CN107182341A - A kind of beach saline land modification method - Google Patents

A kind of beach saline land modification method Download PDF

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Publication number
CN107182341A
CN107182341A CN201710601633.1A CN201710601633A CN107182341A CN 107182341 A CN107182341 A CN 107182341A CN 201710601633 A CN201710601633 A CN 201710601633A CN 107182341 A CN107182341 A CN 107182341A
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soil
salt
modification method
saline
bio
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杨妃妃
朱建德
肖建茜
侯昌国
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Zhejiang Derun Municipal Garden Co Ltd
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Zhejiang Derun Municipal Garden Co Ltd
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Priority to CN201710601633.1A priority Critical patent/CN107182341A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01BSOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B79/00Methods for working soil
    • A01B79/02Methods for working soil combined with other agricultural processing, e.g. fertilising, planting

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Soil Conditioners And Soil-Stabilizing Materials (AREA)
  • Fertilizers (AREA)

Abstract

The present invention relates to a kind of modification method of beach saline land, belong to salt affected soil improving technology field.Comprise the following steps:(1)Build gutter;(2)Plowed soils;(3)Elution and salt discharge;(4)Repeat step(3)Saline and alkaline is set to be reduced to prescribed limit;(5)Resin is irrigated in salt-soda soil, anti-salt deposit is formed;(6)Packing material is inserted in gutter bottom;(7)Apply soil conditioner, application of organic fertilizers.The present invention initially sets up drainage system, then plowed soils, and then the soil of scarifying is eluted, and after repeatedly elute, the saline and alkaline of soil is reduced rapidly, meets the growth of general plant;But because elution also takes away the fertile matter in soil simultaneously, soil now is barrenr, and is easier hardened, therefore the present invention has also carried out the operation of compound fertilizer after to Soil leaching, bio-feritlizer is such as applied, to improve the fertility of soil rapidly, is adapted to plant growth.

Description

A kind of beach saline land modification method
Technical field
The present invention relates to a kind of modification method of beach saline land, belong to salt affected soil improving technology field.
Background technology
The soil salinization is to limit the major obstacle that utilizes of coastal region optimization of land resource, with coastal region economy and The fast development of urbanization, agricultural land area is constantly reduced, and improves and oneself has been put on scientific research day using salt-soda soil morning Journey.It has been investigated that, coastal saline-alkali soil salt accumulation in surface soil phenomenon is serious and overall salt content is higher, and soil is in alkalescence.Soil Middle Main Salts composition is sodium chloride and calcium chloride, and salinity is based on chloride and sulfate in topsoil.In 0-40 cm Na in deep soil layer+、Cl-、S04 2-For main salt ion.According to institute's salt content and the number of alkali number, it can also be further divided into Slight alkaline land(0.1%~0.25%), moderate saline-alkali soil(0.1%~0.25%)With it is heavy salinized(0.5%~0.8%).At this In the soil of sample, general plant is difficult to survive.Therefore, this area is in the urgent need to a kind of method in improvement salt-soda soil.
Such as Authorization Notice No. CN102232328B Chinese invention patent, the method and salt in a kind of improvement salt-soda soil are disclosed The implantation methods on alkali ground.The method in the improvement salt-soda soil be first excavate 40-60cm topsoil, then spread barrier film, every From spreading planting soil on film.It is to prevent the planting soil accumulation of salt in the surface soil to spread barrier film.This method principle is simple, but complex operation, puts into This is also very high.Not only need to excavate the substantial amounts of earthwork, in addition it is also necessary to carry out fill backward with substantial amounts of planting soil.In fact, due near The popularization of mechanization of agriculture over year, the operation such as earth excavation, real tillage is popularized very much, but needed in this programme it is a large amount of Planting soil be still relatively difficult.Therefore, although this method effect clearly, but is due to that cost is high, therefore very Difficulty is widely applied.
In the prior art, also useful a large amount of fresh water are rinsed so that the technical scheme of salt affected soil desalination, implementing should Need first to set up drainage system before scheme, preferably to discharge salt solution when rinsing.Such technical scheme, although be not required to The earthwork that planting soil goes fill backward to excavate is purchased, but easily the phenomenon of the accumulation of salt in the surface soil occurs.It is primarily due to level of ground water Rise to infiltrate in the soil after improvement so that the soil after improvement is changed into saline-alkali soil again.Therefore, according to this technology Scheme is accomplished by carrying out the measure of the accumulation of salt in the surface soil.
In the prior art, the smaller technical scheme of financial cost is directly to be improved using soil conditioner.Soil changes Good dose is typically natural high poly- liquid, organic improving matrix or organic waste, such as pyrolkigneous liquid, plant charcoal, garden waste.But This scheme is only applicable to slight alkaline land, and improved effect is also poor, and the plant of some Salt And Alkali Tolerances can only be planted after improvement.
And it is more inexpensive, it is adaptable to various salt-soda soils, and with the alkaline land improving side of good anti-accumulation of salt in the surface soil effect The problem of case is still this area urgent need to resolve.
The content of the invention
The invention solves the problems that above mentioned problem, so as to provide a kind of modification method in salt-soda soil.
Technical proposal that the invention solves the above-mentioned problems is as follows:
A kind of native modification method of coastal saline-alkali, comprises the following steps:
(1)Build gutter:Gutter is excavated in salt-soda soil, drainage system is set up;Gutter cutting depth is not less than 50cm;
(2)Plowed soils:Salt-soda soil is turned over;Ploughed depth is not less than 20cm;
(3)Elution and salt discharge:The salt affected soil for ploughing pine is eluted and salt discharge with water or weakly acidic solution, while finely tuning soil The acid-base value of earth, leacheate is discharged from the drainage system, takes away part salinity in salt affected soil;
(4)Repeat step(3), saline and alkaline is reduced to less than 0.3%;
(5)Go deep into resin is irrigated in salt-soda soil below the 20cm of salt-soda soil ground, to form anti-salt deposit;
(6)Packing material is inserted in the gutter bottom, dividing plate is set up above packing material, to form covered conduit, in covered conduit Dividing plate above backfill soil, formed fill stratum, the layer overlay bio-feritlizer above fill stratum, above bio-feritlizer cover Leaf mould, fallen leaves, charcoal, bamboo charcoal, wood chip or bark;The packing material is in river sand, ore in sand form, haydite, zeolite, vermiculite One or more;The setting of the dividing plate is highly less than step(2)In ploughed depth;
(7)Apply soil conditioner in the alkaline land soil eluted, application of organic fertilizers persistently improves soil quality, lifted Soil fertility;One or more of the soil conditioner in sulphur, calcium superphosphate, lime, gypsum.
Preferably, first collecting washing water with a small amount of water wash salt affected soil, pH value is tested, then be according to pH value judgement It is no to need to use weakly acidic solution;If desired, first being eluted with weakly acidic solution, then eluted with clear water;Such as need not be directly with clear Water wash;One or more of the weakly acidic solution in carbon acid solution, acetum, ammoniacal liquor, watery hydrochloric acid, dilute sulfuric acid.
Preferably, also including polyacrylamide in the soil conditioner.
Preferably, the resin is one kind in epoxy resin or polyacrylic resin.
Preferably, the bio-feritlizer is to use organic waste made from primary raw material carries out compost.
Preferably, the preparation method of the bio-feritlizer is specific as follows:Build in a cement pit, pond and be put into filler, fill out Spawn incubation agent is added in material, organic waste is put into, is mixed thoroughly together with filler, environment temperature is maintained 10 DEG C~40 DEG C, Allow its spontaneous fermentation;The Spawn incubation agent is the crushed material of glucose or starch grain seed;The filler be selected from rice bran, One or more in wood chip, bark chip, stalk crushed material.
Preferably, the thickness of packing material is 10-30cm in the covered conduit.
Preferably, also including step(8), arbor is planted in the soil above the covered conduit.
Preferably, also including step(9), the non-covered conduit upper area in the salt-soda soil, set up mulch film to prevent or Mitigate moisture evaporation.
Preferably, the height in the vacant area in the covered conduit above packing material is not less than 10cm.
The invention has the advantages that:
1st, the present invention initially sets up drainage system, then plowed soils, and then the soil of scarifying is eluted, and washing water is from row Water system is discharged, so as to reduce the saline and alkaline of soil;After repeatedly being eluted again, the saline and alkaline of soil is reduced rapidly, meets one As plant growth;But because elution also takes away the fertile matter in soil simultaneously, soil now is barrenr, and compares appearance It is easily hardened, therefore the present invention has also carried out the operation of compound fertilizer after to Soil leaching, such as applies bio-feritlizer, and soil is improved with rapid The fertility of earth, is adapted to plant growth.
2nd, due to being located in coastal region, the soil of improvement is easy to, because the rising of underground sea water infiltrates, cause soil to return Salt;When level of ground water rises, the present invention has first of defensive measure, i.e. covered conduit, is turned over because the setting of covered conduit is highly less than Cultivated salt-soda soil topsoil, when level of ground water rises, is appeared in covered conduit, as long as the moisture appeared in covered conduit passes through first Drainage system is taken away;That is, when the rising of level of ground water is not serious, can be solved by drainage system;
If the 3, level of ground water goes up than more serious, when drainage system cannot get effective draining, therefore the second of the present invention The anti-salt deposit of defence line, i.e. below salt-soda soil ground 30cm perfusion resin formation;Because resin has preferable water proofing property, underground water It is difficult to form the salt-soda soil after improvement through anti-salt deposit and threatens;And generally anti-salt deposit is merely possible to first defensive measure Safety measures;
4th, the present invention can not only be prevented effectively from the soil accumulation of salt in the surface soil after improvement, and be also with very big in itself to improved soil Contribution;The present invention, in favor of elution, then successively further entangles first by soil scarifying using soil conditioner and bio-feritlizer Positive saline and alkaline and increase soil fertility, and improve the anti-hardened ability of soil, the soil after improvement is adapted to the life of various plants The long plant for being not limited solely to some Salt And Alkali Tolerances;
5th, the present invention first backfills the earthwork also above covered conduit and re-lays bio-feritlizer, finally plants arbor;Arbor has after growing up to Have the root system of prosperity, due to being planted in above the dividing plate of covered conduit, for many years after, even if dividing plate rots, and the root system of arbor into Previous still unputrefied dividing plate can be then bypassed when long, so as to maintain the covered conduit using root system as new dividing plate so that covered conduit is able to forever Retain;So that the present invention has permanent anti-accumulation of salt in the surface soil ability.
6th, the present invention additionally uses special bio-feritlizer, so as to compensate for causing soil fertility reduction because of elution Problem, this special bio-feritlizer be by by ferment of filler bed with discard organic matter and addition based on glucide Spawn incubation agent is substrate, maintains certain temperature made from spontaneous fermentation, using this special bio-feritlizer, have Effectively lift soil fertility and the effect of soil hardening will not be made.
7th, mulch film is set up to reduce moisture evaporation above salt-soda soil of the present invention also after improvement, so as to be effectively retained soil In moisture, it is to avoid because capillary effect caused by underground water rise.
8th, in summary, the present invention is a kind of low with improvement cost, it is adaptable to various salt-soda soils, and with good The alkaline land improving scheme of anti-accumulation of salt in the surface soil effect.
Brief description of the drawings
Fig. 1 is the structural representation for the drainage system that the present invention is set up before turning over;
Fig. 2 is the structural representation for the drainage system that the present invention is formed when planting first plant;
In figure, 1- turns over soil, and 2- gutters, the anti-salt deposits of 3-, 4- packing materials, 5- covered conduits, 6- dividing plates, 7- fill stratums, 8- is biological Fertilizer, 9- top layers.
Embodiment
The present invention is further detailed below in conjunction with accompanying drawing.
Present embodiment is only explanation of the invention, is not limitation of the present invention, people in the art Member's any change for being made after the specification of the present invention has been read, as long as in the range of claims, all will be by The protection of Patent Law.
Embodiment one
A kind of native modification method of coastal saline-alkali, comprises the following steps:
(1)Build gutter:As shown in figure 1, excavating gutter 2 in salt-soda soil, drainage system is set up;The cutting depth of gutter 2 is 50cm;
(2)Plowed soils:Salt-soda soil is turned over;As shown in figure 1, the depth for turning over soil 1 is 20cm;
(3)Elution and salt discharge:First with a small amount of water wash salt affected soil, washing water is collected, pH value is tested, then be according to pH value judgement It is no to need to use weakly acidic solution;If desired, first being eluted with weakly acidic solution, then eluted with clear water;Such as need not be directly with clear Water wash;One or more of the weakly acidic solution in carbon acid solution, acetum, ammoniacal liquor, watery hydrochloric acid, dilute sulfuric acid;
(4)Repeat step(3), saline and alkaline is reduced to less than 0.3%;
(5)Go deep into polyacrylic resin is irrigated in salt-soda soil below the 20cm of salt-soda soil ground, to form anti-salt deposit 3, such as Fig. 2 institutes Show;
(6)Packing material 4 is inserted in gutter bottom around salt-soda soil, and dividing plate 6 is set up in the top of packing material 4, to be formed Covered conduit 5, in the top of the dividing plate 6 backfill soil of covered conduit 5, forms fill stratum 7, in the top layer overlay bio-feritlizer 8 of fill stratum 7, Top layer 7 is covered in the top of bio-feritlizer 8, as shown in Figure 2;Top layer 7 can be leaf mould, fallen leaves, charcoal, bamboo charcoal, wood chip or One or more in bark;The packing material 4 is a kind of or many in river sand, ore in sand form, haydite, zeolite, vermiculite Kind;The thickness 10cm of packing material 4;The height in the vacant area above the packing material in the covered conduit is 15cm, i.e. packing material It is 15cm apart from dividing plate 15cm, namely covered conduit depth;
(7)Apply soil conditioner in the alkaline land soil eluted, using bio-feritlizer 8, persistently improve soil quality, carry Rise soil fertility;The soil conditioner is sulphur and plant ash;
(8)Arbor is planted in the soil above the covered conduit;The arbor is fallen leaves Chinese parasol tree;
(9)Non- covered conduit upper area in the salt-soda soil, sets up mulch film to prevent or mitigate moisture evaporation.
Step(6)With(7)Described in bio-feritlizer be use organic waste for primary raw material carry out compost made from. Preparation method is specific as follows:Build and addition Spawn incubation agent in filler, filler is put into a cement pit, pond, put into organic waste Thing, is mixed thoroughly together with filler, and environment temperature is maintained into 20 DEG C~30 DEG C, allows its spontaneous fermentation;The Spawn incubation agent is Portugal The crushed material of grape sugar or starch grain seed;The filler in rice bran, wood chip, bark chip, stalk crushed material one Plant or a variety of.
Embodiment two
A kind of native modification method of coastal saline-alkali, comprises the following steps:
(1)Build gutter:As shown in figure 1, excavating gutter 2 in salt-soda soil, drainage system is set up;The cutting depth of gutter 2 is 60cm;
(2)Plowed soils:Salt-soda soil is turned over;As shown in figure 1, the depth for turning over soil 1 is 30cm;
(3)Elution and salt discharge:First with a small amount of water wash salt affected soil, washing water is collected, pH value is tested, then be according to pH value judgement It is no to need to use weakly acidic solution;If desired, first being eluted with weakly acidic solution, then eluted with clear water;Such as need not be directly with clear Water wash;One or more of the weakly acidic solution in carbon acid solution, acetum, ammoniacal liquor, watery hydrochloric acid, dilute sulfuric acid;
(4)Repeat step(3), saline and alkaline is reduced to less than 0.3%;
(5)Go deep into polyacrylic resin is irrigated in salt-soda soil below the 30cm of salt-soda soil ground, to form anti-salt deposit 3, such as Fig. 2 institutes Show;
(6)Packing material 4 is inserted in gutter bottom around salt-soda soil, and dividing plate 6 is set up in the top of packing material 4, to be formed Covered conduit 5, in the top of the dividing plate 6 backfill soil of covered conduit 5, forms fill stratum 7, in the top layer overlay bio-feritlizer 8 of fill stratum 7, Top layer 7 is covered in the top of bio-feritlizer 8, as shown in Figure 2;Top layer 7 can be leaf mould, fallen leaves, charcoal, bamboo charcoal, wood chip or One or more in bark;The packing material 4 is a kind of or many in river sand, ore in sand form, haydite, zeolite, vermiculite Kind;The thickness 15cm of packing material 4;The height in the vacant area above the packing material in the covered conduit is 10cm, i.e. packing material It is 10cm apart from dividing plate 10cm, namely covered conduit depth;
(7)Apply soil conditioner in the alkaline land soil eluted, using bio-feritlizer 8, persistently improve soil quality, carry Rise soil fertility;One or more of the soil conditioner in sulphur, calcium superphosphate, lime, gypsum, and the soil Also include polyacrylamide in earth conditioning agent;
(8)Arbor is planted in the soil above the covered conduit;
(9)Non- covered conduit upper area in the salt-soda soil, sets up mulch film to prevent or mitigate moisture evaporation.
Step(6)With(7)Described in bio-feritlizer be use organic waste for primary raw material carry out compost made from. Preparation method is specific as follows:Build and addition Spawn incubation agent in filler, filler is put into a cement pit, pond, put into organic waste Thing, is mixed thoroughly together with filler, and environment temperature is maintained into 20 DEG C~30 DEG C, allows its spontaneous fermentation;The Spawn incubation agent is Portugal The crushed material of grape sugar or starch grain seed;The filler in rice bran, wood chip, bark chip, stalk crushed material one Plant or a variety of.
Embodiment three
A kind of native modification method of coastal saline-alkali, comprises the following steps:
(1)Build gutter:As shown in figure 1, excavating gutter 2 in salt-soda soil, drainage system is set up;The cutting depth of gutter 2 is 80cm;
(2)Plowed soils:Salt-soda soil is turned over;As shown in figure 1, the depth for turning over soil 1 is 35cm;
(3)Elution and salt discharge:First with a small amount of water wash salt affected soil, washing water is collected, pH value is tested, then be according to pH value judgement It is no to need to use weakly acidic solution;If desired, first being eluted with weakly acidic solution, then eluted with clear water;Such as need not be directly with clear Water wash;One or more of the weakly acidic solution in carbon acid solution, acetum, ammoniacal liquor, watery hydrochloric acid, dilute sulfuric acid;
(4)Repeat step(3), saline and alkaline is reduced to less than 0.3%;
(5)Go deep into polyacrylic resin is irrigated in salt-soda soil below the 35cm of salt-soda soil ground, to form anti-salt deposit 3, such as Fig. 2 institutes Show;
(6)Packing material 4 is inserted in gutter bottom around salt-soda soil, and dividing plate 6 is set up in the top of packing material 4, to be formed Covered conduit 5, in the top of the dividing plate 6 backfill soil of covered conduit 5, forms fill stratum 7, in the top layer overlay bio-feritlizer 8 of fill stratum 7, Top layer 7 is covered in the top of bio-feritlizer 8, as shown in Figure 2;Top layer 7 can be leaf mould, fallen leaves, charcoal, bamboo charcoal, wood chip or One or more in bark;The packing material 4 is a kind of or many in river sand, ore in sand form, haydite, zeolite, vermiculite Kind;The thickness 20cm of packing material 4;The height in the vacant area above the packing material in the covered conduit is 20cm, i.e. packing material It is 20cm apart from dividing plate 20cm, namely covered conduit depth;
(7)Apply soil conditioner in the alkaline land soil eluted, using bio-feritlizer 8, persistently improve soil quality, carry Rise soil fertility;The soil conditioner is selected from calcium superphosphate and polyacrylamide;
(8)Arbor is planted in the soil above the covered conduit;The arbor is Chinese scholartree;
(9)Non- covered conduit upper area in the salt-soda soil, sets up mulch film to prevent or mitigate moisture evaporation.
Step(6)With(7)Described in bio-feritlizer be use organic waste for primary raw material carry out compost made from. Preparation method is specific as follows:Build and addition Spawn incubation agent in filler, filler is put into a cement pit, pond, put into organic waste Thing, is mixed thoroughly together with filler, and environment temperature is maintained into 20 DEG C~30 DEG C, allows its spontaneous fermentation;The Spawn incubation agent is Portugal The crushed material of grape sugar or starch grain seed;The filler in rice bran, wood chip, bark chip, stalk crushed material one Plant or a variety of.
Example IV
A kind of native modification method of coastal saline-alkali, comprises the following steps:
(1)Build gutter:As shown in figure 1, excavating gutter 2 in salt-soda soil, drainage system is set up;The cutting depth of gutter 2 is 100cm;
(2)Plowed soils:Salt-soda soil is turned over;As shown in figure 1, the depth for turning over soil 1 is 40cm;
(3)Elution and salt discharge:First with a small amount of water wash salt affected soil, washing water is collected, pH value is tested, then be according to pH value judgement It is no to need to use weakly acidic solution;If desired, first being eluted with weakly acidic solution, then eluted with clear water;Such as need not be directly with clear Water wash;One or more of the weakly acidic solution in carbon acid solution, acetum, ammoniacal liquor, watery hydrochloric acid, dilute sulfuric acid;
(4)Repeat step(3), saline and alkaline is reduced to less than 0.3%;
(5)Go deep into polyacrylic resin is irrigated in salt-soda soil below the 40cm of salt-soda soil ground, to form anti-salt deposit 3, such as Fig. 2 institutes Show;
(6)Packing material 4 is inserted in gutter bottom around salt-soda soil, and dividing plate 6 is set up in the top of packing material 4, to be formed Covered conduit 5, in the top of the dividing plate 6 backfill soil of covered conduit 5, forms fill stratum 7, in the top layer overlay bio-feritlizer 8 of fill stratum 7, Top layer 7 is covered in the top of bio-feritlizer 8, as shown in Figure 2;Top layer 7 can be leaf mould, fallen leaves, charcoal, bamboo charcoal, wood chip or One or more in bark;The packing material 4 is a kind of or many in river sand, ore in sand form, haydite, zeolite, vermiculite Kind;The thickness 25cm of packing material 4;The height in the vacant area above the packing material in the covered conduit is 25cm, i.e. packing material It is 25cm apart from dividing plate 25cm, namely covered conduit depth;
(7)Apply soil conditioner in the alkaline land soil eluted, using bio-feritlizer 8, persistently improve soil quality, carry Rise soil fertility;The soil conditioner, which is selected from sulphur and lime, and the soil conditioner, also includes polyacrylamide Amine;Sulphur and lime are first applied, then using polyacrylamide;Finally poured with appropriate amount of water;
(8)Arbor is planted in the soil above the covered conduit;The arbor is fallen leaves Chinese parasol tree;
(9)Non- covered conduit upper area in the salt-soda soil, sets up mulch film to prevent or mitigate moisture evaporation.
Step(6)With(7)Described in bio-feritlizer be use organic waste for primary raw material carry out compost made from. Preparation method is specific as follows:Build and addition Spawn incubation agent in filler, filler is put into a cement pit, pond, put into organic waste Thing, is mixed thoroughly together with filler, and environment temperature is maintained into 20 DEG C~30 DEG C, allows its spontaneous fermentation;The Spawn incubation agent is Portugal The crushed material of grape sugar or starch grain seed;The filler in rice bran, wood chip, bark chip, stalk crushed material one Plant or a variety of.
Embodiment five
A kind of native modification method of coastal saline-alkali, comprises the following steps:
(1)Build gutter:As shown in figure 1, excavating gutter 2 in salt-soda soil, drainage system is set up;The cutting depth of gutter 2 is 100cm;
(2)Plowed soils:Salt-soda soil is turned over;As shown in figure 1, the depth for turning over soil 1 is 40cm;
(3)Elution and salt discharge:First with a small amount of water wash salt affected soil, washing water is collected, pH value is tested, then be according to pH value judgement It is no to need to use weakly acidic solution;If desired, first being eluted with weakly acidic solution, then eluted with clear water;Such as need not be directly with clear Water wash;One or more of the weakly acidic solution in carbon acid solution, acetum, ammoniacal liquor, watery hydrochloric acid, dilute sulfuric acid;
(4)Repeat step(3), saline and alkaline is reduced to less than 0.3%;
(5)Go deep into polyacrylic resin is irrigated in salt-soda soil below the 40cm of salt-soda soil ground, to form anti-salt deposit 3, such as Fig. 2 institutes Show;
(6)Packing material 4 is inserted in gutter bottom around salt-soda soil, and dividing plate 6 is set up in the top of packing material 4, to be formed Covered conduit 5, in the top of the dividing plate 6 backfill soil of covered conduit 5, forms fill stratum 7, in the top layer overlay bio-feritlizer 8 of fill stratum 7, Top layer 7 is covered in the top of bio-feritlizer 8, as shown in Figure 2;Top layer 7 can be leaf mould, fallen leaves, charcoal, bamboo charcoal, wood chip or One or more in bark;The packing material 4 is selected from river sand;The thickness 30cm of packing material 4;Filling in the covered conduit The height in the vacant area above material is that 25cm, i.e. packing material are 25cm apart from dividing plate 25cm, namely covered conduit depth;
(7)Apply soil conditioner in the alkaline land soil eluted, using bio-feritlizer 8, persistently improve soil quality, carry Rise soil fertility;The soil conditioner is selected from sulphur and polyacrylamide, first using sulphur, then using polyacrylamide;
(8)Arbor is planted in the soil above the covered conduit;The arbor is southern metasequoia;
(9)Non- covered conduit upper area in the salt-soda soil, sets up mulch film to prevent or mitigate moisture evaporation.
Step(6)With(7)Described in bio-feritlizer be use organic waste for primary raw material carry out compost made from. Preparation method is specific as follows:Build and addition Spawn incubation agent in filler, filler is put into a cement pit, pond, put into organic waste Thing, is mixed thoroughly together with filler, and environment temperature is maintained into 20 DEG C~30 DEG C, allows its spontaneous fermentation;The Spawn incubation agent is Portugal The crushed material of grape sugar or starch grain seed;The filler in rice bran, wood chip, bark chip, stalk crushed material one Plant or a variety of.

Claims (10)

1. a kind of native modification method of coastal saline-alkali, comprises the following steps:
(1)Build gutter:Gutter is excavated in salt-soda soil, drainage system is set up;Gutter cutting depth is not less than 50cm;
(2)Plowed soils:Salt-soda soil is turned over;Ploughed depth is not less than 20cm;
(3)Elution and salt discharge:The salt affected soil for ploughing pine is eluted and salt discharge with water or weakly acidic solution, while finely tuning soil The acid-base value of earth, leacheate is discharged from the drainage system, takes away part salinity in salt affected soil;
(4)Repeat step(3), saline and alkaline is reduced to less than 0.3%;
(5)Go deep into resin is irrigated in salt-soda soil below the 20cm of salt-soda soil ground, to form anti-salt deposit;
(6)Packing material is inserted in gutter bottom around salt-soda soil, and dividing plate is set up above packing material, dark to be formed Ditch, backfills soil above the dividing plate of covered conduit, forms fill stratum, the layer overlay bio-feritlizer above fill stratum, in bio-fertilizer Material top covering leaf mould, fallen leaves, charcoal, bamboo charcoal, wood chip or bark;The packing material be selected from river sand, ore in sand form, haydite, One or more in zeolite, vermiculite;The setting of the dividing plate is highly less than step(2)In ploughed depth;
(7)Apply soil conditioner in the alkaline land soil eluted, using bio-feritlizer, persistently improve soil quality, carry Rise soil fertility;One or more of the soil conditioner in sulphur, calcium superphosphate, lime, gypsum.
2. the native modification method of a kind of coastal saline-alkali according to claim 1, it is characterised in that:It is first saline and alkaline with a small amount of water wash Soil, collects washing water, tests pH value, then judge whether to need to use weakly acidic solution according to pH value;If desired, first using weak acid Property solution elution, then eluted with clear water;Directly it need not such as be eluted with clear water;The weakly acidic solution is selected from carbon acid solution, vinegar One or more in acid solution, ammoniacal liquor, watery hydrochloric acid, dilute sulfuric acid.
3. the native modification method of a kind of coastal saline-alkali according to claim 1, it is characterised in that:In the soil conditioner also Include polyacrylamide.
4. the native modification method of a kind of coastal saline-alkali according to claim 1, it is characterised in that:The resin is epoxy resin Or one kind in polyacrylic resin.
5. the native modification method of a kind of coastal saline-alkali according to claim 1, it is characterised in that:The bio-feritlizer is to use Organic waste is that primary raw material is carried out made from compost.
6. the native modification method of a kind of coastal saline-alkali according to claim 5, it is characterised in that:The preparation of the bio-feritlizer Method is specific as follows:Build and addition Spawn incubation agent in filler, filler is put into a cement pit, pond, put into organic waste, with Filler is mixed thoroughly together, and environment temperature is maintained into 10 DEG C~40 DEG C, allows its spontaneous fermentation;The Spawn incubation agent be glucose or The crushed material of starch grain seed;The one kind or many of the filler in rice bran, wood chip, bark chip, stalk crushed material Kind.
7. the native modification method of a kind of coastal saline-alkali according to claim 1, it is characterised in that:Packing material in the covered conduit Thickness be 10-30cm.
8. the native modification method of a kind of coastal saline-alkali according to claim 1, it is characterised in that:Also include step(8), institute State in the soil above covered conduit and plant arbor.
9. the native modification method of a kind of coastal saline-alkali according to claim 1, it is characterised in that:Also include step(9), institute The non-covered conduit upper area in salt-soda soil is stated, sets up mulch film to prevent or mitigate moisture evaporation.
10. the native modification method of a kind of coastal saline-alkali according to claim 1, it is characterised in that:Filling in the covered conduit The height in the vacant area above material is not less than 10cm.
CN201710601633.1A 2017-07-21 2017-07-21 A kind of beach saline land modification method Pending CN107182341A (en)

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CN109874436A (en) * 2019-02-26 2019-06-14 湖南杂交水稻研究中心 A method of alkaline land soil is improved using Forest Litter
CN112042306A (en) * 2020-09-21 2020-12-08 兰州资源环境职业技术学院 Saline-alkali soil adjusting device and construction method thereof
CN112616350A (en) * 2020-12-04 2021-04-09 山东大学 Method for preventing salt return of saline-alkali soil by using salt isolation layer
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CN114467398A (en) * 2021-12-23 2022-05-13 南京农业大学 Improvement method and application of coastal viscous saline-alkali soil
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CN107896766A (en) * 2017-10-09 2018-04-13 山东胜伟农业科技有限公司 A kind of salt-soda soil yellow peach and yellowhairy strawberry herb intercropping plant technology
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CN112616350A (en) * 2020-12-04 2021-04-09 山东大学 Method for preventing salt return of saline-alkali soil by using salt isolation layer
CN112970367A (en) * 2021-02-04 2021-06-18 福建荣冠环境建设集团有限公司 Technology for restoring saline-alkali soil by adopting ecological vegetation based on sponge city principle
CN114467398A (en) * 2021-12-23 2022-05-13 南京农业大学 Improvement method and application of coastal viscous saline-alkali soil
CN115067016A (en) * 2022-07-14 2022-09-20 塔里木大学 Method for extracting and separating saline-alkali soil and improving soil
CN115067016B (en) * 2022-07-14 2023-07-18 塔里木大学 Method for extracting and separating saline-alkali soil and improving soil

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