1596 results about "Tree species" patented technology

The invention relates to a method for cultivating tea, particularly the method for organically cultivating tea, which comprises the following processes: (I) establishing an artificial complex ecological organic tea garden; (II) selecting tea seeds of the organic tea garden; (III) planting tea; (IV) seedling stage management; (V) soil management of the organic tea garden; (VI) nutrient management and utilization of the organic tea garden; (VII) pest control of the organic tea garden; (VIII) tea pruning of organic tea. The method for cultivating tea has the following positive effects that: as the organic tea is the inevitable trend of future tea production, the invention regulates organic planting of tea in China and promotes the large-scale development of tea producing areas toward harmlessness and organification; the method for cultivating tea does not rely on advantage factors of microecological nature of producing areas, makes full use of modern technical achievements and has strong technical operability, thereby ensuring the quality of the organic tea.

A botanical environment-friendly pesticide preparation belongs to the technical field of botanical compound pesticides. It is characterized in that the extract of coniferous species is used as the main insecticidal active ingredient, and it is prepared by adding pesticide adjuvants. The raw material composition and weight percentage are: : 50-90% of essential oil extracted from coniferous species; 10-50% of additives; the extract of coniferous species is the essential oil of coniferous conifer and its fractionation products. The present invention uses the essential oil of coniferous species as the main active ingredient, which can be made into concentrated emulsion, powder, wettable powder, water-based spray and aerosol, etc., which can be used to drive away and kill household and agricultural pests and diseases, and can also be used to sterilize crops. It is safe for the environment, has a wide range of sources of raw materials, and is low in cost and easy to popularize and apply.

The invention discloses a tree species identification method based on transfer learning, comprising the following steps: S1, collecting tree images and making tree species image data sets; S2, data enhancement is performed on the original data set image to expand the number of pictures; S3, acquiring more than one pre-training model based on convolution neural network trained on large image dataset, S4, training the pre-training model with tree species image dataset, optimizing one or several full connection layers of the pre-training model in the training process, thereby training a pluralityof classifiers based on convolution neural network; Test the accuracy of each classifier and select the classifier with the highest accuracy. S5 performs tree species identification using the classifier selected in step S4, thereby obtaining an identification result. The invention recognizes tree species based on the transfer learning mode, so that a model with good generalization ability can betrained under the condition of limited sample size of tree species, and the tree species recognition rate under the complex background is greatly improved.

The invention discloses a tree tissue culture method of dendrobium candidum, which belongs to the agriculture technical field, and aims at solving the technical problem that a tree tissue culture method of the dendrobium candidum is provided, and belongs to the bionics wild cultivation. In order to solve the problems, the tissue culture method of the dendrobium candidum comprises the following steps that: 1) a tree with surface of a tree bark having grains is selected as an epiphytic tree, a dendrobium candidum seedling after being domesticated is selected as an epiphytic seedling, and a hay band is selected as a binding rope; 2) the epiphytic seedling is arranged on the surface of a trunk of the epiphytic tree, and root of the epiphytic seedling is wound by the binding rope to be fixed; and 3) the tree tissue culture humidity is controlled at 70 percent to 85 percent. Due to the adoption of the method, the dendrobium candidum can be planted on the tree with the surface having the grains.

The invention provides a tie-to-tree dendrobium officinale cultivation method, comprising the steps of seedling tissue-culture breeding, tissue-culture seedling acclimatization and tie-to-tree cultivation of acclimatized seedlings. The step of tissue-culture seedling acclimatization comprises selection of bottled tissue-culture seedlings, selection and arrangement of a seedling acclimatization medium, selection of seedling acclimatization fertilizer, planting and after-planting management and is characterized in that the seedling acclimatization medium consists of hardwood sawdust and broken stone mixed in a mass ratio of 6.5-7.5:2.5-3.5, and the seedling acclimatization fertilizer is organic fertilizer prepared by fermenting herbivorous animal waste. The step of tie-to-tree cultivation of acclimatized seedlings comprises selection of acclimatized seedlings, selection of cultivation forest land, selection of variety of trees to be tied, seedling tying up and planting management. The tie-to-tree dendrobium officinale cultivation method provided by the invention has the advantages of low planting cost, easiness in management, high survival rate and long harvesting period; moreover, the harvest products have high quality.

The invention discloses a compression-type forest tree seed cultivating substrate which is made into a compression block through blending the following raw materials in percentage by weight: 10-20% of sandy soil, 75-85% of decomposed forestry and agricultural residues and 0.1-5% of peach gum. The compression-type forest tree seed cultivating substrate is low in cost and capable of achieving the effects of sufficiently utilizing a great number of cheap forestry and agricultural residues, creating economic benefits and bringing environment benefits. A product produced by using the compression-type forest tree seed cultivating substrate can be supplied to nursery stock enterprises and forestation enterprises in batch for large-scale forest tree propagation, can also be sold on the market and cultivated in a household by an individual person to enjoy the pleasure; and meanwhile, the cultivated nursery stock can also be transplanted outdoors, so that the environment is indirectly protected. The compression-type forest tree seed cultivating substrate can be used for increasing the germination rate of tree seeds and plays a role in strengthening seedlings.

A method for improving an afforestation survival rate by water collecting, water retention and water replenishing comprises the steps of water collecting, soil preparation, water retention and water replenishing. The water collecting method comprises the steps that a soil preparation engineering mode is used for collecting natural rainfall water into forest land and plant pits; the measure of building a flow collecting face, a flow collecting pool, a water cellar and the like is used, in the adequate rainfall reason, the natural rainfall water is collected and reserved, and the natural rainfall water is used for supplemental irrigation when trees are in short of water. The water retention method comprises the step of using mulching films, wheat straw, dinas and the like for covering the plant pits. The water replenishing method comprises the steps that when it is arid and does not rain and when nursery stock is in water shortage, the methods of micro-irrigation, trickle irrigation, infiltrating irrigation under films, root-irrigation through tube inserting, water injection irrigation and the like are used for water replenishing; soil preparation is conducted, fertilizer is applied to the plant pits, plastic films are mulched for catchment and soil conservation, seeding and planting are conducted, a water collecting face and a water reserving cellar are built to collect rainfall water, and water replenishing and irrigation are conducted in the drought period in spring. The final purpose is to improve the afforestation survival rate and the preserving rate, and to improve the volume of forest tree growth. In addition, the important links further comprise suitable tree species choosing, application of the new technology, new method and new materials of afforestation, cultivation management, disease and pest control and the like.

The invention discloses a method for promoting the culture of cyclobalanopsis glauca (Thunb.) Oerst. seedlings. Mixed medium of long lasting controlled release fertilizer is adopted, main roots and lateral root systems do not adopt air root cutting, the main roots and longer lateral root systems can pass through the bottom parts of a container and a seedling nursery plate to penetrate through the nursery ground for growth, well developed fibrous root systems are formed by manual cutting for many times, few lateral root systems can make series flow growth between containers, and the seedling success of the cyclobalanopsis glauca (Thunb.) Oerst. is greatly improved by the technical measures of seed wet sand stratification, disinfection, reasonable fertilizer, water, light irradiation, seedbed management and the like. The invention has the technical advantages of developed seedling fibrous root systems, prosperous growth vigor and convenient management, and has obvious difference from the conventional outdoor seedling culture and the like. The seedlings cultured by adopting the technology has high afforestation survival rate and transplanting survival rate and short transplant recovering period; and the invention effectively improves the quality of seedling afforestation and transplanting, has obvious benefits, and can be widely popularized and applied in production; and meanwhile the method also can be applied to the forcing culture of seedling of other tree species of fagaceae.

The invention provides a method for mining a data flow weighted frequent mode based on a sliding window. The method comprises the following steps: the weighted frequent mode stored in a data flow sliding window is compressed by an SWFP (Sliding Window Frequent Parting) unit; when a data flow passes, the method is only used for scanning data for one time; mode information and weight information incremental amount included in the data are updated in an SWFP-Tree mode tree in the SWFP unit; along with new data continuously flowing to the sliding window, expired data is deleted; and mode tree species non-frequency modes are deleted in a timed manner by using two pruning strategies so that the storage space of the SWFP-Tree mode tree is compressed. The method for mining the data flow weighted frequent mode provided by the invention has the characteristics of rapid speed, effectiveness and high time and space requirement stability and is applied to mining the weighted frequency mode in a data flow environment.

The invention provides a method of para position allocation and ,mixing cultivation of planting grass for afforestation on purple hills, which comprises the steps of: (1) division of land types: purple hilly lands are divided according to the acidity, basicity and lithology of the lands, soil erosion, soil thickness and terrain features; (2) selection of species of trees and grasses: species of trees and grasses which are applicable to grow in varied purple lands are selected according to the selection experiments of the different types of species of trees and grasses used for afforesting of purple hilly lands, and fitting degrees of the species of trees and grasses to each kind of land are specified; (3) para position allocation of the species of trees and grasses with the kinds of the lands: corresponding species of trees and grasses are allocated on the most suitable or relatively suitable lands; (4) mixed disposition of trees: different optimized disposition modes for purple hilly mixed forests are selected according to the mixed experiments of the trees for different kinds of lands of hills and hilly areas with purple soil, and trees and bushes, legumes and non-legumes, species of trees of deep root system and shallow root system, horizontally growing type and vertically growing type, soil fixing type and soil improved type are mixed. The method of the invention adopts trees, brushes and grasses to be planted on the most suitable and relatively suitable hills with purple soil, thus realizing precise para position allocation, high survival rate being up to over 90 percent and greatly accelerating the growing speed and forest establishment speed.

The invention discloses a coastal kaline soil forestation method, comprising the following steps: A. trenching and building ridges, and building rain collection beds; B. setting rain collection surfaces; C. digging plant pits, and setting salt isolation layers; D. collecting tree species and planting; E. setting surface cover layers of plant pits; F. tending, and weeding at proper time; wherein, the step of trenching and building ridges, and building rain collection beds is based on the design of forestation spacing, and flow collection trenches are dug at interval of a row spacing along the direction of rows; the depth of the trench bottom is 20cm to 25cm; the ground surface between the ridge and the trench bottom is trimmed to form a shallow v-shaped groove; the sloping surfaces are leveled and compacted to form the rain collection beds. The coastal moderate kaline soil forestation technology of the invention greatly increases the water content of soil, and the salt is efficiently leached and reduced, thereby efficiently improving the survival rate, save rate and growing speed of forests; the survival rate of forests reaches greater than 85%.

The invention discloses a method for automatically identifying conifer seeds based on wood micrographs, belonging to the computer identification technology of micrographs. The method is divided into as a training part and an identifying part, wherein the training part comprises the following specific steps of preparing basic sample materials, preprocessing, extracting PCA characteristics and extracting ICA characteristics; and the identifying part comprises the following specific steps of preparing materials to be identified, preprocessing, projecting and re-constructing images to be identified, and determining tree seed. By adopting the method, the data in the stored conifer cross section micrographic database can be trained, and the tree seeds are identified for the conifer to be identified by a computer similarity matching method. The method has the advantages of no influence from the subjection of an authenticator, high comprehensive capability, high operation efficiency, high speed and higher accuracy rate.

The invention relates to a flow or semi-flow sand dune recover method, which comprises that: 1, based on condition and soil parameter, selecting working area; 2, via the grass mode, selecting plant kind; 3, planting seeds into working area, the first year grass and arbuscle are mixed sprayed into face of sand dune, arbor is sprayed at the bottom; 4, spraying lignin water solution at the face of working area, said lignin is crosslinker of lignin, urea-aldehyde and lignin, with solidifier. The lignin is modified into hydroxymethyl / hydroxyethylation lignin. The invention has low cost and better effect.

This invention relates to lucid ganoderma spore powder culturing and collecting technology. It includes the tree seed choosing, loping, cutting, packaging sterilization, inoculation, hyphae culturing, burying, ganoderma management and spore powder culturing and collecting, and the powder culturing and collecting includes the following procedures: material preparation, film laying, packaging and sleeving, culturing management, powder collecting, drying, sieving and storing. The spore powder of this invention is pure, the turnout is high, the economic effect is evident, and the unit output increases the selling income by more than 32% with low cost. And meanwhile, the heavy metal contents of the lucid ganoderma spore powder of this invention I controlled in the national standard.

The invention belongs to the technical field of economic forest planting, and particularly relates to a high-yield and high-quality planting technology for oil-tea forest. The high-yield and high-quality planting technology comprises the steps of land selection, land preparation, tree species selection, forestation, young growth management and protection and intensified nourishment. The forestation time and density are strictly controlled, and nursery stock is planted after being lifted; mixture forestation is carried out, planting flowering phases are matched, and the fertilization and fruit bearing rate is increased; forest land intervals are utilized for planting dwarf crops, interval interplanting is carried out, ploughing is used for replacing fostering, and fertilization is carried out in time. In the base fertilizer application process, organic fertilizer containing Chinese herbal medicine residues is adopted, the organic matter content is high, meanwhile, the effects of sterilization, insect killing and nursery stock plant disease and insect pest prevention can be effectively achieved through the remaining components of the Chinese herbal medicine, the pesticide and chemical fertilizer application amount is greatly decreased, the oil-tea quality is improved, and the high yield and the high quality are ensured.

The present invention discloses a tree species classification method based on multi-source simultaneous high-resolution remote sensing data. High-resolution and hyperspectral data simultaneously acquired by an integrated sensor is utilized; firstly, coronal breadth identification is carried out based on the high-resolution data and an object-oriented method, then tree species classification is carried out based on spatial details and spectral features, which are extracted by the hyperspectral data, by combining a BP neural network classifier, and finally, the accuracy is verified by a confusion matrix. According to the tree species classification method disclosed by the invention, based on an edge detection multi-scale segmentation method, segmentation grades with different scales are established from multiple levels and multiple patterns and segmentation and information extraction are carried out layer by layer, so that the classification accuracy of tree species and forest types of subtropical natural secondary forests are promoted.

The invention provides forest complex terrain correction and forest height inversion methods and systems with backscattering optimization. The terrain correction comprises: constructing a two-layer-structure coherent model aiming to polarized interference SAR images of a forest scene and according to the characteristics of two-layer scattering of the forest scene, and correcting parameter changes caused by the terrain; establishing a quantitative description relation between vegetation and the terrain with the combination of terrain simulation and vegetation simulation; and finally performing correction with the combination of the range-Doppler geometric correction mode and normalized radiation correction mode. The forest height inversion comprises bringing forward tree species diversity factors aiming to structures of different tree species and distribution difference, the vegetation heights of different tree species are respectively estimated, and the forest height inversion result of the whole forest scene is obtained. By adopting the methods and the systems, terrain effect analysis and compensation of forest complex scenes can be effectively realized; besides, the inversion precision of vegetation height is improved with the combination of the tree species diversity factors.

A method for increasing greening survival rate of seashore solonchak belongs to the technical field of seashore solonchak greening and is characterized by including steps of firstly, selecting tree seeds; secondly, planting trees; thirdly, improving soil; fourthly, reinforcing plants; fifthly, interplanting with manure; and sixthly, maintaining virescence. The method for increasing greening survival rate of seashore solonchak has the advantages that covering soil balls with rice chaff is low in cost, seedling roots are promoted to grow early, stress resistance is improved, and soil ventilation is enhanced; survival rate of seedlings is high and can reach more than 90%; both trees and shrubs can grow normally for a long period of time and never die of intolerance to salt and alkali two to three years after survival; and improvement is effective and salt content is lowered greatly.

The invention discloses a tree climbing and pruning robot based on flexible tools. The robot comprises a left rack, a right rack, a tree climbing mechanism, an embracing and clamping mechanism and a pruning mechanism, wherein the embracing and clamping mechanism comprises a left fixing and clamping arm plate, a right fixing and clamping arm plate, a left clamping arm, a right clamping arm, a leftclamping electric drive pusher, a right clamping electric drive pusher, a left tire and a right tire; the tree climbing mechanism comprises a crawler, a crawler frame, a climbing motor, a driving wheel, a tensioning spring and a tensioning wheel; the pruning mechanism comprises a left pruning electric drive pusher, a right pruning electric drive pusher, a left tube tool rest, a right tube tool rest, a left flexible tool, a right flexible tool, a left pruning arm, a right pruning arm, a left pruning motor and a right pruning motor. The robot is used for solving the problem about rapid pruning of branches of tall tree species such as fast-growing trees and the like, not only can climb trees automatically, but also can prune branches during tree climbing, the pruning efficiency can be greatlyimproved, and labor cost is reduced.

The present invention discloses a method to plant Moringa oleifera used to dry-land fruit trees at the dry and hot valley of Jinsha River, pertaining to the field of forestry planting technologies. The method includes five steps, i.e. nutrition-bag seedling raising, selection of planting land, planting, caring and protection, and seed collection. A 60cm wide streaky level-ground is prepared 1-2 months prior to planting, the row spacing is 250cm, the plant spacing is 250-300cm, 60 multiply 60 multiply 70cm pits for Moringa oleifera planting are dug, 3-5kg farmyard manure or 1kg fertilizer mixture containing 16 percent of calcium superphosphate is filled in each pit as basal fertilizer; the seedlings are raised from April to May, and planted during the rainy season from June to July; the Moringa oleifera is trimmed and sheared carefully; irrigation is conducted 2-3 times during dry seasons, and fertilized once during the irrigation in January. The method is comprehensive, simple and easy to promote, and is capable to achieve 40-57kg Moringa oleifera seeds per mu 3-4 years after planting, the yield is increased by 24-78 percent and 27-81 percent compared with 1 and 2 respectively; thereby, the yield per unit area and the income are increased.

The invention relates to a method for batch preparing golden leaf elm Caoshu dish garden, comprising the following steps: sowing with annual white elm, shaping with iron wire un-intertwining method, producing mass Caoshu shape tree trunk, cultivating in the soil for more than one year, intercepting the white elm trunk in position 5-10 cm from the Caoshu character in June to August of the second year, grafting the golden leaf elm onto the new growing branch of the white elm with bud grafting method after new branch growing out, making the survival golden leaf elm form into golden leaf elm new tree crown, making the tree crown of the golden leaf elm become cloud slice shape with 1-5 layers through brown method or intertwining with metal wire, then cultivating it in basin for shaping. The invention is characterized in that: the tree species for dish garden is colorful golden leaf elm, which shortens the producing cycle and is good for mass production.

The invention discloses a method for removing the seed dormancy of tapiscia sinensis oliv and improving the seedling survival rate. The method is mainly realized by the following steps: selection of seeds, disinfection of seeds, ultrasonication, hormone and heterotherm stratification, seed seedling and the like. By means of technology of growth regulator control, heterotherm treatment and the like for breaking the seed dormancy, with the adoption of the growth regulator with appropriate concentration and an appropriate heterotherm treatment medium, the seed germination time of tapiscia sinensis oliv is greatly shortened. Furthermore, with the adoption of appropriate temperature and light treatment as well as an appropriate seedling medium, the survival rate of a nursery-grown plant is further high.

Disclosed is a walnut which is an important dry fruit tree in China and has rather high economical and nutritive value and broad medical and health functions. The walnuts are widely distributed in China, however, the process of variety improvement is rather slow, the invention provides a walnut scion disinfection and mulching film moisture retention shading grafting method with simple operation and high survival rate for overcoming defects and shortages of the prior art. The invention has the technical proposals of walnut scion disinfection-cutting back and engraftment-rootstock treatment-cuttage tongue grafting-mulching film moisture retention-shading treatment-automatic scion bud bursting from the membrane. The invention has advantages of simple operation, short inoculation time, high seedling rate, high survival rate of over 90 percent, simple method, stable effects, more mature fine variety breeding technique of walnut and wide promotion and application areas compared with a plurality of current grafting methods.

The invention discloses a method for planting a mixed mangrove forest in groups. According to the method, local mangrove species are planted with row as unit; the direction of the row is parallel to the coastline; one local mangrove species is planted in each row; kandelia candel hypocotyls are inserted between the rows; the local mangrove species comprise Bruguiera gymnorrhiza, kandelia candel, Rhizophora stylosa, avicennia marina and Tung blossoms; and the mangrove species are 2-3 years old and the mangrove species in one row closest to the seat are 3 years old. The method is beneficial for bringing colony heterosis and boundary advantages of each mangrove species into full play, and has the advantages that topographies and spaces are sufficiently utilized and forest tree growth is promoted. The method has the advantages as follows: as more mature mangroves are planted in near-sea sections, the method is beneficial for protecting the kandelia candel hypocotyls and plants in the back rows and reducing impacts of tides on the mixed forest, the surrival rate of afforestation can be increased, the use of building materials is reduced, the secondary pollution is avoided and the cost is reduced.

The invention discloses a tree species classification method based on a LiDAR (Light Detection and Ranging) false-vertical waveform model. The method comprises a step 1 of collecting data using an airborne small-light spot full-waveform LiDAR sensor, in order to obtain complete waveform information, wherein the sampling interval is 1ns; a step 2 of preprocessing LiDAR waveform data; a step 3 of establishing a false vertical wave through waveform structural decomposition and comprehensive waveform recombination; a step 4 of carrying out single tree segmentation and information integration; a step 5 of gathering point cloud attributes within in a single tree range and calculating a comprehensive waveform characteristic parameter; and a step 6 of carrying tree species classification with a support vector machine classifier. With the tree species classification method, acquired LiDAR energy signals can be enhanced; on the basis of single tree segmentation, comprehensive waveform characteristic variables are extracted from multiple dimensions, and thus classification accuracy of tree species in the subtropical forest is obtained and improved by a single data source; spatial and temporal variation of main tree species of a forest type can be well embodied; through experimental verification results, the method provided by the invention is improved by 10% in terms of overall precision compared with other LiDAR-employing tree species classification methods; and the Kappa coefficient is improved by 0.1.

The invention discloses pollen suspension suitable for the liquid pollination of fruit trees and a preparation method thereof, belonging to the technical field of pomiculture. The required pollen suspension is obtained by two steps, namely sieving pollen suspended components and sieving components keeping the viability of pollen in liquid. The invention can well suspend and evenly distribute the pollen to be well suspended, and the pollen can keep higher viability in a liquid solution; the invention can be widely applied to the liquid pollination of fruit trees and can realize the manual liquid pollination operation with large area, thereby overcoming the difficulty of sterilitas of the self flowers or low fruition rate of the self flowers of tree species in production; and the invention enhances the pollination quality, promotes fructification, saves labour and enhances the efficiency.

Disclosed is a plant protection device that combines the functionality of a solid walled style plant protector that is good for the establishment of a new plant / seedling and perforated style plant protector that is good for an established plant. The wall of a tree / plant protector and growth device has thin areas inherent in the wall that degrade faster than other parts of the same device wall. This occurs based on the weather conditions (wind / rain / cold), UV degradation, biodegradation, and other factors. Over time these areas open up, allowing air, sun light and other environmental elements to reach the plant / tree within the protector. Strategically placing the thinner areas allows for designs for different plant / tree species and applications. Applications for climatic regions—northern, aired, wetlands, etc. Other applications examples are reforestation, vineyards, windbreaks, etc. The degradation of the thin areas can be controlled by using different materials, UV stabilizer levels and other methods.

The invention discloses a tending method for promoting western sichuan subalpine natural secondary forest to restore by utilizing reserved trees. The method comprises the following steps: S1, selecting abies faxoniana, dragon spruce, hemlock, red birch and white birch as target tree species which need restoring in the secondary forest; S2, selecting the reserved trees; when the target tree species are the abies faxoniana, the dragon spruce or the hemlock, controlling the diameters at breast heights of the reserved trees to be more than or equal to 25cm; when the target tree species are the red birch or the white birch, controlling the diameters at breast heights of the residual trees to be more than or equal to 35cm; S3, dividing the restoration stage of the natural secondary forest according to the importance value of dominant tree species of community, wherein the restoration stage of the natural secondary forest is divided into a bushwood stage, a birch broad-leaved forest stage and a mixed broadleaf-conifer forest stage; S4, tending at the bushwood stage, tending at the birch broad-leaved forest stage and tending at the mixed broadleaf-conifer forest stage. In the restoration process of the western sichuan subalpine natural secondary forest, the reserved trees are fully utilized to tend and manage the secondary forest, so that the adverse effects of felling to the service function of a forest ecosystem can be slowed down, update is promoted, and the time for enabling the secondary forest to be restored into a forest after felling is shortened.

The invention discloses a kind of modified wood composition and its preparation method and application, which is part of the forest chemical industry. This invention of modified wood composition consists of low molecular urea-formaldehyde resin and methylol urea mixture; the described methylol urea mixture mainly consists of monomethylurea and dimethylolurea. The modified wood composition of this invention featuring low viscosity, water-solubility and good storage stability is suitable for the use of vacuum pressure impregnation of a variety of tree species, especially suitable for increasing the density of low-end plantation, function, etc. After the modification of plantation timber by the modified wood composition, the invention may significantly increase the timber size stability, overcome the cracking and deformation defects before the application, and significantly improve the physical and mechanical properties. The modified wood composition, if working with the functional reagents with good water-solubility as the flame retardant, preservative and so on, may improve the timber performance as fire-retardation, moth proofing, mildew proofing and antisepsis properties.

The invention discloses a tree species identification method based on a full-waveform LiDAR canopy profile model. The method comprises the following steps: an airborne small-pot full-waveform LiDAR sensor acquires data; the sensor records complete waveform information returned by each laser pulse; LiDAR waveform data is preprocessed; individual tree positioning and crown extracting are performed; a canopy profile model of the vertical structure and returned energy information of an individual tree is fitted based on Weibull distribution and a cubic spline function model, and model parameters are extracted as feature variables; and tree species classification is performed by a random forest classifier. The verification results of the invention show that the overall accuracy is increased by about 9% and the Kappa coefficient is increased by about 0.1 for the level of classification of four main tree species compared with a tree species classification method using remote sensing.