136 results about "Street tree" patented technology

The invention provides a tree trunk injection liquid containing emamectin benzoate and thiacloprid, and a preparation method thereof. The tree trunk injection liquid comprises, by mass, 2-10% of emamectin benzoate, 2-10% of thiacloprid, 3-15% of a surfactant, 2-6% of glacial acetic acid and 59-90% of an alcoholic solvent. The trunk injection liquid has the characteristics of small dosage, low cost, high control effect, only taking effect on target pests of trees, no damage to natural enemy insects, environmental protection, wide application range, simple and convenient operation, and high work efficiency, is unlimited by geographical conditions and climate change, can be applied in an anhydrous non-contact manner, is safe to human and environment, and can pertinently control pests in forests, urban landscapes, scenic area greening trees, street trees, shelter belts and fruit trees.

The invention provides a street tree planting hole structure and a construction method thereof. The street tree planting hole structure is characterized in that a planting soil ball wrapped with a permeable geotextile bag is arranged in a planting hole, space between the outer surface of the planting soil ball and the inner surface of the planting hole is filled with an upper peripheral water storage layer and a lower peripheral water storage layer, the upper peripheral water storage layer comprises a top water storage layer, the lower peripheral water storage layer comprises a bottom water storage layer, a water purification layer is located on the upper end surface of the top water storage layer, a permeable layer is located on the upper end surface of the water purification layer, a permeable brick layer is located on the upper end surface of the permeable layer, and side stone is arranged on the peripheries of the permeable brick layer and the permeable layer. According to the planting hole structure and the construction method, water infiltration and storage can be facilitated, and a root microreservoir is formed; not only is overland runoff in the rain season adjusted, but also a water supplementing function in the dry season is exerted, the water storage structure can also guarantee ventilation of roots of street trees, the planting hole is endowed with functions of storing rainwater in rainy days and releasing stored water to support street tree growth in sunny days, the maintenance cost is reduced, and urban rainwater is recycled.

The invention provides a biological adsorbent with simplicity in preparation, high efficiency and lower cost to remove dyes in waste water. In the preparation, the needles of the cedar are dried and crushed, the ethanol is used for degreasing and removing the organic pigment, and the needles are flushed by phosphate buffer and then precipitated, dried and sieved to prepare the adsorbent for removing the dye. According to the invention, the preparation process of the biological adsorbent is simple. Compared with other traditional adsorbents, the dye adsorbent has a lower cost and higher adsorption efficiency. Moreover, the cedars are common street trees and garden viewing trees, so that the material drawing is convenient, the materials are sufficient, and the problems of high cost, long time and secondary pollution due to recycled use of the adsorbent can be solved.

The invention provides a city near-surface layer thermal environment multi-point instant sampling measurement method. The method comprises steps that (1), the analysis demand is taken as a limiting condition, a measurement area is selected according to the meteorological data; (2), a three-dimensional building model of the measurement area is constructed on the basis of a city satellite map and the main street tree data, sunshine analysis on the three-dimensional building model is carried out, and a sunshine analysis model reflecting the relationship between latitude and longitude coordinates and the average sunshine duration of the measurement area is generated; subarea processing on the sunshine analysis model is carried out according to a type of an underlying surface of the measurement area, each subarea of a sunshine analysis graph is sampled by taking the average sunshine duration as an axis and deltat as the sampling time interval, and multiple sampling areas are acquired; N measurement points are uniformly distributed in each sampling area at equal density, and latitude and longitude coordinates of each measurement point are acquired; and (3), the equal-altitude thermal environment characteristic data of the measurement points is acquired. Through the method, objectivity of selected points and synchronism and completeness of data samples are realized.

The invention relates a drainage planting hole structure with purifying and recycling functions. The drainage planting hole structure consists of three parts, namely a planting mechanism, a flow guiding mechanism and a collecting and purifying mechanism, can promptly drain residual water in planting holes of clay soil to prevent transplanting soil balls from being soaked and to reduce the survival rate of nursery stocks, and also can purify and recycle residual water in tree holes. With respect to the characteristics that clay soil is poor in water and air permeability, the arc-shaped lug boss planting hole structure is adopted, and a cobblestone layer, a rubble layer, a zeolite layer and a coal ash layer are sequentially arranged in a purification bath from bottom to top, so that water is preliminarily purified through an ecological filtering layer from bottom to top by virtue of the water pressure action, residual water is purified and recycled on the basis of promptly discharging water accumulated in and around the planting holes, and accordingly, the survival rate of the nursery stocks and recycling of water resources are improved to the utmost extent. The drainage planting hole structure is suitable for transplanting large nursery stocks, such as street trees of cities in clay soil regions.

The invention relates to an improvement method for underground soil of urban street trees on a coastal saline and alkaline land region, mainly aiming at the improvement of an underground salt elimination system and street tree root growth spaces of a street tree region which is built for many years. The method comprises the following steps that (1) sidewalk saline soil, concrete and sidewalk pavement on the outer sides of the street tree region are removed, and original saline soil is replaced with soil dressing; (2) a dn60PVC (polyvinyl chloride) vent pipe is paved in a plant root system concentrated distribution layer, the paving mode is a horizontal wave mode, two ends of the vent pipe penetrate through the original street trees by a certain angle, the two ends are 2-3cm higher than a greenbelt, a dn60PVC leaky pipe is deeply paved in the original street tree leached layer, non-woven fabric is used for coating the outer side of the leaky pipe, and the leaky pipe is connected with a salt elimination inspection well of the underground salt elimination system of the original street tree region. By using the improvement method, the growth and sustainable development of the street trees can be guaranteed, and the ecological benefits of the street trees can be fully exerted.

The invention discloses a device for monitoring strength and stability of old and famous trees or tall urban street trees. A micro-angle sensor easy to be concealed is mounted on a trunk or a branch of an old and famous tree and transmits tested response information of the old tree under action of wind and snow load to a micro-host computer that is also easy to be canceled on the tree; an acquisition and calculation module analyzes and processes the information in real time and converts the information into strain/stress and stability data of the tree; a wireless communication module transmitsthe analyzed and processed data to a virtual cloud server; the strength and stability of the old and famous trees or the tall street trees can be monitored remotely by the mobile phones all over thecountry through a mobile phone APP, to discover risks of breaking and lodging of the trees in time and guide workers to take protective measures in time.

The invention discloses a tree wind load measurement method. The measurement method comprises the steps of measuring a bending moment, a torque and wind force generated by a tree trunk under the action of a wind pressure, and an acting point position of the wind force. A wind load is obtained by the steps of mounting deformation sensors at different positions and azimuthal angles of the tree trunk and performing measurement to obtain a relationship (epsilon max=f(v2)) among a maximum linear strain, a maximum shear strain and a wind speed generated by the tree trunk under the action of strong wind; then under the no-wind condition, performing a manual tension test on a tree, and establishing a relationship (M=g(epsilon max)) among the bending moment, the maximum linear strain and the shear strain; and finally according to the two formulae, establishing a relationship (M=g(epsilon max)) between the bending moment and the wind speed, wherein the relationship is called as a wind-induced bending moment characteristic equation. For the selected tree, the wind-induced bending moment characteristic equation of the tree has specificity and conditional uniqueness. Based on this, a wind load on a tree crown and an acting point position also can continue to be determined. The method solves the difficult problem of difficulty in determining the wind load of the tree, and can be used for monitoring/predicting wind damage resistance of trees in forest regions, urban street trees and ancient and rare trees in gardens.

The invention discloses a ground rainwater comprehensive utilization structure. The ground rainwater comprehensive utilization structure comprises a settling pond and a water storage pond which are arranged below a road surface, a water grate is arranged on the settling pond and flush with the road surface, one side of the pond wall of the settling pond is provided with a drainage pipe and a water outlet, the drainage pipe is communicated with a municipal pipeline, an automatic overturn gate is arranged at the junction between the drainage pipe and the pond wall of the settling pond, the water outlet of the pond wall of the settling pond is communicated with the water storage pond, the water outlet is lower than that axis of the automatic overturn gate, a filter screen is hung on the water outlet, and water-pervious hoses are arranged on the pond wall of the water storage pond and stretch to roots of plants on the road surface. The ground rainwater comprehensive utilization structure integrates direct utilization and indirect utilization of rainwater on the hardened ground, runoffs on the road are collected to serve as supplement water sources of green belts on the roadside according to the water usage characteristic of street trees and the green belts on the road, a pipeline is shortened, and the rainwater can further serve as water for environment after being processed through percolation.

The present invention provides a street tree pool for greening. The street tree pool comprises water grooves, inserting strips and inserting grooves. A base is of a rectangular groove structure, and the center of the bottom is provided with a circular through hole. A grass planting groove is disposed at the top of the base and is of a square-hole shaped groove structure, and external side surfacesof the grass planting groove are flush with external surfaces of the base. Twelve inverted-taper shaped taper holes are disposed in the bottom of the grass planting groove. A separate type guard plate is divided into left and right portions, and the middle of the guard plate is provided with a round hole (the hole diameter is designed according to the tree diameter). The annularly distributed water grooves are disposed at the top of the guard plate for guiding accumulated water. The street tree pool can be used for storing water during the rainy season and providing certain water vapor for plant survival during the dry season, and root rot is prevented. According to the principle that heat absorption and heat dissipation of the water in a water storage tank are slow, temperature of the tree pool can be adjusted, permeability and drainage are achieved, and joint of a sponge city and the heat island effect engineering is facilitated by a water drain pipe.

The invention relates to a cold-region habitat restoration-based street tree pit structure and a manufacturing method. At present, street tree pits in the city have the problems that the space requirements of the growth of plant roots cannot be met, city rainwater logging cannot be regulated, the habitat supply capacity is weak and the like. The street tree pit structure consists of an ecologicalwater retention area structure and a planting area habitat structure; the ecological water retention area structure consists of an external skeleton and a rainwater storage structure; the exterior ofthe rainwater storage structure is designed to be a concrete wall surface (11); a planting soil layer A (7) is arranged at the middle position in the concrete wall surface; a gravel layer A (8), a crushed-stone cushion A (9) and porous ceramsites (10) are arranged at the bottom part of the planting soil layer in sequence; two sides of the planting soil layer A are provided with a slow permeation membrane (5) and pebble filling (3) respectively; the right side of the slow permeation membrane is provided with a water storage tank; a drainage pipe (6) is installed at the upper part of the water storage tank; and a gutter inlet (2) and a bituminous pavement (1) are installed at the left side of the upper part of the concrete wall surface. The invention is used for the cold-region habitat restoration-based street tree pit structure.

A water and nutrient supply apparatus for a street tree according to the present invention comprises an inlet which is open and supplied with water and nutrients, and a body unit wherein a cavity is vertically formed and is connected to the inlet. For discharging the water and nutrients supplied from the inlet to the ground and supplying them to a street tree, plural supply holes are formed in the lateral side of the body unit in order to connect with the cavity. A street tree protective assembly according to the present invention comprises a support unit comprising outer and inner supporting members, and a protective member wherein at least one housing hole housing the water-and-nutrient supply apparatus for the street tree is formed. Plural supply holes are formed in the protective member, occupying a relatively smaller area than the housing hole and a through-hole is formed in the protective member so that the street tree can pass therethrough. The support unit is placed on the ground surrounding the street tree and is interposed between the protective member and the ground. The outer supporting members are arranged along the circumference of the protective member and the inner supporting members are arranged along the circumference of the through-hole.

The invention discloses a mobile communication 3G/4G (third generation/fourth generation) electric wave propagation loss NPL (noise-pollution level) model under the shade of street trees and a network optimization method; the mobile communication 3G/4G electric wave propagation loss NPL model under the shade of the street trees comprises four types of street trees, the first, second and third types of street trees are thick with leaves, and can greatly absorb energy of electric waves; the fourth type of street tree is thin with leaves, about 5 m in height and about 5 years old, and can absorb less energy of electric waves; the invention further relates to a network optimization method of the mobile communication 3G/4G electric wave propagation loss NPL model under the shade of the street trees, comprising the following steps: (1) setting a base station distance, wherein a base station is inappropriate to close to the street trees, an incident angle can be controlled between 10-30 degrees; (2) computing linkage budget covered by the street trees, wherein a certain of demodulation threshold performance deterioration allowance can be preserved; and (3) automatically correcting the frequency, wherein the base station adjusts the base station receiving frequency according to the frequency offset of a received mobile phone signal. The mobile communication 3G/4G electric wave propagation loss NPL model under the shade of the street trees and the network optimization method are used for optimizing the effective coverage of the mobile communication network and reducing the dropped call rate.

The invention discloses a cultivation method for a big seedling of an arbor euonymus alatus street tree. The cultivation method comprises the steps: stumping a 1-2 year in-situ sown seedling or transplanted seedling on the basis of selecting Euonymus maackii Rupr. or Euonymus hamiltonianus, and forming a straight and tall trunk by virtue of an apical dominance produced after stumping to finish drycultivation with a street tree trunk requirement; and after carrying out secondary transplantion for 1-2 years, carrying out heading according to a street tree trunk height requirement, cultivating afirst-grade skeleton branch by virtue of the apical dominance produced after heading, and cutting back the first-grade skeleton branch in the second year to form a second-grade skeleton branch so asto finally finish the crown shape cultivation of the street tree. By using the method, the cultivation of the trunk and a crown can be finished within 6-10 years, the requirements of urban street trees for dryness and crown shapes are met, the height of the trunk reaches 2.5-4.0m, the trunk is strength and tall, the crown has three plies and six branches, the cultivation time is greatly shortened,and the arbor euonymus alatus tree serving as one of good tree species for urban greening can sufficiently exert advantageous characteristics and achieve an application value.

The invention relates to a water storage structure capable of improving moisture content in underground soil of urban street trees. The water storage structure comprises water seepage and storage pools and overflowing pipelines; each water penetration and storage pool comprises a pool body upper cover and a composite penetration layer; each pool body upper cover is a container of which the upper end is closed and the lower end is open; overflowing openings are formed on the inner walls of the pool body upper covers; the composite penetration layers are arranged at the openings at the lower ends of the pool body upper covers, and water penetration and storage cavities capable of accommodating rainwater are formed between the composite penetration layers and the pool body upper covers; the overflowing openings of the adjacent water penetration and storage pools are communicated with the overflowing pipelines. The water storage structure has the advantages that the water storage structure has both water penetration and storage functions; rainwater in urban rainwater wells can be collected by the water penetration and storage pools; the rainwater is stored in the water penetration and storage cavities, and slowly penetrates and supplements underground water through the composite penetration layers; penetrating rainwater can be adsorbed by the street trees, and the street tress do not need to be irrigated by municipal water resources. A volume of water for municipal greening and irrigation is reduced.

A street tree guard ensuring easy assembly work and having secure coupling strength is provided. The street tree guard includes an inner supporting member which is configured to be installed on a ground around a street tree, an outer supporting member which is configured to be disposed while being spaced apart from the inner supporting member outward, a covering member which configured to be disposed between the inner supporting member and the outer supporting member. Each of the inner supporting member and the outer supporting member includes a plurality of base members configured to be disposed at equal intervals and a plurality of connecting members configured to connect two facing ends of the base members to each other. If a part of the street tree guard is damage, only the damaged part is replaced for maintenance, thereby reducing the maintenance sot. The street tree guard ensures easy installation. The street tree guard ensures simple assembly work, thereby making it easy to clean a surrounding of the street tree.

A rapid assessment method for wind-induced damage to urban street trees. A simplified model of wind-induced damage to street trees is established. According to the finite element theory and assuming that the tree materials are isotropic and uniform, the material physical parameters that affect the individual dynamic behavior of trees are abstracted; at the same time, considering Due to the different tree species and growth conditions, as well as the large differences in individual tree shapes and traits, the material physical parameters in the wind-induced damage model of street trees are regarded as random variables; the input fluctuating wind speed is taken as the Davenport spectrum, and the virtual excitation method is used for rapid wind-induced response of street trees. calculate. On this basis, a wind-induced damage criterion for street trees based on flexural strength is defined, and Monte Carlo simulation is used to quickly evaluate the damage probability of street trees under different wind load levels. The invention is beneficial to more accurately and effectively predicting wind disaster damage to street trees in urban areas, and has practical significance for formulating corresponding defense measures.

The invention relates to a preparation method of a multifunctional street tree whitening paint, and belongs to the field of preparation of whitening paints. The preparation method comprises the following steps: leaching pomegranate barks by using ethanol, concentrating to prepare bacteriostatic solution, and then performing high-temperature calcination to prepare a nano titanium oxide photo-catalytic material; and adding the bacteriostatic solution and the photo-catalytic material into a self-made paint substrate, adding an appropriate amount of fluorescent powder, performing dispersive stirring by using a high-speed dispersion machine, and barreling and sealing to obtain the multifunctional street tree whitening paint. The paint integrates multiple functions of insect prevention, heat preservation, freezing resistance, catalytic degradation of automobile exhaust gas, night indication and the like, and is pollution-free to environment. Compared with the prior art, the multifunctional street tree whitening paint provided by the invention cannot corrode barks, is long in insect prevention time effect, and cannot lose effectiveness due to irradiation of sunlight and flushing of rainwater.