34 results about "Introduced species" patented technology

The invention discloses a hydro-fluctuation belt wetland vegetation restoration proper species screening method. The method includes: investigating region vegetation, and preliminarily selecting species suitable for region vegetation restoration from the aspects of life form and growth form of species; adopting a soil seed bank germination experiment to screen to obtain omissive proper plants; inferring proper plants for vegetation restoration of a hydro-fluctuation belt according to vegetation investigation on the hydro-fluctuation belt and the soil seed bank germination experiment of the same; performing a waterlogging tolerance experiment on the proper plants, and screening proper species for region vegetation restoration; according to waterlogging tolerance and region hydrologic changing characteristics, arranging the proper species obtained by screening, and conducting practice demonstration of vegetation restoration. The method is conducive to preventing genetic drift caused by gene flow and maintaining a gene bank of local species stable, less prone to causing intrusion of foreign species and provides technical support and scientific guidance for large-area demonstration and popularization of vegetation restoration in regions like reservoir hydro-fluctuation belts, riparian zones and tidal flat wetland.

The invention provides a method for determining urban green space pest risk levels, which comprises the following steps: scoring a plurality of index layers of a pest source and acquiring the scores of the index layers, wherein the index layers comprise a plurality of specific risk evaluation indexes; calculating the scores of the index layers to obtain the score of a factor layer, wherein the factor layer comprises a plurality of evaluation factors consisting of a plurality of specific indexes; calculating the score of the factor layer to obtain the score of a program layer, wherein the program layer comprises a plurality of evaluation rules of the plurality of evaluation factors; calculating the score of the program layer to obtain the score of a target layer, wherein the index of the target layer is the comprehensive risk index of foreign species; and finally, determining the risk levels of the foreign species according to the calculation results. After the risk evaluation of foreign species, the method determines corresponding risk levels and determines the levels of the corresponding risk levels of the foreign species to determine whether manual interference is necessary, thereby ensuring the safety and controllability of organisms in urban green space.

The invention belongs to the field of ecological treatment, and particularly discloses a plant community configuration model and a slope protection vegetation planting method by utilizing native shrubs and grasses in an arid area. On the basis of mastering natural conditions of the arid area, substrate conditions of road slope and local ecological characteristics, and correctly identifying key factors restricting planting of plants on the slope, a configuration model is established through matching planting of different species, and substrate environment is manually regulated and controlled bycombining the slope protection vegetation planting method, so that the planting of local plants on the slope of the arid area is promoted, a stable vegetation structure is constructed, coverage of grass vegetation on the slope is improved, and soil and water loss is slowed down. The model and the method can solve problems of serious environmental factors in arid areas, difficult vegetation restoration, and hidden ecological safety hazards caused by introduction of a large number of foreign species on a side slope.

The invention provides a method for establishing an urban green space pest risk evaluation system, which comprises the following steps: quantitating an index layer and calculating the weight values of indexes, wherein the index layer comprises a plurality of specific indexes of a plurality of evaluation factors; calculating the index of a factor layer, wherein the factor layer comprises the plurality of evaluation factors; calculating the index of a program layer, wherein the program layer comprises a plurality of evaluation rules of the plurality of evaluation factors; and calculating the index of a target layer and determining risk levels, wherein the target layer comprises comprehensive risk index of foreign species. The method can recognize, evaluate and process uncertain events caused to urban green space ecological safety by the foreign species imported in an urban greening construction process and evaluate the comprehensive risk aroused by the foreign species.

The invention discloses a seed formula of vegetation restoration in dry and warm valley climate zones. The seed formula is formed by a basic formula and a function formula. The basic formula is composed of following components in percentage by weight: 10% of Elsholtzia capituligera, 10% of incarvillea arguta, 5% of vitex negundo, 10% of oriental arborvitae, 5% of caryopteris forrestii, 5% of rumex hastatus, 5% of Yunnan Schizachyrium scoparium, 5% of sophora viciifolia, 10% of pistacia weinmannifolia, 10% of Yunnan aquilaria sinensis and 25% of medium-clay loam; the function formula is composed of the following components in percentage by weight: 5% of bauhinia brachycarpa, 15% of ailanthus altissima (Mill.) Swingle var. sutchuenensis (Dpde) Rehd.et Wils, 10% of cupressus duclouxiana, 15% of phlomis betonicoides, 5% of nouelia insignis, 5% of bauhinia bohniana, 5% of rosa duplicata, 5% of clematis delavayi, 2% of ranunculaceae clematis rehderiana, 3% of Lancang glandular fruit, 3% of anemoclema glaucifolium (Franch.) W. T. Wang, 2% of Aristolochia delavayi var. micrantha, and 25% of medium-clay loam. According to the invention, native species are adopted to restore the local vegetation and flora, which is conducive to forming a plant community landscape coordinated with the local vegetation landscape, avoids the alienation, generalization and horticulture of the vegetation landscape in the ecological restoration area and prevents the invasion of harmful alien species.

The invention relates to an artificial wetland capable of strengthening a treatment effect of salt-containing wastewater by utilizing intertidal zone bottom mud and application and belongs to the field of environmental protection. The artificial wetland comprises a water inlet pipeline, a wetland main body and a water outlet pipeline, wherein the water inlet pipeline is located above the wetland main body; the water outlet pipeline is located below the wetland main body; the wetland main body comprises wetland plants and a wetland bed body; the wetland main body is a subsurface flow type artificial wetland; wetland plants are planted on the wetland bed body; the wetland bed body comprises a first sand layer, an intertidal zone bottom mud layer and a filtering layer in sequence from top tobottom; the filtering layer comprises a second sand layer, a gravel layer and a rough sand layer in sequence from top to bottom. The artificial wetland can cope with changes of the environment and pollution caused by introduced species; compared with the effect of a traditional single microorganism, the artificial wetland has a better COD (Chemical Oxygen Demand) removing effect and abundant microorganism diversity and salt-resisting species groups are guarantees of effect optimization.

The invention relates to a method of utilizing verbenaceae lippie to prevent and control weed in an orchard. The method includes: planting verbenaceae lippie in the orchard by means of cutting or broadcast sowing. The method is quite good in prevention and control effect, can make temperature difference change of soil small, is conducive to root system growth of fruiters and absorption of nutrientand has effect of reducing water and soil loss; verbenaceae lippie is adopted to avoid risk caused by introduction of alien species, and verbenaceae lippie has the advantages of low requirements on soil and high resistance to pest and disease, thereby having wider suitability.

The invention relates to the technical field of environmental protection, and further discloses a comprehensive treatment method for dealing with exotic species invasionin in reservoir areas. The comprehensive treatment method for dealing with exotic species invasionin in reservoir areas comprises the following steps: S1, determining characteristics of exotic invasive species, S2, manually or mechanically preventing and removing alternanthera philoxeroides on the ground surface, S3, preparing a chemical agent, S4, chemically preventing and removing alternanthera philoxeroides by using the chemical agent, and S5, organically integrating, coordinating and comprehensively treating alternanthera philoxeroides by using chemical prevention and treatment and mechanical prevention and treatment according to different growth states of alternanthera philoxeroides. According to the method, chemical prevention and treatment, biological prevention and treatment and mechanical prevention and treatment are organically integrated, coordinated and comprehensively controlled, and meanwhile, the respective advantages are utilized to make up for the defects of each other, so that the spreading of alternanthera philoxeroides can be effectively eradicated, and further, a mixture of fluroxypyr, glyphosate, and Nimbyaalternantherae has a synergistic effect on preventing and eliminating alternanthera philoxeroides.

The invention relates to an ultrasonic sea chest cavitation sterilization machine and an ultrasonic ballast water cavitation sterilization machine for a ship sea chest, a method for killing and inhibiting marine organisms by ballast water, and a system device, which are researched and developed for cross-sea propagation of harmful microorganisms, funguses and pathogens caused by injecting and discharging the harmful microorganisms, the funguses and the pathogens in the water at different places along with a ship, and cross contamination of a sea area caused by non-control discharge of the ballast water when the goods are loaded and unloaded and the seawater (or fresh water) are injected and discharged in running, anchoring and mooring processes of the ship; the intrusion of the foreign species can cause hazard to marine ecology, and the hazard is listed as one of four marine hazards by International Environment Fund (CEF). According to the invention, ultrasonic wave is made to a device to be connected to an inlet of the ship sea chest and a pipeline of the ballast water in series, and ultrasonic cavitation cell crushing can be carried out on the harmful microorganisms, the funguses and the pathogens in the seawater (or fresh water) by utilizing a function of ultrasonic wave for crushing the cells, so that the inactivating and sterilizing treatment effects can be realized, and the method can play the following roles that: 1, cavitation sterilization is carried out on the water entering into the sea chest through the ultrasonic sea chest cavitation sterilization machine, so that the cells are crushed, algae and shellfish microorganisms in a coarse filter of the sea chest are killed, and the possibility of blockage of the coarse filter of the sea chest and a water inlet pipeline can be reduced, thus the algae and shellfish microorganisms cannot produced and survived in a ballast water pipeline, a water discharge pipeline, a water pump and a filter and the pipeline is kept unblocked; and 2, ballast and discharge pipelines are internally connected with the ultrasonic ballast water cavitation sterilization machine in series, ultrasonic cavitation is carried out on the seawater (fresh water) entering into a ballast tank, so that the cells are crushed, and the residual algae and shellfish microorganism pathogens are inactivated and killed, thus the bacterium in the seawater (fresh water) into the ballast tank reach requirements of international maritime organization (IMO) International Ship Ballast Water and Sediment Control and Management Convention (latter called convention), and one of four marine hazards, that is to say, the intrusion problem of the foreign specifies, can be solved and eliminated. The invention provides guarantee of technical equipment for equipping ballast water equipments of all ocean going vessels before 2017 according to the requirement of the international maritime organization (IMO) convection.

The invention provides an ecological and environment-friendly herbicide based on sagittaria graminea. The sagittaria graminea is aqueous extract of sagittaria graminea. Gerbera jamesonii is taken as arecipient plant for researching the allelopathy of the aqueous extract of the sagittaria graminea for the recipient plant, it is discovered that different concentrations of the aqueous extract of thesagittaria graminea have different allelopathic effects on germination of Gerbera jamesonii seeds, the aqueous extract with mass concentrations of 0.05 g.mL<-1> and 0.025 g.mL<-1> promotes germination of the Gerbera jamesonii seeds, while the aqueous extract with mass concentrations of 0.1 g.mL<-1> 0.075 g.mL<-1> inhibits germination of the Gerbera jamesonii seeds. By adopting the aqueous extractof sagittaria graminea for eliminating or inhibiting the alien species Gerbera jamesonii, on one hand, invasion of the alien species is inhibited, on the other hand, weed control is realized by the plant preparation, and environmental pollution caused by use of a chemical herbicide and adverse impact caused by herbicide residues are avoided.

The invention provides a natural plant resource volatile mosquito and insect expelling and killing agent. Plant essential oil is extracted from natural plants in a Lingnan region; the plant resource volatile mosquito and insect expelling and killing agent is prepared from the following ingredients in a compounding mode: 10 to 30 percent of plant essential oil, 5 to 20 percent of ethanol, 0.1 to 2percent of 1,2-pentanediol, 0.1 to 2 percent of menthol, 0.1 to 2 percent of vitamin B1 and 44 to 80 percent of deionized water. The plants universally existing in the Lingnan region are used as the basis; the volatile ingredients of the plants are extracted for preparing the plant resource volatile mosquito and insect expelling and killing agent; the menthol and the vitamin B1 are also added formeeting the sensory requirements of user groups and the mosquito and insect expelling and killing synergistic effect; the plant essential oil and the ethanol have the certain characteristics of anticorrosion, antibiosis and the like; the addition of preservatives, antibacterial agents and the like with toxic and side effects on the human body is not needed; the natural resources are reasonably developed and utilized; the guide is provided for the effective control on foreign specie plants and the environment protection; the economic benefits and the social benefits can also be generated on thedevelopment of the Lingnan region; the preparation method is simple and feasible, and is applicable to large-scale and mass production.

The invention discloses a breeding method for vespa. The method comprises the steps of preparing vespa species or introducing species, collecting male and female bees, mating the male and female bees,making queen bees overwinter, training the overwintering queen bees, inducing the overwintering queen bees to make nests, conducting spawning, breeding first-batch foraging bees, breeding primary beecolonies, breeding standard bee colonies in wild mountain forests, training and breeding the forging bees into standard bee colonies, breeding the standard bee colonies, managing the standard bee colonies and scientifically taking the bees and bee pupae; before the overwintering queen bees are induced to make the nests, nesting boxes are prepared at first, each nesting box is a soil pit or a wooden box which is 60-80 cm high and then is back filled with soil with the height of 40-52 cm, each nesting box is separated into small soil pits or small wooden boxes per square meter through plastic breeding nets, the bred first-batch foraging bees are put into the small soil pits or the small wooden boxes, and then cover sealing, spawning, first-batch foraging bee breeding and primary bee colonybreeding are conducted. According to the method, the vespa is bred in the nesting boxes and separated by the plastic breeding nets inside, the mutual communication of smell is achieved, but the bees cannot enter the areas of other colonies for attack, and therefore the vespa can be bred.

The invention relates to a method for repairing zinc-contaminated water by use of aquatic plant water lily. The method adopts selection, pretreatment, adaptive growth, planting and testing to repair zinc-contaminated water; the adopted aquatic plant species is water lily which belongs to the native dominant plant and has the characteristics of long growth period, strong adaptation and excellent landscape effect and the like, the selected plant can effectively protect the native aquatic plants and can prevent introduced species from invasion, and the whole process is environmentally friendly and pollution-free and has the advantages of low expense, high treatment efficiency and strong operability; and the aquatic plants can form a waterscape, appropriate planting density is adopted to achieve the repairing purpose of the water contaminated by zinc with different concentrations, the water ecosystem is beneficially restored and remarkable social and ecological benefits are achieved.

The invention discloses a method for comprehensively preventing and controlling alien species alternanthera philoxeroides, which specifically comprises the following steps of: constructing large emergent aquatic plants in a wetland bank zone marsh area in which the coverage of an alien species alternanthera philoxeroides invasion area is more than 70% and the water depth is less than 30cm; according to the method, alligator alternanthera is planted in a wetland where the alligator alternanthera grows according to the flooding condition of emergent aquatic plant growth, the emergent aquatic plants are selected from silvergrass, reed, wild rice and lotus with the flooding condition that the water depth is 0-220 cm, the photosynthesis of alien species alligator alternanthera is inhibited through indigenous planting of large emergent aquatic plants including silvergrass, reed, wild rice and lotus, the growth of alien species alligator alternanthera is inhibited, and the growth of the alien species alligator alternanthera is inhibited. The utilization of soil nutrient resources and water resources is reduced, so that the aim of controlling alien species Alternanthera philoxeroides is gradually achieved.

The invention discloses a foreign species monitoring system for cross-border mails. The foreign species monitoring system comprises an authentication system, an identification device and a supervisionsystem, the authentication system is used for authenticating the input interception information and the scanning proof file and obtaining authentication identity information terminal data; the identification device is used for storing foreign species data and interacting and complementing the foreign species data with a cloud server database to obtain animal identity information terminal data; to-be-verified quarantine auditing data are obtained by authenticating the identity information terminal data and the animal identity information terminal data, and the supervision system is used for quarantine auditing whether the to-be-verified quarantine auditing data are qualified; binding a monitoring result terminal of the quarantine audit data to an online shopping website and generating a supervision system database terminal; according to the method, a monitoring system of an interactive technology is formed by supervision and a network system, transaction is prevented while a supervision effect is achieved, the whole ecological system in China is protected from greater threats and damages, and huge economic loss in China is avoided.