CN103485248B - A kind of parkway being suitable for city parallel type street canyon - Google Patents
A kind of parkway being suitable for city parallel type street canyon Download PDFInfo
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- CN103485248B CN103485248B CN201310347682.9A CN201310347682A CN103485248B CN 103485248 B CN103485248 B CN 103485248B CN 201310347682 A CN201310347682 A CN 201310347682A CN 103485248 B CN103485248 B CN 103485248B
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Abstract
The invention discloses a kind of parkway being suitable for city parallel type street canyon, the section structure in parkway is followed successively by single file avenue tree forest belt, nonmotorized vehicle lane, bicycle isolation greenbelt, motorway, motor-driven isolation greenbelt, motorway, bicycle isolation greenbelt, nonmotorized vehicle lane and single file avenue tree forest belt; Motor-driven isolation greenbelt is that height that " high large-scale patch combined type " isolates isolation greenbelt, interval, greenbelt " short dredging open " interlocks motor-driven isolation greenbelt, micro-valley; Non-maneuver isolation greenbelt is " sparse woods presbyopic glasses formula " non-maneuver isolation greenbelt.The present invention effectively can cut down sidewalk and nonmotorized vehicle lane pedestrian breathing area atmosphere pollution (NO in parallel street canyon parkway
xand SO
2) concentration, reach purifying city surrounding air, improve the object of urban forest arbor environmental quality; Method is simple, and cost is lower, is easy to build, and is suitable for promoting in city.
Description
Technical field
The present invention relates to field of garden technology, particularly relate to a kind of parkway being suitable for city parallel type street canyon.
Background technology
Along with expanding economy, the increase of the population density, big-and-middle-sized vehicle guaranteeding organic quantity increases fast, and the pollution that in Dispersion in Urban Street Canyon, traffic brings also continues soaring, directly has influence on the quality of life of townsfolk.And traffic gaseous contaminant is mainly derived from the exhaust emissions of all kinds of motor vehicle in Dispersion in Urban Street Canyon, wherein mainly sulfur dioxide (SO
2) and nitrogen oxide (NO
x) satisfy the need territory environmental danger, particularly avenue both sides, the air within horizontal range 50m and in height below 1.7m scope, this scope is also in the breathing area of pedestrian, directly affects the health of pedestrian and surrounding resident.Therefore, the roadside greening configuration mode how be suitable for according to different street canyon formal character improves Greening Urban Road ecological effect, landscape effect and reduces the dusty gas delay effect that roadside greening may cause, reduce roadway pollution to the ecological hazard of townsfolk especially road pedestrian, become and built ecocity, a difficult problem of building a harmonious society.
Through finding prior art retrieval, the gentle Zhang Yunxiang of Wang Hui, Guo Jin is at " green belt along highway purification roadside SO
2, NO
2effect and influence factor " (Agricultural University Of Shanxi's journal, 2012, 32), Feng Jianjun, Shen Jiafen and Su Kaijun is at " performance analysis of Guangzhou roadside greening mode environment " (urban environment urban ecology, 2001, 14), Du Zhenyu, Xing Shangjun, Song Yumin and Zhang Jianfeng is at " Shandong Province's expressway greening is studied the clean-up effect of air " (Shandong forestry science and technology, 2006, 3), Shen Jiafen, Su Kaijun and Feng Jianjun " Study on Anti-pollution Patterns of Road Green " (urban environment urban ecology, 2001, 14) pergola on the city road and afforestation mode has all been spoken of in atmosphere pollution (NO
xand SO
2) method of concentration purification, mainly: city different types of structure greenbelt, different greenbelt configuration mode are to atmosphere pollution (NO
xand SO
2) aspect such as concentration purification, but research is all confined to pergola on the city road and greenbelt configuration mode to atmosphere pollution (NO
xand SO
2) concentration purification qualitative description on, all there is no to provide a concrete decay atmosphere pollution (NO in the parallel type street canyon of city
xand SO
2) parkway of concentration.
Therefore, those skilled in the art is devoted to develop a kind of parkway be suitable in the parallel type street canyon of city, the concentration of atmosphere pollution in the street environment of purifying city, improves urban forest arbor ambient air quality.
Summary of the invention
Because the above-mentioned defect of prior art, technical problem to be solved by this invention is the structure in board-like from road in the parallel type street canyon of city, avenue tree and machine non-isolated greenbelt, propose in Plant choosing and configuration etc. isolation greenbelt and be suitable for atmosphere pollution (NO in the parallel type street canyon of city
xand SO
2) parkway of concentration abatement, reach purifying city street environment air, improve the object of urban forest arbor ambient air quality.
For achieving the above object, the invention provides a kind of parkway being suitable for city parallel type street canyon, comprise single file avenue tree forest belt, non-maneuver isolation greenbelt and motor-driven isolation greenbelt; Wherein,
The section structure in parkway is followed successively by single file avenue tree forest belt, nonmotorized vehicle lane, bicycle isolation greenbelt, motorway, motor-driven isolation greenbelt, motorway, bicycle isolation greenbelt, nonmotorized vehicle lane and single file avenue tree forest belt;
Motor-driven isolation greenbelt is that height that " high large-scale patch combined type " isolates isolation greenbelt, interval, greenbelt " short dredging open " interlocks motor-driven isolation greenbelt, micro-valley;
Non-maneuver isolation greenbelt is " sparse woods presbyopic glasses formula " non-maneuver isolation greenbelt.
Further, parallel type street canyon is the same or similar valleys of depth of building, both sides, street, and the depth-width ratio in described valley is 0.6:1 ~ 1:1.
Further, the length in street is greater than 500m(rice), width is 25 ~ 30m.
Further, the width in single file avenue tree forest belt is 1.5 ~ 1.8m; The width in non-maneuver isolation greenbelt is 1.5 ~ 2.0m; The width in motor-driven isolation greenbelt is 3.0 ~ 4.0m.
Further, " high large-scale patch combined type " is isolated greenbelt and is arranged as upper strata with evergreen megaphanerophyte and fallen leaves megaphanerophyte ' Pin '-shaped, is combined as middle level, with the resistance to cloudy perennial herb of evenly planting for lower floor with evergreen shrubs and machaka plate combined type.
Further, " short dredging is open " isolation greenbelt is with the evergreen shrubs of sparse even plantation for upper strata, and the equally distributed dried rhizome of rehmannia is for many years lower floor by draft.
Further, " high large-scale patch combined type " isolates greenbelt length is 12.5 ~ 15.0m, and wide is 3.0 ~ 4.0m; " short dredging is open " isolation greenbelt length is 10.0 ~ 12.0m, and wide is 3.0 ~ 4.0m.
Further, " sparse woods presbyopic glasses formula " non-maneuver isolation greenbelt with the defoliation small arbor of sparse even plantation for upper strata, with the evergreen of dense planting or half evergreen shrubs for lower floor.
Further, single file avenue tree forest belt is that fallen leaves megaphanerophyte point-like is evenly planted.
Further, the plant in parkway is indigenous plant, meets the requirement that Greening Urban Road is built.
In better embodiment of the present invention, in the parallel type street canyon of city, build length be greater than 500m, width is the middle traffic type parkway system having isolation greenbelt of four width formulas of 25 ~ 30m, parallel type valley is the valley that both sides depth of building is more or less the same, and valley depth-width ratio (W/H) is 0.6:1 ~ 1:1.Roadway is divided into four by four have in the middle of width formulas the traffic type parkway system in isolation greenbelt to comprise height that one " high large-scale patch combined type " isolate interval, greenbelt " short dredging is open " isolation greenbelt interlocks motor vehicle isolation greenbelt, micro-valley, two " sparse woods presbyopic glasses formula " bicycles isolation greenbelts, centre is motorway, both sides are nonmotorized vehicle lane, and the single file avenue tree together with both sides, track is five forest belts altogether.
The structure of single file avenue tree is specially: fallen leaves megaphanerophyte " point-like " are evenly planted, height 8.0 ~ 10.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.20 ~ 0.30m, clear bole height 3.0 ~ 3.5m, hat 6.0 ~ 7.0m, spacing in the rows 6.0 ~ 8.0m.Described fallen leaves megaphanerophyte comprises plane tree, beech tree.
Bicycle " sparse woods presbyopic glasses formula " isolates greenbelt structure for tall-filling multilayer structure, upper strata: defoliation small arbor " point-like " is evenly planted, height 2.5 ~ 3.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.05 ~ 0.10m, hat 0.8 ~ 1.0m, spacing in the rows 2.0 ~ 3.0m, described defoliation small arbor comprises red maple, prunus cerasifera; Lower floor: evergreen half evergreen " presbyopic glasses formula hedgerow " shrub dense planting, be highly 0.5 ~ 0.7m, width is 1.4 ~ 1.8m, and described evergreen or half evergreen shrubs, comprises little leaf boxwood, Ligustrum vicaryi.
Motor vehicle isolation greenbelt, height staggered micro-valley comprises " high large-scale patch combined type " and isolates greenbelt and " short dredging is open " isolation greenbelt, wherein,
" high large-scale patch combined type " isolates greenbelt for Qiao-filling-careless multilayer structure, upper strata: evergreen fallen leaves are mixed hands over megaphanerophyte " Chinese character pin-shaped " arrangement, height 5.0 ~ 7.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.15 ~ 0.25m, clear bole height 2.5 ~ 3.0m, hat 3.5 ~ 4.5m, spacing in the rows 4.0 ~ 5.0m, the number ratio of aiphyllium and deciduous tree is 2:1.Described aiphyllium comprises fragrant camphor tree, wide yulan.Described deciduous tree comprises Chinese ash, Luan Shu, Chinese tallow tree.Middle level: evergreen machaka plate combined type combination, height 2.0 ~ 2.5m, hat 1.5 ~ 2.5m, spacing in the rows 2.0 ~ 2.5m, evergreen shrubs and machaka number ratio are 3:2, and described evergreen shrubs comprises oleander, sweet osmanthus; Described machaka comprises crape myrtle, the rose of Sharon.Lower floor: resistance to cloudy perennial herb is evenly planted, height 0.2 ~ 0.3m, spacing in the rows is 0.10 ~ 0.20m, and described resistance to cloudy perennial herb comprises jade hairpin, liriope platyphylia Wang et Tang.
" short dredging is open " motor vehicle isolation greenbelt is filling-careless multilayer structure, upper strata: the sparse even plantation of evergreen shrubs, height 0.4 ~ 0.5m, hat 0.6 ~ 0.7m, and spacing in the rows is 1.0 ~ 2.0m, and described evergreen shrubs comprises pittosporum tobira, little leaf boxwood; Lower floor: the dried rhizome of rehmannia is evenly planted by draft for many years, be highly 0.15 ~ 0.3m, spacing in the rows is 0.20 ~ 0.30m, and the described dried rhizome of rehmannia is for many years comprised petunia, pot marigold, cockscomb by draft.
The present invention is based on NO in the parallel type street canyon of city
xand SO
2space distribution rule, select pollutant (NO
xand SO
2) absorb stronger seeds, in the machine non-isolated greenbelt in street, configuration is tall fills with careless multilayer structure, by plants towards atmospheric pollution thing (NO
xand SO
2) clean-up effect, abatement street pollutant; By configuration " high large-scale patch combined type " interval " short dredging is open " structure of community in motor vehicle isolation greenbelt, and select applicable motor vehicle " high large-scale patch combined type " and interval " short is dredged open " to isolate greenbelt length ratio, form the structure that height interleaved is different in size, promote the horizontal movement of street and ambient air, produce one " micro-valley effect ", be conducive to Motor vehicle exhaust pollutant (NO
xand SO
2) horizontal proliferation, thus reduce motorway atmosphere pollution (NO
xand SO
2) concentration.The sparseness structure that greenbelt configuration mode forms ecotone is isolated additionally by motorway " high large-scale patch combined type " and interval " short is dredged open ", tail gas pollution of motor-driven vehicle gas is spread quickly, do not produce a large amount of delays, isolate the blocking effect of greenbelt to tail gas pollution of motor-driven vehicle gas by bicycle " sparse woods presbyopic glasses formula " simultaneously, cut down atmosphere pollution (NO in pedestrian's breathing area (1.5 ~ 1.7m) of sidewalk and nonmotorized vehicle lane to greatest extent
xand SO
2) concentration.In the parallel street canyon in multiple strengthening city, machine non-isolated greenbelt Qiao fills with the blocking effect of careless duplicated configuration clean-up effect, motor vehicle isolation greenbelt " micro-valley effect " and bicycle isolation greenbelt " hedgerow ", cuts down sidewalk and nonmotorized vehicle lane pedestrian breathing area atmosphere pollution (NO in parallel street canyon parkway to greatest extent
xand SO
2) concentration.Compared with conventional street afforestation mode, NO can be reduced
xconcentration 1.2 ~ 1.6 times, reduces SO
2concentration 1.5 ~ 1.8 times, reaches purifying city surrounding air, improves the object of urban forest arbor environmental quality.The inventive method is simple, and cost is lower, is easy to build, and is suitable for promoting in city.
Be described further below with reference to the technique effect of accompanying drawing to design of the present invention, concrete structure and generation, to understand object of the present invention, characteristic sum effect fully.
Accompanying drawing explanation
Fig. 1 is theory structure profile of the present invention;
Fig. 2 is theory structure plan view of the present invention;
Fig. 3 is bicycle of the present invention isolation greenbelt sectional drawing;
Fig. 4 is motor vehicle of the present invention isolation greenbelt sectional drawing.
Detailed description of the invention
As illustrated in fig. 1 and 2, be respectively theory structure profile of the present invention and plan view, can find out, the present invention builds length to be greater than 500m in the parallel type street canyon of city, and width is the middle traffic type parkway system having isolation greenbelt of four width formulas of 25 ~ 30m.Wherein, parallel type street canyon is the highly same or similar valley of both sides building 1, and valley depth-width ratio (W/H) is 0.6:1 ~ 1:1.There is the traffic type parkway in isolation greenbelt in the middle of four width formulas, comprise single file avenue tree forest belt 2, non-maneuver isolation greenbelt 3 and motor-driven isolation greenbelt 4.The section structure in parkway is followed successively by single file avenue tree forest belt 2, nonmotorized vehicle lane 5, bicycle isolation greenbelt 3, motorway 6, motor-driven isolation greenbelt 4, motorway 6, bicycle isolation greenbelt 3, nonmotorized vehicle lane 5 and single file avenue tree forest belt 2.
Further, the width in single file avenue tree forest belt 2 is 1.5 ~ 1.8m; The width in non-maneuver isolation greenbelt 3 is 1.5 ~ 2.0m; The width in motor-driven isolation greenbelt 4 is 3.0 ~ 4.0m.
Single file avenue tree forest belt 2 is that fallen leaves megaphanerophyte point-like is evenly planted.
Bicycle of the present invention isolation greenbelt sectional drawing as shown in Figure 3, non-maneuver isolation greenbelt 3 be that " sparse woods presbyopic glasses formula " non-maneuver isolates greenbelt, with the defoliation small arbor of sparse even plantation for upper strata 31, with the evergreen of dense planting or half evergreen shrubs for lower floor 32.
Motor vehicle isolation greenbelt of the present invention sectional drawing as shown in Figure 4, motor-driven isolation greenbelt 4 isolates the staggered motor-driven isolation greenbelt, micro-valley of height, interval, greenbelt 41 " short dredging is open " isolation greenbelt 42 for " high large-scale patch combined type ".Wherein, " high large-scale patch combined type " is isolated greenbelt 41 and is arranged as upper strata 411 with evergreen megaphanerophyte and fallen leaves megaphanerophyte ' Pin '-shaped, middle level 412 is combined as, with the resistance to cloudy perennial herb of evenly planting for lower floor 413 with evergreen shrubs and machaka plate combined type; " high large-scale patch combined type " is isolated greenbelt 41 and is configured to high megaphanerophyte formation background tree, and form group's patch combination one by one with medium-sized shrub in prospect, have certain space between group's patch, overall density combines; Length is 12.5 ~ 15.0m, and wide is 3.0 ~ 4.0m." short dredging is open " isolation greenbelt 42 is with the evergreen shrubs of sparse even plantation for upper strata 421, and the equally distributed dried rhizome of rehmannia is for many years lower floor 422 by draft; " short dredging is open " isolation greenbelt 42 length is 10.0 ~ 12.0m, and wide is 3.0 ~ 4.0m.
Embodiment 1
Build in the parallel street canyon in Putuo District Shanghai one wide be the parkway of 25m, street canyon the ratio of width to height (W/H)=0.6:1.
" the high large-scale patch combined type " of motor vehicle isolates greenbelt 41 long is 12.5m, and " short dredging is open " isolation greenbelt 42 is long is 10.0m, and wide is 3.0m;
Street section structure:
Single file avenue tree forest belt 2(width is 1.5m)---greenbelt 3(width isolated by bicycle " sparse woods presbyopic glasses formula " is 2.5m)---" short dredging is open " height staggered isolation greenbelt, motor vehicle " high large-scale patch combined type " interval 4(width is 3.0m)---greenbelt 3(width isolated by bicycle " sparse woods presbyopic glasses formula " is 2.5m)---single file avenue tree forest belt 2(width is 1.5m)
The structure in single file avenue tree forest belt 2:
Fallen leaves megaphanerophyte " point-like " are evenly planted, height 8.0 ~ 10.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.20 ~ 0.30m, clear bole height 3.0 ~ 3.5m, hat 6.0 ~ 7.0m, spacing in the rows 6.0m.Described fallen leaves megaphanerophyte comprises plane tree, beech tree.
The structure in bicycle isolation greenbelt 3 is " sparse woods presbyopic glasses formula " Qiao-filling-multilayer structure:
Upper strata 31: defoliation small arbor " point-like " is evenly planted, height 2.5 ~ 3.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.05 ~ 0.10m, hat 0.8 ~ 1.0m, spacing in the rows 2.0m, described defoliation small arbor, comprising: red maple, prunus cerasifera;
Lower floor 32: evergreen " presbyopic glasses formula hedgerow " shrub dense planting, be highly 0.5 ~ 0.7m, width is 1.4m, and described evergreen shrubs comprises little leaf boxwood, Ligustrum vicaryi;
" high large-scale patch combined type " motor vehicle isolation greenbelt 41, is divided into three layers, is specially:
Upper strata 411: evergreen fallen leaves are mixed hands over megaphanerophyte " Chinese character pin-shaped " arrangement, height 5.0 ~ 7.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.15 ~ 0.20m, clear bole height 2.5 ~ 3.0m, hat 3.0 ~ 4.5m, spacing in the rows 4.0m, aiphyllium: deciduous tree number ratio=2:1.Described aiphyllium comprises fragrant camphor tree, wide yulan.Described deciduous tree comprises Chinese ash, Luan Shu, Chinese tallow tree.
Middle level 412: evergreen machaka plate combined type combination, height 2.0 ~ 2.5m, hat 1.5 ~ 2.5m, spacing in the rows 2.0m, evergreen shrubs: machaka number ratio=3:2, described evergreen shrubs comprises oleander, sweet osmanthus; Described machaka comprises crape myrtle, the rose of Sharon.
Lower floor 413: resistance to cloudy perennial herb is evenly planted, height 0.2 ~ 0.3m, spacing in the rows is 0.1m, and described resistance to cloudy perennial herb comprises jade hairpin, liriope platyphylia Wang et Tang.
" short dredging is open " motor vehicle isolation greenbelt 42, is divided into two-layer, is specially:
Upper strata 421: the sparse even plantation of evergreen shrubs, height 0.4 ~ 0.5m, hat 0.6 ~ 0.7m, spacing in the rows is 1.0m, and described evergreen shrubs comprises pittosporum tobira, little leaf boxwood;
Lower floor 422: the dried rhizome of rehmannia is evenly planted by draft for many years, be highly 0.15 ~ 0.3m, spacing in the rows is 0.20m, and the described dried rhizome of rehmannia is for many years comprised petunia, pot marigold, cockscomb by draft.
According to above design, compared with roadside greening in conventional parallel street canyon, pedestrian's breathing area NO under parkway can be reduced
xconcentration 1.2 times, and SO
2concentration 1.5 times, achieves cleaning ambient air quality, improves the effect of urban forest arbor environmental quality.
Embodiment 2
Build in the parallel street canyon in Shanghai Pudong New Area one wide be the parkway of 30m, street canyon the ratio of width to height (W/H)=0.8:1.
It is 14m that motor vehicle " high large-scale patch combined type " is isolated greenbelt 41 long, and " short dredging is open " isolation greenbelt 42 is long is 11.2m, and wide is 3.5m;
Street section structure:
Single file avenue tree forest belt 2(width is 1.6m)---greenbelt 3(width isolated by bicycle " sparse woods presbyopic glasses formula " is 1.8m)---" short dredging is open " height staggered isolation greenbelt, motor vehicle " high large-scale patch combined type " interval 4(width is 3.5m)---greenbelt 3(width isolated by bicycle " sparse woods presbyopic glasses formula " is 1.8m)---single file avenue tree forest belt 2(width is 1.6m)
The structure in single file avenue tree forest belt 2:
Fallen leaves megaphanerophyte " point-like " are evenly planted, height 8.0 ~ 10.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.20 ~ 0.30m, clear bole height 3.0 ~ 3.5m, hat 6.0 ~ 7.0m, spacing in the rows 6.5m.Described fallen leaves megaphanerophyte comprises plane tree, beech tree.
Bicycle isolation greenbelt 3 structure: be " sparse woods presbyopic glasses formula " Qiao-filling-multilayer structure:
Upper strata 31: defoliation small arbor " point-like " is evenly planted, height 2.5 ~ 3.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.05 ~ 0.10m, hat 0.8 ~ 1.0m, spacing in the rows 2.5m, described defoliation small arbor comprises red maple, prunus cerasifera;
Lower floor 32: evergreen " presbyopic glasses formula hedgerow " shrub dense planting, be highly 0.5 ~ 0.7m, width is 1.6m, and described evergreen shrubs, comprising: little leaf boxwood, Ligustrum vicaryi;
" high large-scale patch combined type " motor vehicle isolation greenbelt 41, is divided into three layers, is specially:
Upper strata 411: evergreen fallen leaves are mixed hands over megaphanerophyte " Chinese character pin-shaped " arrangement, height 5.0 ~ 7.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.15 ~ 0.20m, clear bole height 2.5 ~ 3.0m, hat 3.0 ~ 4.5m, spacing in the rows 4.5m, aiphyllium: deciduous tree number ratio=2:1.Described aiphyllium comprises fragrant camphor tree, wide yulan.Described deciduous tree comprises Chinese ash, Luan Shu, Chinese tallow tree.
Middle level 412: evergreen machaka plate combined type combination, height 2.0 ~ 2.5m, hat 1.5 ~ 2.5m, spacing in the rows 2.3m, evergreen shrubs: machaka number ratio=3:2, described evergreen shrubs comprises oleander, sweet osmanthus; Described machaka comprises crape myrtle, the rose of Sharon.
Lower floor 413: resistance to cloudy perennial herb is evenly planted, height 0.2 ~ 0.3m, spacing in the rows is 0.15m, and described resistance to cloudy perennial herb comprises jade hairpin, liriope platyphylia Wang et Tang.
" short dredging is open " motor vehicle isolation greenbelt 42, is divided into two-layer, is specially:
Upper strata 421: the sparse even plantation of evergreen shrubs, height 0.4 ~ 0.5m, hat 0.6 ~ 0.7m, spacing in the rows is 1.5m, and described evergreen shrubs comprises pittosporum tobira, little leaf boxwood, spills golden peach jaurel;
Lower floor 422: the dried rhizome of rehmannia is evenly planted by draft for many years, be highly 0.15 ~ 0.3m, spacing in the rows is 0.25m, and the described dried rhizome of rehmannia is for many years comprised petunia, pot marigold, cockscomb by draft.
According to above design, compared with roadside greening in conventional parallel street canyon, pedestrian's breathing area NO under parkway can be reduced
xconcentration 1.4 times, and SO
2concentration 1.6 times, achieves cleaning ambient air quality, improves the effect of urban forest arbor environmental quality.
Embodiment 3
Build in the parallel street canyon in Jiading district in Shanghai one wide be the parkway of 30m, street canyon the ratio of width to height (W/H)=1:1.
It is 15m that motor vehicle " high large-scale patch combined type " is isolated greenbelt long, and " short dredging is open " isolation greenbelt is long is 12m, and wide is 4.0m;
Street section structure:
Single file avenue tree forest belt 2(width is 1.8m)---greenbelt 3(width isolated by bicycle " sparse woods presbyopic glasses formula " is 2.0m)---" short dredging is open " height staggered isolation greenbelt, motor vehicle " high large-scale patch combined type " interval 4(width is 5.0m)---greenbelt 3(width isolated by bicycle " sparse woods presbyopic glasses formula " is 2.0m)---single file avenue tree forest belt 2(width is 1.8m)
The structure in single file avenue tree forest belt 2:
Fallen leaves megaphanerophyte " point-like " are evenly planted, height 8.0 ~ 10.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.20 ~ 0.30m, clear bole height 3.0 ~ 3.5m, hat 6.0 ~ 7.0m, spacing in the rows 7.0m.Described fallen leaves megaphanerophyte comprises plane tree, beech tree.
Bicycle isolation greenbelt 3 structure: be " sparse woods presbyopic glasses formula " Qiao-filling-multilayer structure:
Upper strata 31: defoliation small arbor " point-like " is evenly planted, height 2.5 ~ 3.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.05 ~ 0.10m, hat 0.8 ~ 1.0m, spacing in the rows 3.0m, described defoliation small arbor comprises red maple, prunus cerasifera;
Lower floor 32: evergreen " presbyopic glasses formula hedgerow " shrub dense planting, be highly 0.5 ~ 0.7m, width is 1.8m, and described evergreen shrubs comprises little leaf boxwood, Ligustrum vicaryi;
" high large-scale patch combined type " motor vehicle isolation greenbelt 41, is divided into three layers, is specially:
Upper strata 411: evergreen fallen leaves are mixed hands over megaphanerophyte " Chinese character pin-shaped " arrangement, height 5.0 ~ 7.0m, the diameter of a cross-section of a tree trunk 1.3 meters above the ground 0.15 ~ 0.20m, clear bole height 2.5 ~ 3.0m, hat 3.5 ~ 4.5m, spacing in the rows 5.0m, aiphyllium: deciduous tree number ratio=2:1.Described aiphyllium comprises fragrant camphor tree, wide yulan.Described deciduous tree comprises Chinese ash, Luan Shu, Chinese tallow tree.
Middle level 412: evergreen machaka plate combined type combination, height 2.0 ~ 2.5m, hat 1.5 ~ 2.5m, spacing in the rows 2.5m, evergreen shrubs: machaka number ratio=3:2, described evergreen shrubs comprises oleander, sweet osmanthus; Described machaka comprises crape myrtle, the rose of Sharon.
Lower floor 413: resistance to cloudy perennial herb is evenly planted, height 0.2 ~ 0.3m, spacing in the rows is 0.20m, and described resistance to cloudy perennial herb comprises jade hairpin, liriope platyphylia Wang et Tang.
" short dredging is open " motor vehicle isolation greenbelt 42, is divided into two-layer, is specially:
Upper strata 421: the sparse even plantation of evergreen shrubs, height 0.4 ~ 0.5m, hat 0.6 ~ 0.7m, spacing in the rows is 2.0m, and described evergreen shrubs comprises pittosporum tobira, little leaf boxwood;
Lower floor 422: the dried rhizome of rehmannia is evenly planted by draft for many years, be highly 0.15 ~ 0.3m, spacing in the rows is 0.3m, and the described dried rhizome of rehmannia is for many years comprised petunia, pot marigold, cockscomb by draft.
According to above design, compared with roadside greening in conventional parallel street canyon, pedestrian's breathing area NO under parkway can be reduced
xconcentration 1.6 times, and SO
2concentration 1.8 times, achieves cleaning ambient air quality, improves the effect of urban forest arbor environmental quality.
More than describe preferred embodiment of the present invention in detail.Should be appreciated that the ordinary skill of this area just design according to the present invention can make many modifications and variations without the need to creative work.Therefore, all technician in the art, all should by the determined protection domain of claims under this invention's idea on the basis of existing technology by the available technical scheme of logical analysis, reasoning, or a limited experiment.
Claims (6)
1. be suitable for a parkway for city parallel type street canyon, comprise single file avenue tree forest belt, non-maneuver isolation greenbelt and motor-driven isolation greenbelt; It is characterized in that,
The section structure in parkway is followed successively by single file avenue tree forest belt, nonmotorized vehicle lane, bicycle isolation greenbelt, motorway, motor-driven isolation greenbelt, motorway, bicycle isolation greenbelt, nonmotorized vehicle lane and single file avenue tree forest belt;
Described motor-driven isolation greenbelt is that height that " high large-scale patch combined type " isolates isolation greenbelt, interval, greenbelt " short dredging open " interlocks motor-driven isolation greenbelt, micro-valley;
Described non-maneuver isolation greenbelt is " sparse woods presbyopic glasses formula " non-maneuver isolation greenbelt;
Described parallel type street canyon is the same or similar valleys of depth of building, both sides, street, and the depth-width ratio in described valley is 0.6:1 ~ 1:1,
Described bicycle " sparse woods presbyopic glasses formula " isolates greenbelt structure for tall-filling multilayer structure, upper strata: defoliation small arbor " point-like " is evenly planted, and described defoliation small arbor comprises red maple, prunus cerasifera; Lower floor: evergreen or half evergreen " presbyopic glasses formula hedgerow " shrub dense planting, described evergreen or half evergreen shrubs, comprises little leaf boxwood, Ligustrum vicaryi;
Described " high large-scale patch combined type " isolates greenbelt length is 12.5 ~ 15.0m, and wide is 3.0 ~ 4.0m; Described " short dredging is open " isolation greenbelt length is 10.0 ~ 12.0m, and wide is 3.0 ~ 4.0m.
2. be suitable for the parkway of city parallel type street canyon as claimed in claim 1, wherein, the length in described street is greater than 500m, and width is 25 ~ 30m.
3. be suitable for the parkway of city parallel type street canyon as claimed in claim 1, wherein, the width in described single file avenue tree forest belt is 1.5 ~ 1.8m; The width in described non-maneuver isolation greenbelt is 1.5 ~ 2.0m; The width in described motor-driven isolation greenbelt is 3.0 ~ 4.0m.
4. be suitable for the parkway of city parallel type street canyon as claimed in claim 1, wherein, described " high large-scale patch combined type " is isolated greenbelt and is arranged as upper strata with evergreen megaphanerophyte and fallen leaves megaphanerophyte ' Pin '-shaped, middle level is combined as, with the resistance to cloudy perennial herb of evenly planting for lower floor with evergreen shrubs and machaka plate combined type.
5. be suitable for the parkway of city parallel type street canyon as claimed in claim 1, wherein, described " short dredging is open " isolation greenbelt is with the evergreen shrubs of sparse even plantation for upper strata, and the equally distributed dried rhizome of rehmannia is for many years lower floor by draft.
6. be suitable for the parkway of city parallel type street canyon as claimed in claim 1, wherein, described single file avenue tree forest belt is that fallen leaves megaphanerophyte point-like is evenly planted.
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| CN105404957A (en) * | 2015-10-29 | 2016-03-16 | 山东省科学院海洋仪器仪表研究所 | Urban greening planning and management system and method |
| CN105724030A (en) * | 2016-03-09 | 2016-07-06 | 上海商学院 | Construction method for ecological healthcare plant community |
| CN107567923A (en) * | 2017-09-20 | 2018-01-12 | 南京林业大学 | One kind absorbs Pollution of City Traffic thing NO2Plant society |
| CN110384014A (en) * | 2018-04-19 | 2019-10-29 | 新疆农垦科学院 | A kind of implantation methods in the water-saving gardens in Northwest arid district |
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