CN107960168A - A kind of greening method of high water level strand barged-in fill - Google Patents
A kind of greening method of high water level strand barged-in fill Download PDFInfo
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- CN107960168A CN107960168A CN201710608611.8A CN201710608611A CN107960168A CN 107960168 A CN107960168 A CN 107960168A CN 201710608611 A CN201710608611 A CN 201710608611A CN 107960168 A CN107960168 A CN 107960168A
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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
-
- 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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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
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- Treatment Of Sludge (AREA)
Abstract
The present invention relates to garden afforestation technology field, there is provided a kind of greening method of high water level strand barged-in fill, includes the following steps：Collect barged-in fill and water is removed in solarization, improve barged-in fill, be laid with isolation bed course, be laid with draining salt discharging pipe, be laid with water drenching layer, stack conditioned soil and plantation is afforested.The beneficial effects of the invention are as follows isolation bed course and salt discharge drainpipe are set in raw water plane, it is high using green belt overall isolation heap, Region control microcirculqtory system, plant suitable environment is built, overcomes the problems such as salt discharge drainage effect that traditional greening technique occurs after high water level barged-in fill use is poor, and the Afforestation Landscape retention time is short, plant survival rate is up to 95%, and facilitate do mechanization operation, greening level can be significantly improved, expands greening scope.
Description
Technical field
The present invention relates to garden afforestation technology field, more particularly, to a kind of greening method of high water level strand barged-in fill.
Background technology
In recent years, with coastal cities, the fast development for the port city that especially borders on the sea, urban land wretched insufficiency, mesh
It is preceding largely to use sea silt soil land reclamation, to alleviate the land resource needed for urban construction.Sea silt soil is united after land reclamation
The soil that drainage is formed, is referred to as barged-in fill on bay work, belongs to the hemipelagic sediment of upper river soil erosion.Possess
Some fundamental propertys of soil, such as colloidality, adsorptivity, replacement property etc..Since barged-in fill is not yet by physical weathering, chemical wind
Change, biologic weathering, do not form soil also, can only be referred to as matrix in principle, mechanical component be all based on powder, clay,
Sand grain content is seldom.Since unreasonable particle forms so that soil is without structure, and hardened consolidation when doing is muddy when wet.Soluble salt
Divide content high, generally 1.2-2.5%, can be average also 2.1% more than 8.0%.PH value is generally in 8.31-8.71
Between, the content of organic matter is extremely low, generally 1% or so.This high-alkali low foster soil of high salt, venting and water permeable ability is very poor, directly
Connect be washed with water it is saline and alkaline, it is difficult to prove effective, it is thus impossible to the directly plantation greening on barged-in fill.
On the other hand, substantial amounts of municipal sludge is produced during municipal sewage treatment.Municipal sludge mainly have microorganism,
Organic debris, inorganic particle, colloid etc. form, and are a kind of complex mixtures based on organic principle, wherein containing
The metallic element such as nutrient and iron, magnesium, zinc such as nitrogen, phosphorus, potassium compared with horn of plenty.Organic matter is the master of plant and microorganism growth
Nutriment is wanted, the organic principle for biological utilisation that contains in municipal sludge, which includes polysaccharide, fat, nitrogenous, sulphur, phosphorus, to be had
Machine compound etc., these substance advantageous then improve the permeability of soil particle, gas permeability and poly- in the formation of agron
Collection property.The particularly development of sludge composting technology, sludge are made organic in sludge under the action of microorganism by hot fermentation
Thing is mineralization, humification and innoxious and become composting fertilizer, and sludge composting can not only eliminate the pathogenic microorganism in sludge, also
The biological effectiveness of heavy metal can be reduced, stabilizes the organic matter in sludge.In addition, the country is more than 85% coal-burning power plant at present
Flue gas desulfurization use gypsum, by the SO in flue gas2With desulfurizing agent CaCO3React after forcing to aoxidize, can produce a large amount of
Gypsum.Accessory substance caused by this desulfurization at present, does not find good digestion approach yet, is hidden existing for whole technique
Suffer from.Its main component is CaSO4·2H2O and CaSO3Mixture, and must or have containing plants such as abundant S, Ca, Si
The mineral nutrition of benefit, is a good soil conditioner, soil pH value can be reduced by being mainly manifested in, and improve the granule knot of soil
Structure, chesson, there is provided the necessary part nutrient of plant.
To accelerate the needs of urban economy construction, it should improve the ecological environment, increase greenery area, improve afforestation coverage rate,
It is extremely urgent to the demand of environmental greening, beautification, brightening.But directly greening is difficult on barged-in fill.At present, on barged-in fill
Using the construction method of " soil moved in improve the original ", anthropogenic soil plantation greening is bought from periphery mostly for greening.Now, country has forbidded strictly
Ruin and plough bad ground, therefore, large area is difficult to carry out using the method for soil moved in improve the original greening, also, causes the cost of development ＆ construction to increase.Institute
With barged-in fill transformation in situ, the meaning of improvement are more great and urgent.
Prior art is concentrated mainly on (less than 1.5 meters) areas of phreatic low at present, is had using soil moved in improve the original or transformation in situ
Successful story, but often there is draining in the area of higher level (more than 1.0 meters), traditional technology and method application effect
Salt discharge effect is poor, Afforestation Landscape efficiency time is short, and rate is high repeatedly or needs to carry out local moulding for engineering, it is impossible to realizes that machinery is turned into
The problems such as industry, perplex and limit local greening level always.
The content of the invention
The object of the present invention is to provide a kind of holding effect it is long, it is easy for construction, can do mechanization operation, maintenance is simple, cost is low, should
With the greening method of the wide high water level strand barged-in fill of scope, isolation bed course and salt discharge drainpipe, profit are set in raw water plane
High, the Region control microcirculqtory system with green belt overall isolation heap, builds plant suitable environment, overcomes traditional greening technique and exist
The problems such as salt discharge drainage effect occurred after high water level barged-in fill use is poor, and the Afforestation Landscape retention time is short, and convenient machinery
It is turned into industry, greening level can be significantly improved, expands greening scope.
The technical scheme is that：A kind of greening method of high water level strand barged-in fill, includes the following steps：
1) collect barged-in fill and water is removed in solarization：The earthwork needed according to greening, it is high to collect hydraulic reclamation mound, and solarization is to drain water
The moisture to barged-in fill is divided to be down to less than 30%；
2) barged-in fill is improved：Above-mentioned barged-in fill and municipal sludge be mixed to form composite soil according to volume ratio, then to
A certain proportion of desulfurated plaster is added in composite soil, is stacked after mixing stand-by；
3) it is laid with isolation bed course：The isolation bed course of 5-10cm is laid with rubble；
4) it is laid with draining salt discharging pipe：The draining salt discharging pipe of a diameter of 10-20cm is rationally laid with according to greening position and direction,
Aperture is offered on draining salt discharging pipe and uses non-woven wraps；
5) it is laid with water drenching layer：The rubble of 10-15cm is laid with above draining salt discharging pipe as water drenching layer；
6) conditioned soil is stacked：The conditioned soil mixed in step 2) is deposited on above-mentioned water drenching layer, pour enough water into
Alkali drops in row salt discharge；
7) plantation greening：Turf plant or plant landscape tree, pour enough fresh water in time.
Further, municipal sludge described in step 2) is sludge of the municipal wastewater treatment plant after compost fermentation.
Further, the volume mixture ratio of barged-in fill and municipal sludge is 1 in step 2):(0.3-1), desulfurated plaster
Adding proportion be 0.5-0.7% (mass percent).
The technical principle of the present invention is as follows：Barged-in fill is fundamentally improved, barged-in fill is transformed into suitable for plant growth
Soil；Using sludge and composting production, the content of organic matter of barged-in fill can be improved, promotes the activity of edaphon, improved
Soil texture, promotes soil granular to be formed；Add desulfurated plaster, effectively increase soil in calcium ion, promote soil sodium from
The exchange capacity of son, contributes to salt discharge to arrange alkali；Since level of ground water is higher, processing is increased using the barged-in fill improved；The bottom of at
Portion is laid with rubble as isolation bed course, entirely prevents the immersion of underground moisture and salinity, ensure that the independence of heap high part；Every
From water drenching layer is laid with bed course, ensures the unimpeded of bottom discharge salt discharging pipe, excessive moisture in the greening soil body is discharged in time, so that
Prevent the waterlogging of subenvironment and the accumulation of salt water, ensure the ventilation capacity of the soil body；And the application of salt discharge drainpipe makes the greening soil body
In unnecessary moisture can drain in time, once the soil body has salt damage, also can ensure greening in time by pouring into the fresh water desalinization of soil by flooding or leaching
Persistence；Isolate bed course, the application of water drenching layer and draining salt discharging pipe, can make the part facility possess desalinization of soil by flooding or leaching salt discharge function, energy
Shorten the time of conditioned soil salt reduction drop alkali, improve efficiency and fresh-water-saving dosage.
The present invention has the advantages and positive effects of：
1st, using sludge and composting production, the content of organic matter of barged-in fill can be improved, promotes the activity of edaphon,
Improve soil texture, promote soil granular to be formed；Accessory substance desulfurated plaster after being handled using means of flue gas desulfurization of power plant, is effectively increased
Calcium ion in soil, promotes the exchange capacity of soil sodium ion, contributes to salt discharge to arrange alkali；Above-mentioned sludge and desulfurated plaster are
Now discarded object in the industrial production, uses the problem of outlet in the improvement of barged-in fill, advantageously accounting for discarded object；
2nd, by the way that the hydraulic reclamation mound after improvement is high, and isolation bed course and salt discharge drainpipe, energy are set in raw water plane
Make conditioned soil and original barged-in fill completely separated, and the influence of the height from level of ground water, it can effectively suppress the accumulation of salt in the surface soil, ensure
The achievement continuation of afforestation project, plant survival rate is up to 95%；
The 3rd, isolation bed course and salt discharge drainpipe are set in raw water plane, construction is more convenient, is adapted to large area to implement, can machine
Tool is turned into industry；
4th, rubble is laid with as water drenching layer, is grown, is ensured every salt and leaching compared to the water drenching layer material such as straw curtain service life
The long-term effect of water, and cost is lower；
5th, it is easy for construction without ridging using structural relief of barged-in fill after improvement, it is adapted to large area to implement, just
In do mechanization operation, you can be laid with lawn, shrub, arbor etc. can also be planted；
6th, without using covering with new soil, cost is reduced, suitable for the mechanized operation of large area, reduces cost of labor and raising
Production efficiency；
7th, high water level region can be not only useful in, more can be suitably used for the afforestation project of relatively low level of ground water.
Brief description of the drawings
Fig. 1 is the construction model figure of the present invention.
In figure：
1st, bed course 2, draining salt discharging pipe 3, water drenching layer are isolated
4th, conditioned soil
Embodiment
Elaborate below in conjunction with the accompanying drawings with specific embodiment to the present invention, embodiments below is merely to illustrate this
Invention and not limitation of the present invention.
Embodiment 1
A kind of greening method of high water level strand barged-in fill, includes the following steps：
1) collect barged-in fill and water is removed in solarization：Collect 600m3Hydraulic reclamation mound is high, 4 days drainings of solarization, the moisture drop of barged-in fill
To 25%；
2) barged-in fill is improved：By barged-in fill original soil and sludge of the municipal wastewater treatment plant after compost fermentation according to volume ratio 1:
0.3 mixing, while add 18kg desulfurization gypsum powders and be uniformly mixed；
3) it is laid with isolation bed course：It will treat that afforested areas carry out prepartion of land, compacting, with the isolating pad of rubble laying 10cm thickness
Layer；
4) it is laid with draining salt discharging pipe：The PVC draining salt discharging pipes of a diameter of 15cm are rationally laid with according to greening position and direction,
Gradient offers aperture on 0.3%, draining salt discharging pipe and uses non-woven wraps；
5) it is laid with water drenching layer：The rubble of 10cm thickness is laid with above draining salt discharging pipe as water drenching layer, it is then smooth；
6) conditioned soil is stacked：The conditioned soil mixed in step 2) is deposited on above-mentioned water drenching layer, is poured in conditioned soil
Water, is poured per necromancer by 1 ton of water, and pouring divides 3-5 progress, is poured once every 3 days, is poured enough water and is carried out salt discharge drop
Alkali；
7) suitable turf is planted, and transplants shrub and arbor.
Embodiment 2
Barged-in fill greening demonstration ground, gross area 2000m near the Gang Hong roads of Binhai New Area in Tianjin Nan Gang industrial parks2,
Afforested using the greening method, constructed according to the construction model figure shown in attached drawing 1：
1) collect barged-in fill and water is removed in solarization：Collect 600m3Hydraulic reclamation mound is high, the moisture of 5 days drainings of solarization to barged-in fill
It is down to 15%；
2) barged-in fill is improved：By barged-in fill original soil and sludge of the municipal wastewater treatment plant after compost fermentation according to volume ratio 1:1
Mixing, is mixed into 2m3Composite soil, while add 20kg desulfurization gypsum powders and be uniformly mixed；
3) it is laid with isolation bed course 1：It will treat that afforested areas (long 100m, wide 20m) carry out prepartion of land, be compacted, use is a diameter of
The rubble of 0.6-1.0cm sizes is laid with the isolation bed course of 5cm thickness；
4) it is laid with draining salt discharging pipe 2：The PVC draining salt discharging pipes of a diameter of 15cm, slope are laid with according to greening position and direction
For drop 0.3%, the length of draining salt discharging pipe is 380m, offers aperture on draining salt discharging pipe and uses non-woven wraps；
5) it is laid with water drenching layer 3：The rubble of 15cm is laid with above draining salt discharging pipe as water drenching layer, it is then smooth；
6) conditioned soil 4 is stacked：The conditioned soil mixed in step 2) is deposited on above-mentioned water drenching layer, is poured in conditioned soil
Water, is poured per necromancer by 1-1.5 tons of waters, and pouring divides 3-5 progress, is poured once every 3 days, and when pouring for the first time, 1 ton is poured
Pour water middle addition 1kg soil conditioners, after when pouring several times, add 0.5kg soil conditioners in 1 ton of watering pours water.Pour every time
Afterwards second day, soil is gathered, measures pH value and salt content；
7) plants such as Chinese wax, Chinese scholar tree, Malus spectabilis, silk tree, the rose of Sharon are planted, ground is laid with turf, and plant survival rate is up to 95%.
Nutrient change before and after desalting effect and the barged-in fill improvement of barged-in fill is as shown in table 1 below and 2：
The desalting effect of 1 barged-in fill of table
| Frequency of irrigation | Original barged-in fill | After 1 time | After 2 times | After 3 times | After 4 times |
| Total salt quantity % | 3.63 | 1.52 | 0.76 | 0.45 | 0.38 |
| PH value | 8.58 | 7.92 | 7.68 | 7.42 | 7.50 |
The front and rear Nutrient change of 2 barged-in fill of table improvement
| Index | Original barged-in fill | Conditioned soil |
| Total salt quantity % | 3.63 | 0.38 |
| PH value | 8.58 | 7.50 |
| Available nitrogen (mg/kg) | 22.8 | 286 |
| Rapid available phosphorus (mg/kg) | 12.1 | 75 |
| Available potassium (mg/kg) | 573 | 780 |
| Organic matter (g/kg) | 5.54 | 20.1 |
Two embodiments of the present invention are described in detail above, but the content is only the preferable implementation of the present invention
Example, it is impossible to be construed as limiting the practical range of the present invention.All all the changes and improvements made according to the present patent application scope
Deng, should all still belong to the present invention patent covering scope within.
Claims (3)
- A kind of 1. greening method of high water level strand barged-in fill, it is characterised in that：Include the following steps：1) collect barged-in fill and water is removed in solarization：The earthwork needed according to greening, it is high to collect hydraulic reclamation mound, and solarization is to drain moisture extremely The moisture of barged-in fill is down to less than 30%；2) barged-in fill is improved：Above-mentioned barged-in fill and municipal sludge be mixed to form composite soil according to volume ratio, then to mixing A certain proportion of desulfurated plaster is added in soil, is stacked after mixing stand-by；3) it is laid with isolation bed course：The isolation bed course of 5-10cm is laid with rubble；4) it is laid with draining salt discharging pipe：The draining salt discharging pipe of a diameter of 10-20cm, draining salt discharge are laid with according to greening position and direction Aperture is offered on pipe and uses non-woven wraps；5) it is laid with water drenching layer：The rubble of 10-15cm is laid with above draining salt discharging pipe as water drenching layer；6) conditioned soil is stacked：The conditioned soil mixed in step 2) is deposited on above-mentioned water drenching layer, enough water is poured and is arranged Alkali drops in salt；7) plantation greening：Turf plant or plant landscape tree, pour enough fresh water in time.
- 2. the greening method of high water level strand according to claim 1 barged-in fill, it is characterised in that：City described in step 2) City's sludge is sludge of the municipal wastewater treatment plant after compost fermentation.
- 3. the greening method of high water level strand according to claim 2 barged-in fill, it is characterised in that：Barged-in fill in step 2) Volume mixture ratio with municipal sludge is 1:(0.3-1), the adding proportion of desulfurated plaster is 0.5-0.7% (quality percentages Than).
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110679226A (en) * | 2019-10-23 | 2020-01-14 | 上海园林绿化建设有限公司 | Construction method combining dredger fill improvement and planting hole improvement |
| CN111149602A (en) * | 2020-01-19 | 2020-05-15 | 中交天航环保工程有限公司 | Coral reef sand tree and shrub planting and greening method in high-temperature high-salt strong wind environment |
| CN113711724A (en) * | 2021-07-16 | 2021-11-30 | 中铁十六局集团置业投资有限公司 | Method for removing salt, controlling water and increasing fertilizer of saline-alkali soil in hydraulic filling area and application thereof |
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| CN106069531A (en) * | 2016-06-30 | 2016-11-09 | 深圳市东华园林股份有限公司 | Beach saline land seedling growth method |
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| CN101138294A (en) * | 2006-09-08 | 2008-03-12 | 沧州市农林科学院 | High-water level halomorphic soil region selective controlling and greening technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110679226A (en) * | 2019-10-23 | 2020-01-14 | 上海园林绿化建设有限公司 | Construction method combining dredger fill improvement and planting hole improvement |
| CN111149602A (en) * | 2020-01-19 | 2020-05-15 | 中交天航环保工程有限公司 | Coral reef sand tree and shrub planting and greening method in high-temperature high-salt strong wind environment |
| CN113711724A (en) * | 2021-07-16 | 2021-11-30 | 中铁十六局集团置业投资有限公司 | Method for removing salt, controlling water and increasing fertilizer of saline-alkali soil in hydraulic filling area and application thereof |
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