CN109544045B - Urban street green land vegetation space configuration method based on biodiversity support function - Google Patents
Urban street green land vegetation space configuration method based on biodiversity support function Download PDFInfo
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Abstract
The invention provides a method for detecting biological diversityThe method for configuring the space of the green vegetation beside the urban street with the support function comprises the following steps: 1) arranging a street green land in a city, wherein at least one side of the street green land is close to urban road land, and the street green land is internally provided with a shrub area and an arbor area in sequence from the urban road land; 2) configuration DtCalculating A; 3) configuring At, As and Ah, and calculating R; 4) configuring arbor plant, calculating Ht. According to the urban street green vegetation space configuration method based on the biodiversity support function, the capacity of resisting external interference pressure of the street green space is enhanced by controlling the distance of retreat of the arbor region, the greening coverage area ratio of the arbor region, the average height of the arbor region and the like, a safe shelter space with high canopy density is provided for birds, the biodiversity of the street green space is improved, and a life community with harmonious and natural coexistence is constructed.
Description
Technical Field
The invention belongs to the technical field of landscape planning, relates to a space configuration method of green land vegetation beside a city street based on a biodiversity support function, and particularly relates to a method for improving biodiversity of green land vegetation beside the city street by adopting specific indexes to perform space configuration on the green land vegetation beside the city street.
Background
Urban biodiversity is the degree of differentiation of genes, species and urban ecosystems embodied by the regular combination of various non-human organisms in urban areas, and is one of the natural background of urban development and the most important urban public resources. The change of biodiversity changes the ecological system process and the resistance and toughness of the ecological system to environmental changes, has profound influence on the service function of the ecological system, and influences the health and the welfare of human beings through a feedback mechanism.
As the world enters the urban century, urban biodiversity is the only biodiversity most humans can experience. The street green land is used as a part of an urban green land system, is an essential supplement for urban parks, has a non-replaceable function, supports the urban natural ecological sub-system and a habitat of various species, promotes citizens to naturally contact, and has positive influence on the physical and mental health of the people. Therefore, it is very important how to improve the biodiversity of the green land beside the city street.
The street green land refers to a green land which is positioned outside the urban road land and relatively independent into a piece, and comprises a street square green land, a small-sized street green land, a vestibule green land of a street building, a green zone outside a red line of a road and the like. China has also defined such usage areas as small parades, street greens, street small parades, etc. A similar concept is called "street park" in japan, and "pocket park" (pocket park) "," mini-park "(mini-park)", "Small Public Urban Green Space (SPUGS)", etc. in english, united states.
Although the ecological benefit of a single street green land is limited, in a high-density urban area, the small-scale green land still has considerable effects on improving local ecological environment climate, purifying air, reducing noise, protecting water and soil, providing oxygen and the like; more importantly, the combination of the small greenbelts distributed in various places of the city and other types of park greenbelts and ecological corridors can greatly improve the effectiveness and the connectivity of urban ecological networks, provide foothold and netted communication paths for the movement of specific living beings, become important shelters (shelters) for living beings to rest and find food and movable Stepping stones (Stepping-stone), and also have important significance for promoting urban biodiversity.
Leisure, beautifying functions and environmental design of green areas beside urban streets have been discussed largely, while ecological functions, particularly biodiversity supporting functions, are often neglected, and researches on green areas beside urban streets focusing on biodiversity problems are very rare.
Disclosure of Invention
In view of the above-mentioned deficiency of the related planning indexes of biodiversity, the present invention aims to provide a method for configuring vegetation space around urban street based on biodiversity support function, which is used to solve the problems of reducing the interference to living beings, improving biodiversity and constructing the urban street green space in the environment where people and nature coexist harmoniously.
In order to achieve the above objects and other related objects, a first aspect of the present invention provides a method for spatial arrangement of green vegetation on urban streets based on biodiversity support function, comprising the steps of:
1) arranging a street green land in a city, wherein at least one side of the street green land is close to urban road land, and the street green land is internally provided with a shrub area and an arbor area in sequence from the urban road land;
2) configuration DtSo that it conforms to the formula (1),
the formula (1) is: a ═ Dt/D
Wherein D istThe distance of the boundary receding of the arbor area is m; a is the arbor withdrawal rate of the green land beside the street; d is the depth distance of the green land beside the street, m;
3) at, As and Ah are arranged so As to satisfy the formula (2),
the formula (2) is: r ═ At + As + Ah)/Sq
Wherein R is the greening coverage area ratio of the arbor area; at is the arbor coverage area in the arbor region, m2(ii) a As is the area of shrub coverage in the arbor region, m2(ii) a Ah is the area of ground coverage in the arbor area, m2；SqArea of arbor region, m2；
4) Configuring the arbor plant to conform to equation (3),
the formula (3) is: ht＝∑(at×ht)/∑ht
Wherein HtIs the average height of the arbor area, m; h istHeight of t arbor, m; a istThe number of plants of the t arbor is shown.
Preferably, in step 1), the urban road land is selected from one or more of express way, main road, secondary road, branch road and intersection land thereof, roadway, sidewalk, partition strip and green land.
More preferably, the roadway includes a non-motorized lane and a motorized lane.
Preferably, in step 1), the edge of the green land near the urban road land near the street is prone to form an interference interface for human activities. The urban road land can interfere human activities on green land beside the street.
Preferably, in the step 1), the afforestation planted in the shrub area is ground cover and shrub. Shrubs are mainly used for planting trees in the shrub area. The boundary of the shrub area adjacent to the urban road land is easy to form an interference interface of human activities, and the shrub area is easy to be interfered by external human activities.
Preferably, in the step 1), when the shrub area is located in a street green area in a sight distance triangle at a corner of a road, the height of all greenery in the shrub area is less than or equal to 0.7 m. All greenery (including ground cover and shrub) in the shrub area forms a sparse and open greening effect and accords with the sight distance triangle principle.
The sight distance triangle (sight triangle) is a triangle formed by the intersection of a plane intersection, wherein the intersection point of the center line of the outermost lane of the driving direction of a road entering the intersection and the center line of the innermost lane of the intersection is a vertex, and the lengths of the two lane center lines of the two lanes are two sides according to the specified vehicle speed.
The sight distance triangle principle means that in order to ensure that straight vehicles on two urban roads which are close to a green space beside a street have safe parking sight distances, the sight of a driver is not blocked when the road turns, the plant height of the green space beside the street in the sight distance triangle range is not too high, and no barriers such as buildings, structures, billboards and the like can be arranged in the sight distance triangle, so that the clear and open greening effect is formed.
Preferably, in step 1), the afforestation planted in the arbor area is ground cover, shrub and arbor. And trees are mainly planted in the arbor area.
More preferably, the arbor is selected from food-borne native plants, and the arbor species should be covered in great shade.
More preferably, the ground cover, the shrubs and the trees are planted in a multi-layer structure, and the ground cover, the shrubs and the trees are arranged in a low-middle-high mode.
Preferably, in the step 1), auxiliary greenbelts are arranged between the arbor area and various urban communities. The satellite greens form an adjoining interface. The various communities in the city include, but are not limited to, one or more combinations of residential, business, or commercial areas.
Preferably, in step 2), the boundary-receding edge of the arbor area forms a continuous interface by adopting a close planting method.
Preferably, in step 2), the step of moving back to the boundary of the arbor area refers to a horizontal distance from the edge of the urban road land adjacent to the green land beside the street to the boundary of the arbor area. The boundary of the arbor area is the first layer continuous arbor interface of the arbor area close to the urban road land.
Preferably, in step 2), the depth distance of the green land beside the street is a horizontal distance from one side edge to the other side edge of the green land beside the street.
Preferably, in the step 2), when the depth D of the green land beside the street is less than or equal to 6m, the jungle junction withdrawal rate A is less than or equal to 0.7;
when the depth distance D of the green land beside the street is more than 6m and is less than or equal to 15m, the jungle junction withdrawal rate A is less than or equal to 0.6;
and when the depth distance D of the green land beside the street is more than 15m, the jungle junction withdrawal rate A is less than or equal to 0.5.
The arbor debarking rate reflects the ability of the green land beside the street to resist human activity interference.
Preferably, in the step 3), the greening coverage area ratio R in the arbor area is more than or equal to 2.
Preferably, in step 4), the average height H in the arbor areat≥12m。
The invention provides a green land beside a city street, which is obtained by the method configuration.
As described above, the method for configuring the vegetation space of the green land beside the urban street based on the biodiversity support function provided by the invention has the following beneficial effects:
(1) according to the urban street green land vegetation space configuration method based on the biodiversity support function, through reasonable space configuration of urban street green land vegetation, a shrub area and a arbor area are arranged, so that the street green land is used as a transfer 'footstone' of urban wild animals such as birds, abundant and safe inhabitation and shelter spaces are provided for the urban wild animals such as the birds through dense branches and leaves, and the abundance of bird species in the street green land is increased.
(2) According to the urban street green space vegetation space configuration method based on the biodiversity support function, due to the reasonable layout in the mode of setting the arbor return rate of the street green space, the interference of peripheral functional groups and roads on organisms is reduced while the landscape and the convenience of people use are ensured, and the level of resisting the external interference pressure of the street green space as a small green space habitat is enhanced.
(3) According to the city street green land vegetation space configuration method based on the biodiversity support function, from the perspective of landscape planning design, in urban micro-updating, through modification of street green land, birds and other organisms can stay in more places in a city, biodiversity can be effectively protected, urban space generation of ecological system service function optimization is promoted, a basis is provided for protection and promotion of biodiversity from the perspective of landscape planning design, and a life community with harmonious coexistence of people and nature can be constructed.
Drawings
Fig. 1 is a schematic plane structure diagram of the jungle withdrawal rate of the green land beside the city street according to the present invention.
Fig. 2 is a schematic perspective view of the jungle withdrawal rate of the green land beside the city street according to the present invention.
FIG. 3 is a schematic diagram showing the number of birds in a green space beside a city street according to the present invention.
FIG. 4 is a schematic representation of bird density comparison between a city street greenbelt and other greenbelts in accordance with the present invention.
FIG. 5 is a graph showing the abundance of avian species in green space of urban street in comparison with the fluctuation range and average value of other green spaces.
FIG. 6 is a schematic diagram showing the comparison between the bird diversity index of the green land on the street and the fluctuation range and average value of other green lands.
FIG. 7 is a schematic diagram showing the investigation range of the study area, the street green land pattern, and the green land position of the control group.
FIG. 8 is a schematic diagram showing the location of the selected sample plot in detail in the green field along the street in the main road of the century.
FIG. 9 is a schematic diagram showing classification and interface analysis of green land along street in the main course of century.
FIG. 10 is a graph showing species abundance of greenbelt along street in century and species abundance of neighboring residential areas.
Figure 11 shows a graphical representation of the abundance of avian species and the interference/adjacent interface ratio of birds in the green along the street in the main part of the century.
Fig. 12 is schematic diagrams a and b showing a comparison of vegetation space arrangement between a plot 21 and a plot 5, in which fig. 12a is a diagram of vegetation space arrangement of the plot 21, and fig. 12b is a diagram of vegetation space arrangement of the plot 5.
FIG. 13 is a schematic view showing the relationship between the green space on the street and the view distance triangle.
Reference numerals
DtDistance of departure of arbor area
D depth distance of green land beside street
Detailed Description
The present invention is further illustrated below with reference to specific examples, which are intended to be illustrative only and not to limit the scope of the invention.
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention.
Example 1
Set up the street greenery patches in the city, the street greenery patches outside urban road land, relatively independent one side or more side are close to urban road land, inwards are equipped with bush district, arbor district in proper order along urban road land to all kinds of community directions on every side. Street greens include, but are not limited to, street plazas, small street greens, building vestibule greens, off-red green zones of roads, and the like, and typically such uses may also be defined by a small garden, a street housing greens, a street mini-garden, and the like. The urban road land is selected from one or more of express way, main road, secondary road, branch road and intersection land, roadway (including non-motor vehicle lane and motor vehicle lane), sidewalk, separation zone and green land. See in particular fig. 1, 2.
The greenbelt planted in the shrub area is ground cover and shrub, and the shrub area adjacent to the urban road is easily interfered by external vehicle and human activities. When the shrub area is located in a street green area in a sight distance triangle at a road corner, the height of all greening in the shrub area is less than or equal to 0.7 m. The greening height planted in the shrub area conforms to the sight distance triangle principle.
Specifically, since the green land near the street is close to the land used by the urban road, the plants must be configured so that the vehicles traveling straight on the two intersecting roads have safe parking sight distances, provided that the driver's sight line is not obstructed when the road turns. The sight distance triangle (sight triangle) refers to a plane intersection, and is a triangle formed by using the intersection point of the center line of the outermost lane of the driving direction of a road entering the intersection and the center line of the innermost lane of the intersected road as a vertex, and the lengths of the center lines of the two lanes according to the specified vehicle speed and the parking sight distance are two sides. In the shrub area within the triangular range of the sight distance, the greening height is not more than 0.7m, ground cover plants such as lawns and the like are planted, and bushes and flowers and shrubs can be dotted on the lawns to form a clear and wide greening effect. See in particular fig. 13.
An auxiliary green land is arranged between the arbor area and various urban communities. Various types of communities in a city include, but are not limited to, one or more combinations of residential, business, or commercial areas.
Greenery planted in the arbor area is groundcover, shrubs and arbors. The arbor is made of edible local plant and tree species are covered by the canopy and shade. The ground cover, the shrub and the arbor are planted in a multi-layer structure, and the ground cover, the shrub and the arbor are arranged in a low-middle-high mode and combined with each other. The boundary-receding edge of the arbor area adopts a close planting method to form a continuous interface.
Configuration DtSo that it conforms to formula (1): a ═ DtD, wherein DtThe distance of the boundary receding of the arbor area is m; a is the arbor withdrawal rate of the green land beside the street; d is the depth distance of the green land beside the street, m. When the depth D of the green land beside the street is less than or equal to 6mThe boundary retreating rate A of the arbor is less than or equal to 0.7; when the depth distance D of the green land beside the street is more than 6m and is less than or equal to 15m, the jungle junction withdrawal rate A is less than or equal to 0.6; and when the depth distance D of the green land beside the street is more than 15m, the jungle junction withdrawal rate A is less than or equal to 0.5.
At, As and Ah are arranged so As to satisfy the formula (2): r ═ At + As + Ah)/SqWherein R is the greening coverage area ratio of the arbor area; at is the arbor coverage area in the arbor region, m2(ii) a As is the area of shrub coverage in the arbor region, m2(ii) a Ah is the area of ground coverage in the arbor area, m2；SqArea of arbor region, m2. Further defined as the greening coverage area ratio R in the arbor area is more than or equal to 2.
Configuring a tree plant so that it conforms to formula (3): ht＝∑(at×ht)/∑htWherein h istHeight of t arbor, m; a istThe number of plants of the t arbor is shown. Further defined as the average height H in the arbor areat≥12m。
Example 2
The green land along the street in the great way of the Pudong New district century in the Shanghai City is taken as a research object, the eastern Mingzhu in the West of the great way of the century and the east to century parks are an axis connecting two large landmark nodes of the city.
The range of this study included 100 meters and complete blocks on both sides of the great road from the xiaolujiazui area to the yanghu section of the century, and 51 blocks in total along the line of the splendid line and the street in the park of the century. 23 sample plots of the green land beside the street are arranged in the research area, wherein 9 triangular street corner green lands are arranged at the special-shaped intersection of the main street and the peripheral road in the century and are marked as 'temporary green land' in the greening management, but the green land is larger than the common green land beside the street in scale and is maintained and pruned by a greening management department daily for 20 years after certain vegetation succession. The other 7 small paradises on the footpath on the north side of the main road of the century are small paradises, each small paradise is 180m long and 20m wide, and is enclosed by white whitewashed walls, so that the vegetation in the paradises is single; in addition, 5 residential areas with a width of less than 5m were strip-shaped greenbelts along the street, and 1 traffic island and 1 green land between business buildings (table 1).
For comparison with the surrounding greenbelts, 62 other types of greenbelts were set as control groups, including 1 synthetic park, 3 community parks, 4 strip parks, 1 productive green belt, 21 residential green belts, 21 public facility greenbelts, 10 road greenbelts, and 1 wetland (fig. 7).
TABLE 1 study of regional various street green areas and types of contiguous plots
Bird surveys were conducted on various street greenbelts in the above-mentioned research area from 11 months to 10 months in 2014 to investigate 12 times per month. The monthly survey is concentrated on the last ten days as much as possible, the early morning is generally selected on the weekend with clear weather, and the early morning is determined as 7: 00-10: 00 in winter, 6: 30-9: 30 in spring and autumn, and 6: 00-9: 00 in summer according to the sunrise time. The survey was conducted by a sample line method. During investigation, the bird species and the number of wild birds seen and heard in the plots were recorded using 8 to 10-fold binoculars, with the range of 5 to 15 minutes depending on the scale of the plots and the characteristics of the habitat, while the bird species and the number of wild birds seen and heard in the plots were recorded, while traveling at a traveling speed of 1.5 km/h. And calculating the bird density, species abundance and diversity index of each sample plot according to the bird number and classification data recorded by field actual measurement investigation. Bird Density in number of birds per plot area (only/hm)2) To indicate. The diversity index was calculated using the Shannon-Wiener index formula, i.e. H': one sigma PilogPiWherein P isiIs the ratio of the number of individuals of species i to the total number of all species. The number, density and diversity of bird species in the green land beside the street and other green lands are compared by using Microsoft Excel and IBM SPSS19.0FOR WINDOWS statistical analysis software, and ANOVA analysis is adopted to carry out the significance test of the difference and discuss the environmental influence factors of bird biological diversity support function.
According to the calculation results, the urban wild birds 10,231 which are surveyed and recorded in the whole area are only counted, and according to the Chinese bird classification and distribution list (third edition), the urban wild birds belong to 47 birds in 25 families of 8 orders, and the number of the birds in different greenbelts has a very significant difference (P is 4.86E-6< 0.01). The green land beside the street was observed to contain 21 birds of 14 families of 3 orders, the number of the birds accounts for 44.68%, which is higher than that of the production green land (16 species) and the comprehensive park (16 species), and is slightly lower than that of the public facility green land (22 species) and the strip-shaped park (24 species) (see fig. 3).
Birds also had very significant differences in density between greens (P ═ 0.009< 0.01). The bird density per unit area of the street green space is higher than that of the comprehensive park, the community park, the strip park, the production green space, the residential green space and the public facilities, which shows that although the area of the street green space is small, the density is high, namely the number of birds attracted per unit area is more (figure 4), so that the street green space also plays an important supporting role in the bird diversity.
Meanwhile, the species abundance of the green land on a single street is between 1 and 10, the average value is 5, and the fluctuation range of the diversity index is large. Compared with the whole species abundance, the whole species abundance of the street greenbelt is higher, but a single plot is lower, the diversity difference of each plot is larger, namely the number of birds attracted to each street greenbelt is limited but different, which preliminarily shows that the landscape difference of the street greenbelt in the research area is larger, and the street greenbelt has different biodiversity support functions for different kinds of birds in urban areas (fig. 5 and 6).
In addition, the difference between the street green land and the residential area and the business office area green land directly adjacent to the periphery is compared by using the abundance of bird species as a comparison index, and as shown in fig. 7, the research finds that: except for 4 samples which cannot be compared, of 19 samples, only 7 samples in 19 samples have lower abundance of bird species than the green land of the adjacent land, wherein 2 is the century major street minor paradise (2, 9), 4 is the residential area along street banded green land (15, 17, 18, 19) with one side adjacent to the street, and 1 is the triangle street corner green land (20) adjacent to the business office. The former two are disturbed by the stream of people and traffic, and have relatively single vegetation, the area of the sample plot 20 is small, the green space rate of the adjacent business office area is not high, and the attraction to birds is limited. The abundance of bird species in the other 12 plots is higher than that in the adjacent plots, and the number of the same bird species recorded in the green lands of the adjacent plots is higher (table 2), further proving that the green lands beside the street in the region have a certain bird biodiversity supporting function. From the similarity with the birds in the green land of the adjacent street, the green land beside the street also has a certain function of 'stepping stone' which is diffused outwards from the areas with rich variety of surrounding birds.
TABLE 2 comparison of bird species abundance and similarity between street greens and their neighborhood greens
Example 3
In example 2, 7 triangular street greenbelts were selected as a sample for detailed study from among 23 street greenbelts based on the following: (1) has a certain scale (area of 1,500 m)2Above) in order to form relatively complex biological communities; (2) the greenbelts beside the selected street are all grounded with the residential grounds of the second type with similar development strength, so that the influence caused by different development strengths of the neighboring residential districts is avoided; (3) at least one boundary interfaces the common or roadway in order to examine the effect of human interference activity. The selected greenfield position is shown in fig. 8.
The 7 triangular street greenbelts can be divided into an extreme street greenbelt (like 3, 5, 6, 8, 12) and an embedded street greenbelt (like 11, 21)2 according to the spatial relationship between the street greenbelts and the roads and surrounding plots. Although the interference interface of the street green land is larger than the adjacent interface, the interference interface of the embedded street green land is smaller than the adjacent interface (figure 9).
As shown in fig. 10, the analysis results indicated that the street greens were slightly more abundant in avian species than the adjoining dwellings, but did not have significant differences (P ═ 0.192> 0.05). The species abundance of the four sample plots 3, 5, 6 and 8 with larger green patch areas is about half less than that of the three sample plots 11, 12 and 21 and is almost the same as that of the adjacent residential areas, and the species abundance of the last three roadside green areas is obviously better than that of the adjacent residential areas, namely, the species diversity of the whole plot is supported. The research on the vegetation structure discovers that the species abundance of 7 street greenbelts has no obvious correlation influence effect on the vegetation coverage area, height and variety.
The interference interface and the adjacent interface of the green land beside the street are measured based on an AutoCAD topographic map and field exploration, the ratio of the interference interface and the adjacent interface is calculated, if the ratio is more than 1, the interference influence is larger than the adjacent influence, and if the ratio is less than 1, the reverse is true. As a result of the study, it was found that the mean value and the median value (7) of the abundance of species of the street greens having the interference/adjacent interface smaller than 1 are both greater than those of the street greens having the interference/adjacent interface larger than 1 (mean value 6.33 and median value 5) (fig. 11), and although there is no significant difference (P0.565 >0.05), overall, it is relatively more advantageous for the variety of birds in the street greens to shorten the interference boundary as much as possible and increase the adjacent boundary, that is, to dispose the embedded street greens as much as possible rather than the extreme street greens.
Of the 7 plots, plots 3 and 5 had a substantially comparable interference/adjacent interface ratio to plots 11 and 21, but the species abundance differed by half, and the birds of the latter were more abundant than the adjacent plots, while the former was substantially equal. Further analysis has found that this may be related to the vegetation space allocation of the two types of greens. The vegetation space configuration canopy density of the latter is higher, and the planting position of the tall and big arbor of the first floor is closer to the interference boundary, therefore the tall and big arbor layer has formed certain interference killing feature to external human activities, and has offered abundant and safe habitat space for birds through luxuriant branches and leaves. See in particular fig. 12a and 12 b.
In summary, according to the urban street green space vegetation space configuration method based on the biodiversity support function, the capacity of resisting external interference pressure of the street green space is enhanced by controlling the distance of the exit of the arbor area, the ratio of the greening coverage area of the arbor area, the average height of the arbor area and the like, a safe shelter space with high canopy density is provided for birds, the biodiversity of the street green space is improved, and a life community with harmonious and natural coexistence is constructed. Therefore, the invention effectively overcomes various defects in the prior art and has high industrial utilization value.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A space configuration method of green land vegetation beside a city street based on a biodiversity support function comprises the following steps:
1) arranging a street green land in a city, wherein at least one side of the street green land is close to urban road land, and the street green land is internally provided with a shrub area and an arbor area in sequence from the urban road land;
2) configuration DtSo that it conforms to the formula (1),
the formula (1) is: a ═ Dt/D
Wherein D istThe distance of the boundary receding of the arbor area; a is the arbor withdrawal rate of the green land beside the street; d is the depth distance of the green land beside the street;
3) at, As and Ah are arranged so As to satisfy the formula (2),
the formula (2) is: r ═ At + As + Ah)/Sq
Wherein R is the greening coverage area ratio of the arbor area; at is the arbor coverage area in the arbor area; as is the shrub coverage area in the arbor region; ah is the ground coverage area in the arbor area; sqThe area of the arbor region;
4) configuring the arbor plant to conform to equation (3),
the formula (3) is: ht＝∑(at×ht)/∑ht
Wherein HtAverage height of arbor region; h istHeight of t arbor; a istThe number of plants of the t arbor;
in the step 1), when the shrub area is located in a street green area in a sight distance triangle at a road corner, the height of all greenery in the shrub area is less than or equal to 0.7 m;
in the step 2), when the depth D of the green land beside the street is less than or equal to 6m, the jungle junction withdrawal rate A is less than or equal to 0.7; when the depth distance D of the green land beside the street is more than 6m and is less than or equal to 15m, the jungle junction withdrawal rate A is less than or equal to 0.6; when the depth distance D of the green land beside the street is more than 15m, the jungle junction withdrawal rate A is less than or equal to 0.5;
in the step 3), the greening coverage area ratio R in the arbor area is more than or equal to 2;
in step 4), the average height H in the arbor areat≥12m。
2. The method for spatial arrangement of green land vegetation beside urban street based on biodiversity support function as claimed in claim 1), wherein in step 1), the urban road land is selected from one or more of express way, main road, secondary road, branch road and intersection land, roadway, sidewalk, division strip, green land.
3. The method for spatial arrangement of green vegetation beside a city street based on biodiversity support function as claimed in claim 1, wherein in step 1), the afforestation planted in the shrub area is ground cover and shrub.
4. The spatial arrangement method of urban street green vegetation based on biodiversity support function according to claim 1, characterized in that in step 1), the afforestation planted in the arbor area is ground cover, shrub and arbor.
5. The method of claim 4, wherein the arbor is a food-borne native plant, and the arbor is planted in the shade of the canopy.
6. The urban street green land is characterized in that the urban street green land vegetation space configuration method based on the biodiversity support function is configured and obtained according to any one of claims 1 to 5.
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| CN102635075A (en) * | 2012-05-10 | 2012-08-15 | 南京林业大学 | Plant configuration used for urban road traffic noise reduction |
| CN105580627A (en) * | 2015-12-21 | 2016-05-18 | 广西丰景园林建设工程有限公司 | Greening method for improving urban rainwater interception function |
| CN107950267A (en) * | 2017-10-11 | 2018-04-24 | 深圳市城市规划设计研究院有限公司 | A kind of construction method of the multifarious Urban Parks of imitative natural biology |
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| CN102635075A (en) * | 2012-05-10 | 2012-08-15 | 南京林业大学 | Plant configuration used for urban road traffic noise reduction |
| CN105580627A (en) * | 2015-12-21 | 2016-05-18 | 广西丰景园林建设工程有限公司 | Greening method for improving urban rainwater interception function |
| CN107950267A (en) * | 2017-10-11 | 2018-04-24 | 深圳市城市规划设计研究院有限公司 | A kind of construction method of the multifarious Urban Parks of imitative natural biology |
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