CN104206066A - Soil improvement method for saline-alkali soil - Google Patents
Soil improvement method for saline-alkali soil Download PDFInfo
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- CN104206066A CN104206066A CN201410419814.9A CN201410419814A CN104206066A CN 104206066 A CN104206066 A CN 104206066A CN 201410419814 A CN201410419814 A CN 201410419814A CN 104206066 A CN104206066 A CN 104206066A
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Abstract
The invention relates to a soil improvement method for saline-alkali soil. The method is characterized by comprising the following processing steps: bulldozing, i.e. shoving soil on the surface of the saline-alkali soil which needs to be improved; pipe laying, i.e. laying leaky pipeline systems on the ground of which the surface soil is shoved; stone laying, i.e. laying a broken stone layer in gaps between the pipeline systems; fertilizer covering, i.e. covering an organic fertilizer layer on the cobblestone layer; soil leveling, i.e. raking the surface soil in the bulldozing step broken and then covering the organic fertilizer layer with the broken surface soil; alkali washing, i.e. wetting the surface soil with water or aqueous solution to wash out excessive saline-alkali substances in the soil. The broken stone layer in the soil improvement method cuts off salt conveying from soil capillary water to the ground surface, takes a good salt accumulation prevention effect after washing out alkali and is beneficial to durability and stability of improving the saline-alkali soil; moreover, microbiological degradation of the organic fertilizer also can reduce alkalinity of the soil; the method can be used for comprehensively treating the saline-alkali soil.
Description
Technical field
The present invention relates to soil melioration field, particularly a kind of saline-alkali soil improvement method.
Background technology
Saline land is a kind of salt aggregation, refer to that salinity contained inside soil has influence on the normal growth of crop, according to UNESCO and food and agricultural organization's incomplete statistics, the area in saline land, the whole world is 9.5438 hundred million hectares, and wherein China is 9,913 ten thousand hectares.The formation of China's alkaline earth and alkali-affected soil, major part is accumulative relevant with Carbonates In Soil, and thus basicity is general higher, and serious salt affected soil regional plant almost can not be survived.At present, the domestic processing method to saline land generally comprises salt discharge method and pressure salt method etc., but they all also exist weak point, and such as, salt discharge method by using a large amount of fresh water to rinse for a long time saline land, the salt content on surface, saline land is reduced.Pressure salt method utilizes natural precipitation or artificial flood to irrigate, make the infiltration downwards such as the saline and alkaline hole along soil of part, crack, by the salinity of topsoil with water-band to bottom, although said method can make the salt content on top layer, saline land reduce, but it is permanent to keep not, and needs a large amount of water sources, therefore, need urgently to develop a kind of water consumption little and can be permanently effective the method in improvement saline land, saline land can be made to be suitable for the planting technique in gardens.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of saline-alkali soil improvement method.
Technical problem to be solved by this invention is achieved by the following technical programs:
A kind of saline-alkali soil improvement method, comprises following treatment step:
Bulldoze, described soil-shifting is that the saline land surface soil that need improve is pushed open;
Pipe laying, described pipe laying is the pipe-line system of laying seepage on the ground pushing topsoil;
Paving stone, described paving stone is lay a metalling in the gap of pipe-line system;
Lid is fertile, and described lid is fertile in cover a fertilizer bed of material on cobblestone layer;
Grading, described grading is then be covered on fertilizer layer by broken for the table soil rake in soil-shifting step;
Soda, described soda is with water or solution immersion topsoil, salt alkaloid substance too much in wash-out soil.
Preferably, described metalling is the cobblestone layer of particle diameter 0.5-3cm, and rubble thickness is 3-10cm.
Preferably, described organic manure layer thickness is 3-10cm.
Preferably, described pipe-line system be pipeline transverse and longitudinal interlock be communicated with latticed, wherein the area of arbitrary little lattice is 0.5-1.5 square metre, this pipe-line system at least arrange one can inject effusion be opened on earth's surface, pipe diameter is 3-7cm, and tube wall having aperture is the weepage holes that 0.5-2mm does not wait.
Preferably, the table soil thickness on the described fertilizer bed of material is greater than 30cm.
Further, described soda step can be implemented 1-4 time according to salinization of soil degree, within 1-3 days, implements soda next time again after 3-5 days his-and-hers watches soil implements the broken process of rake after each soda.
Preferably, described effusion is the aqueous solution that dried yeast and water quality ratio are 1:2000-5000.
Preferably, can harrow the weathered coal mixing mistake 50 mesh sieve containing humic acid more than 60% in broken table soil in described grading step, mixed ratio is every square metre of 0.5-3 kilogram.
Preferably, the soil after soda process can put into earthworm loam, and supply volume is every square metre and is not less than 20.
The present invention has following beneficial effect:
1. metalling of the present invention blocks soil capillary water and carries salinity to earth's surface, serves the effect well preventing the accumulation of salt in the surface soil, is conducive to persistence and the steadiness of salt affected soil improvement.
2. the fertilizer bed of material of the present invention is laid on metalling, and fertilizer fertilizer forms humus through microbial decomposition, conversion, can improve the buffer capacity of soil, and can form sodium humate with sodium carbonate effect, reduces surface soil alkalinity.Along with the seepage, moistening of pipe-line system, decomposition rate is accelerated, and inserts dried yeast in effusion, accelerated decomposition speed.
3. the present invention mixes the weathered coal of mistake 50 mesh sieve containing humic acid more than 60% in table soil, and serve good effect for the neutralization that topsoil is saline and alkaline, and add the loam of earthworm, the improvement effect for topsoil salinization of soil is consolidated further.
Accompanying drawing explanation
Fig. 1 is the cross-sectional view that improvement method of the present invention is implemented.
Embodiment
Below in conjunction with accompanying drawing 1 and embodiment, the present invention will be described in detail.
The present embodiment have chosen the typical beach saline land in two pieces, coastal Huidong County of Huizhou City, is labeled as A, B, and wherein A area is 12 mu, is land use for greening in a development of real estate Sea View Room community; B area is 15 mu, and be a typical coastal high salinity wasteland, almost not even a blade of grass grows.Soil data is recorded as A, B in following table 1 before experiment.
A ground, successively through bulldozing, pipe laying, paving stone, lid is fertile, grading, soda etc. six step, wherein metalling 1 thickness is about 7cm, organic manure layer thickness is about 6cm, pipe-line system 4 is laid in little square lattice, each square net area is 1 square metre, inside pipe wall diameter 5cm, effusion is the aqueous solution that dried yeast and water quality ratio are 1:3000, table soil 3 thick about 45cm, weathered coal participates in table soil according to the amount of every square of 1.5Kg, twice, soda altogether, after soda, 3 days his-and-hers watches soil 3 implements the broken process of rake for the first time, soda is next time implemented after 2 days, on the soil of process, earthworm is thrown according to the quantity of every square about 50 after twice soda.Survey data after one week and obtain A1, data measured A2 after four months, record case is as following table 1.
B ground is successively through bulldozing, pipe laying, paving stone, lid is fertile, grading, soda etc. six step, wherein metalling 1 thickness is about 10cm, organic manure layer thickness is about 7cm, pipe-line system 4 is laid in little square lattice, each square net area is 1 square metre, inside pipe wall diameter 5cm, effusion is the aqueous solution that dried yeast and water quality ratio are 1:3500, table soil 3 thick about 40cm, weathered coal participates in table soil according to the amount of every square of 1Kg, soda 3 times altogether, after soda, 3 days his-and-hers watches soil 3 implements the broken process of rake for the first time, second time soda is implemented after 2 days, through 4 days, his-and-hers watches soil 3 is implemented again to harrow broken process, again through 3 days, his-and-hers watches soil 3 implements third time soda process.On the soil of process, earthworm is thrown according to the quantity of every square about 60 after 3 soda.Survey data after one week and obtain B1, data measured B2 after four months, record case is as following table 1.
Table 1:(salt ion content %)
| ? | PH | Total salt (%) | HCO 3 - | Cl - | SO 4 2- | Ca 2+ | Mg 2+ | K + | Na + |
| A | 8.98 | 0.42 | 0.0352 | 0.0447 | 0.1529 | 0.0334 | 0.0125 | 0.0193 | 0.0877 |
| B | 8.57 | 0.36 | 0.0111 | 0.0047 | 0.1736 | 0.0556 | 0.0156 | 0.0185 | 0.0563 |
| A1 | 8.25 | 0.33 | 0.0177 | 0.0375 | 0.1181 | 0.0246 | 0.0109 | 0.079 | 0.0417 |
| B1 | 7.93 | 0.31 | 0.0102 | 0.0051 | 0.1327 | 0.0342 | 0.0112 | 0.069 | 0.0315 |
| A2 | 7.87 | 0.28 | 0.0145 | 0.0367 | 0.1140 | 0.0207 | 0.0092 | 0.057 | 0.0254 |
| B2 | 7.81 | 0.26 | 0.0093 | 0.0062 | 0.1121 | 0.0302 | 0.0101 | 0.048 | 0.0213 |
After treated four months, afforestation cultivation is implemented to the saline land after two pieces of process, plants and be implanted with the local common garden plantses such as frangipanis, common crapemyrtle flower, common alstonia, fujian tea, pittosporum tobira, all to survive, through months of observations, there is the withered and yellow phenomenon such as to come off of dead and a large amount of blade.
The above embodiment only have expressed embodiments of the present invention; it describes comparatively concrete and detailed; but therefore can not be interpreted as the restriction to the scope of the claims of the present invention; in every case the technical scheme adopting the form of equivalent replacement or equivalent transformation to obtain, all should drop within protection scope of the present invention.
Claims (9)
1. a saline-alkali soil improvement method, is characterized in that comprising following treatment step:
Bulldoze, described soil-shifting is that the saline land surface soil that need improve is pushed open;
Pipe laying, described pipe laying is the pipe-line system (4) of laying seepage on the ground pushing topsoil;
Paving stone, described paving stone is lay a metalling (1) in the gap of pipe-line system;
Lid is fertile, and described lid is fertile in cover a fertilizer bed of material (2) on cobblestone layer;
Grading, described grading is harrowed by the table soil (3) in soil-shifting step to be brokenly then covered on fertilizer layer;
Soda, described soda is with water or solution immersion topsoil, salt alkaloid substance too much in wash-out soil.
2. a kind of saline-alkali soil improvement method according to claim 1, is characterized in that: the cobblestone layer that described metalling (1) is particle diameter 0.5-3cm, rubble thickness is 3-10cm.
3. a kind of saline-alkali soil improvement method according to claim 1, is characterized in that: the described fertilizer bed of material (2) thickness is 3-10cm.
4. a kind of saline-alkali soil improvement method according to claim 1, it is characterized in that: described pipe-line system (4) for pipeline transverse and longitudinal interlock be communicated with latticed, wherein the area of arbitrary little lattice is 0.5-1.5 square metre, this pipe-line system at least arrange one can inject effusion be opened on earth's surface, pipe diameter is 3-7cm, and tube wall having aperture is the weepage holes that 0.5-2mm does not wait.
5. a kind of saline-alkali soil improvement method according to claim 1, is characterized in that: table soil (3) thickness on the described fertilizer bed of material (2) is greater than 30cm.
6. a kind of saline-alkali soil improvement method according to claim 1, it is characterized in that: described soda step can be implemented 1-4 time according to salinization of soil degree, after each soda, after the broken process of 3-5 days his-and-hers watches soil (3) enforcement rakes, within 1-3 days, implement soda next time again.
7. a kind of saline-alkali soil improvement method according to claim 4, is characterized in that: described effusion is the aqueous solution that dried yeast and water quality ratio are 1:2000-5000.
8. a kind of saline-alkali soil improvement method according to claim 1, it is characterized in that: can at the inner weathered coal mixing mistake 50 mesh sieve containing humic acid more than 60% of the broken table soil (3) of rake in described grading step, mixed ratio is every square metre of 0.5-3 kilogram.
9. a kind of saline-alkali soil improvement method according to claim 1, is characterized in that: the soil after soda process can put into earthworm loam, and supply volume is every square metre and is not less than 20.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104885611A (en) * | 2015-06-19 | 2015-09-09 | 青岛袁策生物科技有限公司 | Method for improving soil saline alkali |
| CN105359663A (en) * | 2015-11-30 | 2016-03-02 | 天津吉天环境科技发展有限公司 | Improvement method for soil of saline and alkaline land |
| CN105814996A (en) * | 2015-11-13 | 2016-08-03 | 何俊生 | Method for improvement and treatment of decertified land |
| CN106233844A (en) * | 2016-07-30 | 2016-12-21 | 山东胜伟园林科技有限公司 | A kind of application in hidden pipe salt discharge method and northeastward soda alkaline land improvement |
| CN107027369A (en) * | 2017-05-31 | 2017-08-11 | 山东省果树研究所 | Return salt-soda soil control system and its method in a kind of greenhouse |
| CN107182341A (en) * | 2017-07-21 | 2017-09-22 | 浙江德润市政园林有限公司 | A kind of beach saline land modification method |
| CN107258136A (en) * | 2017-06-05 | 2017-10-20 | 深圳文科园林股份有限公司 | A kind of arid area heavy salinized ground modification method |
| CN107371445A (en) * | 2017-08-30 | 2017-11-24 | 苏州三港农副产品配送有限公司 | Greenhouse soil salinization of soil modification method |
| CN109290333A (en) * | 2018-11-16 | 2019-02-01 | 梅州市华智星技术服务有限公司 | A kind of integrated application method of chromium slag landfill disposal |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104885611A (en) * | 2015-06-19 | 2015-09-09 | 青岛袁策生物科技有限公司 | Method for improving soil saline alkali |
| CN105814996A (en) * | 2015-11-13 | 2016-08-03 | 何俊生 | Method for improvement and treatment of decertified land |
| CN105359663A (en) * | 2015-11-30 | 2016-03-02 | 天津吉天环境科技发展有限公司 | Improvement method for soil of saline and alkaline land |
| CN105359663B (en) * | 2015-11-30 | 2017-10-31 | 天津吉天环境科技发展有限公司 | Saline-alkali soil improvement method |
| CN106233844A (en) * | 2016-07-30 | 2016-12-21 | 山东胜伟园林科技有限公司 | A kind of application in hidden pipe salt discharge method and northeastward soda alkaline land improvement |
| CN107027369A (en) * | 2017-05-31 | 2017-08-11 | 山东省果树研究所 | Return salt-soda soil control system and its method in a kind of greenhouse |
| CN107258136A (en) * | 2017-06-05 | 2017-10-20 | 深圳文科园林股份有限公司 | A kind of arid area heavy salinized ground modification method |
| CN107182341A (en) * | 2017-07-21 | 2017-09-22 | 浙江德润市政园林有限公司 | A kind of beach saline land modification method |
| CN107371445A (en) * | 2017-08-30 | 2017-11-24 | 苏州三港农副产品配送有限公司 | Greenhouse soil salinization of soil modification method |
| CN109290333A (en) * | 2018-11-16 | 2019-02-01 | 梅州市华智星技术服务有限公司 | A kind of integrated application method of chromium slag landfill disposal |
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