CN106613837A - City riverbank afforestation method by using water-retaining ecological bags - Google Patents
City riverbank afforestation method by using water-retaining ecological bags Download PDFInfo
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- CN106613837A CN106613837A CN201611037847.2A CN201611037847A CN106613837A CN 106613837 A CN106613837 A CN 106613837A CN 201611037847 A CN201611037847 A CN 201611037847A CN 106613837 A CN106613837 A CN 106613837A
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- Prior art keywords
- water
- ecology bag
- bag
- parts
- greening
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- A01G31/00—Soilless cultivation, e.g. hydroponics
-
- 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
- A01G24/00—Growth substrates; Culture media; Apparatus or methods therefor
-
- 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
- A01G31/00—Soilless cultivation, e.g. hydroponics
- A01G31/02—Special apparatus therefor
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/122—Flexible prefabricated covering elements, e.g. mats, strips
- E02B3/125—Flexible prefabricated covering elements, e.g. mats, strips mainly consisting of vegetable material, e.g. wood, reeds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Environmental & Geological Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cultivation Receptacles Or Flower-Pots, Or Pots For Seedlings (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention provides a city riverbank afforestation method by using water-retaining ecological bags. The method comprises the steps of material preparation, site preparation, packing of bags, installation of steel wire mesh, hanging of the ecological bags, installation of a drip irrigation system, afforestation construction, watering of the drip irrigation system, and the like. The method solves the water-retaining and fertilizer-retaining problems of the ecological bags, is suitable for the plant growth, at the same time, saves the transportation cost and labor cost in the construction process.
Description
Technical field
The invention belongs to afforestation field, specifically a kind of utilization water-retaining property ecology bag carries out the side of urban riverbank greening
Method.
Background technology
Ecology bag shore protection often has application in dredging waterway, and the slope protection system is that plant growth medium is fixed on into bag
It is interior, buckle down through three-dimensional water discharge coupling between bag and bag, the tight lock construction of friction in stable triangle is formed, root system of plant is passed through
Bag free growth is entered in engineering foundation soil, and the root system " anchoring " of generation acts on and riverbank is more consolidated and with anti-impact
Brush ability, the bank protection method has effect unique to the reparation of Channel slope and the beautification of environment.
In construction, ecology bag greening mode can be divided into mixed seeding, sow grass seeds by duster, bunch planting, intercuts and pressure is broadcast, no matter using which kind of side
Formula, all needs to be loaded toward in bag planting soil as plant growth medium, and ecology bag also need to be discharged according to fixed triangle pattern, this
A little operations waste time and energy.In addition city river has the characteristics of erosion ability is strong, water level float is big, and the soil body is easily soaked by current in bag
Erosion, high temperature season, water level top ecology bag implants growing way is affected by water conservation problem.
The content of the invention
The domatic particularity of shore protection hard is grouted based on city, conventional ecology bag is afforested when in use, can run into domatic
Suddenly, it is impossible to discharge；Matrix filling is slow, affects efficiency of construction；Matrix not water conservation, plant easily withers；Nutrient supply is poor, plant growing way
Slowly, in order to solve above-mentioned technical problem, the invention provides a kind of utilization water-retaining property ecology bag carries out the side of urban riverbank greening
Method, solves the problems, such as water conservation, the fertilizer conservation of ecology bag, is suitable to plant growth, while saving the cost of transportation in work progress, people
Work cost.
The object of the present invention is achieved like this：A kind of method that utilization water-retaining property ecology bag carries out urban riverbank greening,
Comprise the following steps：
1. material prepares
（1）Ecology bag：Main material is polyester fiber or polypropylene fibre, is made using nonwoven acupuncture technique is sintered.It
The effective aperture of plant growth, permeable impermeable matrix are met, with uvioresistant, antiacid alkali salt, antimicrobial erosion, antifreeze
Swollen, nontoxic, ageing-resistant the features such as.Bag effective aperture is 0.2-0.5mm.4 holes are left at 4 angles of bag, facilitate plastic clip band
Pass through.
（2）Growth substrate：The imitative native sponge grown using suitable for plant as growth substrate, feature be light and handy, health,
Environmental protection, matrix particle diameter is 5-8mm.
Formula is as follows：
1）Bamboo powder compost（Crush after fermentation to form, length≤2cm, the mesh of fineness degree 8-12, unit weight ＜ 0.25g/cm3, venting quality
＞ 40%, pH6.5-7)
2）Water pH6.5-7.5
3）Cornstarch
Meet the one-level starch standard of production high-strength structureal adhesives
Table 1：Cornstarch standard
| Inspection item | Standard value |
| Moisture（%） | ≤14 |
| Protein（%） | ≤0.5 |
| Ash content（%） | ≤0.05 |
| Acidity（0.1 molar sodium hydroxide is consumed per 100 grams of dried starch） | ≤15 |
| Fineness（By 100 from sieve）（%） | ≥99 |
4）NaOH：Technical pure
5）Borax：Technical pure
6）Polyethylene glycol
7）Glycerine
8）PPG
9）Toluene di-isocyanate(TDI)
Preparation flow：The stirring of the weight portion water of 100 weight portion Dehydrated Corn starch 300 is mixed to form mixed liquor 1, and temperature control exists
Between 60-65 DEG C；5 parts of NaOH are added to carry out gel in mixed liquor 1, at 70 DEG C, the time is 30min to temperature control, shape
Into mixed liquor 2；1000-1500 weight portion water, 300 parts of bamboo powder compost, 1.5-2 part boraxs, stirring mixing are added in mixed liquor 2
Mixture 3 is formed, temperature control is between 60-65 DEG C；Polyethylene glycol 50-100 parts, 50 parts of glycerine are added in mixed liquor 3, is gathered
Under ethoxylated polyhydric alcohol 50-100 parts, toluene di-isocyanate(TDI) 300-500 part room temperatures fully after reaction, solidification, particle diameter is smashed into for 5-
The particle of 8mm.
（3）Vegetable material：From falling zone fit raw Native species water pepper, Bermuda grass, Paspalum distichum, the chrysanthemum fire hose it is any
One or more combination, these plants were both water-fast wet and drought-resistant, and do not resulted in species invasion.
（4）Steel wire mesh frame
Grid mesh 200mm, diameter 2mm, rope diameter 10mm of steel rope net.
2. site operation
（1）Farm Planning：Clean out job site, it is impossible to the debris such as rubbish, tree root occur.
（2）Dress envelope：Job site filling bags, it is ensured that imitative soil sponge fills up whole ecology bag.Nylon cable tie is used again
Envelope bag mouth.
（3）Steel wire mesh frame is installed：After positioning drilling, anchor pole is installed and vertically and horizontally supporting rope is laid, supporting rope two ends are adopted
Ring set is exposed with rope card with anchor pole to be fixedly connected, grid and steel rope net are subsequently laid from the top down, by lock between steel rope net
Button is fixedly connected.
（4）Hang ecology bag：It is lateral opening through ecology bag corner by plastic clip band, by bag colligation in steel wire mesh frame
On.Because steel wire mesh frame mesh is close, ecology bag can be arbitrarily attached on steel wire.
（5）Drip irrigation system is installed：By depending on steel wire, water pipe for drip irrigation is installed on ecology bag top, matrix has good
Water retention property, nature in the case of, can within 1 week keep moisture state, drip irrigation system only need to keep the skin wet in good time after water suction.Together
When can by drip irrigation system give plant add nutrient, can more promote plant growth.
（6）Greening construction：The conventional greening method of ecology bag sows grass seeds by duster, press and broadcast, bunch planting, intercut, and needs are according to plant material
Material is selected.
1）Water pepper, the chrysanthemum fire hose：Using intercutting, fitted vessel seedling plant is excavated with instrument on the ecology bag surface for hanging
Hole, then goes bag to be put into hole container seedling, and water pepper height of seedling 4-5cm, each ecology bag opens 4 holes, per 1 plant of hole, conserves to pour
Based on water droplet is filled.
2）Bermuda grass, Paspalum distichum：After levelling of the land is complete, need to be mixed and stirred vegetable seeds and growth substrate, so
Afterwards mixture is packed into ecology bag, the installation of system is carried out afterwards.Every cubic metre of matrix adds grass-seed 50g.
（7）Drip irrigation system waters：
Water timely, after ecology bag is installed, drip irrigation system is opened as early as possible, after the completion of Bermuda grass, Paspalum distichum greening, need
Use non-textile mulch ecology bag, germination and Seedling Stage maintenance should not be less than 45d.
The present invention's has the advantage that：Material is light, saves cost of transportation；Growth substrate convenient filling, save manually into
This；Ecology bag is changed easy to maintenance；Growth substrate is pollution-free, ecological, environmental protective；Contrast planting soil, imitates soil sponge growth substrate water conservation
Ability is strong, is suitable to plant growth；Ecology bag is hung using plastic clip band, it is time saving and energy saving without discharging according to triangle model,
It is easy to nature to arrange ecology bag figure of different shapes, makes shore protection become the publicity window of urban culture.
Description of the drawings
Fig. 1 is the ecology bag schematic diagram of the present invention；
Fig. 2 is the steel wire mesh frame schematic diagram of the present invention；
Fig. 3 is the ecology bag and steel wire mesh frame connection diagram of the present invention；
In figure, 1-ecology bag；2-reserved lateral opening；3-kind of plant hole；4-lock；5-steel rope net；6-grid；7-plastics
Cassette tape.
Specific embodiment
Embodiment 1
Growth substrate produced according to the present invention：The stirring of the weight portion water of 100 weight portion Dehydrated Corn starch 300 is mixed to form mixed liquor
1, temperature control is between 60-65 DEG C；To in mixed liquor 1 add 5 parts of NaOH carry out gel, temperature control at 70 DEG C, when
Between be 30min, formed mixed liquor 2；1000 weight portion water, 300 parts of bamboo powder compost, 2 parts of boraxs are added in mixed liquor 2, is stirred
Mixture 3 is mixed to form, temperature control is between 60-65 DEG C；50 parts of polyethylene glycol, 50 parts of glycerine are added in mixed liquor 3, is gathered
Under 50 parts of ethoxylated polyhydric alcohol, 300 parts of room temperatures of toluene di-isocyanate(TDI) fully reaction, solidification after, smash into particle diameter be 5mm particle.
Contrasting common planting soil carries out water-retaining property test, and the time is April.Planting soil formula is sand：Clay=8:2, while
Addition Nutrition Soil, addition is according to 4-5 kilogram/cubic metre.Imitative soil sponge is packed into respectively ecology bag with planting soil, is put in cool place
Place's natural air drying, detects initial saturation moisture content, 24 hours water content, 48 hours water content, 72 hours water content.The results are shown in Table
2。
Table 2：Contrast common planting soil water-retaining property test result table
| Group | Initial saturation moisture content % | 24 hours water content % | 48 hours water content % | 72 hours water content % |
| Plantation local soil type | 29.2 | 15.4 | 6.7 | 2.8 |
| Imitative soil sponge group | 42.6 | 34.7 | 30.3 | 23.4 |
Embodiment 2
According to the content of the invention, carry out in Anji County, Zhejiang Province Divine Peak Temple, the engineering time is April.Ecology bag bag effective aperture is
0.2mm.Growth substrate is respectively adopted imitative soil sponge and tests as a comparison with planting soil, and imitative soil sponge is exactly the product of embodiment 1,
Planting soil formula is sand：Clay=8:2, while adding Nutrition Soil, addition is according to 4-5 kilogram/cubic metre.Plant adopts dog
Root of the tooth, after levelling of the land is complete, vegetable seeds and growth substrate is mixed and stirred, and every cubic metre of matrix adds grass-seed 50g., so
Afterwards mixture is packed into ecology bag, after bag filling, long 800mm, wide 400mm, high 150mm.Subsequently according to the content of the invention, enter
Row steel wire mesh frame is installed, and ecology bag hangs.Wherein imitate soil sponge group and drip irrigation system is installed, plantation local soil type is not required to install drip irrigation system
System.Germination and Seedling Stage maintenance should not be less than 45d.The results are shown in Table 3.
Table 3：Growing state contrast after the two groups of 45d maintenances of imitative soil sponge and planting soil（P<0.05）
| Group | Germination percentage % | Cover degree % |
| Plantation local soil type | 71.23 | 78 |
| Imitative soil sponge group | 88.14 | 86 |
Presently preferred embodiments of the present invention is the foregoing is only, it is all in the spirit and principles in the present invention not to limit the present invention
Within any modification, equivalent and the improvement made etc., be all contained within protection scope of the present invention.
Claims (8)
1. a kind of method that utilization water-retaining property ecology bag carries out urban riverbank greening, it is characterised in that comprise the steps：
Material prepares：
Ecology bag：Main material is polyester fiber or polypropylene fibre, is made using nonwoven acupuncture technique is sintered, bag 4
4 holes are left at individual angle, facilitate plastic clip band to pass through；
Growth substrate：Using the imitative native sponge of suitable for plant growth as growth substrate；
Vegetable material：From falling zone fit raw Native species water pepper, Bermuda grass, Paspalum distichum, the chrysanthemum fire hose any or
Multiple combination；
Steel wire mesh frame；
2）Site operation：
a）Farm Planning：Clean out job site, it is impossible to the debris such as rubbish, tree root occur；
b）Dress envelope：Job site filling bags, it is ensured that imitative soil sponge fills up whole ecology bag, then seals bag with nylon cable tie
Mouthful；
c）Steel wire mesh frame is installed：After positioning drilling, anchor pole is installed and vertically and horizontally supporting rope is laid, supporting rope two ends are using rope card
Ring set is exposed with anchor pole to be fixedly connected, grid and steel rope net are subsequently laid from the top down, by latching fixation between steel rope net
Connection；
d）Hang ecology bag：It is lateral opening through ecology bag corner by plastic clip band, by bag colligation on steel wire mesh frame；
e）Drip irrigation system is installed：By depending on steel wire, water pipe for drip irrigation is installed on ecology bag top；
f）Greening construction：Select to sow grass seeds by duster according to vegetable material, press and broadcast, bunch planting, the greening method such as intercut；
g）Drip irrigation system waters：Water timely, after ecology bag is installed, drip irrigation system, Bermuda grass, double fringe sparrows are opened as early as possible
After the completion of barnyard grass greening, non-textile mulch ecology bag, germination and Seedling Stage maintenance need to be used should not to be less than 45d.
2. the method that a kind of utilization water-retaining property ecology bag as claimed in claim 1 carries out urban riverbank greening, it is characterised in that
The bag effective aperture of the ecology bag is 0.2-0.5mm.
3. the method that a kind of utilization water-retaining property ecology bag as claimed in claim 1 carries out urban riverbank greening, it is characterised in that
The particle diameter of the growth substrate is 5-8mm.
4. the method that a kind of utilization water-retaining property ecology bag as claimed in claim 1 carries out urban riverbank greening, it is characterised in that
The formula of the growth substrate is as follows：300 parts of bamboo powder compost；1300-1800 parts of water；100 parts of cornstarch；NaOH 5
Part；1.5-2 parts of borax；50-100 parts of polyethylene glycol；50 parts of glycerine；50-100 parts of PPG；Toluene di-isocyanate(TDI)
300-500 parts.
5. the method that a kind of utilization water-retaining property ecology bag as claimed in claim 4 carries out urban riverbank greening, it is characterised in that
The bamboo powder compost is formed to crush after fermentation, length≤2cm, the mesh of fineness degree 8-12, unit weight ＜ 0.25g/cm3, venting quality ＞
40%, pH6.5-7；The pH of the water is 6.5-7.5；The cornstarch meets the one-level starch mark of production high-strength structureal adhesives
It is accurate.
6. the method that a kind of utilization water-retaining property ecology bag as claimed in claim 4 carries out urban riverbank greening, it is characterised in that
The preparation method of the growth substrate is as follows：The stirring of the weight portion water of 100 weight portion Dehydrated Corn starch 300 is mixed to form into mixing
Liquid 1, temperature control is between 60-65 DEG C；To in mixed liquor 1 add 5 parts of NaOH carry out gel, temperature control at 70 DEG C,
Time is 30min, forms mixed liquor 2；1000-1500 weight portion water, 300 parts of bamboo powder compost, 1.5-2 are added in mixed liquor 2
Part borax, stirring is mixed to form mixture 3, and temperature control is between 60-65 DEG C；Polyethylene glycol 50- is added in mixed liquor 3
100 parts, 50 parts of glycerine, PPG 50-100 parts, fully reaction, solidification under toluene di-isocyanate(TDI) 300-500 part room temperatures
Afterwards, the particle that particle diameter is 5-8mm is smashed into.
7. the method that a kind of utilization water-retaining property ecology bag as claimed in claim 1 carries out urban riverbank greening, it is characterised in that
The grid mesh of the steel wire mesh frame be 200mm, diameter 2mm, rope diameter 10mm of steel rope net.
8. the method that a kind of utilization water-retaining property ecology bag as claimed in claim 1 carries out urban riverbank greening, it is characterised in that
For water pepper and the chrysanthemum fire hose during greening construction：Using intercutting, fitted vessel seedling is excavated with instrument on the ecology bag surface for hanging
The hole of plant, then goes bag to be put into hole container seedling, and water pepper height of seedling 4-5cm, each ecology bag opens 4 holes, per 1 plant of hole, supports
Shield is based on drip irrigation of watering；For Bermuda grass, Paspalum distichum：After levelling of the land is complete, need vegetable seeds and growth substrate
Mixed and stirred, then mixture is packed into ecology bag, the installation of system is carried out afterwards, every cubic metre of matrix is added grass-seed
50g。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611037847.2A CN106613837A (en) | 2016-11-23 | 2016-11-23 | City riverbank afforestation method by using water-retaining ecological bags |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611037847.2A CN106613837A (en) | 2016-11-23 | 2016-11-23 | City riverbank afforestation method by using water-retaining ecological bags |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106613837A true CN106613837A (en) | 2017-05-10 |
Family
ID=58812644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611037847.2A Pending CN106613837A (en) | 2016-11-23 | 2016-11-23 | City riverbank afforestation method by using water-retaining ecological bags |
Country Status (1)
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968221A (en) * | 2017-05-14 | 2017-07-21 | 刘滨 | A kind of method of environmentally friendly beautification type river levee bank protection |
| CN107119700A (en) * | 2017-07-03 | 2017-09-01 | 四川农业大学 | A kind of slope reinforcement and ecological protection system |
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|---|---|---|---|---|
| JP2001311154A (en) * | 2000-04-28 | 2001-11-09 | Yasui Kk | Vegetation net and vegetation bag |
| CN102251527A (en) * | 2011-04-27 | 2011-11-23 | 杭州中艺园林工程有限公司 | Construction method of rock surface ecological greening |
| CN104314087A (en) * | 2014-11-05 | 2015-01-28 | 重庆建工市政交通工程有限责任公司 | Slope greening protective structure and construction method thereof |
| CN204860307U (en) * | 2015-07-16 | 2015-12-16 | 杭州市园林绿化股份有限公司 | Plant and give birth to bag suitable for shore protection afforestation |
| CN105482149A (en) * | 2015-12-10 | 2016-04-13 | 深圳友家乐活产品有限公司 | Biodegradation-controllable full-breathable planting sponge and preparation method thereof |
| CN105900808A (en) * | 2016-04-25 | 2016-08-31 | 北京克林纳奇新材料科技有限公司 | Environment-friendly light porous simulated soil cultivation medium body and preparation method thereof |
| CN205636764U (en) * | 2016-05-27 | 2016-10-12 | 中国电建集团铁路建设有限公司 | High cliff matter slope planting protective structure |
-
2016
- 2016-11-23 CN CN201611037847.2A patent/CN106613837A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001311154A (en) * | 2000-04-28 | 2001-11-09 | Yasui Kk | Vegetation net and vegetation bag |
| CN102251527A (en) * | 2011-04-27 | 2011-11-23 | 杭州中艺园林工程有限公司 | Construction method of rock surface ecological greening |
| CN104314087A (en) * | 2014-11-05 | 2015-01-28 | 重庆建工市政交通工程有限责任公司 | Slope greening protective structure and construction method thereof |
| CN204860307U (en) * | 2015-07-16 | 2015-12-16 | 杭州市园林绿化股份有限公司 | Plant and give birth to bag suitable for shore protection afforestation |
| CN105482149A (en) * | 2015-12-10 | 2016-04-13 | 深圳友家乐活产品有限公司 | Biodegradation-controllable full-breathable planting sponge and preparation method thereof |
| CN105900808A (en) * | 2016-04-25 | 2016-08-31 | 北京克林纳奇新材料科技有限公司 | Environment-friendly light porous simulated soil cultivation medium body and preparation method thereof |
| CN205636764U (en) * | 2016-05-27 | 2016-10-12 | 中国电建集团铁路建设有限公司 | High cliff matter slope planting protective structure |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968221A (en) * | 2017-05-14 | 2017-07-21 | 刘滨 | A kind of method of environmentally friendly beautification type river levee bank protection |
| CN107119700A (en) * | 2017-07-03 | 2017-09-01 | 四川农业大学 | A kind of slope reinforcement and ecological protection system |
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Application publication date: 20170510 |