CN102612882B - Method for improving coastal beach by burying plant stalks in ditches, and salt leaching and inhibiting system - Google Patents
Method for improving coastal beach by burying plant stalks in ditches, and salt leaching and inhibiting system Download PDFInfo
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- CN102612882B CN102612882B CN201210090448.8A CN201210090448A CN102612882B CN 102612882 B CN102612882 B CN 102612882B CN 201210090448 A CN201210090448 A CN 201210090448A CN 102612882 B CN102612882 B CN 102612882B
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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
- 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
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Abstract
The invention relates to a technical method and a salt leaching and inhibiting system for improving coastal beach by burying plant stalks in ditches. The invention is characterized in that: a drainage ditch salt leaching technology, a vertical shaft salt return inhibiting technology and a corresponding salt leaching and inhibiting system are adopted, salt in soil is leached through broad irrigation or by using natural rainfall, enters a drainage salt leaching channel which is dug in advance together with water, and is conveyed into deep soil through vertical shafts, so that the salt of surface soil is reduced. The plant stalks in the drainage salt leaching channel and the vertical shafts can keep large porosity inside accumulation for a long term, ensure that the salt leaching process is irreversible or hardly reversible, and have a long-term drainage salt leaching function. The invention follows the ecological safety concept and provides a positive and effective method for efficiently and safely improving the soil of beach and intensively and efficiently utilizing beach resources. By the invention, the production cost is greatly reduced, the salt leaching and inhibiting effect is lasting, and a problem of salt return of saline-alkali soil is avoided.
Description
Technical field
The present invention relates to the method on a kind of ditch implant stalk improvement Coastal beach ground and drench salt but salt system.
Background technology
The comprehensive exploitation of Coastal beach agriculture and forestry, to increase main agriculture and forestry product effective supply and to increase farmers' income as final goal, is administered with land comprehensive, is improved agriculture and forestry working condition for Main Means.Therefore, accelerate Coastal beach soil melioration process, the problem that first will solve gets rid of the obstruction factor being unfavorable for plant growth, improve the soil environment that Coastal beach ground is severe, improve labor productivity and economic benefit, realizing Coastal beach and continue harmonious development, is the basis of ecological recovery, is also the key of Coastal beach agriculture and forestry comprehensive exploitation.So far, China administers and utilizes saline soil substantially to have two kinds of approach: one is that improvement soil is to adapt to plant growth.But it is not enough that the maximum restraining factors of this way are freshwater resources, and the scale of solonchak and effect thus can be utilized to be difficult to there is large breakthrough for a long time.Two is introduce a fine variety the plant improvement saline-alkali soil adapting to salt marsh environment.The method is not change water and soil character and ecotope by dropping in a large number, and to adapt to plant growth, but employing is excavated, introduces, screens, cultivated a kind of development mode that the salt-tolerant plant with certain economic value carries out alkaline land improving.
At present, the utilization of China in saline land with administer to improve etc. in defined some single technologies, possessed certain technological reserve.But because various places exist difference in saline and alkaline the barrer types, physioclimate resource, economic society feature etc.; be difficult to agriculture and forestry efficiency utilization supporting technology and the application model thereof of unified use standard when zones of different, dissimilar alkaline land improving, thus many technical measures also have with a certain distance from scale application.Up to now, the improvement method on beach saline-alkali ground can be summarized as: Physical (sometimes also referred to as engineering method), chemical method and bioanalysis.Wherein physically improved method mainly takes engineering measure, and as the trench digging desalinization of soil by flooding or leaching and soil moved in improve the original method, although successful, cost is too high, and fresh water demand is also very large.Chemical amendments is application of organic fertilizers or soil chemistry modifying agent mainly, although it is also fast to take effect, environmental risk can rise.Although bio-technology improvement method is also effective, take effect slow.As can be seen here, whether proper technical measures are, is the core determining reclamation result, is also the key factor of early development benefit height.
Summary of the invention
Object of the present invention, to provide exactly a kind of effectively can play above-mentioned beach saline-alkali ground improvement method advantage, the above-mentioned improvement method Coastal beach ground improving technology method of defect and the Coastal beach that utilizes this technical method design ground improved system separately can be evaded again.
First technical scheme realizing the object of the invention is such:
The technical method on ditch implant stalk improvement Coastal beach ground, is characterized in that: described technical method comprises:
(1) salt technology is drenched in draining: on Coastal beach saline land, arrange draining drench salt passage, and keeps this draining to drench salt passage not by Sediment Siltation; Make the salinity leaching in described Coastal beach alkaline land soil, and enter described draining pouring salt passage with current, drench salt passage by this draining and the salinity in soil is discharged with water;
(2) accumulation of salt in the surface soil technology is suppressed: current are set and collect facility, and keep these current to collect facility not by Sediment Siltation, these current collect facility and drench salt passage with the draining described in above-mentioned steps (1) and be communicated with, the current flow through in described draining pouring salt passage enter described current and collect facility, collect facility be transported in deep soil by the salinity in described current by these current.
The salinity leaching made in described Coastal beach alkaline land soil described in above-mentioned steps (1) is the salinity leaching taked broad irrigation or utilize natural precipitation mode to make in soil, and preferred salinity leaching is the mode adopting natural precipitation.
It is on described Coastal beach saline land, be not more than 6 meters according to line-spacing arrange draining pouring salt ditch that salt passage is drenched in draining described in above-mentioned steps (1), and drench in salt ditch in this draining and place straw, the degree of depth that salt ditch is drenched in described draining is not less than 40 centimetres, width is not less than 20 centimetres.
It is drench salt passage along described draining to arrange a suppression accumulation of salt in the surface soil vertical shaft at interval of being no more than 50 meters that current described in above-mentioned steps (2) collect facility, and make itself and described draining drench salt passage to be communicated with, described suppression accumulation of salt in the surface soil vertical shaft bore is not less than 1 meter, accumulation of salt in the surface soil shaft depths is suppressed to be not less than 1.5 meters, this degree of depth is to suppress ground, accumulation of salt in the surface soil vertical shaft place for benchmark, place straw in described suppression accumulation of salt in the surface soil vertical shaft, and described straw is basseted be not less than 20 centimetres.
Described draining is drenched salt ditch planted agent and is filled up plant straw.
The described plant straw be placed in described draining pouring salt ditch or described suppression accumulation of salt in the surface soil vertical shaft is not perishable straw.
Described not perishable plant straw refers to herbaceous plant or tree branches.
The described plant straw be placed in suppression accumulation of salt in the surface soil vertical shaft is taken advantage of a situation along shaft height direction to erect and is placed in described vertical shaft.
The technical scheme realizing the present invention's second object is such:
A kind of pouring salt of ditch implant stalk improvement Coastal beach ground presses down salt system, it is characterized in that: described system comprises draining and drenches salt ditch and suppress accumulation of salt in the surface soil vertical shaft, described draining pouring salt ditch is not more than 6 meters according to line-spacing and is arranged on described Coastal beach saline land, the degree of depth that salt ditch is drenched in described draining is not less than 40 centimetres, width is not less than 20 centimetres, and described draining is drenched in salt ditch and placed straw; Drench salt ditch along described draining and a suppression accumulation of salt in the surface soil vertical shaft is set at interval of being no more than 50 meters, this suppression accumulation of salt in the surface soil vertical shaft drenches salt ditch with described draining and is communicated with, the bore of described suppression accumulation of salt in the surface soil vertical shaft is not less than 1 meter, the degree of depth is not less than 1.5 meters, this degree of depth is to suppress ground, accumulation of salt in the surface soil vertical shaft place for benchmark, place straw in described suppression accumulation of salt in the surface soil vertical shaft, and described straw is basseted be not less than 20 centimetres.
Described draining is drenched salt ditch planted agent and is filled up plant straw.
Described be placed on described draining drench in salt ditch or described suppression accumulation of salt in the surface soil vertical shaft plant straw be not perishable straw.
Described not perishable plant straw refers to herbaceous plant or tree branches.
The described plant straw be placed in suppression accumulation of salt in the surface soil vertical shaft is taken advantage of a situation to erect along suppression accumulation of salt in the surface soil shaft height direction and is placed in described suppression accumulation of salt in the surface soil vertical shaft.
The present invention have employed drain ditch and drenches salt technology and vertical shaft suppression accumulation of salt in the surface soil technology in Coastal beach alkaline land improving, and technology of the present invention is exactly carry out the desalinization of soil by flooding or leaching by the strength of broad irrigation or natural rainwater.By broad irrigation or the salinity leaching that utilizes natural precipitation mode to make in soil, and drench salt passage with the draining that current enter excavation in advance, eventually through each vertical shaft, salinity is transported in deep soil, thus reduces surface soil salinity.Because salt is walked with water, there is no water, just there is not the function of the desalinization of soil by flooding or leaching yet.Drench by draining water-band that salt ditch flows out and walked salinity in soil, and this draining can be collected through vertical shaft and drench the water and salinity that salt channel comes, play the object reducing salinity in soil.Filling up straw in ditch and vertical shaft is to prevent ditch or vertical shaft ineffective by Sediment Siltation, adopt not perishable straw such as the tree branches such as herbaceous plant or jute such as reed then can guarantee that straw can not form because rotting the evaporation accumulation of salt in the surface soil phenomenon finally caused capillary interstice, thus there is macrovoid in the long-term deposit inside that keeps, guarantee that desalinization of soil by flooding or leaching process is irreversible or difficult reversible, there is the function of long-term Drainage of salt.
In the present invention, current collect facility and can be arranged on draining and drench in salt passage and also can be arranged on draining and drench near salt passage.
In the present invention, the line-spacing that adjacent drainage channel drenches between salt ditch has certain association with its degree of depth, and namely line-spacing is little, salt ditch is drenched in draining can be more shallow, and line-spacing is large, then draining pouring salt ditch should be deeply, furrow width generally adopts slightly larger than 20 centimetres, mainly considers the equilibrium problem of technique effect and cost.And the draining pouring salt ditch that be arranged in parallel is also to reduce costs as far as possible.
For the line space that the degree of depth of salt ditch is drenched in draining, width, adjacent drainage channel drench salt ditch and suppress arranging interval, suppressing the data value such as the degree of depth, bore of accumulation of salt in the surface soil vertical shaft to take no maximum or the restriction without lower limit of accumulation of salt in the surface soil vertical shaft in the present invention, the present inventor in conjunction with the experience of production practices and Coastal beach subterranean water level about 1.5 meters, " salt is walked with water " theoretical etc. done, during actual enforcement, also to select suitable numerical value in conjunction with the condition etc. of cost and practical application.
The present invention breaks through traditional salt alkali soil improvement thoughtcast in technical thought, follow ecological safety theory, centered by soil salt and the starting point, set up the working specification being conducive to this technology and implementing, for efficient, safety improved beach ground soil and intensive efficiency utilization Tidal Flat Resources provide active and effective method.The present invention greatly reduces production cost, drenches salt, salt tolerance effects is lasting, does not need to consider saline land accumulation of salt in the surface soil problem.
Accompanying drawing explanation
Fig. 1 is present system embodiment one floor plan;
Fig. 2 is present system embodiment one structural representation;
Fig. 3 is present system embodiment two floor plan.
Description of reference numerals
1, salt ditch is drenched in 5-draining, 2,4,6-reed straw, 3,7-suppresses accumulation of salt in the surface soil vertical shaft, 8-jute straw.
Embodiment
For making your auditor and the public can understand feature of the present invention and beneficial effect thereof further, spy is described in detail as follows the specific embodiment of the present invention with embodiment:
Embodiment one:
(1) as Fig. 1, vegetation period the interior Coastal beach moderate that rainfall is plentiful to heavy salinized ground (surface layer 50cm soil mean salt amount 4.5g/kg, only have the plants such as the reed of Salt And Alkali Tolerance, denticulate ixeris herb and alkali wormwood artemisia in shape distribution of growing thickly) drench salt ditch 1 by line-spacing 2m, 3m, 6m excavation as the dark 40cm of draining pouring salt passage, the draining of wide 20cm respectively, this draining is drenched in salt ditch 1 and is filled up reed straw 2.
(2) drench in salt ditch 1 in above-mentioned draining and excavate at interval of 40m one is collected facility suppression accumulation of salt in the surface soil vertical shaft 3 as current, and make suppression accumulation of salt in the surface soil vertical shaft 3 and draining drench salt ditch 1 to be communicated with.The bore of this suppression accumulation of salt in the surface soil vertical shaft 3 is 1m, the degree of depth is benchmark 1.5m by ground, and suppressing takes advantage of a situation to erect along suppression accumulation of salt in the surface soil vertical shaft 3 short transverse in accumulation of salt in the surface soil vertical shaft 3 places not perishable reed straw 4, and this reed straw 4 is basseted at least 20cm.
Fig. 2 is present system embodiment one structural representation.
Vegetation period the interior region that rainfall is plentiful implement the present invention, the salinity leaching that natural precipitation mode makes in soil can be made full use of, and the draining pouring salt ditch 1 of excavation is in advance entered with current, suppress accumulation of salt in the surface soil vertical shaft 3 to be transported in deep soil by salinity eventually through each, thus reduce surface soil salinity.
Embodiment two:
(1) as Fig. 3, in the heavy salinized ground of Coastal beach, (surface layer 50cm soil mean salt amount is up to 9.4g/kg, obvious saline-alkaline spot soil is had to exist, only the plant such as the reed of a small amount of Salt And Alkali Tolerance, denticulate ixeris herb and alkali wormwood artemisia be the distribution of fragmentary shape) drench the draining pouring salt ditch 5 of the dark 40cm of salt passage, wide 20cm as draining by line-spacing 6 meters excavation, fill up reed straw 6 in ditch.
(2) drench salt ditch 5 along above-mentioned draining and excavate at interval of 40m one is collected facility suppression accumulation of salt in the surface soil vertical shaft 7 as current, and make suppression accumulation of salt in the surface soil vertical shaft 7 and draining drench salt ditch 5 to be communicated with.This suppression accumulation of salt in the surface soil vertical shaft 7 bore is 1m, the degree of depth is that benchmark counts 1.5m with ground, and suppressing takes advantage of a situation to erect along suppression accumulation of salt in the surface soil vertical shaft 7 short transverse in accumulation of salt in the surface soil vertical shaft 7 places not perishable jute stalk 8, and this jute stalk 8 is basseted >=30cm.
Made the salinity leaching in soil by broad irrigation or natural precipitation, and enter the draining pouring salt ditch 5 of excavation in advance with current, suppress accumulation of salt in the surface soil vertical shaft 7 to be transported in deep soil by salinity eventually through each, thus reduce surface soil salinity.
The present embodiment system architecture can be shown in Figure 2.
Claims (9)
1. the technical method on ditch implant stalk improvement Coastal beach ground, is characterized in that: described technical method comprises:
(1) salt technology is drenched in draining: on Coastal beach saline land, arrange draining drench salt passage, it is on described Coastal beach saline land, be not more than 6 meters according to line-spacing arrange draining pouring salt ditch that salt passage is drenched in described draining, and not perishable straw is placed in this draining pouring salt ditch, the degree of depth that salt ditch is drenched in described draining is not less than 40 centimetres, width is not less than 20 centimetres, and keeps this draining to drench salt passage not by Sediment Siltation; Make the salinity leaching in described Coastal beach alkaline land soil, and enter described draining pouring salt passage with current, drench salt passage by this draining and the salinity in soil is discharged with water;
(2) accumulation of salt in the surface soil technology is suppressed: current are set and collect facility, it is drench salt passage along described draining to arrange a suppression accumulation of salt in the surface soil vertical shaft at interval of being no more than 50 meters that current collect facility, and make itself and described draining drench salt passage to be communicated with, described suppression accumulation of salt in the surface soil vertical shaft bore is not less than 1 meter, accumulation of salt in the surface soil shaft depths is suppressed to be not less than 1.5 meters, this degree of depth is to suppress ground, accumulation of salt in the surface soil vertical shaft place for benchmark, not perishable straw is placed in described suppression accumulation of salt in the surface soil vertical shaft, and described straw is basseted be not less than 20 centimetres, and keep these current to collect facility not by Sediment Siltation, these current collect facility and drench salt passage with the draining described in above-mentioned steps (1) and be communicated with, the current flow through in described draining pouring salt passage enter described current and collect facility, collect facility by these current the salinity in described current is transported in deep soil.
2. the technical method on ditch implant stalk improvement Coastal beach ground according to claim 1, it is characterized in that: the salinity leaching made in described Coastal beach alkaline land soil described in described step (1), is the salinity leaching taked broad irrigation or utilize natural precipitation mode to make in soil.
3. the technical method on ditch implant stalk improvement Coastal beach ground according to claim 1, is characterized in that: described draining is drenched salt ditch planted agent and filled up not perishable plant straw.
4. the technical method on the ditch implant stalk improvement Coastal beach ground according to claim 1 or 3, is characterized in that: described not perishable plant straw refers to herbaceous plant or tree branches.
5. the technical method on ditch implant stalk improvement Coastal beach ground according to claim 1, is characterized in that: the described plant straw be placed in suppression accumulation of salt in the surface soil vertical shaft is taken advantage of a situation along shaft height direction to erect and is placed in described vertical shaft.
6. the pouring salt on a ditch implant stalk improvement Coastal beach ground presses down salt system, it is characterized in that: described system comprises draining and drenches salt ditch and suppress accumulation of salt in the surface soil vertical shaft, described draining pouring salt ditch is not more than 6 meters according to line-spacing and is arranged on described Coastal beach saline land, the degree of depth that salt ditch is drenched in described draining is not less than 40 centimetres, width is not less than 20 centimetres, and described draining is drenched in salt ditch and placed not perishable straw; Drench salt ditch along described draining and a suppression accumulation of salt in the surface soil vertical shaft is set at interval of being no more than 50 meters, this suppression accumulation of salt in the surface soil vertical shaft drenches salt ditch with described draining and is communicated with, the bore of described suppression accumulation of salt in the surface soil vertical shaft is not less than 1 meter, the degree of depth is not less than 1.5 meters, this degree of depth is to suppress ground, accumulation of salt in the surface soil vertical shaft place for benchmark, place not perishable straw in described suppression accumulation of salt in the surface soil vertical shaft, and described straw is basseted be not less than 20 centimetres.
7. the pouring salt on ditch implant stalk improvement Coastal beach ground according to claim 6 presses down salt system, it is characterized in that: described draining is drenched salt ditch planted agent and filled up plant straw.
8. the pouring salt on the ditch implant stalk improvement Coastal beach ground according to claim 6 or 7 presses down salt system, it is characterized in that: described not perishable plant straw refers to herbaceous plant or tree branches.
9. the pouring salt on ditch implant stalk improvement Coastal beach ground according to claim 6 presses down salt system, it is characterized in that: the described plant straw be placed in suppression accumulation of salt in the surface soil vertical shaft is taken advantage of a situation to erect along suppression accumulation of salt in the surface soil shaft height direction and is placed in described suppression accumulation of salt in the surface soil vertical shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210090448.8A CN102612882B (en) | 2012-03-26 | 2012-03-26 | Method for improving coastal beach by burying plant stalks in ditches, and salt leaching and inhibiting system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210090448.8A CN102612882B (en) | 2012-03-26 | 2012-03-26 | Method for improving coastal beach by burying plant stalks in ditches, and salt leaching and inhibiting system |
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| CN102612882A CN102612882A (en) | 2012-08-01 |
| CN102612882B true CN102612882B (en) | 2015-02-11 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103636309A (en) * | 2013-12-26 | 2014-03-19 | 江苏盖亚环境工程有限公司 | Method for improving coast beach alkaline soil |
| CN104115586B (en) * | 2014-06-13 | 2015-12-09 | 宁波高新区围海工程技术开发有限公司 | Heavy salinized ground administering method in one |
| CN104488392B (en) * | 2014-11-28 | 2016-08-17 | 江苏沿江地区农业科学研究所 | The straightforward procedure of sand strongly salined soil quick desalination |
| CN107580817A (en) * | 2016-07-08 | 2018-01-16 | 南京农业大学 | A kind of salt-soda soil stalk cultivates improvement new method every salt |
| CN107182331A (en) * | 2017-05-10 | 2017-09-22 | 江苏润顺生态农业科技有限公司 | A kind of method of the greenhouse gardening crops of the salinization of soil |
| CN107926185A (en) * | 2017-10-20 | 2018-04-20 | 山东胜景旅游发展有限公司 | The vertical shaft Salt discharge method improved the soil for salt-soda soil |
| CN108012606A (en) * | 2017-10-20 | 2018-05-11 | 山东胜景旅游发展有限公司 | For the inbuilt construction method of salt-soda soil vertical shaft |
| 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 |
| CN109937639A (en) * | 2019-03-29 | 2019-06-28 | 宁夏农林科学院农业生物技术研究中心（宁夏农业生物技术重点实验室） | A method of improvement salt-soda soil |
| CN112385348B (en) * | 2020-11-04 | 2022-05-13 | 山东农业大学 | Method for treating high-saline-alkali soil by using salt resistance and salt discharge of reed |
| CN112841015B (en) * | 2021-01-06 | 2022-05-13 | 西安理工大学 | Saline-alkali soil ecological drainage ditch structure and rapid construction method thereof |
| CN113179854B (en) * | 2021-06-02 | 2022-07-26 | 沧州职业技术学院 | Method for cultivating morchella in saline-alkali soil greenhouse |
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