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480 results about "Woodlot" patented technology

A woodlot is a parcel of a woodland or forest capable of small-scale production of forest products (such as wood fuel, sap for maple syrup, sawlogs, and pulpwood) as well as recreational uses like bird watching, bushwalking, and wildflower appreciation. The term woodlot is chiefly North American; in Britain, a woodlot would be called a wood, woodland, or coppice.

CCER forestry carbon sink project development system based on artificial intelligence technology monitoring

The invention discloses a CCER forestry carbon sink project development system based on artificial intelligence technology monitoring, and relates to the technical field of carbon sink monitoring and optimization. According to the CCER forestry carbon sink project development system based on artificial intelligence technology monitoring, space-time estimation is carried out on CCER forestry carbon sink project data through the deep learning model, and the dynamic change of the carbon sink amount is accurately predicted. Spatial features are extracted through a convolutional neural network, time sequence data are analyzed in combination with a long-short-term memory network, and a carbon sink prediction model is constructed. And through statistical analysis and a spatial interpolation algorithm, carbon sink quantity change is monitored in real time, an abnormal trend is identified, and early warning is provided. Based on a mixed integer linear programming algorithm, forest land resource allocation and vegetation types are optimized, a carbon sink optimization scheme is generated, and carbon sink benefit maximization is promoted. And through an intelligent carbon sink management scheme, sustainable ecological development and green and economic popularization are assisted.
Owner:SHENZHEN GDR CARBON CO LTD

Forest land tree height measurement and determination method and system based on laser radar point cloud data

The invention provides a forest land tree height measurement and determination method and system based on laser radar point cloud data. Stress wave signals are collected based on a trunk base acoustic emission sensor array to generate an acoustic characteristic parameter set, the digital twin model is driven to complete forest stand structure topological optimization, and a three-dimensional growth vector model reflecting the internal mechanical state of a trunk is formed. And synchronously fusing high-precision slope point cloud data returned by the unmanned aerial vehicle laser radar in real time, correcting a terrain distortion error through a dynamic splicing algorithm in combination with stress distribution characteristics, and generating a crown segmentation boundary constrained by physical characteristics. And finally outputting a tree height parameter corrected by the abrupt slope topography through model iterative optimization and space vector analysis. According to the technical scheme, synchronous sensing of the three-dimensional shape and the mechanical state of the tree in the complex terrain environment is achieved, and the tree height measurement error is reduced.
Owner:SHENZHEN ACAD OF ENVIRONMENTAL SCI

Forest land ecosystem health assessment system

The invention discloses a forest land ecosystem health assessment system, and belongs to the technical field of environmental protection. Comprising the following modules: an intelligent sensing module for realizing omnibearing and high-resolution monitoring of the forest land ecological environment; the feature extraction module automatically extracts, standardizes and dynamically corrects the multi-dimensional features of the ecological system, and constructs a unified ecological index mapping model; the coupling analysis module is used for accurately identifying structural evolution characteristics and key conversion nodes of the ecological system; the health assessment module is used for constructing a dynamic self-adaptive ecological health assessment model, assessing the overall health state of the system and simulating the vulnerability and potential risk of the ecological system under different climate change scenes; the decision and visualization module is used for realizing efficient intelligent interaction and multi-scene decision analysis of ecological big data; and the restoration and regulation and control module intelligently generates a restoration path and an intervention strategy based on ecological risk assessment so as to improve the restoration capability and toughness of the ecological system.
Owner:XINTAI CITY STATE-OWNED TAIPING MOUNTAIN FOREST FARM

Airborne and SLAM point cloud automatic registration method for forest sample plot

The invention relates to an airborne and SLAM point cloud automatic registration method for a forest sample plot, and belongs to the field of laser point cloud data processing. The method comprises the following steps: cooperatively acquiring point cloud data of a forest land area through an airborne laser radar and SLAM equipment, and performing feature extraction on SLAM point cloud by adopting a random forest model to obtain crown edge contour points; segmenting the airborne point cloud by using a multi-level watershed algorithm and extracting crown edge contour points; using an FPFH algorithm to match position features of computer-borne data crown edge contour points and SLAM data crown edge contour points; and a transformation matrix is calculated through an RANSAC method, and the source point cloud is transformed to the reference of the target point cloud, so that complete spatial information description of the forest land scene is realized. According to the method, the edge contour points of the tree point cloud can be automatically extracted, the airborne point cloud and the SLAM point cloud data are registered, and the forest point cloud vertical structure information is fused, so that the forest structure information is finely inverted.
Owner:SHANDONG GEO-SURVEYING & MAPPING INST +1

Natural resource dynamic monitoring method and system based on multi-source data fusion, medium and equipment

The invention provides a natural resource dynamic monitoring method and system based on multi-source data fusion, a medium and equipment. The method comprises the following steps: acquiring satellite remote sensing data, aerial remote sensing data and ground monitoring data; performing data fusion on the satellite remote sensing data and the aerial remote sensing data to obtain fused data; integrating the fusion data with the ground monitoring data to obtain comprehensive monitoring data; performing terrain classification on the comprehensive monitoring data based on deep learning to obtain terrain classification results including cultivated land, construction land, water, forest land and grassland; and optimizing the ground feature classification result based on a space-time logic consistency algorithm to obtain an optimized classification result and ground feature change information. According to the method, through fusion of the multi-source data and classification optimization of the natural resources, in combination with deep learning and a spatial-temporal logic consistency algorithm, dynamic monitoring of the natural resources is realized, the monitoring precision is improved, and reliable data support is provided for natural resource management and environmental protection.
Owner:SUZHOU IND PARK SURVEYING MAPPING & GEOINFORMATION CO LTD

Forest land health state analysis method and system based on multi-source remote sensing image analysis

The invention relates to the technical field of remote sensing, and discloses a forest land health state analysis method and system based on multi-source remote sensing image analysis. The system comprises a multi-source remote sensing acquisition module, a feature extraction and fusion module, a health assessment module, a traceability analysis module, a strategy matching module, a visual reconstruction module, an early warning decision module and an execution feedback module, and constructs a multi-modal forest land observation data set by fusing multi-source remote sensing data of multispectrum, hyperspectrum, radar and thermal infrared. The comprehensive extraction of multi-dimensional information such as vegetation coverage, canopy biochemical characteristics, under-forest structures and surface thermal environments is realized, the limitation of single data source analysis is overcome, and the comprehensiveness and accuracy of forest land health condition evaluation are improved; through dynamic comparison of multi-stage remote sensing images and health risk level mapping, early identification and early warning of forest growth abnormity, degeneration trend and pest and disease risk are realized.
Owner:JILIN PROVINCIAL ACADEMY OF FORESTRY SCIENCES JILIN

Labeling method and system based on forest land remote sensing data

The invention provides an annotation method and system based on forest land remote sensing data. The method comprises the following steps: acquiring multi-source remote sensing data of a forest land; processing the multi-source remote sensing data; an improved Mask R-CNN network is adopted to extract optical image features, the weight of a near-infrared band is enhanced through a compression and excitation SE module, and feature fusion is carried out to obtain a multi-modal enhanced feature map; carrying out feature extraction by adopting a 3D convolutional network to obtain a multi-level three-dimensional space feature map; inputting the processed data into a Transform model to obtain a forest growth curve graph; performing initial labeling based on the feature map and the curve map to obtain an initial labeling result; performing morphological filtering on the initial labeling result to remove small-area noise, and optimizing a labeling boundary in combination with a superpixel segmentation algorithm to obtain an optimized labeling result; and generating a vector annotation file according to the optimized annotation result. Multi-dimensional information complementation of spectral features, three-dimensional structure features and time sequence dynamic features is achieved, and data availability and reliability are remarkably improved.
Owner:BEIJING ZHIKANG HUANYU TECHNOLOGY CO LTD

Large-scale forest land carbon reserve estimation method and system based on active and passive remote sensing technology

The invention discloses a large-scale forest land carbon reserve estimation method and system based on an active and passive remote sensing technology. The method comprises the following steps: acquiring satellite-borne laser radar data of different sensors in a research area, SAR data of an L wave band and a C wave band, multispectral remote sensing image data, airborne laser radar data, topographic data and land coverage category data containing forest land; discontinuous combined spaceborne laser radar canopy height products are obtained by using spaceborne laser radar data of different sensors; improving a geographic weighted regression model to estimate the canopy height of a continuous scale; extracting polarization parameters by using C-band SAR data, extracting vegetation indexes and texture indexes by using multispectral remote sensing image data, constructing characteristic variables together with topographic data, and screening the characteristic variables based on a variance reduction criterion; and constructing an overground carbon reserve inversion model, and carrying out large-scale forest land carbon reserve estimation. According to the method, the forest land carbon reserve estimation precision of the large-scale regional broken plot is improved.
Owner:WUHAN UNIV

Method, system, device, and medium for detecting forest disturbances based on fully polarized SAR images

The present invention discloses a method for detecting forest disturbances based on a full-polarization SAR image, which includes obtaining a full-polarization SAR image within a target area, performing image classification for the reference time phase and the monitoring time phase, performing pre-processing including introduction of the SAR image, polarization matrix transformation of the SAR image, Refined Lee filtering, and false-color synthesis on the classified full-polarization SAR image to obtain a false-color synthesized SAR image, inputting the false-color synthesized SAR image into an optimized surface change detection model to extract surface change patches, combining with a radar vegetation index RVI image to obtain initial forest disturbance patches, performing an overlay check on the initial forest disturbance patches to obtain forest disturbance patches within the target area, and generating a visualization result. It has efficient, accurate, and reliable detection capabilities, can observe the ground all day long, all-weather, and penetrate clouds and fog, can be widely applied in fields such as forest resource monitoring and environmental protection, and can better serve ecological protection restoration supervision and management.
Owner:MINISTRY OF ECOLOGY & ENVIRONMENT CENT FOR SATELLITE APPL ON ECOLOGY ENVIRONMENT

Carbon sink monitoring system based on current carbon sink monitoring methodology

The embodiment of the invention discloses a carbon sink monitoring system based on an existing carbon sink monitoring methodology, and the system comprises a data module which is used for obtaining the whole forest data in a to-be-monitored region; wherein the whole forest data is obtained based on remote sensing technology monitoring; the biomass calculation module is used for calculating by combining the whole forest data with the verified biomass remote sensing model to obtain biomass data; the data processing module is used for performing estimation processing on the biomass data in combination with a constructed regression model for carbon reserve estimation so as to obtain carbon reserves; subtracting the carbon reserves at the starting time and the ending time to obtain corresponding carbon sinks; the method has the advantages that multiple technologies based on satellite remote sensing are integrated, a calculation method is provided for key parameter variables in existing methodology, the data acquisition difficulty is reduced, and more complete and comprehensive monitoring is provided for forest land carbon sink monitoring.
Owner:BEIJING SHUJI INTELLIGENT TECH CO LTD

Forest land ecosystem carbon reserve accounting method and system

The invention discloses a forest land ecosystem carbon reserve accounting method and system, and the method comprises the steps: obtaining and screening feature variables, such as optical remote sensing data, vegetation indexes, texture factors, satellite-borne laser radar feature parameters, so as to determine features having the most influence on a target variable, and removing redundant and irrelevant variables; the method comprises the following steps of: screening characteristic variables, reserving variables which contribute to the model prediction effect, improving the precision and stability of the model, constructing a canopy height inversion model by adopting a random forest method based on the screened characteristic variables, realizing accurate estimation of the canopy height, and finally calculating the biomass of vegetation of the forest ecological system by using a different-speed growth equation. And finally, summarizing the biomass of the vegetation of the forest ecological system to obtain the total biomass of the vegetation, and multiplying the total biomass of the vegetation by the carbon-containing coefficient to obtain the vegetation carbon reserve of the forest ecological system, so that wide-area and efficient forest parameter monitoring is realized, the monitoring cost is reduced, the environmental adaptability is improved, and the problems of data continuity and standardization are solved.
Owner:湖南省第二测绘院

NDVI weighted attention-based sparse forest land individual tree segmentation method and system

The invention discloses a sparse forest land single tree segmentation method and system based on NDVI weighted attention, and the method comprises the steps: making a data set containing an image-label-NDVI image array of a sparse forest land single tree, and dividing the data set into a training set, a test set and a verification set; constructing a sparse forest land individual tree segmentation network model based on NDVI weighted attention; performing training, hyper-parameter adjustment and generalization ability evaluation on the constructed sparse forest land single tree segmentation network model by using the training set, the verification set and the test set; and performing individual tree segmentation by using the trained sparse forest land individual tree segmentation network model. According to the method, small target recognition, accurate edge and lightweight inference in the sparse forest land scene are realized, and a new technical path is provided for single-tree-level monitoring in a complex earth surface environment.
Owner:WUHAN UNIV

Tree species identification method, device and equipment based on dense time sequence images

The embodiment of the invention provides a tree species identification method, device and equipment based on a dense time sequence image, and the method comprises the steps: obtaining a dense long time sequence multispectral remote sensing image and topographic data of a research area; carrying out image wave band fusion according to the dense long-time-sequence multispectral remote sensing image to construct 12 vegetation spectral indexes; performing land utilization classification on ground features in the dense long-time-sequence multispectral remote sensing image of the research area by utilizing a linear spectrum hybrid model in combination with topographic data, dividing the ground features into buildings, water bodies, other ground features and a forest land data set, and performing pre-classification based on the extracted forest land data set; dividing the forest land data set into an evergreen forest and a deciduous forest by combining an RVI threshold method with a linear spectrum hybrid model; according to the forest land data set, Savitzaky-Golay filtering transformation and spectral differential transformation are carried out, and an NDVI transformation image set is obtained; and performing combination according to the vegetation spectral index NDVI transformation image set as classification features, and discussing the classification effect of the tree species in the research area through a random forest model.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Land utilization information extraction method and system based on historical soil survey text

The invention discloses a historical soil survey text-based land utilization information extraction method and system. The method comprises the following steps of: establishing a plant name dictionary of three land utilization types of paddy fields, dry lands and other forest lands in a research area; reading a vegetation description text Vi of a sampling point from a historical soil survey text of a research area, judging whether the Vi contains plants in a plant name dictionary or not, if so, assigning a land utilization type corresponding to the plant to a related variable of a species name, assigning a coverage value corresponding to full coverage to the coverage, storing the coverage in a species information list, and if not, assigning the coverage value corresponding to the full coverage to the species information list; otherwise, using a regular expression and an information extraction method to obtain names and coverage degrees of main species, and storing the names and the coverage degrees in a species information list; for each element in the species information list, extracting a corresponding life type from a preset plant website by using a web crawler technology; and inferring the land utilization type of the sampling point according to the life type and the corresponding coverage degree. The method is high in efficiency.
Owner:INST OF SOIL SCI CHINESE ACAD OF SCI +1

Method and system for identifying forest stand tree species based on multi-source remote sensing data fusion

The invention discloses a forest stand tree species identification method and system based on multi-source remote sensing data fusion, and the method comprises the following steps: obtaining data which comprises forest land remote sensing image data and ground data; carrying out preprocessing on the obtained data; a dual-path CBAM-UNet network model is constructed; inputting the preprocessed data into the double-path CBAM-UNet network model to carry out tree species classification prediction and obtain a tree species classification chart; performing image splicing on the tree species classification map to obtain a tree species classification grid map; the system comprises a data acquisition module, a data preprocessing module, a prediction module and an image processing module. According to the forest stand tree species identification method and system based on multi-source remote sensing data fusion provided by the invention, multi-scale feature capture and feature fusion of multi-source heterogeneous data can be realized through the constructed dual-path CBAM-UNet network model, high-precision identification can be performed on forest stand tree species under complex links, and high-quality data can be provided for forest management.
Owner:RES INST OF FOREST RESOURCE INFORMATION TECHN CHINESE ACADEMY OF FORESTRY

Forest fire danger grade forecasting method based on subcompartment scale

The invention discloses a forest fire danger grade forecasting method based on a subcompartment scale, and belongs to the technical field of forest fire prevention, the forest fire danger grade forecasting formula is P = (T + S) * M, P is a forest fire index; t is a combustible type index; s is a forest fire source index; m is the moisture content index of the fine dead combustible. The problems that existing forest fire risk prediction is low in fineness, low in precision and complex in prediction process are solved.
Owner:CHONGQING ACADEMY OF FORESTRY SCI

Forest precise fertilization decision-making method and system based on soil nutrient profit and loss

The invention relates to the technical field of forest fertilization, in particular to a forest precise fertilization decision-making method and system based on soil nutrient profit and loss, and the method comprises the steps: obtaining basic information of a target forest land, and dividing forest growth stages based on the basic information; the method comprises the following steps: collecting an undisturbed soil sample and a mixed soil sample of a 0-40cm soil layer of a target forest land by adopting an S-shaped point distribution method, separating the mixed soil sample, and respectively measuring the soil nutrient content, the bioavailability, the soil enzyme activity and the microbial functional gene. According to the method, by measuring the dimension indexes, constructing a five-dimensional profit and loss evaluation index system for determining the reference value and dynamically adjusting the weight according to the forest land data, calculating the comprehensive profit and loss index, judging the nutrient state and generating the personalized fertilization scheme, the defects that an existing fertilization scheme is single in basis index and lacks an effective dynamic adjustment link are effectively overcome; the requirements of multi-generation continuous planting forest land are met, and the environmental risks such as fertilizer waste, soil acidification and water eutrophication are effectively reduced.
Owner:GUANGXI FORESTRY RES INST

Dynamic index accounting system for displacement of cultivated land resources and forest land resources

The invention relates to the technical field of resource accounting, and discloses a dynamic index accounting system for displacement of cultivated land resources and forest land resources. The system comprises a resource data acquisition unit for acquiring spatial distribution data of cultivated land resources, types and coverage data of forest land resources and replacement constraint condition data and performing space-time alignment to generate a resource multi-dimensional data set; the replacement index accounting unit is used for executing resource adaptability reconstruction processing based on the resource multi-dimensional data set and separating target resource data from abnormal resource data; the replacement scheme generation unit is used for generating an accounting result containing a replacement area, a weight and a priority by combining a preset replacement rate and a development rate; and the dynamic correction unit is used for identifying an exception type based on the exception resource data and correcting an accounting result in real time. The system can comprehensively capture resource dynamics, improves the accuracy and timeliness of replacement accounting, and adapts to complex resource management requirements.
Owner:GUANGZHOU URBAN PLANNING & DESIGN SURVEY RES INST

Land data updating and analyzing method based on space-time dynamic change

The invention relates to the technical field of land data processing, in particular to a land data updating and analyzing method based on spatial-temporal dynamic change, which comprises the following steps: S1, data collection and arrangement; s2, space-time dynamic evolution analysis based on a GIS model; s3, performing data analysis based on a Python script tool; s4, land data updating; according to the method, the dynamic evolution of land utilization in the time sequence in 2009-2024 is accurately presented, meanwhile, the spatial distribution change is carefully presented, through the combination of the GIS model and a Python script tool, the spatial and temporal change rule of various land features such as cultivated land, garden land, forest land and construction land is accurately revealed, a reliable basis is provided for scientific planning, and the method is suitable for popularization and application. The invention provides an LSTM-CNN fusion model based on deep learning for solving the problem that the abandoned farmland monitoring precision is insufficient, and the abandoned farmland recognition accuracy reaches 94.7% through transfer learning optimization parameters.
Owner:邓彩

Pit digging device for forestry planting

The invention relates to the technical field of forestry planting, and discloses a forestry planting pit digging device which comprises a mounting plate and a soil drilling assembly connected to the mounting plate and further comprises a control rod for driving the soil drilling assembly to move up and down and a transmission assembly for driving the soil drilling assembly to rotate. The soil drilling assembly comprises a drill rod, a drill bit located at the bottom of the drill rod and a universal joint connected between the top of the drill rod and the control rod, and the two ends of the universal joint are rotationally connected with the drill rod and the control rod correspondingly. The drill bit penetrates through the mounting plate and is positioned below the mounting plate; the transmission assembly comprises a first bevel gear, a rotating sleeve, a second bevel gear, a first transmission gear, a second transmission gear and a mounting sleeve, the first bevel gear is fixedly arranged on the rotating sleeve in a sleeving mode, the rotating sleeve is rotationally mounted on the mounting plate, the drill rod is arranged in the rotating sleeve in a penetrating mode, and a connecting sleeve is arranged at the bottom end of the control rod; the connecting sleeve is fixedly connected to a rotating shaft of the first transmission gear; and rollers are arranged at the bottom of the mounting plate. The device can adapt to the terrain of the forest land and is convenient to move in the forest land.
Owner:JIANGXI ACAD OF WATER RESOURCES (JIANGXI PROVINCE DAM SAFETY MANAGEMENT CENT JIANGXI PROVINCE WATER RESOURCES MANAGEMENT CENT)

Vegetation recovery enclosure device

The utility model relates to the technical field of enclosures, in particular to a vegetation recovery enclosure device which comprises a vertical rod installation structure. A transverse rod mounting structure is mounted on the vertical rod mounting structure in an angle-adjustable mode, a plurality of angle adjusting butt joint structures are mounted on the vertical rod mounting structure and the transverse rod mounting structure, and an enclosure telescopic stop rod structure is mounted between the two angle adjusting butt joint structures. The vertical rod mounting structure ensures that the enclosure device can be stably mounted on a flat ground or an uneven soil slope under various topographic conditions, the enclosure device is not prone to displacement or toppling in the using process, the reliability of long-term use is ensured, and the angle adjusting butt joint structure and the enclosure telescopic stop lever structure are convenient to use. The device shows excellent flexibility and adaptability, the device can be flexibly installed and adjusted according to actual requirements no matter in soil slopes, mountainous regions or forest lands with different heights, the installation process can be simplified, and the working efficiency is further improved.
Owner:YUNNAN HUIQI CONSTRUCTION ENGINEERING CO LTD

Forest land ecological restoration device and use method thereof

The invention relates to the field of soil ecological restoration. The invention discloses a forest land ecological restoration device and a use method thereof, and aims to solve the problem that an existing device directly sprays restoration liquid on the surface of soil, and the restoration liquid absorption efficiency of the soil is affected. The device is composed of a soil crushing mechanism and a soil laying mechanism. According to the forest land ecological restoration device and the using method thereof, after broken soil blocks enter a flow guide pipe through sieve holes in an arc-shaped baffle, restoration liquid in a water storage tank is conveyed into a spray head through a conveying pump and sprayed to the broken soil, and after a material receiving groove in a material distributing cylinder rotates to the lower side of the flow guide pipe, the restoration liquid is conveyed into the spray head through a conveying pump; and after the soil is crushed and sprayed with the remediation liquid, the soil enters a material receiving groove, then along with rotation of a material distributing cylinder, a first transmission gear drives an L-shaped material stirring plate on a rotating rod to rotate anticlockwise, the soil in the material receiving groove is turned over and stirred, and the remediation liquid adsorption effect of the soil is further enhanced.
Owner:LISHUI VOCATIONAL & TECHNICAL COLLEGE

Tapered seed planting devices for enabling water and vegetation to penetrate a hydrophobic layer after a forest fire

A device and method for introducing new vegetation into a forest floor includes seeds, seedlings, and / or saplings carried within a plurality of tapered shells having polygonal cross sections, possibly mixed with soil, sand, gravel, fertilizer, SAP granules, and / or water. The tapered shells are inserted into the ground through the hydrophobic layer by dropping or propelling them from an aircraft, or manually pressing on them. One or more holes proximate the bottoms of the tapered shells enable rain water and germinating roots to penetrate into soil beneath the hydrophobic layer. A perforated lid can prevent the seeds or seedlings from being ejected upon impact with the forest floor. A weighted tip can improve penetration of the tapered shells into the forest floor. A plurality of tapered shells can extend downward from a tray or frame. The tapered shell and / or perforated lid can be made from biodegradable materials.
Owner:VIRIDIS ARBOR LLC

Forest land restoration and carbon sink management system and method based on three-dimensional cadastral model

The invention discloses a forest land restoration and carbon sink management system and method based on a three-dimensional cadastral model, and the method comprises the steps: integrating an earth surface forest right, an underground space right and a block chain information management right through the three-dimensional cadastral model, and collecting forest biomass and soil carbon library data in real time in combination with an Internet of Things sensor network; and data storage and carbon point transaction are realized based on a block chain multi-chain architecture. According to the scheme, the problems of unclear ownership and low data credibility in traditional forest land restoration are solved, the carbon sink value is converted into economic benefits, and the method is suitable for low-efficiency forest land ecological restoration and carbon asset management.
Owner:王政期

Method for automatically observing water-holding capacity of litter in forest land

The invention discloses a forest land litter water-holding capacity automatic observation method, which comprises the following steps: identifying topographic factor distribution of different slope gradients and altitudes, calculating vegetation structure parameters by combining vegetation indexes, dividing forest land environment heterogeneity regions according to the topographic factor distribution and the vegetation structure parameters, and generating a spatial distribution map layer, generating an observation point position layout scheme with regional representativeness, deploying a sensing device according to the observation point position layout scheme, and obtaining the dynamic change moment and the change amplitude of the litter water-holding capacity; and decomposing the dynamic change moment and the change amplitude of the litter water-holding capacity, generating continuous spatial distribution data of the forest land litter water-holding capacity, constructing a water-holding capacity prediction model, and calculating litter water-holding capacity observation values of different areas of the forest land in real time according to parameter coefficients of the prediction model. According to the invention, accurate observation of the water holding characteristic of the litter in the forest land is realized.
Owner:SHANXI ACAD OF FORESTRY & GRASSLAND SCI

Bidirectional driving control method and system for concentrated transportation machine

The invention discloses a bidirectional driving control method and system for a concentrated transportation machine, and belongs to the technical field of engineering machinery. The method aims at solving the safety problem of the two-way concentrated transportation vehicle during forest farm operation. The method comprises the steps that a starting signal is obtained after an engine is started; triggering detection of road condition information and seat direction based on the starting signal; if the direction of the seat is the forward direction, a control signal of the driving unit is generated to activate an operation handle and a front accelerator pedal of the vehicle; if the direction of the seat is reverse, a control signal of the driving unit is generated to activate a rear accelerator pedal of the vehicle; selecting a driving mode according to the road condition information; according to the driving mode and the direction of the seat, a control signal of a steering unit is generated so as to adjust vehicle steering. The driving mode, steering control and driving control related execution mechanisms can be automatically switched according to the seat direction and the road condition information, the manual operation complexity is reduced, various terrain requirements are met, and the safety of forest land driving is improved.
Owner:XCMG EXCAVATOR MACHINERY CO LTD

Efficient planting method for mushroom crops

The invention belongs to the technical field of crop planting, and provides a mushroom crop efficient planting method, which comprises the following steps: 1, land planning: selecting a soil position with sufficient shading and sufficient water supply, and preferably selecting a fruit forest land, a commodity forest land, a nut forest land and an arbor tea tree land; step 2, land preparation: selecting a target open space with the width of 0.8-1.2 m along the wind direction by utilizing the line spacing of fruit trees; carrying out soil preparation, chemical disinfection and physical disinfection on the soil; the problem that bacteria and microorganisms in soil affect the mushroom sticks is avoided, meanwhile, when the mushroom sticks are cultivated and planted, the soil at the planting position of the mushroom sticks is subjected to multiple times of sterilization treatment, the mushroom sticks are covered with protective films for protection, in addition, the soil outside the mushroom sticks is subjected to biological disinfection treatment, and therefore the mushroom sticks are protected. Therefore, the influence of other organisms in the soil on the cultivation and growth of the mushroom sticks is avoided, and the purpose of excellent cultivation and growth of the mushroom sticks is achieved.
Owner:YUNNAN NONGTONG DELI KAICHUANG AGRICULTURAL DEVELOPMENT CO LTD

Support for surveying and mapping of woodland surveying and mapping instrument

The utility model relates to the technical field of surveying instrument supports, and discloses a support for surveying of a woodland surveying instrument, which comprises a chassis and the surveying instrument, a fixed column is fixedly mounted at the top of the chassis, a universal ball is arranged in the fixed column, a pop-up mechanism is arranged at the top of the universal ball, a supporting mechanism is arranged outside the chassis, and the supporting mechanism is arranged on the chassis. According to the surveying instrument storage box, the surveying instrument is stored in the storage box through the arranged pop-up mechanism, the surveying instrument is protected and cannot be collided in the transportation process, when the surveying instrument needs to be used, the mounting plate drives the surveying instrument to pop up automatically through the pop-up assembly, and the problem that the surveying instrument needs to be mounted before being used every time and is tedious is solved; the extension rod can be stretched outwards according to different terrains to adjust the length of the extension rod, the spring B drives the insertion column to be inserted into the extension rod, adjustment of the extension rod is completed, and the surveying instrument can be conveniently placed for measurement when the surveying instrument is used and faces different terrains.
Owner:山东海纳地理信息有限公司

Ecological efficient cultivation method under abrus cantoniensis hance forest

The invention discloses an under-forest ecological efficient cultivation method for abrus cantoniensis hance, and belongs to the technical field of abrus cantoniensis hance planting. By interplanting the abrus cantoniensis hance under the arbor forest, the optimal interplanting mode of interplanting the abrus cantoniensis hance under the Chinese fir forest is found, and the mode can improve the utilization efficiency of the forest land, reduce the planting cost and increase the economic benefit; the harm of weeds and diseases and pests is reduced, the use of weeding labor and pesticides is reduced, water and soil loss is reduced, water and soil are kept, and good ecological benefits are achieved. According to the method, a scientific basis is provided for selection of a cultivation mode for interplanting the abrus cantoniensis hance under the forest. In ecological management, if the yield and the nutrient content of the abrus cantoniensis hance are improved as a target, a cedarwood forest stand is preferentially selected for interplanting.
Owner:GUANGXI UNIV +2

Under-forest cultivation method of clitocybe maxima Shenshi No.2 strain

The invention discloses an under-forest cultivation method of a clitocybe maxima Shenshi No.2 strain, and belongs to the technical field of edible mushroom cultivation. The method comprises the steps that a forest land with the canopy density of 60%-75% is selected, and when the air temperature is stabilized at 23 DEG C or above in summer, bag-removed Shenmushroom No.2 fungus bags are placed in a furrow bed at the interval of 8-15 cm and covered with soil; a simple arched shed covered with a plastic film and a sunshade net is built above the furrow bed, and ventilation and humidity are regulated and controlled by opening and closing the two ends of the simple arched shed. According to the method, through two core measures of interval placement and arched shed regulation and control, the problems that fungus bags are prone to fungus burning and rainstorm scouring in the high-temperature period under the forest in summer are systematically solved, efficient and stable production of the high-temperature-resistant variety Shenmushroom No.2 under the forest in summer is achieved, and the blank of under-forest cultivation in the high-temperature season is effectively filled up.
Owner:SHANGHAI ACAD OF AGRI SCI