13 results about "Alien species" patented technology

The invention discloses a method for killing, preventing and controlling alien species ampullaria gigas in a riverway, and relates to the technical field of alien species prevention and control. According to the distribution position of the detected ampullaria gigas, a plurality of positions where the number of the ampullaria gigas is large are selected for putting trapping cages, and bunchy aquatic plants are bound in the trapping cages through ropes; and feeding a certain proportion of natural enemy organisms of the ampullaria gigas into the trapping cage. The position, number and distribution of the ampullaria gigas are accurately recognized by using the unmanned aerial vehicle carrying the laser radar, the cost effectiveness is good, black carps are accurately put according to the volume of the trapping cage, resource waste caused by blind putting is avoided, the cost of the trapping cage and the bait is low, the overall cost is effectively controlled, natural enemies are put after trapping, the ampullaria gigas capturing and killing efficiency is greatly improved, and the economic benefit is high. The water quality and the aquatic plants are monitored regularly, the ecology is restored in time, the ecological balance recovery of the river channel is powerfully promoted, and a scientific, efficient and environment-friendly solution is provided for prevention and control of the ampullaria gigas.

The invention discloses an alien species intrusion detection system and method, and belongs to the technical field of biological control. The system comprises a multi-dimensional signal sensing module, a characteristic spectrum construction module, an intelligent identification and comparison module, a dynamic tracking and positioning module, an abnormity early warning research and judgment module and a cooperative linkage response module, an air-ground-water three-dimensional monitoring network is constructed, and non-contact accurate detection is realized through cooperation of multiple sensors. Specific insects can be accurately trapped, tree insects can be automatically collected and recognized, the insect sound wave monitor can remotely and early warn insect group activities, a three-level progressive feature processing framework is adopted, multi-source data are analyzed in a unified mode, high-precision recognition is achieved, multi-mode insect feature vectors are extracted, the large-scale insect screening requirement is met, and the method is suitable for large-scale insect screening. By means of a sensor cooperation and geographic information fusion technology, a multi-dimensional target motion trail model is constructed, insect trails are updated in real time, mapped to a geographic coordinate system and superposed with an ecological layer, and dynamic information and a spatial decision basis are provided.

AMPHIBIOUS VEHICLE FOR URGING INVASIVE PLANTS Amphibious vehicle (100), for maintaining a wetland (P) in particular by removing an invasive exotic species (IEE) such as invasive aquatic plants or the like, comprising a motorized amphibious tractor (10) and a pulling means, said vehicle further comprising a floating trailer (30) towed by the tractor (10) and comprising a bucket (31) for collecting the pulled-up plants, the pulling means being a telescopic crane (20) equipped with a grapple (21) at its free end, said grapple being configured to allow both the gripping and pulling of invasive plants, so as to place them in the bucket (31). Figure for the abstract: figure 1

The invention provides an alien invasive species ecological economic hazard assessment method based on a control experiment, and belongs to the technical field of ecological economic loss investigation and assessment. The method comprises the following steps: in response to an evaluation request, creating a control experiment group and a field observation group through a block random allocation algorithm; obtaining experimental data from the control experimental group and observation data from the field observation group; generating an ecological economic index matrix according to the experimental data and the observation data; generating a density-hazard response curve according to the ecological economic index matrix; and evaluating the ecological economic harm of the alien invasive species according to the density-harm response curve. According to the method, the ecological economic hazards of alien invasive species can be determined, and an alien invasive species ecological economic hazard evaluation platform for service control experiments can be constructed. The coverage degree and accuracy of the obtained data for evaluating the ecological economic hazards of alien invasive species can be improved, and the reliability of the evaluation result is enhanced.

The invention discloses a method for continuously removing acacia mangium, which comprises the following steps: S1, in March, planting a large amount of shade-tolerant pteridium aquilinum ground covers under an over-mature acacia mangium forest to form a first separation net; s2, a litter layer with the thickness not smaller than 8 cm is reserved or manually laid under the acacia mangium overmature forest, and a second separation net is formed; s3, in September to October, carrying out strip-shaped felling on the acacia mangium overripe forest, then planting arbors and shrubs with large crown breadths, and ensuring the shading degree of 30% or above. According to the method, on the basis of a triple germination resistance technology of physical isolation, allelopathy inhibition and light environment regulation and control, after an overmature acacia mangium forest is cut down, seeds, falling on the ground, of the acacia mangium cannot germinate and are developed into dominant communities, so that the purpose of thoroughly removing the foreign acacia mangium is achieved, and the removal rate can reach 96.3%.

This invention relates to the field of road landscape planning technology, and more particularly to a road landscape planning method, apparatus, electronic device, and storage medium. The method first obtains multiple first node vectors; then, with the goal of minimizing intra-class differences and maximizing inter-class differences, the multiple first node vectors are classified, and the road is divided into multiple first ecologically sensitive sections based on the classification results; next, for each first ecologically sensitive section, a viewpoint analysis is performed using a geographic information system to obtain the road landscape planning scope, and plant diversity analysis is performed based on the road planning scope to obtain multiple ecological plots; finally, for each ecological plot, landscape planning is carried out based on ecological base data and sensitive characteristics. This invention defines the planning scope based on GIS viewpoint analysis, combines plant diversity clustering with plot adaptation, prioritizes the preservation of native vegetation, avoids the invasion of alien species, and maximizes the protection of the integrity of the surrounding ecosystem.

The application discloses an alien species invasion detection system and method, and belongs to the technical field of biological control. The application comprises a multidimensional signal sensing module, a feature spectrum construction module, an intelligent identification comparison module, a dynamic tracking positioning module, an abnormal early warning research and judgment module and a collaborative linkage response module. The application constructs a "space-ground-water" three-dimensional monitoring network, realizes non-contact precise detection through multi-sensor collaboration, can precisely trap specific insects, automatically collects and identifies tree insects, and the insect sound wave monitor can also remotely and early warn insect population activities. A three-level progressive feature processing architecture is adopted, multi-source data is uniformly analyzed, high-precision identification is realized, multi-modal insect feature vectors are extracted, large-scale insect screening requirements are met, and with the aid of sensor collaboration and geographic information fusion technology, a multidimensional target motion trajectory model is constructed, insect trajectories are updated in real time, are mapped to a geographic coordinate system and are superimposed on an ecological layer, and dynamic information and spatial decision basis are provided.

The invention discloses an alien species intrusion trend analysis method, device and equipment and a storage medium, relates to the technical field of biological control, and discloses an alien species intrusion trend analysis method comprising the following steps: obtaining alien species epidemic area historical data; performing data preprocessing on the alien species epidemic area historical data to obtain preprocessed epidemic area data; determining alien species diffusion information and a potential risk area according to the preprocessed epidemic area data; obtaining alien species epidemic area prediction data according to the preprocessed epidemic area data and a long-short-term memory model; and determining alien species invasion trend information according to the alien species diffusion information, the potential risk area and alien species epidemic area prediction data. The invasion trend of foreign species can be accurately predicted, so that early warning and scientific prevention and control of foreign species are realized.

This invention discloses a biological alternative control method for suppressing the invasion of *Chrysanthemum indicum*, belonging to the field of biological control technology. The method involves intercropping *Artemisia annua* and *Euphorbia milii* in ecosystems where *Chrysanthemum indicum* has already invaded or is susceptible to invasion, thereby inhibiting the growth and development of *Chrysanthemum indicum* and achieving ecosystem restoration. Experimental results show that *Artemisia annua* and *Euphorbia milii* are capable of playing a key role in ecosystems where *Chrysanthemum indicum* is susceptible to or has already invaded. In the dry spring of northern regions, intercropping *Artemisia annua* and *Euphorbia milii* effectively inhibits the growth of *Chrysanthemum indicum* and allows it to occupy its ecological niche, significantly reducing the plant height, biomass, and number of flower buds. This invention provides a solid foundation for the alternative control of the invasive alien species *Chrysanthemum indicum* and the restoration and sustainable management of damaged ecosystems.

The invention belongs to the technical field of molecular biology, and particularly relates to a method for quantitatively detecting Beijing alien species odontobutis potamophila based on an environmental DNA (deoxyribonucleic acid) technology, especially a qPCR (quantitative polymerase chain reaction) method. According to the method for quantitatively detecting the odontobutis potamophila by the qPCR method based on the environmental DNA technology, the species can be accurately identified conveniently by designing the specific primers of the odontobutis potamophila based on the environmental DNA technology, and meanwhile, targeted quantitative monitoring and biological investigation of the odontobutis potamophila are realized by adopting the qPCR quantitative technology.

The invention discloses a bare high and steep slope restoration plant community construction method, which comprises the following steps: selecting sample plots with different restoration degrees in an area where a target slope is located, and performing succession community feature investigation in the target area; performing region division and succession stage division on the selected sample plots with different recovery degrees; establishing a species fitness comprehensive model, and screening matched species; determining an indigenous plant combination strategy in each succession stage; planting the indigenous plants in succession stages, and carrying out acceptance assessment. According to the method, plants are configured by stages according to the natural succession law, community degradation caused by species mismatch is avoided, and the requirement for later manual intervention is reduced; according to the method, accurate model selection is carried out according to microenvironment differences between surface soil and cracks, and the adaptability of plants to extreme habitats is greatly improved; according to the method, indigenous plants serve as cores, the invasion risk of alien species is avoided, the fusion degree with a local ecological system is high, and the long-term maintenance cost is remarkably reduced.

The present application discloses an evaluation method and device for the Giant Panda National Park to resist the invasion of alien species, relating to the technical field of ecological protection, aiming to solve the technical problem that the prior art lacks an evaluation method for the method of the Giant Panda National Park to resist the invasion of alien species. The method includes: after resisting the target alien species, obtaining and based on the real-time video data of the Giant Panda National Park, obtaining the attention weight vector of the target alien species; constructing context features based on the analysis of the influencing factors of the historical growth of the target alien species; constructing the growth state characteristics of the target alien species group, obtaining the historical alien species invasion information and the corresponding measure decisions; obtaining the historical information experience feature vector based on the historical alien species invasion information and the measure decisions; and evaluating the method of the Giant Panda National Park to resist the invasion of alien species based on the growth state characteristics of the target alien species group and the historical information experience feature vector.

The present invention discloses a data-driven alien invasive species supervision method and supervision system, which relates to the field of data processing technology, including: establishing a species label library for the target supervision area, performing dependency identification, and outputting a species dependency network; when an alien invasive species is monitored, obtaining the invasive species information; downloading a trained chain impact analysis model, combining the species dependency network with the invasive species information to perform chain analysis, and obtaining chain impact indicators, wherein the direct impact indicator is the degree of impact of the invasive species information directly causing the population reduction in the species label library, and the indirect impact indicator is the degree of impact of the directly reduced population causing the reduction of other populations; uploading the chain impact indicators to the invasive species supervision platform, and performing alien invasive species cleaning according to the cleaning equipment. The present invention solves the technical problem of poor efficiency in the existing technology for invasive species control, and achieves the technical effect of efficient invasive species control.