CN105165325B - A kind of cohesive soil with low liquid protecting slope ecology method - Google Patents
A kind of cohesive soil with low liquid protecting slope ecology method Download PDFInfo
- Publication number
- CN105165325B CN105165325B CN201510510221.8A CN201510510221A CN105165325B CN 105165325 B CN105165325 B CN 105165325B CN 201510510221 A CN201510510221 A CN 201510510221A CN 105165325 B CN105165325 B CN 105165325B
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- Prior art keywords
- side slope
- low liquid
- cohesive soil
- hypothallus
- soil
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Classifications
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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
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a kind of cohesive soil with low liquid protecting slope ecology method, is related to cohesive soil with low liquid side slope protection technical field.This method includes finishing side slope, cover hypothallus, sow seed layer, cover non-woven fabrics, maintenance, remove several steps such as non-woven fabrics, caused cohesive soil with low liquid digging soil of building highway is included in hypothallus, make the stalk fibre of compost treatment in advance, indigenous plant seed, farm organic fertilizer, composite fertilizer, super absorbent resin, polyacrylamide, indigenous plant seed is included in seed layer, raw material sources are extensive, it is of low cost, method construction technology is simple, side slope protection effect is good, suitable in traffic, building, municipal administration, it is widely applied in the ecological protection for the cohesive soil with low liquid side slope that the engineerings such as water conservancy are formed.
Description
Technical field
The invention belongs to protecting slope ecology technical field, and in particular to one kind is directed to cohesive soil with low liquid slope ecological
Means of defence.
Background technology
In recent years, China Expressway is grown rapidly, but a large amount of build of highway also causes ecological environment
Huge pressure and destruction.The stability of side slope can not only be increased by building Ecological Slope, reduce soil erosion, control slope surface footpath
Stream, and can protect and recover side slope and surrounding ecological environment, therefore with good economic efficiency, social benefit and life
State benefit, is one of the main direction of development of side slope protection from now on.
At present, common protecting slope ecology method mainly have three-dimension vegetative net guard technology, alien earth sparging guard technology,
Thick photoresist guard technology, geotechnical grid ecological protection technology and mortar flag stone skeleton grass planting guard technology etc..It is but existing
There are following defect for technology:1. needing special construction equipment mostly, to sowing grass seeds by duster, base material has higher requirements, and technique is complex,
Construction cost is higher, inject capital into terms of the highway slope protection it is relatively fewer in the case of, be not easy to be widely popularized;2. plantation is planted
Thing is mostly the common draft of urban afforestation and shrub, and species is single, and diversity is low, is not easy to form Natural plant community, ecosystem
System is fragile;3. in semiarid cohesive soil with low liquid side slope area, due to soil depletion, the content of organic matter is low, poor water retention property, does
Drought is short of rain, and plant growth is restricted, and causes protection effect poor.
The content of the invention
Special hydroseeder is not required the object of the present invention is to provide a kind of, construction technology is simple, and cost is low, low-carbon, life
The new method of state.
In order to realize purpose of the present invention, following technical scheme is inventor provided.
A kind of cohesive soil with low liquid protecting slope ecology method, operating procedure include:
Step 1, repairs side slope, removes debris, rubble and floating root in side slope, compacting side slope face soil layer, puts down side slope face
It is whole;
Step 2, is soaked to side slope face water spray, is then uniformly laid with hypothallus, then the uniform fold on hypothallus
Include the seed layer of indigenous plant seed;
Step 3, to the side slope face for having covered seed layer on cover non-woven fabrics, then wet curing, treats indigenous plant
After germination and growth are stablized, non-woven fabrics is removed in time;
Wherein hypothallus described in step 2 include building highway caused by cohesive soil with low liquid digging soil, make compost in advance
Stalk fibre, farm organic fertilizer, composite fertilizer, super absorbent resin, the polyacrylamide of processing.
Further, usage ratio of each component in every square metre of side slope face is caused low to build highway in hypothallus
Liquid limit silty clay digging soil:Make the stalk fibre of compost treatment in advance:Farm organic fertilizer:Composite fertilizer:Super absorbent resin:Poly- third
Acrylamide=60kg:1500g:450g:30~50g:30g:10g.It is laid with after mixing, laying depth 8cm.
Further, side slope leveling described in step 1 is that side slope face camber average value is ± 5cm, and camber is most
Big value is no more than ± 8cm.
Further, cohesive soil with low liquid digging soil described in hypothallus is to be built in cohesive soil with low liquid side slope area
Caused by highway it is unnecessary or cannot be rolled as roadbed it is using, need the earthwork transported.
Further, the stalk fibre for making compost treatment described in hypothallus in advance is artificial or mechanical cutting or crushing
Agricultural crop straw, adds water and lime to be formed using common stack retting method retting before use.Agricultural crop straw preferably wheat, rice
Or at least one of maize straw.The length of agricultural crop straw is preferably 3 ~ 5cm.Preferably 10 days retting time.In hypothallus
It is middle add pretreatment stalk fibre can not only play the role of soil improvement, can also improve hypothallus shearing strength,
Reduce fracture width and reduce sediment production, the overall stability of hypothallus is obtained good holding.If crops straw
Stalk needs the time of 3-5 without any processing, in the soil complete decomposition, can not only influence vegetation growth, and be also easy to
The problems such as causing nutrient to lack of proper care.
The farm organic fertilizer is with various animal wastes, including human and animal excreta, stalk, animal residue, slaughterhouse give up
Gurry etc., or plant residue, including cake fertilizer class, crop material, fallen leaves, deadwood, turf etc. are raw material, using physics, chemistry, life
The treatment technology that thing or three have concurrently, by processing, including composting, high temperature, anaerobism etc., eliminates harmful substance therein(Cause of disease
Bacterium, disease pest ovum evil, weeds seed etc.), reach innoxious standard and formed.It is to meet relevant national standard(NY525-2002)
And a kind of fertilizer of regulation.
Composite fertilizer described in hypothallus is in Diammonium phosphate (DAP), monoammonium phosphate, nitrophosphate fertilizer, potassium nitrate, potassium dihydrogen phosphate
One or more.
The K class super absorbent resins of 600 times of the preferred water absorbent rate of super absorbent resin described in hypothallus(SAP).Height is inhaled
Water-base resin(SAP)Have the function that to improve hypothallus moisture capacity, increase available water and suppress evaporation, moisture can be delayed
Reach the time of wilted point, be improved the drought-resistant ability of plant.
Polyacrylamide described in hypothallus(PAM)Preferred molecular weight is 10,000,000, and degree of hydrolysis is 20% PAM.Polypropylene
Acid amides can improve the rainfall infiltration amount of hypothallus, make the contributing time delay of side slope face, reduce side slope face diameter flow, and can improve water
The content of stable aggregate, makes the corrosion resistance of hypothallus strengthen, and polyacrylamide can also increase hypothallus porosity, make base
Matter layer becomes loose, good permeability and gas permeability is maintained, beneficial to vegetation growth.
Seed layer described in step 2 include building highway caused by cohesive soil with low liquid digging soil, make compost treatment in advance
Stalk fibre, farm organic fertilizer, composite fertilizer, super absorbent resin, polyacrylamide, indigenous plant seed.
The usage ratio of each component is caused cohesive soil with low liquid digging soil of building highway in seed layer:Make heap in advance
The stalk fibre of fertilizer processing:Farm organic fertilizer:Composite fertilizer:Super absorbent resin:Polyacrylamide=60kg:1500g: 450g:
30~50g:30g:10g, the cladding thickness of seed layer are 3cm, the dosage of every square metre of side slope face indigenous plant seed for 15 ~
50g。
In the preferred prairie milk vetch of indigenous plant seed, wild oat fruit, rhizoma imperatae, caragana, shrub lespedeza seed described in step 2
It is one or more.
Indigenous plant of the present invention is to undergo very long evolutionary process local, the habitat bar for being best able to adapt to local
Part, its physiology, heredity, morphological feature and local natural conditions are adapted, and the country native country with stronger adaptability is planted
Thing.When to cohesive soil with low liquid slope greening, indigenous plant used herbaceous plant prairie milk vetch preferably of one's native land
(Leguminosae), wild oat fruit (Avena sativa L) and rhizoma imperatae (Imperatacylindrica), Indigenous Shrub Species plant
Caragana (Caragana sinica) and shrub lespedeza (Lespedeza bicolorTurcz).Can arbitrarily it be selected according to actual conditions
Select.
The covering dosage of non-woven fabrics described in step 3 is 28g/m2, the environment of seed fast germination can be built.
The non-woven fabrics should be laid with firmly, close with the contact of side slope face, prevent wind.Vegetable seeds sow after the completion of one week
Irrigation times are adjusted according to natural precipitation in by two weeks.Vegetable seeds, which is sowed, completes the latter moon, should check that grass planting is grown comprehensively
Situation, can give after-culture to growing obvious non-uniform position.
The advantages of cohesive soil with low liquid protecting slope ecology method provided by the present invention is:
1st, construction technology is simple, easily operated, it is not necessary to special equipment of sowing grass seeds by duster.
2nd, required raw material sources are extensive, are easy to buy or collect, low engineering cost, and selected indigenous plant is distribution
Extensive plant species, impoverishment tolerant, arid, suitable slope of highway plantation.
3rd, indigenous plant percentage of seedgermination, survival rate are higher, can preferably cover slope surface, plant after vegetative coverage slope surface
Cauline leaf can play the role of rainfall interception, reducing erosion, suppress slope runoff.Stalk fibre and root system of plant in hypothallus
Slope surface can be reinforced by anastomosis, reinforced action by being combined together, and can effectively reduce wind erosion and Frozen-thawed cycled pair
The influence of slope surface.
4th, afforestation effect is good, and maintenance management, application easy to spread is not required after 45 days in construction.
Method provided by the present invention takes full advantage of the low liquid limit silty that agricultural wastes straw and constructing highway produce
Clay digging soil, reduces the measure of the engineering protection such as linked network, concrete skeleton and geotechnical grid and plants the earthwork dosage of loam, drop
Low cost, is combined with preferable indigenous plant, can effectively improve the green percentage and storage rate of side slope, form stable plant
Group.This method is suitable for the cohesive soil with low liquid protecting slope ecology neck that the engineerings such as traffic, building, municipal administration, water conservancy are formed
Domain, is particularly suitable for the cohesive soil with low liquid Techniques of Ecological Protection in Expressway Side Slope of Semi-arid Areas of Northern China.
Brief description of the drawings
Fig. 1 is the afforestation effect schematic diagram of cohesive soil with low liquid side slope after the completion of the method for the invention.Respectively marked in figure
The implication of knowledge is:1- indigenous plants, 2- cohesive soil with low liquid side slopes, the stalk fibre in 3- hypothalluses, 4- hypothalluses.
Embodiment
Content of the present invention is further described in detail with reference to specific embodiment.
Embodiment
On April 20th, 2014, inventor are carried out using the method for the invention in Beijing-highway Langfang, Taibei section
Experiment.The periodic monitoring up to 13 months has been carried out afterwards, and plant grew well, side slope coverage rate is more than 92%, wherein husky
Beat prosperous growing height and reach 1.5 meters or so, side slope soil and slope protection function well, side slope is produced without the sign for washing away and destroying.
Claims (6)
- A kind of 1. cohesive soil with low liquid protecting slope ecology method, it is characterised in that operating procedure includes:Step 1, repairs side slope, removes debris, rubble and floating root in side slope, compacting side slope face soil layer, makes side slope leveling;Step 2, is soaked to side slope face water spray, is then uniformly laid with hypothallus, then uniform fold includes on hypothallus The seed layer of indigenous plant seed;Step 3, to the side slope face for having covered seed layer on cover non-woven fabrics, then wet curing, treats indigenous plant kind After son germination and growth are stablized, non-woven fabrics is removed;Wherein hypothallus described in step 2 include building highway caused by cohesive soil with low liquid digging soil, make compost treatment in advance Stalk fibre, farm organic fertilizer, composite fertilizer, super absorbent resin, polyacrylamide;Usage ratio of each component in every square metre of side slope face is caused cohesive soil with low liquid of building highway in hypothallus Digging soil: the stalk fibre of compost treatment: farm organic fertilizer: composite fertilizer: super absorbent resin: polyacrylamide=60kg is made in advance : 1500g: 450g: 30~50g: 30g: 10g;Super absorbent resin described in hypothallus is the K classes super absorbent resin (SAP) of 600 times of water absorbent rate;Polyacrylamide described in hypothallus is that molecular weight is 10,000,000, and degree of hydrolysis is 20% polyacrylamide;Make the stalk fibre of compost treatment described in hypothallus in advance as manually or mechanical cutting or the agricultural crop straw of crushing, Formed using preceding plus water and lime using common stack retting method retting;Agricultural crop straw is in wheat, rice or maize straw It is at least one;The length of agricultural crop straw is 3~5cm;The retting time is 10 days.
- A kind of 2. cohesive soil with low liquid protecting slope ecology method according to claim 1, it is characterised in that step 1 The side slope leveling is that side slope face camber average value is ± 5cm, and camber maximum is no more than ± 8cm.
- A kind of 3. cohesive soil with low liquid protecting slope ecology method according to claim 1, it is characterised in that hypothallus Described in cohesive soil with low liquid digging soil be unnecessary caused by building highway in cohesive soil with low liquid side slope area or not The earthwork that use, needs are transported can be rolled as roadbed.
- A kind of 4. cohesive soil with low liquid protecting slope ecology method according to claim 1, it is characterised in that hypothallus Described in one or more of the composite fertilizer in Diammonium phosphate (DAP), monoammonium phosphate, nitrophosphate fertilizer, potassium nitrate, potassium dihydrogen phosphate.
- A kind of 5. cohesive soil with low liquid protecting slope ecology method according to claim 1, it is characterised in that step 2 The indigenous plant seed is prairie milk vetch, the one or more in wild oat fruit, rhizoma imperatae, caragana, shrub lespedeza seed;The kind The thickness of seed layer is 3cm;The amount of indigenous plant seed included in seed layer is every square metre of 15~50g of side slope face.
- A kind of 6. cohesive soil with low liquid protecting slope ecology method according to claim 1, it is characterised in that step 3 The covering dosage of the non-woven fabrics is every square metre of side slope face 28g.
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CN111395367A (en) * | 2020-03-30 | 2020-07-10 | 广西路桥工程集团有限公司 | Vegetation concrete greening structure and method for mountain high-speed rocky side slope |
CN111484306B (en) * | 2020-05-06 | 2021-12-24 | 西北农林科技大学 | Sandstone rock slope greening matrix and preparation method and use method thereof |
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