CN106385838A - Method of water seepage and salt drainage in salt and alkali shoal land - Google Patents
Method of water seepage and salt drainage in salt and alkali shoal land Download PDFInfo
- Publication number
- CN106385838A CN106385838A CN201610791711.4A CN201610791711A CN106385838A CN 106385838 A CN106385838 A CN 106385838A CN 201610791711 A CN201610791711 A CN 201610791711A CN 106385838 A CN106385838 A CN 106385838A
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- Prior art keywords
- alkali
- salt
- row
- water
- salt discharge
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Classifications
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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
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G25/00—Watering gardens, fields, sports grounds or the like
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- 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
- Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion
Abstract
A method of water seepage and salt drainage in salt and alkali shoal land comprises following steps: 1) land leveling, deep ditches which are 26 to 60 cm deep are dug with intervals of 0.4 to 8 meters; the deep ditches are one-way parallel ditches, or parallel ditches which are crossed in length and breadth with different density vertically and horizontally, a layer of sand which is 3 to 37 cm thick is laid at the bottom of the deep ditches to form underground alkali discharge sand ditches; 2) underground salt discharge pipes laying; 3) underground irrigation pipes laying; 4) deep scarification and knot breaking; 5) fresh water flooding irrigation; 6) salt water enhanced drainage: while fresh water flooding irrigation is being carried out, one ends of the underground salt discharge pipes are sealed with sealing plugs and the other ends are connected with water pumps to perform enhanced drainage on salt water leached to the underground salt discharge pipes; the leached salt water is drained to salt discharge ditches; 7) continuous irrigation and drainage: the fresh water flooding irrigation and the salt water enhanced drainage are repeated carrying out to quickly leach the salinity in the soil; when the salinity in the soil decreases to an expected target, irrigation and drainage are stopped.
Description
Technical field
The present invention relates to row alkali system and in particular to a kind of salt-alkali shoaly land infiltration Salt discharge method.
Background technology
Salt-soda soil is huge potential resource, and developing salt-soda soil is to bring more land under cultivation, further developing agricultural life
One of important measures produced.China there are about 1,500,000,000 mu of various salinized soil, accounts for the 26.3% of world's salinized soil area, strand and inland
Saline-alkali Land area is larger, and most of salt-soda soil is all constantly in state to be developed.Particularly heavy saline-alkali area at seashore ground
Lower water level height, soil salt height, soil compaction, soil fertility are low, poor air permeability is it is difficult to produce various industrial crops.How to make
Salt-soda soil quick desalination, is the technical bottleneck of alkaline land improving.In the experience in transformation salt-soda soil, vertical drainage, horizontal drainage
There are successful technology and method.In the sixties in last century to the nineties, the method for commonly used " shallow group wells, forced-ventilated fills by force " is entered
Row desalting salinized soil, the method can realize salt-soda soil quick desalination, but need to beat a large amount of vertical shafts using vertical drainage, and arranges pump
Stand, build drainage pipeline networks, not only up-front investment is high, and want constantly draining from vertical shaft, operational and administrative expenses is very big.Zhang Wanjun
Etc. disclosing a kind of underground pipe salt drainage method in shallow groundwater littoral saline soil area, the method for embedding of hidden pipe is defined；Peng Chengshan
Disclose the systematic approach that a kind of utilization closed drainage improves salt-soda soil, the construction method of closed drainage is limited
Fixed；Chen Rongmao etc. discloses a kind of salt-soda soil salt discharge alkali reduction concealed conduit device for, and hidden pipe specification and laying specification are defined；
But above-mentioned several hidden pipe Salt discharge method is not the system approach of salt-soda soil quick desalination it is impossible to realize salt-soda soil quick desalination.
The alkali method that changes in the salt-soda soil commonly used at present mainly has：1st, row's alkali ditch wild-flooding method, 2, embedded Pipe for draining alkali flood
Flooding irrigation method, 3, take surface saline and alkaline layer method away, 4 in addition, somebody has applied for beating the national patent of alkaline discharging well wild-flooding method.Warp
The present inventor is long-term it has been observed that method 1 and 3 has the defect changing alkali effect difference, and method 2 has investment greatly, and fertility runs off tight
The defect of weight, method 4 has investment greatly, the defect of DeGrain.Above-mentioned three kinds of methods all project presence and change alkali cycle length
Problem.
Content of the invention
In order to solve problems of the prior art, the present invention provides a kind of hidden pipe to fill row salt-soda soil quick desalination system
Method.Heavy saline-alkali area at seashore using trench digging box dam, salt discharge hidden pipe laying, irrigate hidden pipe laying, subsoiling break knot, fresh water basin irrigation,
A series of technological means such as salt water forced-ventilated, continuous filling row, anniversary salt discharge, realize salt-soda soil quick desalination.
The method of the invention comprises the following steps：
1) level land, interval 0.4-8 rice excavates deep 26-60 centimetre of zanjon, described zanjon is unidirectional parallel ditch or vertical
Traversed by fork, the vertically and horizontally different parallel ditch of density, fill the sand of 3-37 centimetre of thick layer in the zanjon bottom held successfully, form ground
Lower row's alkali sand furrow；Dig the row's alkali ditch connecting with underground every alkali layer, diversion irrigation arranges alkali, described be located at below sand every alkali layer, row
The distribution of alkali pipeline every alkali layer and for accommodating the sand launder in described Pipe for draining alkali road, described every alkali layer by particle diameter the building stones for 1-2cm
Accumulation forms；Described Pipe for draining alkali road includes some row's alkali longitudinal tubule (L tubule)s, some row's alkali transverse tubes and some union joints, and described union joint is used for
Connect described row's alkali longitudinal tubule (L tubule) and described row's alkali transverse tube；The position of described union joint is provided with inspection shaft；
2) salt discharge hidden pipe laying：Perpendicular to salt discharge ditch direction, parallel laid has the salt discharge hidden pipe of infiltration micropore, laying
Depth 1-1.5m, Lay interval 10-50m, and ensure that laying depth is higher than salt discharge ditch bottom, the two ends of salt discharge hidden pipe enter row
Salt ditch；
3) irrigate hidden pipe laying：After having laid salt discharge hidden pipe, hidden pipe is irrigated in laying, lays depth 0.8-1.3m, protects
Barrier laying depth is higher than salt discharge hidden pipe, and is provided with the outlet irrigating hidden pipe on raised fields surface；
4) subsoiling breaks knot：Subsoiling is carried out on raised fields surface to soil using subsoiling machinery, abolishes soil compaction；Subsoiling depth
For 0.5-0.8m, ensure that subsoiling depth is higher than to irrigate hidden pipe laying depth
5) fresh water is basined irrigation：Using the irrigation hidden pipe having laid, raised fields is irrigated, transplant and plough deeply for first 5～10 days
Plough, then pour into fresh water, make fresh water be higher than field face 2～4cm, then rotary tillage, soaked field was discharged after 1～2 day；Continue to pour into fresh water,
Fresh water is made to be higher than field face 2～4cm, then rotary tillage is carefully harrowed, and soaked field to top layer clarification of water heel row goes out；Pour into fresh water again, keep field
Face 1～2cm water layer；
6) salt water forced-ventilated：While carrying out fresh water and basin irrigation, block salt discharge hidden pipe one end, the other end and water pump with sealing-plug
Connect, forced-ventilated is carried out to the salt water in salt discharge hidden pipe for the drip washing；Drip washing salt water enters salt discharge ditch；
7) the continuous row of filling：Fresh water is basined irrigation and is repeatedly carried out with salt water forced-ventilated simultaneously, makes the quick drip washing of the salinity in soil, works as soil
Earth salinity is reduced to during target and stops the row of filling.
29-60 centimetre of described zanjon, the thickness that zanjon bottom fills sand is 3-27 centimetre, deep plough and make ditch dug with a plow as deep as
16-33 centimetre, during deep ploughing in ditch dug with a plow the broken straw rod of dispenser 3-10 cm thick or sand.
The cross section that zanjon fills sand layer is up-narrow and down-wide, described row's alkali longitudinal tubule (L tubule) and/or row's alkali transverse tube is dug to have and oozes
Alkali hole, described Pipe for draining alkali road is arranged with nonwoven layer, and the inclination angle of described row's alkali longitudinal tubule (L tubule) and/or row's alkali transverse tube is 0.05-0.15%.
Heavy saline first strips a field the salinization topsoil on 1-7 centimetre of surface, then levels land, and first time diversion irrigation is arranged
After alkali, then plough, the row's of watering alkali.
With the method for the invention, soil quick desalination can be made in a short time.Vertical with " shallow group wells, forced-ventilated fills by force " etc.
Salt discharge method is compared, and desalting effect quite, but need not extract salt water, operational management after up-front investment minimizing, a desalination for a long time
Cost reduces.Compared with other hidden pipe Salt discharge methods disclosed, the desalination period of other hidden pipe Salt discharge methods in 3-5,
The method of the invention can be with quick desalination, and at 1-3 month, desalting effect was significantly better than additive method to desalination period.
Specific embodiment
With reference to embodiment, the present invention is further described.
Embodiment 1
1) level land, interval 0.4-8 rice excavates deep 26-60 centimetre of zanjon, described zanjon is unidirectional parallel ditch or vertical
Traversed by fork, the vertically and horizontally different parallel ditch of density, fill the sand of 3-37 centimetre of thick layer in the zanjon bottom held successfully, form ground
Lower row's alkali sand furrow；Dig the row's alkali ditch connecting with underground every alkali layer, diversion irrigation arranges alkali, described be located at below sand every alkali layer, row
The distribution of alkali pipeline every alkali layer and for accommodating the sand launder in described Pipe for draining alkali road, described every alkali layer by particle diameter the building stones for 1-2cm
Accumulation forms；Described Pipe for draining alkali road includes some row's alkali longitudinal tubule (L tubule)s, some row's alkali transverse tubes and some union joints, and described union joint is used for
Connect described row's alkali longitudinal tubule (L tubule) and described row's alkali transverse tube；The position of described union joint is provided with inspection shaft；
2) salt discharge hidden pipe laying：Perpendicular to salt discharge ditch direction, parallel laid has the salt discharge hidden pipe of infiltration micropore, laying
Depth 1-1.5m, Lay interval 10-50m, and ensure that laying depth is higher than salt discharge ditch bottom, the two ends of salt discharge hidden pipe enter row
Salt ditch；
3) irrigate hidden pipe laying：After having laid salt discharge hidden pipe, hidden pipe is irrigated in laying, lays depth 0.8-1.3m, protects
Barrier laying depth is higher than salt discharge hidden pipe, and is provided with the outlet irrigating hidden pipe on raised fields surface；
4) subsoiling breaks knot：Subsoiling is carried out on raised fields surface to soil using subsoiling machinery, abolishes soil compaction；Subsoiling depth
For 0.5-0.8m, ensure that subsoiling depth is higher than to irrigate hidden pipe laying depth
5) fresh water is basined irrigation：Using the irrigation hidden pipe having laid, raised fields is irrigated, transplant and plough deeply for first 5～10 days
Plough, then pour into fresh water, make fresh water be higher than field face 2～4cm, then rotary tillage, soaked field was discharged after 1～2 day；Continue to pour into fresh water,
Fresh water is made to be higher than field face 2～4cm, then rotary tillage is carefully harrowed, and soaked field to top layer clarification of water heel row goes out；Pour into fresh water again, keep field
Face 1～2cm water layer；
6) salt water forced-ventilated：While carrying out fresh water and basin irrigation, block salt discharge hidden pipe one end, the other end and water pump with sealing-plug
Connect, forced-ventilated is carried out to the salt water in salt discharge hidden pipe for the drip washing；Drip washing salt water enters salt discharge ditch；
7) the continuous row of filling：Fresh water is basined irrigation and is repeatedly carried out with salt water forced-ventilated simultaneously, makes the quick drip washing of the salinity in soil, works as soil
Earth salinity is reduced to during target and stops the row of filling.
29-60 centimetre of described zanjon, the thickness that zanjon bottom fills sand is 3-27 centimetre, deep plough and make ditch dug with a plow as deep as
16-33 centimetre, during deep ploughing in ditch dug with a plow the broken straw rod of dispenser 3-10 cm thick or sand.
The cross section that zanjon fills sand layer is up-narrow and down-wide, described row's alkali longitudinal tubule (L tubule) and/or row's alkali transverse tube is dug to have and oozes
Alkali hole, described Pipe for draining alkali road is arranged with nonwoven layer, and the inclination angle of described row's alkali longitudinal tubule (L tubule) and/or row's alkali transverse tube is 0.05-0.15%.
Heavy saline first strips a field the salinization topsoil on 1-7 centimetre of surface, then levels land, and first time diversion irrigation is arranged
After alkali, then plough, the row's of watering alkali.
Beneficial effects of the present invention, can be embodied further by following test data.It is 1.82% in initial salt content
Heavy saline, carry out desalting effect test, setting 3 process：Untreated salt-soda soil, disclosed do not basined irrigation and by force
The simple hidden pipe Salt discharge method of row, the method for the invention, 0-40cm topsoil soils saliferous after being processed using different technologies scheme
Amount (%) can realize Soil Desalting in a short period of time, completes soil improvement then, the soil not accumulation of salt in the surface soil after desalination；And do not enter
Row basin irrigation with forced-ventilated in the case of, the salt discharge effect of simple hidden pipe Salt discharge method is slow, its desalination of disclosed as shown by data
Time is 3-5.
In such scheme, specification, size, quantity all can change.The description of the embodiment above is only used as the present invention one
A kind of embodiment that kind of hidden pipe fills row salt-soda soil quick desalination system approach technical scheme proposes, not as to method, structure and
The single restrictive condition of function.Ultimate principle and principal character and the advantages of the present invention of the present invention have been shown and described above.
It should be understood by those skilled in the art that, the present invention is not restricted to the described embodiments, described in above-described embodiment and description
Merely illustrate the principles of the invention, without departing from the spirit and scope of the present invention, the present invention also has various change
And improvement, this will be apparent to those skilled in the art, and these changes and improvements both fall within claimed this
In bright scope.Claimed scope is by appending claims and its equivalent thereof.
Claims (5)
1. a kind of salt-alkali shoaly land infiltration Salt discharge method, including：
1) level land, interval 0.4-8 rice excavates deep 26-60 centimetre of zanjon, described zanjon is unidirectional parallel ditch or hands in length and breadth
Fork, the vertically and horizontally different parallel ditch of density, fill the sand of 3-37 centimetre of thick layer in the zanjon bottom held successfully, form underground row
Alkali sand furrow；Dig the row's alkali ditch connecting with underground every alkali layer, diversion irrigation arranges alkali, described be located at below sand every alkali layer, Pipe for draining alkali
Road distribution every alkali layer and for accommodating the sand launder in described Pipe for draining alkali road, described every alkali layer by particle diameter the spoil pile for 1-2cm
Form；Described Pipe for draining alkali road includes some row's alkali longitudinal tubule (L tubule)s, some row's alkali transverse tubes and some union joints, and described union joint is used for connecting
Described row's alkali longitudinal tubule (L tubule) and described row's alkali transverse tube；The position of described union joint is provided with inspection shaft；
2) salt discharge hidden pipe laying：Perpendicular to salt discharge ditch direction, parallel laid has the salt discharge hidden pipe of infiltration micropore, lays depth
1-1.5m, Lay interval 10-50m, and ensure that laying depth is higher than salt discharge ditch bottom, the two ends of salt discharge hidden pipe enter salt discharge
Ditch；
3) irrigate hidden pipe laying：After having laid salt discharge hidden pipe, hidden pipe is irrigated in laying, lays depth 0.8-1.3m, ensures paving
If depth is higher than salt discharge hidden pipe, and it is provided with the outlet irrigating hidden pipe on raised fields surface；
4) subsoiling breaks knot：Subsoiling is carried out on raised fields surface to soil using subsoiling machinery, abolishes soil compaction；Subsoiling depth is
0.5-0.8m, ensures that subsoiling depth is higher than to irrigate hidden pipe laying depth
5) fresh water is basined irrigation：Using the irrigation hidden pipe having laid, raised fields is irrigated, transplanting is ploughed deeply cultivated, so for first 5～10 days
After pour into fresh water, make fresh water be higher than field face 2～4cm, then rotary tillage, soaked field was discharged after 1～2 day；Continue to pour into fresh water, make fresh water
Higher than field face 2～4cm, then rotary tillage is carefully harrowed, and soaked field to top layer clarification of water heel row goes out；Pour into fresh water again, keep field face 1～
2cm water layer；
6) salt water forced-ventilated：While carrying out fresh water and basin irrigation, block salt discharge hidden pipe one end with sealing-plug, the other end is with water pump even
Connect, forced-ventilated is carried out to the salt water in salt discharge hidden pipe for the drip washing；Drip washing salt water enters salt discharge ditch；
7) the continuous row of filling：Fresh water is basined irrigation and is repeatedly carried out with salt water forced-ventilated simultaneously, makes the quick drip washing of the salinity in soil, works as soil salt
Divide to be reduced to during target and stop the row of filling.
2. according to claim 1 salt-alkali shoaly land infiltration Salt discharge method it is characterised in that 29-60 centimetre of described zanjon, zanjon
Bottom fill sand thickness be 3-27 centimetre, deep plough and make ditch dug with a plow as deep as 16-33 centimetre, during deep ploughing in ditch dug with a plow dispenser 3-10
The broken straw rod of cm thick or sand.
3. salt-alkali shoaly land according to claim 1 or claim 2 seeps water Salt discharge method it is characterised in that zanjon fills the cross-sectional of sand layer
Face is up-narrow and down-wide, described row's alkali longitudinal tubule (L tubule) and/or row's alkali transverse tube is dug to have and oozes alkali hole, described Pipe for draining alkali road is arranged with non-woven fabrics
Layer, the inclination angle of described row's alkali longitudinal tubule (L tubule) and/or row's alkali transverse tube is 0.05-0.15%..
4. salt-alkali shoaly land according to claim 1 or claim 2 infiltration Salt discharge method it is characterised in that heavy saline first strips a field table
The salinization topsoil in 1-7 centimetre of face, then level land.
5. alkali-removing modifying method far alkaline land according to claim 1 or claim 2 it is characterised in that first time diversion irrigation row alkali after,
Plough again, the row's of watering alkali.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610791711.4A CN106385838A (en) | 2016-08-31 | 2016-08-31 | Method of water seepage and salt drainage in salt and alkali shoal land |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610791711.4A CN106385838A (en) | 2016-08-31 | 2016-08-31 | Method of water seepage and salt drainage in salt and alkali shoal land |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106385838A true CN106385838A (en) | 2017-02-15 |
Family
ID=58001401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610791711.4A Withdrawn CN106385838A (en) | 2016-08-31 | 2016-08-31 | Method of water seepage and salt drainage in salt and alkali shoal land |
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| CN (1) | CN106385838A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111742636A (en) * | 2020-05-30 | 2020-10-09 | 杭州聚和土地规划设计有限公司 | Salt washing treatment system and method for salt pan |
| CN112703847A (en) * | 2020-12-04 | 2021-04-27 | 河海大学 | Coastal saline-alkali soil improvement method based on physical salt elimination |
-
2016
- 2016-08-31 CN CN201610791711.4A patent/CN106385838A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111742636A (en) * | 2020-05-30 | 2020-10-09 | 杭州聚和土地规划设计有限公司 | Salt washing treatment system and method for salt pan |
| CN112703847A (en) * | 2020-12-04 | 2021-04-27 | 河海大学 | Coastal saline-alkali soil improvement method based on physical salt elimination |
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Application publication date: 20170215 |