432 results about "Ecological safety" patented technology

The invention discloses a soil heavy mental repairing agent and a preparation method and an application thereof. The soil heavy mental repairing agent is composed of an organic material, a mineral raw material, a carbon material, an inorganic fertilizer and a microbial agent, wherein the viable count of the microbial agent is 1*10<7>-1*10<10>, the content of N, P2O5 and K2O is 8%-15% of the content of total nutrient, the content of the organic material is 20%-40% and pH is 5.5-8.5. The invention also provides an application method of the soil heavy mental repairing agent. The dosage is 80-150kg/mu; the effective heavy metal content of the soil can be effectively reduced; the heavy metal absorption of the crop can be obviously restrained; the crop yield and quality can be improved; the yield and income can be increased; the soil heavy mental repairing agent has significance in promoting social stability, economic growth and environmental diplomacy and guaranteeing ecological safety, food safety and human health.

The present invention relates to a pond cultivation combination system with water-saving and safety function, belonging to the field of aquaculture technology. Said system is composed of fish pond, artificial wet land and canal which are mutually communicated by means of water flow. The fish pond, artificial wet land and canal are successively series-connected so as to form the invented stereoscopic multi-stage utilized, closed and circulated pond cultivation combination system. It is characterized by that it can make waste water of fish pond be passed through artificial wet land and canal to purify water quality, increase dissolved oxyger and change static water of fish pond into microflow water to make cultivation so as to attain the goal of implementing high-effective cultivation of fishes and saving water resources.

The invention relates to environmental pollution plant restoration, specifically to a screening method for heavy metal enriching /accumulating plant. 1)choosing experimental field 2) determining the screening object 3) determining the polluted object 4) potted plant screening experiment for heavy metal The invention chooses weeds as screening object, potted plant experiment , wild sampling and analysis, plot experiment as main means, screen plant for plant restoration. The invention is economic, highly effective, high ecological safety, wide adaptability,

The invention discloses a coastal zone ecological security evaluation method, comprising the following steps: 1. Screening coastal zone ecological security evaluation indicators based on marine health index and urban ecological security; 2. Constructing a coastal zone ecological security evaluation index system based on a PSR model; 3. Index data collection and dimensionless; 4. Analytic hierarchy process to determine the subjective weight of the evaluation index; 5. Entropy value method to determine the objective weight of the evaluation index; 6. Determine the comprehensive weight of each index; 7. Coastal ecological security index calculation and evaluation. The evaluation method of the present invention can well reflect under the background of rapid urbanization and industrialization and large-scale human development activities, the safety status of the ecological environment in the coastal zone and the main pressure factors it bears, and can provide a basis for the protection of the ecological environment in the coastal zone area in the future. and management provide a certain theoretical basis.

The invention relates to a textile digital printing technology, and in particular discloses colloidal microsphere ink for coloring a textile digital printing structure and application of the colloidal microsphere ink. The colloidal microsphere ink for coloring the textile digital printing structure is characterized in that the colloidal microsphere ink is prepared by uniformly dispersing a mixture mainly consisting of the following components in parts by weight: 0.5-1.5 parts of mono-disperse colloidal microsphere which is 200-400nm in grain size (in terms of solid content), 0.05-0.15 part of an anionic surfactant (dispersant), 0.05-0.5 part of a pH regulator (regulating pH to 7-8) and 100 parts of deionized water. The colloidal microsphere ink formula disclosed by the invention is specifically developed to adapt to performance of coloring the textile digital printing structure; to adapt to a requirement of the textile on ecological safety, various materials of the invention are non-toxic and tasteless; to adapt to a requirement of the textile on flexibility, an ultra-thin photonic crystal structural film is sprayed and constructed as required through digital technology, which rarely affects hand feeling of the textile.

The invention relates to a control method of spartina alterniflora, belonging to the technical field of ecological engineering. Spartina alterniflora is artificially introduced in China in the 1980s, and plays a positive role for damping waves, protecting slopes, promoting deposition and reclaiming lands on Chinese coastline, however, as an alien invasive species recognized internationally, the population characters of powerful breeding and rapid extending ability of the spartina alterniflora bring a series of negative effects to the natural wetlands ecosystem of Chinese coastal tidal land and the regional biodiversity; and control of the spartina alterniflora is already a universal problem. The prior single physical, biological or chemical control method has the disadvantages of low efficiency, high environmental pollution risk, low ecological safety, high cost and unobvious control effect. The invention overcomes the disadvantages of the prior preventing and controlling techniques, and utilizes the comprehensive control method of cradling and water level regulating, eradicates the invasive species and controls the growth and rapid extension of the invasive species through restraining the growth of spartina alterniflora, plays an active restoring role to the ecological system destroyed in large areas, and provides an efficient path for preventing spartina alterniflora from spreading extensively in coastal areas.

The invention discloses a watershed water ecological security monitoring pre-warning platform and a watershed water ecological security monitoring pre-warning method, and relates to the field of watershed water ecological security. The watershed water ecological security monitoring pre-warning platform comprises a data monitoring module, an information preprocessing module, an index system managing module, a model managing module, a water ecological comprehensive evaluating module, a risk estimating pre-warning module and a risk plan managing module which are in single-direction communication connection in sequence. The watershed water ecological security monitoring pre-warning platform and the watershed water ecological security monitoring pre-warning method disclosed by the invention can be used for solving the problems that the existing watershed monitoring method is low in efficiency, poor in instantaneity and incapable of adapting to the monitoring and pre-warning requirements of the existing water quality.

The invention provides a composite material which uses nanometer bubbles to rapidly eliminate lake algae bloom and repair anaerobic substrate sludge. The composite material repairs anaerobic substrate sludge, increases the oxidation-reduction potential of the substrate sludge and the dissolved oxygen level of the water body while rapidly eliminating algae blood in a large area and increasing the transparency of the water body. The nanometer bubbles are oxygen nanometer bubbles, ozone nanometer bubbles or air nanometer bubbles. Natures of nanometer bubbles such as quantity, size, density and the like can be adjusted and controlled with a particular method. The invention also provides a method for using the composite material to repair the lake and anaerobic substrate sludge, which comprises that a mechanical method is used for spreading or spraying the composite material onto the lake surface, thus simultaneously finishing the algae bloom removal in the large area, increasing the transparency of the water body, repairing the anaerobic substrate sludge, increasing the dissolved oxygen level of the water body, and providing a good environment for the rapid growth of submerge vegetation and ecological restoration of the eutrophication water body; and the method has ecological security and long effect of the lake treatment.

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.

The invention discloses a facility efficient ecological safety lotus root and loach planting and breeding method. The facility efficient ecological safety lotus root and loach planting and breeding method includes selecting earth which meets pond requirements; 2), digging pond ditches, in other words forming foundation culture ponds, tamping pond bottoms and pond walls, forming water inlets and drainage ports in opposite corners of two ends of each foundation culture pond, and forming the annular ditches in the peripheries of the ponds; 3), laying non-woven surfaces, in other words, laying non-woven fabrics at the pond bottoms, covering the four walls of each pond with the corresponding non-woven fabrics, covering the ponds with slit, applying sufficient base fertilizers, constructing greenhouses on the peripheries of the ponds and increasing the temperatures of the insides of the greenhouses; 4), cultivating lotus roots; 5), planting the lotus roots in fields in due time; 6), releasing loaches, in other words, feeding water into the ponds until the depths of the water in the ponds range from 30cm to 40cm and completely constructing the culture ponds. The pond requirements on the earth include sufficient sunlight and water sources, warmth, ventilation, convenience in drainage, irrigation and transportation and zero toxic and harmful substance emission, and soil on the earth is preferably clay with rich humus. The depth of each ditch ranges from 60cm to 80cm, and the width of each ditch ranges from 20cm to 30cm. The depth of the silt which covers each pond ranges from 25cm to 40cm. The planting density of the lotus roots is proper so that the plant row spacing of early-maturing varieties is 1.0X2.5 meters, and the sowing quantity is 150 kilograms per mu. Each kilogram of loaches which are released into the ponds includes 200-300 loaches.

The invention discloses a method for determining an ecological safety threshold of heavy metal in chemical engineering areas. The method comprises the following steps: A1, collecting biological toxicity data; A2, screening the collected biological toxicity data according to the preset screening strategy; A3, determining whether the screened biological toxicity data quantity meets a preset data amount threshold; if it is, implementing step A4; and otherwise, supplementing biological toxicity data through the ecotoxicological test, and then implementing the step A4; and A4, based on the screened biological toxicity data, or screened toxicity data and biological toxicity data supplemented by ecotoxicological test, determining the ecological safety threshold of soil heavy metal in the chemical engineering area. The method of the invention can effectively evaluate the soil ecological risk caused by heavy metal pollutants.

The present invention relates to sewage treatment and urban water supply treatment, in the concrete, it is an ecological safe composite high-effective flocculant which can be serially used for making pretreatment before water supply, industrial waste water treatment and domestic sewage treatment. The flocculant uses iron salt, starch, anhydrous ethyl alcohol and sodium hydroxide as raw material, in which the iron salt and corn starch are main component, anhydrous ethyl alcohol or water can be used as reaction solvent, the sodium hydroxide can be used for making modification of corn starch, the mass ratio of iron in the iron salt and starch is 1:1-1:100. Its preparation method includes: (1) modification of corn starch and (2) compounding reaction to obtain whitish yellow or reddish brown emulsion-live flocculant.

The invention relates to a technical method and a salt leaching and inhibiting system for improving coastal beach by burying plant stalks in ditches. The invention is characterized in that: a drainage ditch salt leaching technology, a vertical shaft salt return inhibiting technology and a corresponding salt leaching and inhibiting system are adopted, salt in soil is leached through broad irrigation or by using natural rainfall, enters a drainage salt leaching channel which is dug in advance together with water, and is conveyed into deep soil through vertical shafts, so that the salt of surface soil is reduced. The plant stalks in the drainage salt leaching channel and the vertical shafts can keep large porosity inside accumulation for a long term, ensure that the salt leaching process is irreversible or hardly reversible, and have a long-term drainage salt leaching function. The invention follows the ecological safety concept and provides a positive and effective method for efficiently and safely improving the soil of beach and intensively and efficiently utilizing beach resources. By the invention, the production cost is greatly reduced, the salt leaching and inhibiting effect is lasting, and a problem of salt return of saline-alkali soil is avoided.

The invention relates to an ecological safety evaluating method based on a fishing net model. Through a remote sensing technology, an ARCGIS10.0 and a global positioning system, on the basis of data collecting, editing and preprocessing, fusion of multi-source heterogeneous data is conducted for ecological safety evaluating indexes through the fishing net model, fishing net units serve as ecological safety evaluating units, and the ecological safety comprehensive evaluation is conducted by means of ESEI indexes. Different from the situation that administrative regions, drainage basins, landscapes and the like usually serve as the evaluating units in similar research, ecological safety evaluation is conducted through a simplex data model (grid or vector); when the finishing net units serve as the evaluating units, the ecological safety difference in the administrative regions, the drainage basins and the landscapes can be easily revealed; when a finishing net serves as the data model, the multi-source heterogeneous data can be easily fused, the objectivity of ecological safety evaluation can be further improved, and the method has great theory and application significance in sustainable use of the ecological environment.

The invention discloses a water quality target control method for a northern large reservoir basin. A water quality target is determined through the functional zoning of the ecological environment and the functional zoning of the water environment, and pollution source control measures are determined through controlling the quantity of pollutants entering the reservoir. In the invention, the water quality of the basin and the water ecological safety are organically combined, pollution is controlled based on the evaluation of the structure and function of the water ecosystem, and a unified total pollutant control system is established. Both point source control and non-point source pollution load reduction are taken into consideration, and the rationality and fairness of pollution load distribution are ensured. A multi-level classification system is established based on the water quality condition of the reservoir. All layers are linked, and implementation is carried out layer by layer. Classified control on reservoir basin water quality target management is reflected. Finally, water quality target management is implemented in all kinds of water quality target control.

The invention discloses a reservoir watershed ecological protection method, which comprises the following steps of building a reservoir watershed digital geographic information system and performing unit division; building a contaminant database of villages and towns, popularization, livestock breeding, industrial and mining enterprises and the like; building a distributive rainfall runoff and contaminant moving coupling model; analyzing the moving rule of contaminants between the units. The method provided by the invention can be used for diagnosing the reservoir watershed ecological safety problem, analyzing the reservoir major contaminant resources and time-space distribution features, and water environment evolution processes. The surface source pollution control is implemented from the source; the ideal water quality standard reaching of reservoir entering water quality is realized through river ecological measures and watershed tail end estuarine wetland management measures. The method provided by the invention has the important technical support effect on reservoir water resource protection, beautiful village building and watershed ecological environment restoration.

The present invention discloses a method for culturing golden algea and an application thereof in controlling blooming algae, which belong to the field of water pollution control technology. The method for culturing golden algea is as follows: golden algea and microcystic aeruginosa are added into the BG11 culture medium; the golden algea lives on the microcystic aeruginosa to grow heterotrophically; after seven to ten days of culturing, the microcystic aeruginosa is gradually eaten up; the golden algea gets into the stable growing period; high-density golden algea liquid is obtained; and the golden algea liquid is centrifugated in order to harvest the golden algea. The golden algea harvested by centrifugating or the golden algea liquid is directly added into the water body, and the golden algea swallows the blooming algae, so that the overgrowth of the blooming algae can be controlled and the blooming algae can be eliminated. The method which utilizes the golden algea to swallow the blooming algae to prevent the outbreak of the blooming algae and control the growth of the blooming algae is an algae-inhibiting method which is characterized by good ecological safety, cheap materials, economy, high efficiency and easy utilization, and has the advantages of easy golden algea culturing, good algae control effect, etc.

The invention relates to a method and a device for early warning of a farmland ecological environment. The method comprises the steps of constructing a farmland ecological environment quality prewarning index system, and determining the prewarning index; determining the standard value and the weight of the prewarning index; obtaining the prewarning index by utilizing the measured value or statistical value of the prewarning index and the standard value of the prewarning index; determining the prewarning total index by utilizing the prewarning index and the weight; through a prewarning model, determining the prewarning type by utilizing the prewarning total index; and performing early warning on the farmland ecological environment according to the prewarning type. According to the technical scheme, the mode of incomprehensive index investigation, low efficiency and poor reliability is developed into a mode of high-efficiency, real-time and accurate monitoring and prewarning technology, the precision of monitoring the type, amount and concentration of pollutants of the farmland soil can be obviously improved, and the land utilization rate and farmland ecological safety can be improved.

The invention discloses a method for repairing lead and zinc polluted soil by utilizing accumulator plants-ryegrass and pig manure. The method comprises the following steps of: mixing the pig manure with the lead and zinc polluted soil; planting the ryegrass; fully uniformly mixing the pig manure with surface layer polluted soil under the condition that the applied concentration of the pig manure is 20-80g/kg; absorbing lead and zinc in the lead and zinc polluted soil through the root parts of the ryegrass; transferring the lead and the zinc to the overground parts of the ryegrass; when the overground parts of the plants are mature and can be harvested, moving away the plants from the polluted soil so as to achieve the purpose of removing lead and zinc pollution from the soil. As the ryegrass is good in regeneration capability and high in growth speed and can be repeatedly harvested without complex management, the energy consumption is low, the operability is good, the ecological safety is high, the environmental physicochemical property cannot be destroyed, the secondary pollution cannot be caused, a soil structure cannot be destroyed and polluted, the fertility improvement capability cannot be influenced, and the repair expense is further reduced.

On the basic of theories such as landscape ecology and ecological service functions, methods such as a landscape pattern analytical method, an ecosystem service evaluation method and a landscape ecological function network simulation method are adopted, through determining technology of corridor and node positions, a heat island control pattern, a water resource protecting and flood detection pattern and a geological disaster safety protection pattern are overlaid, a critical area (such as an existing large-scale ecological plaque) and a critical node (such as an existing ecological plaque which needs to be reformed or newly built) in an ecological security pattern are judged, a critical position which needs to be ecologically built or adjusted and a sequence are obtained, the degree of importance of critical points can be calculated through plaque important indexes, integration and model optimization of technology of construction of the urban-rural integration ecological security pattern are carried out, and an ecosystem service and urban-rural spatial arrangement are linked.

The invention belongs to the technical field of water and soil resource information processing, and discloses an ecology-oriented water and soil resource space-time optimal configuration method. The method comprises the following steps of establishing an ecology-oriented water and soil resource configuration system by using a gray linear programming method; fusing the multi-source spatial data byadopting a method of analyzing a vector grid, and establishing a water and soil resource allocation model based on multiple spatial scales such as a pixel micro-unit, a basin ecological function partition, a regional administrative planning partition and the like; adopting the cellular automaton for simulating the specific distribution of the quantity ratio of water and soil resources in space. According to the method, the cellular automaton is used for simulating the spatial distribution condition of water and soil resources under multi-objective decision making, and organic combination of water and soil resource quantity matching and spatial distribution is achieved. The method has important practical significance in improving the comprehensive utilization efficiency of water and soil resources and promoting regional ecological safety and sustainable development.