71 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 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.

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 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 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 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 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 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 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.