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57 results about "Rocky desertification" patented technology

Resourceful treatment method for bauxite ore washing tailing mud reservoir

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.
Owner:HENAN DOUBLE-HEADED EAGLE TECHNOLOGY CO LTD

Artificial rainwater collection irrigation method for broken hillside cultivated land in stony desertification area

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.
Owner:GUIZHOU NORMAL UNIVERSITY

Land stony desertification ecological risk evaluation method based on multi-source aerospace data

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.
Owner:河南省地质研究院

KNDVI-based object-oriented karst mountainous area stony desertification classification method and system

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.
Owner:SHAOGUAN METEOROLOGICAL BUREAU OF GUANGDONG PROVINCE

Method for estimating soil loss amount in karst region

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.
Owner:GUIZHOU NORMAL UNIVERSITY

Method for planting rhizoma bletillae in rocky desertification mountainous region under photovoltaic panel

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.
Owner:GUIZHOU CROP VARIETIES RESOURCE INST

Karst mountain flexible photovoltaic ecological restoration analysis method and system

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.
Owner:GUIZHOU UNIV +1

Device and method for researching moisture permeation rate of in-situ rock-soil interface in stony desertification area

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.
Owner:GUIZHOU UNIV

A real-time ecological monitoring system for a rocky desertification photovoltaic area based on multi-source sensor fusion

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.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD

Nursery stock cultivation device and method for stony desertification treatment

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.
Owner:INSTITUTE OF ECOLOGICAL PROTECTION & RESTORATION CHINESE ACADEMY OF FORESTRY SCIENCE

Photovoltaic vegetation light supplementing and sprinkling irrigation control system for stony desertification mountainous region

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.
Owner:SOUTHWEST FORESTRY UNIVERSITY

A rocky desertification rapid identification method and system

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.
Owner:CHINA GEOLOGICAL SURVEY CHANGSHA NATURAL RESOURCES COMPREHENSIVE SURVEY CENT

Pseudomonas GD-9 with carbon fixation ability and its application

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.
Owner:CHINA INST OF WATER RESOURCES & HYDROPOWER RES +1

A method for preparing graded porous aggregate soil using phosphogypsum

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.
Owner:KUNMING UNIV OF SCI & TECH

Method for cultivating toona ciliata in stony desertification area

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%.
Owner:GUILIN FORESTRY RES INST

Broad-spectrum growth promoting microbial agent combination, bio- agent for tung tree and tea-oil tree and application thereof

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.
Owner:CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY

Environmental moisture detector for cultivated land in stony desertification 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.
Owner:YUNNAN AGRICULTURAL UNIVERSITY

Stony desertification monitoring system based on data analysis

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.
Owner:SOUTHWEST FORESTRY UNIVERSITY

A forest desertification treatment method

The application relates to the technical field of environmental protection, in particular to a forest desertification treatment method, which comprises the following steps: firstly, preparing a planting layer; then, transporting the planting layer to a desertification area; then, filling nutrient soil in the planting layer; then, planting plants in the nutrient soil; then, laying the planting layer on the surface of a stone wall; then, fixing the planting layer; then, watering the surface of the planting layer; and finally, spraying sticky mud on the surface of the planting layer. The planting layer is laid and fixed on the surface of the stone wall, and plants are planted in planting cavities in the planting layer, so that the influence of the slope gradient of the stone wall on the planting of the plants can be ignored, green plants can be effectively covered on steep stone walls, especially on huge stone blocks forming cliffs in mountain forests, and the desertification treatment effect of the mountain forests is improved.
Owner:HUNAN NITA CONSTR DEV CO LTD

Treatment method for vegetation-soil-microorganism synergistic remediation of stony desertification slope

The invention discloses a vegetation-soil-microorganism synergistic remediation treatment method for a stony desertification slope, and relates to the technical field of soil remediation, and the method comprises the following steps: S1, precise evaluation of site conditions: uniformly arranging 10m * 10m quadrats on a target slope by adopting a GPS positioning and field sampling combined method, and measuring the slope, rock exposure rate, soil thickness and soil organic matter content (SOM); s2, vegetation three-dimensional configuration and field planting: selecting local stress-tolerant species, and constructing a three-dimensional community according to a plant / cluster number ratio of (2-4): (2-4): (3-5); according to the method, vegetation-soil-microorganisms are regarded as an organic whole, a synergistic mutual promotion mechanism of the vegetation, the soil and the microorganisms is systematically constructed, the vegetation fixes a carbon source through photosynthesis, root exudates nourish the microorganisms, the soil provides a physical carrier and a basic environment for the vegetation and the microorganisms, and the microorganisms supply energy to the vegetation through nutrient conversion; and a forward circulation of vegetation soil fixation, soil bacterium cultivation and microbe vegetation promotion is formed.
Owner:ENSHI TUJIA & MIAO AUTONOMOUS PREFECTURE FORESTRY SCI RES INST (ENSHI TUJIA & MIAO AUTONOMOUS PREFECTURE FORESTRY SCI & TECH PROMOTION STATION)

Analysis Methods and Systems for Flexible Photovoltaic Ecological Restoration in Karst Mountains

This application relates to the field of data analysis technology and discloses a method and system for analyzing flexible photovoltaic ecological restoration in karst mountain areas. The method includes: obtaining karst desertification intensity classification data by detecting the bare rock ratio in the karst desertification area using the transect probe method; obtaining microenvironmental regulation parameters under the panels by correlating the height parameters of the flexible photovoltaic panels with microclimate monitoring data; calculating the water resource efficiency of the water collection trough based on the microenvironmental regulation parameters to obtain a water collection-irrigation synergy index; obtaining an ecological restoration effect evaluation index by comprehensively evaluating the karst desertification intensity classification data and vegetation restoration indicators using the membership function method; and obtaining a circular agriculture benefit assessment result by coupling the water collection-irrigation synergy index with the fungal residue substrate ratio data. This application improves the efficiency of the integrated development of photovoltaic industry and ecological restoration and the efficiency of water resource utilization in karst desertification areas.
Owner:GUIZHOU UNIV +1

Grassland desertification classification method and related device in alpine cold region

This application discloses a method and related apparatus for classifying rocky desertification in alpine grasslands, relating to the field of ecological environment monitoring and remote sensing assessment technology. The method includes: dividing a target area into multiple target sub-regions; obtaining the values ​​of influence factors for each target sub-region; processing the values ​​of each influence factor in each target sub-region to obtain the final value of each influence factor; performing a weighted summation of the final values ​​of each influence factor in each target sub-region to obtain a rocky desertification degree index for the target sub-region; and determining the rocky desertification level of the target sub-region based on the rocky desertification degree index. This application achieves high-precision and refined identification of the degree of rocky desertification in alpine grasslands, enhancing the scientific rigor and accuracy of rocky desertification classification in alpine grasslands.
Owner:NORTHWEST INST OF PLATEAU BIOLOGY CHINESE ACAD OF SCI +1

A method for researching rock-soil interface dry shrinkage cracks in rocky desertification area

The present application belongs to the technical field of rock and soil mechanics, and particularly relates to a method for researching rock-soil interface dry shrinkage cracks in a rocky desertification area, comprising the following steps: constructing a test container and setting a drainage hole at the bottom of the test container; selecting a plurality of natural block rock bodies and placing them in the test container, with the rock body head being located outside the test container; filling the test container with soil in the empty area to form a test sample; performing an arbitrary number of dry-wet cycles on the test sample, recording the crack development process, and recording the change in the water content in the soil during the crack development process. The present application has high flexibility and adaptability, can be designed into test samples of different sizes according to actual needs, and can select natural rock surfaces or specially designed rock surfaces according to needs, can design multiple soil layer thicknesses, rock surface geometric shapes, rock surface inclinations, etc., and the test can be repeated.
Owner:GUIZHOU UNIV

Seedling raising and moisturizing device for forest and grass vegetation in stony desertification photovoltaic field area

The invention discloses a stony desertification photovoltaic field forest grass vegetation seedling raising and moisturizing device, and relates to the technical field of stony desertification area ecological restoration and photovoltaic industry collaborative development, the stony desertification photovoltaic field forest grass vegetation seedling raising and moisturizing device comprises a photovoltaic module, and the photovoltaic module comprises a photovoltaic panel and an aluminum alloy frame fixed on the edge of the photovoltaic panel; the rainwater collecting and processing mechanism is used for collecting rainwater and using the rainwater as a water source for forest grass vegetation seedling raising and moisture preservation, meanwhile, dust on the photovoltaic assembly is cleaned in an auxiliary mode, and the rainwater collecting and processing mechanism is installed on the photovoltaic assembly and comprises a rainwater collecting assembly set and a cleaning assembly set which are connected with each other. The rainwater collection and treatment mechanism is arranged and used in cooperation with the photovoltaic assembly, a closed-loop system of rainwater collection, moisture preservation, cleaning and power generation is formed, clean energy production is achieved, forest grass vegetation growth is promoted through efficient moisture preservation, the ecological environment of the stony desertification area is improved, and collaborative development of the photovoltaic industry and ecological restoration is truly achieved.
Owner:YUNNAN ACAD OF FORESTRY +1

Sandy soil modifier as well as preparation method and application thereof

The invention relates to the field of sandy soil improvement, in particular to a sandy soil improver which comprises the following raw materials in parts by mass: 1 part of nano clay, 5-10 parts of a plant polymer adhesive, 5-15 parts of soluble plant hemicellulose and 5-15 parts of charcoal. Comprising the following steps: adding sodium polycarboxylate into nano-clay according to 0.1-0.5% of the nano-clay, and mixing; the amylopectin is prepared by crushing glutinous rice or extracting from glutinous rice or corn starch, adding rice bran powder into the amylopectin according to 10-20% of the amylopectin, and mixing; the glucomannan is extracted from the konjak; the straw or the rice husk is pyrolyzed in a high-temperature oxygen-deficient closed container to prepare the biochar. The sandy soil improver and sandy soil or sand are applied to ecological restoration of the following application scenes according to the proportion of 1: 10000: tailing pond ecological restoration, ecological restoration after sand making of mine solid waste, desert gobi ecological restoration and stony desertification ecological restoration. By adopting the technical scheme, the physical characteristics of the sandy soil or the sand can be optimized, and the moisture and fertilizer retention and maintenance capabilities of the sandy soil or the sand are improved.
Owner:佘书成

An ecological restoration plant configuration system and method in karst areas based on soil fixation and carbon sequestration

The present invention provides a plant configuration system and method for ecological restoration in karst areas based on soil consolidation and carbon sequestration enhancement. Classify ecological restoration projects, assign weights to the soil consolidation ability and carbon sequestration ability of plant species for ecological restoration projects, match plant species that meet the requirements for each region of ecological restoration projects, calculate the plant function target values for ecological restoration project regions and screen corresponding plants, calculate the total comprehensive evaluation value of plants, obtain the recommended values for ecological restoration vegetation configuration, and screen and output the corresponding plants. According to the degree of rocky desertification in the region where the ecological restoration project is located, the present invention rationally configures carbon sequestration plants and soil consolidation plants, and can more specifically select the idea of planting highly efficient carbon sequestration plants and highly efficient soil consolidation plants, which is beneficial to ecological benefits such as climate regulation and soil and water conservation, and greatly improves the scientificity, efficiency and effectiveness of plant configuration for ecological restoration projects.
Owner:CHONGQING INST OF GEOLOGY & MINERAL RESOURCES +1

A soilless spray-and-seed substrate and its use

PendingCN122349947ARevegetationSoil science
This invention discloses a soilless hydroseeding substrate and its application. The soilless hydroseeding substrate is composed of either Scheme A or Scheme B, or the substrate comprises two separately packaged components, namely Scheme A and Scheme B. Scheme A consists of the following components and their mass percentages: 5-10 parts decomposed corn stalks, 5-10 parts decomposed sugarcane bagasse, 3-6 parts rice husk charcoal, 20-30 parts crushed stone, 0.5-1 part binder, and 0.1-0.5 parts water-retaining agent. Scheme B consists of Scheme A with the addition of 2-3 parts seeds. The crushed stone has a particle size of 1-5 mm. This invention can solve the problems of poor soil quality and water and fertilizer retention capacity in rocky desertification areas, and the difficulties in soil sampling, high costs, and unstable soil layers encountered when using traditional topsoil methods for vegetation restoration.
Owner:CHINA ENERGY ENG GRP GUANGXI ELECTRIC POWER DESIGN INST

Intelligent bionic robot for stony desertification control

The utility model discloses an intelligent bionic robot for stony desertification prevention and control, which belongs to the field of bionic machines and artificial intelligence, and comprises a flying part and a walking part, the flying part is arranged above the walking part, the flying part comprises a middle main body, wings are arranged at four corners of the middle main body, and a solar panel is arranged on the top surface of the middle main body. An infrared camera is arranged on the side surface of the middle main body; the walking part comprises a shell, the left side and the right side of the shell are each provided with a set of bionic feet, the number of each set of bionic feet is four, and airborne equipment and a power source are arranged in the shell. According to the utility model, ground and air monitoring is considered at the same time, an air-ground sensing system is constructed, real-time monitoring is carried out on stony desertification frequently-occurring areas, according to local soil, weather conditions, plant growth vigor and other external environment factors, possible ecological disasters are predicted, reference prevention and treatment suggestions are provided through data analysis, and the system is suitable for popularization and application. The effect of assisting in improving the ecological environment is achieved, and the stony desertification prevention efficiency is improved.
Owner:GUIZHOU UNIV

Photovoltaic water resource collection and irrigation system for stony desertification mountainous area and operation method of photovoltaic water resource collection and irrigation system

The invention discloses a photovoltaic water resource collection and irrigation system for a stony desertification mountainous area and an operation method of the photovoltaic water resource collection and irrigation system, and belongs to the technical field of photovoltaic power generation and ecological restoration. The system comprises a photovoltaic array, a rainwater collection subsystem, a light abandoning and water lifting subsystem and a vegetation drip irrigation subsystem, the photovoltaic array is arranged on the slope surface of a side slope, a high-level pool is arranged at the slope top of the side slope, the rainwater collection subsystem is used for collecting and storing rainwater on a photovoltaic panel in the photovoltaic array, and the vegetation drip irrigation subsystem is used for collecting and storing the rainwater on the photovoltaic panel in the photovoltaic array. The light abandoning and water lifting subsystem is used for lifting the rainwater stored by the rainwater collecting subsystem to a high-level water tank in the light abandoning period of the photovoltaic array, and the vegetation drip irrigation subsystem is used for performing drip irrigation on vegetation below the photovoltaic panels and between the photovoltaic panels. Rainwater on the photovoltaic panel is collected and stored through the rainwater collection subsystem; the rainwater stored in the rainwater collection subsystem is lifted to a high-level water tank through the light abandoning and water lifting subsystem in the light abandoning period; and carrying out drip irrigation on vegetation below the photovoltaic panels and between the photovoltaic panels through the vegetation drip irrigation subsystem.
Owner:CHINA POWER CONSRTUCTION GRP GUIYANG SURVEY & DESIGN INST CO LTD

Stony desertification area water storage optimization method based on karst fissure modeling

The invention discloses a rocky desertification area water storage optimization method based on karst fissure modeling, and relates to the technical field of geological hydrological optimization, and the method comprises the steps: collecting macrotopographic information, micro-pore information and hydrological time series data of karst fissures, and carrying out the standardization processing, and generating a complete data set; performing multi-scale data fusion on the complete data set, and constructing a karst fissure three-dimensional digital model through COMSOL; fracture parameters are extracted from the karst fissure three-dimensional digital model and combined with hydrological time series data, and meanwhile, a TensorFlow deep learning framework is adopted to build a dynamic prediction model. According to the method, deep coupling of physical simulation and machine learning based on three-dimensional modeling is realized, and the prediction accuracy and the reliability of engineering application are improved.
Owner:贵州省地质矿产勘查开发局一〇一地质大队