164results about How to "Increase vegetation coverage" patented technology

The invention discloses a method for restoring vegetation on barren mountains and sloping fields in arid and semi-arid regions. The method comprises the following steps of: building a horizontal ditch in an arid and semi-arid barren mountain / sloping field region along a contour line; building semi-arc-shaped water collecting ridges in the horizontal ditch in an earth furrow spacing way, wherein a ditch is formed in the two water collecting ridges and is taken as a seedling planting region; and planting arid and semi-arid region greening trees in a seedling planting region and covering a covering layer. The technical scheme of the invention is suitable for arid and semi-arid regions, and has the advantages of easiness for operating, low cost, high wood survival rate, quick vegetation growth and good water and soil holding effect.

The invention discloses an organic recycling agriculture production system with high efficiency, which uses food obtained from planted crops for feeding livestock, manure produced by which is fermented so as to produce biogas, biogas residue and biogas slurry, wherein, the biogas can be used as clean energy, while the biogas residue and biogas slurry are applied to cultivated lands or grass lands; the planted forage and crop stalks can be used for raising cattle or earthworm after grinded together with cattle manure; the earthworm can be extracted to produce plant growth enhancer, protein feed and biologic products; the earthworm manure can be used as highly effective organic fertilizer to be applied to farm lands or grasslands. The organic recycling agriculture production system of the invention abides by the theory of agriculture circular economy, utilizes nature resource fully and reasonably, promotes resource regeneration, forms virtuous circle of multi-grade utilization of material and energy, and thus is a modern agriculture technique with high quality, high yielding, high efficiency, low consumption and environment protection as well.

The invention discloses an ecological canal for preventing and controlling agricultural area source pollution, which is realized by the following steps: A, constructing an artificial canal for collecting agricultural sewage and farmland surface runoff in a watershed, wherein the canal comprises a sewage runoff inlet and a main canal; B, making the width of the artificial canal between 60 and 240 cm, the depth between 40 and 70 cm, and the length unlimited; C, setting the shape of the canal according to the landform of the watershed; D, setting the sewage inlet of the canal according to the water volume of the sewage and the surface runoff rate in the watershed; and E, making the inlet a trapezoidal open inlet, arranging a physical barrier, a small bio-ball and a sedimentation basin at the inlet, wherein the physical barrier comprises a coarse screen and a fine screen; the two side walls of the main canal are embedded with large bio-balls; emergent plants, floating leaf plants and submerged plants are planted in the canal; and epiphytic algae and floating algae are inoculated in the sewage. The ecological canal for preventing and controlling the agricultural area source pollution is suitable for stopping, degrading, absorbing and utilizing water pollutants in watersheds of mountain region and hill farming areas.

The invention discloses a method for inter-planting forage grass in orchards at a karst rock desertification region, in particular a method for inter-planting leguminous forage grass and gramineous forage grass below fruit trees in the orchards, wherein the mixing weight ratio of the leguminous forage grass to the gramineous forage grass is (5-7):(3-5), and the seeding rate is 1.5-2.0 kg / mu. According to the method, the leguminous forage grass and the gramineous forage grass are selected and sowed in a mixed way according to the characteristics of high yield and low crude protein content of the gramineous forage grass and high crude protein content of the leguminous forage grass, so that the yield and the quality of the forage grass are improved, and the palatability of the forage grass and the absorption of livestock to the nutrients of the forage grass are enhanced; by performing mixed sowing on the leguminous forage grass and the gramineous forage grass according to a weight ratio of (5-7):(3-5) under fruit trees, the coverage ratio of land vegetation of the orchards is increased and water and soil loss is greatly reduced; and meanwhile, the soil fertility of the orchards can also be increased, the environment of the orchards is improved, the productivity of land is improved, and the aims of increasing the yield of fruit trees and the yield of the forage grass are fulfilled.

The invention relates to a quick regenerating method for vegetation of returning farmland to grassland zone in extremely cold areas, which comprises the following steps of: (1) mixing and seeding annual pasture oat and perennial pasture on the farmland returning to grassland zone, and building an artificial pasture integrating mowing and grass seed harvesting functions; (2) ploughing and raking the artificial pasture; (3) sowing the seeds and applying base fertilizer; and (4) mowing the oat forage grass in the first year and harvesting the grass seeds and mowing the perennial pasture in the second year or later after covering and compacting the grass seeds in the step (3). The method utilizes the annual oat and perennial pasture to form different biotypes of pasture mixing and seeding community, so that the weed spreading can be obviously suppressed, the soil humidity and air humidity are obviously improved, the evaporation capacity and water loss and soil erosion intensity are reduced, therefore, the soil exposure time is short after regeneration of the grassland zone, the vegetation covering is quick, the water retention and preservation of soil moisture effect is obvious, and the ecological and economic benefits are remarkable.

The invention discloses an economical and quick method for planting salinized soil lawn, and relates to the field of the treatment of salinized soil. The method comprises the following steps of: (1) tidying the salinized soil; (2) building a drainage canal; (3) applying organic fertilizer, silver sand and base fertilizer; (4) building ridges, and desalting in an elution way; (5) selecting the grass variety; (6) building and planting a grass blanket; (7) transplanting the grass blanket; and (8) managing the cultivation. According to the method, the structure of the salinized soil can be effectively improved, the naked surface of the salinized soil can be covered, the evaporation of water on the surface of the ground can be reduced, and the salt content of surface soil can be reduced; the method is low in planting cost, the salinized soil can be comprehensively used in large area, and the structure of the plant of the salinized soil can be adjusted; and the plant cover area of the salinized soil can be enlarged, and the ecological environment can be protected and improved.

The invention relates to the field of cut slope protection construction, in particular to a fast construction method of rock slope protection. The method includes the steps of firstly, cleaning and leveling a slope surface; secondly, mounting a vegetation board; thirdly, paving a steel wire mesh; fourthly, spraying artificial soil; fifthly, spraying seedling substrate; sixthly, covering a protecting layer; seventhly, maintenance and management; wherein the seedling substrate is mixed by Lespedeza seeds, Magnolia multiflora seeds, crotalaria mucronata seeds, Robinia pseudoacacia seeds, amorpha fruticosa seeds and artificial soil. The method is fast in construction, vegetation can be restored rapidly, species diversity and natural succession can be formed in a short term, and natural environments can be beautified. Trees and shrubs are developed in roots and high in slope protection capability, a stable protection layer with certain strength can be formed on the slope surface in a short term, water and soil loss can be prevented, and slope stability can be guaranteed.

The invention discloses a desertification soil improver as well as a preparation method and application thereof. The desertification soil improver disclosed by the invention is prepared from the following substances in parts by weight: 20-40 parts of bentonite, 50-70 parts of straw, 0.5-1.5 parts of urea, 0.2 part of a microbial agent and 8-9 parts of a vitamin B6 solution. On the basis that the straw and the bentonite are adopted as main raw materials, the vitamin B6, the urea and the microbial agent are compounded and processed into the granulized soil improver, granular structures of desertification soil are increased, soil can be fertilized, the water and fertilizer retention capability of the soil can be improved, in addition, plant growth can be promoted, vegetational cover of the desertification soil is improved, convenience can be brought to production and transportation, and effects of efficient utilization of agricultural wastes and desertification soil improvement and treatment can be achieved.

The invention discloses a rebuilding material for a high and cold pasturing area extremely deteriorated meadow. Calculated by the weight used in each mu, the formula of the rebuilding material is that 2.5kg elymus nutans with purity larger than 95%, 1.5kg elymus sibiricus with the purity larger than 95%, 1kg cold area bluegrass with the purity larger than 95%, 500kg cattle manure and sheep manure, 20kg calcium superphosphate and 20kg urea. The rebuilding material for the high and cold pasturing area extremely deteriorated meadow has the advantages that the formula and a method of the rebuilding material are offered, compared with other similar inventions, seed resources input is high, continuity and protective property of seeding are guaranteed, a community structure is reasonable and high in stability after vegetation is built, manure is sufficient, weed generation can be controlled in a short time, seeds and the manure can be kept in soil stably after being spread, and use of the urea for twice guarantees that sufficient nitrogenous manure is offered in a grass growing season.

The invention provides a method for restoring desertificated lands by the aid of charcoal. The method includes adding the charcoal with the particle size smaller than or equal to 2mm into desertificated soil according to the weight percentage ranging from 1% to 2%; planting leguminous plants in the desertificated soil. The method has the advantages that physical and chemical properties of the desertificated soil can be quickly improved by the charcoal, organic carbon and nitrogen contents of the soil can be increased, the water and fertilizer retention capacity of the soil can be improved, and nitrogen contents of the leguminous plants can be increased; the method is combined with an effect of returning the leguminous plants to fields, so that input of water and fertilizers can be saved, and vegetation can be quickly and effectively restored.

The invention relates to an arrangement method of an ecological gabion chamber revetment type, and belongs to a revetment structure type in river training works. A stepped sandstone cushion layer is laid on the revetment of a river; a sinuous ecological gabion chamber is arranged on the stepped sandstone cushion layer; and plants are planted in the sinuous ecological gabion chamber. The arrangement method has the advantages of novel structure, reliable operation, wide application range, capabilities of improving the engineering safety and favorably improving water eco-environments of rivers and lakes and great application prospect.

The invention relates to a method for rebuilding a gangue dump close-to-nature ecological system and belongs to the filed of ecological restoration. The method includes three stages: the first stage lasting for 3-5 months includes: fast rebuilding an ecological system mainly containing herbaceous plants to allow the earth surface vegetation coverage to be more than 90%; the second stage lasting for 3-5 years includes: accelerating the conversion of the ecological system mainly containing herbaceous plants into the ecological system mainly containing shrubs through artificial interference; the third stage lasting 3-5 years includes: totally depending on natural succession to allow the rebuilt ecological system to be in good circulation, form a complete food chain as predators occur, and enter the self-updating state. The method is mainly applicable to ecological restoration after coal gangue dump treatment and has the advantages that the plant varieties are reasonably configured during plant restoration, animal and artificial actions are introduced, and the systematic gangue dump close-to-nature ecological system rebuilding is achieved.

The present invention belongs to saline and alkaline land reconstruction, and relates to the ecological engineering method of fast constructing vegetation in bare saline and alkaline land. The method includes timely constructing ridges, timely harrowing, rotary tillage, seeding perennial pasture and other processes. The present invention makes it possible to fast grow annual plant in the bare land and utilize the annual plant matter in improving the physical and chemical properties of the soil surface layer so as to grow perennial pasture. The present invention can increase grassland coverage fast, reduce harm of the bare saline and alkaline land on nearby farm field and grassland, improve ecological environment and utilize the saline and alkaline land to provide pasture.

The invention relates to the field of ecological system remediation, and discloses a grass-moss-alga combined remediation technology for copper tailings. By means of holistic study on a tailing remediation system, a grass-moss-alga combined remediation system is adopted, and copper-resistance experiments and culture are carried out on algae, moss and pasture plants in the system, so that the copper endurance capacity of the remediation system is greatly improved. Through the reasonably-screened grass-moss-alga combined remediation system, the vegetation coverage of tailing abandoning land is greatly improved, adverse environmental influence of the water and soil loss, strong wind dust raising and the like can be avoided, and fast stabilization of the tailing ground surface is promoted; and the four-season vegetation coverage reaches 95% or above, biological species in the combined remediation system can be obtained anywhere, remediation cost is low, and the remediation technology is simple and feasible.

The invention discloses a high-steep bare rock slope surface vegetation greening system and a construction method thereof. The system comprises a roughening layer, a transition combination layer, an artificial soil layer, a plant seed layer and a protection layer which are sequentially arranged from bottom to top. By close attachment and combination of the toughening layer, the transition combination layer, the artificial soil layer and the protection layer, a complete vegetation greening system is formed, supply of water and nutrients of a nutrient layer and a plant growth layer suitable fordevelopment of plant root systems is established, so that rock surfaces are firm, the life of the high-steep bare rock slope surface vegetation greening system is prolonged, after several years, plantroot systems are firmly and densely anchored in all layers, and dual functions of greening and slope protection are realized; the problem about the life of the vegetation greening system is solved, rare rock surfaces and artificial soil are combined into a whole by pervious concrete intermediates, slipping of the artificial soil layer from the vegetation greening layer is prevented, and the service life of the vegetation greening system is greatly prolonged.

The invention relates to an arid desert region flood plain tamarix chinensis recovery method. According to the method, at a flood plain which is provided with or close to a tamarix chinensis seed production stand, a flood overflowing area is selected as a tamarix chinensis renewed place. Through the utilization of the characteristic of synchrony of tamarix chinensis seed maturation and flood, conventional flood plain tamarix chinensis renewed recovery or auxiliary manual seed sowing is carried out, a simple flood-control dam is set up next year in the direction of a river channel, the flood-control dam is used for stopping flood out of the seedling renewing area the flood plain tamarix chinensis, so that the tamarix chinensis seedlings can not be washed and soaked by the flood, the seedlings grow normally, a large area of tamarix chinensis community is recovered, and river banks are protected. The method also is suitable for vegetation restoration and reconstruction, ecological environment improvement, desertification prevention and control and other aspects which are carried out taking the tamarix chinensis as constructive species on flood plains which have or are close to a tamarix chinensis seed production stand. The result of a test in the Hotan prefecture shows that through the method, the tamarix chinensis can be recovered up to 2.4-2.6 plants per square meter, and compared with other methods, the rate of increase is 180-210%.

The invention relates to a natural repairing and recovering method of deteriorated grassland in the loess plateau, and belongs to the technical field of recovering methods of the deteriorated grassland. The method is based on forbidden recovering and supplemented by the manual control and manual interference measures, namely cement stand columns, chain line fences and other forbidden facilities are arranged to completely forbid the original areas where grassland vegetation is destroyed and degraded seriously or agriculture and forestry can not be operated and forage grass can grow, human and animal interference can be controlled strictly, and chance and time for living and multiplying of grassland are given. The method can improve the converge degree of deteriorated grassland vegetation by 50-75% and the biomass of the grassland vegetation by 50-80%, the diversity of species is richer and richer, the number of grassland vegetation and species is increased to 313 from 68 before the forbidding, the grassland quality is improved, and in the plant structure of the recovered grassland community, the grass family and feverfew plants account for 26.8%, the beam or pea family plants account for 8.3%, and the other plants accounting for 64.9% are included in the 33 families. The ecological economy and social benefits of the grassland are significant, and the grassland becomes the demonstration model of the loess plateau.

The invention provides a method for recovering vegetation through micropore thin films. The method comprises the operation steps that (1) a field is cleaned; (2) the corresponding micropore thin film is laid; (3) earthwork standard rooms are laid and fixed; (4) a nutrition matrix is poured; (5) plant seeds are sowed; (6) the corresponding micropore thin film is laid; (7) fixation is carried out; (8) watering, management and maintenance are carried out. The construction technology is simple, the later stage management and maintenance are convenient, continuous and effective nutrients can be provided for the growth of plants, soil moisture evaporation can be effectively restrained, the soil air permeability can be improved, the germination rate of the plant seeds can be increased, and finally the purposes of effective greening, soil improving and ecological environment improving are achieved. The method can be widely applied to recovery of vegetation of barren mountains, engineering abandon places, cities and the like.

The invention relates to a species assembly method for rapidly improving the vegetation coverage degree of an extreme arid region. The method is implemented through soil preparation, plant species configuration mode selection, arbor and shrub planting mode selection, herb planting mode selection and irrigation management mode selection. According to the method, by selecting reasonable configuringthe planting modes and irrigation modes among arbors, shrubs and herb, an arbor, shrub and herb structure plant community is created on desertified land, wherein the average electrical conductivity from the soil surface layer to the soil layer with the depth of 50 cm is 1.13-11.16 ms / cm, and the average water content is 4.77-12.89%; the survival rate of the arbors and the shrubs is increased, andthe vegetation coverage degree is quickly increased to 60% or above; meanwhile, the aims of solidifying desertified soil, reducing the soil salt content and increasing the soil water content are achieved, and it is ensured that large-area vegetation coverage can be quickly achieved on the desertified land in the extreme arid region. The problems that land desertification is severe in an arid desert area, secondary salinization is difficult to improve, and the survival rate of plants on poor soil is low are solved.

The invention discloses a hill collapsing and garden making water and soil conservation method. The method includes steps of firstly, constructing a collapsed slope formed after hill collapsing into horizontal steps by a soil shifter; secondly, constructing ridging slopes with gentle gradients on the outer sides of the steps and manually punning the ridging slopes; thirdly, constructing high ridges on the edges of the horizontal steps on the inner sides of the ridging slopes; and fourthly, planting economic plants in the horizontal steps and finishing a hill collapsing comprehensive treatment process. The method effectively eliminates and reduces hill collapse phenomena caused by gravitational erosion, overcomes the shortcoming that a traditional hill collapsing slope is exposed, is obvious in water and soil conservation effect and abundant in hill collapsing slope landscape ecology, promotes development of hill collapsing ecological economy, has the advantages of high practicality, simplicity and obvious environmental protection effect, and is particularly suitable to be popularized and used in hill collapsing comprehensive treatment processes of vast red earth hilly areas.

The invention discloses an ecological slope protection structure favorable for growth and reproduction of plants and a using method of the ecological slope protection structure. The ecological slope protection structure comprises protection components arranged on a slope in an arrayed manner. The protection components comprise seedling nursing pots. Hollow cylinders are arranged at the upper parts of the seedling nursing pots. Openings are formed in the tops of the hollow cylinders. The upper parts of the seedling nursing pots come out from the surface of the slope. Hollow cones are arranged at the lower parts of the seedling nursing pots. The lower parts of the seedling nursing pots are embedded in the slope. The upper parts and the lower parts of the seedling nursing pots are made integrally. Separating layers with holes are arranged between the upper parts and the lower parts in the slope surface direction. Early-stage growth of shrubs is prompted in the drought microenvironment of the slope, so that the shrubs exert the effects of soil reinforcement and slope protection effectively, the catchment time is prolonged, rainwater is stored, vegetational communities on the slope are established and restored, the conditions that the slope is easy to lose, the vegetation site conditions are bad are improved, the vegetation coverage is improved, and the stability of the slope is enhanced.

The invention discloses a saline and alkaline land improvement method. The improvement method comprises the following steps: crushing plant straw to prepare plant straw powder, then, scattering the plant straw powder into saline and alkaline land, and carrying deep ploughing and turning; applying a mixture consisting of soybean meal, furfural residues, activated biochar powder, a microbial agent,inorganic fertilizer, natural zeolite powder, mineral-sourced humic acid and modified calcium alginate aerogel to the surface layer of the saline and alkaline land, and using a rotary cultivator for rotary cultivation and mixing; flattening the soil surface layer of the saline and alkaline land, uniformly sowing alfalfa seeds on the flattened saline and alkaline land, then, performing earthing up,and controlling the sowing depth at 1-2 cm; during harvesting, keeping the stubble height of alfalfa at 5.5-7.5 cm; carrying out deep ploughing, turning and burying on the saline and alkaline land toturn and bury the alfalfa stubbles in the soil; and then, planting wheat or corn crops. The method can effectively reduce the soil alkalization degree and salt content, and the physiochemical properties of the soil are effectively improved.

The invention relates to a plant matching mode suitable for vegetation recovery of a permafrost region project slash. The plant matching mode comprises the following steps: (1) mixing roegneria thoroldiana, snowfox crested wheatgrass, leymus and poa crymophila keng at the weight ratio of 2 to 2 to 2 to 3, so as to obtain a mixture applicable to an project slash of an alpine grassland region which takes ecological recovery as an aim; (2) mixing the roegneria thoroldiana, elymus nutans, puccinellia tenuiflora and puccinellia distans parl at the weight ratio of 3 to 1 to 2 to 2, so as to obtain a mixture applicable to the project slash of the alpine grassland region which takes the ecological recovery as the aim; and (3) mixing the elymus nutans, poa pratensis cv.Qinghai, the poa crymophila keng and festuca sinensis at the weight ratio of 3 to 2 to 2 to 1, so as to obtain a mixture applicable to a project slash of an alpine meadow which takes the ecological recovery as the aim. The plant matching mode provided by the invention is suitable for the plant matching mode of recovered series of a permafrost region, has extensionality and can be applied to plant recovery and reconstruction of project slashes with different types.

The invention discloses a flexible ecological bank protection structure and a construction method thereof. The flexible ecological bank protection structure comprises a bank slope toe protective structure and a bank slope surface protective structure; the bank slope toe protective structure comprises a log-willow branch anchoring cage, the log-willow branch anchoring cage is weaved from log anchoring piles, cuttage willow branch anchoring piles and fresh wickers, the anchoring cage is filled with gravel and sandy loam soil, and the air face of the anchoring cage fits backfill sandy loam soil layers; the bank slope surface protective structure is composed of the fresh wickers and the slope surface sandy loam soil layers, the fresh wickers uniformly are paved on the bank slope surface, the thick ends of the fresh wickers are inserted into the sandy loam soil layers adjacent to the air face of the anchoring cage, and the slope surface sandy loam soil layers refer to the backfill coveringon the surface of the wickers. According to the flexible ecological bank protection structure and the construction method thereof, the collapse of the bank slope can be prevented, corrosive materialscan provide nutrients for plant growth, the formed root systems improve the stability of the bank slope, local materials can be taken, the service life is long, the vegetation coverage and shielding water areas of the bank slope are improved, habitat space is provided for animals, and the ecological and landscape benefits in the region are improved.

The invention discloses a method for improving the Chinese wild rye biomass and seed yield of the saline-alkali soil, and relates to a method for improving the saline-alkali soil plant yield. The method for improving the Chinese wild rye biomass and seed yield of the saline-alkali soil aims to solve the technical problem of small Chinese wild rye biomass and seed yield of the traditional saline-alkali soil. The method for improving the Chinese wild rye biomass and seed yield of the saline-alkali soil comprises the following steps of: 1) burning and resuming growth; 2) adding nitrogen; 3) watering grassland; 4) collecting seeds; and 5) harvesting pastures. After the nitrogen is added, the Chinese wild rye is quickly accelerated to grow, the population height of the Chinese wild rye is improved by 33%, the population density is increased by more than two times, the dry Chinese wild rye yield is improved to 4.0-8.8 tons per hectare, and the yield is averagely increased by more than three times, the ear setting percentage is improved by 50.4-151.7%, and the seed yield is improved by more than 7.3 times. Meanwhile, the method has the characteristics that the grassland soil salinity is lowered, the soil fertility is improved, the vegetation coverage is improved, the grassland degeneration is inhibited, and the regional ecological environment is improved. The method is suitable for managing and maintaining the moderate and severe salinization Chinese wild rye grassland in the west part of Songnen plain.

The invention relates to a plant planting method for a boulder beach. The method at least includes the following steps that the species to be planted is selected; a planting season is selected; a vegetation restoration position is determined; soil preparation is carried out; planting is carried out; later maintenance is carried out. The method has the advantages that the species quickly roots through chemotropism of a root system, and roots firmly grasp a gravel and sand mixture under the roots, so that the ground holding performance of a plant is high, and continuous vegetation restoration is achieved; the structure of a planting hole is changed in the depth direction through excavation and landfill of the planting hole, gravel on the surface of the planting hole is the same as that of the original earth surface after landfill, it is avoided that turning causes upward moving of particulates in the excavation process, and the soil conservation function is extremely high; a U-type stone ridge protective band is arranged on the outer side of the planting hole to reduce impact on vegetations when flood peaks come and can intercept part of sand when water recedes, and the functions of vegetation protecting and deposition promotion promotion are achieved; according to the planting method, the proper local species suitable for growth is selected, measures are adjusted to local conditions, cost is low, and the vegetation coverage degree of a boulder beach area can be quickly increased.

The invention discloses a plant restoration method for a tailings ponds. The plant restoration method includes: 1), planting cattail, commelina and ciliate desert-grass to the tailings ponds by adopting an interplanting manner; 2), sowing moss in areas without clear water within the planting area; 3), planting duckweed in planting area with clear water; 4), harvesting cattail, commelina and ciliate desert-grass with harmless treatment. With the method, the content of heavy metal in the tailings ponds can be effectively reduced, the service life of the tailings ponds is prolonged, and the vegetation coverage of retired tailings ponds can be improved.

The invention discloses a vegetation ecological concrete pressing plate type slope protection structure and a construction method. Grooves are formed in the side walls of two adjacent concrete plates on a vertical line; a pressing block is inserted in a rectangular hole consisting of two opposite grooves; the pressing block penetrates through a pressing block and a geotechnical cloth layer through multiple pins to connect with a soil layer; the pins are positioned in through holes formed in the soil layer; a first pressing rod penetrates through a through hole in the same one inclined line to reach the external of the soil layer; an arc groove matched with a cross bar is formed in the upper end of a piston rod; the right side wall of the piston rod is connected with a rack; the rack is engaged with a gear; the left side of the piston rod is positioned above a mounting plate, and is hinged with a hinge rod; the other end of the hinge rod is hinged with two second pressing rods; and the other ends of the second pressing rods are connected with the lower end of a concrete layer. The structure has such characteristics as simple structure, stable structure, high soil reinforcing capacity and good slope protecting effect, and is higher in practicability.

The invention discloses a contour planting ecological management method and a structural body thereof in a medium-steep soil slope drawdown area. The method comprises the steps that the openness of a medium-steep soil slope ecological system and the basement stability of an earth surface are improved through an open-type reinforced concrete overall frame structure; the vegetation coverage and soil fertility of the drawdown area are improved through a contour planting plane surface greening technology and an earthwork standard room vertical greening technology; and biological diversity and stratification of landscapes in the drawdown area are improved through the arrangement of arbor-bush-grass-vine, bush-grass-vine and grass-vine plants suitable to drawdown areas in different high-level zones. The structural body is an open-type reinforced concrete overall frame and is composed of a plurality of structural single bodies. According to the contour planting ecological management method and the structural body thereof, a traditional concrete slope protection technology and a modern ecological slope protection technology are combined, and the contour planting plane surface greening technology and the earthwork standard room vertical greening technology are combined, so that biological control measures and engineering measures are in high unity, system stability and openness are in high unity, and the vegetation coverage and stratification of landscapes are in high unity.

The invention discloses a high-steep slope plant cultivation method. 5-10cm thick ecological concrete is cast on a high-steep slope surface and prepared by the following steps: mixing and stirring gravels, cement, silica micro-powder or coal ash, water reducers, water, turfy soil and diammonium hydrogen phosphate according to the weight ratio of (1400-1800):(200-350):(20-50):(2-6):(40-90):(3-20):(0.5-5); laying grass knot nets on the slope surface, holding iron wires into U shapes, fixing the grass knot nets onto the ecological concrete, fixing plant seeds onto the ecological concrete by the iron wires, supplementing water and covering the slope surface with non-woven fabrics; removing the non-woven fabrics after germination, and applying fertilizers once every 5-7 days. Slope soil can be effectively fixed, ecological environments are improved, harm to plant roots and stems at the growth stage caused by rain wash can be effectively prevented, plant cultivation success rate is greatly increased, the vegetation coverage rate of a slope is increased, and desertification and water and soil loss can be prevented.