164 results about "Salt marsh cordgrass" patented technology

The invention belongs to resource utilization of biomass, and in particular relates to a method for producing biochar from invasive plants and greening garbage. The utilized raw materials are biological waste organic matters including Spartina alterniflora, fallen leaves, branches and trunks. The method comprises the steps of removing roots of Spartina alterniflora, pulverizing after cleaning and drying Spartina alterniflora with the greening garbage; mixing the obtained biomass powder by a certain mass ratio to obtain mixed powder, performing pyrolysis under nitrogen protection at 300-600 DEG C for 1-4h, cooling to room temperature, grinding and sieving; washing the carbonized product with HCl/HF at a volume ratio of 1:1, then washing to a neutral pH with distilled water, and drying to obtain the noval biochar product. By using Spartina alterniflora and the greening garbage with a high carbon content as the raw materials, the preparation method overcomes the disadvantages of seasonality and periodicity of the raw materials and is simple and easy in implementation and low in cost, and the prepared product has good adsorbability and wide applications, realizes the resource utilization of the invasive plants and the greening garbage and achieves favorable ecological, social and economic benefits.

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 relates to a method of controlling the invasion of spartina alterniflora and restoring the ecological environment of mangrove by adopting the sonneratia apetala. The method is characterized by the steps: (1) pretreating the tidal flat of the spartina alterniflora invasion according to the requirement; (2) preparing the nursery stock of the sonneratia apetala; (3) planting the nursery stock of the sonneratia apetala according to the site condition and the thickness of the spartina alterniflora; (4) supporting and fixing the planted nursery stock; (5) pruning the undergrowth spartina alterniflora and planting the native mangrove after the crown closure and the fade-away or the complete fade-away of the spartina alterniflora. The spartina alterniflora starts the crown closure after a plantation of 1-1.5 years, the native mangrove including bruguiera gymnorrhiza and kandelia candel in the undergrowth of the spartina alterniflora can be planted after the sonneratia apetala gradually recesses to promote the formation of the community of rich biodiversity. The method adopts the fast-growing pioneer species of the sonneratia apetala to compete with the spartina alterniflora for fertilizer, water and sunlight, so as to cause the spartina alterniflora decline or death. The adopted sonneratia apetala has long growth period, large biomass, high stress resistance, easy plantation and good weed-suppressive effect.

The invention provides a spatial distribution acquiring method for spartina alterniflora in a northern sea area of Guangxi. The method comprises the steps of establishing remote sensing interpretation tag libraries of spartina alterniflora and other typical land features in the northern sea area of Guangxi; leading in a shot remote sensing image, wherein the remote sensing image is a satellite or unmanned aerial vehicle remote sensing image which is shot during falling tide and has the spatial resolution of smaller than 2m; delimiting the growth range of the spartina alterniflora according to the living condition information of the spartina alterniflora, and cropping the remote sensing image; interpreting the cropped remote sensing image according to the remote sensing interpretation tag libraries of the spartina alterniflora and other typical land features, and calculating the area to obtain the spatial distribution of the spartina alterniflora in the northern sea area of Guangxi. According to the invention, the traditional artificial ground survey way is replaced with an image analyzing and processing technology, so that a great number of labor and materials are saved, the measuring precision is improved, the measuring efficiency is increased, and the prevention and control costs are reduced.

The invention discloses a preparation method of Spartina alterniflora activated carbon, which can be used for treating cadmium wastewater. The method comprises the steps of oven-drying Spartina alterniflora stem and pulverizing; extracting the pulverized Spartina alterniflora powder with 0.1-10% of sulphuric acid solution for 1-10 hours; filtering the extracted solid-liquid mixture, and immersing the filter residue in phosphoric acid solution for 6-30 hours; oven-drying the immersed phosphoric acid-Spartina alterniflora mixture, activating by calcination at 400-700 DEG C under N2 as a protective gas for 0.5-10 hours to obtain activated carbon powder; and washing the obtained activated carbon powder and pulverizing. The inventive preparation method removes the interference of a large quantity of salts, and obtains the surface functional groups-enriched activated carbon product with yield of 42-48%. The obtained activated carbon can be used for treating cadmium wastewater with adsorption capacity in the range of 11-48.25mg/g, which is much higher than that of common commercial activated carbon. The obtained activated carbon takes full use of waste and creates great economic benefit and good social and environmental benefits.

The invention provides a method for managing spartina alterniflora. The method comprises the following steps of cutting off the spartina alterniflora; turning over intertidal zones; and planting embryonal axes of kandelia candel. Management on soil, with the depth of 0-20cm, for the spartina alterniflora is replaced by cutting off the spartina alterniflora, turning over the intertidal zones and planting the kandelia candel; the organic matter content and the N (nitrogen) content of the soil are obviously increased; the salinity of the soil is obviously improved by the high-density kandelia candel; pH (potential of hydrogen) of the soil is reduced, and is continuously reduced along with increasing of the density of the kandelia candel; influence on the P (phosphorus) content of the soil is quite low; the organic matter content of the soil with the depth of 20-40cm is increased, and is positively correlated with the density of the kandelia candel; the N content, the P content and the pH of the soil are reduced; and the pH is continuously reduced along with increasing of the density of the kandelia candel. After the kandelia candel is planted for one year, the density and the biomass of large benthonic animals are increased; and the density and the biomass of polychaetes animals, crustacean animals and other animals and the biomass of mollusk are improved. The method can be effectively used for managing the spartina alterniflora.

The present invention belongs to the field of ecological engineering technology, and provides a method for controlling breeding potential of adventitious species huhuami waterweed. Said method can overcome all the defects or existent control methods and can obtain the optimization and unification of economic benefits, ecological benefits and social benefits.

The invention discloses a spartina alterniflora physical treatment and sand beach recovering method which includes the steps of firstly, manually or mechanically cutting spartina alterniflora to leave stubbles lower than 5cm; secondly, fixing a mesh shading mulch above the cut area, and allowing the mesh shading mulch to be close to the ground; thirdly, opening part of the mesh shading mulch, and digging out spartina alterniflora root systems to determine root system death; fourthly, recycling the mesh shading mulch; fifthly, recovering a clean sand beach after natural sea water washing. The method is low in cost, fast in achieving the required result, strong in recovering purpose and free of environmental pollution.

The invention relates to a DNA molecular marker method for identification of the alien invasive species Spartina alterniflora population. The method includes: conducting high-throughput transcriptome sequencing and screening to obtain a target gene, carrying out a PCR reaction, subjecting the PCR product to sequencing so as to obtain a plurality of single nucleotide polymorphism (SNP) sites, then letting all effective SNP sites compose a haplotype for molecular markers, thus achieving genetic typing. According to the method provided in the invention, rich polymorphism information can be obtained in one experiment. SNP markers have genetic stability, can be used for samples of different sources, and are suitable for high-throughput automated analysis.

The invention discloses application of flavone type allelochemicals in spartina alterniflora to algae growth inhibition. The application comprises the steps that the flavone type allelochemicals in spartina alterniflora are added into an algae containing water body, so that the concentration of the flavone type allelochemicals in the water body is greater than 0.1g/L. The flavone type allelochemicals capable of inhibiting the algae growth are extracted from the spartina alterniflora; the outbreak of harmful algae can be treated and controlled; the resource utilization of the spartina alterniflora can also be realized.

The present invention belongs to the field of ecological engineering technology, and is ecological engineering method of controlling Spartina alterniflora, which, as one kind of exotic species, has the positive effects of protecting shoreline and promoting siltation to create land while possessing negative effects of affecting biodiversity and aquatic culture. The ecological engineering method of controlling Spartina alterniflora is superior to available mechanical eliminating method, herbicide method and biological method, and has no ecological risk, developed biological control and great economic benefit.

The invention relates to the field of the forestry, and discloses a method for controlling spartina alterniflora. The method comprises the steps of (1) root overturning, wherein the overground parts of the spartina alterniflora are cut off, stubbles with the heights of 3-8 centimeters are reserved, and the overground parts of the spartina alterniflora are overturned and buried in silt; (2) planting of a mangrove forest, wherein nursery stocks of the mangrove forest are planted in an area after root overturning in the density greater than or equal to 1000 plants per mu. The method for controlling the spartina alterniflora has the advantages that through the synergistic effect of a specific root overturning technology and a super-high density afforestation mode, the regeneration of the spartina alterniflora can be effectively inhibited; the spartina alterniflora is controlled by adopting the mode provided by the method, and an indigenous plant mangrove is utilized to replace the spartina alterniflora, so no ecological risk exists, and the problem of the biggest defect, namely, re-invasion of the spartina alterniflora of an existing spartina alterniflora prevention and control technology is completely eradicated.

The invention belongs to the technical field of agricultural microbiology, and particularly relates to a method for recycling spartina alterniflora. The method for recycling the spartina alterniflora includes: firstly, processing the spartina alterniflora after being harvested through a desalting technology, and partially removing salinity of the spartina alterniflora; then, composting and fermenting the spartina alterniflora with bran, corn flour and activated carbon so as to obtain compost; using the compost for cultivating a salt tolerance edible bacterial strain which is yellow oyster mushroom. The method for recycling the spartina alterniflora achieves recycling application of the spartina alterniflora, turns harm into good, and not only creates economic benefit, but also generates good ecological benefit.

The invention discloses a novel ferulic acid aromatic derivative and a preparation method and application thereof. The structural formula of the novel ferulic acid aromatic derivative is shown as a formula (I) which is described in the specification. In the formula (I), R is described in the specification. The novel ferulic acid aromatic derivative of the invention has potential medicinal activity; and the preparation raw material, namely ferulic acid, of the derivative can be obtained by using a natural extraction method, which has positive effect on resource utilization of Spartina alterniflora Loisel.

The invention discloses a method for treating copper-containing wastewater by utilizing spartina-alterniflora-loisel-based charcoal. The method comprises the following implementation steps: washing and drying spartina alterniflora loisel, screening to 100 meshes, placing into a tubular furnace, heating at the temperature rising velocity of 4 DEG C/min to 300-700 DEG C in the presence of carbon dioxide at the flow rate of 80-120mL/min, and remaining for 2 hours; adjusting the initial pH value of copper-containing wastewater to be 3-6; adding spartina-alterniflora-loisel-based charcoal into the copper-containing wastewater, wherein the charging quantity of the charcoal is 1g/L, the initial concentration of the content of copper converted by the copper-containing wastewater is 50-100mg/L, and the reaction time is 0.5-96 hours. The method for treating the copper-containing wastewater by utilizing the spartina-alterniflora-loisel-based charcoal, which is disclosed by the invention, has the advantages that the gap structure and the specific surface area of the spartina-alterniflora-loisel-based charcoal are improved; the decomposition of inorganic carbonate in the charcoal is inhibited, so that the maximal adsorption capacity of heavy metal copper by the spartina-alterniflora-loisel-based charcoal is improved to 90mg/g, and is higher than that of the charcoal prepared in the presence of nitrogen by around 50%, and meanwhile, the problem of invasive plant resource utilization is also solved.

The invention discloses a dynamic monitoring method for the new plaques of spartina alterniflora, and belongs to the technical field of environment monitoring. The method mainly aims to solve the problems that the estuary wetland environment is complex, the field monitoring and measurement work of the new plaques of spartina alterniflora is difficult to carry out, and more medium-spatial resolution satellites can only meet the monitoring requirement of a landscape scale and cannot identify the new small plaques due to the limitation of the spatial resolution of the medium-spatial resolution satellites; by uasing a single-platform high-resolution satellite, due to a revisit period and weather restrictions of cloudy and rainy estuary, the dynamic change monitoring of new plaques is not facilitated, while the multi-platform high-resolution satellite has different spatial resolutions, the accurate new plaque identification and measurement cannot be obtained when the multi-platform high-resolution satellite is directly and respectively used, so that the large-range and non-contact dynamic monitoring method for the new plaque of the spartina alterniflora based on the multi-platform high-resolution satellite data fusion technology is provided.

The invention discloses a distant hybridization breeding method among three categories of shoal spartina alterniflora loisel, maize and rice. The method comprises the following steps: carrying out hybridization by using maize as a male parent and using rice as a female parent to obtain a first hybridized generation of the maize and the rice; carrying out hybridization by using shoal spartina alterniflora loisel as a male parent and using the first hybridized generation of the maize and the rice as a female parent to obtain a distant hybridized seed among the three categories of the shoal spartina alterniflora loisel, the maize and the rice; and carrying out pedigree selective breeding on the distant hybridized seed among the three categories of the shoal spartina alterniflora loisel, the maize and the rice so as to select and breed out a salt resistant and high-yield seed. The invention selects and breeds a new variety suitable for growing on shoals by excavating and creating the high-quality high-yield economic property of the maize and the rice and germplasm resources of salt resistant genes of the spartina alterniflora loisel, and the new variety can be used as a grain and a feed. The invention has huge economic value and social meaning to develop and utilize wide shoals of China.

The invention discloses a novel p-coumaric acid sulfonate derivative, a preparation method and application thereof. The structural formula of the novel p-coumaric acid sulfonate derivative is shown asformula (I) in the specification, wherein R is selected from the following groups shown as the specification. The compound provided by the invention has potential pharmaceutical activity, and the preparation raw material p-coumaric acid can be obtained by natural extraction method, thus having a positive effect on resource utilization of spartina alterniflora.

The invention relates to the technical field of ecological engineering, and discloses a planting method for recovering a natural scirpus mariqueter population. The method comprises the following steps of pretreatment of a planting area, wherein the planting area is ploughed, and the terrain drop height is smaller than 5 cm after ploughing; germination accelerating of scirpus mariqueter seeds, wherein the scirpus mariqueter seeds are pretreated through cold storage for a period time and then placed under appropriate conditions for germination accelerating and germination; planting of scirpus mariqueter, wherein the germinated scirpus mariqueter seeds are sown in the pretreated planting area; water level control and later-period management in the planting area, wherein the water level should not be higher than 1 cm when the germinated scirpus mariqueter seeds are sown, should not be higher than 5 cm when the height of scirpus mariqueter seedlings is 10-15 cm and should not be higher than 10 cm when the height of the scirpus mariqueter seedlings is larger than 20 cm, the flooding time should not be longer than 2 days, the total proportion of weeds should not be higher than 0.1%, and spartina alterniflora plants need to be removed in time. According to the planting method, by planting the aboriginal plants-scirpus mariqueter, the structure and the functions of a salt marsh ecosystem are recovered, and the biodiversity of a salt marsh is improved.

The invention discloses a method for preparing p-coumalic acid by using spartina alterniflora. Spartina alterniflora extraction liquid is subjected to ethyl acetate extraction; then, water phases aretaken; next, n-butyl alcohol is used for extraction; n-butyl alcohol phase extraction liquid is concentrated to obtain n-butyl alcohol phase crude paste; the n-butyl alcohol phase crude paste is sequentially subjected to positive phase silica gel column chromatography, ODS reversed phase chromatography and gel column chromatography; finally, separation and purification are performed through a highperformance liquid phase chromatography technology, thus obtaining the p-coumalic acid. Pharmacological research results show that the p-coumalic acid has obvious uric acid reduction and blood sugarreduction effects on mice with hyperuricemia.

The invention belongs to the technical field of ecological environment engineering, and particularly relates to a method for comprehensive treatment of spartina alterniflora through terrace type flooding surrounding and mowing. The method comprises the steps that in a spartina alterniflora treatment area, a dam perpendicular to the coastline and a dam parallel to the coastline are constructed respectively, the dams are connected with each other, the treatment area is enclosed into a closed area, the overground part of the spartina alterniflora in the area is mowed in the late elongation stage, the dams store tide water during flood tide, the stubbles of the mowed spartina alterniflora in the treatment area form terrace type flooding surrounding until no new spartina alterniflora germinates any more, and the dams are removed to restore the natural environment of a beach. The method has the advantages that the method is simple and easy to operate, the water storage performance of the dams is good, the applicability is strong, the method is not only suitable for small-range spartina alterniflora treatment, but also suitable for large-range spartina alterniflora treatment, the treatment effect of the spartina alterniflora is good, the cost is lower, the influence on the environment is small, and the ecological environment of the beach is easy to restore.

The invention provides a cultivation method of selenium-rich kumquats and belongs to the field of agricultural planting. The cultivation method specifically includes: firstly, selecting the land fit for growth of the kumquats for soil preparation; selecting suitable kumquat seedlings for planting and applying base fertilizer prepared from self-made organic fertilizer, phosphate fertilizer and potash fertilizer in planting pits before planting, wherein the self-made organic fertilizer is prepared from mixed fermentation of kumquat rotten branches, red-pine rotten branches, peanut meal, pineapple leaves, spartina alterniflora loisel, sweet photo vines, charcoal dust, pomegranate bark, pig manure and a rush corrosion inhibitor; irrigating planting water after the seedlings are transplanted to the land; performing reasonable field management till harvest of fruit. With the cultivation method, percentage of fertile fruit of the kumquats can be increased, the fertilizer is saved, the yield is increased, selenium content in the fruit is increased, nutrition value of the products is increased, and the method is suitable for large-scale systematic planting and can increasing the yield and income of farmers.

The invention relates to a method to produce paper with rice flower via anaerobic fermentation-soda anthraquinone, wherein it comprises: pretreating the rice flower, to generate acid in anaerobic condition or generate methane to ferment for 15-60days; then washing and dewatering the fermented slag; mixing the caustic soda at 6-14% and the anthraquinone at 0.01-0.05%, to be put into slurry boiler; adding water as the ratio at 1:3-1:10; sealing boiler to boil with high-pressure steam to 0.07MP to discharge gas; then closing the discharge valve; at 120-160Deg. C, boiling for 0.5-2 hours to wash slurry, to obtain the rough slurry to produce paper.

The invention discloses a preparing method of marsh gas based on high-effective anaerobic ferment of interflower-rice-straw in the resource and environmental technological domain, which comprises the following steps: predisposing interflower-rice-straw; adding N element material in the interflower-rice-straw; adjusting the ratio of carbon and nitrogen at 20:1-30:1; putting in the ferment device; seeding; fermenting; finishing one ferment period through 20-60d. The ferment method contains single-phase non-revolving ferment method, single-phase inner-revolving ferment method and solid-liquid ferment method.

The invention relates to a method for detecting spartina alterniflora distribution, in particular to a method for detecting spartina alterniflora distribution based on remote sensing big data and a cloud platform. The method solves the problem that the precision of the existing remote sensing technology for identifying the spartina alterniflora is low, and realizes the spatio-temporal distribution detection of the spartina alterniflora from big data and a cloud platform. The method comprises the following steps: 1, generating a spartina alterniflora sample library; 2, generating two basic image sets; 3, fusing into a new basic feature image; 4, calculating seven parameters; 5, performing fusion to generate a new image; 6, modifying related segmentation parameters until a segmentation result is obtained; 7, obtaining a training sample and a verification sample; and 8, obtaining spatial distribution information of the spartina alterniflora. According to the invention, the problem of invasion space distribution of the spartina alterniflora is accurately and rapidly detected and obtained by applying the remote sensing technology, the detection result is accurate, the precision and credibility of remote sensing classification of the spartina alterniflora are improved, repeatability and robustness are achieved, and the method has extremely important significance for monitoring remote sensing mapping of the spartina alterniflora.

The invention specifically relates to application of Spartina alterniflora and Kosteletzkya virginica root tubers to preparation of functional cordial, belonging to the technical field of plant-originated cordial products. According to the invention, the overground part of the original herb of Spartina alterniflora or the extract of Spartina alterniflora, and the Kosteletzkya virginica root tubersor the extract thereof are added into liquor according to a certain ratio to prepare cordial. Study results of the invention prove that the Spartina alterniflora-Kosteletzkya virginica cordial has abright yellow color and pleasant flavor and is capable of resisting gout, helping sleeping, dispelling the effect of alcohol, etc.