73 results about "Community" patented technology

The invention relates to an ecological restoration method for a city watercourse. The ecological restoration method for the city watercourse is characterized in that the polluted city watercourse is comprehensively restored with the combination of physical, biological and ecological technologies, the ecological theory is used for reference in the treatment process, the ecological idea is used as the guiding thought, a complex water ecosystem structure is constructed and restored, the original natural state of the watercourse is restored, the self-cleaning capacity of a river system is improved, the environment is beautified, and the local city microclimates are improved at the same time. The ecological restoration method mainly comprises the steps of (1) controlling a pollution source, (2) modifying the river bank, (3) optimizing the environment of the river bottom, (4) modifying the watercourse, (5) conducting aeration and oxygenation, (6) constructing an aquatic plant community, (7) constructing a fish and macrobenthos community, and (8) maintaining the system. The watercourse ecological system restored through the ecological restoration method has the certain anti-interference capacity, on the premise that a large amount of exogenous pollution is cut off, the certain-strength interference can be resisted, and the good ecological environmental effect is obtained. After one-time input, the better ecological benefit can be obtained only with a small number of maintenance costs.

The invention belongs to the field of ecological restoration technology and relates to construction technology of polluted lake submerged plant communities. The aim of the invention is to provide a method for constructing lake submerged plant communities. Based on the existing related technology of lake ecological restoration, in combination with the distribution environment characteristics of aquatic plants and the floristic characteristics of the plants, submerged plant endemic species suitable for polluted water introduction are selected; a proper planting method is selected to restore the vegetation according to the stormy wave and sediment characteristics of the restoration areas; the space and time layouts of the community are designed and optimized according to the life history and proper growth water level of the plants, in order to construct the submerged plant communities, ensure that the submerged plant communities are distributed in all seasons and from the lakeside to the lake center, keep certain biomass and restore the submerged plant communities, to further provide scientific and reasonable basis for the ecological restoration of lakes.

The invention relates to a method for recovering the wetland of hurt lake, with plant biological theory, ecological theory, etc, wherein the invention can increase the lives of wetland system, and recover the natural wetland ecological system, to realize the self-maintenance function of natural wetland group. Therefore, via the metabolism, physical and chemical functions of wetland plant and soil, the organic and inorganic can be stop at the wetland system, while the harmful one is decomposed into innocuous one, to purify the water. The invention has low cost, and high purifying efficiency.

The invention discloses an ecological reference value calculating method based on plankton community change. Ecological reference values of taihu lake basins and liao river basins in China are calculated by adopting a synthetical index method according to physical and chemical factors. A preliminary calculating framework is as follows: 1, determining a basin water environment ecological reference point and an ecological reference index; 2, making a BOX distribution map of each reference index of the reference point and giving a mark; and 3, weighing the marks of the ecological reference indexes, and taking the mark of 90 as the reference value of the basin. The establishment of an ecological reference can be used for evaluating the completeness of the structure and function of a water ecological system; and probably ignored potential problems during evaluation and analysis of other water quality references can be found out conveniently.

The invention belongs to the technical field of ecological environment, and particularly relates to an ecological restoration method for a large eutrophication algae type lake waterscape area. According to the ecological restoration method, a waterscape area to be restored is separated from an external large lake area by a soft algae blocking fence and an ecological wave eliminating zone, so that invasion of bloom-forming cyanobacteria of the external lake area and wave are reduced; then an algae discharge door is arranged at the shore sides of the upwind direction and downwind direction of the waterscape area, so that blue-green algae of the waterscape area and invading from external area is discharged timely by natural wind; finally, emergent aquatic plants with strong stress resistance and good visual effect are planted in shoal waters of the shore of the waterscape area, submerged plants and floating-leaved plants are planted outside the emergent aquatic plant area, and floating plants are planted in an abyssal region. The algae bloom of the whole waterscape area is gradually and effectively controlled under the combined action of internal effect and external effect, aquatic plants and hygrophyte colonies are gradually increased, the water transparency is obviously improved, and ecological service functions of the landscape are gradually restored.

The invention discloses a detection method for the biological community structures of an ocean brown tide. According to the detection method, miniature organism 18S rDNA in a water area environment is detected by virtue of a metagenomics high-throughput sequencing technology, the obtained OUTs and species annotations are combined, and then diversity, uniformity, abundance and dominance index analysis is carried out on the OUTs, thus judging the dominance degrees of organisms in the ocean brown tide; statistics and judgment for the dominance evolvement rules of dominant species in brown tide outbreaks are promoted. The embodiment of the invention designs and verifies primer sequences designed with regard to the organisms in the brown tide, and a verification for the actual brown tide outbreak cases proves that the method disclosed by the invention is capable of authenticating the biological community structures of the ocean brown tide in ocean water, providing a technical support for brown tide monitoring operation, and providing a technical support for avoiding environment risks for healthy mariculture.

The invention discloses an estuary wetland vegetation habitat restoration method which comprises the following steps: firstly, calculating tidal flat fluctuation tidal power and topographic evolutionprocess by utilizing a hydrodynamic model and a sediment transport model, and designing the length, width, depth, shape and the like in a targeted manner by scientifically designing tidal flat and tidal creek characteristics, so that the functional communication of the tidal flat is enhanced, and tidal water is reasonably guided to enter and exit the suaeda salsa vegetation area; secondly, throughthe constructed tidal flat hydrological communication ecological effect model, reducing erosion of tidal ditches and sediment deposition of vegetation areas, adjusting the internal water flow condition, realizing the effective field planting effect on vegetation seeds, prolonging the wetland water retention time, obtaining the optimal suaeda salsa vegetation suitable habitat, and promoting fieldplanting and natural growth of salt marsh plant seeds; and finally, changing vegetation growth habitat conditions including salt, moisture and nutrition by flooding frequency, tidal creek form, topographic and geomorphic characteristics and the like on the tidal flat, so as to influence the growth of suaeda salsa vegetation communities.

The invention provides a Yangtze estuary salt marsh wetland macrobenthos habitat simulation prediction method. The method comprises: S1, performing sampling to obtain a sampling sample, and obtainingsampling data; S2, performing zero-value data processing, and obtaining first preprocessing data; S3, obtaining and preprocessing remote sensing data and auxiliary data, and obtaining second preprocessed data; S4, obtaining a training data set and a verification data set; S5, establishing a neural network space model, and training the neural network space model to obtain a trained model; S6, verifying the fitting goodness of the trained model; and S7, screening the trained model to obtain an optimal model, and obtaining a benthic animal prediction habitat map by using the optimal model. According to the Yangtze estuary salt marsh wetland macrobenthos habitat simulation prediction method, a remote sensing means is used, a neural network space model is integrated, the problems of limited benthic organism data and nonlinear environment data of traditional simulation are solved, and the accuracy of macrobenthos community distribution simulation is improved.

The invention discloses an urban lake ecological restoration method in the technical field of ecological restoration. The method comprises the following steps: step 1, regulation and control of a fishcommunity structure; step 2, wind wave reduction; step 3, water quality conditioning; step 4, planting of submerged plants; step 5, construction of a healthy food net; and step 6, long-acting maintenance and operation. According to the urban lake ecological restoration method, ecological restoration scheme design is carried out in a targeted mode, the adopted fish regulation and control method isdifferent from non-environment-friendly means such as net catching and fish electrifying of other ecological restoration projects in the past, operation is easy, the effect taking speed is high, damage to fishes is avoided, and reference is provided for fish regulation and control of similar water bodies; the adopted wave dissipation enclosure is different from a traditional enclosure made of a net film or a PVC material; an ecological environment-friendly water-permeable enclosure is adopted and can fluctuate up and down along with the water level, the water landscape is not affected while the environment-friendly and ecological functions are achieved, and rich implementation experience is provided for ecological restoration of urban water bodies with large stormy waves.

Community development is supported by a community rating. Community ratings for various communities are compared to identify a preferred community. Historical community ratings are determined for the preferred community. Community rating trends are identified for the community and these trends are used for predicting future community rating(s) to support development decisions.

The invention discloses a branch alternative habitat construction method based on dam dismantling and local micro-landform manual intervention, which comprises the following steps: (1) selecting a branch which is most similar to fish community structure characteristics and habitat heterogeneity of a target main stream from branches of the target main stream as an alternative habitat branch; (2) constructing a one-dimensional ecological river appearance model for replacing habitat tributary, and simulating river appearance change and habitat quality change of the replaced habitat tributary after dam removal; (3) constructing a two-dimensional ecological river appearance evolution model for the local river reach of which the habitat quality is lower than a preset threshold value after dam removal of the alternative habitat tributary, and simulating the river appearance change and habitat quality change of the local river reach after different local ecological improvement measures are implemented; and (4) removing the dam selected as the tributary for replacing the habitat, and reconstructing the landform of the local river reach according to the ecological improvement measure with the maximum habitat quality improvement obtained by simulation. According to the invention, a branch alternative habitat more suitable for fishes can be constructed.

The invention discloses a biodiversity evaluation report automatic generation method, comprising the following steps: evaluation report templates for evaluating biodiversity are set according to requirements, and the evaluation report templates are numbered and stored; when a user inputs a creation demand, the system accesses different evaluation report templates according to requirements, adoptsAjax, Redis, Spring Batch, Apache Storm, Apache Spark and other technologies to call data of species, specimens, animal and plant gardens, ecological environments, vegetation communities, conservation, ecological products and biological enterprises from a collected database and carries out real-time cloud-based parallel computing, so as to return the final dynamic data to the report template to obtain a biodiversity assessment report. According to the biodiversity evaluation report automatic generation method, the evaluation report can be automatically generated, and a large amount of labor cost is saved, and the time cost is saved, and the problem of data omission is avoided, and the calculation is more accurate and efficient, and the working efficiency is improved.

The invention provides a method for evaluating competitive dominance of submerged plants in different hydrodynamic areas and application, and relates to the technical field of ecological restoration of submerged plants. According to the method, according to hydrodynamic characteristics of different areas of a water body, an indoor cosmic test is set to simulate different hydrodynamic conditions, indigenous species in a target water area are selected for co-planting culture, and changes of competitive dominance degrees of different species under different hydrodynamic conditions are evaluated; powerful theoretical support and practical basis are provided for constructing submerged plant communities for field restoration. According to the method, a competitive system is constructed, submerged plant species with large competitive advantages under different water exchange conditions are selected, and reference is provided for submerged plant restoration in the field; the method is simple to operate and low in cost.

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.

The invention relates to a rapid method for promoting ecological restoration of a damaged ecological system under an extreme arid environment. The method uses a natural succession process of natural vegetation composition, community dynamics, modes of reproduction and desert vegetational types, quickens restoration of desert plants through a mode combining artificial ecological restoration and spontaneous recovery, simultaneously uses excited effects of a desert region water and salt migration rule and a flooding mode on a seed bank to improve breeding habitats of disappeared species of degeneration communities, thereby achieving a purpose of promoting the ecological restoration of the damaged ecological system under the extreme arid environment so as to improve efficiency of the ecological restoration in a dry desert region with the condition that a precipitation amount is less than 100mm, evaporation capacity is more than 2000mm and surface water is in serious lack, improves community diversity of the desert plants through plant provenance compensation and habitat improvement, improves stability of community structures, and improves self-maintenance capability of restored plant communities.

The invention discloses a city and town river and lake water ecological restoration method based on a new restoration mode of mud first and water second. The method is used for city and town river and lake bottom mud in-situ restoration and micro-ecological reconstruction, and comprises the following steps: synchronous reduction of anaerobic bottom mud carbon, nitrogen and sulfur pollutants is realized through SedCaN particles, based on microbial acclimatization and spreading, in-situ regulation of a bottom mud microbial community structure is realized, and construction of an aerobic microbial ecosystem is realized. According to the invention, the river and lake pollution in-situ treatment mode and method have the advantages of low energy consumption, low cost, higher efficiency, higher comprehensiveness and higher safety, can realize an in-situ treatment target of construction of a water body-bottom mud healthy ecological system and collaborative reduction of pollutants, can remove 95% of oxygen consumption pollution such as bottom mud sulfide and the like within 15 days, basically eliminates black and odorous bottom mud, solves the technical bottleneck that the natural environment of the polluted bottom mud is difficult to quickly recover by an aerobic process, shortens the construction period by more than 30 days, and can save the cost by more than 40-50%compared with a desilting scheme.

The invention provides a mining area waste dump ecological restoration effect evaluation method and system, and a storage medium. The method comprises the steps: obtaining plant community information,microbial community information and ecosystem health information in a sample after the ecological restoration of a mining area waste dump; obtaining vegetation response information after ecological restoration of the mine dump according to the plant community information in the sample, obtaining microbial response information after ecological restoration of the mine dump according to the microbial community information, and obtaining ecosystem response information after ecological restoration of the mine dump according to the ecosystem health information; and obtaining an evaluation result ofthe ecological restoration effect of the mine dump according to the vegetation response information, the microbial response information and the ecosystem response information after the ecological restoration of the mine dump. According to the scheme, when the ecological restoration effect of the mine dump is evaluated, the influence of plants, microorganisms and ecosystem health information in restoration evaluation is comprehensively considered, the regional environment difference between different mines is eliminated, and the evaluation is more accurate.

The invention discloses a shallow lake ecosystem regulation and stability maintenance method. The method comprises the following steps: (1) evaluating a to-be-regulated shallow lake, obtaining different nutrient level distributions, the functional strength of each nutrient level and the biomass of different functional groups in an ecological system of the lake, and further analyzing and evaluatingwhether the lake is unbalanced in nutrition and the category and influence of unbalance factors; (2) regulating and controlling multi-nutrient-level biological proliferation; (3) recovering the vegetation in the shallow water area and reconstructing the wetland; (4) after a period of time, repeating the operations in the steps (1), (2) and (3); and (5) carrying out combined regulation and controlon the water quality and the water quantity of the shallow lake to be regulated and controlled, detecting the rainfall of the area where the lake is located, monitoring the reservoir capacity replacement of the lake, obtaining water area characteristics, nutrition imbalance conditions and aquatic organism community functional group composition according to the hydrodynamic model, and periodicallydetecting and verifying the physicochemical indexes of the water body. The method provided by the invention has a good regulation and control effect on the ecological system, and can enable the ecological system to maintain dynamic balance for a long time.

The invention discloses a compound ecological restoration method for a lakeside zone of a shallow lake, which takes pioneer submerged plant species, emergent aquatic plant species and submerged plants as cores, constructs an aquatic plant community, forms key factors for maintaining the structure and the function of an aquatic ecosystem, and combines ecological restoration technologies such as microorganisms, fishes, shellfishes and aquatic plants, on one hand, pollution indexes such as ammonia nitrogen and total phosphorus in the water body are deeply purified, and on the other hand, the balance of a lake ecosystem is kept. Meanwhile, the planted aquatic plants have good ornamental value, the ecological landscape of the lakeside zone is effectively improved, and the diversity of organisms such as birds, plants and aquatic organisms in the lakeside zone is recovered.

The invention provides a biomanipulation method capable of promoting stability of submerged plant communities for a lake ecosystem. The scheme comprises the following steps: setting stages of an ecological restoration period; determining growth conditions of submerged plants; measuring biomass of bottom-living fish; reducing the bottom-living fish. According to the method, the bottom-living fish in the ecological restoration project is reduced effectively according to practical restoration situation of the lake ecosystem, so that quality of the eutrophic water body is improved and repaired, expansion and restoration of the submerged plant communities are promoted, and the method has the characteristics of being safe, low in cost and the like.

The invention provides a power transmission line bird-related fault bird type hazard grade classification method. According to the method, population ecology, community ecology and protection biologytheories, a focus animal method, an instantaneous scanning method and a sample point method are utilized; the sex, age structure, richness, distribution and diversity of birds around the typical habitat of the power grid, a foraging strategy and a breeding behavior rule are investigated and studied; a bird hazard level model based on indexes such as bird damage faults, bird types, bird flight capabilities and bird life habits of the bird related fault bird species is established; according to the method, scientific and effective hazard grade evaluation is carried out by using the bird hazard grade model, and the difficult problems of discrimination, habit cognition and the like of bird hazard types which troubles power grid operation and maintenance personnel in the aspects of bird-relatedfault hazard types of power transmission lines for a long time are solved through the bird-related fault bird hazard grade classification method. Timeliness, scientificity and effectiveness of bird-related fault early warning and prevention work are improved, and guarantee is provided for safe and stable operation of a power grid.

The invention relates to the technical field of marine biological physiological experiments, in particular to a marine shellfish biological physiological experimental device based on a community level and a method for using the same. The experimental device includes a transparent upper barrel, a funnel, a supporting barrel and a collection bottle. The top of the body is provided with a sealing cover, and the interior is provided with an internal hanging rod for suspending the experimental biological community. One side of the barrel is provided with a water inlet, an external water pump and a water control valve, and the other side of the barrel is provided with a water outlet; supporting the barrel The middle part of the funnel is provided with a cylindrical mouth, a collection bottle is placed in the cylindrical mouth, and the lower end tube of the funnel extends into the collection bottle. The invention simulates the natural seawater temperature, flow rate and other conditions through the experimental device, and uses a large-volume container to carry out the feeding physiological experiment and the metabolic physiological experiment of the marine shellfish biological community, thereby reducing the experimental link, while maintaining the integrity of the biological community. Errors in the generalization of experimental results to the entire ecosystem.

The invention discloses a method for adding waste colloidal particles into an airport matrix to regulate the ground cover community seasonal aspect and the species composition. The method comprises the steps of firstly, clipping vegetation in a regulation area and turning soil for the area, wherein the depth is 20 centimeters, and ploughing is conducted once; according to a sample field of 6.7 m*15 m in an experiment area of the regulation area, spreading 1 t, 0.67 t and 0.34 t, respectively, of waste colloidal particles in the regulation area to be uniformly mixed with turned soil, and afterfilling, the vegetation of the regulation area is in a natural growth state; after filling of the regulation matrix is completed, inspection is conducted twice every month. A basic theory of communityecology is used, sludge compost is utilized to conduct the matrix regulation research on ground cover plants of the Tianjin airport, and the method aims at controlling bird food sources and changingthe habitat and the breeding environment of birds from the aspect of plants, lowering the diversity of species, achieving lowering of the plant community diversity, then reducing the species and the number of the birds, lowering the hidden danger to the airport safety caused by the birds, providing a theoretical basis for the airport to operate and manage the plant community and also providing a scientific basis for airport bird strike prevention work.

The invention relates to a convenient lake ecological health monitoring method based on phytoplankton communities. The method comprises the following steps of: collecting and sorting related data of corresponding relations between different types of phytoplankton and community compositions and environmental factors, and storing the related data in a central server; collecting a to-be-detected water sample and concentrating, and putting a concentrated sample on the glass slide; shooting the concentrated sample on the glass slide by adopting a microscopic imaging device, and sending a shot picture to a central server; and performing image identification, the by the central server,on the received pictures, judging and counting phytoplankton species in the images, acquiring dominant species and community structure composition information, and comparing the dominant species and community structure composition information with collected and stored data to generate a water quality report. According to the method, sample concentration and picture shooting work can be completed on site, and a large number of water samples do not need to be carried back to a laboratory for treatment. Compared with a traditional phytoplankton identification method, the method has the advantages that the phytoplankton identification time can be greatly shortened, and related results obtained in several days before are shortened to tens of minutes.

The invention provides a method for maintaining a stable submerged plant community in a lake ecosystem, comprising the following steps: selecting a target water area, dividing the target water area into blocks, improving the submerged plant habitat, and promoting the root system of the submerged plant. According to the actual problems in the restoration of the lake ecosystem, the present invention realizes the purpose of stably maintaining the submerged plant community by intervening the patches in the area covered by the submerged plants of the lake. The method has the characteristics of safety and low cost.

The invention discloses a method for determining a total nitrogen water ecological reference threshold value. The method comprises the steps: based on an artificial aquatic microcosm technology, establishing a multi-nutrition-level, multi-species and multi-ecological-parameter microcosm system containing a phytoplankton-zooplankton food net; screening a potential ecological response factor to construct a nutrient-phytoplankton-zooplankton food net pressure-response relationship, carrying out the quantitative description, and obtaining a threshold value causing plankton community structure changes. The method has the advantages that the method for determining the total nitrogen water ecological reference threshold value at the ecological system level based on the indoor experiment is provided for the first time, indoor verification can be conducted on the threshold value derived based on the field investigation experiment, and meanwhile the method has important significance in determination of the total nitrogen water ecological reference value and pollution prevention and control. The method has the characteristics of simplicity, convenience, wide application range and high practicability, and the scientificity, reliability and operability of total nitrogen water ecological reference threshold research are improved.

The invention provides a method for detecting the diversity influence of pinkflower grass on constructed wetland matrix microorganisms and application. The method comprises the following steps: (1) preparing and collecting a sample; (2) extracting DNA of a sample, detecting the concentration and purity of the DNA, and then detecting the integrity of the DNA sample; (3) carrying out PCR (Polymerase Chain Reaction) amplification; (4) performing high-throughput sequencing; (5) performing quality control, filtering, splicing and chimera removal; performing taxonomic analysis on the OTU representative sequence, and calculating alpha diversity according to the OTU data to obtain a correlation index; according to the invention, by comparing the community composition difference of a gravel surface matrix biological membrane under the condition of planting or not planting pinkgrass, amplifying and sequencing the bacterium 16S rDNA gene by using a high-throughput sequencing technology, and comparing the diversity of microorganisms in different constructed wetland environments, the flora structure and dominant bacteria of the microorganisms can be researched, and the application of the bacteria 16S rDNA gene to the artificial wetland environment can be realized. And help is provided for finally designing a more scientific constructed wetland scheme.

The invention discloses a diversified habitat system for river and lake ecosystem restoration, which comprises a habitat grid, a submerged plant bed is fixed above the habitat grid, a matrix filler is laid in the plant bed, and submerged plants are cultivated in the matrix filler. The system further comprises an illumination device and a suspension device. The illumination device is fixed above the submerged plant bed. The suspension device comprises a plurality of floating balls, the lower portion of each floating ball is connected with a biological rope, one end of each biological rope is fixedly connected with the submerged plant bed, the other end of each biological rope is fixedly connected with the corresponding floating ball, and a circle is defined by the floating balls through the ropes. The habitat grid comprises a perforated plastic plate I which is horizontally arranged and perforated plastic plates II which are fixed on the upper surface and the lower surface of the perforated plastic plate I, and the perforated plastic plates II are vertically arranged on the perforated plastic plate I. According to the system, biological diversification and community diversification are achieved by improving habitat diversity, and then virtuous circle and stable operation of a river and lake ecosystem are achieved.

The invention relates to the related fields of marine zoology, fishery resource science, marine animal ecology, aquatic animal protection science, fishery resource investigation and evaluation, marine environment ecology and the like, and establishes a quantitative evaluation method for influence of outbreak jellyfish population fluctuation on fishery resource risk. Namely, an index-competitive dominance index CAI representing the abnormal fluctuation intensity of the outbreak jellyfish population is introduced. According to the index, quantitative evaluation is carried out on fishery resource risk influence by evaluating the competitive dominance degree of the outbreak jellyfish population in the fishery resource community. The method fills up the blank of a quantitative evaluation method for the risk influence degree of the fishery resources caused by abnormal fluctuation of the outbreak jellyfish population, and has the characteristics of convenience and rapidness in operation and high feasibility.

The invention discloses a method for identifying a pit age of pit mud. According to the method, the automatic identification is realized by virtue of an automatic pit mud-pit age identification system based on cluster analysis of a metabolic fingerprint spectrum of a pit mud dominated microbial community, so that the operation is simple and convenient, the accuracy is high, the quality and maturity of the pit mud can be scientifically identified, and the scientific basis is provided for the ageing time of a new pit, the maintenance of an old pit and the like.