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39 results about "Pioneer species" patented technology
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The Pioneer species are hardy species which are the first to colonize barren environments or previously biodiverse steady-state ecosystems that have been disrupted, such as by fire. Some lichens grow on rocks without soil, so may be among the first of life forms, and break down the rocks into soil for plants. Since some uncolonized land may have thin, poor quality soils with few nutrients, pioneer species are often hardy plants with adaptations such as long roots, root nodes containing nitrogen-fixing bacteria, and leaves that employ transpiration. Note that they are often photosynthetic plants, as no other source of energy (such as other species) except light energy is often available in the early stages of succession, thus making it less likely for a pioneer species to be non-photosynthetic. The plants that are often pioneer species also tend to be wind-pollinated rather than insect-pollinated, as insects are unlikely to be present in the usually barren conditions in which pioneer species grow; however, pioneer species tend to reproduce asexually altogether, as the extreme or barren conditions present make it more favourable to reproduce asexually in order to increase reproductive success rather than invest energy into sexual reproduction. Pioneer species will die creating plant litter, and break down as "leaf mold" after some time, making new soil for secondary succession (see below), and nutrients for small fish and aquatic plants in adjacent bodies of water.
Method for controlling spartina alterniflora instruction with non-petal sonneratia and recovering mangrove forest ecological
InactiveCN101253855AThe planting process is simpleLarge biomassWeed killersForestrySonneratiaEcological environment
The invention relates to a method of controlling the invasion of spartina alterniflora and restoring the ecological environment of mangrove by adopting the sonneratia apetala. The method is characterized by the steps: (1) pretreating the tidal flat of the spartina alterniflora invasion according to the requirement; (2) preparing the nursery stock of the sonneratia apetala; (3) planting the nursery stock of the sonneratia apetala according to the site condition and the thickness of the spartina alterniflora; (4) supporting and fixing the planted nursery stock; (5) pruning the undergrowth spartina alterniflora and planting the native mangrove after the crown closure and the fade-away or the complete fade-away of the spartina alterniflora. The spartina alterniflora starts the crown closure after a plantation of 1-1.5 years, the native mangrove including bruguiera gymnorrhiza and kandelia candel in the undergrowth of the spartina alterniflora can be planted after the sonneratia apetala gradually recesses to promote the formation of the community of rich biodiversity. The method adopts the fast-growing pioneer species of the sonneratia apetala to compete with the spartina alterniflora for fertilizer, water and sunlight, so as to cause the spartina alterniflora decline or death. The adopted sonneratia apetala has long growth period, large biomass, high stress resistance, easy plantation and good weed-suppressive effect.
Owner:RES INST OF TROPICAL FORESTRY CHINESE ACAD OF FORESTRY
Method for reconstructing submerged plant communities of lakeside wetland and controlling water quality purification
InactiveCN103588301ARapid cultivationProportionally largeClimate change adaptationSustainable biological treatmentPlant communityCommunity change
The invention discloses a method for reconstructing submerged plant communities of lakeside wetland and controlling water quality purification. The method comprises the steps of monitoring and analyzing the water quality purification capacity and the community change rule of water plants in an ecological restoration area of a lakeside wetland, and determining some kinds of water plants with high-intensity purification and survival ability to serve as pioneer species; determining which kind of season dominant species to which the pioneer species belong respectively, and constructing submerged plant communities of the lakeside wetland through reasonable matching of different season dominant species; quickly cultivating the pioneer species on a large scale in the ecological restoration area of the lakeside wetland to realize purification control of water quality. Compared with the prior art, by adopting the method disclosed by the invention, the amount of the submerged plant communities of the lakeside wetland can be effectively controlled, and the stability of a plant cover in an eutrophic water body is maintained, so that the method is of great significance to ecological restoration of the eutrophic water body; moreover, the method disclosed by the invention is technically reliable, simple and feasible in operation and low in cost.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
Intensive manual assistance eco technique and system for restoring degraded beach zone
InactiveCN1958478AImprove water qualityHigh transparencySustainable biological treatmentBiological water/sewage treatmentEcological safetyWater quality
This invention provides an improved technical system for restoring deteriorated lakeside zone. The technical system comprises: utilizing variable-amplitude water level zone as the core, setting a certain range of land radiation zone and water radiation zone as the protective zone, clearing artificial interferences, restoring the base, stabilizing the bank slope, controlling near-bank wind and wave, improving large-area water body quality by using land plant floating bed technology, and improving water body transparency. The technical system selects local plant species as the pioneer species, and utilizes a combination of transplanting and introducing soil seed banks to restore and maintain the ecological system functions of lakeside zone. The technical system is highly adaptable to the environmental conditions, and has high operability and high ecological safety. The technical system can achieve good scenic effect during and after the restoration of lakeside zone.
Owner:CHINESE RES ACAD OF ENVIRONMENTAL SCI
Ecological restoration method for sulfur-containing mine waste slag pile
InactiveCN105917781APromote successionGuaranteed stabilityContaminated soil reclamationPlant cultivationPlant communityRestoration method
The invention relates to a restoration method for a mine waste slag pile, specifically to an ecological restoration method for a sulfur-containing mine waste slag pile. The ecological restoration method comprises the following steps: (1) plowing and flatting a waste slag pile, and carrying out natural and full leaching and exposing under the sun; (2) mixing waste slag with quicklime, sludge and an organic fertilizer; (3) planting nitrogen-fixing trees, shrubs and herbaceous plants so as to form a dominant plant community; and (4) allowing pioneer species to evolve, and planting woody trees and shrubs. The ecological restoration method for the sulfur-containing mine waste slag pile provided by the invention can simply and rapidly construct a plant community on the sulfur-containing mine waste slag pile, plants a nitrogen-fixing plant dominant community by utilizing combination of engineering measures and biological measures, promotes reconstruction and evolution of an ecological system in a mine area in the means of natural restoration, restores the stability of the ecological system, thereby achieving the purpose of ecological restoration of a mine.
Owner:辽宁有色基础工程有限公司
Method for quickly restoring ecological functions of coastal wetlands
ActiveCN103563633AImprove physicsGood chemical propertiesSpadesFertilising methodsApocynum venetumPlant community
The invention discloses a method for accelerating plant community succession, promoting wetland ecological system functions and quickly restoring ecological functions of coastal wetlands. The technical scheme is as follows: the method is characterized by comprising the steps as follows: 1) preparation of bio-fertilizer: seeds of suaeda of pioneer species of the coastal wetlands are sowed in large experimental fields, suaeda plants are dug, root soil is collected and mixed uniformly with crushed plant fragments, the mixture is bagged for water logging; 2) fertilization and soil ploughing: in spring, the bio-fertilizer is spread on the degraded soil of the coastal wetlands, and the soil is ploughed; 3) colonization of the sowed suaeda and soil transformation: the seeds of the suaeda are sowed after the soil is ploughed, and colonization lasts for one year; 4) continued transformation and upgrading of the soil: in the following spring, seeds of plants such as zoysia japonica, apocynum venetum and the like are sowed, so that transient plant communities of the wetlands grow quickly; and 5) natural restoration of the ecological functions of the wetlands.
Owner:OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
Method for rapidly recovering slope vegetation
InactiveCN108739118APromote rapid formationPromote recoveryPlant cultivationCultivating equipmentsRevegetationCold season
The invention relates to a method for rapidly recovering slope vegetation. The method comprises the following steps that 1, the slope surface is prepared; 2, net hanging is conducted; 3, rivet reinforcement is conducted; 4, vegetative plate erecting is conducted; 5, base material spraying is conducted; 6, seed layer spraying is conducted, wherein to-be-sprayed plant seeds are a mixture of seeds ofpioneer species, constructive species and a ground cover, the seeds are mixed according to the proportions of 20-100 g / m<2> of pioneer species, 20-60 g / m<2> of constructive species and 10-30 g / m<2> of ground cover, the pioneer species adopt annual or biennial herbaceous plant seeds, the constructive species adopt shrub or small tree seeds, and the ground cover adopts cold season grass seeds and warm season grass seeds for mixed sowing; 7, non-woven fabrics are used for covering. Accordingly, on the premise that an existing technical process is not changed, and the construction cost is not increased, the better slope vegetation recovery effect if obtained, and rapid forming and sustainable development of the target community are promoted.
Owner:QINZHOU UNIV +1
Ecological restoration method for treating eutrophic water body by utilizing Nuphar sinensis
InactiveCN102633367AStrong population competitivenessStrong wind and wave resistanceSustainable biological treatmentBiological water/sewage treatmentRevegetationRestoration method
The invention discloses an ecological restoration method for treating a eutrophic water body by utilizing Nuphar sinensis, which is particularly applied to ecological restoration of city park lakes with landscape requirement on a water area and large-scale eutrophicated shallow water lake lakeside zones. The method comprises the following steps of: adopting the Nuphar sinensis as a pioneer species for restoring aquatic vegetation, adopting a subterraneous stem propagation body or seedling vegetative propagation manner in shallow water areas and / or river bank zones, and field planting the Nuphar sinensis in a patchiness distribution manner; in the next year, utilizing a 'centripetal radiation pressure seedling method' to realize rapid expansion of plant groupings so as to form an annular plant grouping; and planting submerged plants in a restoration area, so that the plant cover degree reaches more than 60 percent finally. Compared with a traditional plant material restoration technology, the method has the characteristics of excellent water quality purification effect, simple management and high economic value, has the advantages of ecological features, sightseeing performance and economical efficiency, and has wide popularization and application prospect.
Owner:NANJING INST OF GEOGRAPHY & LIMNOLOGY
Three-dimensional recovery technology for highland degraded wetland watershed vegetation
InactiveCN103718818ALow costSimple and fast operationHorticultureSoil-working methodsRecovery methodPlateau
The invention relates to a three-dimensional recovery technology for highland degraded wetland watershed vegetation and belongs to the technical field of ecological restoration. The used basic method comprises the steps of screening and collecting local species to form a recovery formula species base, sowing the local pioneer species and seeds which are resistant to drought, can grow easily and has appreciation and medicinal value, and transplanting shrub and arbor which grow commonly in local places and are good in growth vigor to increase ground surface vegetation coverage quickly. Consequently, the plant species structure is restored in a three-dimension mode. The three-dimensional recovery technology can protect the diversity of local species of highland wetland watershed, can recover the functions of highland wetland watershed water and soil conservation and water conservation, can restrict the degeneration trend of highland watershed, and is an ecology recovery method which is small in investment and high in efficiency for areas where highland humanity and economy development are restricted.
Owner:INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
Process for constructing river channel ecological system of hard revetment by aid of cofferdams and floating beds
InactiveCN103422464ARestoring water ecosystemsLow costStream regulationSustainable biological treatmentHydrometryRiver routing
The invention discloses a process for constructing a river channel ecological system of a hard revetment by the aid of cofferdams and floating beds. The process include steps of performing hydrological investigation to measure water velocities, water depths and tidal slopes, constructing a plurality of parallel cofferdams along the direction perpendicular to water flows on the sides of the hard revetment according to measured data, fixing the cofferdams by the aid of wood piles, forming ecological restoration zones among the cofferdams, arranging the floating beds on water surfaces among the cofferdams and arranging fungus membrane curtains on offshore sides of the floating beds; planting pioneer species of submerged plants in the ecological restoration zones and performing initial restoration on the ecological restoration zones; planting a plurality of extension species of submerged plants in the ecological restoration zones; performing biological diversity extension, and then regularly removing invasive species when the extension species advantageously grow in the ecological restoration zones. The process has the advantages that the water ecological system of the hard revetment can be quickly and effectively restored by the process, the cost is low, and the process is favorable for large-area popularization.
Owner:SHANGHAI NAN YANG MODEL HIGH SCHOOL
Submerged plant hard-bottom point-hitting planting technique
InactiveCN101422113AImprove survival rateImprove water quality conditionsPlantingCultivating equipmentsWater transparencyPioneer species
The invention relates to a technology of punching at a hard bottom for a submerged plant and belongs to the technical field of water ecological rehabilitation. The pointed culturing of the submerged plant can be realized under the conditions of a hard substrate and an extremely low water transparency by the collection, sorting, culture pan culturing, underwater punching and planting of a germchit; the technology is simple and easy, has a high surviving rate, can change the partial water quality condition by scale planting, realize the self-surviving and developing as well as achieve the goals of improving the environment and rehabilitating the ecology. The technology is particularly suitable for culturing the pioneer species of the submerged plant in a water ecological rehabilitation project under the covering condition of seasonal cyanobacterial blooms caused by the eutrophication of lakes. The adaptive water depth can achieve more than 3m.
Owner:NANJING INST OF GEOGRAPHY & LIMNOLOGY
Method for improving germination rate of Puccinellia tenuiflora seed
InactiveCN104396736AGuaranteeing the role of pioneer speciesPromote germinationHorticulture methodsPlant tissue cultureRevegetationAlkali soil
The invention relates to a method for improving germination rate of Puccinellia tenuiflora seeds. Before germination, the Puccinellia tenuiflora seeds are soaked in a Bacillus subtilis GB03 bacteria liquid. The scheme for treating Puccinellia tenuiflora seeds can effectively improve the germination potential and germination rate of Puccinellia tenuiflora seeds, alleviate the phenomena of no seedling emergence or late seedling emergence, irregular seedling emergence, seedling lack and ridge break after sowing, and ensure the role of pioneer species of Puccinellia tenuiflora in the improvement of saline alkali soil and vegetation restoration. At the same time, Bacillus subtilis the characteristics of no toxicity or harm to human and animal, no pollution to the environment, no pathogenicity and strong resistance. The method for improving the germination rate of Puccinellia tenuiflora seeds provided by the invention has simple operation, can be widely applied to planting of pasture forage, and has important economic value.
Owner:LANZHOU UNIVERSITY
Restoration method for small river sand excavation slash
The invention relates to the technical field of ecological restoration engineering, in particular to a restoration method for a small river sand excavation slash. A retaining dam is constructed in the low-water period of a small river; a sand pit of the sand excavation slash and a river bottom are flattened through a large machine; biodegradable straw matting is laid and fixed; the river is longitudinally segmented; submerged plants which have roots with soil are planted on the straw matting; water is guided back in a segmented manner; and after one side is restored, the other side of the sand excavation slash is restored with the same method, and therefore ecological restoration of the sand excavation slash is achieved. A segmented governance manner is adopted for the small river sand excavation slash in the low-water period, and therefore governance difficulty is effectively reduced. The biodegradable straw matting is laid in a combined manner. An excellent habitat is provided for the submerged plants, other animals, plants and microorganisms, and biological diversity is improved. Pioneer species and successional species are combined, and therefore succession and evolution of the submerged plants are facilitated, and the method is an economical and effective ecological restoration method for the river sand excavation slash.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
Urban river benign ecosystem construction method
ActiveCN113860507AImprove the landscape effectStable transparencySustainable biological treatmentBiological water/sewage treatmentEnvironmental resource managementPlant community
The invention discloses an urban river benign ecosystem construction method. The method mainly comprises three stages: an aquatic plant restoration stage, an ecosystem construction stage and an ecological regulation and control stage, wherein the aquatic plant recovery aims at a single community formed by planting pioneer species, and the abundance index and the diversity index of submerged plant communities are improved by replanting different types of submerged plants through interferences of forest windows; the ecological system is constructed and perfected, a food network chain with a reasonable structure needs to be constructed, and the construction mainly comprises throwing of zooplanktons, benthonic animals and fishes; and bidirectional feedback coordination of the biocenosis and the water body environment is formed by comprehensively improving the composition of the biocenosis, so that the purposes of reconstructing a healthy water ecosystem and realizing water environment treatment and water ecology restoration are achieved. After the ecological system is stabilized, the overall vegetation coverage rate exceeds 40%, the transparency is stably maintained to be 0.80 m or above, the water quality of a river channel is clear, fishes fly and shallow, and the landscape effect of the water surface is good.
Owner:NANJING NORMAL UNIVERSITY
Repairing method for side slope of mine dump
ActiveCN109618794AReduce competitionReduce the risk of mass mortalityHops/wine cultivationFabaceae cultivationMyriophyllumPotassium
The invention relates to a repairing method for a side slope of a mine dump and belongs to the technical field of side slope repair. The repairing method comprises the following steps of: planting trees, shrubs and herbaceous plants on the side slope of the mine dump; and planting the trees and the shrubs in the bottom layer, planting leguminous plants in the middle layer, and planting the herbaceous plants in the surface layer. By the adoption of the repairing method, the arbors, the shrubs and the herbaceous plants are combined, deep and shallow root systems are combined, herbs and woody plants are combined, legumes and gramineae are combined, pioneer species, auxiliary species, occasional species, constructive species and dominant species are combined, layered sowing is adopted, so thatgrowth and development nodes of different species are different, the growth and development nodes of biology are stagger, and competition of plants on nitrogen, phosphorus, potassium, other trace elements, space, sunlight and water is retarded; multi-species mixed sowing is adopted, so that intra-species competition and the inter-species competition are reduced and a survival rate is improved; seed size and sowing depth are different, so that the seedling emergence time is different, the seedling emergence time is prolonged, and the risk of large-area death of a seedling group caused by short-time drought in a seedling stage is greatly reduced.
Owner:内蒙古蒙草土壤科技有限责任公司 +1
Fresh water ecosystem restoration method based on seed bank activation and biological regulation and control
PendingCN112340849ALarge capacityIncrease capacityWater treatment parameter controlHops/wine cultivationPioneer speciesEnvironmental geology
The invention discloses a fresh water ecosystem restoration method based on seed bank activation and biological regulation and control, which comprises the steps of (1) checking point sources and scattered pollution discharge entering a water body, distinguishing pollution sources and intercepting pollution; (2) sampling and analyzing the bottom mud, sampling, investigating and analyzing a seed bank, determining a seed bank structure in a laboratory, analyzing dominant plants before recession, analyzing an aquatic plant community structure, determining pioneer species of submerged plants, anddetermining pioneer species seed bank activation conditions in the laboratory; (3) carrying out on-site detection and analysis on water body conditions; (4) activating the seed bank, specifically, (1)controlling the total nitrogen concentration of the restoration area, (2) controlling the total phosphorus concentration of the restoration area and inhibiting the growth of microalgae, and (3) controlling the water depth / transparency of the restoration area; and (5) conducting biological regulation and control, specifically, (1) adding benthonic animal snails and herbivorous fishes, and (2) adding filter-feeding fishes. The sediment seed bank is used for activating and restoring the water ecological environment, underwater vegetation degradation caused by external pollution is treated, the cost is low, and the effect taking speed is high.
Owner:山东省环科院环境工程有限公司
Method for restoring river submerged plant
ActiveCN103141370AReturn to normal structureRecovery functionWater resource protectionSustainable biological treatmentRestoration methodMaintenance management
The invention discloses a method for restoring a river submerged plant. The method is characterized in that the submerged plant is used as a pioneer species, appropriate submerged plant is cultivated in the river, different growth conditions of the submerged plant in the river are controlled, submerged vegetation is reconstructed in the degraded river through appropriate maintenance management technology, and the survival rate of the reconstructed submerged vegetation reaches 60 to 70 percent. The local environment of the river water ecological system is improved by restoring the water plants of the river, the structure and the function of the river ecological system can be restored, the cost is low, simplicity, feasibility, low carbon and environmental friendliness can be realized, the benefit is remarkable, the method is suitable for the restoration engineering of the water vegetation of the polluted river and for the ecological reconstruction engineering of the polluted river water plant diversity and water ecological system.
Owner:SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
Slope vegetation restoration method suitable for autumn and winter construction
InactiveCN108934891APromote rapid formationImprove greening effectFlowers cultivationHops/wine cultivationRevegetationStenotaphrum helferi
The invention relates to a slope vegetation restoration method suitable for autumn and winter construction. The method comprises the following steps of 1, slope finishing; 2, net hanging; 3, anchor reinforcement; 4, vegetative plate erecting; 5, base material spraying; 6, seed layer spraying, wherein plant seeds pending to be sprayed are a mixture of seeds of pioneer species, edificator and groundcovers. By means of seed germination rate tests, when the seed germination rate is 80% or above, mixing is conducted according to the proportion that the dosage of the pioneer species per square meter is 20-100 g, the dosage of the edificator per square meter is 20-60 g, and the dosage of the ground covers per square meter is 10-30 g, the pioneer species adopts one or more of daisies, calceolariaand corychophramus violaceua, the edificator adopts one or more of rhus chinensis, cassia glauca Lam. and magnolia multiflora, and the ground covers adopts one or more of manilagrass, tifdwarf bermudagrass, zoysia tenuifolia, bermudagrass, centipedegrass, stenotaphrum helferi and buffalograss. Accordingly, on the premise that an existing technical process is not changed and the construction costis not increased, a better slope vegetation restoration effect is obtained, and rapid formation of target communities and sustainable development are promoted.
Owner:QINZHOU UNIV +1
Method for ecological restoration of abrupt slope by using biological bacteria humus
InactiveCN111448953AImprove survival rateReduce mortalityGrowth substratesCulture mediaEcological environmentSpecies selection
The invention discloses a method for ecological restoration of an abrupt slope by using biological bacteria humus, which comprises the following steps of: analyzing overground species, screening suitable local species by using an underground seed bank analysis method, treating a slope surface, applying biological bacteria humus at the bottom, performing mixed material wet spray-seeding, performingstraw mat cover maintaining and managing and the like. Wherein indigenous species suitable for planting in the restoration area can be accurately screened by combining restoration area surface vegetation survey and underground seed bank species comparison, on one hand, interference of foreign species can be minimized, and long-term continuous recovery capacity can be increased for natural ecological balance, so that the survival rate of plants can be effectively increased, and the survival rate of the plants is increased; mortality rate caused by the fact that plants do not adapt to local soil and climate is greatly reduced, large-area multiple reseeding is avoided, and the repairing efficiency and the long-term ecological repairing effect are greatly improved. On the other hand, the transition period of pioneer species can be omitted through vegetation species selection, native species suitable for being planted in the restoration area are screened out, the original ecological environment can be restored earlier, and the purpose of early effectiveness is achieved.
Owner:甘肃汇丰生态建设工程有限公司
Heavy metal in-situ control and vegetation improvement method of lead-zinc smelting waste slag
InactiveCN103949466AImprove water holdingIncrease water holdingContaminated soil reclamationSurface layerSlag
The invention discloses a heavy metal in-situ control and vegetation improvement method of lead-zinc smelting waste slag. The heavy metal in-situ control and vegetation improvement method comprises the following steps: a. selecting and collecting plant litters; b. covering a waste slag storage yard or mixing a surface layer; c. degrading; and d. recovering or repairing. According to the heavy metal in-situ control and vegetation improvement method of lead-zinc smelting waste slag, by using the litters of pioneer species which are suitable for growing in the lead-zinc smelting waste slag storage yard, through surface covering or mixed fermentation degradation, a characteristic polluted heavy metal in the storage yard is effectively immobilized in situ, the release is inhibited, the water retention and holding property of the lead-zinc smelting waste slag is improved, the content of medium mineral nutrients in the storage yard and the activity of microorganisms in soil are remarkably improved, the vegetation condition of the storage yard is effectively improved, and a good earlier-stage foundation is laid for the later-stage vegetation recovering work.
Owner:GUIZHOU UNIV
Ecological restoration method for treating eutrophic water body by utilizing Nuphar sinensis
InactiveCN102633367BStrong population competitivenessStrong wind and wave resistanceSustainable biological treatmentBiological water/sewage treatmentRevegetationRestoration method
The invention discloses an ecological restoration method for treating a eutrophic water body by utilizing Nuphar sinensis, which is particularly applied to ecological restoration of city park lakes with landscape requirement on a water area and large-scale eutrophicated shallow water lake lakeside zones. The method comprises the following steps of: adopting the Nuphar sinensis as a pioneer species for restoring aquatic vegetation, adopting a subterraneous stem propagation body or seedling vegetative propagation manner in shallow water areas and / or river bank zones, and field planting the Nuphar sinensis in a patchiness distribution manner; in the next year, utilizing a 'centripetal radiation pressure seedling method' to realize rapid expansion of plant groupings so as to form an annular plant grouping; and planting submerged plants in a restoration area, so that the plant cover degree reaches more than 60 percent finally. Compared with a traditional plant material restoration technology, the method has the characteristics of excellent water quality purification effect, simple management and high economic value, has the advantages of ecological features, sightseeing performance and economical efficiency, and has wide popularization and application prospect.
Owner:NANJING INST OF GEOGRAPHY & LIMNOLOGY
Ecological restoration process by using submerged plant as pioneer species
InactiveCN102557334AHigh sunlight transmittanceIncrease spacingEnergy based wastewater treatmentMultistage water/sewage treatmentTransmittanceEnvironmental engineering
The invention relates to an ecological restoration process applicable to urban river polluted waters, and the restoration process adopts a step floating bed as a tool for ecological restoration; plants planted on the step floating bed is distributed stepwise from low to high; intervals between plants are large; the sunlight transmittance is high; and the water purification effect is obvious. According to the invention, clay is prepared by a special method, is palletized, and is filled into a plastic basket; submerged plants are transplanted into the basket; and the basket is embedded into sediment of a floating bed action area. After a period, the submerged plants begin to root, and extend successfully in the sediment; the transplant technology can successfully resist the impact of large tide under difficult conditions such as hard bank slopes and tide. Finally the floating plant zone at a low layer of the step floating bed is removed, which allows the submerged plants to extend gradually to the center of the river and to gradually overspread the whole river polluted area, and thus the ecological restoration of the polluted river is completed.
Owner:SHANGHAI NAN YANG MODEL HIGH SCHOOL
Underwater topographical structure used to water body ecological restoration
PendingCN110240277ARich biodiversityReduce management and maintenance costsBiological treatment apparatusContaminated waterways/lakes/ponds/rivers treatmentEngineeringLandform
The invention provides an underwater topographical structure used to water body ecological restoration. The underwater topographical structure includes at least one ecological restoration unit; each ecological restoration unit includes a first plantation belt used to plant shallow submerged plant species, a second plantation belt used to plant deep submerged plant species and a winrow; the water depth of the first plantation belt is smaller than the water depth of the second plantation belt; the water depth of the second plantation belt is smaller than the water depth of the winrow; a first grading slope is arranged between the first plantation belt and the second plantation belt; a second grading slope is arranged between the second plantation belt and the winrow. According to the underwater topographical structure provided by the invention, proper water depth and living environmental requirements for different submerged plants are utilized, the underwater topographical structure is established according to water depth gradient, proliferation and extension of pioneering species and a minority of competitive plants caused by homogenization of the habitat is avoided, simultaneous growth of various submerged plants in the same water body is realized, and biodiversity of water body species is enriched.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST
A Restoration Method of Sand Excavation Site Excavated by Small Rivers
The invention relates to the technical field of ecological restoration engineering, in particular to a restoration method for a small river sand excavation slash. A retaining dam is constructed in the low-water period of a small river; a sand pit of the sand excavation slash and a river bottom are flattened through a large machine; biodegradable straw matting is laid and fixed; the river is longitudinally segmented; submerged plants which have roots with soil are planted on the straw matting; water is guided back in a segmented manner; and after one side is restored, the other side of the sand excavation slash is restored with the same method, and therefore ecological restoration of the sand excavation slash is achieved. A segmented governance manner is adopted for the small river sand excavation slash in the low-water period, and therefore governance difficulty is effectively reduced. The biodegradable straw matting is laid in a combined manner. An excellent habitat is provided for the submerged plants, other animals, plants and microorganisms, and biological diversity is improved. Pioneer species and successional species are combined, and therefore succession and evolution of the submerged plants are facilitated, and the method is an economical and effective ecological restoration method for the river sand excavation slash.
Owner:LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
Process of flexible type stone cage method for building watercourse ecological system
InactiveCN103422465AEasy to recycleLow costStream regulationSustainable biological treatmentCofferdamEngineering
The invention discloses a process of a flexible type stone cage method for building a watercourse ecological system. The process comprises the following steps that cofferdams are built through flexible type stone cages to form an ecological restoration area, the water surface between the cofferdams is provided with a floating floor, and the side, far away from the coast, of the floating floor is provided with a mycoderm hanging curtain; submerged plant pioneer species strong in pollution resistibility are planted in the ecological restoration area, and primary restoration is conducted; a plurality of kinds of submerged plant expansion species are planted in the ecological restoration area; invasive species are eliminated at regular intervals. According to the technical scheme, by means of the process, the water ecological system can be rapidly built in a watercourse where the flowing speed is high, the water depth is high and tide fall is large; as the flexible type stone cages and bagged stone are adopted, and after the ecological system is restored, the stone cages and stone bags can be conveniently recycled and reused. Meanwhile, the process has the advantages of being low in cost and beneficial to being popularized widely.
Owner:SHANGHAI NAN YANG MODEL HIGH SCHOOL
Effect evaluation method for improving coastal solonchak by taking coastal mallows as pioneer species
InactiveCN103713112ACalculation method is simpleImprove accuracyEarth material testingSoil aggregateDry measure
The invention belongs to the technical field of coastal solonchak improvement and in particular relates to an effect evaluation method for improving coastal solonchak by taking coastal mallows as pioneer species. According to the method, rapidly available phosphorus, alkali-hydrolyzale nitrogen, organic matters, the salt content, total glomalin relevant soil proteins, the soil aggregate content, plant biomass (dry measure) and the like are used as evaluation indexes, and an equation for calculating the indexes for improving the coastal solonchak by taking the coastal mallows is constructed; meanwhile, an evaluation standard is provided; therefore, the effect for improving the coastal solonchak by taking the coastal mallows can be quickly and accurately evaluated. A technical support for improving the coastal solonchak by populating and planting the coastal mallows in coastal areas in China can be supplied, and popularization and application of coastal mallow salt-tolerance oil plants in the coastal areas in China are promoted.
Owner:JIANGSU HAILIFA BIOLOGICAL SCI & TECH
A waterfront forest construction method for subtropical mountainous cities based on native plants
ActiveCN111165253BIncrease diversityChanging lighting conditionsCultivating equipmentsEcological environmentWetland
The invention discloses a method for constructing a subtropical mountain urban waterfront forest based on native plants in the field of ecological restoration. The method includes the following steps: S1: long-term field observation on the history and current situation of native species in the local waterfront space and consulting of relevant documents ; S2: formulate qualitative criteria for the selection of top pioneer species suitable for urban waterfront space, and include the plants of the top pioneer species; S3: select the top pioneer plants suitable for the subtropical mountain urban ecological environment according to the above criteria; S4: according to the site wetland conditions , the lower part of the arbor layer of the vertical structure of the waterfront forest community is equipped with water-resistant shrub layer plants. Adapt to the original bare land of the urban construction site, the large amount of green shade, the stable waterfront forest structure, enhance the biodiversity of the waterfront wetland, improve the level of ecosystem service functions, solve the endogenous secondary pollution of the previous graphic design and reduce manual management , Provide more summer urban cool source to meet social needs.
Owner:SOUTHWEST UNIV
Reconstruction of submerged plant communities and water purification control methods in lakeside wetlands
InactiveCN103588301BProportionally largeEasy to operateClimate change adaptationSustainable biological treatmentPlant communityCommunity change
The invention discloses a method for reconstructing submerged plant communities of lakeside wetland and controlling water quality purification. The method comprises the steps of monitoring and analyzing the water quality purification capacity and the community change rule of water plants in an ecological restoration area of a lakeside wetland, and determining some kinds of water plants with high-intensity purification and survival ability to serve as pioneer species; determining which kind of season dominant species to which the pioneer species belong respectively, and constructing submerged plant communities of the lakeside wetland through reasonable matching of different season dominant species; quickly cultivating the pioneer species on a large scale in the ecological restoration area of the lakeside wetland to realize purification control of water quality. Compared with the prior art, by adopting the method disclosed by the invention, the amount of the submerged plant communities of the lakeside wetland can be effectively controlled, and the stability of a plant cover in an eutrophic water body is maintained, so that the method is of great significance to ecological restoration of the eutrophic water body; moreover, the method disclosed by the invention is technically reliable, simple and feasible in operation and low in cost.
Owner:NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
Propagation technology of sand-fixing pioneer plant Amygrhiza sativa germplasm resources
The invention discloses a sand-fixing vanguard plant sand rice germplasm resource propagation technology, the sand rice seeds are purified, the dead branches, broken leaves, and sand impurities are removed, and plump, insect-free and damage-free sand rice is selected Seeds; soak seeds with 10% sodium hypochlorite for 5‑10min to sterilize, rinse and dry with distilled water; place seeds in dark conditions and soak them with 2g / L GA3 for 24h to break the dormancy of sand rice seeds; sow seeds in strips to seedlings Medium, covered with 1-2cm thick silt soil after sowing; watered to moisturize and cover a layer of sunshade net 1m above the seedling field; germinated after sowing 5-6d, part of the sunshade net was removed at night, watered and moisturized; 10- 15d stop seedling emergence, throw off all sunshade nets at night, water and moisturize. The invention can effectively break the dormancy of the sand rice seeds, has the advantages of simplicity, convenience, quickness and effectiveness, can propagate a large number of seedlings in a short time and can provide materials needed for realizing the edible and forage sand rice germplasm resources.
Owner:GANSU DESERT CONTROL RES INST
A method for recovering woody plants on a fly ash stockyard
Owner:GUIZHOU UNIV
A recovery method for river submerged plants
ActiveCN103141370BReturn to normal structureRecovery functionWater resource protectionSustainable biological treatmentRestoration methodMaintenance management
The invention discloses a method for restoring a river submerged plant. The method is characterized in that the submerged plant is used as a pioneer species, appropriate submerged plant is cultivated in the river, different growth conditions of the submerged plant in the river are controlled, submerged vegetation is reconstructed in the degraded river through appropriate maintenance management technology, and the survival rate of the reconstructed submerged vegetation reaches 60 to 70 percent. The local environment of the river water ecological system is improved by restoring the water plants of the river, the structure and the function of the river ecological system can be restored, the cost is low, simplicity, feasibility, low carbon and environmental friendliness can be realized, the benefit is remarkable, the method is suitable for the restoration engineering of the water vegetation of the polluted river and for the ecological reconstruction engineering of the polluted river water plant diversity and water ecological system.
Owner:SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
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