90results about How to "Reduce the cost of afforestation" patented technology

The invention relates to a method for building a local mangrove forest on an intertidal zone unsuitable for forestation, belonging to the technical field of forestation on the intertidal zone. The method comprises the steps of: planting a Sonneratia apetala forest on the intertidal zone unsuitable for forestation; after the Sonneratia apetala forest is planted for 2-3 years, eliminating all Sonneratia apetalas ; and re-planting the local mangrove forest on the intertidal zone after the Sonneratia apetalas are eliminated. The mangrove forest is built on the intertidal zone unsuitable for forestation by applying the method provided by the invention, which can not cause interference on a coast wet land environment, but also avoids the ecological invasion risk; and the mangrove forest has a high survival rate.

A stereo-culture method for Camptotheca acuminata, enqlish yew and rosemary features that they are planted at different densities according to their biologic and ecological characteristics to increase their yields per unit area.

The invention discloses an uneven-aged mixed plantation method of pine trees and broad-leaved trees. Suitable mixed plantation trees are selected at places where plants do not survive in a pure pine tree forest according to different site conditions; 1 to 3 types of mixed plantation tree seedlings are randomly planted according to a certain ratio. According to the method provided by the invention, the suitable trees with relatively high economic value are subjected to mixed plantation through utilizing a natural law that part of the plants do not survive in a pine tree forest growth process, and protection and acceleration effects on the broad-leaved trees of the pine trees are expressed, so that the planting survival rate of the broad-leaved trees under the different site conditions can be improved, and the forestation effect of a mixed plantation forest is remarkably improved; the forestation cost of the mixed plantation forest is reduced and the forestation time of the mixed plantation forest is shortened. Practice shows that a masson pine pure forest can be effectively modified into the mixed plantation forest, and the mixed plantation trees adaptive to a masson pine planting region can be selected from castanopsis hystrix, erythrophloeum ferdii, castanopsis fissa and the like. Therefore, the method has relatively strong practicability and operability, has a good popularization and application prospect, and has relatively good economic benefits and ecological benefits.

The invention discloses a method for minitype quick breeding of sympodial bamboos nursery, which uses fasciculate bamboo shoots as minitype stock plant to be planted in a nursery for breeding new bamboos; when the root of stalk of the new budding bamboo grows, the new bamboo and the stock plant are separated and cultured in situ; when the root of the new bamboo grows and the lateral branch draws out, the new bamboo is implanted on seeding bags for culturing into seedlings of complete plantlet. The method provided by the invention is wide in application, simple in operation, low in cost and high in efficiency, and is a new technology with wide market prospect for bamboo plant breeding.

The invention relates to a method for rapidly culturing colorful tree and broad-leaved tree seedlings in a container for forestation, which comprises the steps as follows: 1, choosing uncontaminated and full smoke tree seeds and steeping the smoke tree seeds in clean water for storing in sand; then after supplementing water to the smoke tree seeds in spring, sowing the smoke tree seeds after 70 percent of the smoke tree seeds open mouth to sprout; 2, bedding and placing the smoke tree seeds in basins; 3, raising seedlings: sowing the sprouted smoke tree seeds in a seedling basin by a spot seeding method with temperature being controlled at 15-28 DEG C and the humidity at 60 percent, covering the smoke tree seeds with sand, spraying the smoke tree seeds and finally covering the smoke tree seeds with a row cover; then performing thinning, watering, dressing, pinching and preventing disease and insect pest; and 4, foresting. The invention realizes the purposes of raising seedling and forestation in the current year to avoid natural drought, prolongs the forestation time, has no growth delaying period, reduces the forestation cost, increases the emergence rate in unit area and improves the survival rate of forestation.

The invention discloses a method for mixed plantation of Chinese fir and broad-leaved trees at different ages. In the standing forest skylight plot of a pure Chinese fir forest, suitable broad-leavedtree species are selected according to different site conditions, 2-3 young broad-leaved tree species are subjected to mixed plantation according to a certain standing forest spatial structure, and the mixed plantation tree species can select castanopsis hystrix, erythrophloeum ferdii, sweetgum, quercus griffithii, michelia hedyosperma, manglietiastrum sinicum, michelia macclurei, phoebe bournei,etc. Practice shows that the method provided by the invention can effectively transform the pure Chinese fir forest into a mixed plantation forest, has high practicability, operability, and good application prospects, can effectively improve the ecological function of the existing pure Chinese fir forest, and has good economic benefits and landscape effects.

The invention relates to a technical method for recovering and reconstructing an ecological public welfare forest in combination of natural recovering update and manual afforestation based on countryside diversity and local conservation of resources thereof. The technical method comprises the following steps that afforestation is carried out in planting areas in a sloping scrub according to the scheme of staggered arrangement of planting areas and retaining areas along contours, the planting areas play the role of promoting growth of target tree species, and retaining areas bring the local conservation of countryside biological diversity into play. Generally, in the slope of 15-25 degrees, the felling width of each planting area is usually designed to be 2.0-5m, and each scrub area with the width of 1.5-3m is retained. The initial afforestation density is controlled to be 1500-2100 trees per hectare, when a slope is relatively small (5-15 degrees), the initial afforestation density can be increased to 2300 trees per hectare, and the maximum afforestation density is not over 2500 trees per hectare. The technical method is carried out by utilizing the afforestation method of common pit planting, a planting pit is as deep as 40-50cm, the diameter of a pit surface is 30-40cm, and the pits are horizontally arranged or in a triangular shape.

The invention discloses a method for water-fed forestation in arid hillside fields of arid-hot river valleys, pertaining to the technical field of water-saving agriculture. The method comprises the steps of digging large ponds, backfilling prepared fertilizers, cultivating, strengthening and field planting seedlings, timely field planting against the rain in rain season, covering with grass to keep water, top dressing in rain season to promote the seedlings, wherein, the length, the width and the depth of the planting hole of an arbor tree is 120 cm multiplied by 80 cm multiplied by 100 cm while a frutescose tree is 80 cm multiplied by 50 cm multiplied by 60 cm and the planting hole is perpendicular to slope direction; when backfilling the soil, the soil in each pond is mixed with 5 kg to 10 kg of organic fertilizer and 2 kg to 4 kg of mixed fertilizer of calcium, magnesium and phosphate fertilizers; field planting is carried out in May to June with sufficient rain water; after the field planting of nursery stocks, the weeds are cut in time for covering the tree pond; approximately 20 days after the field planting of the nursery stocks, quick effective nitrogen fertilizer is applied in proper time. Adoption of the method of the invention can enhance the survival ratio of forestation in arid hillside fields of arid-hot valleys under the circumstances of no irrigation water to more than 95 percent and the preservation rate to more than 90 percent. The technology of the invention is scientific, reasonable and feasible and has high significance in revegetation and ecological reconstruction of arid-hot river valleys.

The invention discloses a culturing and seedling-growing method of hard-branch cutting spikelets of teaks. The culturing and seedling-growing method comprises the following steps of selecting annual-good-clonaltissue culture seedlings as mother plants, cutting the trunks, and planting the seedlings in a garden; when the sprouts are 30-50cm, remaining two thick and strong symmetrical sprouts, removing residual sprouts; between August and September from the second year to the third year, collecting hard branches as cutting spikelets, carrying out seedling raising by cutting, finally shearing all the sprouts of the collected hard branches, and continuously culturing new cutting spikelets. The culturing and seedling-growing method disclosed by the invention has the advantages that the technology is simple, the operation is easy, the requirement for the implementing condition is not high, the management time in the seedling stage is shorter, and the seedling raising cost is low, so that the culturing and seedling-growing method is very suitable for being promoted and used in production; the cutting seedling is thicker and stronger, the root system is developed, the survival rate in forestation is high, and the growth of the current seedlings for forestation is faster, so that the forestation cost can be saved and the forestation quality can be improved.

The invention discloses a high-yield afforestation planting method of high-quality milk jujube, belonging to the technical field of plant cultivation. The method comprises the following steps: (1) obtaining nursery stock; (2) exercising seedling; (3) selecting cultivated fields; (4) reclaiming the cultivated fields; (5) transplanting; (6) carrying out young forest intercropping; (7) carrying out clay fertilization and water management; (8) pruning; (9) increasing the set of fruit; (10) comprehensively preventing and curing plant diseases and insect pests. The method has the advantages that the afforestation cost can be reduced, the survival rate can be obviously improved, the standing forest is regular, the scientific operating management can be conveniently carried out, the fructescence can be shortened, the quality and the yield of the milk dates can be improved, the happening of various plant diseases and insect pests can be greatly restrained, the popular jujube witches broom can be effectively controlled particularly, the occurrence rate of the standing forest jujube witches broom can be greatly reduced, and the shrinking conventional industry can be rescued.

The invention discloses a method for afforestation seeding under the condition of difficult land cultivating. The method comprises the following steps: firstly, selecting drought-enduring and infertile-resisting plant seeds, then mixing loess soil and an organic fertilizer to prepare nutrient soil, subsequently, disinfecting, soaking and drying the plant seeds in shade and then mixing the plant seeds with the nutrient soil, covering a layer of nutrient soil on the surface of the plant seed to prepare a seed nutrition cover, conducting land preparation and excavation on barren mountains and slopping fields with gangues and mineral waste residues at intervals, mixing the seed nutrition cover and a water retaining agent and the planting the mixture in a hole, and covering soil on the hole. In the invention, as the plant seed is drought-enduring and infertile-resisting, and the water retaining agent can absorb a large amount of water in rainy days, release water slowly in sunny days, and can sufficiently guarantee the water needed by sprouting of the plant seeds and the growth of seedlings, so that the plant seeds can obtain enough water and nutrition, the seed sprouting rate is improved, and the seedling survival rate is improved. According to the method for afforestation seeding, the operation is simple, the afforestation cost is low, the survival rate is high, and the average survival rate is more than 83.3%.

The invention provides an aquilaria-sinensis large-bag seedling cultivating method. Cultivating of aquilaria-sinensis large-bag seedlings is researched from the points of selection of the specification of large bags, the ratio of a matrix, the optimal shading rate, selection of fertilizers and the like. The result indicates that Chengmai foreign soil, burned soil, sand and phosphate fertilizers are used as raw materials of the matrix, and the mass ratio is 40:40:(10-30):(1-3). Non-woven cloth bags in proper sizes are selected, and the sunshade rate of selected shading nets ranges from 50% to 70%. Volfertile fertilizers are used as slow release fertilizers, the aquilaria-sinensis large-bag seedlings with the height of 1.5 m or above can be cultivated after 1-2 years of cultivation, and the survival rate can be 98% or above.

The invention discloses a non-woven fabric container cutting seedling raising method of Fraxinus velutina twigs. The non-woven container cutting seedling method includes the following steps: (1) preparing cutting media: the cutting media are formed by preparing the following raw materials according to the volume percent: 15-25% of perlite, 5-15% of vermiculite, 65-75% of turfy soil, 2-7% of bagasse and 3-8% of saw dust, and spraying carbendazim solutions on the cutting media for disinfection; (2) preparing rooting agents: dissolving 100-400mg naphthylacetic acid in 40-50mL 95% ethyl alcohol, filling in 20-30mg 2,4-dichlorophenoxyacetic acid, 5-10mg zinc nitrate, 5-10mg nitric acid molybdenum, 5-10mg lanthanum nitrate and 40-50mg boric acid, filling in water until the solutions are at 1,000mL, and evenly mixing the solution; (3) preparing and treating cutting slips; (4) inserting the cutting slips into the cutting media, wherein the cutting depth is 8-9cm; (5) moving the non-woven fabric seedling raising container into a greenhouse, and erecting a shading screen for shading, wherein the shading percentage is 60-70%, the indoor temperature is kept at 26-29 DEG C, and the humidity is kept at 85-90%. The non-woven fabric container cutting seedling raising method of Fraxinus velutina twigs improves the survival rate and ensures to cultivate robust high-quality seedlings.

The invention relates to the technical field of hard-branch cutting afforestation methods for Chinese tamarisk of arid and semi-arid areas, in particular to a hard-branch cutting afforestation method for Chinese tamarisk of arid and semi-arid areas in summer. According to the hard-branch cutting afforestation method for the Chinese tamarisk of the arid and semi-arid areas in summer, the cutting survival rate and the retention rate of the Chinese tamarisk in summer can be remarkably increased, and hard branches of the Chinese tamarisk can survive through cutting in the arid and semi-arid areas in summer. In the method, the stored Chinese tamarisk hard-branch seedlings are combined with the modern irrigation technology, so that the adverse effects on Chinese tamarisk cutting afforestation by limiting factors such as aridity, high temperature, wind and sand are effectively reduced, the time breakthrough of the Chinese tamarisk cutting afforestation is achieved, and the method has important practical significance to forestry and ecological construction, especially large-scale afforestation and ecological construction. In addition, compared with conventional afforestation by planting seedlings, the method has the advantages that no seedlings need to be purchased or allocated or transported, neither digging nor planting is required, and afforestation cost is reduced by 80 percent.

The invention discloses a method for cultivating high-quality milk jujube grafted seedlings, and belongs to the technical field of plant grafted seedlings. The method comprises the following steps of: (a) selecting rootstock seeds; (2) soaking the seeds; (3) sprouting; (4) leveling a nursery; (5) producing a seedbed; (6) sowing the rootstock seeds; (7) rootstock seedling growth period management; (8) adopting a scion; (9) selecting grafting and grafting conditions; (10) integrated management of grafted seedlings; (11) integrated pest management. The method provided by the invention has the advantages that: the sprouting and the nursery leveling are simultaneously carried out, so that the cultivation time of the rootstock seeds is shortened; the seeds are strictly soaked, so that the survival rate of the rootstock seeds is improved, the afforestation cost of the grafted seedlings is reduced, the afforestation stands are neat, and the maturity of fruits is shortened; jujube seedlings are cultivated into rootstock seedlings to be grafted, so that the witches broom, blight and other diseases can be effectively controlled, and the traditional milk jujube products are saved.

The invention discloses a method for planting seedlings and afforesting in a sand land of an arid region by using sand land shrub mulberry bare-root seedlings. The method comprises the following steps: (1) digging a motor-pumped well and determining an afforesting land; mounting and laying a trickle irrigation facility; (2) preparing nursery stocks before field planting; (3) determining field planting time; (4) preparing a water source before afforesting; (4) carrying out field planting on the nursery stocks; (6) carrying out root promotion measures after planting; (7) carrying out recovering management; and (8) carrying out conventional management. The invention provides a special nursery stock planting device for the method. According to the method for planting the seedlings and afforesting in the sand land of the arid region by using the sand land shrub mulberry bare-root seedlings and the special nursery stock planting device for the method, the time limitation of conventional afforesting is broken through and planting work of one seedling can be finished within seconds; the current-year survival rate of afforesting is up to 95% and the preserving rate of the next year is up to 85%; an afforesting procedure is optimized and an afforesting step is simplified, so that a seedling planting and afforesting process of the sand land shrub mulberry bare-root seedlings is simplified, the afforesting cost is saved; the recovering period is shortened, the survival rate and preserving rate of the nursery stocks are improved and the afforesting effect is relatively good.

The invention relates to a method for intercropping lycium barbarum and honeysuckles in an arid desert area. The method includes the following steps of 1, excavation of lycium barbarum planting furrows; 2, excavation of intercropped honeysuckle planting furrows; 3, seedling selecting, wherein one-year-old lycium barbarum seedlings without disease and pest damage and one-year-old honeysuckle seedlings without disease and pest damage are selected; 4, planting, wherein after soil is unfrozen in spring of the next year, the lycium barbarum seedlings and the honeysuckle seedlings are pulled up and then immediately planted through a seedling planting device; 5, field management. According to the method, as the lycium barbarum and the honeysuckles are intercropped, reciprocal symbiosis of the reciprocal symbiosis and the honeysuckles under the arid desert condition can be achieved, the problems that when only the lycium barbarum is planted, benefits are single, and the survival rate of plants is low are solved, organic unification of ecological benefits, economic benefits and social benefits of desert governing is achieved, and technical supports are provided for safe and efficient agricultural yielding of the arid desert area accordingly.

A mountain area small excavator soil working oil-tea camellia plantation method relates to a south mountain area oil-tea camellia plantation method using a small excavator to carry out soil working and digging, thus solving the disadvantages in artificial digging large pits and middle and large excavator soil working; the novel mountain area small excavator soil working oil-tea camellia plantation method is fast in oil-tea camellia growth speed, low in afforestation cost, reasonable in afforestation density, convenient in management, and small in water and soil loss; the method comprises the following steps: woodland selection, soil working and digging pits, building forest road, applying fertilizer, backfilling soil, seedling selection, planting, and tending management. The mountain area small excavator soil working oil-tea camellia plantation method is suitable for south mountain areas.

The invention discloses a non-irrigation forestation revegetation method for arid desert areas, including the steps of (1) selecting drought enduring plants, which refer to the native vegetation mainly, in the arid desert areas; (2) digging plant holes and applying a soil moisture conservation repair agent prepared by mixing natural-sodium bentonite and decomposed coal in the plant holes; (3) planting the vegetation to the plant holes, backfilling with fine soil, treading down soil around the root to form water-collecting pits; (4) irrigating water fully after planting, wherein watering is omitted in the later period. The revegetation method has wide adaptability to forestation in the arid desert areas; the soil moisture conservation repair agent and the water collecting pits can improve ecological remediation performance of the arid desert areas, the survival rate of seedlings is up to or even more than 80%, the preserving rate is up to or even higher than 75%, and the seedling growthis increased while forestation cost is lowered; therefore, the method solves the difficult problem in non-irrigation forestation revegetation on the natural condition with annual precipitation beingor greater than 50 mm fundamentally.

The invention provides full-nutrient interference liquid for four-season waterless trees in arid regions and a preparation method of the full-nutrient interference liquid. The full-nutrient interference liquid is formed by culturing photosynthetic bacteria, lactic acid bacteria, actinomycetes, filamentous bacteria and saccharomycetes and fermenting the bacteria with other strains, minerals and special additives, wherein the contents of the photosynthetic bacteria, the lactic acid bacteria, the actinomycetes, the filamentous bacteria, the saccharomycetes, the strains, the minerals and the special additives are 0.3-0.5%, 0.4-0.6%, 0.6--0.8%, 0.2-0.4%, 0.9-1.1%, 0.4-0.6%, 50-55% and 47.2-50% by weight respectively. Seedlings treated by the full-nutrient interference liquid are planted in northern regions with the annual rainfall of 100-400 mm without watering, watering is not needed in a three-year breeding period, and the trees can be planted in four seasons. The afforestation efficiencyis greatly improved, the afforestation cost is effectively reduced, water resources are greatly saved, and the afforestation area is enlarged.

The invention relates to a cultivation method of haloxylon ammodendron suitable in an arid desert region. The method comprises following steps: (1) excavating planting furrows of haloxylon ammodendron: opening furrows which are 35-45 cm wide and 25-35 deep along a latitudinal direction by utilizing a tractor with ploughshares in the arid desert region from late autumn to early winter such that the distance between furrows ranges from 3 to 5 m; (2) selecting seedlings for haloxylon ammodendron: selecting seedlings without plant diseases and insect pests of annular haloxylon ammodendron; (3) planting haloxylon ammodendron: adopting a seedling planting tool to plant haloxylon ammodendron seedlings after soil thawing in spring next year; (4) performing maintenance management of haloxylon ammodendron.The cultivation method of haloxylon ammodendron suitable in the arid desert region has following beneficial effects: intensity of labour is greatly reduced; planting and irrigation of haloxylon ammodendron seedlings can be integrated; planting time is shortened; survival rate of seedlings is increased and time and water can be saved.

The invention discloses a green tea planting method, comprising the steps of land selection, land preparation, planting trench digging, tea seedling selection, transplanting, tea garden management and overwinter management. According to the green tea planting method discloses by the invention, the transplanting and planting survival rate of tea seedlings can be increased, the tea seedling survival rate and the tea bush survival rate are high, enthusiasm of tea growers is improved, afforestation cost is lowered, and the green tea planting method is beneficial for forestland management, and has a good economic benefit. In addition, the quality of finished tea products is higher.

The invention discloses a cultivating method for basal coppice shoots of cunninghamia laceolata and a cutting seedling method. The cultivating method is characterized in that excellent single plants of isolated trees, sparse forests or sprout forests of the 8-25-year cunninghamia laceolata are selected; preconditions of not cutting down forest and preserving existing resources are obeyed; no cutting orchard needs to be newly built, coppice shoots are cultivated by adopting a method for promoting sprouting of basal parts, and the key problem of cutting seedling of the cunninghamia laceolata is solved in a targeted manner. The obtained cutting seedlings are relatively thick and strong, and have developed root systems and high afforestation survival rate; nursery stocks in the same year of afforestation grow quickly, so that the afforestation cost can be reduced and the afforestation quality is improved; meanwhile, the cultivating method and the cutting seedling method disclosed by the invention have the advantages of simple technology, easiness in operation, land conservation, less material consumption, high yield and low cost; the breeding period can be shortened by 5 years or longer; the cultivating method and the cutting seedling method are quite suitable for being popularized and used in production.

The invention discloses a method for improving a saline-alkali soil matrix for seedling cutting, and belongs to the technical field of seedling cutting soil matrix improvement. The method for improving the saline-alkali soil matrix for seedling cutting comprises the following steps of (1) taking nutrient soil and saline-alkali soil according to the weight proportions, wherein the weight proportion of the nutrient soil ranges from 55% to 65%, and the weight proportion of the saline-alkali soil ranges from 45% to 35%; (2) combining the nutrient soil and the saline-alkali soil in an independent block mode, namely, digging holes in the saline-alkali soil, and filling the holes with the nutrient soil; (3) disinfecting the nutrient soil and the saline-alkali soil. According to the method for improving the saline-alkali soil matrix for seedling cutting, the design is reasonable, operation is easy, the needed matrix improvement measures are provided for in-situ seedling cutting culture or forestation of the saline-alkali land, the survival rate of seedling cutting of the saline-alkali land is increased, the forestation cost of the tidal flat saline-alkali land is reduced, the site environment of the saline-alkali land is improved, the ecological system of the saline-alkali land is improved, local economic development is indirectly promoted, and the income of farmers is increased.

The invention discloses a processing process of green tea with good quality. The processing process comprises the following steps: planting tea trees, picking fresh leaves, spreading for cooling, carrying out fixation, moisturizing again, rolling and drying. According to the method disclosed by the invention, the transplanting and field planting survival rate of tea seedlings can be improved, and the tea seedling plant survival rate and the cluster survival rate are high; the motivation of tea farmers is improved and the afforestation cost is reduced; forest land management is facilitated and the economic benefits are good. Meanwhile, tea leaves processed by the processing process have good quality, and the content of tea polyphenols and caffeine is reduced; the tea leaves have a good taste and have no bitter taste.

The invention discloses a coastal saline and alkaline land rain season willow root cutting forestation method. The coastal saline and alkaline land rain season willow root cutting forestation method includes variety selection, forest land underground water level control, soil improvement, bed manufacture, plastic film mulching, forestation and management. Compared with the prior art, the coastal saline and alkaline land rain season willow root cutting forestation method has the advantages that rainfall is large and forestation land is small in saline and alkaline stress effect in a rain season, and therefore willows easily sprout and grow, and then the willows can grow to be 1m high after the rain season is finished, the forestation land can be effectively mulched through proper close planting, salt surface infiltration action of the forestation land is inhibited, the forestation in the rain season can effectively avoid influences of spring drought, the root cutting forestation in the rain season has obvious advantages for coastal beach forestation land with no fresh water irrigated, and additionally by using the root cutting forestation, cuttings are completely inserted into soil, water retaining capacity of wickers is strong, and willow forestation survival rate on the coastal saline and alkaline land is improved, and furthermore when the root cutting forestation is used, forestation material consumption is small, the root cutting wickers are quick to collect and transport, forestation cost is low, close joining of all forestation environments is facilitated, and forestation efficiency is improved.

The invention provides an afforestation drip irrigation system and an afforestation method for gobi desert regions. The afforestation drip irrigation system is applied by the aid of the afforestationmethod. The afforestation drip irrigation system comprises a head hub, a drip irrigation main pipe and drip irrigation branch pipes. The head hub, the drip irrigation main pipe and the drip irrigationbranch pipes are sequentially connected with one another, a plurality of drip irrigation capillary pipes which are arranged along tree rows are connected onto the drip irrigation branch pipes, the drip irrigation branch pipes further comprise water inlet pipes, the water inlet pipes are vertically embedded in tree pits, a pressure compensation type dripper is arranged on a certain position on each drip irrigation capillary pipe whenever the drip irrigation capillary pipe is in contact with the corresponding tree pit and is connected with a capillary pipe, the upper portions of the water inletpipes are exposed out of the ground, protective covers are arranged on the tops of the water inlet pipes with opening bottoms, capillary pipe holes are formed in the upper portions of the water inletpipes, and the capillary pipes extend into the water inlet pipes via the capillary pipe holes. The afforestation drip irrigation system and the afforestation method have the advantages that water andfertilizers can be directly delivered to the roots of trees by the water inlet pipes, accordingly, concealed drip irrigation can be implemented, evaporation from the ground can be reduced, drip irrigation water consumption can be decreased, and the survival rate of the trees can be greatly increased; breather holes are formed in the water inlet pipes, accordingly, the root systems of the trees can conveniently breathe, and the survival rate further can be increased.

The invention relates to a plant nutrient solution, and concretely relates to a nutrient solution for improving the transplanting survival rate of Chinese torreya. The nutrient solution can be sprinkled to Chinese torreya trees. The nutrient solution comprises oral glucose, compound sodium nitrophenolate, Leffingwell, potassium dihydrogen phosphate and water. The nutrient solution can rise the transplanting forestation survival rate of Chinese torreya to above 90% from normal 70%, and realizes a highest rate of 96%, and has the advantages of no dropping and good growing of transplanted Chinese torreya nursery stocks, provision of support for a large-scale forestation technology, effective breaking of the bottleneck of difficult Chinese torreya plantation, solving of the problem of low survival rate of big seedlings of Chinese torreya, reduction of loss of foresters, reduction of soil balls in big seedling transplanting, convenient transportation and construction, and great reduction of forestation cost.

The invention provides a biodegradable afforestation device and an afforestation method. The biodegradable afforestation device comprises a seedling protection film and supporting columns for supporting the seedling protection film, wherein the supporting columns are distributed around a seedling with the seedling as the center, and the peripheries of the supporting columns are sleeved with the seedling protection film. The seedling is protected by using the afforestation device including the white biodegradable plastic cylindrical film and bamboo sticks or wood sticks, a relatively stable microhabitat is provided for early-stage survival of the seedling, the protection device slowly degrades along with gradual growth and development of the seedling, manual dismantling process is omitted, and afforestation cost is saved. An organic covering is laid at the base portion of the seedling in the protection device, soil moisture evaporation is reduced, weed growth is inhibited, a soil structure is improved, and later growth and development of the seedling are promoted.

The invention provides an afforestation method for rock desert mountainous area Malania oleifera, and relates to the technical field of afforestation. The method comprises the following steps of 1, collecting mature Malania oleifera fruits, collecting seeds, performing airing, and obtaining seeds to be sown; 2, performing sand preservation on the seeds to be sown obtained in step 1 for 3-4 months,and obtaining germinated seeds; 3, sowing the germinated seeds obtained in step 2 into an afforestation land, and performing laminating, wherein the afforestation land comprises shrub wood or thick growth of grass with the canopy density being 30-40%; 4, performing emergence of the germinated seeds 20-30 d after laminating, and cutting a circular opening with the diameter being 4-5 cm in a film over seedlings. Three years after afforestation, the afforestation survival rate is 85.2%, the afforestation survival rate is 81.8%, the tree height is 2.26m, the ground diameter is 4.07 m, and the crown breadth is 1.52 m<2>. Compared with the proportion, the afforestation survival rate is increased by 4.63-5.4 times, and the afforestation survival rate is increased by 5.56-6.49.