CN108990460A - Beach saline land modification method, beach saline land structure-improved and application - Google Patents
Beach saline land modification method, beach saline land structure-improved and application Download PDFInfo
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- CN108990460A CN108990460A CN201810921534.6A CN201810921534A CN108990460A CN 108990460 A CN108990460 A CN 108990460A CN 201810921534 A CN201810921534 A CN 201810921534A CN 108990460 A CN108990460 A CN 108990460A
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- beach saline
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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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
Abstract
The present invention provides a kind of beach saline land modification method, beach saline land structure-improved and applications, are related to alkaline land improving recovery technique field.The beach saline land modification method, by closed drainage layer, separation layer and cultivation layer are set in beach saline land soil layer, it can be achieved that beach saline land quick desalination, while the accumulation of salt in the surface soil can be prevented, topsoil soils structure and fertility can also be improved, realize the effective use of water resource.Practice have shown that can gradually improve the soil regime in salt-soda soil using the beach saline land modification method, by the improvement of 3-5, salt-soda soil can be used to the plantation of general crop.The present invention also provides a kind of beach saline land structure-improveds, including closed drainage layer, separation layer and cultivation layer.The present invention also provides the application of above-mentioned beach saline land modification method or beach saline land structure-improved in Saline-alkali Field Control reparation field.
Description
Technical field
The present invention relates to alkaline land improving recovery technique field, in particular to a kind of beach saline land modification method,
Beach saline land structure-improved and application.
Background technique
China mainland coastline is about 1.8 × 10 to Guangxi Beilun Estuary North gets Yalujiang Estuary, south4Km is dispersed with about
14.0×104km2Beach saline land, be the important reserve land resources in China.Coastal region soil salt content is high, underground water
Shallow by seawater influence buried depth and salinity is high, the salinity in underground water exists under the action of earth's surface violent evaporation with Upwelling region
It is accumulated in soil layer, the viscous weight of the soil texture, structure is poor, gas permeability is bad.In order to improve development and utilization salt-soda soil, coastal region is carried out
" gravel separation layer+soil moved in improve the original ", " hidden pipe row salty+fresh water pressure alkali+soil moved in improve the original ", " platform have been found out in a large amount of exploration and trial, research
The beach saline lands harness and developments such as field leaching alkali " utilize method.However, being deposited due to being restricted by coastal region shortage of fresh water
In final management and maintenance and maintain difficult problem.Therefore, how the hydrogeologic condition special for coastal region, realize coastal saline-alkali
Ground quick desalination, the prevention accumulation of salt in the surface soil improve topsoil soils structure and fertility, realize that water resource recycles, to reach strand salt
Alkali ground sustainable improvement these problems urgent need to resolve.
In view of this, the present invention is specifically proposed at least one of to solve the above technical problems.
Summary of the invention
The first purpose of this invention is to provide a kind of beach saline land modification method, which can realize strand
The quick desalination in salt-soda soil, while the accumulation of salt in the surface soil can be prevented, additionally it is possible to improve topsoil soils structure and fertility, realizes the effective of water resource
It utilizes.
Second object of the present invention is to provide a kind of beach saline land structure-improved.
Third object of the present invention is to provide a kind of beach saline land modification method or beach saline land structure-improved
Application.
In order to realize above-mentioned purpose of the invention, the following technical scheme is adopted:
The present invention provides a kind of beach saline land modification methods, comprising the following steps:
(a) in the salt-soda soil soil layer underground trench digging to desalination, hidden pipe and collector pipe is buried, closed drainage layer is formed；
(b) salt-soda soil topsoil is excavated, stalk is laid with and spreads fertilizer over the fields microbial bacterial agent, forms separation layer；
(c) calcium superphosphate and organic fertilizer are added into salt-soda soil topsoil, after mixing backfill leveling, and be laid with drop
Pipe is filled, cultivation layer is formed.
Further, on the basis of technical solution of the present invention, in step (a), hidden pipe buried depth is 0.8-1.5m, hidden pipe
Spacing is 20-40m；
Preferably, in step (a), hidden pipe is tilted to water outlet direction, and collector pipe is connected with one end of hidden pipe water outlet；
Preferably, in step (a), hidden pipe pipeline gradient is 0.5 ‰ -0.7 ‰, and the pipeline gradient that catchments is 0.8 ‰ -
1.2‰。
Further, on the basis of technical solution of the present invention, in step (b), 40- will be dug under the topsoil of salt-soda soil
50cm, by the soil dug out be piled up in side vacant lot, it is smooth soil face after, uniformly spread stalk, and microbial bacteria is spread fertilizer over the fields on stalk
Agent forms separation layer；
Preferably, in step (b), the laying depth of stalk is 20-30cm, and the length of stalk is 1-3cm；
Preferably, in step (b), the dosage of microbial bacterial agent is 3-5kg/ mus；
Preferably, in step (b), microbial bacterial agent includes nitrogen-fixing bacteria, phosphobacteria, B. mucilaginocus, VA Mycorrhizal Fungi or photosynthetic bacteria
In any one or at least two it is compound.
Further, on the basis of technical solution of the present invention, in step (c), the dosage of calcium superphosphate is 20-
25kg/ mus, the dosage of organic fertilizer is 80-100kg/ mus；
Preferably, in step (c), the laying spacing of drip irrigation pipe is 1-2m.
It further, further include step (d) on the basis of technical solution of the present invention, in the topsoil of salt-soda soil
Salt plant is inhaled in plantation；
Preferably, step (d), it is described inhale salt plant include in Suaeda salsa, salicornia europaeal or saltbush any one or
At least two combination.
Further, on the basis of technical solution of the present invention, in step (a), one end and the sump phase of collector pipe
Connection, sump are connected by pipeline with reservoir, and the seepage flow being discharged from hidden pipe is emitted into via collector pipe and sump
Reservoir.
The present invention also provides a kind of beach saline land structure-improveds, are obtained using beach saline land modification method, packet
Closed drainage layer, separation layer and cultivation layer are included, the closed drainage layer is set to salt-soda soil soil layer underground, the cultivation layer setting
In saline and alkaline surface layer, the separation layer is set between the closed drainage layer and the cultivation layer；
The closed drainage layer is mainly laid with by hidden pipe and collector pipe；
The separation layer is mainly laid with by stalk, and microbial bacterial agent is spread fertilizer over the fields on stalk；
It is added with calcium superphosphate and organic fertilizer in the soil of the cultivation layer, and is equipped with drip irrigation pipe.
Further, on the basis of technical solution of the present invention, the beach saline land structure-improved, further includes catchmenting
Well and reservoir；
One end of the collector pipe is connected with sump, and sump is connected by pipeline with reservoir, from hidden pipe
The seepage flow of discharge is emitted into reservoir via collector pipe and sump.
Further, on the basis of technical solution of the present invention, the hidden pipe buried depth is 0.8-1.5m, and hidden pipe spacing is
20-40m；
And/or the hidden pipe pipeline gradient is 0.5 ‰ -0.7 ‰, the pipeline gradient that catchments is 0.8 ‰ -1.2 ‰；
And/or the soil depth of the separation layer is 40-50cm；
And/or the laying spacing of drip irrigation pipe is 1-2m in the cultivation layer.
The present invention also provides a kind of above-mentioned beach saline land modification methods or beach saline land structure-improved in salt-soda soil
Application in improvement reparation.
Compared with prior art, it beach saline land modification method provided by the invention, beach saline land structure-improved and answers
With having the advantage that
(1) the present invention provides a kind of beach saline land modification methods, by dividing into the salt-soda soil soil layer to desalination
Closed drainage layer is set, level of ground water can be controlled in critical depth hereinafter, quickening beach saline land soil body desalination rate, inhibits to return
Salt, while realizing the effective use of water resource；Straw by the way that separation layer is arranged in the alkaline land soil to desalination, in separation layer
Stalk can increase soil organic matter content and soil layer water penetration, improve closed drainage desalting efficiency, while cutting off soil salt with water
Divide rising passway, inhibit the surface layer accumulation of salt in the surface soil, the microbial bacterial agent in separation layer can improve soil texture, and stalk is promoted to rot and have
Machine matter is decomposed；Calcium superphosphate and organic fertilizer are added in the cultivation layer in salt-soda soil, phosphorus element can be provided for plant growth, reduce salt
Alkaline earth pH value can also improve soil texture, prevent topsoil hardened, improve Infiltration Characteristics in Field Soils, accelerate soil salinity leaching
Process is laid with drip irrigation pipe in cultivation layer and carries out timely and appropriate discovery irrigation, can save water, and avoids soil caused by excessively pouring
Secondary salinization.
Beach saline land modification method provided by the invention, by beach saline land soil layer be arranged closed drainage layer,
Separation layer and cultivation layer, it can be achieved that beach saline land quick desalination, while the accumulation of salt in the surface soil can be prevented, additionally it is possible to improve topsoil soils knot
Structure and fertility realize the effective use of water resource.Practice have shown that can gradually be improved using the beach saline land modification method
The soil regime in salt-soda soil, by the improvement of 3-5, salt-soda soil can be used to the plantation of general crop.
(2) the present invention provides a kind of beach saline land structure-improved, including closed drainage layer, separation layer and cultivation layer,
Wherein, closed drainage layer is mainly laid with by hidden pipe and collector pipe, and separation layer is mainly laid with by stalk, and on stalk
Microbial bacterial agent is spread fertilizer over the fields, is cultivated added with calcium superphosphate and organic fertilizer in the soil of layer, and be equipped with drip irrigation pipe；By above-mentioned each
The particular design of layer, so that beach saline land quick desalination, while the accumulation of salt in the surface soil can be prevented, additionally it is possible to improve topsoil soils structure and fertilizer
Power realizes the effective use of water resource.
(3) the present invention also provides above-mentioned beach saline land modification method or the structure improved applications of beach saline land.Mirror
The advantage possessed by above-mentioned beach saline land modification method or beach saline land structure-improved, so that it is to strand to be repaired
There is extensive adaptability in salt-soda soil, and rehabilitation cost is low, engineering applicability is strong, can be effectively improved the soil regime of beach saline land,
Repairing field in Saline-alkali Field Control has good and wide application prospect.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is the structure improved schematic diagram of beach saline land provided by the invention；
Connection schematic diagram of the Fig. 2 between hidden pipe provided by the invention, collector pipe, sump and reservoir.
Appended drawing reference:
10- closed drainage layer；11- hidden pipe；12- collector pipe；13- sump；14- reservoir；20- separation layer；30- cultivation
Layer；31- drip irrigation pipe.
Specific embodiment
Embodiment of the present invention is described in detail below in conjunction with embodiment, but those skilled in the art will
Understand, the following example is merely to illustrate the present invention, and is not construed as limiting the scope of the invention.It is not specified in embodiment specific
Condition person carries out according to conventional conditions or manufacturer's recommended conditions.Reagents or instruments used without specified manufacturer is
The conventional products that can be obtained by commercially available purchase.
According to an aspect of the invention, there is provided a kind of beach saline land modification method, comprising the following steps:
(a) in the salt-soda soil soil layer underground trench digging to desalination, hidden pipe and collector pipe is buried, closed drainage layer is formed；
(b) salt-soda soil topsoil is excavated, stalk is laid with and spreads fertilizer over the fields microbial bacterial agent, forms separation layer；
(c) calcium superphosphate and organic fertilizer are added into salt-soda soil topsoil, after mixing backfill leveling, and be laid with drop
Pipe is filled, cultivation layer is formed.
Specifically, in step (a), hidden pipe salt discharge is set in underground, the salinity in soil can be made to drain with water, and by underground
Water level control is in critical depth hereinafter, reaching Soil Desalting and preventing secondary salinization purpose.Hidden pipe setting can accelerate strand
Salt-soda soil soil body desalination rate inhibits the accumulation of salt in the surface soil.
Collector pipe is used to collect the seepage flow in hidden pipe.
In step (b), separation layer is mainly laid with by stalk, and microbial bacterial agent is spread fertilizer over the fields on stalk.Separation layer
In stalk can increase soil organic matter content and soil layer water penetration, improve closed drainage desalting efficiency, while cutting off soil salt
Divide with moisture rising passway, inhibits the surface layer accumulation of salt in the surface soil.In addition, crop material is recycled, it is advantageously implemented straw-returning, avoids straw
Stalk burns the pollution to atmospheric environment.The type of stalk is not especially limited, and it is common to may be, for example, corn stover, wheat stalk etc.
Crop material.
Microbial bacterial agent in separation layer can improve soil texture, promote stalk rotten and organic matter decomposition.Microorganism
The type of microbial inoculum can be not especially limited, and be selected according to actual needs.
In step (c), cultivation layer is arranged in saline and alkaline surface layer, cultivates and adds calcium superphosphate and organic fertilizer in the soil of layer.
Coastal saline-alkali soil effectively phosphorus content is lower, not only can provide phosphorus element after applying calcium superphosphate for plant growth,
Its resistance is improved, can also soil pH value be made to reduce, mitigates harm of the salinity to root system of plant；Organic fertilizer and calcium superphosphate apply soil
Loose agglomerate is formed after earth, improves soil texture, moisture, which easily penetrates, dissolves Leaching Properties of Soluble Phosphorus, the fertilizer efficiency of calcium superphosphate is improved,
Promote plant that phosphorus is absorbed and utilized.As it can be seen that having certain synergistic function between calcium superphosphate and organic fertilizer.For having
The specific type of machine fertilizer is not construed as limiting, and may be, for example, cattle and sheep excrement, barnyard manure or farmyard manure etc..
Drip irrigation pipe is laid in cultivation layer and carries out timely and appropriate discovery irrigation, needs regimen condition to be fitted in due course according to soil and plant
Amount is irrigated, and is saved water, and soil secondary salinization caused by excessively pouring is avoided.
Beach saline land modification method provided by the invention passes through matching for above-mentioned closed drainage layer, separation layer and cultivation layer
The quick desalination, it can be achieved that beach saline land is closed, while the accumulation of salt in the surface soil can be prevented, additionally it is possible to improve topsoil soils structure and fertility, it is real
The effective use of existing water resource.
As a kind of optional embodiment, hidden pipe buried depth is 0.8-1.5m in step (a), and hidden pipe spacing is 20-40m.
Hidden pipe buried depth it is typical but non-limiting be, for example, 0.8m, 0.9m, 1.0m, 1.1m, 1.2m, 1.3m, 1.4m or
1.5m.Typical but non-limiting hidden pipe spacing is, for example, 20m, 25m, 30m, 35m or 40m.
It should be noted that hidden pipe buried depth is bigger, the range influenced is bigger, and being laid with spacing can also suitably increase；For
The sticky soil property or silty sand soil property of soil permeability difference reduce while should suitably reducing buried depth and are laid with spacing, that is, use shallow embedding
Densely covered formula.
On above-mentioned technical proposal basis, hidden pipe is laid in parallel, is tilted to water outlet direction, and collector pipe and hidden pipe are discharged
Mouthful one end (low side) be connected collecting for realizing hidden pipe seepage flow.
Preferably, hidden pipe pipeline gradient is 0.5 ‰ -0.7 ‰, and the pipeline gradient that catchments is 0.8 ‰ -1.2 ‰.
Typical but non-limiting hidden pipe pipeline gradient is, for example, 0.5 ‰, 0.6 ‰ or 0.7 ‰, typical but non-limiting
The pipeline gradient that catchments is, for example, 0.8 ‰, 0.9 ‰, 1.0 ‰, 1.1 ‰ or 1.2 ‰.
As a kind of optional embodiment, in step (b), 40-50cm will be dug under the topsoil of salt-soda soil, the soil that will be dug out
Be piled up in side vacant lot, it is smooth soil face after, uniformly spread stalk, and microbial bacterial agent is spread fertilizer over the fields on stalk, formed separation layer.
As a kind of optional embodiment, the laying depth of stalk is 20-30cm, and the length of stalk is 1-3cm.
The typical but non-limiting laying depth of stalk is 20cm, 22cm, 24cm, 25cm, 26cm, 28cm or 30cm.Straw
The typical but non-limiting length of stalk is, for example, 1cm, 1.5cm, 2cm, 2.5cm or 3cm.By laying depth to stalk and
The restriction of length, so that being formed by the water permeability of separation layer more preferably.
As a kind of optional embodiment, the dosage of microbial bacterial agent is 3-5kg/ mus；
Preferably, microbial bacterial agent includes any one in nitrogen-fixing bacteria, phosphobacteria, B. mucilaginocus, VA Mycorrhizal Fungi or photosynthetic bacteria
Kind or at least two it is compound.
By the specific restriction of dosage and type to microbial bacterial agent, so that microbial bacterial agent is for the penetrating of soil
The castering action of property and retain water and nutrients ability becomes apparent from.
As a kind of optional embodiment, the dosage of calcium superphosphate is 20-25kg/ mus in step (c), the dosage of organic fertilizer
It is 80-100kg/ mus；
The typical but non-limiting dosage of calcium superphosphate is, for example, 20kg/ mus, 21kg/ mus, 22kg/ mus, 23kg/ mus,
24kg/ mus or 25kg/ mus；The typical but non-limiting dosage of organic fertilizer is, for example, 80kg/ mus, 85kg/ mus, 90kg/ mus,
95kg/ mus or 100kg/ mus.
As a kind of optional embodiment, the laying spacing of drip irrigation pipe is 1-2m.Typical but non-limiting drip irrigation pipe
Being laid with spacing is 1m, 1.5m or 2m.
It further include step (d) as a kind of optional embodiment, salt plant is inhaled in plantation in the topsoil of salt-soda soil.
Salt plant will be inhaled periodically to gather in every year, a large amount of salt can be taken away from soil, obtains soil salt total amount gradually
It reduces.Salt plant is inhaled by plantation and increases vegetation cover, reduces soil moisture evaporation, prevents cultivation layer salt accumulation,
The organic matter of soil can also be increased simultaneously, improve soil texture, improve soil productivity.
Based on the above technical solution, inhaling salt plant includes any one in Suaeda salsa, salicornia europaeal or saltbush
Or at least two combination.
By the specific restriction to salt plant is inhaled, so that it is significant to the assimilation effect of the salinity in soil.
As a kind of optional embodiment, in step (a), one end of collector pipe is connected with sump, and sump passes through
Pipeline is connected with reservoir, and the seepage flow being discharged from hidden pipe is emitted into reservoir via collector pipe and sump.
In order to make full use of flood season closed drainage, alleviate coastal saline-alkali area water pressure, the pipe end that will catchment and sump
It is connected, is collected to the water being discharged in hidden pipe in sump in time by gravity flow or water pump；Sump is by pipeline and stores
Pond is connected, and is extracted the water in sump into reservoir using suction pump, is that later period plant irrigation or soil salt drench
Elute watering.
By above-mentioned setting, it can be achieved that being recycled to the fresh water (brackish water) collected.
According to the second aspect of the invention, a kind of beach saline land structure-improved is additionally provided, using beach saline land
What modification method obtained, it is specific as illustrated in fig. 1 and 2.The beach saline land structure-improved includes closed drainage layer 10, separation layer 20
With cultivation layer 30, closed drainage layer 10 is set to salt-soda soil soil layer underground, and cultivation layer 30 is set to saline and alkaline surface layer, separation layer 20
It is set between closed drainage layer 10 and cultivation layer 30；
Closed drainage layer 10 is mainly laid with by hidden pipe 11 and collector pipe 12；
Separation layer 20 is mainly laid with by stalk, and microbial bacterial agent is spread fertilizer over the fields on stalk；
It cultivates and is added with calcium superphosphate and organic fertilizer in the soil of layer 30, and be equipped with drip irrigation pipe 31.
Wherein, 11 salt discharge of hidden pipe can be such that the salinity in soil drains with water, and by level of ground water control critical depth with
Under, reach Soil Desalting and prevents secondary salinization purpose；Collector pipe 12 is used to collect the seepage flow in hidden pipe 11.
Beach saline land soil body desalination rate can be accelerated by the closed drainage layer 10 that hidden pipe 11 and collector pipe 12 are formed, inhibited
The accumulation of salt in the surface soil.
Stalk in separation layer 20 can increase soil organic matter content and soil layer water penetration, improve closed drainage desalination effect
Rate, while soil salt is cut off with moisture rising passway, inhibit the surface layer accumulation of salt in the surface soil, the microbial bacterial agent in separation layer can improve soil
Earth structure promotes stalk rotten and organic matter decomposition.
It cultivates and adds calcium superphosphate and organic fertilizer in layer 30, phosphorus element can be provided for plant growth, reduce saline-alkali soil pH value,
Soil texture can also be improved, prevent topsoil hardened, improve Infiltration Characteristics in Field Soils, accelerate soil salinity leaching process, planting
It trains and is laid with the progress timely and appropriate discovery irrigation of drip irrigation pipe 31 in layer 30, can save water, avoid Soil Secondary caused by excessively pouring
Salination.
By the particular design of above layers, so that beach saline land quick desalination, while the accumulation of salt in the surface soil can be prevented, additionally it is possible to change
Kind topsoil soils structure and fertility, realize the effective use of water resource.
As a kind of optional embodiment, beach saline land structure-improved further includes sump 13 and reservoir 14；
One end of collector pipe 12 is connected with sump 13, and sump 13 is connected by pipeline with reservoir 14, from dark
The water being discharged in pipe 11 is emitted into reservoir 14 via collector pipe 12 and sump 13.
The setting of sump 13 and reservoir 14 realizes the utilization to the fresh water (brackish water) collected, alleviates strand
RS in Alkali Region water pressure.
As a kind of optional embodiment, hidden pipe buried depth is 0.8-1.5m, and hidden pipe spacing is 20-40m；
And/or hidden pipe pipeline gradient is 0.5 ‰ -0.7 ‰, the pipeline gradient that catchments is 0.8 ‰ -1.2 ‰；
And/or the soil depth of separation layer is 40-50cm；
And/or the laying spacing of drip irrigation pipe is 1-2m in cultivation layer.
By the restriction to closed drainage layer 10, separation layer 20 and the cultivation each parameter of layer 30, so that beach saline land changes
The desalination of good structure inhibits accumulation of salt in the surface soil effect more significant.
According to the third aspect of the present invention, a kind of above-mentioned beach saline land modification method or beach saline land are additionally provided
Application of the structure-improved in alkaline land improving reparation.
In view of advantage possessed by above-mentioned beach saline land modification method or beach saline land structure-improved, so that it is treated
The beach saline land of reparation has extensive adaptability, and rehabilitation cost is low, engineering applicability is strong, can be effectively improved beach saline land
Soil regime, repairing field in Saline-alkali Field Control has good, wide application prospect.
Combined with specific embodiments below, the invention will be further described.
Embodiment 1
The present embodiment provides a kind of beach saline land modification methods, comprising the following steps:
(a) it ditches in the salt-soda soil soil layer underground to desalination and buries hidden pipe, hidden pipe buried depth is 0.8m, and hidden pipe spacing is 20m,
It is tilted to water outlet direction, hidden pipe pipeline gradient is 0.6 ‰, and one end (end) of hidden pipe water outlet is connected with collector pipe, collection
Conduit pipeline gradient is 1.0 ‰, forms closed drainage layer；
Pipe end of catchmenting is connected with sump, and sump is connected by pipeline with reservoir, and water is equipped on pipeline
Pump；
(b) alkaline land soil that soil depth is 45cm is excavated, the soil dug out is piled up in side vacant lot, smooth soil face
Afterwards, stalk is uniformly spread, the laying depth of stalk is 20cm, and the length of stalk is 2cm, and microbial bacteria is spread fertilizer over the fields on stalk
Agent, the dosage of microbial bacterial agent are 4kg/ mus, and microbial bacterial agent includes the compound of nitrogen-fixing bacteria, phosphobacteria, B. mucilaginocus and VA Mycorrhizal Fungi,
Form separation layer；
(c) calcium superphosphate and cow dung mixture after fermentation are added into the topsoil of accumulation one side, calcium superphosphate
25kg/ mus of dosage, the dosage of cow dung is 100kg/ mus, is uniformly mixed, is layered on above separation layer and flattens, and is laid in soil surface
Drip irrigation pipe, spacing 1m form cultivation layer；
(d) it is planted Suaeda salsa 3 years in cultivation layer, annual harvesting in October.
Using the obtained beach saline land structure-improved of above-mentioned beach saline land modification method, including closed drainage layer,
Separation layer and cultivation layer, closed drainage layer are set to salt-soda soil soil layer underground, and cultivation layer is set to saline and alkaline surface layer, and separation layer is set
It is placed between closed drainage layer and cultivation layer；
Closed drainage layer is mainly laid with by hidden pipe and collector pipe, wherein hidden pipe buried depth is 0.8m, and hidden pipe spacing is
20m is tilted to water outlet direction, and hidden pipe pipeline gradient is 0.6 ‰, and one end (end) of hidden pipe water outlet is connected with collector pipe
It connects, the pipeline gradient that catchments is 1.0 ‰；
Pipe end of catchmenting is connected with sump, and sump is connected by pipeline with reservoir, and water is equipped on pipeline
Pump；
Separation layer is mainly laid with by stalk, and microbial bacterial agent is spread fertilizer over the fields on stalk, wherein the soil layer of separation layer is deep
Degree is 45cm, and the laying depth of stalk is 20cm, and the length of stalk is 2cm, and the dosage of microbial bacterial agent is 4kg/ mus；
It cultivates and is added with calcium superphosphate and organic fertilizer in the soil of layer, and be equipped with drip irrigation pipe, wherein the use of calcium superphosphate
25kg/ mus of amount, the dosage of cow dung are 100kg/ mus, and trickle irrigation tube spacing is 1m.Also kind is implanted with Suaeda salsa on cultivation layer, when plantation
Between 3 years, harvesting in annual October.
After implementing above-mentioned beach saline land modification method or structure-improved, beach saline land is improved the soil, effectively in quick desalination
Inhibit have remarkable result in terms of the accumulation of salt in the surface soil and fresh-water-saving resource, the beach saline land improvement period is obviously shortened, after improvement 3 years
It can be used to general crop-planting.
Embodiment 2
The present embodiment provides a kind of beach saline land modification methods, comprising the following steps:
(a) it ditches in the salt-soda soil soil layer underground to desalination and buries hidden pipe, hidden pipe buried depth is 1.0m, and hidden pipe spacing is 30m,
It is tilted to water outlet direction, hidden pipe pipeline gradient is 0.7 ‰, and one end (end) of hidden pipe water outlet is connected with collector pipe, collection
Conduit pipeline gradient is 1.2 ‰, forms closed drainage layer；
Pipe end of catchmenting is connected with sump, and sump is connected by pipeline with reservoir, and water is equipped on pipeline
Pump；
(b) alkaline land soil that soil depth is 50cm is excavated, the soil dug out is piled up in side vacant lot, smooth soil face
Afterwards, stalk is uniformly spread, the laying depth of stalk is 30cm, and the length of stalk is 1cm, and microbial bacteria is spread fertilizer over the fields on stalk
Agent, the dosage of microbial bacterial agent are 5kg/ mus, and microbial bacterial agent includes the compound of nitrogen-fixing bacteria, phosphobacteria, B. mucilaginocus and VA Mycorrhizal Fungi,
Form separation layer；
(c) calcium superphosphate and cow dung mixture after fermentation are added into the topsoil of accumulation one side, calcium superphosphate
20kg/ mus of dosage, the dosage of cow dung is 80kg/ mus, is uniformly mixed, is layered on above separation layer and flattens, and is laid in soil surface
Drip irrigation pipe, spacing 2m form cultivation layer；
(d) in cultivation layer plantation salicornia europaeal and saltbush 4 years, annual harvesting in October.
Using the obtained beach saline land structure-improved of above-mentioned beach saline land modification method, including closed drainage layer,
Separation layer and cultivation layer, closed drainage layer are set to salt-soda soil soil layer underground, and cultivation layer is set to saline and alkaline surface layer, and separation layer is set
It is placed between closed drainage layer and cultivation layer；
Closed drainage layer is mainly laid with by hidden pipe and collector pipe, wherein hidden pipe buried depth is 1.0m, and hidden pipe spacing is
30m is tilted to water outlet direction, and hidden pipe pipeline gradient is 0.7 ‰, and one end (end) of hidden pipe water outlet is connected with collector pipe
It connects, the pipeline gradient that catchments is 1.2 ‰；
Pipe end of catchmenting is connected with sump, and sump is connected by pipeline with reservoir, and water is equipped on pipeline
Pump；
Separation layer is mainly laid with by stalk, and microbial bacterial agent is spread fertilizer over the fields on stalk, wherein the soil layer of separation layer is deep
Degree is 50cm, and the laying depth of stalk is 30cm, and the length of stalk is 1cm, and the dosage of microbial bacterial agent is 5kg/ mus；
It cultivates and is added with calcium superphosphate and organic fertilizer in the soil of layer, and be equipped with drip irrigation pipe, wherein the use of calcium superphosphate
20kg/ mus of amount, the dosage of cow dung are 80kg/ mus, and trickle irrigation tube spacing is 2m.Also kind is implanted with salicornia europaeal and saltbush on cultivation layer, plants
It plants the time 4 years, annual harvesting in October.
After implementing above-mentioned beach saline land modification method or structure-improved, beach saline land is improved the soil, effectively in quick desalination
Inhibit have remarkable result in terms of the accumulation of salt in the surface soil and fresh-water-saving resource, the beach saline land improvement period is obviously shortened, after improvement 4 years
It can be used to general crop-planting.
Embodiment 3
The present embodiment provides a kind of beach saline land modification methods, comprising the following steps:
(a) it ditches in the salt-soda soil soil layer underground to desalination and buries hidden pipe, hidden pipe buried depth is 1.5m, and hidden pipe spacing is 40m,
It is tilted to water outlet direction, hidden pipe pipeline gradient is 0.5 ‰, and one end (end) of hidden pipe water outlet is connected with collector pipe, collection
Conduit pipeline gradient is 0.8 ‰, forms closed drainage layer；
Pipe end of catchmenting is connected with sump, and sump is connected by pipeline with reservoir, and water is equipped on pipeline
Pump；
(b) alkaline land soil that soil depth is 40cm is excavated, the soil dug out is piled up in side vacant lot, smooth soil face
Afterwards, stalk is uniformly spread, the laying depth of stalk is 25cm, and the length of stalk is 1.5cm, and microbial bacteria is spread fertilizer over the fields on stalk
Agent, the dosage of microbial bacterial agent are 3kg/ mus, and microbial bacterial agent includes the compound of nitrogen-fixing bacteria, phosphobacteria and photosynthetic bacteria, is formed
Separation layer；
(c) calcium superphosphate and cow dung mixture after fermentation are added into the topsoil of accumulation one side, calcium superphosphate
22kg/ mus of dosage, the dosage of cow dung is 90kg/ mus, is uniformly mixed, is layered on above separation layer and flattens, and is laid in soil surface
Drip irrigation pipe, spacing 1.5m form cultivation layer；
(d) it is planted salt saltbush 5 years in cultivation layer, annual harvesting in October.
Using the obtained beach saline land structure-improved of above-mentioned beach saline land modification method, including closed drainage layer,
Separation layer and cultivation layer, closed drainage layer are set to salt-soda soil soil layer underground, and cultivation layer is set to saline and alkaline surface layer, and separation layer is set
It is placed between closed drainage layer and cultivation layer；
Closed drainage layer is mainly laid with by hidden pipe and collector pipe, wherein hidden pipe buried depth is 1.5m, and hidden pipe spacing is
40m is tilted to water outlet direction, and hidden pipe pipeline gradient is 0.5 ‰, and one end (end) of hidden pipe water outlet is connected with collector pipe
It connects, the pipeline gradient that catchments is 0.8 ‰；
Pipe end of catchmenting is connected with sump, and sump is connected by pipeline with reservoir, and water is equipped on pipeline
Pump；
Separation layer is mainly laid with by stalk, and microbial bacterial agent is spread fertilizer over the fields on stalk, wherein the soil layer of separation layer is deep
Degree is 40cm, and the laying depth of stalk is 25cm, and the length of stalk is 1.5cm, and the dosage of microbial bacterial agent is 3kg/ mus；
It cultivates and is added with calcium superphosphate and organic fertilizer in the soil of layer, and be equipped with drip irrigation pipe, wherein the use of calcium superphosphate
22kg/ mus of amount, the dosage of cow dung are 90kg/ mus, and trickle irrigation tube spacing is 1.5m.Also kind is implanted with saltbush, implantation time 5 on cultivation layer
Year, annual harvesting in October.
After implementing above-mentioned beach saline land modification method or structure-improved, beach saline land is improved the soil, effectively in quick desalination
Inhibit have remarkable result in terms of the accumulation of salt in the surface soil and fresh-water-saving resource, the beach saline land improvement period is obviously shortened, after improvement 5 years
It can be used to general crop-planting.
In conclusion the beach saline land modification method and beach saline land structure-improved are to beach saline land to be repaired
There is extensive adaptability, and rehabilitation cost is low, engineering applicability is strong, the soil regime of beach saline land can be effectively improved, in salt
Reparation field is administered to alkali with good, wide application prospect.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of beach saline land modification method, which comprises the following steps:
(a) in the salt-soda soil soil layer underground trench digging to desalination, hidden pipe and collector pipe is buried, closed drainage layer is formed；
(b) salt-soda soil topsoil is excavated, stalk is laid with and spreads fertilizer over the fields microbial bacterial agent, forms separation layer；
(c) calcium superphosphate and organic fertilizer are added in the topsoil of salt-soda soil, after mixing backfill leveling, and be laid with trickle irrigation
Pipe forms cultivation layer.
2. beach saline land modification method according to claim 1, which is characterized in that in step (a), hidden pipe buried depth is
0.8-1.5m, hidden pipe spacing are 20-40m；
Preferably, in step (a), hidden pipe is tilted to water outlet direction, and collector pipe is connected with one end of hidden pipe water outlet；
Preferably, in step (a), hidden pipe pipeline gradient is 0.5 ‰ -0.7 ‰, and the pipeline gradient that catchments is 0.8 ‰ -1.2 ‰.
3. beach saline land modification method according to claim 1, which is characterized in that in step (b), by saline and alkaline surface layer
Dig 40-50cm under soil, by the soil dug out be piled up in side vacant lot, it is smooth soil face after, uniformly spread stalk, and spread on stalk
Microbial bacterial agent is applied, separation layer is formed；
Preferably, in step (b), the laying depth of stalk is 20-30cm, and the length of stalk is 1-3cm；
Preferably, in step (b), the dosage of microbial bacterial agent is 3-5kg/ mus；
Preferably, in step (b), microbial bacterial agent includes in nitrogen-fixing bacteria, phosphobacteria, B. mucilaginocus, VA Mycorrhizal Fungi or photosynthetic bacteria
Any one or at least two it is compound.
4. beach saline land modification method according to claim 1, which is characterized in that in step (c), the use of calcium superphosphate
Amount is 20-25kg/ mus, and the dosage of organic fertilizer is 80-100kg/ mus；
Preferably, in step (c), the laying spacing of drip irrigation pipe is 1-2m.
5. beach saline land modification method according to any one of claims 1-4, which is characterized in that further include step
(d), salt plant is inhaled in plantation in the topsoil of salt-soda soil；
Preferably, in step (d), it is described inhale salt plant include in Suaeda salsa, salicornia europaeal or saltbush any one or extremely
Few two kinds of combination.
6. beach saline land modification method according to any one of claims 1-4, which is characterized in that in step (a), collection
One end of water pipe is connected with sump, and sump is connected by pipeline with reservoir, the seepage flow being discharged from hidden pipe via
Collector pipe and sump are emitted into reservoir.
7. the beach saline land improvement knot obtained using beach saline land modification method as claimed in any one of claims 1 to 6
Structure, which is characterized in that including closed drainage layer, separation layer and cultivation layer, the closed drainage layer is with being set to salt-soda soil soil layer
Under, the cultivation layer is set to saline and alkaline surface layer, and the separation layer is set between the closed drainage layer and the cultivation layer；
The closed drainage layer is mainly laid with by hidden pipe and collector pipe；
The separation layer is mainly laid with by stalk, and microbial bacterial agent is spread fertilizer over the fields on stalk；
It is added with calcium superphosphate and organic fertilizer in the soil of the cultivation layer, and is equipped with drip irrigation pipe.
8. beach saline land structure-improved according to claim 7, which is characterized in that further include sump and reservoir；
One end of the collector pipe is connected with sump, and sump is connected by pipeline with reservoir, is discharged from hidden pipe
Seepage flow be emitted into reservoir via collector pipe and sump.
9. beach saline land structure-improved according to claim 7 or 8, which is characterized in that the hidden pipe buried depth is 0.8-
1.5m, hidden pipe spacing are 20-40m；
And/or the hidden pipe pipeline gradient is 0.5 ‰ -0.7 ‰, the pipeline gradient that catchments is 0.8 ‰ -1.2 ‰；
And/or the soil depth of the separation layer is 40-50cm；
And/or the laying spacing of drip irrigation pipe is 1-2m in the cultivation layer.
10. described in beach saline land modification method as claimed in any one of claims 1 to 6 or claim 7-9 any one
Application of the beach saline land structure-improved in alkaline land improving reparation.
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| CN113317098A (en) * | 2021-04-02 | 2021-08-31 | 深圳市华美绿生态环境集团有限公司 | Hierarchical greening method suitable for saline-alkali soil |
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| CN113317098A (en) * | 2021-04-02 | 2021-08-31 | 深圳市华美绿生态环境集团有限公司 | Hierarchical greening method suitable for saline-alkali soil |
| CN113748771A (en) * | 2021-08-19 | 2021-12-07 | 浙江安诺农业科技有限公司 | Efficient saline-alkali soil improvement method capable of improving and planting crops simultaneously |
| CN114568178A (en) * | 2022-04-06 | 2022-06-03 | 新疆农业大学 | Desalting and alkali removing greenhouse for desert and manufacturing method thereof |
| CN114982408A (en) * | 2022-05-18 | 2022-09-02 | 吉林大学 | Comprehensive method for improving coastal saline-alkali soil |
| CN115136764A (en) * | 2022-08-10 | 2022-10-04 | 山东乾舜水土治理科技有限公司 | Concealed pipe reverse salt elimination method for saline-alkali soil improvement |
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| CN116368983A (en) * | 2023-03-29 | 2023-07-04 | 自然资源部第三海洋研究所 | Coastal sand dune repairing and maintaining method |
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