140 results about "Arid zone" patented technology

The invention discloses a method for building flower beds and planting flowers and plants in a heavy saline-alkali land in an arid region and relates to the technical fields of soil transformation methods and green lawn planting. The method for building flower beds and planting flowers and plants in the heavy saline-alkali land in the arid region comprises 18 steps and has various advantages of desalting rapidly, achieving long-acting and durable effect, saving water and cost, completely eliminating weeds, promoting growth of ornamental plants and the like.

The invention discloses a soil improving agent for ecological restoration of high-and-cold arid desertification soil. The soil improving agent is prepared from the following raw materials: in parts byweight, 50-100 parts of a microbial inoculant, 500-2000 parts of biological humic acid fertilizer, 20-100 parts of inorganic fertilizer, 50-150 parts of a water-retaining agent, 10-100 parts of palygorskite, 100-300 parts of bentonite and 10-20 parts of polyaspartic acid. The invention also discloses an ecological restoration method for high-and-cold arid desertification soil, and the method comprises the steps: applying the soil improving agent as base fertilizer to the soil at an applied amount of 100-200 kg of the soil improving agent to soil per mu, then performing rotary tillage and mixing, pouring water, and performing balance for 1-2 weeks so as to construct a plant community. The soil improving agent has the advantages that soil desertification can be managed effectively, the soilstructure and environment in high-and-cold arid zones can be improved, the plant growth in the zones can be promoted, the economic benefit can be increased, and the desertification control can be promoted.

The invention relates to a diversifolious poplar root pruning tillering asexual propagation method, which is characterized in that: an asexual propagation characteristic that a horizontal root of the diversifolious poplar in an upper soil layer can be tillered into an adventitious bud which can be further grown into young shoots is utilized, on the basis that a growth and propagation rule of the desert riparian forest diversifolious poplar in an arid region and surface hydrology distribution temporal and spatial characteristics in the region are followed, before the sprouting of the diversifolious poplar roots in every spring, partial horizontal roots in the upper soil layer are artificially pruned, an irrigation practice is adopted, and the horizontal roots of the diversifolious poplar in the upper soil layer are stimulated through artificial disturbance so as to promote the asexual propagation of the diversifolious poplar of desert riparian forest in the amid region, to prevent the updating hypodynamia and aging development trend of the degenerative populus euphratica oliv. population, to further accelerate the ecological restoration process of the populus euphratica oliv. population, to promote the updating of the degenerative of the populus euphratica oliv. population and to realize the favorable evolution of the desert riparian forest ecological system plant community structure.

The invention relates to the field of afforestation technologies, in particular to a direct-sowing afforestation method for desert haloxylon of arid and extremely arid areas in the growing season. The direct-sowing afforestation method for the desert haloxylon of the arid and extremely arid areas in the growing season comprises the first step of determining afforestation land, the second step of laying drip irrigation pipes on the afforestation land, the third step of performing irrigation before sowing, the fourth step of sowing, the fifth step of performing current-year management after direct-sowing of haloxylon seeds, and the sixth step of performing next-year management after sowing. Compared with an existing afforestation method, according to the direct-sowing afforestation method for the desert haloxylon of the arid and extremely arid areas in the growing season, the survival rate and the retention rate are substantially increased, cost is greatly reduced, afforestation time is prolonged, and the afforestation method is not affected by weather.

The invention relates to a desert plant remote sensing identification method using object-oriented multi-source information fusion. The method comprises the following five units: a large-area multi-source information inlay unit, an object-oriented image segmentation unit, a multi-source information fusion unit, an interpretation rule making unit and a desert plant identification unit. In the prior art, the following conditions that desert plant distribution is sparse; growth spectrum information is weak; desert plants are easily influenced by diffuse reflection; and phenomena of a mixed pixel and a same object with different spectrums are remarkable are not considered. Aiming at the above problems, the desert plant remote sensing identification method using the object-oriented multi-source information fusion is researched and developed so that problems that desert plant types and space-time distribution can not be accurately identified in fields of ecological remediation, a climatic change, a biological diversity, genetic development, poverty elimination and the like can be solved. A technical support is provided for a correlation research mechanism, a commonweal organization, an enterprise and a government. A data analysis basis is provided for exploitation, construction and management of a desert plant industry in an arid region.

The invention discloses a seedling technology of Prunus cistena. The seedling technology is characterized in that the technology takes Siberian Apricot as stock and adopts whole-ear sealing wax seedling, wherein the special breeding method is as follows: a, breeding the stock; b, breeding grafted seedling; and c, breeding the seedling by bed changing. The seedling technology of Prunus cistena provided by the invention comprises the steps of 1, breeding the Siberian Apricot stock; 2, cutting cion and sealing wax; selecting lignified Prunus cistena branches, wherein the cion branch must be soft and has no dried condition and full bud, performing sealing wax for the whole ears; 3, selecting 1-year-old Siberian Apricot seedling; horizontally cutting the Siberian Apricot seedling in place with distance of 4-5cm above the ground to graft; 4, using the cleft grafting or cut-grafting method to graft in the second half of April; 5, after grafting, strengthening management of soil, fertilizer and water. The method improves grafting survival rate of Prunus cistena, develops large-scale breeding of the nursery stock and provides seedling guarantee for widely applying colorful leaf plants in arid area, improving urban ecological environment and improving city landscape value.

The invention discloses a method for preparing production, living and ecological water for an inland river basin in an arid area. The method comprises the following steps of calculating the basic ecological environment water demand of the river, the areas of different ecological protection ranges, the vegetation ecological water demand of different ecological protection ranges, the water demand of different river target ecological environments, the analysis of the river runoff volume on the river target ecological environment water demand and the optimal configuration of the production and living ecological water. On the premise of meeting the total water consumption of the river basin production and domestic surface water, whether the remaining water amount in the past year can meet the basic ecological environment water demand and river loss of a river and the target ecological environment water demand of the river is determined, a scheme of mutually coordinating the production, living and ecological water of the inland river basin in the arid area is provided, and the reasonable configuration and efficient utilization of the water resources are achieved.

The invention discloses a cellular automaton-based arid region natural oasis space dynamic simulation method. The cellular automaton-based ecological water delivery driven arid region natural oasis space dynamic simulation method includes:, based on normalized vegetation indexes, underground water burial depth observation data and other multi-source information obtained through remote sensing images, simulating the total oasis area by adopting an underground water bearing capacity function and an oasis area dynamic function; constructing a cellular NDVI, a neighborhood vegetation rate, a neighborhood flooding rate and a cellular state change probability function according to the NDVI sequence; calculating the coating conversion probability at the t + 1 moment by adopting the cellular NDVI,the neighborhood vegetation rate and the neighborhood flooding rate at the t moment; and calculating a coating conversion score of each cell by adopting a weighted average method, sorting the coatingconversion scores from large to small, setting a coating conversion dynamic threshold in combination with the oasis area simulation result, finally judging how to change the state of the cell in combination with the coating conversion static threshold, obtaining an oasis space dynamic simulation result, and reflecting a model simulation effect through precision evaluation.

The invention relates to the technical field of qanat type underground reservoirs, in particular to a qanat type underground reservoir water collection gallery in an arid region. The qanat type underground reservoir water collection gallery in the arid region comprises a water collection gallery body, radiating water collection pipes, shafts, a water delivery pipeline and a water delivery main canal. The water collection gallery body is arranged in a sand gravel water-bearing stratum on the front edge of a spring water overflow belt of a river or a small river in the arid region and is arranged along the water-table contour, at least one row of radiating water collection pipes is arranged on the two side walls of the water collection gallery body respectively from top to bottom, the separation distance of the adjacent radiating water collection pipes of the same row is 1 to 2 m, and meanwhile at least two shafts vertically communicated with the water collection gallery body are arranged on the water collection gallery body. The effective storage of each qanat type underground reservoir in the prior art is doubled approximately, meanwhile water delivery and a water collection building can be integrated in one, the investment for a water delivery project is reduced, and accurate adjustment of outlet water flows of the underground reservoirs and application of modern pipe jacking and other technologies in conduction are facilitated.

The invention discloses an experimental method used for research of thin film water migration laws. The experimental method comprises following steps: experimental soil sample is delivered into a soil column in layers; ionized water with a certain concentration is delivered into a water supply device, and a small amount of plant oil is added for oil seal of the ionized water; a certain amount of water is added into the water supply device every a period of time so as to ensure that the water level is higher than a buffer layer of the soil column; in experimental processes, data acquired by a humidity temperature sensor is sent to a data acceptance and analysis system via a wireless data sent terminal for analysis; and a certain period of time later, the soil is sampled for another time so as to measure water content and ion concentration of soil of different depth. The experimental method is capable of realizing accurate research on thin film water migration rate under different soil conditions, so that reliable experimental base is provided for research of water migration of soil in arid areas. The invention also discloses an experimental device used for the experimental method which is used for research of thin film water migration.

The invention relates to the technical field of hard-branch cutting afforestation methods for Chinese tamarisk of arid and semi-arid areas, in particular to a hard-branch cutting afforestation method for Chinese tamarisk of arid and semi-arid areas in summer. According to the hard-branch cutting afforestation method for the Chinese tamarisk of the arid and semi-arid areas in summer, the cutting survival rate and the retention rate of the Chinese tamarisk in summer can be remarkably increased, and hard branches of the Chinese tamarisk can survive through cutting in the arid and semi-arid areas in summer. In the method, the stored Chinese tamarisk hard-branch seedlings are combined with the modern irrigation technology, so that the adverse effects on Chinese tamarisk cutting afforestation by limiting factors such as aridity, high temperature, wind and sand are effectively reduced, the time breakthrough of the Chinese tamarisk cutting afforestation is achieved, and the method has important practical significance to forestry and ecological construction, especially large-scale afforestation and ecological construction. In addition, compared with conventional afforestation by planting seedlings, the method has the advantages that no seedlings need to be purchased or allocated or transported, neither digging nor planting is required, and afforestation cost is reduced by 80 percent.

The invention discloses a method for identifying sudden drought based on instantaneous development rate, which comprises the following steps: (1) constructing a standardized evaporation deficit indexbased on atmospheric evaporation requirements and actual evaporation data; (2) preliminarily identifying drought events connected on a space-time scale by using a three-dimensional clustering method;(3) defining drought development and recovery stages based on drought severity changes; (4) defining and calculating an instantaneous development and recovery rate between spatially connected and temporally adjacent drought blocks, and identifying sudden drought based on the instantaneous development and recovery rate; and (5) defining the characteristics of sudden drought intensity, severity, influence area, drought center and the like. The method provided by the invention has important guiding significance for identifying sudden drought, and can provide a certain degree of guidance for reducing agricultural loss caused by sudden drought.

The invention discloses a method for observing preferential flows in arid and semi-arid alpine regions, which belongs to a technical measure for researching forest hydrology processes, water resources and sloping-field runoff characteristics. In a technique and a method for observing preferential flow observing fields in arid and semi-arid alpine regions disclosed by the invention, according to the theories of forest ecology and forest hydrology, the occurrence regularity and development regularity of snowmelt runoffs are observed and studied, and through observation, research and analysis, the change rule of preferential flows under the conditions of different weather conditions, different forest vegetations, different forest coverage rates, different manual acting modes and different slope positions and directions is revealed, thereby finding effective ways of increasing the flow rate of preferential flows, developing and rationally utilizing water resources, making up the flow rate of river channels in dry seasons, relieving the contradiction of water utilization for spring ploughing in the middle and lower reaches of rivers, and solving practical problems which are badly required to be solved in current agricultural production.

The invention provides a dustfall collection method for separating impurities. By adopting the method, impurities can be filtered in the course of natural subsidence and collection, thereby improving the purity degree of a collected sample, preventing the sample from directly being exposed in gas flow, effectively restraining 'secondary dusting', improving dry-type sampling efficiency and effectively decreasing the water evaporation inside a collector simultaneously so that a wet-type collection can be also carried out in drought area; the dustfall sample is directly collected in an independent sample storage unit so that the sample is more convenient to be collected and the work load is reduced; the method has wide applicable areas in both drought and humid regions and can be widely applied in research in aspects of environment, ecology, aeolian landform, sand control works and the like.

The invention discloses a new method for sand fixing by using blue algae. The method comprises the steps of firstly selecting the blue algae with a curing function, and placing algae seeds in a proper culture medium for enrichment culture; then uniformly stirring well-growing algae liquid, adding a proper amount of positive ion metal compound to obtain algae liquid with a curing function, then uniformly spraying the algae liquid obtained by enrichment on the surface of sandy soil for multiple times, placing the sandy soil sprayed by the algae liquid under a natural drying environment for culturing multiple days, and then terminating the test, wherein sand grains at the surface of the sandy soil are cemented and fixed by the blue algae through a curing function, so the surface layer sand grains do not transfer. The method is simple and convenient to operate, easy to control and low in cost and can be widely used in fixing of moving and semi-moving dunes in an arid region.

The invention relates to the technical field of environment protection and greening of side slopes, and provides a spray seedling matrix for regreening of bare side slope adapted to soil in arid and semi-arid zones and a preparation method of the spray seeding matrix. The spray seedling matrix provided by the invention is prepared from the following raw materials in parts by weight: 25 to 40 parts of composted organic wastes, 30 to 40 parts of side slope loess, 5 to 15 parts of kaolin, 0.5-0.8 part of potassium fulvate, 5 to 15 parts of bentonite clay, 3 to 4 parts of flour sticky glue and 5 to 10 parts of plant fibers. According to the spray seedling matrix, intensive aboveground parts and developed root systems of plants can be quickly formed on the long-term arid and bare side slope, regreening of the side slope can be effectively carried out, the soil is consolidated, and surface runoff and soil washing can be prevented and controlled. The preparation method provided by the invention comprises the steps of mixing the composted organic wastes, the side slope loess, the kaolin, the potassium fulvate and the bentonite clay and pulverizing into particles; then mixing the particles with the plant fibers to obtain a mixture; successively, adding water and stirring the mixture to form a viscous state; then mixing the viscous product with the flour sticky glue. The preparation method has the advantages of simple technology, strong operability and benefit to industrial production.

The invention relates to a multi-ecological factor integrated arid region ecological environment remote sensing monitoring method, and belongs to the technical field of remote sensing geoscience application. On the basis of optical remote sensing images, starting from the angle of coupling ecological system components, on the basis of considering green degree (NDVI), humidity (Wet), dryness (NDBSI) and heat (LST) ecological factors, an enhanced remote sensing ecological index (ERSEI) is constructed in combination with a developed comprehensive salinity index (CSI) and water network density (WND) remote sensing estimation model, and remote sensing comprehensive evaluation of the ecological environment of the arid region is achieved through the index. The ERSEI utilizes principal component analysis to design a principal component contribution rate autonomous weight distribution mode, comprehensive characterization is carried out on each ecological factor, and then the ecological environment quality is quantitatively measured. The method considers the main composition of an ecological system and the characteristics of the arid region environment, can automatically, quickly and efficiently integrate the quality thematic data of the large-scale ecological environment of the earth surface, and provides a new method for the normalized monitoring of the ecological environment of the arid region.

The invention relates to a water and fertilizer regulation and control method for improving the yield of an alfalfa tame pasture of a newly-reclaimed sloping field at a river valley in an arid region, and the method mainly aims at the problems that the alfalfa tame pasture of the newly-reclaimed sloping field at the river valley in the arid region is large in slope, is thin in soil layer and is poor in water holding and fertilizer retaining capability and the yield is caused by the reduction of soil fertility to be unstable because water and soil loss is liable to happen. Through employing small-water-flow multi-frequency intermittent sprinkling irrigation and combining with fertilization management, the method reasonably optimizes the water and fertilizer application steps and mod. The method enables the water holding and fertilizer retaining of the soil of the alfalfa tame pasture of a thin soil sloping field at the river valley in the arid region to be fully coupled to water and fertilizer application through scientific water and fertilizer regulation and management. The method increases the effectiveness of water and fertilizer, prevents water and soil loss, guarantees the demands of alfalfa for water and fertilizer, and achieves the water and soil retaining and water saving stable yield of the alfalfa tame pasture. The method is suitable for the newly-reclaimed sloping field at the river valley in the arid region, especially for the yield increasing and stabilizing of the alfalfa tame pasture of the thin soil sloping field at the river valley in the arid region, wherein the slope is greater than 2%, and the thickness of the soil layer is 20cm-50cm.

The invention belongs to the field of ecological treatment, and particularly discloses a plant community configuration model and a slope protection vegetation planting method by utilizing native shrubs and grasses in an arid area. On the basis of mastering natural conditions of the arid area, substrate conditions of road slope and local ecological characteristics, and correctly identifying key factors restricting planting of plants on the slope, a configuration model is established through matching planting of different species, and substrate environment is manually regulated and controlled bycombining the slope protection vegetation planting method, so that the planting of local plants on the slope of the arid area is promoted, a stable vegetation structure is constructed, coverage of grass vegetation on the slope is improved, and soil and water loss is slowed down. The model and the method can solve problems of serious environmental factors in arid areas, difficult vegetation restoration, and hidden ecological safety hazards caused by introduction of a large number of foreign species on a side slope.

The invention discloses a high-yield cyperus esculentus cultivation method suitable for sandy loam in an arid region, and belongs to the technical field of high-yield cyperus esculentus cultivation methods. The high-yield cyperus esculentus cultivation method comprises the following steps of seed selection, airing, winter storage, soil preparation, sowing, irrigation, field management and harvesting. According to the high-yield cyperus esculentus cultivation method suitable for the sandy loam in the arid region, the yield of the cyperus esculentus tubers in the sandy loam in the arid area is increased through comprehensive measures such as seed optimization, sowing density regulation and control and field management in an arid sandy land, the water content of the tubers is 10% or below through tuber optimization, seed reservation and airing, the tuber vitality of cyperus esculentus stored at the normal temperature is effectively kept, the sowing germination rate is increased, and the yield of the cyperus esculentus tubers is increased to the maximum by adjusting the sowing density to 20-40 cm line spacing.

The invention provides a method for recovering vegetation of a high and steep fracture development slope in northwest arid regions. According to the method, planting grooves are built in a soil-bearable area of a side slope; grooving are manually formed in an area with slope fracture development and slope gradient of more than 50 degrees, and vegetation is planted in the grooves; and the technicalmeans of comprehensive vegetation recovery of building a planting pool at the bottom of the side slope and planting arbor and vine vegetation in the planting pool and maintenance management achieve the vegetation recovery effect of the slope body. The problem that the vegetation recovery effect is difficult to achieve by a single technical means in northwest arid regions is achieved.

The invention discloses a high-yield oat cultivation method in a semi-arid region. The technology of ridge and furrow rainwater harvesting is implemented, rainfall harvested by ridges and furrows flows into planting furrows, and rainwater is superimposed in the furrows and infiltrates more deeply, so that the water content of soil is increased. Farmland crop growth microtopography is changed by the planting technology of ridge and furrow rainwater harvesting, plant root systems change in soil spatial pattern, and the use efficiency of the rainfall resource is improved. A water-retaining agent is applied at the same time, is capable of improving the soil structure, promoting granule formation and absorbing and keeping water with the weight hundreds or thousands times that of the water-retaining agent to achieve soil water storage and preservation and is capable of releasing the absorbed water when soil is arid and short of water.

The invention relates to the technical field of red date sapling water-saving irrigation and discloses a drought and extreme drought region sand land 1cm-4.5cm ground diameter red date tree well type irrigation method. The method comprises the following steps of determining the forest land soil of red date trees with 1cm-4.5cm planting ground diameter to be sand land of drought and extreme drought regions; selecting a vertical shaft pipe with holes, punching a hole which is matched with the vertical shaft pipe with the holes in the ground surface of the side direction of each red date tree, wherein the straight distance between the position of the hole and the ground surface of each red date tree is 5cm-10cm, and the vertical shaft pipe is inserted into the hole. Compared with the flooding irrigation mode, the drought and extreme drought region sand land 1cm-4.5cm ground diameter red date tree well type irrigation method is capable of saving 85%-87% of water; compared with the furrow irrigation mode, the method is capable of saving 65%-69% of water; compared with the common trickle irrigation mode, the method is capable of saving 28%-37% of water; according to the method, the water source is effectively saved, the related technological problems of earth surface water accumulation, surface runoff, water dropper blockage and the like are solved, the maturity of red dates is facilitated, the yield and the quality are improved, and for the drought and extreme drought regions, the water-saving rate is quite considerable.

The invention discloses a semi-arid region aspen anti-drought afforestation method. The method includes the following steps of firstly, preparing a land, wherein soil is turned over comprehensively inautumn and winter by the depth of 30-40 cm, planting pits with the length, width and depth being 80 cm*80 cm*(80-100) cm are dug after the land is raked flat before afforestation in spring of the second year, and the planting spacing of aspen is 2 m*2 m or 2 m*3 m; secondly, lifting seedlings and conveying the seedlings, wherein the seedlings are adjusted nearby, the seedlings are planted instantly after being lifted or planted in the current day; thirdly, conducting transplanting; fourthly, conducting management, wherein after the seedlings are planted, the young forest tending and protecting are reinforced, and the timely intertilling and weeding, fertilizer applying and irrigating, disease and insect pest preventing, forest fire disaster preventing and artificial damage preventing areconducted. The method is high in practicability, low in manufacturing cost and suitable for semi-arid region aspen afforestation and can effectively improve the water utilization efficiency and remarkably improve the afforestation survival rate.

The invention relates to a method for improving the shoot cutting rooting rate of Corylus heterophylla Fisch. and C. avellana L. in an arid region. According to the method, based on the special climatic features of the arid region, a shading net is erected on the upper portion of the outside of a simple greenhouse, facilities such as a micro-fog humidification system and a cutting bed installation micro-spraying device are installed in the greenhouse, the environmental conditions of light, temperature and humidity needed by the shoot cutting seedlings of the Corylus heterophylla Fisch. and C. avellana L. are regulated and controlled, and therefore the purpose of increasing the rooting rate can be achieved. By means of the method, the shoot cutting effect of the Corylus heterophylla Fisch. and C. avellana L. planted under environmental conditions of the arid region is greatly improved, the rooting rate is improved to 76.35% in the year of 2013 from 25.73% in the year of 2012, seedling growing cost is reduced by 50% or so, the major breakthrough of rapidly propagating the improved variety of seedlings of the Corylus heterophylla Fisch. and C. avellana L. in the arid region is achieved, a seedling growing method high in propagating efficiency and low in cost is provided for rapidly propagating improved variety of sound seedlings, and the improved variety of sound seedlings are rapidly provided for large-scale promotion and forestation of the Corylus heterophylla Fisch. and C. avellana L.

The invention discloses a film mulched wheat planting method achieving automatic seedling emergence, weeding and evaporation reducing purposes. The planting method is suitable for automatic seedling emergency and water-saving cultivation of film mulched wheat in arid and semi-arid zones. The planting method is characterized in that by the use of the stronger puncturing functions of embryos of the wheat under the dark condition, and the characteristics of small weed seeds and poor embryo puncturing capability, the ground is leveled after planting, and then a degradable micromembrane with the thickness being smaller than 0.004 mm or a degradable black mulching film with the thickness which is less than or equal to 0.006 mm is subjected to full-field covering, and a key technical method that the film is covered with soil with the thickness of 1 to 2 cm, the total of the sowing depth and the soil covering thickness is less than or equal to 5 cm is adopted, so that the purposes that the wheat punctures the film automatically to realize seedling emergence, the weeds cannot puncture the film and is killed due to yellowing, and the full-field plastic film mulching inhabits soil moisture from evaporation efficiently to achieve water conservation and weed control are achieved. The planting method is simple to operate and convenient to implement, can ensure the unit area yield of the wheat, and can improve the moisture utilization efficiency of the wheat and eliminate harm caused by wheat weeds.

The invention discloses a blasting method for complex rock masses of an open pit coal mine in an arid area. The blasting method comprises the following steps of blast hole arrangement, detonating network connection, inspection before detonating, detonating and treatment after detonating. According to the method, a low-detonation-force expanded ammonium nitrate fuel oil explosive with a wave impedance value similar to that of bed rocks is selected, so that the crushing effect of detonation gas on heterogeneous complex rock masses with joints and fracture development can be enhanced, and the crushing effect time of the detonation gas on the rocks is prolonged; small explosive bags are adopted for non-coupling segmented charging, so that when the explosive explodes, the crest value of the compression stress can be sharply reduced along with the increase of the distance from the charging surface to a blast hole wall, the blast hole gap effect is obvious, and the blasting effect is more sufficient; therefore, the volume of the blasted rock masses is small, the blasting muck pile is regular, and convenience is brought to safe operation of mining, loading and transportation; and meanwhile, the impact pressure of impact waves on blast hole rocks and the positive pressure acting time on the hole wall can be reduced, the number of blasting flying rocks is reduced, and the safety of coal mining is improved.

The invention provides a social and economic benefit accounting method for river source arid region water resource potential tapping and efficient utilization effects, which comprises the following steps: selecting indexes to establish a judgment matrix by using a matter-element analysis theory, dividing a classic domain and a node domain according to the judgment matrix, and taking the correlation degree as a data source for qualitatively evaluating social and economic benefits; constructing a C-D production function adapting to river source arid region characteristics, completely converting different elements into solar energy through the energy value theory; if colinearity exists between the different elements, using ridge regression to solve the problem of colinearity between the elements, and finally solving the inter-year water resource benefit specific value according to the obtained function to serve as a quantitative evaluation result; analyzing water resource potential tapping and efficient utilization conditions of the research area, and analyzing input and output to obtain social and economic benefit accounting results of the research area. According to the method, the index weight is calculated by using the AHP and the entropy weight method, the subjective influence is overcome, and the accidental problem of single evaluation is avoided by combining the qualitative method and the quantitative method, so that the accounting result is more accurate.

The invention relates to a method for planting nostoc flagelliforme in arid-area wasteland. Arid-area water and salt movement rules are fully considered in the nostoc flagelliforme planting process in the method, pressurized microspray irrigation is utilized to supplement water at the appropriate time, ground temperature is adjusted, water and salt are adjusted, growth of the nostoc flagelliforme and surrounding plants is promoted, creation of a low-salt environment required by a seedling stage is facilitated, growth of eremophytes relative to the nostoc flagelliforme is quick, shading protection is provided for growth of nostoc flagelliforme seedlings, and the effects of wind resistance and rainwater washing resistance are achieved for normal growth at a later stage. The method overcomes restraint of the salt-affected soil environment on growth of the nostoc flagelliforme, and technical support is provided for manual plantation of the nostoc flagelliforme and improvement of the arid-area ecological environment.

The invention relates to an underground water level regulation and control method for synergistically relieving soil desertification and secondary salinization of an arid area. The method comprises the steps: collecting data on the basis of analyzing the internal relation between desertification and secondary salinization of the arid area; calculating the critical burial depth of the soil-salinized underground water; calculating the critical burial depth of the soil-desertified underground water; determining the root system length of the vegetation community in the research area; determining adesert area underground water level recovery mode and parameters; determining a salinization area underground water level reduction mode and parameters; and achieving underground water level regulation and control for synergistically relieving desertification and secondary salinization. The method has universality for solving desertification and soil secondary salinization caused by unreasonablemanagement and control of the underground water level, and reliable theoretical and technical supports are provided for guiding reasonable development and utilization of underground water resources inthe arid area and ecological restoration.