106 results about "Pine forest" patented technology

The invention relates to the technical field of traditional Chinese medicine planting, in particular to a method for artificially planting parispolyphylla. The method includes the steps: (1), land selection and preparation; (2), seed selection and treatment; (3), seeding and seedling growing; (4), transplanting; (5), field management; (6), harvesting. Seedling growing is performed in a pine forest, and environment in the pine forest is more similar to wild environment, so that high adaptability and high survival rate of seedlings can be realized, and medicinal value of wild medicinal materials can be retained as much as possible; profit can be acquired in short time after artificial planting, so that planting investment risk is lowered. The method has the advantages of simple operation, easiness in popularization, high profit, low risk and the like, a novel optimized scheme is provided for artificial large-scale planting of parispolyphylla, and the method has high economic and social benefit.

The invention discloses an ecological propagation method for wild sparassis crispa. The method comprises the following steps of: selecting a growing environment in which sparassis crispa exists, causing natural hypha infection by means of ditching, digging a pond, shoveling grass, plowing through cattle, treading through cattle and the like, collecting fruit bodies, purifying and culturing strains, manually infecting and propagating hyphae: selecting forestland, wounding root parts, naturally dipping hyphae, collecting fruit bodies, sieving for purifying and culturing strains, sowing to form manual hypha infection, growing hyphae in an environment with pine tree nutrition, or selecting tree seedlings of 1-2 years old, preparing aseptic seedlings, and infecting to form mycorrhizal seedlings of sparassis crispa; and transplanting into forestland containing water sources, and picking after maturity of wild sparassis crispa. The method is simple and convenient; manual infection, purifying and culturing are performed in a natural environment or a manual afforesting environment for cultivating a sparassis crispa source, and breeding and cultivation are performed, so that original pine forests and ecology are repaired, the quality of wild sparassis crispa is ensured, the yield is increased greatly, and manual biological propagation of wild sparassis crispa is facilitated.

The invention discloses a manufacturing method of carbon-baked Tie Guanyin tea, which is prepared by taking fresh tea leaves of Tie Guanyin tea trees in high mountains at the age of more than 5 years as raw materials, and then performing preliminary manufacturing, primary baking, secondary fermenting and secondary baking. In the method, as the tea leaves of the tea trees at the age of more than 5 years are taken as raw materials and the tea leaves are subject to secondary fermenting after primary baking, the tea become more infusion-resistant on the basis of preserving special taste and fire fragrance of the existing carbon-baked Tie Guanyin tea; the brewing times are more than 10 times as many as that of the common carbon-baked Tie Guanyin tea; and a user can adopt brewing, soaking, cooking and decocting modes so as to fully seep out tea juice, keep shape and taste unchanged after long cooking and still preserve the flavor of Tie Guanyin tea with golden color and mellow taste. In the invention, secondary fermenting is preferably performed in a pine forest so as to increase slight rosin flavor and achieve better taste.

The invention discloses organic compound fertilizer suitable for growth of asparagus lettuce. The organic compound fertilizer comprises the following components in parts by weight: 15-20 parts of straw mushroom dregs, 7-10 parts of pine forest surface soil particles, 5-8 parts of maize straw particles, 3-4 parts of silkworm excrement particles, 0.1-0.2 part of potassium sulfate, 0.2-0.3 part of potassium dihydrogen phosphate, 1.0-1.15 parts of urea, 0.01-0.02 part of sodium borate, 3-5 parts of plant ash and 60-80 parts of distilled water. The organic compound fertilizer disclosed by the invention is the solid-liquid combined type fertilizer; the fermented organic compound fertilizer provides necessary nitrogen fertilizer and potash fertilizer for asparagus lettuce in the growth process of the asparagus lettuce; solid components in the organic compound fertilizer are enriched on the soil surfaces of plant root systems, after being dispersed and diluted by liquid components, the solid components are drained to the plant root systems, and simultaneously, the liquid components contain lots of absorbable nutrient substances; and the whole fertilization process is simple and convenient, and all resources are comprehensively used.

The invention discloses a method by the adoption of biological control. According to the method, the populations of the monochamus alternatus of pine forests are obviously reduced and controlled, and the number of pines which die from bursaphelenchus xylophilus is also obviously reduced. Drone pupae of bombus hypocrita are adopted as hosts of sclerodermus sp., meanwhile proliferation conditions are regulated and controlled, and therefore the parasitic ability of the sclerodermus sp. obtained through proliferation is remarkably improved.

The invention discloses a method for reforming a low-yield turf pine forest. Aiming at the problems of poor genetic quality and lacking high-quality provenance of the turf pine forest, eupatorium adenophorum spread and soil erosion caused by high-strength intermediate cuttings, difficult survival of forestation nursery stock and the like, the low-yield turf pine forest is reformed into a Yunnan pine forest by using seedling culture with high-quality Yunnan pine nutrient bags, low-strength three-times tending and intermittent cutting of the turf pine forest, digging and soil preparation and artificial creation of a Yunnan pine container seedling mode so as to solve the problems of loss of soil and water, eupatorium adenophorum spread and poor artificial forestation quality during reforming, improve the genetic quality of the Yunnan pine and improve the forest quality and the forestation benefit. The method for reforming the low-yield turf pine forest is particularly suitable to be applied to reformation of the low-yield forest of a Yunnan pine distribution region.

The invention provides an artificial repellent for monochamus alternatus, which belongs to the technical field of controlling of insects. The artificial repellent is characterized by containing 8 to 19% of active components, 5 to 12% of synergistic components, 2 to 11% of a stabilizing agent and 63 to 81% of a solvent. Through mutual synergism of a plurality of the active components which have good repellent effects, the artificial repellent for monochamus alternatus provided in the invention can substantially repel monochamus alternatus larvae boring into pine trees and monochamus alternatus adults on the surface of pine trees; therefore, carrying and propagation of pine wood nematode by the pine trees can be mitigated, the survival rate of the pine trees can be increased, overflowing of pine wood nematode can be effectively controlled, and a transmission source can be cut off. Production process for the artificial repellent is simple and convenient, and monochamus alternatus does not generate resistance even under the condition of long-term usage of the artificial repellent; and the artificial repellent has the advantages of a good repellent effect, low production cost and suitability for large-area sprinkling usage in a pine forest.

The invention relates to a mode of cultivating paris polyphylla var.yunnanensis under a purple soil coniferous forest and belongs to the field of traditional Chinese medicinal material cultivation.According to the actual conditions that purple soil is the soil type which is great in distribution area in Yunnan province, soil physical properties are poor, water and soil loss is serious, and the purple soil-Yunnan pine forest is one of the main forest types, terraced fields are built according to the terrain, and ridges are protected through vetiveria zizanioides L.so as to retain soil moisture and prevent water and soil loss; under-forest soil improvement is conducted through organic fertilizer and lime; fertilizing is conducted in a balanced mode according to the nutrient features of soil under the purple soil coniferous forest and rules formed by the fertilizer-demanding characteristics and quality of paris polyphylla var.yunnanensis; the ecological environment is protected, water and soil loss is prevented, income of farmers is increased, and sustainable development of regional economy is promoted.

The invention provides a forestation method of interplanting a phoebe bournei yang under masson pine crown canopy. The method comprises the steps of conducting intermediate cutting on a masson pine forest stand to lower the canopy density of the original masson pine forest stand; digging holes under a masson pine forest crown canopy which is subjected to intermediate cutting; planting phoebe bournei yang saplings in the dug holes to conduct forestation; nurturing the phoebe bournei yang saplings after forestation. According to the technical scheme, by interplanting the phoebe bournei yang under the masson pine forest crown canopy, the ecological functions of an original masson pine forest can be maintained, the biological characteristics of the masson pine and phoebe bournei yang tree varieties can be made full use of, the pure masson pine forest is cultivated into an uneven-aged multi-layer mixed conifer-broadleaf forest, the forest stand quality is improved, the economic benefit is increased, the ecological function of the forest stand is promoted, and a new method and a new path are provided for the development of the rare tree variety of the phoebe bournei yang.

The invention relates to a large-scale planting method of organic polygonatum kingianurn under an artificial pine forest. The method includes the steps of selecting the artificial pine forest suitablefor polygonatum kingianurn growth and with the soil environment quality, irrigation water quality and environment air quality conforming to the national standards to plant the polygonatum kingianurn,applying rotten farmyard manure as a base fertilizer, keeping the under-forest light permeability at 25-30%, covering the ground for planting the polygonatum kingianurn with pine needles, keeping thesoil water content at 25% or above, preventing and treating the leaf spot disease or tan disease with a copper hydroxide solution, pouring a Bordeaux mixture on roots to prevent and treat the root rot, planting Chinese cabbage on the edges of a forest land to attract injurious insects (scarab or agrotis ypsilon) to eat, pouring a radix sophorae flavescentis alkaline water agent on roots to prevent and treat larvae, and inducing and killing adult insects through venom prepared by mixing sweet and sour liquid and a radix sophorae flavescentis alkaline water agent. The organic production aims for the environment and polygonatum kingianurn product quality safety are realized, the organic production cost is reduced, and the organic product quality is improved.

The invention belongs to the technical field of seed reproduction, in particular to a Bletilla striata seed direct seeding natural rapid reproduction seedling method.The method comprises the following steps that 1, ripe Bletilla striata capsules are sieved by a 120 mesh sample sieve for use after being dried in the sun; 2, a seed germination culture medium solution is prepared, 0.5-10 mg of NAA, 0.3-0.8 g of activated carbon, 100-150 g of potato juice with the concentration of 10%-15% by weight and 20-30 g of sugar are added to each liter of KC culture medium, and the pH value is adjusted to be 5.8-6.0; 3, 20 g of Bletilla striata seeds are placed into each bottle of nutrient solution to be soaked for 36-38 hours, and then green seed buds emerging by 0.2-0.5 mm are obtained by cultivation; 4, seedling is performed, the seedlings are moved out of a greenhouse after 3 or more leaves grow on the seedlings and are directly cultivated in a pine forest.

The invention relates to the technical field of native chicken breeding, in particular to a breeding method for native chicken. The stocking of the native chicken is treated by a manner of stocking in the morning and closing into a hencoop in the evening, and the native chicken are arranged in a pine forest, so that the loss caused by stormy weather during the stocking process of the native chicken is avoided; by combining the treatment manner of stocking in the morning and closing into the hencoop in the evening with the different growth cycles of the native chicken, different treating manners are adopted, so that the stress ability of the native chicken to the environmental change is enhanced, and the morbidity of the native chicken is reduced; furthermore, different nutrient solutions and feeds are adopted for feeding the native chicken in the different growth cycles, and the laying rate of hens in the native chicken is improved while the disease resistance of the native chicken is enhanced.

The invention provides a post-fire recovery method for a cold temperate zone grass type Xing'an larch forest burned area, and aims to put forward a detailed and systematic post-fire recovery method specific to burned areas of the grass type Xing'an larch forests in various damage extents. According to the recovery method for the cold temperate zone grass type Xing'an larch forest burned area in various conditions, through a burned area survey, the exact time of the forest fire, the damaged level of the burned area, the forest stand forest stand before the fire, the condition that whether larch seed trees in the burned area can provide sufficient provenances for area renewal or not, the site condition survey of the burned area and renewed plant investigation of the burned area can be determined, through the judge of seed year, different damage levels can be determined, and whether larch can provide sufficient provenances for area renewal or not can be determined, so that a technical support for large area burned area ecological restoration engineering construction is provided.

A pine forest health assessment method based on indexes of damage by Monochamus alternatus belongs to the fields of forest conservation, forest management and forest ecological system health, and includes the steps: firstly, selecting a sample land; secondly, investigating the indexes of damage by Monochamus alternatus within the land; thirdly, investigating health index of pine forest stands within the land; fourthly, building a regression model about the indexes of damage by Monochamus alternatus and health index of the pine forest; and fifthly, applying a pine forest health assessment model. By the pine forest health assessment method, the quantitative health index of pine forest stands is established, health conditions of similar forest stands can be conveniently and quickly assessed with the built regression model, operability is high, and accuracy and reliability of assessment results are high.

The invention discloses a local cock breeding method. The local cock breeding method comprises the following steps: feeding cocks in a pine forest; opening grooves in pines and putting pine oil storage bags for receiving pine oil flowing out from the grooves under the grooves, wherein the cocks in the pine forest eat pine oil in the pine oil storage bags, and pine needles and pine leaves which fall off from the pines; and putting corns, rice husks and water into the pine forest for the cocks to eat. The cocks are bred in the pine forest, and eat the pine oil flowing out from the pines and the pine needles and pine leaves which fall off from the pines; and chicken has a high nutritive value and relatively good meat quality, and the cocks does not easily have diseases.

The invention discloses a wild-simulated pine forest land cultivation method for Tetrastigma hemsleyanum. The method comprises the following steps of site selection, special Tetrastigma hemsleyanum bag production, special Tetrastigma hemsleyanum cultivation medium production, Tetrastigma hemsleyanum seedling planting, cultivation management, harvesting, crop rotation and the like. According to thecultivation method provided by the invention, special Tetrastigma hemsleyanum bags are made of linen through sewing, are environmentally friendly and have no need of perforating, so that the method is simpler, and the cost is lower; by adding a certain proportion of pine needles, a planting process is not prone to caking; and the pine needles are convenient in source, so that the Tetrastigma hemsleyanum planted by the method is high in yield.

The invention discloses a cultivation method for making an endangered thousand-year-old tree rejuvenate. According to the method, in the early stage that the endangered thousand-year-old tree is aboutto wither, faces death and is near extinction, the environmental, climatic and cultural cultivation is used, pine forest resources and environments for wild plant growth are protected, habitats and growth sites of wild animals and plants are recovered, man-made excessive deforestation and disordered exploitation and trampling are inhibited, and the tree-protecting awareness and tree-growing behaviors of people are achieved. The technologies of soil protection, weir building and earth filling, tree shaping, branch pruning, tree holding, tree supporting, tree protection, fertilization, watering, seed breeding, seed harvesting, seed storage, seed germination acceleration, sapling cultivation, transplanting and planting, grafting and regeneration are utilized, and disease and pest control iswell conducted, so that the endangered thousand-year-old tree rejuvenates, and luxuriant propagation and growth of branches and leaves are achieved; the protection of the endangered thousand-year-oldtree is beneficial to carrying out scientific research in China and achieving the sustainability of human landscapes, people can enjoy good life, and the endangered thousand-year-old tree can be scientifically utilized valuably.

The invention discloses a method for controlling Chinese pine caterpillars, which aims to achieve the efficient and thorough control effect. The method for controlling the Chinese pine caterpillars comprises the following steps of: mixing 2.5 percent deltamethrin with diesel oil in a mass ratio of 1:(15-18) to obtain a pesticide, spraying the pesticide to form a pesticide ring with the width of between 5 and 7cm at a position, which is 0.8 to 1m away from the ground, on a trunk by using a plastic atomizer, and fixing a plastic ring with the width of between 5 and 7cm above the pesticide ring on the trunk. In the method, medicaments and plastic cloth have lower expenses, the control cost is low, and the ecological pollution is low; the method is suitable to be promoted in Chinese pine forests of which the trunks are higher in forest land; meanwhile, the death rate of the Chinese pine caterpillars can reach 93 percent by using the pesticide ring and the plastic ring to control the Chinese pine caterpillars.

The invention discloses a monochamus alternatus repellent. The repellent comprises in percent by weight: 10-30% of p-allylanisole, 60-80% of a solvent and 5-10% of a synergist. The invention also discloses a preparation method of the monochamus alternatus repellent. The beneficial effects are as follows: the monochamus alternatus in the pine forest can be significantly repelled by the synergisticaction of the active components with good repelling effects, the carrying and spreading of bursaphelenchus xylophilus is reduced, the survival rate of pine trees is improved, the flooding of bursaphelenchus xylophilus can be effectively prevented and treated, and the transmission path is cut off. The biological prevention and treatment concept is used, the preparation of the repellent is simple and convenient, the cost is low, the resistance to monochamus alternatus cannot be caused for the long-term use, and thus the repellent is suitable for the hanging and slow-release use in a large area in the pine forest.

The invention provides a correction method for measuring a leaf area index by use of a plant canopy analyzer, relates to a correction method for measuring the leaf area index and aims at solving the problem that the existing measuring method by use of the LAI-2000 plant canopy analyzer is limited and low in leaf area index estimation accuracy. The correction method is used for obtaining an LAI value by use of the LAI-2000 plant canopy analyzer; correction is based on a formula as shown in the description; in the formula, L represents the LAI numerical value after correction and Le represents the LAI numerical value before correction; alpha, omega E and gamma E in the formula are correction coefficients, wherein alpha is the proportion of a lignin index in the total LAI, and the values of alpha of an artificial Korean pine forest and a betula platyphylla secondary forest are 0.03 and 0.04, respectively; omega E is a crowding index, and the values of omega E of the artificial Korean pine forest and the betula platyphylla secondary forest are 0.95 and 0.87, respectively; gamma E is a needle-cluster ratio. The correction method for measuring the leaf area index by use of the plant canopy analyzer takes the influence of the crowding effect into account and is comprehensive in the range of consideration, and the obtained data are true and reliable.

The invention discloses a light source specially used for trapping and killing an imago of Monochamus alternatus Hope, a method and an application thereof. The wavelength of light wave of the specially used light source is 340 nm. The method comprises the following steps: firstly, mounting the light source on an intelligent solar insect-trapping lamp; mounting the lamp in a place with sparse trees and unshielded light in a pine forest destroyed by the Monochamus alternatus Hope; and placing an insect-killing basin under the lamp. The light source can be applied to the pine forest, such as Pinus massoniana Lamb., Pinus tabulaeformis Carr., and the like, and other pine forests with the trees destroyed by the Monochamus alternatus Hope. The imago of the Monochamus alternatus Hope can be efficiently trapped and killed.

The invention discloses a dead pine tree identification method and system based on a high-resolution image. The method comprises the steps of firstly, obtaining a pine forest visible light image and anear-infrared image to serve as original image data, and preprocessing the original image data to form to-be-classified image samples; secondly, performing ground object color feature extraction on verified disease and pest damaged tree wave spectrum information, classifying color features of a ground object according to different stage states of dead pine trees, and generating training samples and a plurality of parameter rules; thirdly, performing the ground object color feature extraction on all pixel points in the to-be-classified image samples by using the training samples and the plurality of the parameter rules; and finally, performing denoising screening classification on sample pixel points in the to-be-classified image samples subjected to the ground object color feature extraction, thereby generating a state classification result of the dead pine trees. Therefore, high-detection-precision identification of the dead pine trees with different disease areas and different disease degrees under the condition of complex terrains is achieved; and the processing speed is high and the stability is extremely high.

The invention relates to a method for accelerating decomposition of mountainous artificial Chinese pine forestland litters, and belongs to the technical field of litter decomposition. The rainy season from June to August is selected, Chinese pine understory shrubs and herbs are mowed, the mowed shrubs or herbs cover the forestland surface, then a compound microorganism bacterium agent is applied to the Chinese pine forestland litters after a rain with the rainfall capacity being greater than 5 mm, the applying amount is 36-60 kg / ha, and the compound microorganism bacterium agent comprises, by weight, 1-2 parts of a straw-decomposing inoculant, 5-8 parts of a water absorbent, 3-5 parts of an adhesive agent, 2-3 parts of urea, 1-2 parts of saccharose and 30-40 parts of sandy soil. The method is easy to operate, only two times of manual operation, namely mowing and applying of the compound microorganism bacterium agent needs to be conducted, through the combination of the two aspects of shrub cutting and herb removing during the growing period and microorganism activity factor adjustment, the decomposition speed is increased, microorganisms are in a natural state, the decomposition rate of the Chinese pine forest litters can be increased by 90% or above, and the litter decomposition rate can be increased by 69% or above compared with that achieved by the mode that only a straw-decomposing inoculant is applied.

The invention discloses a method for trapping and parasitic enemy integrated control over pine shoot insects, and belongs to the field of biological control. The method further comprises the followingsteps that a lure with pheromone is put into a trapping device; the trapping device is hung in a pine forest, in the stage of first appearance of adults, the natural enemy trichogramma is released. By means of the method, the problems can be effectively solved that the pine shoot insects are monitored inaccurately, and time and labor are wasted in the control process, and the method has obvious economic and ecological benefits.

The invention belongs to the technical field of pine wood nematode disease image recognition and detection, and particularly relates to a pine wood nematode disease image recognition and detection method and a pine wood nematode disease image recognition and detection device, pine wood nematode disease is detected by setting a deep learning target detection technology, the recognition efficiency of diseased wood can be effectively improved, and the detection precision is relatively high; the image intelligent identification and positioning method adopts a unified discrimination standard, so the coverage rate of identification results is effectively improved, and the generalization ability is high. According to the above advantages, the pine wood nematode disease image identification and detection method can timely discover infected pine trees and determine the distribution condition of the pine trees, effectively monitor the development trend of pine wood nematode disease epidemic situations, and provide timely and accurate information for pine forest management personnel and forest protection personnel.

Then invention discloses a greenhouse azalea seedling-raising method which mainly comprises the steps of greenhouse nursery land selection, soil preparation, seedbed preparation and shade shed building, scion collecting and treatment, cuttage, and after-cuttage management. According to the greenhouse azalea seedling-raising method, based on the fact that most azalea grows in mountainous shrubland or pine forest at an altitude of 500-1200 (-2500) meters, grows well in a cool and moist climate and rejects a hot and dry climate, soil selection and improvement are very important; alcohol anaerobic lees, a microbial agent, edible fungus residues and phosphogypsum are used as main raw materials for preparing a saline-alkali soil improver, the alcohol anaerobic lees are more obvious in soil improving effect, good in chelating performance and high in soil fertilizer utilization rate, and the green food standard is reached; thus, the saline-alkali soil improver is used for enhancing the effectiveness of trace elements in soil and improving soil fertility, the activity of microorganisms and enzymes in the soil can be improved, pathogenic microorganisms can be inhibited, and the plant resistance can be enhanced.

The invention provides a method for preventing and controlling pine sawflies as pine tree pests by using drino inconspicua meigen. A double-layered silk net box with different mesh apertures is adopted, in the silk net box, meshes of a silk net on the bottom layer are large, meshes of a silk net on the upper layer are small, the silk net on the upper layer has 12 meshes, the silk net on the lowerlayer has 10 meshes, several small holes are formed in a position which is distant from a bottom plate by 0.2 cm, the humidity of lining paper is maintained, thus, parasitic natural enemies on the bottom layer of a box body can fly out smoothly, but adult pine sawflies cannot fly out; by the bottom plate, tachina fly mature larvas can enter the bottom layer of the box body to pupate, but pine sawfly cocoons cannot drop to the bottom layer of the box body, and thus, natural enemy insects are separated from host insects; and after the cocooning peak hour of the pine sawflies from October to November every year, cocoons of the pine sawflies are collected in field, are closed in a box, and are flatly placed in a field pine forest, the drino inconspicua meigen can fly out after emergency from November to February, and when the pine sawflies begin to emergence in the middle ten days and the last ten days of March, the cocoons of the pest sawflies in the box are burnt up to prevent emergence,mating and spawning of the pine sawflies. By the biological prevention and control method, an ecological environment is protected, furthermore, the prevention and control cost is reduced, and thus, agood prevention and control effect is achieved.

The invention provides an image-based epidemic wood detection and positioning method and system. According to a multi-scale candidate region fusion network designed by the invention, the RPN(S-RPN) of a small target is detected to obtain a feature map through ResNet18, the RPN(M-RPN) of a medium target is detected to obtain a feature map through ResNet32, and the RPN(L-RPN) of a large target is detected to obtain a feature map through ResNet50. Non-maximum suppression (NMS) is then employed to reduce redundant candidate regions. The network can solve the problem that a current target detection network model based on a deep neural network is difficult to deal with multi-scale pine forest epidemic wood detection. According to the invention, the three-dimensional positioning geometric model of the epidemic wood is constructed according to the camera imaging principle of the holder monitoring tower and digital terrain elevation data (DEM), and the three-dimensional positioning of the epidemic wood outbreak point can be accurately realized. The method and the system are simple and rapid, and can improve the monitoring and early warning capability of the pine forest epidemic wood.

The invention discloses a protecting net and method for a diseased tree infected with nematodes. The protecting net comprises a mesh bag with an opening and a mesh cover, wherein the mesh cover is arranged at the opening of the mesh bag and connected with the mesh bag through a zipper in an openable manner. When the protecting net is used to treat the diseased tree, the diseased tree infected withthe pine wood nematodes is sealed in the mesh bag, the mesh cover is used to close the mesh bag by zipping the zipper to form a sealed protecting net structure, long-horned beetles in the diseased tree is sealed in the protecting net and starved to death, the spreading of the pine wood nematodes is cut off, and destructive disaster caused by the spreading to a pine forest is avoided; the pure natural treatment manner is used, the treatment of the diseased tree is simple and convenient and high in safety, nematode spreading is controlled after the long-horned beetles are starved to death, threat to pine trees which are not infected with the nematodes is reduced and alleviated, and greater contribution is made for the creation of a green ecological environment.

The invention relates to a method for increasing the yield of pachymic acid of poria cocos liquid fermented mycelium. The method comprises the steps of performing liquid fermentation on the a poria cocos bacterial strain ZJ2, and adding a masson pine extract, cellulose and composite vitamin B into a liquid seed culture medium and / or a liquid fermentation culture medium for poria cocos fermentation. By the method provided by the invention, the yield of the poria cocos mycelium can be optimized and maximized, the pachymic acid content of the mycelium is increased, industrialized production of the mycelium can be realized, the problem of damage to wild pine forest resource caused by the fact that poria cocos sclerotium is cultivated by pine tree pockets is solved, and foundation is laid and technical guarantee is provided for comprehensive development and industrialized production of the medical and edible value of the poria cocos ; the method is simple in process, effective and short in fermentation cycle, has application value in industrialized production, and can successfully fulfill the aim of obviously increasing the yield of the expression products.