1958results about "Afforestation" patented technology

A transplanting method of big camphor trees comprises selection of the big camphor trees, transplanting, transplanting transportation of trees, planting and planting management. Particularly, the angle of a planting sunny side cannot be deviated by over 10 degrees, root irrigation is performed by using ABT rooting powder, microorganism fertilizer, bactericide liquid chemical and the like which are used in backfill soil according to a fixed proportion, and 1-naphthylacetic acid alcohol water solution of 100-200ppm is used for irrigation after planting of the big camphor trees. The special technical processing of camphor transplanting is that 1-naphthylacetic acid auxin of 0.01-0.03% is added to used mud, the theory of a big wiping head and a big soil ball is adopted, 1-naphthylacetic acid rooting powder is added to the root portions during transplanting, leaves are picked instantly after planting, a blade surface agent is sprayed to new leaves, and originality is provided in the overwintering and antifreezing aspects. By means of the transplanting method, transplanting survival rate of the camphor trees with the tree age below 20 years is over 99%, and transplanting survival rate of the camphor trees with the tree age over 20 years is over 95%. The transplanting method of the big camphor trees can be suitable for transplanting of big trees and old trees under the conditions of other different altitudes, longitudes and latitudes, climate and the like.

The invention relates to a technology for afforestation and planting in areas with shallow water level and heavily-salted soil and solves the problems of high cost for foreign soil replacement and short duration. The technical proposal is that: the process realizes the original soil planting by building an integral isolation zone in the greening area and controlling a microcirculation system inside the isolation zone and desalting with fresh water. The process comprises the following steps: A. building an isolation zone; B. desalting with fresh water until the salt content in soil is below 0.2%; and C. planting seedlings for afforestation. The technology solves the technical problems of high cost for foreign soil replacement and short duration of afforestation and greening in coastal areas with shallow water level and heavily-salted soil; and has the advantages of overcome serious erosion of underground salt water to soil mass, good desalting effect, reduced afforestation cost, improved soil structure, low requirements for raw materials for afforestation, applicability for various seedlings, easy maintenance and management and low cost.

The invention relates to a cutting seedling raising method inside a light substrate mesh bag containers for tree species which are difficult to root. The method of the invention is characterized in that a frame-typed youth cutting orchard is established firstly; quicksets are cut on mother plant for cutting; after the foundation of the quicksets are disposed by rooting hormone, the quicksets are inserted into the light substrate mesh bag container which is internally provided with light substrates so as to prepare the cutting seedlings and to carry out the cultivation. The cutting seedling raising method of the invention can obviously improve the rooting rate and the transplanting survival rate of the tree species which are difficult to root, especially the afforestation survival under severe conditions. Furthermore, the substrate used for preparing the light substrate mesh bag container can be made from local materials, has low comprehensive cost and is easy to be generalized on production.

The invention, which belongs to the technical field of tree transplanting, discloses a method for transplanting a large cinnamomum camphora tree to land in north. According to the technical scheme, a tree is selected; root pruning and lump shrinking are carried out 2 to 3 years earlier; branch trimming is carried out after seedling lifting; and management after transport and transplanting. The method has the following beneficial effect: the survival rate is high and can reach over 90%.

The invention discloses a method for controlling stony desertification and restoring an ecosystem of a stony desertification region. A technology for conserving water and soil in the stony desertification region, a surface vegetation restoring method and a technology for establishing artificial succession of rock vegetations are involved in the method. The method is characterized by comprising the following steps of: firstly, controlling the stony desertification and conserving water and soil to prevent water and soil loss and increase soil moisture; secondly, restoring surface vegetations and restoring the ecosystem by the technology for establishing the artificial succession of the rock vegetations; and finally, forming an ecosystem of artificial biotic communities in the stony desertification region, re-establishing the ecological environment in the stony desertification region, recovering the land production capability and preventing the soil and water loss. By the method for controlling the stony desertification and restoring the ecosystem of the stony desertification region, a benign and sustainable ecosystem based on a plurality of species of plants is established, and the sunlight, heat, air, water, stones, the soil and the plants form a multi-level, multi-species, benign and sustainable operating mode, so that the use rate of water and soil resources is improved, the effects of controlling the stony desertification and establishing the ecological environment are achieved, and the economic, social and ecological benefits are good.

The invention discloses a method for conducting afforestation on saline-alkali soil. The method includes the steps of firstly, digging deep planting pits in the saline-alkali soil; secondly, paving two layers of isolating curtains at the bottom of each planting pit and the inner wall of each planting pit respectively; thirdly, arranging filtering layers between each isolation layer and the bottom of each planting pit and between each isolating layer and the inner wall of each planting pit; fourthly, preparing mixed matrix, filling the matrix into the pits and tamping down the matrix; fifthly, planting seedlings; sixthly, conducting maintenance management. According to the method for conducting afforestation on the saline-alkali soil, the difficult problems of lowering the salt content, improving the soil and conducting afforestation on the saline-alkali soil are solved. Through the measures of discharging salt and blocking salt, the salt content in the distribution range of the plant root systems is lowered, the plant root systems are promoted to absorb nutrient and water and discharge salt in a unidirectional mode, and a soil environment which is beneficial to plant growth is created. According to the method for conducting afforestation on the saline-alkali soil, the survival rate and the preserving rate of the seedlings are improved, and the method is low in cost compared with a traditional method for improving the saline-alkali soil by merely paving the salt isolating layers, replacing soil and conducting afforestation, is suitable for the saline-alkali soil afforestation and the plant cover recovery project, and can also be used in the manual construction and the machine and human coordinated construction.

A method for covering the solinized soil by the sea with greenery includes such steps as improving said salinized soil by reinforced water draining, planting saline- resistant trees, culturing the saline-resistant vegetation, bush, arbor and grass, and planting them in said improved salinized soil.

The invention discloses a desert control method of a chemical sand-fixing greening technology based on organic composite materials, and the desert control method is characterized in that hydrophilic polyurethane resin curing agent solution is sprayed on a sand or soil layer of greening objects for sowing the vegetation for forming a porous fixed sand layer. The fixed sand layer formed by the method has appropriate thickness and strength, good durability, good anti-freeze and melt properties and functions of water retention, thermal insulation, ventilation, vegetation and the like. According to the method of the invention, the stable and effective solidifying can be carried out on sand even under the specific desert environments of no abundant groundwater sources and strong wind erosion, and the purpose of vegetation greening can be also realized. The method has large-scale construction properties and good economic performances, thereby being applicable to the needs of large-scale chemical sand fixing and vegetation greening of the vast desert and realizing the plant greening function and the ecological restoration and the control of desertified land.

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 increasing the elevation of an intertidal zone to form a suitable land for mangrove forest. The method mainly includes key steps of determining a target elevation; determining land reclamation boundaries; constructing cofferdams; constructing fences; implementing earth filling; flattening filled earth; constructing artificial tidal creeks; realizing temporary fixing measures; and the like. The inventor aims to increase the elevation of the intertidal zone by the aid of engineering means, requirements of mangrove plants on hydrology, sediment and other conditions can be rapidly met, the suitable land for the mangrove forest is formed and created, accordingly, afforestation success rate is increased, coastal ecological safety and sustainable development of China are promoted, and land safety and ecological safety of coastal zones are effectively maintained.

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 discloses an artificial shaping and cultivating method of big tree, mainly comprising the following steps: selecting nursery stocks, tilling soil and dibbling, fertilizing and filling, processing soil and young plant before cultivating, fixing and cultivating the young plant, later managing or the like. On the basis of using reasonable transplanting, artifical shaping and basic managing, the pest control and root treatment are strengthened at the same time, therefore the survival rate of artificial shaped big tree is evidently increased and the later growth condition is improved with good survival state and growth effect and the required big tree grows in shorter time. The cultivation time is short and a large amount of manpower maintenance cost is saved, therefore the cost is reduced. The method is in favor of industrial production of trees of a variety of specifications and shapes required by highway afforestation, park and garden construction in shorter time.

The invention discloses a method for restoring vegetations in a water-level-fluctuating zone. The method is capable of effectively preventing and controlling water and soil loss, intercepting and absorbing harmful chemical substances in a water body, reducing eutrophication of the water body and rapidly afforesting the water-level-fluctuating zone, and has the functions of fixing soil and retaining banks. The method comprises the following steps: 1) preparing soil of a riverside slope surface in a fluctuating zone, finishing the fluctuating zone along the contour line to form a step structure, and respectively digging a cuttage ditch on various steps of the step structure; 2) using nutrient soil to cover various cuttage ditches, inserting a plurality of living branch wooden piles, and connecting the adjacent living branch wooden piles on the same step by using a rope to form a whole, wherein planting grooves are formed between two rows of living branch wooden piles on the adjacent steps; 3) sequentially filling a lower mucky soil layer, a water supply layer, an upper mucky soil layer and a nutrient soil layer into the planting grooves from bottom to top so as to form a planting layer; and 4) respectively planting submerged plants, emergent aquatic plants and water-resistant tree shrubs in various planting grooves along the step structure from bottom to top, so that a three-dimensional vegetation restoring space is formed.

The invention provides a deforming trimmer for spherical vegetation. The deforming trimmer comprises a machine rack, a vertical hydraulic rod, a transverse hydraulic rod and a trimming tool, and an object carrying platform is fixed to the tail end of the transverse hydraulic rod; the deforming trimmer is characterized in that a vertical rotating shaft is arranged on the object carrying platform, and the trimming tool is fixed to the lower end of the rotating shaft. The trimming tool is composed of multiple tool sections in connection in a hinged mode in sequence; each tool section consists ofa frame, a wheel axle, a double-belt pulley, an upper blade and a lower blade, wherein the wheel axle is arranged on the frame in a rotating mode, and the double-belt pulley is fixed to the wheel axle; the double-belt pulleys on adjacent tool sections are connected in a transmission mode through belts; the curving radian of the trimming tool is adjusted by an angle adjusting mechanism, and the belts are tensioned by a tensioning mechanism. According to the deforming trimmer, the corresponding spherical vegetation can be trimmed out based on needs, the whole trimming process is totally completed by the machine, the labor intensity of manual trimming is relieved, the working efficiency is improved, the advantages are significant, and the deforming trimmer is suitable for application and popularization.

The invention relates to a solar-energy green automatic irrigating system, which comprises solar energy battery plate, water pump, irrigating and micro irrigating system, rain collector, water feeder, fertilizer, water container, accumulator, charge controller, and automatic control system formed by single chip and sensor; the solar energy battery plate is connected to the accumulator via charge controller, to charge accumulator and control the over-charge or over-discharge of accumulator; the accumulator via automatic controller is connected to the water pump; the water inlet of water pump is connected to the water container, while water outlet is connected to the irrigating and micro irrigating system; the rain collector, water feeder, fertilizer are connected to the water container. The inventive system can save water.

The invention relates to a seed coating agent and coated seeds for desert control and aerial seeding, and a preparation method of the agent. The seeding coating agent mainly comprises an inner layer coating agent, a middle layer coating agent and an outer layer coating agent. As the coating method provided by the invention adopts a layered coating technology, not only is the mutual influence among different ingredients of the coating agent alleviated, but also the difficulty caused by the swelling and the adhesion of a water retaining agent which absorbs water in a coating process is avoided; special drying equipment is not needed after the coating is finished, so that the dependence of a traditional coating operation on the drying equipment is avoided; a repellent for birds, rabbits, mice and the like is added to the coating agent, so that the seeds are protected from being eaten while no harm is caused to the environment; and the coated seeds have a high germination rate and can take root rapidly under the action of the water retaining agent and nutrients, so that the seeds for desert control and aerial seeding are promoted to germinate and grow rapidly, and the survival rate of seedlings is remarkably improved.

The invention relates to a device and a method for improving a saline land, wherein, the device comprises an isolation layer arranged on the partial periphery of an afforestation-waiting area, and a main blind drain and an auxiliary blind drain used for draining salt and alkali and arranged above the critical water level in the afforestation-waiting area, and the water outlets of the main blind drain and the auxiliary blind drain lead to a water-collecting well, the level surface of which is lower than the blind drains. The method comprises the flowing steps: arranging the isolation layer, laying the blind drains, constructing the water-collecting well, and improving physical and chemical soil properties. The invention has the advantages that the invention can fully use various solid wastes as main materials available to improve the saline land and conduct the improvement on the saline land through the combination of physical, chemical, biological methods; the various solid wastes can be used for constructing the main blind drain, the auxiliary blind drain and the water collecting well, and controlling the water table; a tree microarea is planted, physical and chemical soil properties on a surface layer are improved, and the salt content of the soil is reduced; and indigenous plants and new plant species with the saline-alkali resistance are selected for being planted, and the forestry afforestation and the landscaping are achieved through the post-stage nursing, long-term salinity control and alkaline control measures.

The invention discloses a muddy saline soil forestation method. The method comprises the following steps: 1) digging drainage ditches (1) and building platform fields(15); 2) digging plant pits (3) for land preparation; 3) setting salt insulating layers (4) and basal discs (9) in the plant pits; 4) preparing sand loam soil; 5) filling the pits and transplanting the nursery stock; and 6) carrying out the fostering management. The method solves the problem of muddy saline soil forestation and greening. Through the measures of salt discharge and blockage, the method reduces the salt content in the range of the plant root system. The basal disc orientated rootage technology promotes the development of the root system, facilitates the nutrients and water absorption and unilateral salt discharge of the root system, and creates a soil environment benefiting the growth of the plant. The forestation method improves the survival rate and preservation rate of the nursery stock, and has lower cost than that of pure alien soil forestation. The method is suitable for the forestation and greening and vegetation restoration projects in the muddy saline alkali land, and can be applied to the artificial construction mixed with manual work and mechanical work.

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 provides a drip irrigation greening forestation method for saline-alkali land in a coastal area, which comprises the following steps of: A, paving a filtering layer, namely, paving the filtering layer at a position 40 to 80cm distance below the ground and filling original soil on the filtering layer; B, leveling the land and ridging when shrubs and arbors are planted; C, selecting and planting trees or grass seeds; D, arranging a drip irrigation tape, namely, arranging the single drip irrigation tape in the middle of tree planting ridge, or paving the drip irrigation tape at intervals of 30 to 100cm on a lawn; and E, irrigating, namely, irrigating for the first time once planting on the same day and then irrigating according to the actual moisture condition of the soil, wherein the irrigation quantity is more than four times the daily irrigation quantity. The invention adopts a method combining ground drip irrigation with filtering layer pavement so as to form a desalting region in a plant root region and ensure the regular growth of plants. The method solves the problem that the soil structure is damaged after the saline-alkali land with high content of sodium ions is washed, so the method can keep the good soil structure of the soil and provide a good growing environment for the plants.

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.

The invention relates to a potting technology for mangrove forest seedling cultivation, which is characterized by comprising the steps of 1) selecting a seedling cultivation field, wherein muddy inning intertidal zones with weak storm, low salinity and fresh water supply are selected; 2) cultivating the seedlings in a nutrition bag, wherein a seedling cultivation matrix is filled in the nutrition bag, and direct seedling cultivation with the nutrition bag is adopted for vivipary mangrove forest plants; 3) transferring the bagged seedlings into pots, wherein plantlet grows up after the seedling is cultivated for 0.5-1 year in bags according to the method of step 2, and then the plantlet is transplanted to a plastic seedling cultivation pot for seedling cultivation; 4) cultivating the potted seedling, wherein the seedling cultivation is carried out after the plantlet is transplanted into the plastic cultivation pot and arranged in a nursery garden, and water and fertilizer management, reshaping and trimming as well as pest control are strengthened in the seeding cultivation process; and 5) outplanting of the seedling, wherein the mangrove forest seedling is cultivated after the plantlet transplanted in step 4) grow for 1-2 years in the plastic seedling cultivation pot. At the time, the seedlings can be transferred out of the nursery garden to be used for recovery of the mangrove forest of the inshore intertidal zone and greening of the coastal intertidal zone. The seedlings cultivated by the technology disclosed by the invention has the characteristics of being high in degree of lignification of the stem, complete and dense in roots and the like; and compared with plantlets of the mangrove forest, the seedlings have stronger adaptive capacity to hard intertidal zones and severe growing environments.

The invention discloses a full-automatic tree planting robot suitable for planting of single row. The full-automatic tree planting robot comprises a vehicle frame, walking wheels, a water storage cabinet, a sapling mechanism, a digging mechanism, a soil covering mechanism and a controller, wherein the walking wheels are arranged under the vehicle frame; the water storage cabinet is arranged on thevehicle frame; the sapling mechanism is used for putting a sapling into a tree pit; the digging mechanism is used for digging the tree pit; the soil covering mechanism is arranged under the vehicle frame; the controller is used for controlling the robot to plant a tree; the digging mechanism is used for digging the tree pit, a manipulator is used for placing the sapling in a sapling storage cabinet onto a conveying belt, a sapling telescopic rod is used for pushing the sapling on the conveying belt into the tree pit, the soil covering mechanism is used for covering soil into the tree pit withthe sapling, an electromagnetic valve is controlled to water the sapling, and the controller is adopted, so as to realize the full-automatic tree planting. Compared with the prior art, the full-automatic tree planting robot has the advantages that the intelligence degree is high, the structure is simple, the tree planting efficiency is high, and the system is stable in running.

The invention discloses a high-efficiency tea-oil tree forest building method and relates to the technical field of economic forest plantation. The high-efficiency tea-oil tree forest building method comprises the following steps of: selecting and trimming built forest, performing soil improvement, performing soil culture and building the tea-oil tree forest. The high-efficiency tea-oil tree forest building method has the characteristics of improving the soil performance and the soil fertility and rapidly building high-quality and high-yield tea-oil tree forest, is suitable for building the tea-oil tree forest in all tea-oil tree plantation areas, and can be used for rapidly building other economic forests suitable for acid soil plantation.

The invention discloses an artificial large-cave soil preparation tea-oil tree forest planting and cave expansion associated method in a mountainous area, and relates to the technical field of tea-oil tree planting, for overcoming the defects of an conventional large-cave soil preparation tea-oil tree forest planting method that the tea-oil trees grow worse and worse and the cultivation cost is higher and higher because in the mountainous area. The method comprises steps of selecting a forest land, designing, excavating artificial large caves, widening strips twice, planting, and cultivating and managing. Due to adoption of the cave expansion associated method, great convenience is brought to the cultivation management, the growth of tea-oil plants can be promoted, the output of fresh fruits is increased, and the cultivation, harvesting and management cost is lowered.

The present invention discloses an integration method of large-scale coastal newly reclaimed beach agricultural land ecologicalization exploitation, and belongs to the field of agricultural land ecological exploitation. The integration method mainly comprises four links including the space planning technology, the land consolidation technology, the soil improvement technology and the ecological management and protection technology of coastal beach agricultural land exploitation, and the four links commonly form the comprehensive control integration technology (system) of coastal large-scale newly reclaimed beach agricultural land ecologicalization exploitation. By adoption of the integration technology, the coastal soil salinization problem can be expected to be radically solved in 3-5 years. On the basis of coastal beach space planning and land consolidation, the target of coastal saline land improvement can be rapidly achieved by utilization of the modes including natural desalination, irrigation and loosening desalination and green manure back to field, and requirements of agricultural land exploitation are satisfied.

The invention discloses an efficient sonneratia apetala seedling cultivation and forestation method which is used for solving the problem that the mangrove forest plant sonneratia apetala is low in germination rate and the cultivation problems of seedlings at early stage, so as to achieve the aim of forestation. The method comprises the following steps including seed treatment, seedling cultivation and forestation. The method provided by the invention has the advantage that a two-stage seedling cultivation method is used, namely, at the first stage, seeds are sowed in seedbeds to cultivate small seedlings; and at the second stage, on the basis of the first stage, the small seedlings on the seedbeds are transplanted into nutrition bags to continuously cultivate the small seedlings into big seedlings. Through the two-stage seedling cultivation method, the cultivated nursery stocks are stronger, higher in survival rate, capable of avoiding the defects of bad growth vigor and more plant diseases and insect pests when seedbeds are singly used for seedling cultivation, and capable of avoiding the defect of tedious process when nutrition bags are singly used for seedling cultivation. Through the method, the germination rate can be improved to 95-98% and the survival rate of the seedlings is up to 85%.

The invention discloses a coastal saline-alkali soil terrace type afforesting method for improvement of dredger fill. The coastal saline-alkali soil terrace type afforesting method for improvement of the dredger fill comprises water seepage ditches, foundation terrain dredger fill, straw curtains, geotechnical cloth, improved planting soil, local models and the like, wherein square seepage ditches of the water seepage ditches are longitudinally excavated in the lowest position of the foundation terrain dredger fill, particle-size ballast stones are filled into the square seepage ditches, the distance between the foundation terrain dredger fill and the ground is 1-1.5m, the gradient of the foundation terrain dredger fill is 15 degrees to 30 degrees, straw is distributed on the foundation terrain dredger fill, the geotechnical cloth is laid on the straw curtains, and then the improved planting soil is laid on the geotechnical cloth. Due to the fact that the coastal saline-alkali soil terrace type afforesting method for improvement of the dredger fill is combined with the terrace type shape, the coastal saline-alkali soil terrace type afforesting method for improvement of the dredger fill is beneficial to retaining rainwater, enables salinity to be effectively leached and reduced, is beneficial to fertilizer and soil conservation, and enables the survival rate of landscape plants to be more than 90%, the waste is effectively utilized, natural resources are protected, and afforesting cost is reduced by more than 50%.

The invention relates to a method for improving the survival rate of haloxylon seedlings, which belongs to the field of forestry ecological plant, is specifically used for protecting haloxylon seedlings by using a protective net cover in a process of massively restoring and building a haloxylon forest in a desert or semi-desert region, obviously improves the survival rate of the haloxylon seedlings and prevents the phenomenon of 'summer dormancy' of the haloxylon seedlings. The protective net cover is divided into two types, namely a directly sown seedling or naturally growing seedling protective net cover and a transplanted seedling protective net cover. By the method, the haloxylon seedlings can be effectively prevented from being harmed or threatened by the supracrustal high temperature, blown sand, animals and the like, supracrustal water evaporation can be locally reduced and vegetation coverage can be increased, so that the survival rate of the haloxylon seedlings is improved by over 30 percent. The operability is strong; the efficiency is high; and the method is simple and has very important significance for massively restoring and building the haloxylon forests in desert or semi-desert regions in drought regions of China, even African-Asian mainland.