44 results about "Alien species" patented technology

The invention discloses an unmanned machine-based wild animal community condition monitoring method. The unmanned machine-based wild animal community condition monitoring method not only can monitor the distribution and growth conditions of wild animal community, but also can track and monitor endangered and critically endangered animals and alien species, can take the spotlight in the field of wild animal resource protection, achieve favorable effects in the fields of investigation and evidence collection, prewarning and frightening, collaborative tracking and the like by full verification at the early-stage testing step, prevents limits of original manual patrol, lowers the cost of monitoring and patrol equipment greatly, and has the characteristics of wide monitoring range, species detection diversity, rapid and timely resource supply and the like.

The invention relates to a method using native landscape plants to restore return-land-to-lake wetland soil; phytocoenosis main collocation methods comprise the following 4 modes: 1, landscape plant arbor-shrub-grass interbreed mode, i.e., overstory arbor+middle lamella arbor+ground cover plants; 2, landscape plant arbor-shrub interbreed mode, i.e., overstory arbor+middle lamella arbor+original ground cover plants; 3, shrub-grass interbreed mode, i.e., middle lamella arbor+ground cover plants; 4, ground cover plant single mode, introduction ground cover plants+original ground cover plants. The method introduces fast-growing native landscape tree species so as to fast adapt to the growing environment, thus forming landscape, becoming colony advantage species, and controlling alien species invasion; the method can improve farmland soil physical composition and nutrition status, can eliminate (degrade) residual poisonous and harmful pollutants, thus realizing soil pollution purification under nature conditions, realizing self-restoration, i.e., expressing soil-plant system degrading purifying effect.

The invention discloses a remediation method for heavy-metal-contaminated soil and relates to the field of ecological environment remediation. The method comprises the steps that ragweed is planted on the heavy-metal-contaminated barren land; and the ragweed is reaped, transferred, incinerated and subjected to heavy metal extraction sequentially in the period before the start of the flowering period of the ragweed. According to the remediation method, the heavy-metal-contaminated soil is remedied through the ragweed, the ragweed grows fast in the growing period and branching period, and the ragweed has the high absorption function and enrichment function on the heavy metal pollution in the soil; and the ragweed has the beneficial effects of being high in growth speed, large in biomass, high in adaptability, low in cost, wide in distribution and the like, a lot of lead, cadmium and the like in the soil, especially in the overground part, can be transferred into the plants, the ragweed is reaped and transferred manually before the flowering period and is incinerated, then heavy metals are extracted, and therefore the soil pollution such as lead and cadmium is remedied, and the higher economic value and economical environment value are provided for the effective utilization of heavy metal soil remediation by the plants and invasive alien species.

The invention discloses a method for restoring degraded wetland vegetation by improved wetland soil seed banks. The method comprises the following steps: 1) according to a principle of adjusting measures to local conditions, selecting a soil seed bank from natural wetland seed banks, wherein the seed density of the seed bank is not less than 5000 grains.m<-2>; 2) mixing soil seed banks with different sources, or adding naturally harvested seeds; 3) preparing a biological rhzomorph; 4) adding the biological rhzomorph obtained in the step 3) to obtain an improved soil seed bank; and 5) covering improved seed bank soil on a wetland with degraded vegetation by adopting an exotic soil method, thereby forming vegetation by natural germination. The method for restoring the degraded wetland by using the soil seed banks, disclosed by the invention, has the following advantages: 1) materials are easy to obtain, the cost is low, and the operation is simple and feasible; 2) a wetland succession law is followed, the degraded wetland vegetation is restored quickly and naturally, and the invasion of alien species is controlled; and 3) multiple species coexist, the structure is stable and can realize self-renewal, and ecological landscapes are rich.

The invention discloses a method for rapid recovery of plants in a barren mountain. The method comprises steps as follows: A, a local natural forest is searched; B, sample land is selected and divided into blocks with the size being 5m*5m; the variety and the size of plants in each block and common arbors in each block are researched; C, the to-be-recovered barren mountain is divided into grids with the size being 5m*5m, and the variety of plants in each block on the barren mountain is clarified by comparison with that in the blocks of the natural forest; D, different types of plants are planted in different blocks; the variety of the plants planted in each block is determined according to the advantageous community of the researched outdoor natural forest; E, 2-6 years later after planting, complementary planting is performed for dead seedlings and saplings; 6 years later after planting, branches of the larger plants are pruned to provide space for growth of other species, non-local species are selectively cut, and damage by alien species is avoided. The method is economical and convenient, the defect of single man-made forest or planting type is overcome, and natural updating and biodiversity protection of the forest are realized.

The invention discloses a security alarm method based on video recognition. The method comprises an acquisition step of acquiring a video captured by a camera, wherein the video comprises multiple frames of video images, a first marking step of performing feature recognition on target objects in the video images and marking a target object which is not recognized to obtain a marker, and an early warning step of judging whether the distribution density change of the markers of adjacent frame video images exceeds a first preset value and carrying out early warning if so. The invention also provides a security alarm system based on video recognition and a computer-readable storage medium. The invention provides the method, the distribution density change of the markers in a recognition area is judged to judge the presence or not of invasive alien species, a technical problem of judging all invasive alien species can be covered, and the cost of the technical implementation is low.

The present invention relates to a Corynebacterium sp. strain having an activity of NADP-dependent glyceraldehyde-3-phosphate dehydrogenase and an improved productivity of L-lysine, and a method for producing L-lysine using the same. According to the Corynebacterium sp. strain of the present invention and the method for producing L-lysine using the same, L-lysine can be produced in a high yield.

The invention discloses a purse seine partitioning device applied to lake reservoir partition ecosystem restoration. The purse seine partitioning device applied to lake reservoir partition ecosystem restoration comprises a purse seine and a nylon soft net, wherein the purse seine is arranged at the dividing position of an ecosystem restoration region and a non-restoration region; a gabion is arranged at the lower end of the purse seine; a first floating ball is arranged at the upper end of the purse seine; and the nylon soft net is paved at the bottom, extending from the dividing position of the ecosystem restoration region and the non-restoration region to the non-restoration region, of the lake reservoir. The purse seine partitioning device applied to lake reservoir partition ecosystem restoration, provided by the invention, insulates the ecosystem restoration region and the non-restoration region, so that the ecosystem restoration region is not invaded by alien species and high water quality of the ecosystem restoration region is guaranteed.

The invention relates to a new application of the extract of chrysanthemum chrysanthemum in the field of herbicides. The herbicide EC made by using this product is diluted with water and then sprayed, which is effective against crabgrass (Digitaria sanguinalis L.), retroflexus amaranthus (Amaranthus retroflexus L.), barnyardgrass (Echinochloa crus-galli L.), Chenopodium album L. ) and other weeds have a good control effect. The application of the chrysanthemum chrysanthemum extract in herbicides of the present invention turns waste into treasures of alien invasive species that would have cost a lot of manpower and material resources to remove, and finds out a new way of effective utilization. By passively removing chrysanthemum chrysanthemum, it becomes It has become a reasonable control and development and utilization.

The invention provides a small aquatic ecosystem simulator. The small aquatic ecosystem simulator comprises a square opening lower box, wherein the lower box is arranged on a support; a partition with holes is arranged in the lower box; a square opening upper box is arranged in the lower box and is positioned above the partition with the holes; a square table with a round hole is arranged on the upper box; the round hole penetrates in the bottom of the upper box; and a rubber plug or a rubber cover is placed in the round hole of the square table in a matching manner. Manufacturing materials of the small aquatic ecosystem simulator are easy to obtain; the small aquatic ecosystem simulation is convenient to operate and is multifunctional, and can be used for various experiments; and various environmental problems such as algal blooms, flooded vegetations, biotic intrusion (interaction of alien species and native species) and the like in a real aquatic ecosystem can be simulated.

Disclosed is a screening method for a fish functional indicator species in a river ecosystem. The method comprises the following steps that S1, sampling sites are determined in the river ecosystem, and fish organisms at the sampling sites are collected and identified; S2, grouping is conducted according to the environment type, wherein the sampling sites with similar habitats are classified into one group; S3, the indicator species is screened out, wherein the average abundance and relative occurrence frequency of each type of fishes in each group are calculated, then the indicator value of each type of fishes in each group is obtained according to the average abundance and the relative occurrence frequency, the species with the largest indicator value in each group is screened out, and the fishes with the indicator value greater than 55% are screened out as the indicator species; S4, the indicator species is determined, wherein the species screened out in S3, species habits and habitats thereof and whether or not the species is an alien species are judged to determine the indicator species. The fish indicator species screened out by means of the method can be used for subsequent monitoring of the pollution status of the river environment, and an effective measure is formulated in time for the pollution status.

The invention relates to a method for preparing a photocatalytic biochar composite material by using eichhornia crassipes to accumulate nano-zinc oxide. The method for preparing the photocatalytic biochar composite material by using the eichhornia crassipes to accumulate the nano-zinc oxide comprises the following specific steps that (1) the eichhornia crassipes growing in a natural lake is selected, washed by distilled water and placed in a culture solution containing the nano-zinc oxide for cultivation, the eichhornia crassipes is taken out and washed after cultivation for 15-45 days, and the eichhornia crassipes is subjected to drying and smashed for standby application; and (2) the smashed eichhornia crassipes is calcined under an inert atmosphere, and cooling and processing are carried out to obtain the nano-zinc oxide-biochar photocatalytic composite material. According to the method for preparing the photocatalytic biochar composite material by using the eichhornia crassipes toaccumulate the nano-zinc oxide, the eichhornia crassipes is used as a biochar source, and the eichhornia crassipes is inundated in many eutrophic waters in recent years as an alien species. The methodfor preparing the photocatalytic biochar composite material by using the eichhornia crassipes to accumulate the nano-zinc oxide turns waste to wealth, resource utilization of the eichhornia crassipesis realized, the forbidden bandwidth of nano-zinc oxide semi-conductor can be suitably reduced, so that the material is easier motivated by an ultraviolet lamp, and the photocatalytic effect of the material is improved.

The invention belongs to the field of ecological systems, and particularly relates to a method for evaluating the influence of human interference on the biological diversity of a forest ecological system. The method comprises the following steps: S1, measuring the quantitative data of a landscape pattern influence index J, an alien species invasion index I, a species specificity index U and a substance energy flow influence index F; s2, substituting the data obtained in the step S1 into Bi = J * 0.5 + F * 0.3 + I * 0.05 + U * 0.15, and determining the influence condition of artificial interference on project development according to the value of Bi; the invention provides a method for evaluating the influence of man-made interference on the biological diversity of a forest ecosystem, and aims to solve the problem that the influence of man-made interference on the forest ecosystem is very common, such as forest destroying and waste making, mountain closing and forest raising, afforestation, planning and construction of various artificial projects in a forest and the like. The problem that human interference has positive and negative influence on the biodiversity of a forest ecosystem, but the influence lacks a general quantitative evaluation method is solved.

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 discloses a seed formula for warm-humid climate region vegetation restoration. The seed formula comprises a basic formula and a functional formula. The basic formula comprises, by weight, 20% of tomicus piniperda, 20% of alnus nepalensis, 10% of coriaria sinica maxim, 20% of anaphalis contorta and 30% of medium and clay loam. The functional formula comprises, by weight, 5% of pterocarya delavayi, 3% of sutchuanensis var. gongshanensis, 2% of Cephalotaxus fortunei var. alpine, 3% of alstonia scholar, 5% of viburnum cylindricum, 2% of viburnum betulifolium, 2% of manyseeded euptelea, 3% of sorbus pohuashanensis, 5% of ligustrum quihoui, 7% of hypericum bellum, 1% of rosa glomerata, 2% of cotoneaster pannosus, 3% of cirsium eriophoroides, 9% of eulalia speciosa (Debeaux), 9% of erianthus fulvus, 9% of swertia macrosperma and 30% of medium and clay loam. Local species are used for restoring local vegetation and floras, flora landscapes coordinated with the local vegetation landscape are formed easily, dissimilation, generalization and gardening of the vegetation landscape in an ecological restoration region are avoided, and invasion of harmful alien species is prevented.

The invention relates to the technical field of aquatic plant planting, in particular to planting device and grouping system using lake deep-water submerged plants to replace alien species. The planting device and grouping system comprises an aquatic plant, planting cotton, a planting ring and blind holes, wherein the aquatic plant is arranged inside the planting cotton and connected with the samein a squeezing manner; the planting cotton is located inside the planting ring and connected with the same in a nested manner; a planting clamp opening is integrally arranged inside the planting cotton; the blind holes are located in the outer wall and the inner wall of the planting ring and integrated with the planting ring. By structure improvement and combination with the prior art, the planting device is excellent in structure, reliable in work and high in planting survival rate, the problems of an existing device are solved, the defects of the existing device are overcome, and the planting device and grouping system are high in practicality.

The invention relates to a qualitative detection method for identifying species by using a molecular biological technique, and in particular relates to a PCR identification method for paralichthys olivaceus and germ plasm of affinis alien species of paralichthys olivaceus. Three specifically marked primers F, R1 and R3 are adopted to amplify mitochondrial DNA genes of paralichthys olivaceus and affinis alien species paralichthys dentatus of paralichthys olivaceus, and the paralichthys olivaceus is distinguished from paralichthys olivaceus according to amplified specific fragments. By adopting the method, a rapid, economic and reliable molecular biological technique is provided for seedling qualitative identification of paralichthys olivaceus and paralichthys dentatus which cannot be morphologically identified in the early development period, intelligent support is provided for enhancement and releasing identification and alien species invasion prevention of paralichthys olivaceus seedlings, and meanwhile, the quality detection development of the bastard halibut seedling industry is accelerated.

The invention relates to a method for establishing biodiversity in rivers and lakes, which comprises the following steps of: selecting key species and key points of a recovery area; the key point is that natural regression and enrichment of key species are promoted through a combined technology of dam field, water quality improvement, bottom mud diversity improvement, putting of a porous material adsorbed with a microbial agent, original living sludge and algae species to construct a biological bed and underwater habitat, small-range biological diversity is formed, and large-scale development of biocenosis is controlled; then, the key point is used as a biological source, water quality improvement, alien species management and control and overflow organism expansion and ecological succession of the whole restoration area are matched, water area ecological restoration can be more purposeful, the habitat is continuously used as a species source, a large number of overflow organisms are continuously transformed and restored, and the ecological restoration effect is achieved. The water ecological condition of the whole restoration area is improved through radiation, the biodiversity of the whole restoration area is restored, and the method can be applied to river and lake water quality improvement, water body environment improvement and water area biodiversity restoration.

The invention relates to a method for culturing honeysuckle, which comprises specially steps: soil preparation: wide rows and narrow rows are alternately arranged to form row pitches, the widths of the wide rows are 170-200cm, the widths of the narrow rows are 50-70cm; delivery pipes are paved between the narrow rows; selection of strong sprout seeds: seedling heights of selected strong sprout seeds which are bigger than 0.38m, the basal diameters of the selected strong sprout seeds are bigger than 0.015m, reserved lengths of main roots are bigger than 0.155m, and the number of side roots is bigger than 16; colonization: hole spacing for seeding is 25-40cm, and single holes are planted with single plants; fertilization and water delivery; field management; shaping and trimming of tree bodies; and control of alien species and prevention of pests. The method for culturing the honeysuckle adopts a method that a narrow row is arranged between two rows, artificially makes edge advantages of plants, improves transmittance between honeysuckles, improves photosynthetic efficiency, is beneficial for topdressing, water delivery and harvesting of honeysuckle plants, is beneficial to evenly apply nutrients and adsorb the honeysuckle, reduces pressure of wind to plants, and improves yield of the honeysuckles.

The invention belongs to the technical field of ecological environment engineering, and in particular relates to a restoration method of subalpine forest grass soil under the birch forest in Changbai Mountain. The invention achieves the purpose of restoring the subalpine forest grass soil under the Changbai Mountain betula forest through methods such as artificial soil synthesis and adjustment, soil seed bank construction, soil protection, and extermination of alien species in the soil. The method is simple, easy to popularize, and can obtain good ecological benefits.

The invention relates to a cross-border alien species risk grade determination and intelligent identification method and system, and the method comprises the steps: carrying out the preprocessing of the taxonomy information of all known cross-border alien species, and building a cross-border alien species risk grade database according to the preprocessed data; based on the established cross-border alien species risk level database, extracting taxonomic information of known cross-border alien species and risk level information corresponding to the taxonomic information, and carrying out solving according to the extracted related information and parameters in the established Bayesian discrimination function; preprocessing taxonomy information of a to-be-identified cross-border species, inputting a processing result into a Bayesian discrimination function to obtain a risk level assessment result of the to-be-identified cross-border species, storing related information of the to-be-identified cross-border species into a risk level database, and optimizing the Bayesian discrimination function. The method can be widely applied to the field of cross-border alien species grade judgment and intelligent identification.