CN105746155B - A kind of greening method being suitable under the afforestation forest of north city - Google Patents
A kind of greening method being suitable under the afforestation forest of north city Download PDFInfo
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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Abstract
The present invention relates to a kind of greening method being suitable under the afforestation forest of north city.The technical solution of use is：(1) greening method under trees：Soil improvement, graveling, build enclosure wall, banket, water, settling, mending soil, transplants jade hairpin and management.(2) greening method between trees：Aquifer construction, the moulding of trees periphery, soil improvement, trees periphery slope, which is selected, selects red fescue and the planting of mixing ground cover plant and management of sleeping stem red-spotted stonecrop between mock-strawberry potentilla chinensis, trees slope.The method of the present invention is under conditions of urban planning green space area is constant, pass through special technique measure, the pattern afforested according to cladding, realize the covering of exposed earth's surface green plants under afforestation forest, so not only expand green coverage, and the generation of original exposed surface dust is prevented, so as to improve air quality.
Description
Technical field
It is more particularly to a kind of to be suitable for northern area the present invention relates to a kind of greening technique of the exposed earth's surface of urban afforestation hayashishita
The long-term exposed greening method of urban afforestation hayashishita.This method can effectively increase city's green areas, improve greenery patches quality,
Be avoided that again forest land it is exposed caused by dust pollution.
Background technology
At present, the atmosphere polluting problem in China is very serious, can in particular with industrial waste gas, vehicle exhaust, airborne dust etc.
The increase of the finely ground particles discharge capacity of human body is sucked, causes haze phenomenon to happen occasionally, human health is caused to seriously affect.
Developed country and developing country all pay much attention to the control of environmental pollution.It is dirty that China is taking many kinds of measures to administer air
Dye.
It is one of effective measures by planting green plants on ground to administer and improve air quality.Thus gardens master
Pipe portion door is just taking many kinds of measures to expand city's green areas and is carrying out the control of environmental pollution by every means, such as by pavement and
Isolation strip between car lane is changed to the soft covering of green plants by the hard covering of original cement tile floor.But due to being used by city
The limitation of ground function zoning, irrigation on greenbelt area cannot infinitely expand in city so that green plants is administering and improving city
The effect of air quality gets beat up discount.But in limited greenery area, green plants can just be improved by improving greenery patches quality
Purify the ability of air.For this reason, various regions responsible departments of the government all clearly stipulate that in various large-scale greenery patchess advocate using arbor as
Main, Qiao, filling, rattan, flower, grass knot close cladding afforestation mode.For the greenery patches of high quality, more emphasized in the application of ground cover plant
Its spreadability, diversity, ecological, beautification property and the extensive property required management.
By the investigation statistics to Shenyang City Duo Jia enterprises and institutions garden greenery patches present situation, it is found that most enterprises and institutions are single
The garden greening of position is all not reaching to cladding afforestation mode, causes greenery patches poor quality.Investigation is it has also been found that current garden green belt
The double-deck afforestation mode that is combined with shrub and draft and shrub and herbal three layers of greening mould are aided with sparse single plant arbor
Formula afforestation effect is preferable, and greenery patches surface is not substantially exposed；And based on the urban afforestation forest zone of more plants of arbors, it is either high
Big megaphanerophyte woods still relatively short dungarunga woods, as long as its canopy density reaches more than 50%, most afforestation forest
Under no shrub and herbal growth covering and it is exposed.And greening forest zone averagely accounts for whole garden green coverage in garden greening
50-60%, this not only in a disguised form reduces greenery area and function, while can also produce serious surface dust.Cause this
The main reason for phenomenon is afforestation forest earth's surface since shading contention nutrient ability more compared with strong, tree root is strong, soil permeability
It is poor, drainage effect is bad, it is exposed to result in forest land following table soil intolerant to reasons such as shades for the plant transplanted in addition under forest land.
Using limited planning greenery area, shade plant is introduced by certain technical measures in urban afforestation forest zone,
Can be in the long-term normal growth of afforestation forest earth's surface to improve greenery patches quality, while the generation of forest floor airborne dust is avoided, this
Have important practical significance to curbing environmental pollution, improving air quality.
The content of the invention
The object of the present invention is to provide a kind of method of suitable northern area urban afforestation hayashishita greening, make original almost complete
The exposed urban afforestation hayashishita earth's surface in portion becomes greenery patches.
The technical solution adopted by the present invention is：A kind of method suitable for the greening of northern area urban afforestation hayashishita, method is such as
Under：
(1) greening method under trees
1) classify：Two classes are divided into according to tree breast-height diameter size：Diameter of a cross-section of a tree trunk 1.3 meters above the ground ＜ 20cm are little tree, and the diameter of a cross-section of a tree trunk 1.3 meters above the ground >=20cm is big tree；
2) lower soil improvement is set：Set using base portion trunk as the center of circle greatly, the 0.6-0.8m radius that stretches out is as big tree
Soil improvement area, prior to being sanded in great Shu soil improvements area, thickness 4-6cm, then by the husky soil with 9-11cm under surface layer
Mix；Little tree is using base portion trunk as the center of circle, and the 1.0-1.2m radius that stretches out is as little tree soil improvement area, prior to little tree
Soil improvement sands in area, thickness 1-3cm, is then mixed husky with the soil of 3-5cm under surface layer；
3) graveling：One floor gravel layer of soil upper berth after being improved in great Shu soil improvements area, thickness 4-6cm, gravel
A diameter of 1-1.2cm, paves compacting；Retain the gap that a circle radius is 15-30cm around trunk in little tree soil improvement area,
Loam, one layer of the improvement soil upper berth gravel of interstitial peripheral, thickness 6-8cm are filled out in gap；Gravel diameter 2-4cm stones；
4) enclosure wall is built：A corral is built along the outer border in great Shu soil improvements area or little tree soil improvement area hollow brick
Wall, the enclosure wall set greatly are highly 40-50cm, and the enclosure wall of little tree is highly 30-40cm；
5) banket：Into enclosure wall, soil improvement area bankets, and inserts the fine sand that diameter is less than 0.2mm, thickness 4-5cm first
Compacting, is then filled with turfy soil, and thickness 4-5cm finally inserts planting soil, and planting soil is highly less than on enclosure wall along 2-3cm；
6) water, settle, mend soil：The soil inserted into enclosure wall pour it is permeable once, after its sedimentation after mend planting soil, then
Soil is mended in the sedimentation that rewaters, until no longer sinking；
7) variety selection in enclosure wall：Under the afforestation forest tree of 70%≤canopy density≤95%, the plant of selection is flower of Sword-like Plantainlily
With golden-rimmed jade hairpin, the two mixed planting ratio is 3:2；Under 50% ＜ canopy density ＜, 70% afforestation forest trees, the plant of selection is northeast
Jade hairpin and white jade hairpin, the two mixed planting ratio are 1:2；
8) enclosure wall implants planting：In northern area April, 2-3 bud of jade hairpin is divided into one section, seeding row spacing 25-
30cm, carries out planting；
9) manage：Jade hairpin survives rear low level management, after aerial part is withered in early November then, cuts dead leaf and removes
The dry branches and fallen leaves of trees, layer overlay gravel, thickness 2-3cm, gravel diameter 0.5-0.6cm, no longer needs graveling later,
It is annual to need to remove 1-2 dry branches and fallen leaves.
(2) greening method between trees
1) aquifer is built：Enclosure wall periphery be laid with one circle gravel layer, width 8-10cm, highly less than on enclosure wall along 5-
7cm, spreads one layer of rough sand above gravel layer, thickness 2-4cm, rough sand grains of sand diameter 0.1-0.3cm, then repave it is husky in one layer,
In rustle a diameter of 0.25-0.5mm of grain, thickness to on enclosure wall along concordant；
2) enclosure wall periphery moulding：Aquifer periphery be laid with loam, close to aquifer outer ring be laid with thickness of soil with
Middle sand bed is contour, and former ground level is gradually decrease to around then as the increase to aquifer outer ring distance, is formed from enclosing
The low slope of the high surrounding in centre of wall to original place table, the length of grade 1-1.2m around big tree, the length of grade 0.8-1m around little tree；
3) soil improvement between trees：After step 2) moulding is completed, the former surface soil table around trees between slope
Face spreads the turfy soil that the fine sand that a layer thickness is 1-3cm and thickness are 1-2cm, then again by under fine sand and turfy soil and surface layer
The soil of 7-10cm mixes；
4) variety selection：Mock-strawberry potentilla chinensis is selected on the slope of trees periphery, red fescue is selected between slope with crouching
Stem red-spotted stonecrop mixed seeding；
5) trees periphery slope land is by planting and establishing method：Northern area early April, in plant mock-strawberry potentilla chinensis, strain on slope
Line-spacing is 20 × 25cm, and husky 1cm, watering slow seedling 5-7 days are covered after plant；
6) between slope by planting：In northern area late April to May, mixed seeding red fescue is with crouching between slope
Stem red-spotted stonecrop；Red fescue application rate 20-25g/m2；Sleeping stem red-spotted stonecrop broadcasts 180-200 sections/m of stem2；Use the roller town of weight 50-60kg
Pressure one time；Earthing, thickness 0.6-0.8cm are carried out with the sieve of aperture 5-6mm, the cover soil material of selection is pressed for sandy soil with turfy soil
According to 2:The mixed soil of 1 ratio.
The beneficial effects of the invention are as follows：
1st, green coverage is expanded：By under the exposed afforestation forest of original almost all, planting jade hairpin, mock-strawberry potentilla chinensis,
With crouching stem red-spotted stonecrop and red fescue quilt, significantly increases green coverage.
2nd, air quality is improved：Expansion city's green areas, which is equal to, adds suction of the green plants to pernicious gas in air
Receipts amount, while covering of the ground cover plant to earth's surface can prevent the airborne dust that exposed earth's surface produces, therefore improve air quality.
3rd, the covering of ground cover plant is realized under trees：Under normal conditions, around trunk diameter 1-2m circle scope
Interior no plant can grow, and root system is more mainly around trunk, soil hardening, dry branches and fallen leaves covering, shading relatively force it
The leaf of coniferous tree is few containing ash content and the material such as how resinous and tannin causes the soil under coniferous forest often to be made in reasons such as acidity
Into.Soil improvement and the laying of gravel layer, not only improved soil permeability under trees but also effectively control tree root to
Upper layer of soil stretches；The measure for build enclosure wall, banketing provides suitable soil for the growth of ground cover plant；Annual dry branches and fallen leaves
Remove prevent influence ground cover plant sprout and the change of soil ph；The application of these technical measures is shade plant jade hairpin
Growth create condition.It is achieved thereby that under trees ground cover plant covering.
4th, ground mulching effect is good and lasting：Red fescue is extremely low temperature resistant, non-refractory, is adapted to grow in northern area；It is sleeping
Stem red-spotted stonecrop sprawl growth, covering earth's surface ability are strong.And the two equal shade tolerant, crouching stem red-spotted stonecrop can be in the hayashishita of shade density more than 70%
Well-grown, red fescue shade tolerance are stronger than most of cold-season turfgrass, can normally be given birth in the hayashishita of shade density 50-70%
It is long, northern area can planting into solely by.The two is mixed into building up hayashishita quilt, the work of mutual supplement with each other's advantages can be played
With.When shade density is suitable, the two uniform mixed distribution, when tree crown becomes larger in woods, sleeping stem red-spotted stonecrop is formed when shade density is larger is
Supplemented by main red fescue mixedly by and the less place of border shade density forms red fescue as the mixing supplemented by master bedroom stem red-spotted stonecrop
Ground quilt.Therefore no matter how afforestation forest shade density changes, and can persistently cover ground.Mock-strawberry potentilla chinensis can be in shade density 75%
More than hayashishita well-grown, when shade density is larger, its ability of occupying is better than red fescue and sleeping stem red-spotted stonecrop, therefore it is in the later stage
In long-time growth course by compete naturally gradually formed with red fescue and sleeping stem red-spotted stonecrop nature it is complementary mixedly by.
5th, it is adapted to low level management：Mock-strawberry potentilla chinensis, sleeping stem red-spotted stonecrop and red fescue vitality are extremely strong, cold-resistant, drought-enduring, impoverishment tolerant
Promote its power of regeneration strong etc. excellent characteristic, it is only necessary to be managed in planting outside, afterwards with little need for management initial stage.Tree
Also with little need for management after the planting of jade hairpin survives under wood.
6th, tree root eupnea and watering be ensure that：The aquifer set outside enclosure wall can play under normal circumstances
The effect that tree root is breathed freely, can be directly toward the aquifer watering drought resisting around trees when extreme drought weather occurs.
7th, the growth of tree diameters is not influenced：Carried out setting lower processing according to tree diameters magnitude classification, be straight according to little tree
The principle that Diameter growth is very fast, big tree growth in thickness is slower, had both met plant under the big tree that tree root is thick, surface soil is hard
The level ground bed soil layer thickness of jade hairpin, in turn ensure that the growth for the little tree diameter that tree root is smaller, earth's surface is comparatively soft.
8th, the exposed ground mulching under being preced with for sparse isolated tree ebon provides a kind of method：Sparse single plant arbor is aided with shrub
It is mostly exposed under tree crown although preferable with herbal three layers of afforestation mode afforestation effect, under trees of the present invention
Greening method is fully able to solve this problem.
9th, the generation of winter afforestation forest surface dust is avoided：Sleeping stem red-spotted stonecrop and red fescue formed mixedly by and mock-strawberry entrust
Although mound dish is solely withered in northern area winter aerial part, but still can be good at cover earth's surface prevent that soil is naked
Dew；Jade hairpin overground part can cause soil bareness after withering, and one layer of gravel being laid with by earth's surface then covers soil.Therefore this hair
The bright generation that can avoid winter afforestation forest surface dust.
10th, a new way has been started for northern area Garden Engineering production practices：It is exposed under project afforestation forest of the present invention
The planting success of earth's surface ground cover plant, for the stronger exposed earth's surface ground cover plant covering of northern area shading and suitable low level management
One new technology is provided.
Embodiment
A kind of method suitable for the greening of northern area urban afforestation hayashishita of embodiment 1
Method includes the following steps
(1) greening method under trees
1. classification：Two classes are divided into according to tree breast-height diameter size：Diameter of a cross-section of a tree trunk 1.3 meters above the ground ＜ 20cm are little tree, and the diameter of a cross-section of a tree trunk 1.3 meters above the ground >=20cm is big tree.
2. the lower soil improvement of tree：Set using base portion trunk as the center of circle greatly, the 0.6-0.8m radius that stretches out is as big tree
Soil improvement area, prior to being sanded in great Shu soil improvements area, thickness 4-6cm, then manually with pick by husky with 9- under surface layer
The soil of 11cm mixes；Little tree is using base portion trunk as the center of circle, and the 1.0-1.2m radius that stretches out is as little tree soil improvement
Area, prior to being sanded in little tree soil improvement area, thickness 1-3cm, then manually with pick by the husky soil with 3-5cm under surface layer
Mix；
3. graveling：One floor gravel layer of soil upper berth after being improved in great Shu soil improvements area, thickness 4-6cm, gravel
A diameter of 1-1.2cm, paves compacting；Retain the gap that a circle radius is 15-30cm around trunk in little tree soil improvement area,
Loam, one layer of the improvement soil upper berth gravel of interstitial peripheral, thickness 6-8cm are filled out in gap；Gravel diameter is 2-4cm；Spread gravel
The purpose of stone is that the root system for preventing trees is stretched over above, while is also to reduce follow-up paving soil to tree root soil aeration
Influence.It is to influence little tree trunk in future in order to prevent to retain a circle gap around little tree to insert loam without spreading gravel completely
The fast-growth of diameter.
4. build enclosure wall：Built along the outer bounded in great Shu soil improvements area or little tree soil improvement area around trunk with hollow brick
One corral wall, enclosure wall thickness 5cm, the enclosure wall set greatly are highly 40-50cm, and the enclosure wall of little tree is highly 30-40cm, and use is hollow
The purpose of brick is in favor of the aeration and water penetration of guarantee soil.
5. banket：Into enclosure wall, soil improvement area bankets, and inserts the fine sand that diameter is less than 0.2mm, thickness 4-5cm first
Compacting, is then filled with turfy soil, thickness 4-5cm, finally inserts planting soil (containing well-rotted farmyard manure), planting soil is highly less than
Along 2-3cm on enclosure wall；The purpose of paving fine sand is the infiltration gravel layer for preventing upper layer of soil excessive, and the purpose for adding turfy soil is to protect
Moisture in the soil, since turfy soil water-absorbing-retaining ability is strong, reduces the speed that moisture penetrates into gravel layer.
6. watering, sedimentation, mend soil：The soil inserted into enclosure wall pour it is permeable once, after its sedimentation after mend soil, then pour again
Soil is mended in water sedimentation, untill no longer sinking.
7. variety selection in enclosure wall：Under the afforestation forest tree of 70%≤canopy density≤95%, the plant of selection is flower of Sword-like Plantainlily
With golden-rimmed jade hairpin, the two mixed planting ratio is 3:2；Under 50% ＜ canopy density ＜, 70% afforestation forest trees, the plant of selection is northeast
Jade hairpin and white jade hairpin, the two mixed planting ratio are 1:2；
8. enclosure wall implants planting：In northern area April, 2-3 bud of jade hairpin is divided into one section, seeding row spacing 25-
30cm, planting is carried out according to conventional planting technique；
9. management：Require to carry out according to conventional jade hairpin administrative skill, jade hairpin can be with low level management, then in November after surviving
After the first tenday period of a month aerial part is withered, cut overground part dead leaf and remove the dry branches and fallen leaves of trees, layer overlay gravel, thickness 2-
3cm, gravel diameter 0.5-0.6cm, gravel layer do not influence the growth of being unearthed of sprouting in jade hairpin spring next year, no longer need to take later
This measure；At the beginning of annual 2 the end of month to 3 months, the trees dry branches and fallen leaves and jade hairpin dead leaf for falling on soil surface are removed once, prevented not
The dry branches and fallen leaves for rotting to decompose influences jade hairpin spring and sprouts growth.
(2) greening method between trees
1. aquifer is built：Enclosure wall periphery is laid with a circle gravel layer, and gravel diameter 3-4cm, gravel layer width is 8-
10cm, highly less than along 5-7cm, one layer of rough sand, thickness 2-4cm, rough sand grains of sand diameter 0.1- are spread above gravel layer on enclosure wall
0.3cm, then repave in one layer it is husky, in rustle a diameter of 0.25-0.5mm of grain, thickness to on enclosure wall along concordant.Play tree well
Effect, be conducive to arid season makes trees drought resisting to gravel layer watering, while non-arid season is conducive to tree root breathing；
2. enclosure wall periphery moulding：Aquifer periphery be laid with loam, close to aquifer outer ring be laid with thickness of soil with
Middle sand bed is contour, and former ground level is gradually decrease to around then as the increase to aquifer outer ring distance, is formed from enclosing
The low slope of the high surrounding in centre of wall to original place table, the length of grade 1-1.2m around big tree, the length of grade 0.8-1m around little tree；
3. soil improvement between trees：After step 2) moulding is completed, the former surface soil between slope around trees
Surface spreads the turfy soil that the fine sand that a layer thickness is 1-3cm and thickness are 1-2cm, then again by fine sand and turfy soil and surface layer
The soil of lower 7-10cm mixes；
4. variety selection：Mock-strawberry potentilla chinensis is selected on the slope of trees periphery, red fescue is selected between slope with crouching
Stem red-spotted stonecrop mixed seeding；
5. trees periphery slope land is by planting and establishing method：Northern area early April, in transplanting mock-strawberry potentilla chinensis on slope, adopts
With the mock-strawberry potentilla chinensis method that routinely whole strain is transplanted, seeding row spacing 20-25cm, covers husky 1cm after plant, slow seedling of watering 5-7 days, into
Substantially not having to management after work can grow naturally.
6. between slope by planting：In northern area late April to May, mixed seeding red fescue is with crouching between slope
Stem red-spotted stonecrop；Red fescue application rate 20-25g/m2；Sleeping stem red-spotted stonecrop broadcasts 180-200 sections/m of stem2；On soil first after hayashishita improvement
With planting with sowing machine red fescue；Then sleeping stem red-spotted stonecrop seedling plant is cut into the segment of 5-7cm, also uniform broadcasting is after improvement
On soil；Suppressed one time using the roller of weight 50-60kg；Earthing is carried out with the sieve of aperture 5-6mm, thickness 0.6-0.8cm,
The cover soil material of selection is for sandy soil with turfy soil according to 2:The mixed soil of 1 ratio.
7. seedling management：A water is poured daily, keeps upper soll layer moistening, Cheng Ping is transferred to Routine Management after 7-10 days；
8. Routine Management：The two ground cover plant being mixed to form is suitable for low level management, therefore only needs according to conventional pipe
Reason measure carries out maintenance management.By trimming the height of control red fescue, each cutting range is 5-6cm, is conducive to sleeping stem scape
Its inter-species fair competition with red fescue, can form mixed uniformly ground cover plant under conditions of canopy density are suitable.Annual 3
In the first tenday period of a month moon, to falling on removed once by the trees dry branches and fallen leaves broom on surface, prevent the dry branches and fallen leaves shadow for not rotting to decompose
Ringing its spring sprouts growth.
Application example
It is about 5000 square metres and 8000 square metres green to 2 pieces of areas in Liaoning University campus using the method for example 1
Change the planting engineering that the exposed earth's surface of hayashishita implements ground cover plant, the moulder before implementing planting in September, 2012-October
Journey, planting engineering is implemented in March, 2013-May, and the earth's surface ground cover plant coverage of August part investigation then averagely reaches 95%,
Removing dry branches and fallen leaves is only carried out 2 times within 2014 and 2015 and has trimmed 4 times, do not taken other management measures, be substantially
Low level management, ground cover plant grow fine, and find in 3 years with the change of shade density and other growing environments, this is several
Nature competition, naturally complementary phenomenon is presented to occupying for forest floor in kind ground cover plant.These types of ground cover plant is demonstrated to exist
Hayashishita can have complementary advantages to form good ground quilt.
Claims (2)
- A kind of 1. method suitable for the greening of northern area urban afforestation hayashishita, it is characterised in that method is as follows：（One）Greening method under trees1）Classification：Two classes are divided into according to tree breast-height diameter size：Diameter of a cross-section of a tree trunk 1.3 meters above the ground ＜ 20cm are little tree, and the diameter of a cross-section of a tree trunk 1.3 meters above the ground >=20cm is big tree；2）The lower soil improvement of tree：Set using base portion trunk as the center of circle greatly, the 0.6-0.8m radius that stretches out is as big tree soil Area is improved, prior to being sanded in great Shu soil improvements area, sands thickness 4-6cm, then by the husky soil with 9-11cm under surface layer Mix；Little tree is using base portion trunk as the center of circle, and the 1.0-1.2m radius that stretches out is as little tree soil improvement area, prior to little tree Soil improvement sands in area, sands thickness 1-3cm, is then mixed husky with the soil of 3-5cm under surface layer；3）Graveling：The gravel layer that soil upper berth a layer thickness after being improved in great Shu soil improvements area is 4-6cm, gravel diameter For 1-1.2cm, compacting is paved；Retain the gap that a circle radius is 15-30cm, gap around trunk in little tree soil improvement area Inside fill out loam, the gravel layer improved soil upper berth a layer thickness and be 6-8cm of interstitial peripheral, gravel diameter 2-4cm；4）Build enclosure wall：A corral wall is built along the outer border in great Shu soil improvements area or little tree soil improvement area hollow brick, greatly The enclosure wall of tree is highly 40-50cm, and the enclosure wall of little tree is highly 30-40cm；5）Banket：Into enclosure wall, soil improvement area bankets, and inserts the fine sand that diameter is less than 0.2mm, thickness 4-5cm, pressure first It is real, turfy soil is then filled with, thickness 4-5cm finally inserts planting soil, and planting soil is highly less than on enclosure wall along 2-3cm；6）Watering, sedimentation, mend soil：The soil inserted into enclosure wall pour it is permeable once, after its sedimentation after mend fill out planting soil, Ran Houzai Planting soil is mended in watering sedimentation, until no longer sinking；7）Variety selection in enclosure wall：Under the afforestation forest tree of 70%≤canopy density≤95%, the plant of selection is flower of Sword-like Plantainlily and Phnom Penh Jade hairpin, the two mixed planting ratio are 3:2；Under 50% ＜ canopy density ＜, 70% afforestation forest trees, the plant of selection is flower of Sword-like Plantainlily and white Jade hairpin, the two mixed planting ratio are 1:2；8）Enclosure wall implants planting：In northern area April, 2-3 bud of jade hairpin is divided into one section, seeding row spacing 25-30cm, into Row planting；9）Management：Jade hairpin survives rear low level management, after aerial part is withered in early November then, cuts dead leaf and removes trees Dry branches and fallen leaves, layer overlay gravel, thickness 2-3cm, gravel diameter 0.5-0.6cm, no longer needs graveling, every year later Need to remove 1-2 dry branches and fallen leaves.
- 2. a kind of method suitable for the greening of northern area urban afforestation hayashishita according to claim 1, it is characterised in that also Include the following steps：（Two）Greening method between trees1）Aquifer is built：Enclosure wall periphery is laid with a circle gravel layer, width 8-10cm, highly less than on enclosure wall along 5-7cm, One layer of rough sand is spread above gravel layer, thickness 2-4cm, rough sand grains of sand diameter 0.1-0.3cm, then repave husky in one layer, middle sand The a diameter of 0.25-0.5mm of the grains of sand, thickness to on enclosure wall along concordant；2）The moulding of enclosure wall periphery：Aquifer periphery is laid with loam, close to the loam thickness that aquifer outer ring is laid with and middle sand Layer it is contour, be gradually decrease to former ground level around then as the increase to aquifer outer ring distance, formed from enclosure wall to The low slope of the high surrounding in centre of original place table, the length of grade 1-1.2m around big tree, the length of grade 0.8-1m around little tree；3）Soil improvement between trees：Complete step 2）After moulding, the original place table soil surface between slope around trees The fine sand that a layer thickness is 1-3cm and the turfy soil that thickness is 1-2cm are spread, then again by fine sand and turfy soil and 7- under surface layer The soil of 10cm mixes；4）Variety selection：Mock-strawberry potentilla chinensis is selected on the slope of trees periphery, red fescue and sleeping stem scape are selected between slope Its mixed seeding；5）Trees periphery slope land is by planting and establishing method：Northern area early April, in plant mock-strawberry potentilla chinensis, seeding row spacing on slope For 20-25cm, husky 1cm, watering slow seedling 5-7 days are covered after plant；6）Between slope by planting：In northern area late April to May, mixed seeding red fescue and sleeping stem scape between slope My god；Red fescue application rate 20-25g/m2；Sleeping stem red-spotted stonecrop broadcasts 180-200 sections/m of stem2；One is suppressed using the roller of weight 50-60kg Time；Carry out earthing with the sieve of aperture 5-6mm, thickness 0.6-0.8cm, the cover soil material of selection for sandy soil and turfy soil according to 2:The mixed soil of 1 ratio.
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| CN101978813A (en) * | 2010-09-09 | 2011-02-23 | 辽宁省农业科学院耕作栽培研究所 | Method for planting green lawn by using stolons of Potentilla centigrana Maxim |
| CN102732255A (en) * | 2012-06-25 | 2012-10-17 | 广州中茂园林建设工程有限公司 | Soil improved composition and method for improving soil |
| CN102792799A (en) * | 2012-08-13 | 2012-11-28 | 陈仁河 | Dense ditch management method |
| CN103098641A (en) * | 2013-03-01 | 2013-05-15 | 江苏海景园林发展有限公司 | Planting method of saline-alkali land greening |
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| JP5100811B2 (en) * | 2010-10-15 | 2012-12-19 | 東急建設株式会社 | Greening member and greening method on the ground surface |
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| CN101978813A (en) * | 2010-09-09 | 2011-02-23 | 辽宁省农业科学院耕作栽培研究所 | Method for planting green lawn by using stolons of Potentilla centigrana Maxim |
| CN102732255A (en) * | 2012-06-25 | 2012-10-17 | 广州中茂园林建设工程有限公司 | Soil improved composition and method for improving soil |
| CN102792799A (en) * | 2012-08-13 | 2012-11-28 | 陈仁河 | Dense ditch management method |
| CN103098641A (en) * | 2013-03-01 | 2013-05-15 | 江苏海景园林发展有限公司 | Planting method of saline-alkali land greening |
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