic refuse particle and 0.4-0.5 part of fermentation additive. The fermentation additive is prepared from the following components in parts by weight: 5 parts of purpose-made additive, 30 parts of humus-legume waste, 25 parts of water-soluble linear high-molecular polymer, 25 parts of bentonite or modified bentonite, 10 parts of polyaluminum chloride and 5 parts of potassium polyacrylate. The municipal domestic refuse is recycled, and the working procedure is convenient and is easy to learn and operate. Compared with the traditional refuse incineration power generation, refuse landfill and other treatment modes, the method provided by the invention has the advantages of small occupied area, no discharge of three wastes, small CO2 discharge amount and the like.

The invention discloses a method for producing an agricultural biological agent with natural latex separating liquid. The method comprises the steps that natural latex is separated into two parts in advance, namely concentrated latex and latex skim slurry, through a high speed centrifuge, and then the two parts are processed separately; after part of moisture in the latex skim slurry is removed through an RO membrane, a concentrated latex skim solution is obtained; a proper amount of urea and sodium metasilicate are added to the concentrated latex skim solution to adjust pH value, and then a water and soil conservation agent is obtained; selected microorganism strains and a proper amount of waste molasses are added to the concentrated latex skim solution, sealed fermentation is conducted, and then liquid microbial agent is obtained; selected microorganism strains, a proper amount of waste molasses and inorganic fertilizer are added to the concentrated latex skim solution, and then liquid agricultural microbial fertilizer is obtained. According to the method, the latex skim slurry obtained by processing and separating the natural latex is prepared into the agricultural biological agent which is used for agricultural production and soil and water environment restoration, the environmental pollution problem can be solved, furthermore, the yield of agricultural products can be raised, quality of the agricultural products can be improved, ecological environment quality can be improved, and obvious social benefits, economic benefits and ecological environment benefits are achieved.

The invention discloses a water improvement micro-ecological preparation. The water improvement micro-ecological preparation is prepared from bacillus licheniformis, rhodopseudomonas palustris, bacillus laterosporus, saccharomyces cerevisiae, rhodopseudomonas palustris, rhodopseudomonas palustris, bacillus laterosporus, saccharomyces cerevisiae, saccharomyces cerevisiae, rhodopseudomonas palustris, bacillus laterosporus and saccharomyces cerevisiae according to a content ratio of 1: 1.5: 1.5: 1. The invention develops a novel preparation for inhibiting the growth of blue-green algae for surface water and aquaculture, and can effectively improve the quality of water and remove peculiar smell of the water.

The invention discloses a multi-opening intelligent irrigation system and method for rice fields. Sensors in the system are distributed in all rice field pieces and connected with a control device. The other end of the control device is connected with an electric regulating valve. A water conveying pipeline is connected with a water source and perpendicular to ridges. A water pump and the electric regulating valve are installed in the section between the water source and the rice fields. The multi-opening intelligent irrigation system and method have the advantages that a traditional irrigation system is abandoned, an irrigation system is determined according to actual water requirements of crops, and therefore the utilization rate of water resources can be increased, agricultural water consumption is lowered, and the ecological environment quality of farmlands can be improved; the irrigation management level is improved, extensive manual operation is changed, labor consumed during irrigation is reduced, automatic water control is achieved, management cost is reduced, and benefits are remarkably improved; rapid irrigation can be achieved, all rice field pieces can be independently irrigated at the same time, water does not need to flow from one rice field piece to another rice field piece, and therefore irrigation can be uniform, and yield consistency and total yield are increased.

The invention relates to a method for repairing an abandoned mine by using titanium gypsum as an impermeable lining. An overall structure for repairing the abandoned mine is composed of the impermeable lining, a leachate guiding and discharging layer, a filling material layer and a sealing soil covering layer in sequence from bottom to top, and the impermeable lining is made of the titanium gypsum. A construction method comprises the following steps that firstly, an impermeable layer is laid, secondly, the leachate guiding and discharging layer is laid, then, the material layer is filled, and finally, the sealing soil covering layer is formed. According to the method for repairing the abandoned mine by using the titanium gypsum as the impermeable lining, the titanium gypsum is used as the raw material of the impermeable lining, the source is rich, solid waste resources are fully utilized, a large amount of treatment cost is saved for the titanium dioxide industry, a large amount of raw materials and resources are saved, and good economic and social benefits are achieved.