87 results about "Rocky desertification" patented technology

The invention belongs to the field of space earth observation technology and application, and discloses a remote sensing image stony desertification grading method, device and equipment based on a feature space, and the method comprises the steps: obtaining a remote sensing image, elevation data DEM and land utilization data of a research area, and carrying out the preprocessing; terrain correction is carried out on the area with the gradient larger than 25 degrees through an SCS + C terrain correction model; constructing a rock index RCRI and a vegetation index NDRE, and performing normalization; an RCRI-NDRE feature space is constructed; constructing a stony desertification index according to a distance formula from a point to a straight line; high-resolution remote sensing images are used for assisting visual interpretation of stony desertification sample points of different degrees, and grading thresholds between stony desertification of different degrees in the RCRI-NDRE feature space are calculated; and stony desertification grading is carried out based on the grading threshold value, and distribution conditions of stony desertification of different degrees are obtained. According to the method, remote sensing image data are extracted, and the RCRI-NDRE feature space of the rock index RCRI and the vegetation index NDRE is constructed, so that different degrees of stony desertification grading of the target area can be realized.

The invention discloses a stony desertification monitoring data analysis method and system based on data analysis, relates to the field of environmental governance, and solves the problem of poor application effect of an existing stony desertification monitoring data analysis method.The method comprises the steps that S1, a stony desertification monitoring area is divided into a plurality of stony desertification monitoring sub-areas, the method comprises the following steps: S1, carrying out historical rock coverage monitoring on each stony desertification monitoring sub-region to obtain surface rock monitoring data, S2, carrying out historical vegetation coverage monitoring on each stony desertification monitoring sub-region according to the surface vegetation monitoring data to obtain surface vegetation monitoring data, and carrying out historical rock coverage monitoring on each stony desertification monitoring sub-region according to the surface vegetation monitoring data. And S3, performing treatment qualification evaluation on the rocky desertification monitoring area according to the surface rock monitoring data and the surface vegetation monitoring data. The rocky desertification monitoring data analysis method is high in accuracy and comprehensiveness.

The invention discloses an afforestation device and an afforestation method for precious tree species in a stony desertification area, and relates to the technical field of afforestation devices. Comprising a vehicle body, the vehicle body is provided with a marking mechanism, the marking mechanism comprises a marking material storage box, and the marking material storage box is installed on the vehicle body through a supporting frame; one end of the connecting pipe is connected to the marking material storage box, and the other end of the connecting pipe is provided with the connecting cavity; and the lifting sliding frame is arranged on one side of the vehicle body. By arranging the marking mechanism, marking powder can be supplied into an output head through a marking material storage box, the output head is driven to move downwards based on a lifting control assembly, a second spring gradually returns from a compressed state, when the output head moves downwards by a certain distance, a ball head rod is separated from the bottom of the output head, and the blocking effect is relieved; the marking powder can be output from the output head, the marking purpose is achieved, and the planting position can be judged conveniently.

The invention relates to a resourceful treatment method for a bauxite ore washing tail mud reservoir, which comprises the following specific steps: 1, carrying out cyclone classification on tail mud in the tail mud reservoir, and separating out coarse particles with A / S greater than or equal to Y and A / Slt; and Y fine particles. And 2, carrying out flotation treatment on the coarse particles. And potassium carbonate is added as a dispersing agent and a pH value adjusting agent, the pH value of the ore pulp is adjusted to 8.0-10.5, then sodium oleate is added as a collecting agent, and finally bauxite concentrate and flotation tailings are obtained. And 3, dehydrating the fine particles to obtain dehydrated tail mud with the water content of less than or equal to 20%. And 4, adding the flotation tailings and the dehydrated tail mud into a curing agent or a soil conditioner to form cultivable soil which is used for ecological restoration of the stony desertification area. Potassium carbonate is used for replacing sodium carbonate to reinforce flotation, so that tailings can be used as potassium-rich cultivation soil; the dam break risk can be eliminated after the tail mud is dehydrated; tailings and fine particles are compounded to form cultivation soil to treat stony desertification, silicon fertilizer is synchronously produced, the annual income is larger than or equal to 0.3 million yuan, and safe, resource and ecological cooperative treatment is achieved.

An artificial rainwater collection irrigation method for broken hillside cultivated land in a stony desertification area comprises the steps that data such as broken bed rock surface trend and cultivated land distribution are measured in the field; calculating some important parameters by analyzing multi-year meteorological data: the mode of the number of rainwater collection cycles every year, the mode of rainfall in a rainfall period, the mode of illumination duration in an illumination period and the mode of single rainfall intensity; an artificial rainwater collecting surface is arranged, the material, the structure and the angle of the artificial rainwater collecting surface all have certain particularity, a confluence system is constructed, a low-position water collecting pool and a high-position water storage pool form an irrigation system, and the rainwater collecting area, the inner diameter of a confluence pipe, the storage battery capacitance, the photovoltaic panel area and the water pump power are calculated based on the important parameters; rainwater is collected in the main rainfall period in one year, and irrigation is conducted in the dry season. The system is particularly suitable for irrigation of broken hillside cultivated land in a stony desertification area with poor lithiasis ditch integrity, and irrigation requirements, a water collecting surface, a confluence path, a water collecting pool, a water storage tank and light energy can be integrally matched.

The invention discloses a stony desertification differentiation treatment method based on regional analysis, and relates to the technical field of environmental protection stony desertification treatment, and the method comprises the steps: obtaining the vegetation ecological image data of a stony desertification region through a remote sensing technology, obtaining the vegetation image of the stony desertification region in a manner of taking a remote sensing image as a main part and taking a computer image as an auxiliary part; processing the vegetation image of the stony desertification area to obtain a processed vegetation image; the method comprises the following steps: acquiring meteorological data of a stony desertification area, and performing spatial interpolation through an inverse distance weighting method to obtain gridding meteorological data with the spatial resolution of 1km * 1km; constructing a drought monitoring model of a vegetation moisture index, a vegetation water supply index, a vegetation temperature index, an air temperature and a vegetation drought index in the stony desertification area through the processed vegetation image and the grid meteorological data; according to the method, the drought and vegetation conditions of the stony desertification area are evaluated through the vegetation coverage, the minimum vegetation water demand threshold value and the vegetation suitable ecological water demand threshold value, and the stony desertification treatment efficiency is improved.

The invention discloses a land stony desertification ecological risk evaluation method based on multi-source aerospace data, and relates to the technical field of ecological risk evaluation. Comprising the following steps of multi-source air and space data acquisition and space-time collaborative registration, multi-dimensional ecological environment factor dynamic extraction, stony desertification ecological risk three-dimensional index system construction, multi-source weight fusion and dynamic risk evaluation, space-time dynamic early warning and risk transfer simulation and differential ecological management adaptive optimization. The method can provide high-precision and multi-dimensional space-time consistent basic data for risk evaluation through multi-source space-time collaborative registration of space-time data and integration of remote sensing, meteorological and ground monitoring data, breaks through the limitation of single-dimensional evaluation through construction of a three-dimensional index system, can systematically reveal risk causes, and improves the risk evaluation efficiency. And subjective and objective combination weighting balances expert experience and data laws, so that the crossing from static evaluation to dynamic early warning is realized, and finally, optimization measures are treated and optimized in a differentiated manner through spatial layout and benefit cost optimization.

The invention relates to the technical field of satellite remote sensing, and discloses a kNDVI-based object-oriented karst mountainous area stony desertification classification method and system, and the method comprises the steps: obtaining a remote sensing image and elevation data of a target region, and carrying out the preprocessing; obtaining vegetation coverage raster data, rock coverage raster data and texture parameters based on the preprocessed remote sensing image, and obtaining a slope and an altitude based on the preprocessed elevation data; fusing the vegetation coverage raster data, the rock coverage raster data, the texture parameters, the gradient, the altitude and a plurality of wavebands of the preprocessed remote sensing image, and outputting a multi-waveband remote sensing image; removing an area of which the building index is greater than 0 in the multiband remote sensing image, and segmenting the multiband remote sensing image after removal processing; and according to the segmentation result, carrying out stony desertification grade division by using the membership degree, and outputting a classification result. According to the invention, the extraction precision of stony desertification information can be improved, so that the classification accuracy is improved; meanwhile, the regional adaptability is improved.

The utility model discloses a photovoltaic pile foundation suitable for rocky desertification high abrupt slope soil-rock combined geology, which mainly comprises anchor bars, an anchor bar foundation small bearing platform and a steel sleeve, the upper end of the steel sleeve is provided with an adjusting bolt, and the lower end of the steel sleeve is arranged in the anchor bar foundation small bearing platform; the anchor bars penetrate through the bottom of the anchor bar foundation small bearing platform, the upper parts of the anchor bars are arranged in the anchor bar foundation small bearing platform, and the lower parts are arranged in the anchor bar holes; the steel sleeve is welded and connected with an anchor bar in the anchor bar foundation small bearing platform through round steel; and concrete is poured into the anchor bar holes and the small anchor bar foundation bearing platform. The photovoltaic pile foundation has the advantages of being simple and safe in structure, wide in application range, high in adaptability to local conditions and the like, can be widely applied to various terrain environments, and can be constructed on soil steep slopes, especially on rocky desertification high steep slope soil-rock combined geology which is difficult to construct through a conventional foundation.

The invention discloses a method for estimating the soil loss amount in a karst region, and the method comprises the steps: determining a negative exponential function relation between a rock exposure rate and the soil loss amount based on field in-situ observation; according to the negative exponential function relation, stony desertification factors used for quantifying the inhibition effect of rock exposure on soil erosion are constructed; introducing the stony desertification factor as a multiplicative factor into an RUSLE model, and establishing an RUSLE-D model; and obtaining each RUSLE factor data and rock exposure rate data of the target area, inputting the RUSLE-D model, and calculating the soil erosion amount of the target area. According to the invention, the accuracy and practicability of model estimation and prediction are improved.

The invention provides enterobacter GD-13 with carbon sequestration capacity and application thereof, and relates to the technical field of microorganisms. The enterobacter disclosed by the invention is classified and named as Enterobacter huxiensis, and the preservation number of the enterobacter is CGMCC (China General Microbiological Culture Collection Center) No.31726. The enterobacter disclosed by the invention is separated from soil between fixed plates in a photovoltaic field area of a stony desertification area. Experiments show that the enterobacter can keep good growth activity and carbon sequestration capacity in a salt culture medium with extremely low nutrition, the carbon sequestration capacity of the enterobacter can be improved to different extents when an inorganic carbon source is externally added, particularly, the carbon sequestration capacity of the enterobacter is remarkably improved under the condition that the inorganic carbon source Na2CO3 is externally added, and the carbon sequestration capacity of the enterobacter can be further improved when an electron donor is externally added. The enterobacter obtained through separation has important scientific significance in improving the carbon sequestration and sink increasing potential of soil, promoting high-quality development of the photovoltaic industry in the stony desertification fragile area and relieving global warming.

The invention discloses an ecological restoration method for a stony desertification mountainous region, and relates to the technical field of ecological restoration, and the ecological restoration method specifically comprises the following steps: S1, uniformly laying a nutrient clay matrix and fertile soil on the surface of an exposed stony desertification mountainous region to form a double-layer ecological alien soil structure; s2, mixed fertilizer is applied, then transverse intercepting ditches are dug in sequence from high to low according to the slope surface, vermiculite, mushroom bran, fertile soil and the mixed fertilizer are laid in the ditches in sequence from bottom to top, and the ditches are laid to the 2 / 3 position of the depth of the intercepting ditches; s3, planting fruit tree seedlings on the slope surface soil outside the intercepting ditches, and planting drought-resistant and waterlogging-resistant pasture in the intercepting ditches; s4, when the fruit tree seedlings grow to saplings, planting traditional Chinese medicinal materials among the fruit trees; after crowns of the fruit trees are formed, shade-tolerant forage grass is planted between the fruit trees; s5, timely watering, topdressing, seedling reseeding, pest control, regular harvesting and repeated sowing of economic crops are carried out. According to the method, the ecological environment of the stony desertification mountain land can be restored, and local economic benefits can be increased.

The invention relates to the technical field of rhizoma bletillae planting, in particular to a method for planting rhizoma bletillae in rocky desertification mountainous regions under photovoltaic panels. The method comprises the following steps: selecting a rocky desertification mountainous region on which a photovoltaic panel is built; after a cultivation bag is adopted to be put into cultivation soil, the cultivation bag is placed under a photovoltaic panel, the daily average illumination intensity under the photovoltaic panel is 220-300 [mu] mol / m < 2 >. S, and the content of organic matter in the cultivation soil is larger than or equal to 15 g / kg; the rhizoma bletillae seedlings are planted in the cultivation bags filled with the cultivation soil, and the stem diameter of the rhizoma bletillae seedlings is larger than or equal to 7 mm; the chlorophyll SPAD value of the rhizoma bletillae seedlings is 28-35; after the rhizoma bletillae seedlings are planted, watering is conducted regularly, and compound fertilizer dressing or foliar fertilizer spraying is conducted. The rhizoma bletillae is planted in the stony desertification area, so that the emergence rate of the rhizoma bletillae is increased, and the problems of high management and protection cost, low yield, low income or loss and the like caused by difficulty in drought resistance, hail prevention and prevention of diseases, weeds and weeds are solved.

The invention relates to the technical field of data analysis, and discloses a karst mountain flexible photovoltaic ecological restoration analysis method and system. The method comprises the following steps: carrying out bare rock rate detection on a stony desertification area through a line transect probe method to obtain stony desertification intensity grading data, and carrying out association analysis on a flexible photovoltaic panel height parameter and microclimate monitoring data to obtain an under-panel microenvironment regulation and control parameter; performing water resource efficiency calculation on the collection amount of the water collection tank according to the microenvironment regulation and control parameters to obtain a water collection-irrigation cooperation index, and performing comprehensive evaluation on stony desertification intensity grading data and a vegetation restoration index through a membership function method to obtain an ecological restoration effect evaluation index. And performing coupling processing on the water collection-irrigation cooperation index and the mushroom dreg matrix ratio data to obtain a circular agricultural benefit evaluation result. The integrated development efficiency of the photovoltaic industry and ecological restoration in the karst mountain stony desertification area and the utilization efficiency of water resources are improved.

The invention relates to the technical field of rocky desertification area hydrological process monitoring and soil moisture migration research, and discloses a device and a method for researching the moisture permeation rate of an in-situ rock-soil interface in a rocky desertification area, a water inlet device comprises a water tank, a rotor flow meter and a connecting pipeline, and the water tank is arranged at a position higher than the rotor flow meter; the water outlet device comprises a water inlet, an internal flow stabilizing cavity and a plurality of small water outlet holes uniformly distributed in the length direction, the water inlet is formed in the lower portion of the flow stabilizing cavity and connected with the connecting pipeline, and the small water outlet holes are formed in the upper portion of the flow stabilizing cavity; the bracket is used for fixing the water outlet device at the upper part of the exposed rock surface, so that the small water outlet holes are distributed close to the rock surface; the controllable rock surface flow is stably generated under the complex rock-soil interface condition, a reliable technical platform is provided for in-situ moisture permeation rate measurement, and the technical bottlenecks that an existing device cannot simulate rock surface flow concentration and is difficult to adapt to a heterogeneous interface are overcome.

The invention discloses a high-yield cultivation method for zanthoxylum armatum in a stony desertification area, and belongs to the technical field of economic forest cultivation. The invention discloses a high-yield cultivation method for zanthoxylum armatum in a stony desertification area. The method comprises the steps of soil preparation and pond digging, field planting, fertilization, fruiting branch culture, growth regulation, pest control, irrigation, harvesting and pruning, and garden cleaning and overwintering. According to the high-yield cultivation method for zanthoxylum armatum in the stony desertification area, zanthoxylum armatum is planted in the stony desertification area, soil and fertilizer conservation can be conducted on the land on the basis of ecological restoration, the scientific management level of farmer households can be improved, economic development of the area is promoted, and the ecological environment is protected.

The present invention discloses a differential treatment method for rocky desertification based on regional analysis, which relates to the technical field of environmental protection for rocky desertification treatment. It includes obtaining vegetation ecological image data of the rocky desertification area through remote sensing technology, obtaining vegetation images of the rocky desertification area in the form of mainly remote sensing images and supplemented by computer images, processing the vegetation images of the rocky desertification area to obtain processed vegetation images; obtaining meteorological data of the rocky desertification area, performing spatial interpolation through the inverse distance weighting method to obtain gridded meteorological data with a spatial resolution of 1 km × 1 km; constructing a drought monitoring model for the vegetation water index, vegetation water supply index, vegetation temperature index, and air temperature and vegetation drought index in the rocky desertification area through the processed vegetation images and the gridded meteorological data; the present invention evaluates the drought and vegetation conditions in the rocky desertification area through the vegetation coverage, the minimum water requirement threshold of the vegetation, and the suitable ecological water requirement threshold of the vegetation, improving the efficiency of rocky desertification treatment.

The application discloses a kind of real-time ecological monitoring systems of rocky desertification photovoltaic area based on multi-source sensing fusion, including support module, power generation module, weather sensing module, soil monitoring module and wireless communication module, power generation module and weather sensing module are installed on support module, soil monitoring module is installed on the side of support module, wireless communication module is set in the top of support module, wireless communication module is coupled with weather sensing module and soil monitoring module, and wireless communication module is connected with cloud server through wireless network, and the controller of terminal equipment is connected with cloud server through wireless network.The application can ensure the long-term stable installation of monitoring equipment in harsh environment through the synergistic effect of the four-pyramid structure at the bottom of the fixed pile, the side fixed anchor and the locking agent bottle;The application realizes labor-saving operation through worm gear transmission and slidable handle design, greatly reduces the construction difficulty in complex terrain, and improves the efficiency and adaptability of system deployment.

The present invention proposes an efficient restoration method for epiphytic vegetation on bare rocks in peak forest depressions in rocky desertification areas, and belongs to the technical field of rocky desertification control. The restoration steps include: (1) terrain analysis and classification; (2) preparation of planting substrates; (3) laying and connection of planting devices; (4) vegetation selection and planting; (5) management and maintenance. The method includes classification analysis of bare rock terrain in peak forest depressions, and rational use of different planting substrates and different epiphytic plant species to achieve the purpose of vegetation restoration in difficult terrain in peak forest depressions in rocky desertification areas. The method of the present invention can effectively utilize natural resources, improve the hydrological conditions in peak forest depressions, reduce soil erosion, and increase the organic matter content and water retention capacity of bare rock surfaces. It has the advantages of simple operation, low cost, and significant effect, and provides an effective way for vegetation restoration in peak forest depressions.

The invention relates to the technical field of stony desertification treatment equipment, in particular to a seedling cultivation device and method for stony desertification treatment, and the seedling cultivation device comprises a cultivation vehicle body and a cultivation pipe, the cultivation vehicle body is provided with a nutrient solution feeding mechanism, and the nutrient solution feeding mechanism comprises a nutrient solution box body and a liquid guide pipe; after the cultivation vehicle body moves, the liquid guide pipe corresponds to an upper port of the cultivation pipe, and the cultivation pipe is fixedly arranged on one side of the nursery stock; a sealing plate is rotationally arranged at the upper end opening of the cultivation pipe, and a permeation water absorption cotton ball is arranged in the cultivation pipe and connected with a permeation piece through a cotton thread. The cultivation pipe is buried on one side of the nursery stock, a water source and a nutrient solution are carried through the cultivation vehicle body, the irrigation efficiency is improved while labor force is reduced, the survival rate of the nursery stock can be improved as long as water is supplemented into the cultivation pipe regularly, evaporation of water and the nutrient solution can be reduced through the pre-buried cultivation pipe under the action of a sealing plate, and the survival rate of the nursery stock is increased. The survival rate of the seedlings is further improved.

The invention discloses a photovoltaic vegetation light-supplementing sprinkling irrigation control system for a stony desertification mountain land, and relates to the technical field of agricultural Internet of Things and ecological environment regulation and control. According to the system, vegetation units under a photovoltaic array are finely divided, and an underground root system imaging technology and multi-dimensional root system structure analysis are combined; precise measurement of key parameters such as the horizontal extension length of the sea-buckthorn vegetation root system, the rhizosphere connectivity, the complexity of a fine root net structure, the capillary water effect and the like is achieved, and the transpiration potential and the water supply condition of the vegetation are comprehensively reflected. The first priority regulation and control area and the second priority regulation and control area are scientifically identified by constructing the transpiration cooperation index and combining the local air humidity, the soil temperature and the photovoltaic shielding intensity which are collected in real time, it is ensured that light supplementing spray irrigation regulation and control are accurately focused on the area with the high transpiration capacity and obvious water stress, and the water resource utilization efficiency and the light supplementing effect are greatly improved. Meanwhile, by dynamically matching the sprinkling irrigation time period and the photovoltaic shielding intensity, collaborative optimization of sprinkling irrigation and light supplement is achieved.

The invention provides pseudomonas GD-9 with carbon sequestration capacity and application of the pseudomonas GD-9, and relates to the technical field of microorganisms. The pseudomonas disclosed by the invention is classified and named as pseudomonas Pseudomonasp, and the preservation number of the pseudomonas Pseudomonasp is CGMCC (China General Microbiological Culture Collection Center) No.31725. The pseudomonas disclosed by the invention is separated from soil in a stony desertification photovoltaic field area in Stone Lin County in Yunnan province. Experiments show that the pseudomonas can keep good growth activity and carbon sequestration capacity in a salt culture medium with extremely low nutrition, and the carbon sequestration capacity of the pseudomonas is remarkably improved under the condition that only an inorganic carbon source NaHCO3 is added. The pseudomonas obtained through separation has important scientific significance for improving the carbon sequestration and sink increasing potential of soil and promoting high-quality development of the photovoltaic industry in the stony desertification fragile area.

The application discloses a rocky desertification rapid identification method and system, and the method comprises the following steps: inputting a ground surface image into a lightweight semantic segmentation model, and outputting bare rock area pixels, vegetation area pixels and other area pixels from the lightweight semantic segmentation model; determining a base rock exposure rate and a vegetation coverage degree according to the bare rock area pixels, the vegetation area pixels and the other area pixels; determining an interference intensity grade according to selection information; inputting a soil layer thickness measurement value, slope data, the base rock exposure rate, the vegetation coverage degree and the interference intensity grade into a multi-factor comprehensive evaluation model to calculate a rocky desertification comprehensive index; and calculating a rocky desertification grade according to a preset grade determination threshold and the rocky desertification comprehensive index, and displaying a calculation result. The application solves the problem that a single index cannot comprehensively reflect the rocky desertification degree, and unifies different factors into a comprehensive index, so that the evaluation result is scientific, the work efficiency of ground investigation is improved, and the work intensity of workers is reduced.

The present invention provides a Pseudomonas GD-9 with carbon fixation ability and its application, which relate to the field of microbial technology. The Pseudomonas described in the present invention is classified and named as Pseudomonas Pseudomonas sp., and the deposit number is CGMCC No. 31725. The Pseudomonas described in the present invention is isolated from the soil in the rocky desertification photovoltaic field area of ​​Shilin County, Yunnan Province. Experiments have shown that the Pseudomonas can maintain good growth activity and carbon fixation ability in an extremely low-nutrient salt culture medium, and its carbon fixation ability is significantly improved under the condition of only adding an inorganic carbon source NaHCO3. The Pseudomonas isolated and obtained by the present invention has important scientific significance for improving the soil carbon fixation and sink potential and promoting the high-quality development of the photovoltaic industry in rocky desertification vulnerable areas.

This invention discloses a method for preparing graded porous aggregate-type soil using phosphogypsum. The main steps of the method include: adding air-dried phosphogypsum, cement, bentonite, and plant straw into a granulator in a certain proportion; spraying a certain amount of water in batches; and continuing to rotate the granulator to obtain aggregates; the aggregates are then treated with CO2 mineralization to obtain phosphogypsum-based aggregates with suitable acidity and alkalinity; preparing porous soil aggregates according to gradation requirements; composting to prepare organic fertilizer; and mixing the phosphogypsum-based soil aggregates and organic fertilizer to obtain soil suitable for planting. The soil obtained by this invention has a graded porous structure with large pores between particles and micropores within particles, good water permeability and air permeability, sufficient fertility, and good water stability of the aggregates. It can effectively solve the problem of compaction in the existing utilization of phosphogypsum soil. The method is simple to operate, has low material costs, and requires mature equipment, making it particularly suitable for providing a high-quality and inexpensive source of planting soil for rocky desertification areas.

The invention belongs to the technical field of planting, and discloses a method for cultivating toona ciliata in a stony desertification area. The method for cultivating toona ciliata in the stony desertification area comprises the following steps: (1) selecting a land parcel with sand and stones as bases, and digging holes for later use; (2) mixing a water-retaining agent, soil, a fertilizer and water to serve as a substrate; (3) farmyard manure and toona ciliata seedlings are sequentially put into the pits in the step (1), and then a matrix is added for landfill until the matrix is exposed out of the ground; the fertilizer comprises urea, sodium carboxymethyl cellulose, calcium alginate, potassium nitrate, magnesium chloride and crop straw powder. The water-retaining agent comprises composite acid, soybean meal, attapulgite, potassium persulfate, N, N '-methylene bisacrylamide and ferric salt, and the composite acid comprises acrylic acid, citric acid, 2-acrylamido-2-methylpropanesulfonic acid, polyaspartic acid, polyleucine and polyglutamic acid.By means of the toona ciliata cultivation method, the survival rate of toona ciliata can exceed 90%, for example, the survival rate reaches 94-98%.

The application discloses a broad-spectrum growth promoting bacterial agent combination for oil camellia and oil tea, a biological preparation and application thereof, and relates to the field of microbial technology.The endophytic bacteria are separated from healthy oil camellia plants, the abilities of the strains in dissolving phosphorus, fixing nitrogen, producing IAA, producing iron carrier and antagonizing the pathogenic bacteria of oil tea anthracnose are determined, the onion Burkholderia and Aspergillus niger with excellent comprehensive growth promoting functions are screened to prepare a combined bacterial agent, and the combined bacterial agent is verified to have a significant growth promoting effect on the oil camellia and the oil tea through a potting experiment.The combined bacterial agent promotes the growth, nutrient absorption and root development of the oil tea, significantly improves the enzyme activities related to the carbon, phosphorus and nitrogen cycles of the soil, and realizes the overall optimization of the "plant-soil" system.The application finds a broad-spectrum mixed bacterial agent suitable for the artificial planting of the oil camellia and the oil tea in a rocky desertification area, effectively improves the adaptability of the plants in the rocky desertification habitat, and provides a new microbial technical approach for the collaborative repair of multiple tree species in the area.

The invention discloses an environmental moisture detector for cultivated land in a stony desertification area, and relates to the technical field of environmental detection, the environmental moisture detector comprises a stand column and a spiral blade surrounding the stand column, the spiral blade is fixedly connected with the stand column, and the environmental moisture detector also comprises a plurality of moisture probes which are longitudinally arranged and distributed on one side of the stand column, the double-layer pipeline is mounted at the tail end of the moisture probe, used for pushing the moisture probe to extend outwards in a stepped manner and capable of automatically rotating and displacing to avoid obstacles; the driving mechanism is arranged on the double-layer pipeline and capable of driving the double-layer pipeline to horizontally displace; the moisture probe is pushed by the double-layer pipeline to extend outwards in a step shape, adaptive distribution is achieved according to the growth characteristics of plant roots from near to far and from shallow to deep, the detection adaptability and pertinence are improved, the moisture probe and the double-layer pipeline are connected through the spiral hook, automatic rotation is achieved to avoid obstacles, and the detection efficiency is improved. The method adapts to a complex geological environment, and the overall detection efficiency is improved.

The utility model is applicable to the technical field of seedling planting, and provides a seedling planting device for water collection and afforestation in a stony desertification area, which comprises a paper cultivation box for water collection and afforestation in the stony desertification area, the paper cultivation box comprises a bottom cover, a foldable paperboard is arranged on the bottom cover, a clamping plate and a clamping hole are arranged on the paperboard, and the clamping plate is provided with a clamping hole. The clamping plate is matched with the clamping hole; the folding plates are arranged on the paperboard; the water collecting covers are symmetrically arranged on the paper cultivation box, a plurality of flow guide grooves used for collecting rainwater are formed in the water collecting covers, and semicircular grooves used for planting nursery stocks are formed in the water collecting covers. According to the seedling planting device for water collection afforestation in the stony desertification area, the technical problem that the survival rate of seedlings is low due to the fact that limited rainfall is difficult to effectively concentrate in a soil layer of a seedling root system in a traditional afforestation mode is solved.

The invention discloses a stony desertification monitoring system based on data analysis, and relates to the technical field of monitoring data processing, the system firstly uses a high resolution DEM and a remote sensing image to carry out regular grid division on a monitoring area, constructs the rock exposure rate of each monitoring unit and determines a potential stony desertification expansion area; through a spatial feature analysis module, GPS positioning and astronomical epoch calculation are combined, the solar declination, the hour angle, the elevation angle and the azimuth angle are calculated according to the time step length, the grid self-shading state is determined, and the rock shadow index is constructed. And the micro-terrain regulation and control analysis module is used for calculating a surface regulation and control coefficient based on local elevation fitting, residual elevation, gradient and stagnant water capacity, and carrying out dual-condition judgment on the initial stage of potential stony desertification. The hydrological effect prediction module collects the soil moisture content, evaporation, runoff and condensation amount in real time, calculates the soil moisture fracture index, generates a grading strategy according to the risk grade, and achieves rainwater retention, soil permeation and surface runoff optimization.