637 results about "Forest resource" patented technology

The invention discloses a big data mining based integrated forest fire prevention informatization system. The big data mining based integrated forest fire prevention informatization system comprises a big data platform, and a multi-dimension perception subsystem, an early-warning prediction subsystem and a multi-hierarchy application subsystem, which are connected with the big data platform, respectively; the multi-dimension perception subsystem is used for acquiring various forest data, the big data platform is used for pre-processing and computing the data; the early-warning prediction subsystem can realize fire warning and prediction and forest fire spreading prediction; and the multi-hierarchy application subsystem is used for realizing forest resource planning, forest fire prevention management, and forest fire suppression dispatching and command. The big data mining based integrated forest fire prevention informatization system can realize multi-azimuth comprehensive monitoring on a forest, is used for mining and analyzing historical data and mass forestry data obtained by real-time monitoring to accurately predict forest fire and provide an early-warning function, can analyze the development tendency of the forest fire to provide aid in decision making, can put out the forest fire in an airland and multi-method manner, and can provide high-efficiency and accurate equipment and personnel assignment; and the system is integrated and has high informationization degree.

The invention discloses a wood-plastic composite material using sweet sorghum slag as an enhanced phase and a preparation method for the wood-plastic composite material. The wood-plastic composite material comprises 10 to 80 parts of sweet sorghum slag and 20 to 90 parts of recycled plastic, wherein the sweet sorghum slag and the recycled plastic serve as a matrix phase; and the sweet sorghum slag is subjected to combined pretreatment by an alkali-oxygen method and a steam explosion method. Sectional materials such as a sweet sorghum slag wood-plastic four-pore board, a sauna board, garden protective process, walls and the like are manufactured by extruding a fixed die and forming, or sweet sorghum slag wood-plastic products are manufactured by formation such as injection molding, pressing and the like. The sweet sorghum slag wood-plastic products can be suitable for large-scale continuous batch production and has the advantages of high performance, low cost, moth resistance, moisture resistance, no formaldehyde and the like. Compared with the conventional wood powder fillings, the wood-plastic composite material has the advantages of light weight, high performance, low cost, high extrusion speed, low processing temperature and the like, wherein the mechanical performance of the sweet sorghum slag subjected to treatment is superior to that of wood powder. The sweet sorghum slag wood-plastic composite material has good economic benefits, social benefits and ecological benefits of reducing environmental pollution, protecting forest resource and promoting economic development.

The invention discloses a forest classification method based on an object-oriented high-resolution remote sensing image. The method is based on the high-resolution remote sensing image, an object-oriented image classification method is used, an orienting remote sensing forest second-level classification system is established, a forest remote sensing classification auxiliary data set and an integrated image are created, key indexes which can distinguish forest types are selected, and a layered step-by-step classification extraction method is provided to be used for establishing information extraction knowledge rules of various forest types. The processes of the method are suitable for middle-small-scale forest resource remote sensing monitoring in a zone, good operability and repeatability are achieved, and efficiency and accuracy of forest remote sensing monitoring in the zone can be effectively improved.

The invention discloses a method for inverting remote sensing forest biomass. The method comprises the following steps: on the basis of remote sensing data pretreatment, extracting characteristic variables of a vegetation canopy from a LiDAR point cloud (comprising canopy three-dimensional space information) and multispectrum (comprising spectrum information on the upper surface of the canopy) data respectively; screening the characteristic variables of the LiDAR point cloud and the multispectrum through correlation analysis, and inverting overground and underground biomass by combining the ground actually measured biomass information through a stepwise regression model. Through the adoption of the optimized inverting model of northern subtropical forest biomass, constructed by method, the 'determination coefficient' R<2> of the model can be increase by 3-24%; the forest biomass can be estimated in high precision, and the 'relative root-mean-square error' (rRMSE) can be reduced by 2-10%. The method can be applied to the fields of forestry investigation, forest resource monitoring, forest carbon reserve evaluation, forest ecosystem research and the like, and provides quantitative data support for forest sustainable management and forest resource comprehensive utilization.

The invention provides an ecological environment monitoring and supervising system. The system comprises an ecological environment monitoring network, an ecological environment monitoring law-enforcement platform and an ecological environment monitoring and supervising command and dispatch center, wherein the ecological environment monitoring network comprises a mineral resource anti-illegal mining monitoring module, an illegal water-intake automatic monitoring module, a surface water environment monitoring module, a soil environment monitoring data collection module, a forest resource anti-illegal-tree-felling anti-flame monitoring module, a natural disaster automatic monitoring module, an ecological environment protection mass prevention data reporting module, an environment monitoring data collection module, a universal unmanned aerial vehicle monitoring module and an intelligent law-enforcement bayonet blocking module; the ecological environment monitoring law-enforcement platformcomprises an ecological environment supervising law-enforcement module, a monitoring data analysis and prewarning management module, a river chief comprehensive management module, an ecological environment dynamic supervising module and an intelligent law-enforcement linking module; and the ecological environment monitoring cloud operation center module, a command and dispatch center module and anemergency command and dispatch system platform module.

The invention discloses a method for cultivating lucid ganoderma by using mulberry branches. A formula for cultivating the lucid ganoderma by using the mulberry branches comprises the following raw materials in parts by weight: 70-80 parts of mulberry branches, 1-10 parts of bran, 1-5 parts of rice bran, 1-5 parts of corn meal, 1-5 parts of bean cake meal, 1-5 parts of gypsum powder, 1-5 parts of lime powder, 0.1-1 part of calcium carbonate, 1-5 parts of sugar, 0.1-1 part of magnesium sulfate and 5-10 parts of miscellaneous fine sawdust. The method for cultivating the lucid ganoderma by using the mulberry branches has the advantages of adequate source of raw materials, simple technology, low cost and quick response. In addition, according to the method for cultivating the lucid ganoderma by using the mulberry branches, the contradiction between fungus and forest can be solved, and the forest log is substituted by the mulberry branches for cultivating the lucid ganoderma, so that the waste is changed into things of value, the economic benefit for production of silkworm is improved, and the method has a great significance to protection of forest resources.

The invention discloses a method for cultivating agaric with mulberry branches. The formula for cultivating agaric with mulberry branches consists of the following raw materials by weight: 80-85 parts of mulberry branch, 1-5 parts of rice bran, 1-5 parts of bran, 1-5 parts of corn meal, 1-5 parts of silkworm excrement, 1-5 parts of gypsum powder, 0.1-1 parts of lime powder, 1-3 parts of sugar, 1-5 parts of cottonseed meal, 1-3 parts of soybean powder and 0.1-1 parts of calcium carbonate. To cultivate agaric with mulberry branches has ample raw material sources, simple technology, low cost and quick effectiveness. Moreover, to cultivate agaric with mulberry branches can solve the contradictions between fungus and forest. To cultivate agaric with mulberry branches instead of forest logs not only has the effect of turning waste into treasure and improving the economic benefit of sericulture production, but also has great significance in the protection of the forest resource.

The invention provides a bamboo original state multiparty recombination material, which is characterized in that the external surface of the position of bamboo segment with equivalent diameter are processed into regular polygonal bamboo units; bamboo recombination material is obtained by arranging the bamboo units in parallel by the edges of the cross sections, vertical finger joint and prolonged bonding. The basic manufacturing method comprises the sawing of segments, milling of regular polygons, milling of finger tenons, glue application and assembly, compression and heating, cold solidification and other working procedures. The edges of the regular polygonal bamboo units range from four to eight. The bamboo original state multiparty recombination material has the advantages that bamboo has the physical structural characteristics of hollowness, conicity and bamboo joint; by arranging the hollow bamboo units in parallel by the edges and extending vertically at will, the recombination material maintains the natural structure of bamboo, and structural material with high strength, long length and large span can be manufactured; the material can replace wood, improve the utilization ration of bamboo, save forest resources, and can replace concrete, steel and other structural materials in certain usages, and the natural-intimate ability of structural material is improved.

The invention discloses a high-performance wallpaper base paper pulp and a process which uses the pulp to produce wallpaper base paper, the base paper pulp is formed by sizing agent and accessory, the sizing agent is formed by the combination of coniferous bleaching chemical wood pulp, latifoliate bleaching chemical wood pulp and coniferous bleaching chemical thermomechanical pulp; and the accessory is formed by the combination of intra-pulp starch, filling, intra-pulp sizing agent, surface sizing agent, wet strength agent and retention aid. By adopting the invention, bubble points generated by the wallpaper base paper in the PVC scratching and painting process can be greatly reduced, and the bonding strength between a PVC coating and the paper surface and the stability of the paper in wet deformation are improved, thus overcoming the shortcoming of the prior art, simultaneously, reducing the production cost and industrial pollution of the wallpaper base paper. The wallpaper base paper produced by the process has high dry and wet strength, good dimension stability, good loose depth, high opacity, and difficult yellowing. The used sizing agent is mainly high-yield APMP, forest resources are saved, pollution load is low, and the invention has better generalization significant to the current situation that the cost of domestic current paper making industry remains high, forest resources are lacked, and the pollution of paper making industry is severe.

The invention discloses a forestry forest fire prevention safety intelligent monitoring and management system based on the Internet of Things. The system comprises a plant distribution area division module, a regional plant density statistics module, a regional monitoring point layout module, a regional environment parameter acquisition module, an environment parameter preprocessing module, a plant parameter database, a manual input module, a fire risk assessment coefficient statistics module, a management server, an early warning module and a remote monitoring platform. According to the invention, plant species identification and plant distribution region division are carried out on the whole forest region; meanwhile, a plurality of monitoring points are arranged in each sub-region; environmental parameter acquisition processing is carried out at each monitoring point; therefore, the fire risk assessment coefficient of each sub-region is counted, the possibility of a fire in each sub-region can be predicted in advance, the sub-regions of which the fire risk assessment coefficients are greater than the preset safety fire risk assessment coefficient are subjected to prevention processing, the occurrence of the fire is avoided to the maximum extent, and the damage to forest resources is reduced.

The invention discloses a crown information extraction method and system based on the high spatial resolution remote sense image. The method comprises the following steps: obtaining a forest land remote sense image; preprocessing the remote sense image, obtaining the preprocessed remote sense image; adding a forest form map on to the preprocessed remote sense image, using the subcompartment boundary of the forest form map as the clipping region to clip the image information corresponding to each subcompartment in the forest form map, extracting single forest stand image information; utilizing the maximally stable extremal region method to divide the crown and background areas of the single forest stand image information; and extracting the crown image of single tree in the multi-tree crown area, and calculating the number of trees and the crown factor of each tree in the crown distribution map. By using the method and system of the invention, the connected crowns are easy to separate under the condition that the crown image contains fewer pixels, the operation efficiency is high; and the efficiency and degree of automation of the forest resource investigation can be efficiently increased, the forest resource information can be accurately obtained, and manpower and material resources are saved.

The invention discloses a laser radar technology-based method for acquiring the forest growing stock in the high-canopy-density area. According to the technical scheme of the method in the invention, the ground information of an acquired high-canopy-density forest area is subjected to the detection of seed points firstly. Secondly, each single tree is extracted through the tree segmentation process. Finally, the forest growing stock in the high-canopy-density forest area is acquired by utilizing a DBH (diameter at breast height) - tree height - crown diameter model. The method flow, from the collection of data to the acquisition of the forest growing stock, is proposed based on the airborne laser radar technology. Therefore, the method provides a technical solution scheme for the forestry surveying applications of airborne laser radars in the high-canopy-density area. Meanwhile, the method provides a high-efficiency and low-cost technical support for the checking of forest resources.

The invention relates to a manufacturing method of small-diameter wood glulam slicing veneers and a leveling drying device. Small-diameter wood, tended wood, inferior wood or cordwood produced in the cutting and manufacturing process, and the like which are not easily efficiently used are softened by a composite agent by being infused with pressure, and then after flitches are integrated by finger joining and obliquely slotting the wood with a moisture-curable type adhesive, the flitches are sliced into wet veneers, and the wet veneers are then sent to a special continuous high-temperature ironing leveling dryer to be leveled and dried into sliced veneers in the clamping of upper and lower steel belts. The invention integrates a series of special technologies and transforms small-diameter wood which is not easily used into sliced veneers which meet requirements of various technical specifications with very wide application ranges. Low-grade wood is fully used, which improves the added value of products and comprehensive utilization efficiency of forest resources. The invention has the advantages of simple and reasonable technique method, low equipment cost, good product quality, broad development prospects and the like. Significant social and economic benefits can be produced after the implementation.

The invention relates to a method for producing high-density recombined wood, which is used for manufacturing plates and recombined module timber by the following steps of planning, processing by high-temperature steam, drying, dipping glue, draining glue, drying after draining glue, tidying or weaving, balancing for nourishing, pressing to shape, solidifying at a high temperature and the like. The density of the high-density recombined wood can reach 0.7-1.2kg / cm<3>; the high-density recombined wood has the characteristics of peculiar texture, fine grain, excellent performance, small possibility of cracking and deforming and the like, does not need to prevent insects, prevent mildew, prevent corrosion, prevent from cracking and the like, and can be directly used for the fields of floor, furniture, building and the like. The method disclosed by the invention has simple working procedures, and abandoned secondarily secondary small fuel wood and secondary small wood are utilized to produce plates and module wood, thereby changing waste materials into things of value, and greatly saving forest resource. The wood is an ideal log substitute.

The invention discloses a high spatial resolution remote sensing image crown outline delineation system and a method and aims at delineating the crown outline of a high spatial resolution remote sensing image simply and efficiently. The method includes the following steps: acquiring a high spatial resolution remote sensing image with forest stand being in growing season and extracting a single forest stand image; according to the single forest stand image, using gradient as division function and adopting Laplace-Gauss operator to conduct boundary detection on a grayscale image and obtain an intermediate result image; subsequently, adopting morphology technology to mark a foreground treetop object in a front intermediate result image to obtain a treetop tag; calculating a background tag inthe intermediate result image and generating a crown boundary line surrounding each treetop tag; and then conducting crown delineation on the crown boundary line under the guide of treetop to obtain acrown outline distribution chart. Compared with the prior art, the system and the method can be applied to the fields such as forestry investigation, forest resource monitoring, forestry remote sensing and the like.

Disclosed is a dendrobiumpaxt natural forest implantation high-yield culture technique. Seedlings cultured artificially are transplanted to main attachment trees in the natural forest, artificial protection and production are carried out, broad-leaved evergreen trees in the natural forest in the proper environment are selected as the main attachment trees to transplant artificially-cultured fine breed cutting seedlings, water and fertilizer application, pest control and artificial management are carried out to obtain the organic high-yield dendrobium, forest resources are protected, planting cost is lowered, and social benefits and economic benefits are good, and the technique is suitable for being popularized.

The invention relates to a method for manufacturing medium-density fiberboards, and belongs to the technical field of manufacture of fiberboards. The method includes proportionally cutting root-wood and brushwood to obtain 60X30X5mm wood chips; carrying out cleaning, cooking, hot-grinding and drying procedures for the wood chips to obtain fibers; proportionally and sufficiently mixing the fibers with sanding powder and sawdust-shaped edge strip and corner materials to obtain mixtures; and carrying out gluing, paving and hot-pressing procedures for the mixtures to manufacture finished medium-density fiberboard products. The method has the advantages that the manufacturing cost of the medium-density fiberboards is reduced to a certain extent; problems that sanding dust which is generated in existing fiberboard manufacturing procedures and edge strip and corner materials which are generated during blank plate cutting are discarded as rejected materials, environments are polluted, the manufacturing cost is increased and limited forest resources are wasted are solved; and the fiberboards manufactured by the method are stable in internal structure, low in deformation and good in physical and mechanical performance.

The invention provides a forest resource heterogeneous data distributed management system. The system comprises a data management module, a service management module, a data service release module, a metadata service module, a metadata registration module and a catalogue and index module, wherein the data management module maintains distributed data stored locally by a data provider and collected by a network; the service management module provides service data; the data service release module acquires and matches the distribution data and the service data so as to generate data service release information, and releases the dynamic deployment of the data service release information to a server; the metadata service module generates data service metadata according to the data service release information; the metadata registration module eliminates the isomerism of the data service metadata through the conversion of a private format, and generates standard metadata of the system; and the catalogue and index module provides catalogues and indexes for the standard metadata of the system. The forest resource heterogeneous data distributed management system realizes the distributed management of the forest resource heterogeneous data of a forestry center.

The invention discloses modified polyolefin paper without plant fiber. The modified polyolefin paper is formed by a matrix layer 1 without the plant fiber, a matrix layer 2 without the plant fiber and a matrix layer 3 without the plant fiber which are compounded into a whole, wherein the matrix layer 1 and the matrix layer 3 are prepared by 20 to 30 percent of ethylene-acrylic acid modified copolymer EAA, 45 to 60 percent of metallocene high-density polyethylene mHDPE, and 20 to 25 percent of activated ultrafine inorganic powder respectively, and the matrix layer 2 is prepared by 60 to 90 percent of activated ultrafine inorganic powder, 2 to 5 percent of maleic anhydride and 8 to 35 percent of high-density polyethylene. The modified polyolefin paper has the advantages of good ink receptivity and softness. Therefore, the modified polyolefin paper can be used as industrial paper, packing paper and household paper, can also be used as cultural paper, and enlarges the use range. The modified polyolefin paper has higher foldability and rigidity, has the longitudinal and transverse tearing strength which are superior to those of plant fiber paper, has good surface flattening, good handwriting, and clear printing performance, saves printing ink, has simple production technology, protects forest resources, saves energy sources and water, reduces the discharge of organic chlorides and harmful gas, has no waste, and protects the environment.

The invention provides a composite paper reel and a manufacturing method thereof. The composite paper reel consists of a molded fiber drum and a paper winding drum, wherein the molded fiber drum is arranged inside the paper winding drum; the paper winding drum is sleeved outside the molded fiber drum; the molded fiber drum is formed by composite resin fiber which is heated, pressurized and molded; and the composite resin fiber which is heated, pressurized and molded is formed by mixed resin fiber bagasse fiber, or the composite resin fiber which is heated, pressurized and molded is formed by mixed resin wood shavings. The manufacturing method comprises the following steps of using a mold and a press machine to produce the molded fiber drum and then using a paper winder to wind sized paper on the molded fiber drum. The composite paper reel is manufactured by use of reused waste bagasse, cornstalks and waste scrap, which reduces destruction to forest resources and is beneficial to environmental protection; meanwhile, as the cost of composite resin bamboo fiber is lower than that of high fiber paper, the cost can be saved.

The invention discloses a method for preparing a mushroom culture substrate by using compressed straws and provides a mushroom culture medium which utilizes crop compressed straws to replace parts of sawdust in the traditional mushroom culture medium. The method comprises the following steps of: crushing crop straws by sections into compressed straw grains and adding water to immerse the compressed straws; uniformly mixing raw materials of the culture medium of rough sawdust, fine sawdust, the compressed straw grains, wheat bran, gypsum and water according to a ratio; and packaging treated mixed culture materials into bags and sterilizing at high pressure or normal pressure, so as to obtain the mushroom culture medium. According to the method disclosed by the invention, the crop compressed straws are utilized to replace parts of the sawdust in the traditional mushroom culture medium to expand the source of the raw materials for mushroom culture and express characteristics of wide sources of the compressed straws, easiness for production, storage durability, convenience for transportation and the like; and a forest resource is protected, the environmental pollution is reduced and the stability of the nutrition of the mushroom culture substrate is guaranteed; the culture medium disclosed by the invention is suitable for culturing for various types of mushrooms and the period cost and the risk cost caused by domesticating mushroom strains are reduced.

The invention provides an under-forest wild-imitating planting method for polygonatumkingianum. The under-forest wild-imitating planting method includes the steps of seedling selection, pregermination in sand bed and under-forest planting, wherein the under-forest planting includes the steps of soil preparation, furrowing, field planting, fertilization, disease elimination and weeding. The method has the advantages that seedling emergence and growth situations during planting are good, growth time is shortened as compared with that of wild growth, less cultivated land is used as compared with that in field planting, pesticide and chemical fertilizer residues are reduced, product quality is improved, forest land output benefits are increased, and the method is suitable for not only production application of individual peasant households but also large-scale corporatized operation. The method has the specific advantages of less cultivated land use, benefit to grain safety, capability of widening forestry income range, benefit to forest resource protection, reduction of production cost of a genuine medicinal material, namely the polygonatumkingianum, and improvement on product quantity.

The invention discloses a forestry fire prevention intelligent inspection monitoring and early warning system based on big data. The system comprises an inspection area division module, an unmanned aerial vehicle, an unmanned aerial vehicle inspection route matching module, a database, a plant height acquisition module, an inspection height adjustment module, a fire hazard inspection parameter acquisition and analysis module, a GPS positioning module, a distance navigation module, a central monitoring platform and an early warning module.According to the invention, the forest area is divided;the unmanned aerial vehicle is used for replacing manual inspection, infrared thermal imaging shooting is carried out on the inspection subareas in the inspection process to count fire points with fire risks, meanwhile, flames and visible smoke phenomena of all the inspection subareas are monitored, intelligent inspection monitoring can be carried out on forest fires, the inspection efficiency ishigh, The forestry fire prevention intelligent inspection monitoring and early warning system has the advantages of being high in monitoring speed, high in timeliness and high in accuracy, meanwhile,the fire point position is positioned, the positioned geographical position is sent to forest protection personnel, the forest protection personnel go to extinguish a fire, and therefore damage to forest resources is reduced.

The invention discloses a method for detecting whether a sub-compartment forest resource changes or not by a remote sensing and geographical information system technology. The method comprises the following steps that a remote sensing image of the forest resource is obtained and preprocessed, the remote sensing image obtained after preprocessing is overlapped with position vector data, stored in advance, of sub compartments, and a remote sensing image forest map is generated; characteristic data of each sub compartment in the remote sensing image forest map is compared with attribute data of the corresponding sub component in a forest resource database, and whether the attribute data of each sub compartment are changed or not is judged, wherein the attribute data comprise land types, dominant tree species, canopy density, the age of forest, the amount of growing stock and the number of trees; if the attribute data of a certain sub compartment is changed, the serial number of the sub compartment with the attribute data changed and the changed attribute data are obtained. Forest resource change is recorded according to the sub compartments, so that operating activities of the sub compartments reported by a township forest operating station are effectively verified, false reporting and failure reporting are avoided, and the purpose of enhancing forest resource management is achieved.

The invention discloses a method for automatically extracting the tree height of a standing forest having high canopy density based on TLS and UAV. By utilization of UAV photographic measurement pointcloud data and ground precise point cloud data, the highest point and the lowest point of an individual tree are extracted; according to an individual tree positioning coordinate and automatic identification highest point information, the judged highest point and a positioning point are projected in a xoy plane; the identification accuracy is judged; and thus, a tree height value is rapidly extracted. The cost is reduced; the efficiency is increased; furthermore, on the premise that the tree height extraction precision is increased, partial manual survey is replaced; a lot of manpower and material resource consumption can be reduced; a test result shows that: the tree height extraction method provided by the invention has relatively high precision for tree height estimation of an artificial metasequoia forest; the tree height extraction value whole is closer to the actual measured value; and furthermore, the method in the invention also makes effective recommendations for forest resource assessment and business planning of small and medium-sized farms.

The invention discloses a phyllostachys pubescens guide groove supergene cultivation method for purple yam. The method includes the steps that soil is selected before sowing, phyllostachys pubescens guide grooves are manufactured, and land preparation and groove burying are carried out; non-rotten tubers without scabs are selected before sowing to serve as yam seeds; purple yam seeds are sowed; covering for soil moisture preservation, frame erection for vine guide, thinning, lateral branch pruning and topdressing are carried out, and field management is carried out; pest control is carried out; harvesting and storing are carried out. According to the method, downward growth of purple yam in a conventional ridging cultivation method for purple yam is changed to lateral growth, and deep cultivation is changed into supergene cultivation, so that labor cost is reduced, and tuber expansion is promoted; wide-ridge and two-row cultivation in a conventional guide groove cultivation technology is changed, so that soil moisture preservation is ensured, sunlight is fully utilized, and the effect of ventilation between rows is good; plastic guide grooves in the conventional guide groove cultivation technology are changed into the phyllostachys pubescens guide grooves, so that recycling is achieved, groove burying is easier, harvesting and digging are easier, the production process is ecological and environmentally friendly, and local forest resources are fully utilized.

The invention discloses a method for extracting tree heights by the aid of unmanned aerial vehicles and ground-based laser radar combined with the same, and belongs to the technical field of forest resource dynamic monitoring. The method includes acquiring point cloud data of forest surface layers from two-dimensional images of the unmanned aerial vehicles; acquiring point cloud data of crown canopy lower layers by the aid of ground-base laser scanners; introducing real-time kinematic (RTK) data; registering the point cloud data of the forest surface layers and the point cloud data of the crown canopy lower layers to obtain metasequoia glyptostroboides tree height information in the same coordinate reference system. The method has the advantages that respective merits of the data from twodifferent sources can be complemented by one another, and accordingly the tree height acquisition precision can be improved under the condition of high crown density of tall arbors; manual ground survey can be replaced with the method to a certain extent, accordingly, the cost can be saved, and the efficiency can be improved.

The invention relates to a method for processing the faceplates of fiddle musical instruments, and is characterized by the following steps: (1) the faceplate material of coniferous wood for making the faceplates of the fiddle musical instruments is put into water at a temperature of 15DEG C-25DEG C for soaking for 1-24 hours, so that the percentage of moisture of the wood reaches saturation; (2) the faceplate material with the percentage of moisture in saturation is put into a freezing chamber at 0DEG C-40DEG C for freezing for 10-60 minutes; (3) the frozen faceplate material is thawed at a temperature of 5DEG C-40DEG C; and (4) the thawed faceplate material is aired for 7-10 days and then is used for making musical instruments. The invention solves the problems as follows: the prior common faceplate material of coniferous wood for making the faceplates of the fiddle musical instruments is not aired enough after being cut down, so that the timbre is poor; although the price is low and the international low-class fiddle market is occupied, the economic benefit is poor; and the precious forest resource of the country is wasted.

The invention relates to the field of papermaking, and in particular to a production process of environmental-friendly healthful household paper. The production process is as below: 1, preparing materials; 2, steaming; 3, screening; 4, washing; 5, purifying; 6, removing oxygen; 7, conducting papermaking; and 8, processing. Because of no bleaching process, the above production process protects the sterilization, permeability, strength and other properties of bamboo fiber to the greatest degree, and the produced paper has better quality; because of no bleaching process, the paper not only has no residual bleaching reagent but also reduces the pollution of bleaching effluent to the environment, and is beneficial to dual protection of human body and residential environment; the paper with low whiteness shows the original color of the bamboo fiber, reduces the stimulation to eyes and is conducive to the protection of people's visual health; the process employs bamboo as raw material for production, so as to effectively reduce consumption of forest resources, protect the nature environment; besides, the method combines local characteristics for effective cooperation with local rural areas, so as to beautify the living environment, as well as increase the income of local farmers.

The invention provides a composition of a novel synthetic paper material and a preparation method. The invention comprises the following components in weight percent: 50-85% of polyolefin blend, 10% of inorganic mineral powder and 5-12% of auxiliary agent; then 0.1-1% of antioxidant calculated according to the total weight the above materials is added for pre-mixing; then a double-screw extruder is utilized for extrusion and pelletizing to manufacture into base resin with high steel and high toughness; and the comprehensive performances are all better than ordinary PP synthetic paper material,thus expanding the application range, and simultaneously by adding auxiliary agent (anti-static agent, antibacterial agent, aromatizing agent and the like), and by the processes of fusion, blending and even dispersion in the resin base body, different functional requirements can be satisfied. The paper manufactured from the high-performance PS and PP alloy novel synthetic paper material can be widely used in packaging, high-quality printed matters, tags, paper money, developing paper, tracing paper, express envelopes, paper fans, umbrellas and the like, can save a large amount of forest resource and water resource, and reduces sewage treatment pressure and energy consumption.