CN113330846A - System for high-efficient improvement coastal saline-alkali soil of water resource circulation - Google Patents
System for high-efficient improvement coastal saline-alkali soil of water resource circulation Download PDFInfo
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- CN113330846A CN113330846A CN202110790077.3A CN202110790077A CN113330846A CN 113330846 A CN113330846 A CN 113330846A CN 202110790077 A CN202110790077 A CN 202110790077A CN 113330846 A CN113330846 A CN 113330846A
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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
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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
- A01B77/00—Machines for lifting and treating soil
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Abstract
The invention relates to the technical field of saline-alkali soil improvement, and discloses a system for efficiently improving coastal saline-alkali soil through water resource circulation, which comprises the following steps: opening a valve of the water storage device, and allowing irrigation water to flow out through a flushing pipe; irrigating water enters the saline-alkali soil body; irrigating water to drip wash saline-alkali soil; repeatedly and circularly leaching; when the salt content in the saline-alkali soil body is detected not to be reduced any more, the leaching is stopped; and finally, reasonably utilizing the desalted soil as resources. The system for efficiently improving the coastal saline-alkali soil by water resource circulation is a method for irrigating by using fresh water, washing off saline-alkali soil and discharging the saline-alkali soil, and has the advantages of simplicity, strong operability and no pollution to the environment; irrigating and leaching saline-alkali soil by using fresh water so as to obtain useful land capable of being recycled; salt is removed by a method of laying a concealed pipe, salt is discharged from the pipeline by irrigation or rain water leaching, and the salt and the alkali can be continuously removed by one-time investment.
Description
Technical Field
The invention relates to the technical field of saline-alkali soil improvement, in particular to a system for efficiently improving coastal saline-alkali soil through water resource circulation.
Background
The root cause of the saline-alkali soil is poor moisture condition, so in the initial stage of improvement, the emphasis should be placed on improving the moisture condition of the soil, and the traditional improvement method is generally carried out in several steps: firstly, discharging salt, washing salt and reducing the salt content of soil; planting saline-alkali tolerant plants, and fertilizing soil; finally, planting crops, establishing a perfect irrigation and drainage system, separating irrigation and drainage, enhancing water consumption management, strictly controlling the water level of underground water, and continuously leaching and removing salt in soil through irrigation flushing, flood diversion, silt discharge and the like; the method for repairing the saline-alkali soil by using the vegetation is also a good repairing method, the environment repairing by using the plants comprises multiple aspects, such as soil structure improvement, soil moisture balance change, change of a plant root system to a soil microenvironment, reduction of the salinity and the volume weight of the soil, increase of the porosity of the soil, increase of soil organic matters and total nitrogen, remarkable improvement of the biological activity (soil microorganisms and soil enzymes) of the soil and the like.
Disclosure of Invention
Technical problem to be solved
In order to solve the above technical problems, the present invention provides a system for efficiently improving coastal saline-alkali soil by water resource circulation, which is achieved by the following specific technical means:
the invention adopts the following technical scheme for realizing the technical purpose: the utility model provides a system for high-efficient improvement coastal saline-alkali soil of water resource circulation, including water storage equipment and saline-alkali soil body, water storage equipment is used for storing the drip washing water, water storage equipment's right side fixed mounting has the valve, the velocity of flow and the switch of valve control drip washing water, water storage equipment's below fixed mounting has unable adjustment base, unable adjustment base is used for fixed water storage equipment, the left side fixedly connected with wash pipe with water storage equipment and the fixed water storage equipment in ground, the recess has been seted up to the inside of saline-alkali soil body, the infiltration hole has been seted up to the bottom of the inside recess of seting up of saline-alkali soil body, the middle part of saline-alkali soil body is provided with the improvement layer, be provided with the water-storage layer below the improvement layer, the lower part fixedly connected with concealed conduit of water-storage layer.
Preferably, the top of the water storage device is provided with a water inlet hopper, and the upper part of the soil layer of the saline-alkali soil body is undisturbed soil.
Preferably, the improvement layer contains an improvement material of a calcareous modifier and an acid modifier, the calcareous modifier contains gypsum, phosphogypsum and desulfurized gypsum, and the acid modifier contains sulfuric acid, sulfur, aluminum sulfate and coal gangue.
Preferably, the improvement layer contains an organic composite improver and a soil structure improver, the organic composite improver contains industrial waste, and the soil structure improver contains polyacrylamide and polyvinyl alcohol.
Preferably, according to the above system for efficiently improving coastal saline-alkali soil by water resource recycling, a method for efficiently improving coastal saline-alkali soil by water resource recycling is provided, which comprises the following steps:
s1: opening a valve of the water storage device, and allowing irrigation water to flow out through a flushing pipe;
s2: irrigation water enters the grooves in the saline-alkali soil body and flows downwards from the seepage holes;
s3: irrigating water to leach the saline-alkali soil and matching with a modifier in the improvement layer to leach and improve the saline-alkali soil body;
s4: repeatedly and circularly carrying out the step S3, and then detecting the soil salinity index of the saline-alkali soil body;
s5: when the salt content in the saline-alkali soil body is detected not to be reduced any more, the leaching and watering are stopped;
s6: storing the leached water in the aquifer and flowing into the concealed pipe;
s7: and finally, reasonably utilizing the desalted soil as resources.
Compared with the prior art, the invention provides a system for efficiently improving coastal saline-alkali soil by water resource circulation, which has the following beneficial effects:
1. the system for efficiently improving the coastal saline-alkali soil by water resource circulation is a method for irrigating by using fresh water, washing off saline-alkali soil and discharging the saline-alkali soil, and the method is simple, strong in operability and free of pollution to the environment.
2. The system for efficiently improving the coastal saline-alkali soil by water resource circulation utilizes fresh water to irrigate and drip the saline-alkali soil, thereby obtaining useful land capable of being recycled.
3. The system for efficiently improving the coastal saline-alkali soil through water resource circulation discharges salt through a method of laying a concealed pipe, discharges salt from a pipeline through irrigation or drip washing of rainwater, and can continuously discharge the salt and alkali through one-time investment. Generally, the salt content in 1 meter can be reduced to below 0.3 percent, and the harm of salt and alkali to garden plants is basically solved. Meanwhile, the composition has a certain waterlogging prevention effect.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of area A of FIG. 1 according to the present invention.
100. A water storage device; 101. a valve; 102. a fixed base; 103. a flush pipe; 200. a saline-alkali soil body; 201. a groove; 202. infiltrating holes; 300. an improved layer; 400. a aquifer; 500. and (5) carrying out dark tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The utility model provides a system for coastal saline-alkali soil is improved to water resource circulation high efficiency, including water storage device 100 and saline-alkali soil body 200, the top of water storage device 100 is provided with into water fill, the upper portion of saline-alkali soil body 200 soil layer is original state soil, also commonly called original state soil sample, be the soil sample that keeps natural water content and natural structure, water that the salt content is higher can bring a series of problems for industrial and agricultural production and people's life, may cause huge harm and economic loss, foreign also made research and practice to the restoration of high salt content water, wherein more successful have dutch moral sea dam, American colorado river and australian black river etc.. The sea water is used in Duande dam in 1932, and in order to transform the enclosed sea water lake and marsh saline-alkali land into fresh water lake and fertile farmland, Dutch is subjected to drainage, burning, ditching, canal digging and other projects, and the sea water in the dam is basically changed into fresh water in 1980; the right side of the water storage device 100 is fixedly provided with a valve 101, the lower part of the water storage device 100 is fixedly provided with a fixed base 102, the left side of the water storage device 100 is fixedly connected with a flushing pipe 103, a groove 201 is arranged inside the saline-alkali soil body 200, the bottom of the groove 201 arranged inside the saline-alkali soil body 200 is provided with a seepage hole 202, the middle part of the saline-alkali soil body 200 is provided with an improved layer 300, the improved layer 300 comprises an organic composite modifier and a soil structure modifier, the organic composite modifier comprises industrial waste, the soil structure modifier comprises polyacrylamide and polyvinyl alcohol, the improved layer 300 comprises an improved material of a calcium modifier and an acid modifier, the calcium modifier comprises gypsum, phosphogypsum and desulfurization gypsum, the acid modifier comprises sulfuric acid, sulfur, aluminum sulfate and coal gangue, and the chemical improvement is a method for reducing the harm of saline alkali by carrying out neutralization chemical reaction on the saline-alkali soil by using the modifier, the water storage layer 400 is arranged under the improved layer 300, and the hidden pipe 500 is fixedly connected to the lower part of the water storage layer 400.
With the research of chemical improvement methods, from the 90 s in the 20 th century, the research of improving saline-alkali soil by using high polymer improving agents draws international attention, the chemical improvement methods have the advantages of obvious short-term effect, obvious defects, high cost and influence on soil environment to be investigated and researched. Physical measures are widely applied to saline-alkali soil improvement, and the physical structure of soil is changed by some physical methods to regulate and control water and salt movement of the soil. Such as deep ploughing and sunning upturned soil, raising terrain, changing soil in micro-area, flushing and pressing salt and the like belong to physical measures; with the continuous and deep research of material science, a new process for improving saline-alkali soil by using physical measures such as zeolite, ground covering and the like is developed. In the 60 s of the 20 th century, zeolite was beginning to be used as a soil amendment in japan. The zeolite has wide sources, low cost, no toxicity and no harm, shows good soil improvement effect in practical application, and is a soil conditioner convenient to popularize. Physical measures have no sequelae on soil, and are often implemented together with plant improvement, so a system for improving alkaline earth by utilizing water resources to carry out efficient cyclic leaching is provided at present.
According to the system for efficiently improving the coastal saline-alkali soil by water resource circulation, a method for efficiently improving the coastal saline-alkali soil by water resource circulation is provided, and comprises the following steps:
s1: opening the valve 101 of the water reservoir 100 and allowing irrigation water to flow out through the flush pipe 103;
s2: pouring water enters the groove 201 in the saline-alkali soil body 200 and flows downwards from the seepage hole 202;
s3: the saline-alkali soil is leached by the irrigation water and is matched with the modifying agent in the modified layer 300 to leach and modify the saline-alkali soil body 200;
s4: the step of S3 is repeatedly and circularly carried out, and then the soil salinity index of the saline-alkali soil body 200 is detected;
s5: when the salt content in the saline-alkali soil body 200 is detected not to be reduced any more, the leaching and watering are stopped;
s6: the leached water is stored in the aquifer 400 and flows into the concealed conduit 500;
s7: and finally, reasonably utilizing the desalted soil as resources.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. A system for improving coastal saline-alkali soil with high efficiency of water resource circulation is characterized in that: including water storage device (100) and saline-alkali soil body (200), the right side fixed mounting of water storage device (100) has valve (101), the below fixed mounting of water storage device (100) has unable adjustment base (102), the left side fixedly connected with wash pipe (103) of water storage device (100), saline-alkali soil body (200) inside is seted up flutedly (201), infiltration hole (202) have been seted up to the bottom of recess (201) that saline-alkali soil body (200) inside was seted up, the middle part of saline-alkali soil body (200) is provided with improvement layer (300), be provided with below improvement layer (300) water-storage layer (400), the lower part fixedly connected with hidden pipe (500) of water-storage layer (400).
2. The system for water resource recycling to improve coastal saline-alkali soil according to claim 1, wherein: the top of water storage device (100) is provided with into water fill, the upper portion on saline-alkali soil body (200) soil layer is original state soil.
3. The system for water resource recycling to improve coastal saline-alkali soil according to claim 1, wherein: the improved layer (300) contains an improved material of a calcareous modifying agent and an acid modifying agent, the calcareous modifying agent contains gypsum, phosphogypsum and desulfurized gypsum, and the acid modifying agent contains sulfuric acid, sulfur, aluminum sulfate and coal gangue.
4. The system for water resource recycling to improve coastal saline-alkali soil according to claim 1, wherein: the improved layer (300) contains an organic composite improver and a soil structure improver, the organic composite improver contains industrial waste, and the soil structure improver contains polyacrylamide and polyvinyl alcohol.
5. The system for improving coastal saline-alkali soil by water resource recycling according to claim 1, further comprising:
s1: opening a valve (101) of the water storage device (100) and pouring water flows out through a flushing pipe (103);
s2: pouring water enters the groove (201) in the saline-alkali soil body (200), and the pouring water flows downwards from the seepage hole (202);
s3: the saline-alkali soil is leached by the irrigation water and is matched with the modifying agent in the modifying layer (300) to leach and modify the saline-alkali soil body (200);
s4: the step of S3 is repeatedly and circularly carried out, and then the soil salinity index of the saline-alkali soil body (200) is detected;
s5: when the salt content in the saline-alkali soil body (200) is detected not to be reduced any more, the leaching and watering are stopped;
s6: storing the leached water in the aquifer (400) and flowing into the concealed pipe (500);
s7: and finally, reasonably utilizing the desalted soil as resources.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110790077.3A CN113330846A (en) | 2021-07-13 | 2021-07-13 | System for high-efficient improvement coastal saline-alkali soil of water resource circulation |
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| CN202110790077.3A CN113330846A (en) | 2021-07-13 | 2021-07-13 | System for high-efficient improvement coastal saline-alkali soil of water resource circulation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193903A (en) * | 2022-07-15 | 2022-10-18 | 中科鼎实环境工程有限公司 | High-efficiency salt washing and saline-alkali soil intensive fertilization improvement method with water vapor bidirectional circulation |
| CN117837327A (en) * | 2024-02-23 | 2024-04-09 | 青岛冠中生态股份有限公司 | Improvement method of estuarine saline-alkali land based on low-concentration brackish water in intertidal zone |
Citations (5)
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| CN103477745A (en) * | 2013-09-23 | 2014-01-01 | 北京东方园林股份有限公司 | Saline-alkali soil treatment method |
| CN105359663A (en) * | 2015-11-30 | 2016-03-02 | 天津吉天环境科技发展有限公司 | Improvement method for soil of saline and alkaline land |
| CN105917787A (en) * | 2016-06-12 | 2016-09-07 | 天津泰达绿化集团有限公司 | Method for fast and efficient improvement greening of coastal saline soil |
| CN111133979A (en) * | 2020-01-14 | 2020-05-12 | 上海市园林科学规划研究院 | Method for preparing compost by adopting seaside dredger fill |
| CN111133859A (en) * | 2020-01-19 | 2020-05-12 | 天津大学 | A saline-alkali soil water resource collection and saline-alkali soil improvement system |
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2021
- 2021-07-13 CN CN202110790077.3A patent/CN113330846A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103477745A (en) * | 2013-09-23 | 2014-01-01 | 北京东方园林股份有限公司 | Saline-alkali soil treatment method |
| CN105359663A (en) * | 2015-11-30 | 2016-03-02 | 天津吉天环境科技发展有限公司 | Improvement method for soil of saline and alkaline land |
| CN105917787A (en) * | 2016-06-12 | 2016-09-07 | 天津泰达绿化集团有限公司 | Method for fast and efficient improvement greening of coastal saline soil |
| CN111133979A (en) * | 2020-01-14 | 2020-05-12 | 上海市园林科学规划研究院 | Method for preparing compost by adopting seaside dredger fill |
| CN111133859A (en) * | 2020-01-19 | 2020-05-12 | 天津大学 | A saline-alkali soil water resource collection and saline-alkali soil improvement system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115193903A (en) * | 2022-07-15 | 2022-10-18 | 中科鼎实环境工程有限公司 | High-efficiency salt washing and saline-alkali soil intensive fertilization improvement method with water vapor bidirectional circulation |
| CN117837327A (en) * | 2024-02-23 | 2024-04-09 | 青岛冠中生态股份有限公司 | Improvement method of estuarine saline-alkali land based on low-concentration brackish water in intertidal zone |
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