CN106211839A - A kind of water discharge method of alkaline land soil - Google Patents
A kind of water discharge method of alkaline land soil Download PDFInfo
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- CN106211839A CN106211839A CN201610561189.0A CN201610561189A CN106211839A CN 106211839 A CN106211839 A CN 106211839A CN 201610561189 A CN201610561189 A CN 201610561189A CN 106211839 A CN106211839 A CN 106211839A
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- water
- discharge method
- water discharge
- soil
- alkaline land
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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
Abstract
The invention discloses the water discharge method of a kind of alkaline land soil, described water discharge method includes: sprawl hydrophobic membrane at the depths of 25 55 centimetres of alkaline land soil layer, wherein, described hydrophobic membrane is provided above Drain pipe network described in Drain pipe network and is made up of the longitudinal drainage pipe that orthogonal many horizontal transverse drains and Duo Gen are longitudinal, the transverse drain intersected and longitudinal drainage fluid communication；Drain pipe network is provided with outlet and water inlet；The pipe shaft of described transverse drain and longitudinal drainage pipe is provided with permeability hole；At water outlet, suction pump is set; the water inlet of suction pump is in fluid communication with described outlet; when rain stops or fills row's stopping, starting suction pump and draw water, make the edaphic moisture in hydrophobic membrane top enter Drain pipe network by described permeability hole and then discharge from Drain pipe network.The not only using water wisely of the water discharge method of the present invention and the salinity of salt-soda soil upper layer of soil layer can be made to keep in balance.
Description
Technical field
The present invention relates to agricultural technology field, be specifically related to the water discharge method of a kind of alkaline land soil.
Background technology
Salt-soda soil is a kind of salt aggregation, refers to that salinity contained inside soil has influence on the normal raw of crop
Long, according to UNESCO and food and agricultural organization's incomplete statistics, the area in salt-soda soil, the whole world is 9.5438 hundred million hectares,
Wherein China is 99,130,000 hectares.China's alkaline earth and the formation of alkali-affected soil, major part is accumulative relevant with Carbonates In Soil,
Thus basicity is the highest, serious salt affected soil regional plant is little to existence.
Salt-soda soil typically by filling discharge into row removing saline and alkaline, remove saline and alkaline during be usually present two problems, first is
Fill row drip washing gained bitter directly discharge, easily cause the secondary salinization of soil of neighbouring soil, its two be rain after, remove salt
The saline and alkaline meeting of the salt-soda soil lower floor of alkali is gone to topsoil along with rain evaporation of water, so that the saliferous of salt-soda soil upper layer of soil
Amount rises.
Summary of the invention
It is an object of the invention to provide the water discharge method of a kind of alkaline land soil, the not only using water wisely of this water discharge method and
And the salinity of salt-soda soil upper layer of soil layer can be made to keep in balance.
For achieving the above object, the present invention provides the water discharge method of a kind of alkaline land soil, described water discharge method to include:
The depth of 25-55 centimetre of alkaline land soil layer sprawls hydrophobic membrane, and wherein, described hydrophobic membrane is provided above Drain pipe network,
Described Drain pipe network is made up of the longitudinal drainage pipe that orthogonal many horizontal transverse drains and Duo Gen are longitudinal, intersects
Transverse drain and longitudinal drainage fluid communication；Drain pipe network is provided with outlet and water inlet；Described transverse drain and
The pipe shaft of longitudinal drainage pipe is provided with permeability hole；Suction pump is set at water outlet, the water inlet of suction pump and described outlet
Fluid communication, when rain stops or fills row's stopping, starting suction pump and draws water, make the edaphic moisture in hydrophobic membrane top pass through institute
State permeability hole enter Drain pipe network and then discharge from Drain pipe network.
Preferably, the material of described hydrophobic membrane is polypropylene, Kynoar, polyethylene or polyether sulfone.
Preferably, the thickness of described hydrophobic membrane is 1-5 millimeter, and described hydrophobic membrane is provided with the air-vent run through up and down.
Preferably, the distance of adjacent described transverse drain is 50-150 centimetre, the distance of adjacent described longitudinal drainage pipe
For 50-150 centimetre, the internal diameter of described transverse drain and longitudinal drainage pipe is 3-15 centimetre.
Preferably, a diameter of 50 microns-0.5 millimeter of described permeability hole, described transverse drain and longitudinal drainage pipe
Percent opening is 25-35%.
Preferably, described water discharge method also includes: the water being pumped by described suction pump is sent in cistern and stored.
Preferably, the water inlet of described Drain pipe network is provided with water injecting pump, the water inlet of described water injecting pump and described water-retention
Pond is in fluid communication, and the water out of described water injecting pump is in fluid communication with described water inlet；When needs reduce edaphic salinity,
In the soil horizon of hydrophobic membrane top, inject moisture by water injecting pump, keep suction pump to close simultaneously, after the abundant moistening of soil horizon,
Start suction pump to be detached by the moisture in soil horizon.
Preferably, described water discharge method also includes: just by the hydromining reverse osmosis membrane filtration salt therein in cistern
After reinject in soil horizon.
Preferably, the outside of described transverse drain and longitudinal drainage pipe is enclosed with metalling, the thickness of described metalling
For 1-3 centimetre, the particle diameter of rubble is 0.1-0.5 centimetre.
The inventive method has the advantage that
Draining gained moisture can not only be collected conveniently recycling by the water discharge method of the present invention, but also can in case
Only the salinity of soil lower floor takes upper soll layer to along with moisture evaporates, but also facilitates the irrigation and drainage in salt-soda soil to wash.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of detailed description of the invention of the corollary system that water discharge method of the present invention is used.
Detailed description of the invention
Detailed description below is used for illustrating the present invention, but is not limited to the scope of the present invention.
As it is shown in figure 1, the present invention provides the water discharge method of a kind of alkaline land soil, described water discharge method to include: saline and alkaline
The depth on edaphic 25-55 centimetre of ground sprawls hydrophobic membrane 1, and wherein, described hydrophobic membrane 1 is provided above Drain pipe network, institute
State Drain pipe network to be made up of the longitudinal drainage pipe 3 that orthogonal many horizontal transverse drains 2 and Duo Gen are longitudinal, intersect
Transverse drain 2 and longitudinal drainage pipe 3 are in fluid communication；Drain pipe network is provided with outlet and water inlet；Described transverse drain 2
The pipe shaft of longitudinal drainage pipe 3 is provided with permeability hole；At water outlet, suction pump 4 is set, the water inlet of suction pump 4 with described go out
The mouth of a river is in fluid communication, and when the rain stopping time, starts suction pump 4 and draws water, make the edaphic moisture in hydrophobic membrane 1 top pass through described in ooze
Open-work enters Drain pipe network and then discharges from Drain pipe network.
The water discharge method of the present invention can use after the rain, prevents the salinity of soil lower floor from taking soil to along with rainwater evaporates
Top layer.
Hydrophobic membrane is well-known to those skilled in the art, and such as, the material of described hydrophobic membrane 1 is polypropylene, poly-inclined fluorine
Ethylene, polyethylene or polyether sulfone.
In order to prevent lower soil to be compacted thus density increase, the thickness of described hydrophobic membrane 1 can be 1-5 millimeter, institute
State and the air-vent run through up and down in hydrophobic membrane 1, can be provided with.
Drain pipe is for discharging the moisture in soil, and the parameter such as internal diameter and length can set as required, such as, and phase
The distance of adjacent described transverse drain 2 is 50-150 centimetre, and the distance of adjacent described longitudinal drainage pipe 3 is 50-150 li
Rice, the internal diameter of described transverse drain 2 and longitudinal drainage pipe 3 is 3-15 centimetre, in order to keep moisture to discharge at the appropriate speed,
The diameter of described permeability hole can be 50 microns-0.5 millimeter, and the percent opening of described transverse drain 2 and longitudinal drainage pipe 3 is permissible
For 25-35%.
For the moisture recycling will collected in soil, described water discharge method can also include: by described suction pump 4 institute
The water being pumped is sent in cistern and is stored.
The draining of filling again in salt-soda soil is washed for convenience, another detailed description of the invention, described Drain pipe network enter water
Mouth is provided with water injecting pump 5, and the water inlet of described water injecting pump 5 is in fluid communication with described cistern, the water out of described water injecting pump 5 with
Described water inlet is in fluid communication；When needs reduce edaphic salinity, by water injecting pump 5 to hydrophobic membrane 1 top soil horizon
Middle injection moisture, keeps suction pump 4 to close simultaneously, after the abundant moistening of soil horizon, starts suction pump 4 by the moisture in soil horizon
Detach.It addition, water injecting pump can also be replaced by gas injection pump, prevent suction pump from being taken away together by soil air, thus reduce soil
The porosity of earth, affects plant root and breathes.
For using water wisely, described water discharge method can also include: the hydromining reverse osmosis membrane filtration in above-mentioned cistern
Reinject in soil horizon after salt therein.
In order to prevent permeability hole from being blocked by soil particle, the outside of described transverse drain 2 and longitudinal drainage pipe 3 is enclosed with
Metalling, the thickness of described metalling is 1-3 centimetre, and the particle diameter of rubble is 0.1-0.5 centimetre.
The present invention will be further illustrated by embodiment below, but the present invention is not therefore subject to any restriction.
Choose salt-soda soil, 2 mu of Xinjiang region, one mu as blank group, one mu as experimental group.
Under the soil of experimental group, 30 centimeters are laid 3 millimeters thick and are provided with the hydrophobic polypropylene film of air-vent, hydrophobic
Laying Drain pipe network above film, Drain pipe network adjacent drainage channel tube pitch is 1 meter, and drain pipe internal diameter is 12 centimetres, permeability hole big
Little is 0.1 millimeter, and percent opening is 29%.
Respectively two pieces of salt-soda soils are carried out the row of filling, makes water accumulating volume (computational methods are identical with rainfall) reach 100 millimeters, so
Rear experimental group discharges salt-soda soil moisture, and blank group makes moisture natural evaporation, and in soil, salinity is as shown in table 1.
Table 1
From the data of table 1 it can be seen that the water discharge method of the present invention can effectively reduce the transfer of salinity deep soil
To topsoil, the row of filling in salt-soda soil can be made to have good effect.
Although, the present invention is described in detail to have used general explanation and specific embodiment, but at this
On the basis of invention, can make some modifications or improvements it, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention, belong to the scope of protection of present invention.
Claims (9)
1. the water discharge method of an alkaline land soil, it is characterised in that described water discharge method includes:
Sprawling hydrophobic membrane (1) at the depth of 25-55 centimetre of alkaline land soil layer, wherein, described hydrophobic membrane (1) is provided above
Having Drain pipe network, described Drain pipe network is arranged by the longitudinal direction of orthogonal many horizontal transverse drains (2) and many longitudinal directions
Water pipe (3) is constituted, the transverse drain (2) intersected and longitudinal drainage pipe (3) fluid communication；Drain pipe network be provided with outlet and
Water inlet；The pipe shaft of described transverse drain (2) and longitudinal drainage pipe (3) is provided with permeability hole；
Arranging suction pump (4) at water outlet, the water inlet of suction pump (4) is in fluid communication with described outlet, when rain stops or fills
When row stops, starting suction pump (4) and draw water, make the edaphic moisture in hydrophobic membrane (1) top be entered by described permeability hole
Drain pipe network so from Drain pipe network discharge.
The water discharge method of alkaline land soil the most according to claim 1, it is characterised in that the material of described hydrophobic membrane (1)
For polypropylene, Kynoar, polyethylene or polyether sulfone.
The water discharge method of alkaline land soil the most according to claim 1, it is characterised in that the thickness of described hydrophobic membrane (1)
For 1-5 millimeter, described hydrophobic membrane is provided with, on (1), the air-vent run through up and down.
The water discharge method of alkaline land soil the most according to claim 1, it is characterised in that adjacent described transverse drain
(2) distance is 50-150 centimetre, and the distance of adjacent described longitudinal drainage pipe (3) is 50-150 centimetre, described transverse drainage
The internal diameter of pipe (2) and longitudinal drainage pipe (3) is 3-15 centimetre.
The water discharge method of alkaline land soil the most according to claim 1, it is characterised in that a diameter of the 50 of described permeability hole
Micron-0.5 millimeter, the percent opening of described transverse drain (2) and longitudinal drainage pipe (3) is 25-35%.
The water discharge method of alkaline land soil the most according to claim 1, it is characterised in that described water discharge method also includes:
The water being pumped by described suction pump (4) is sent in cistern and is stored.
The water discharge method of alkaline land soil the most according to claim 6, it is characterised in that the water inlet of described Drain pipe network
Being provided with water injecting pump (5), the water inlet of described water injecting pump (5) is in fluid communication with described cistern, and the water of described water injecting pump (5) goes out
Mouth is in fluid communication with described water inlet；When needs reduce edaphic salinity, by water injecting pump to hydrophobic membrane (1) top soil
Earth layer injects moisture, keeps suction pump (4) to close simultaneously, after the abundant moistening of soil horizon, start suction pump (4) by soil horizon
In moisture detach.
The water discharge method of alkaline land soil the most according to claim 7, it is characterised in that described water discharge method also includes:
Reinject in soil horizon after hydromining reverse osmosis membrane filtration salt therein in described cistern.
The water discharge method of alkaline land soil the most according to claim 1, it is characterised in that described transverse drain (2) and
The outside of longitudinal drainage pipe (3) is enclosed with metalling, and the thickness of described metalling is 1-3 centimetre, and the particle diameter of rubble is 0.1-0.5
Centimetre.
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| CN201610561189.0A CN106211839B (en) | 2016-07-15 | 2016-07-15 | A kind of water discharge method of alkaline land soil |
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| CN201610561189.0A CN106211839B (en) | 2016-07-15 | 2016-07-15 | A kind of water discharge method of alkaline land soil |
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| CN106211839A true CN106211839A (en) | 2016-12-14 |
| CN106211839B CN106211839B (en) | 2018-11-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108633367A (en) * | 2018-04-23 | 2018-10-12 | 中国农业科学院农业环境与可持续发展研究所 | A method of improvement salt-soda soil |
| CN110552336A (en) * | 2019-07-18 | 2019-12-10 | 正大农业科技(浙江)有限公司 | Large-scale coastal saline-alkali soil reclamation and route entry and drainage integrated construction method |
| CN111013254A (en) * | 2019-12-26 | 2020-04-17 | 山东国大黄金股份有限公司 | Arsenic-containing waste liquid filtering system |
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| CN201649063U (en) * | 2010-05-14 | 2010-11-24 | 东营金川水土环境工程有限公司 | Shallow-embedding alkali-removing and drainage device of concealed pipe in alkaline waterlogged lowland |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108633367A (en) * | 2018-04-23 | 2018-10-12 | 中国农业科学院农业环境与可持续发展研究所 | A method of improvement salt-soda soil |
| CN108633367B (en) * | 2018-04-23 | 2020-05-08 | 中国农业科学院农业环境与可持续发展研究所 | Method for improving saline-alkali soil |
| CN110552336A (en) * | 2019-07-18 | 2019-12-10 | 正大农业科技(浙江)有限公司 | Large-scale coastal saline-alkali soil reclamation and route entry and drainage integrated construction method |
| CN111013254A (en) * | 2019-12-26 | 2020-04-17 | 山东国大黄金股份有限公司 | Arsenic-containing waste liquid filtering system |
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| Publication number | Publication date |
|---|---|
| CN106211839B (en) | 2018-11-02 |
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