CN105165167B - Method for desalting salinized soil - Google Patents
Method for desalting salinized soil Download PDFInfo
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- CN105165167B CN105165167B CN201510612311.8A CN201510612311A CN105165167B CN 105165167 B CN105165167 B CN 105165167B CN 201510612311 A CN201510612311 A CN 201510612311A CN 105165167 B CN105165167 B CN 105165167B
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
Abstract
The invention provides a kind of method for desalting salinized soil, comprise the following steps：Ditching is carried out in the salt-soda soil for treating desalination, channel and growing area is formed；Halophytes is planted in channel；Desalting processing is carried out to growing area；In plantation layer, salt content monitor probe is set, determine saliferous volume index and monitor supervision platform is sent to by Internet Server, monitor supervision platform is judged by presetting the first salt index and the second salt index with the salt index of detection, early warning or alarm signal are made, desalting processing is periodically irrigated to plantation layer according to the signal made.Whereby, the present invention i.e. can be with the saliferous volume index on accurate detection plantation layer bottom, middle part and top, it is monitored by Network Information platform, periodically carry out the irrigation desalinization of soil by flooding or leaching, increase salt discharge effect, shorten the salt discharge cycle, improve the survival rate of plant, the salt solution plantation halophytes of collection is used simultaneously, resource is reached rational utilization.
Description
Technical field
The present invention relates to technical field of land improvement, more particularly to a kind of method for desalting salinized soil.
Background technology
More than 18000 kilometers of China's seashore line length.It is the ground for moving back sea that coastal saline-alkali area is mostly, and it is strand salt that its soil is most of
Alkaline earth, directly develops on beach salt marsh mud.This kind of salt-soda soil heavy texture, not only upper soll layer salification weight,
It is close with original salt marsh mud and heart subsoil salt content is also very high.Simultaneously as coastal region underground water buried depth is shallow and shallow
Layer underground water is salt water, and high salinity underground water is accumulated in upper layer of soil with strong terramycin dregs, and soil salt content exists more
Between 0.4-2%, even up to 3-4%.Another feature of coastal saline-alkali soil, is soil and groundwater salinity chemistry
Composition is consistent with seawater, and sodium chloride salt has comparative advantage, and soil sodium adsorption ratio is very high, adds and is formed at salt marsh mud, causes soil
Earth heavy texture, structure are poor, gas permeability is bad, in addition to the extremely strong a small number of halophytes of salt tolerance, common crops, grass
Level ground, flowers, tree and shrubs etc. can not grow.
At present, the area in salt-soda soil is constantly expanding, the universities and colleges of lot of domestic and foreign, and scientific research institutions are being studied always should
To the governing problem in salt-soda soil, most of hydraulic engineering methods for using, biological harnessing method, chemical-agent technique and Chinese scholar are permitted
Will it is female at the beginning of the eighties in last century it is also proposed that flush discharge order by " it is light after first weighing, i.e., first wash heavy saline, after wash light salt-soda soil
With downstream behind upstream first in the range of the sublateral canal " desalinization of soil by flooding or leaching method etc..
But, these methods also achieve certain effect on the basis of certain, but numerous technical sides for showing
Case and construction technology are more delayed, and to China, urgently land resource leaved for development is slower and relatively costly, and salt discharge effect is not
Substantially.
In summary, prior art there will naturally be inconvenience and defect in actual use, it is therefore necessary to be improved.
The content of the invention
For above-mentioned defect, it is an object of the invention to provide a kind of method for desalting salinized soil, it can accurately be examined
The saliferous volume index of plantation layer is surveyed, is monitored by Network Information platform, periodically carry out the irrigation desalinization of soil by flooding or leaching, increase salt discharge effect
Really, shorten the salt discharge cycle, improve the survival rate of plant, while the salt solution plant utilization that will be collected, makes resource reach rationalization
Utilize.
To achieve these goals, the present invention provides a kind of method for desalting salinized soil, comprises the following steps：
A, carry out ditching in the salt-soda soil for treating desalination, form channel and growing area；
B, halophytes is planted in channel；
C, desalting processing is carried out to growing area, step c is specifically included：
C1, metalling is laid in the middle of growing area, blocking growing area forms capillary, it is to avoid saline-alkali water is returned to；
C2, metalling top lay salt discharge alkali pipe, for the saline-alkali water returned on growing area bottom to be expelled into canal in time
Road；
C3, salt discharge alkali pipe top cover saline-alkali soil, formed plantation layer, to plantation layer carry out 24~48 hours fresh water irrigations
Desalination.
D, to plantation layer carry out desalting effect detection process, step d is specifically included：
D1, salt content monitor probe is respectively provided with the plantation bottom of layer, middle part and top, is visited by the salt content
Chaining pin determines the saliferous volume index of plantation layer, obtains salt content detection index；
D2, salt content detection index in step d1 is sent to monitor supervision platform by the webserver；
D3, the monitor supervision platform preset the first saliferous volume index and the second saliferous volume index, the first saliferous volume index
Less than the second saliferous volume index, the monitor supervision platform by the first saliferous volume index, the second saliferous volume index with it is described
Salt content detection index compares size；
The salt content detection index higher than the first saliferous volume index and during less than the second saliferous volume index, institute
State monitor supervision platform and send early warning signal；
When the salt content detection index is higher than the second saliferous volume index, the monitor supervision platform sends alarm signal；
D4, the early warning signal in step d3 and the alarm signal, desalting processing is periodically irrigated to plantation layer.
As preferred technical scheme, in the step d1 salt content detection index include bottom salt content Monitoring Index,
Middle part salt content Monitoring Index and top salt content Monitoring Index.
Used as preferred technical scheme, early warning signal includes bottom early warning signal, middle part early warning signal in the step d3
With top early warning signal, the alarm signal include bottom alarm signal, middle part alarm signal and top alarm signal.
Used as preferred technical scheme, saliferous volume index described in the step d is the solubility for determining plantation layer soil
Salt content, sodium ions content, calculate the first factor value for obtaining saliferous volume index.
Used as preferred technical scheme, the first saliferous volume index described in the step d3 is 2g/L~3g/L, described the
Two saliferous volume indexes are 5g/L~6g/L.
Used as preferred technical scheme, the salt discharge alkali pipe and the channel can be laid in the same direction, also can vertically lay.
As preferred technical scheme, straw layer is provided between the metalling and the salt discharge alkali pipe.
Used as preferred technical scheme, the halophytes includes salicornia europaeal.
Used as preferred technical scheme, the channel can dig a plurality of, and the channel intersects around growing area, the salt discharge
Alkali pipe can both ends open simultaneously to both sides channel salt discharge buck.
Used as preferred technical scheme, the salt content monitor probe can spacing 20~30 on plantation layer surface direction
Rice interval setting.
Beneficial effects of the present invention：By providing a kind of method for desalting salinized soil, the method can be examined accurately the present invention
The saliferous volume index on plantation layer bottom, middle part and top is surveyed, is monitored by Network Information platform, periodically carried out irrigation and wash
Salt, increases salt discharge effect, shortens the salt discharge cycle, improves the survival rate of plant, while the salt solution plant utilization that will be collected, makes money
Source reaches rational utilization.
Specific embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
The present invention provides a kind of method for desalting salinized soil, comprises the following steps：
A, carry out ditching in the salt-soda soil for treating desalination, form channel and growing area；
B, halophytes is planted in channel；
C, desalting processing is carried out to growing area, step c is specifically included：
C1, metalling is laid in the middle of growing area, blocking growing area forms capillary, it is to avoid saline-alkali water is returned to；
C2, metalling top lay salt discharge alkali pipe, for the saline-alkali water returned on growing area bottom to be expelled into canal in time
Road；
C3, salt discharge alkali pipe top cover saline-alkali soil, formed plantation layer, to plantation layer carry out 24~48 hours fresh water irrigations
Desalination.
D, to plantation layer carry out desalting effect detection process, step d is specifically included：
D1, salt content monitor probe is respectively provided with the plantation bottom of layer, middle part and top, is visited by the salt content
Chaining pin determines the saliferous volume index of plantation layer, obtains salt content detection index；
D2, salt content detection index in step d1 is sent to monitor supervision platform by the webserver；
D3, the monitor supervision platform preset the first saliferous volume index and the second saliferous volume index, the first saliferous volume index
Less than the second saliferous volume index, the monitor supervision platform by the first saliferous volume index, the second saliferous volume index with it is described
Salt content detection index compares size；
The salt content detection index higher than the first saliferous volume index and during less than the second saliferous volume index, institute
State monitor supervision platform and send early warning signal；
When the salt content detection index is higher than the second saliferous volume index, the monitor supervision platform sends alarm signal；
D4, the early warning signal in step d3 and the alarm signal, desalting processing is periodically irrigated to plantation layer.
Preferably, salt content detection index includes bottom salt content Monitoring Index, middle part salt content in the step d1
Monitoring Index and top salt content Monitoring Index.
Preferably, early warning signal includes bottom early warning signal, middle part early warning signal and top early warning in the step d3
Signal, the alarm signal includes bottom alarm signal, middle part alarm signal and top alarm signal.
Preferably, saliferous volume index described in the step d be determine the plantation soluble-salt content of layer soil, sodium from
Sub- content, calculates the first factor value for obtaining saliferous volume index.
Preferably, the first saliferous volume index described in the step d3 is 3g/L, and the second saliferous volume index is 6g/
L。
Preferably, the salt discharge alkali pipe and the channel can be laid in the same direction, also can vertically lay.
Preferably, it is provided with straw layer between the metalling and the salt discharge alkali pipe.
Preferably, the halophytes includes salicornia europaeal.
Preferably, the channel can dig a plurality of, and the channel intersects around growing area, and the salt discharge alkali pipe can two ends
Opening is simultaneously to the channel salt discharge buck of both sides.
Preferably, the salt content monitor probe on plantation layer surface direction can 20~30 meters of intervals of spacing set
Put.
Embodiment one：
Ditching is carried out on the salt-soda soil for treat desalination, channel and growing area is formed, various channels can be dug, intersected around kind
Growing area, can be used for the halophytes such as plantation salicornia europaeal in channel.Metalling is laid in the middle of growing area, capillary is formed to block
Pipe, it is to avoid saline-alkali water is returned to, on metalling top, laying straw layer re-lays laying salt discharge alkali pipe, and it is saline and alkaline that straw layer plays protection
The effect of pipe.Laying or the vertical laying in the same direction of salt discharge alkali Guan Keyu channels, salt discharge alkali pipe can one end or both ends open, be easy to
On the saline-alkali water that returns be expelled to channel in time, cover saline-alkali soil on saline and alkaline pipe top, carry out the irrigation of 24~48 hours, it is real
Existing desalting processing.
Salt content monitor probe is respectively provided with the bottom of plantation layer, middle part and top, from plantation layer just face direction,
The salt content survey meter probe of top plantation layer can 20~30 meters of interval settings of spacing, the setting phase on bottom and noon and top
Together, such setting can more accurately detect the salt content of plantation layer.Pin is detected by the salt content and determines plantation layer
Saliferous volume index, the saliferous volume index is soluble-salt content, the sodium ions content for determining plantation layer soil, calculates acquisition and contains
The first factor value of salt volume index, detects pin and measures bottom salt content detection index, middle part salt content and detect by salt content
Index and top salt content detection index.The bottom salt content detection index, middle part salt content detection index and top are contained
Salt amount detection index is sent to monitor supervision platform by the webserver.The monitor supervision platform default first is 3g/L containing saline and alkaline index
It is 6g/L containing saline and alkaline index with second, described first contains saline and alkaline index, the monitor supervision platform less than described second containing saline and alkaline index
Detected by the first saliferous volume index, the second saliferous volume index and the bottom salt content detection index, middle part salt content
Index and top salt content detection index compare size.Comparative result is as follows：
When the bottom salt content Monitoring Index refers to more than the first saliferous volume index 3g/L and less than the second salt content
Number 6g/L, the middle part salt content detection index and top salt content detection index are respectively less than the first saliferous volume index 3g/L
When, the monitor supervision platform sends bottom early warning signal；
When the middle part salt content Monitoring Index refers to more than the first saliferous volume index 3g/L and less than the second salt content
Number 6g/L, the bottom salt content detection index and top salt content detection index are respectively less than the first saliferous volume index 3g/L
When, the monitor supervision platform sends middle part early warning signal；
When the top salt content Monitoring Index refers to more than the first saliferous volume index 3g/L and less than the second salt content
Number 6g/L, the bottom salt content detection index and middle part salt content detection index are respectively less than the first saliferous volume index 3g/L
When, the monitor supervision platform sends top early warning signal；
When the bottom salt content Monitoring Index and middle part salt content detection index are all higher than the first saliferous volume index
3g/L and less than the second saliferous volume index 6g/L, the top salt content detection index is less than the first saliferous volume index 3g/L
When, the monitor supervision platform sends bottom early warning signal and middle part early warning signal；
When the bottom salt content Monitoring Index and top salt content detection index are all higher than the first saliferous volume index
3g/L and less than the second saliferous volume index 6g/L, the middle part salt content detection index is less than the first saliferous volume index 3g/L
When, the monitor supervision platform sends bottom early warning signal and top early warning signal；
When the middle part salt content Monitoring Index and top salt content detection index are all higher than the first saliferous volume index
3g/L and less than the second saliferous volume index 6g/L, the bottom salt content detection index is less than the first saliferous volume index 3g/L
When, the monitor supervision platform sends middle part early warning signal and top early warning signal；
When the bottom salt content Monitoring Index, middle part salt content detection index and top salt content detection index are all higher than
The first saliferous volume index 3g/L and during less than the second saliferous volume index 6g/L, the monitor supervision platform sends bottom early warning letter
Number, middle part early warning signal and top early warning signal；
When the bottom salt content detection index, middle part saliferous volume index or top salt content detection index are more than described the
During two saliferous volume index 6g/L, the monitor supervision platform sends bottom alarm signal, middle part alarm signal or top alarm signal；
When the bottom salt content detection index and middle part saliferous volume index are more than the second saliferous volume index 6g/L,
The monitor supervision platform sends bottom alarm signal and middle part alarm signal；
When the bottom salt content detection index and top saliferous volume index are more than the second saliferous volume index 6g/L,
The monitor supervision platform sends bottom alarm signal and top alarm signal；
When the middle part salt content detection index and top saliferous volume index are more than the second saliferous volume index 6g/L,
The monitor supervision platform sends middle part alarm signal and top alarm signal；
Described in being all higher than when the bottom salt content detection index, middle part salt content detection index and top saliferous volume index
During the second saliferous volume index 6g/L, the monitor supervision platform sends bottom alarm signal middle part alarm signal and top alarm signal；
The early warning signal and alarm signal sent according to monitor supervision platform described above, periodically irrigate at desalination plantation layer
Reason.Irrigated according to above-mentioned steps, not only rationally using freshwater resources but also can be carried out scientific application of irrigation, be conducive to planting layer
Plant growth.
In sum, the present invention is that can plant layer with accurate detection by providing a kind of method for desalting salinized soil, the method
The saliferous volume index on bottom, middle part and top, is monitored by Network Information platform, periodically carries out the irrigation desalinization of soil by flooding or leaching, is increased
Salt discharge effect, shortens the salt discharge cycle, improves the survival rate of plant, while the salt solution plantation halophytes of collection is subject into profit
With making resource reach rational utilization.
Certainly, the present invention can also have other various embodiments, ripe in the case of without departing substantially from spirit of the invention and its essence
Know those skilled in the art and work as and various corresponding changes and deformation, but these corresponding changes and change can be made according to the present invention
Shape should all belong to the protection domain of appended claims of the invention.
Claims (9)
1. a kind of method for desalting salinized soil, it is characterised in that comprise the following steps：
A, carry out ditching in the salt-soda soil for treating desalination, form channel and growing area；
B, halophytes is planted in channel；
C, desalting processing is carried out to growing area, step c is specifically included：
C1, metalling is laid in the middle of growing area, blocking growing area forms capillary, it is to avoid saline-alkali water is returned to；
C2, metalling top lay salt discharge alkali pipe, for the saline-alkali water returned on growing area bottom to be expelled into channel in time；
C3, saline-alkali soil is covered on salt discharge alkali pipe top, form plantation layer, carrying out 24~48 hours fresh water irrigations to plantation layer takes off
Salt；
D, to plantation layer carry out desalting effect detection process, step d is specifically included：
D1, salt content monitor probe is respectively provided with the plantation bottom of layer, middle part and top, pin is detected by the salt content
The saliferous volume index of plantation layer is determined, salt content detection index is obtained；
D2, salt content detection index in step d1 is sent to monitor supervision platform by the webserver；
D3, the monitor supervision platform preset the first saliferous volume index and the second saliferous volume index, and the first saliferous volume index is less than
The second saliferous volume index, the monitor supervision platform is by the first saliferous volume index, the second saliferous volume index and the saliferous
Amount detection index compares size；
The salt content detection index higher than the first saliferous volume index and during less than the second saliferous volume index, the prison
Control platform sends early warning signal；
When the salt content detection index is higher than the second saliferous volume index, the monitor supervision platform sends alarm signal；
D4, the early warning signal in step d3 and the alarm signal, desalting processing is periodically irrigated to plantation layer.
2. method for desalting salinized soil according to claim 1, it is characterised in that salt content detection index in the step d1
Including bottom salt content Monitoring Index, middle part salt content Monitoring Index and top salt content Monitoring Index.
3. method for desalting salinized soil according to claim 2, its feature with early warning signal includes in the step d3
Portion's early warning signal, middle part early warning signal and top early warning signal, the alarm signal include bottom alarm signal, middle part alarm signal
Number and top alarm signal.
4. the method for desalting salinized soil according to claim 1 or 2 or 3, it is characterised in that saliferous described in the step d
Volume index is soluble-salt content, the sodium ions content for determining plantation layer soil, calculates the first master point for obtaining saliferous volume index
Value.
5. the method for desalting salinized soil according to claim 1 or 2 or 3, it is characterised in that first described in the step d3
Saliferous volume index is 2g/L~3g/L, and the second saliferous volume index is 5g/L~6g/L.
6. the method for desalting salinized soil according to claim 1 or 2 or 3, it is characterised in that the salt discharge alkali pipe and the canal
Road is laying or vertical laying in the same direction.
7. the method for desalting salinized soil according to claim 1 or 2 or 3, it is characterised in that the metalling and the salt discharge
Straw layer is provided between alkali pipe.
8. the method for desalting salinized soil according to claim 1 or 2 or 3, it is characterised in that the halophytes is salt angle
Grass.
9. the method for desalting salinized soil according to claim 1 or 2 or 3, it is characterised in that the salt content monitor probe
Spacing is 20~30 meters of interval settings on plantation layer surface direction.
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107318290A (en) * | 2017-07-27 | 2017-11-07 | 郭婷 | It is capable of the salt-soda soil restorative procedure of Planting Crops |
| CN107371431A (en) * | 2017-07-27 | 2017-11-24 | 郭婷 | The salt-soda soil restorative procedure of timely salt discharge |
| CN108513871A (en) * | 2018-04-16 | 2018-09-11 | 上海市园林科学规划研究院 | Method for planting of the halophytes salt grass on brown ground saline-alkali soil |
| CN108781576B (en) * | 2018-05-25 | 2021-06-01 | 河海大学 | Beach desalting method coupling water circulation |
| CN112655306A (en) * | 2020-12-24 | 2021-04-16 | 常熟康艺建设有限公司 | Saline-alkali soil greening method and greening system |
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