190 results about "Arid area" patented technology

The invention provides a tree species screening method for high-altitude drought afforestation, an afforestation method and application, and belongs to the technical field of forest tree breeding and cultivation. According to the screening method, five physiological and biochemical indexes of soluble protein, malondialdehyde, proline, peroxidase and soluble sugar in the tree species are measured through a gradient drought stress experiment, and comprehensive scoring is performed by adopting a membership function, so that the drought-resistant tree species are scientifically screened. The tree species such as sophora moorcroftiana, rosa serrulata and amorpha fruticosa screened by the method are applied to afforestation in the high-altitude arid region, and the afforestation survival rate and preservation rate can be remarkably increased. The invention provides a reliable technical scheme for solving the long-term problem that the selection of tree species in the difficult site field lacks scientific basis.

The invention discloses a GIS-based arid and semi-arid region farmland irrigation priority dynamic evaluation and zoning method, system, device and medium, and belongs to the technical field of farmland irrigation priority evaluation and zoning, and the method comprises the steps: collecting various types of remote sensing satellite data of a to-be-irrigated region; performing pretreatment; identifying the boundary and range of the to-be-irrigated area, and extracting a remote sensing image of the to-be-irrigated area; based on the remote sensing image of the to-be-irrigated area and the basic geographic information, parameter calculation is carried out, and normalization processing is carried out; performing superposition calculation on each normalized parameter according to a set weight to obtain an irrigation priority index; partitioning the to-be-irrigated area based on the irrigation priority index to generate an irrigation priority map; and judging whether agricultural irrigation management requirements are met or not according to preset conditions. According to the method, temperature vegetation drought indexes, normalized moisture indexes, water resource accessibility and crop economic value parameters are coupled; the irrigation priority index weight can be automatically adjusted according to a season strategy.

The invention discloses a phycomycete composite biological fertilizer for an arid loess area as well as a preparation method and application of the phycomycete composite biological fertilizer, and belongs to the technical field of biological fertilizers. The phycomycete composite biological fertilizer is prepared from nitrogen-fixing anabaena and acinetobacter, counted by a single cell, the total viable count of the anabaena azotica is greater than or equal to 1.0 * 10 < 6 > CFU / mL, and the total viable count of the acinetobacter is greater than or equal to 1.0 * 10 < 7 > CFU / mL. Experiments prove that the phycomycete composite biological fertilizer can significantly improve the germination potential and germination rate of crop seeds, promote seedling growth, improve the nutritional quality of crops and reduce the death rate of seedlings, is suitable for various crops such as wheat, Shanghai Qing and peas, and has important application value in agricultural production in arid regions.

The invention provides flaky mineral separation equipment and a separation method thereof. The flaky mineral separation equipment comprises a transmission belt inclining downwards, the upper surface of the transmission belt is in upward transmission, the surface of the transmission belt is a smooth surface, and the transmission belt is a polyurethane transmission belt. Separation of flaky minerals and granular minerals, such as separation of mica sheets and quartz particles, is realized by adopting a dry method, the method is suitable for mineral separation in arid regions, the mineral separation cost is reduced, and the problems of blockage and the like are avoided.

The application discloses application of an OSA3 gene, relates to the technical field of genetic engineering, and the nucleotide sequence of the OSA3 gene is shown as SEQ ID NO. 3. The application research proves that the OSA3 gene has the ability of regulating the deep root ratio of rice, and by using the ability, drought-resistant transgenic rice can be developed for arid regions. Meanwhile, the OSA3 gene knockout mutant osa3-1 / osa3-2 constructed by the application has the increased number of shallow root systems, and can be used for developing transgenic rice resistant to poor soil for poor soil regions, and enhancing the adaptability of rice germplasm to the environment.

The utility model discloses a detachable guardrail flower box with a sponge function, which belongs to the technical field of road landscape flower boxes, and comprises a flower box shell, a sponge, a separation component, a water absorption cotton swab, a water escape valve, a cushion block and a connecting shell, the outer surface of the connecting shell is connected with a guardrail handrail, and the interior of the connecting shell is of a hollow structure. A plurality of cushion blocks are installed at the upper end of the bottom surface of the connecting shell, the flower box shell is placed above the cushion blocks, a water escape valve is inserted into a bottom plate of the flower box shell, the partition assemblies are arranged in pairs and installed in the flower box shell, water storage spaces are formed among the partition assemblies, the lower portions of side plates of the flower box shell and the bottom plate of the flower box shell, and the sponge is installed between the two partition assemblies. A plurality of water absorption cotton swabs are mounted in the separation assembly, and the bottom ends of the water absorption cotton swabs are arranged in the water storage space. The problems that in the prior art, due to the fact that a guardrail flower box structure has defects, roots are prone to rot, or water cannot be supplied to vegetation for a long time in an arid area are solved. The application range of the flower box is widened.

The application provides a kind of bio-based degradable material to arid region field soil environment influence evaluation analysis method.The bio-based degradable material to arid region field soil environment influence evaluation analysis method includes a. Provide a multi-factor environment simulation model, the model combines different aridity, seasonal variation, long-term climate fluctuation factor, describes the dynamic process of soil change.The bio-based degradable material to arid region field soil environment influence evaluation analysis method, by introducing multi-factor environment simulation model, it is avoided that the problem that only single environmental condition is based on in the previous experiment by integrating a variety of variables such as aridity, seasonal variation, climate fluctuation into experimental design.This innovative design enables the method to verify the influence of bio-based degradable material on soil environment under a wider range of conditions, significantly improving the extrapolation and accuracy of experimental results.

The invention discloses a method for repairing alkaline cadmium-polluted farmland in arid and semi-arid regions and application of the method, and belongs to the technical field of soil repairing. According to the method, the alkaline cadmium polluted farmland soil in the arid and semi-arid areas is subjected to deep ploughing treatment, and organic materials are applied to improve the soil fertility and the environment and health quality. On the basis, an intercropping planting system suitable for the arid and semi-arid land area is constructed, low-cadmium-accumulation grain crops and high-cadmium-accumulation plants are reasonably selected according to the ecological conditions and crop characteristics of the area, and an intercropping combination of low-absorption grain crops and enriched economic crop plants is formed. According to the system, organic unification of source reduction of heavy metal pollution in soil, pollution control in the planting process and continuous and safe utilization of the farmland is achieved, the dual goals of pollution remediation and farmland production are taken into account, and pollution reduction and collaborative improvement of economic benefits are achieved; and a feasible technical path is provided for ecological restoration of alkaline heavy metal polluted farmlands in arid and semi-arid regions.

Design, manufacture, and production of an engineering product that has the potential to assist and change agriculture in semi-arid and arid areas. Designing and manufacturing an engineering product in the form of absorboost tiles, these absorboost tiles assist in the replacement of the functions of soil, for easy interchangeability these absorboost tile dimensions are according to the effect root zone of the plant type, and the anther aim of absorboost tiles have durability, so that can use for agriculture with multiple times with storage capability.

An integrated system for water-adaptive agricultural irrigation in arid regions, including a water storage well, at least one open ditch and at least one subsurface ditch, where a water storage chamber for storing water is provided over the water storage well, the at least one open ditch is connected to the water storage well and located on ground surface, the at least one subsurface ditch is connected to the water storage well and located in soil at a certain distance from the ground surface; the at least one open ditch and the at least one subsurface ditch are each provided with a first control valve at an end close to the water storage well. An integrated method for water-adaptive agricultural irrigation in arid regions, including regulating an irrigation based on comprehensive consideration of available water supply quantity, growth stages of local crops and critical water requirement thresholds.

1. The name of the design product: temperature difference liquid water taking device. 2. The use of the design product: day and night, surface temperature difference water taking device for use in hot and arid regions. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The invention discloses an exposed high and steep slope microtopography reconstruction method for improving vegetation colonization ability, which comprises the following steps: screening rocks with high weathering sensitivity, and establishing a weathering rate quantitative evaluation model; the weathering process of the rock with high weathering sensitivity is accelerated; constructing a micro-topographic space; based on the micro-topographic space, designing a three-stage compound matrix through the nutritional defects of the weathered product of the high-weathering-sensitivity rock, and carrying out layered fusion on the three-stage compound matrix and the micro-topographic structure; and carrying out vegetation planting and weathering-growth synergistic maintenance. According to the method, permeation of a weathering agent is guided through preset cracks, rock is converted into a nutrient matrix through an enhanced weathering technology, and the problem that traditional physical transformation depends on an external matrix and is prone to being deficient in the later period is solved; according to the method, the climate areas are graded, different treatment is conducted on the different climate areas according to the grading result, the water retention rate of the arid area is increased, the drainage efficiency of the wet area is improved, the overall structure is still stable when the gradient is larger than 60 degrees, and the gradient limitation of vegetation bags is broken through.

The application discloses to belong to the technical field of water resources management, and particularly relates to a water resources carrying capacity prediction method based on a water resources supply and demand prediction model, which comprises the following steps: collecting economic, water supply and hydro-meteorological data of a research area; constructing an input-output model, combining with structural decomposition analysis to identify virtual water core influencing factors; constructing a water resources supply and demand deep learning prediction model, inputting influencing factor data under different future scenarios, and outputting water resources supply and demand prediction values; using the supply and demand prediction values and future social and economic data to calculate water resources supply and demand indexes and concentrated carrying indexes, and integrating the two indexes into a water resources carrying capacity index through an entropy weight method. The application realizes accurate prediction of regional water resources supply and demand and dynamic quantification of water resources carrying capacity under multiple social economy-climate scenarios, can accurately identify core driving factors of water resources carrying capacity, and provides technical support for sustainable allocation of water resources in arid areas and coordinated development of social economy and ecological environment.

This invention discloses an anti-clogging patch-type irrigation device and drip irrigation tape, comprising an inlet section, a main body, and an outlet section. The inlet section contains an inlet chamber and a filter structure; the main body contains several parallel anti-clogging channels, within which multiple diverters are spaced along the length of each channel. These diverters divide the water flow into at least two branches, causing impact when the branches converge; the outlet section has an outlet chamber communicating with the anti-clogging channels, and the outlet chamber has an outlet and a sand discharge hole. This invention uses diverters to cause water flow splitting and impact, transforming impurities from sidewall deposition to central convergence and flushing. Combined with the dual-outlet structure of the outlet and sand discharge hole, it achieves excellent anti-clogging performance and self-cleaning function, making it suitable for integrated water and fertilizer irrigation in arid and semi-arid regions.

The invention relates to a mung bean cultivation method suitable for arid regions, and belongs to the technical field of mung bean planting. Comprising the following steps: S1, selecting a dry farming plot with flat terrain for deep ploughing and soil preparation; s2, selecting a mung bean precision seeder provided with a linkage type liquid injection system; s3, the mung bean precision seeder is used for operation, and the following operation is executed in the advancing process of the seeder: S4, within 0.5 s to 1 s after the completion of S3, a soil covering and pressing mechanism arranged behind the seeder is used for covering soil on the seed furrows, a full-biodegradable mulching film is synchronously laid, and the high-humidity soil balls are sealed under the film. Ineffective evaporation of water is reduced to the greatest extent, and a micro-ecological environment which is beneficial to rapid germination of mung bean seeds in a drought and cold environment and establishment of a symbiotic nitrogen fixation system is established.

The invention discloses a soil conditioner for improving saline-alkali soil and a preparation method of the soil conditioner, and belongs to the technical field of saline-alkali soil improvement. Firstly, natural bentonite is modified, and bentonite is subjected to calcification modification to obtain calcium bentonite; then dipping the calcium bentonite in a ferric salt solution for salt modification to obtain salt modified calcium bentonite; dispersing the salt modified calcium bentonite in deionized water to form a suspension, slowly adding a humic acid solution into the suspension, reacting under stirring and heating conditions, and standing and aging to obtain modified bentonite; wherein the concentration of iron ions in the ferric salt solution is 0.1 to 0.2 M, and the dipping time is 40 to 60 minutes; then the modified bentonite and the complex microbial inoculant are compounded and jointly used as the soil improvement agent, through the synergistic effect of the modified bentonite, the leguminous green manure and the complex microbial inoculant, a chemical modification and biological modification coupling mechanism is formed, and the improvement effect on moderate saline-alkali soil in arid regions is especially remarkable.

The application relates to the technical field of water conservancy projects, and discloses a large-section prefabricated and assembled box culvert structure suitable for cold and arid areas and a construction method, a top plate unit comprises a plurality of sequentially connected first prefabricated components, the first prefabricated components are in overall H-shaped structures, and the two sides of the first prefabricated components are provided with first joints at bottom ends; a bottom plate unit comprises a plurality of sequentially connected third prefabricated components, the two sides of the third prefabricated components are provided with third joints; a side wall unit comprises a plurality of sequentially connected second prefabricated components, the second prefabricated components are in overall L-shaped structures; one side end of the second prefabricated component is provided with a second upper joint matched with the first joint, and the other side end is provided with a second lower joint matched with the third joint. The box culvert is split into a plurality of H-shaped first prefabricated components, a plurality of L-shaped second prefabricated components and a plurality of third prefabricated components, the size and weight of a single prefabricated component are reduced, and the engineering implementation difficulties of the large-section box culvert in the prefabrication, transportation and on-site hoisting processes are solved.

The invention provides an early sowing and rainwater collecting planting method for arid and semi-arid areas, and belongs to the technical field of crop cultivation. The invention provides a millet planting method in arid and semi-arid regions, which comprises the following steps: when a soil layer is unfrozen by at least 20cm in spring, performing full film mulching and sowing on seeds and seed fertilizers subjected to seed dressing treatment; and supplementing a foliar fertilizer in the key growth period of the millet. According to the method, through seed dressing and full-film sowing of seed fertilizer, in combination with supplement of foliar fertilizer, early sowing and early maturing of millet can be completed only through rainfall, the utilization rate of fertilizer, pesticide and water is remarkably increased, the yield is increased, and the cost is saved.

The invention discloses a multi-condition constrained multi-modal remote sensing intelligent identification method for an arid region reservoir dam, and the method comprises the steps: firstly, making a VIS-NIR multi-modal reservoir dam image data set for algorithm training and feature learning for a serious problem of target spectrum homogenization of VIS data in an arid region; secondly, designing a DDE-YOLO algorithm, adopting an MF early fusion strategy to perform weighted fusion on input of two modes of VIS and NIR in a symmetric mode, and performing feature learning optimization by using MSC3k multi-scale C3k convolution and TCUB transposed convolution up-sampling; and then providing a multi-condition constraint strategy to screen potential candidate areas of the dam, realizing accurate positioning of a target by using an NMS algorithm, and extracting coordinate information of a center point of the detected target to generate a vector map. The method can effectively solve the problems that under the complex arid region background, under VIS single-mode input, the homogenization of a reservoir dam target and the background is serious, the dam space positioning error is large, the detection precision is low, the false alarm rate is high, and the remote sensing intelligent extraction and automatic drawing level is low.

The invention discloses an arid and semi-arid region slope rainwater collecting and infiltrating irrigation delaying greening device which comprises a rainwater collecting and infiltrating irrigation box fixed to a slope, and the rainwater collecting and infiltrating irrigation box is used for collecting rainwater and conveying the collected rainwater to plant root system positions through a seepage structure; the side face and the bottom plate of the rainwater collecting infiltrating irrigation box are of a closed structure, a plurality of seepage holes are formed in the side face close to the bottom, seepage cotton ropes sleeved with silicone tubes are connected to the seepage holes, and the seepage cotton ropes extend to the position needing irrigation. The rainwater collection infiltrating irrigation box is filled with a water storage material, and the water storage material is used for storing collected water; a PP plastic box cover, a one-way permeation phase conversion film and polyester sandwich screen cloth are respectively arranged at the top of the rainwater collection infiltrating irrigation box from bottom to top; when it rains, rainwater passes through the three-layer structure and enters the rainwater collection infiltrating irrigation box. The problems that the rainfall capacity of arid and semi-arid areas is small, space-time distribution is uneven, and existing slopes cannot be effectively greened are solved; and the cost for maintaining slope greening through sprinkling irrigation and drip irrigation is too high.

This invention discloses a method for improving saline-alkali land in semi-arid regions to enhance plant diversity, comprising the following steps: S1, construction of treatment units; S2, arrangement of treatment units; S3, preliminary soil treatment; S4, planting of plants; and S5, intensive soil treatment. This invention addresses the problems of high salinity and species scarcity in saline-alkali land in semi-arid regions, providing a complete treatment method. By deploying multiple treatment units to form a treatment system, combined with the soil conditioner specifically designed for this invention, the high salinity of saline-alkali soil in semi-arid regions can be alleviated. Simultaneously, by incorporating a phytoremediation system primarily composed of alkali plantations, the biodiversity of exposed saline-alkali land in semi-arid regions can be effectively enhanced. Furthermore, considering seasonal factors and other factors such as rainfall, a one-year treatment plan is ultimately developed. After treatment, the land can be selectively developed into ornamental wetlands or agricultural land, possessing significant economic value.

This invention discloses the application of a heteropoly compound / PVA composite in water retention of sandy soil. The invention prepares the heteropoly compound / PVA composite by mixing polymer polyvinyl alcohol with a Standberg-type heteropoly compound or its derivatives, which is then used for water retention in sandy soil. The heteropoly compound / PVA composite of this invention can significantly improve the water and fertilizer retention capacity of sandy soil, and has high adhesion ability. It can withstand strong winds in arid regions, is not easily blown away and loses its effectiveness, and will not disperse into the air causing particulate pollution. After gradually losing water, the sand amendment forms a porous membrane on the surface of the gravel, maintaining the soil's aeration and permeability, and plays a positive role in the restoration of degraded soils in desert areas.

The light-weight efficient drought-resisting water-saving intelligent equipment comprises a base, a supporting plate is fixedly connected to the top face of the base, and a water supply tank is installed on the top face of the base; a shunt box; the mounting frame is fixedly connected to one side of the supporting plate, a plurality of mounting blocks are mounted on the mounting frame, an air supply bridge pipe is fixedly connected to the mounting blocks, one end of the air supply bridge pipe is fixedly communicated with the flow dividing box, and the other end of the air supply bridge pipe is detachably connected with the irrigation auxiliary pipeline through a connecting piece; a plurality of groups of pressure regulating mechanisms are arranged, the plurality of groups of pressure regulating mechanisms are respectively arranged on the air supply bridge pipe, a return pipe is mounted on each pressure regulating mechanism, and the return pipes are fixedly communicated with the water supply tank; the flow dividing box and the water supply box are fixedly communicated through a water conveying pipe which is provided with a first water pump. A second water pump is mounted on the return pipe. The water resource utilization rate is remarkably increased, the supply and demand contradiction of agricultural water in arid regions is effectively relieved, and the water-saving agricultural development demand is met.

The application discloses a shock-absorbing type culvert with animal migration and water discharge composite functions, and belongs to the technical field of animal passageways, which comprises a square culvert, shock-absorbing structures are arranged on the left side, the right side and the upper side outside of the culvert, the shock-absorbing structures relieve the vibration caused by vehicle driving, reduce the noise size in the culvert and prevent animals from being frightened. A composite light-emitting coating structure is arranged on the inside of the upper side of the culvert, the composite light-emitting coating structure weakens the light difference in the daytime and plays the night light performance at night, thereby providing guidance for animal migration. Drainage structures are arranged on the lower sides of the culvert, the drainage structures prevent the culvert from being washed away, animal passageways are arranged at the middle positions, outer extension plates are further arranged at the entrances and exits of the culvert, organic soil layers and water storage layers are arranged in the animal passageways, the outer extension plates and the organic soil layers and the water storage layers form a boat-shaped structure, water bodies are stored in the boat-shaped structure, the boat-shaped structure is beneficial to relieving the shortage of water resources in arid and semi-arid areas, the culvert is filled by plant growth, the culvert is closer to nature, the wariness of migratory animals to the culvert is reduced, and the ecological improvement effect is achieved.

The invention discloses a mountain species protection system based on a microclimate and ecological niche model in the technical field of biodiversity protection, which comprises a microclimate sensor network module, a data preprocessing module, an ecological niche prediction module, a protection priority evaluation module and a decision output platform module, the microclimate sensor network module comprises a multi-type sensor unit, a gradient layout unit and a dual-mode transmission unit, the mountain species protection system based on the microclimate and ecological niche model is reasonable in structural design, the data precision is improved, the deviation problem of a traditional constant LRT hypothesis is solved through dynamic LRT monitoring, the protection pertinence is enhanced, and the reliability of the mountain species protection system is improved. A first-level protection area of a high-risk mountainous area is accurately identified, dynamic adaptability and a sensor network support real-time data updating, sudden climate changes can be dealt with, the practical value is remarkable, and the method can be applied to research concerned arid areas and high-humidity low-direct-reduction-rate areas.

The utility model discloses an arid area vegetation non-irrigation planting hole which comprises a planting foundation pit, the planting foundation pit is arranged underground, a diversion weir is arranged on the periphery of the planting foundation pit, a soil moisture conservation and restoration layer is laid at the bottom of the planting foundation pit, and a starch gelatinization layer is laid on the soil moisture conservation and restoration layer. The utility model relates to the technical field of non-irrigation planting holes, in particular to a non-irrigation planting hole for vegetation in an arid region, which combines planting hole digging, soil moisture preservation technology and irrigation mode, so that irrigation is not needed in the later period, the survival rate, the preservation rate and the growth amount of nursery stocks can be improved, and the afforestation cost is reduced. By narrowing the top opening of the planting hole, the irradiation time of water in the planting foundation pit is shortened, the evaporation capacity of accumulated water is reduced, the temperature of reserved water is reduced, and the growth environment of plants is protected.

The utility model discloses a corn drought -resisting water -saving irrigation device belongs to agricultural irrigation technical field, and its technical scheme main points include liquid storage tank, the top fixed connection of liquid storage tank has collection subassembly, and the bottom fixed connection of liquid storage tank has irrigation subassembly, the irrigation subassembly includes liquid storage board, the left side fixed connection of liquid storage board has electric valve, solve the irrigation effect of existing irrigation device to be poor, in the actual use process, owing to lack irrigation structure, cannot accurate, high -efficiently deliver the collected rainwater to the corn root system area, lead to the collected rainwater to be difficult to distribute as needed, either directly pour and lead to moisture evaporation loss in large quantities, or cannot be absorbed by the corn root system in the soil, especially in arid regions, cannot satisfy the accurate demand of corn different growth stages to the moisture, and irrigation efficiency is low, is difficult to really play the role of drought -resisting water -saving, reduced the practicability of the device problem.

The invention discloses a complex microbial inoculant which comprises a complex microbial system, and the complex microbial system is composed of a strain W15, a strain D3 and a strain WT5. The complex microbial inoculant further comprises a nutrient medium. The invention further discloses a preparation method of the bacillus subtilis and application of the bacillus subtilis in degradation of corn straw. The composite microbial agent degrades the corn straw in a drought and less-rain field environment, and the degradation rate of the composite microbial agent on the corn straw reaches 71.8% within 60 days and is improved by 138.5% compared with a control group without the microbial agent. The complex microbial inoculant is simple and convenient to prepare and environment-friendly to use, and has important significance on realizing resource utilization of the corn straws in the arid region.

This invention relates to an air-to-water system and its absorbent gel. The preparation method of the absorbent gel includes: dispersing carboxymethyl cellulose in deionized water until a transparent solution is formed; adding copper oxide nanoparticles to the transparent solution and ultrasonically dispersing them uniformly to obtain a CuO / CMC pretreatment solution; adding hydroxypropyl methylcellulose to the CuO / CMC pretreatment solution and stirring until fully swollen to form a precursor solution; adding lithium chloride to the precursor solution and stirring until fully foamed to obtain a foam gel; and finally drying the foam gel to obtain the absorbent gel. The absorbent gel of this invention has low preparation cost, can rapidly and efficiently absorb / desorb moisture, and can be assembled into an independent passive water production system, thus adapting to a wider range of applications in arid regions.