CN116438963A - Low-cost saline-alkali soil improvement method - Google Patents
Low-cost saline-alkali soil improvement method Download PDFInfo
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- CN116438963A CN116438963A CN202310145929.2A CN202310145929A CN116438963A CN 116438963 A CN116438963 A CN 116438963A CN 202310145929 A CN202310145929 A CN 202310145929A CN 116438963 A CN116438963 A CN 116438963A
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- alkali soil
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- alkali
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- 239000003513 alkali Substances 0.000 title claims abstract description 151
- 239000002689 soil Substances 0.000 title claims abstract description 145
- 238000000034 method Methods 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 71
- 238000001704 evaporation Methods 0.000 claims abstract description 34
- 230000008020 evaporation Effects 0.000 claims abstract description 31
- 230000002262 irrigation Effects 0.000 claims description 13
- 238000003973 irrigation Methods 0.000 claims description 13
- 241000196324 Embryophyta Species 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 239000013505 freshwater Substances 0.000 claims description 4
- 241001093951 Ailanthus altissima Species 0.000 claims description 3
- 229920000742 Cotton Polymers 0.000 claims description 3
- 235000017643 Elaeagnus angustifolia Nutrition 0.000 claims description 3
- 244000016119 Elaeagnus latifolia Species 0.000 claims description 3
- 235000001456 Elaeagnus latifolia Nutrition 0.000 claims description 3
- 235000007630 Elaeagnus umbellata var parvifolia Nutrition 0.000 claims description 3
- 241000007108 Eurya emarginata Species 0.000 claims description 3
- 244000068988 Glycine max Species 0.000 claims description 3
- 235000010469 Glycine max Nutrition 0.000 claims description 3
- 244000299507 Gossypium hirsutum Species 0.000 claims description 3
- 241001632052 Haloxylon ammodendron Species 0.000 claims description 3
- 235000017784 Mespilus germanica Nutrition 0.000 claims description 3
- 244000182216 Mimusops elengi Species 0.000 claims description 3
- 235000000560 Mimusops elengi Nutrition 0.000 claims description 3
- 240000000249 Morus alba Species 0.000 claims description 3
- 235000008708 Morus alba Nutrition 0.000 claims description 3
- 241001278097 Salix alba Species 0.000 claims description 3
- 235000021307 Triticum Nutrition 0.000 claims description 3
- 244000058281 Ulmus pumila Species 0.000 claims description 3
- 235000001547 Ulmus pumila Nutrition 0.000 claims description 3
- 235000007837 Vangueria infausta Nutrition 0.000 claims description 3
- 240000008042 Zea mays Species 0.000 claims description 3
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 claims description 3
- 235000002017 Zea mays subsp mays Nutrition 0.000 claims description 3
- 241000902900 cellular organisms Species 0.000 claims description 3
- 235000005822 corn Nutrition 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 241001528553 Malus asiatica Species 0.000 claims description 2
- 244000098338 Triticum aestivum Species 0.000 claims 1
- 150000003839 salts Chemical class 0.000 abstract description 9
- 229910052799 carbon Inorganic materials 0.000 abstract description 4
- 238000013461 design Methods 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 abstract 1
- 239000011780 sodium chloride Substances 0.000 abstract 1
- 230000008901 benefit Effects 0.000 description 4
- 241000209140 Triticum Species 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 240000000425 Chaenomeles speciosa Species 0.000 description 1
- 235000005078 Chaenomeles speciosa Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 238000012876 topography Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
-
- 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
-
- 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
- A01G17/00—Cultivation of hops, vines, fruit trees, or like trees
- A01G17/005—Cultivation methods
-
- 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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
-
- 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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/40—Fabaceae, e.g. beans or peas
-
- 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
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/50—Cotton
-
- 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
- A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B3/00—Methods or installations for obtaining or collecting drinking water or tap water
- E03B3/28—Methods or installations for obtaining or collecting drinking water or tap water from humid air
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Botany (AREA)
- Soil Sciences (AREA)
- Mechanical Engineering (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Cultivation Of Plants (AREA)
Abstract
The invention discloses a low-cost saline-alkali soil improvement method, which can effectively improve saline-alkali soil, reasonably facilitates the saline-alkali soil, not only performs targeted planting according to the saline-alkali degree of the saline-alkali soil, but also performs trapezoid design on the saline-alkali soil, adopts a ditching drainage mode to drain water for irrigating the saline-alkali soil, and simultaneously can recover, evaporate and store water for reuse, can irrigate in the water shortage state, solve the problem of drought and no water, can wash the saline-alkali soil once every time, thereby improving the saline-alkali soil, can obtain industrial salt through processing the recovered salt, can increase income for planting crops or trees, not only improves the saline-alkali soil, but also increases income, adopts new energy for power supply for the evaporation of the saline water, is low-carbon and environment-friendly, saves energy and is convenient for people to use.
Description
Technical Field
The invention relates to the field of saline-alkali soil improvement, in particular to a low-cost saline-alkali soil improvement method.
Background
Saline-alkali soil is a kind of salt accumulation, and is characterized in that salt contained in the soil influences normal growth of crops, and according to incomplete statistics of textbook organizations and grain and agricultural organizations of united nations, the area of the saline-alkali soil is 9.5438 hundred million hectares worldwide, wherein the area of China is 9913 ten thousand hectares. The formation of alkaline earth and alkaline soil in China is mostly related to the accumulation of carbonate in the soil, so that the alkalinity is generally high, and plants in severe saline-alkali soil areas can hardly survive. The existing saline-alkali soil improvement mode is many, but improvement effect is very poor, and consumes a large amount of manpower, material resources and financial resources, the existing saline-alkali soil treatment mode is to dig furrows and drain water on the saline-alkali soil, the saline-alkali soil is continuously washed, and finally the saline-alkali soil is desalted, but long-term washing is performed, so that water and soil loss is caused, a large amount of accumulated water aggravates the salinization phenomenon, the saline-alkali soil needs to be continuously modified and revised according to the topography, the later maintenance cost is high, the existing improvement method does not have certain benefit, even if crops are planted, but the crop benefit of the saline-alkali soil is low, more cost is needed to guarantee that the crops have enough water sources when the crops are drought, in a word, the existing saline-alkali soil improvement is often high in cost, and the improvement effect is poor, and therefore, the low-cost saline-alkali soil improvement method is provided.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art and provides a low-cost saline-alkali soil improvement method for solving the problems of the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a low-cost saline-alkali soil improvement method comprises the following specific steps:
s1, digging a drainage ditch in the central position of the saline-alkali soil, and stacking the dug saline-alkali soil on two sides of the saline-alkali soil;
s2: leveling the excavated saline-alkali soil, setting the land between the saline-alkali soil at the top parts of two sides of the saline-alkali soil and the drainage ditch into a terraced field form, and arranging a slope between every two terraced fields;
s3: the highest positions on the two sides of the saline-alkali soil are provided with water filling pipes which are connected with a water pump in the condensing tower through water pipes;
s4: an evaporation pond is built at the lower part of the saline-alkali soil, a condensing tower is arranged at the highest part of the saline-alkali soil, the evaporation pond is connected with one end of a drainage ditch through a pipeline, and the condensing tower is connected with the evaporation pond through a pipeline;
s5: the method comprises the steps of detecting the salt alkalinity of saline-alkali soil on a constructed terraced field, wherein the saline-alkali soil is divided into mild saline-alkali soil, moderate saline-alkali soil and severe saline-alkali soil, planting different plants or crops on different saline-alkali lands, and paving turf on a slope;
s6: in rainy season, rainwater is irrigated on terraces, after saline-alkali soil on the terraces is washed, flowing water dilute saline-alkali soil flows into drainage ditches all the time through slopes, flows into evaporation ponds through flowing water slopes, evaporates water vapor through the evaporation ponds, and is conveyed into a condensing tower through a pipeline to be condensed into fresh water and stored in the condensing tower;
s7: when irrigation is needed, the condensed water is pumped into the water filling pipe by the water pump in the condensing tower, the saline-alkali soil is irrigated and washed by the water sprayed out of the water filling pipe, and part of the washed water is recycled into the condensing tower through the drainage ditch and the evaporation pool.
As a preferable technical scheme of the invention, a running water slope is arranged in the drainage ditch, and one end of the running water slope is higher and the other end is lower.
As a preferred technical solution of the present invention, the detection standard of S5 is represented by pH: the pH value of the mild saline-alkali soil is as follows: 7.1 to 8.5, the pH value of the moderate saline-alkali soil is: 8.5 to 9.5, the pH value of the severe saline-alkali soil is as follows: 9.5-10.5.
As a preferable technical scheme of the invention, the severe saline-alkali soil in the S5 is planted with oleaster or Eurya emarginata; planting any one or more of ulmus pumila, salix alba, medlar or haloxylon ammodendron in the moderate saline-alkali soil; and planting any one or more of ailanthus altissima, right mulberry, malus asiatica, biota, corn, wheat, soybean or cotton in the light saline-alkali soil.
As a preferable technical scheme of the invention, a temperature sensor is arranged in the condensing tower, an electromagnetic valve is arranged on the water filling pipe, and the temperature sensor is electrically connected with the electromagnetic valve through a controller.
As an optimized technical scheme of the invention, a wind power station and a solar power panel are built on one side of the saline-alkali soil, and the wind power station and the solar power panel are electrically connected with a condensing tower and an evaporating pond.
As a preferable technical scheme of the invention, the condensing tower is composed of a condensing fan, a condensing pipe and a compressor, and the evaporation tank is composed of a heating rod and a stirrer.
The beneficial effects of the invention are as follows: the method can effectively improve the saline-alkali soil, reasonably facilitates the saline-alkali soil, not only carries out targeted planting according to the saline-alkali degree of the saline-alkali soil, but also carries out trapezoidal design on the saline-alkali soil, adopts a ditching drainage mode to drain water for irrigating the saline-alkali soil, simultaneously can recover, evaporate and store the water for use, can irrigate when water is deficient, solves the problem of drought and no water, can flush the saline-alkali soil once every time, thereby improving the saline-alkali soil, can obtain industrial salt through processing the recovered salt, can increase the income for planting crops or plants, improves the saline-alkali soil, also increases the income, adopts new energy for supplying power for the evaporation of the saline-alkali water, is low-carbon and environment-friendly, saves energy, and is convenient for people to use.
Drawings
Fig. 1 is a schematic view of a partial structure of a saline-alkali soil according to the present invention.
In the figure: saline-alkali soil 1, slope 2, escape canal 3, running water slope 4, terraced fields 5, irrigation pipe 6, raceway 7, condensing tower 8, evaporation pond 9.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the attached drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Examples: referring to fig. 1, the present invention provides a technical solution: a low-cost saline-alkali soil improvement method comprises the following specific steps:
s1, digging a drainage ditch 3 in the central position of the saline-alkali soil 1, and stacking the dug saline-alkali soil on two sides of the saline-alkali soil 1;
s2: leveling the excavated saline-alkali soil 1, setting the land between the saline-alkali soil at the top parts of two sides of the saline-alkali soil 1 and the drainage ditch 3 into a terraced field 5, and arranging a slope 2 between every two terraced fields;
s3: the highest positions on the two sides of the saline-alkali soil 1 are provided with water filling pipes 6, and the water filling pipes 6 are connected with a water pump in a condensing tower 8 through a water pipe 7;
s4: an evaporation pond 9 is built at the lower part of the saline-alkali soil 1, a condensing tower 8 is arranged at the highest part of the saline-alkali soil 1, the evaporation pond 9 is connected with one end of the drainage ditch 3 through a pipeline, and the condensing tower 8 is connected with the evaporation pond 9 through a pipeline;
s5: the saline-alkali soil on the constructed terraced fields 5 is detected and divided into mild saline-alkali soil, moderate saline-alkali soil and severe saline-alkali soil, different plants or crops are planted on different saline-alkali lands, and turf is paved on the slope 2;
s6: in rainy season, rainwater is irrigated on the terraced fields 5, after saline-alkali soil on the terraced fields 5 is washed, flowing water diluted saline-alkali soil flows into the drainage ditch 3 all the time through the slope 2, flows into the evaporation pond 9 through the flowing water slope 4, evaporates water vapor through the evaporation pond 9, is conveyed into the condensing tower 8 through a pipeline to be condensed into fresh water and is stored in the condensing tower 8;
s7: when irrigation is needed, the condensed water is pumped into the irrigation pipe 6 by the water pump in the condensation tower 8, the saline-alkali soil is irrigated and washed by the water sprayed out of the irrigation pipe 6, and part of the washed water is recycled into the condensation tower 8 through the drainage ditch 3 and the evaporation pond 9.
The inside of escape canal 3 is equipped with the water-flowing slope 4, and the one end of water-flowing slope 4 is high one end low, is favorable to rivers to drain away.
The detection standard of S5 is expressed as pH value: the pH value of the mild saline-alkali soil is as follows: 7.1 to 8.5, the pH value of the moderate saline-alkali soil is: 8.5 to 9.5, the pH value of the severe saline-alkali soil is as follows: 9.5-10.5.
S5, planting oleaster or Eurya emarginata in severe saline-alkali soil; planting any one or more of ulmus pumila, salix alba, medlar or haloxylon ammodendron in moderate saline-alkali soil; any one or more of ailanthus altissima, right mulberry, chaenomeles speciosa, biota, corn, wheat, soybean or cotton is planted in the light saline-alkali soil, and the planting is targeted according to different saline-alkali degrees, so that the survival rate of plants is improved, the improvement of saline-alkali soil is facilitated, and meanwhile, corresponding benefits are brought.
The temperature sensor is arranged in the condensing tower, the electromagnetic valve is arranged on the irrigation pipe 6, and the temperature sensor is electrically connected with the electromagnetic valve through the controller, so that the water in the condensing tower is prevented from being excessively high in temperature and directly irrigated crops.
A wind power station and a solar power generation plate are built on one side of the saline-alkali soil 1, and are electrically connected with a condensing tower 8 and an evaporation pond 9, so that new energy sources such as wind energy and solar energy can be used for generating electricity to supply power to equipment, and the purposes of low carbon, environmental protection and energy conservation are achieved.
The condensing tower 8 is composed of a condensing fan, a condensing pipe and a compressor, and the evaporating pond 9 is composed of a heating rod and a stirrer.
Working principle: a low-cost saline-alkali soil improvement method comprises the following specific steps:
s1, digging a drainage ditch 3 in the central position of the saline-alkali soil 1, and stacking the dug saline-alkali soil on two sides of the saline-alkali soil 1;
s2: leveling the excavated saline-alkali soil 1, setting the land between the saline-alkali soil at the top parts of two sides of the saline-alkali soil 1 and the drainage ditch 3 into a terraced field 5, and arranging a slope 2 between every two terraced fields;
s3: the highest positions on the two sides of the saline-alkali soil 1 are provided with water filling pipes 6, and the water filling pipes 6 are connected with a water pump in a condensing tower 8 through a water pipe 7;
s4: an evaporation pond 9 is built at the lower part of the saline-alkali soil 1, a condensing tower 8 is arranged at the highest part of the saline-alkali soil 1, the evaporation pond 9 is connected with one end of the drainage ditch 3 through a pipeline, and the condensing tower 8 is connected with the evaporation pond 9 through a pipeline;
s5: the saline-alkali soil on the constructed terraced fields 5 is detected and divided into mild saline-alkali soil, moderate saline-alkali soil and severe saline-alkali soil, different plants or crops are planted on different saline-alkali lands, and turf is paved on the slope 2;
s6: in rainy season, rainwater is irrigated on the terraced fields 5, after saline-alkali soil on the terraced fields 5 is washed, flowing water diluted saline-alkali soil flows into the drainage ditch 3 all the time through the slope 2, flows into the evaporation pond 9 through the flowing water slope 4, evaporates water vapor through the evaporation pond 9, is conveyed into the condensing tower 8 through a pipeline to be condensed into fresh water and is stored in the condensing tower 8;
s7: when irrigation is needed, the condensed water is pumped into the irrigation pipe 6 by the water pump in the condensation tower 8, the saline-alkali soil is irrigated and washed by the water sprayed out of the irrigation pipe 6, and part of the washed water is recycled into the condensation tower 8 through the drainage ditch 3 and the evaporation pond 9.
The method can effectively improve the saline-alkali soil, reasonably facilitates the saline-alkali soil, not only carries out targeted planting according to the saline-alkali degree of the saline-alkali soil, but also carries out trapezoidal design on the saline-alkali soil, adopts a ditching drainage mode to drain water for irrigating the saline-alkali soil, simultaneously can recover, evaporate and store the water for use, can irrigate when water is deficient, solves the problem of drought and no water, can flush the saline-alkali soil once every time, thereby improving the saline-alkali soil, can obtain industrial salt through processing the recovered salt, can increase the income for planting crops or plants, improves the saline-alkali soil, also increases the income, adopts new energy for supplying power for the evaporation of the saline-alkali water, is low-carbon and environment-friendly, saves energy, and is convenient for people to use.
The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (7)
1. A low-cost saline-alkali soil improvement method is characterized by comprising the following steps: the method comprises the following specific steps:
s1, digging a drainage ditch (3) in the central position of the saline-alkali soil (1), and stacking the dug saline-alkali soil on two sides of the saline-alkali soil (1);
s2: leveling the excavated saline-alkali soil (1), setting the land between the saline-alkali soil at the top of two sides of the saline-alkali soil (1) and the drainage ditch (3) into a terraced field (5), and setting a slope (2) between every two terraced fields;
s3: the highest positions on the two sides of the saline-alkali soil (1) are provided with water filling pipes (6), and the water filling pipes (6) are connected with a water pump in a condensing tower (8) through a water pipe (7);
s4: an evaporation pond (9) is built at the lower part of the saline-alkali soil (1), a condensing tower (8) is arranged at the highest part of the saline-alkali soil (1), the evaporation pond (9) is connected with one end of the drainage ditch (3) through a pipeline, and the condensing tower (8) is connected with the evaporation pond (9) through a pipeline;
s5: the saline-alkali soil on the constructed terraced fields (5) is detected and divided into mild saline-alkali soil, moderate saline-alkali soil and severe saline-alkali soil, different plants or crops are planted on different saline-alkali lands, and turf is paved on the slopes (2);
s6: in rainy season, rainwater is irrigated on a terraced field (5), after saline-alkali soil on the terraced field (5) is washed, flowing water diluted saline-alkali soil flows into a drainage ditch (3) all the time through a slope (2), flows into an evaporation pond (9) through a flowing water slope (4), evaporates water vapor through the evaporation pond (9), is conveyed into a condensing tower (8) through a pipeline to be condensed into fresh water and is stored in the condensing tower (8);
s7: when irrigation is needed, the condensed water is pumped into the irrigation pipe (6) by the water pump in the condensation tower (8), saline-alkali soil is irrigated and flushed by the water sprayed out of the irrigation pipe (6), and part of the flushed water is recycled into the condensation tower (8) through the drainage ditch (3) and the evaporation pond (9).
2. The low-cost saline-alkali soil improvement method as defined in claim 1, wherein the method comprises the following steps: the inside of escape canal (3) is equipped with running water slope (4), the one end of running water slope (4) is high one end low.
3. The low-cost saline-alkali soil improvement method as defined in claim 1, wherein the method comprises the following steps: the detection standard of the S5 is expressed as pH value: the pH value of the mild saline-alkali soil is as follows: 7.1 to 8.5, the pH value of the moderate saline-alkali soil is: 8.5 to 9.5, the pH value of the severe saline-alkali soil is as follows: 9.5-10.5.
4. The low-cost saline-alkali soil improvement method as defined in claim 1, wherein the method comprises the following steps: planting oleaster or Eurya emarginata in the severe saline-alkali soil in the step S5; planting any one or more of ulmus pumila, salix alba, medlar or haloxylon ammodendron in the moderate saline-alkali soil; and planting any one or more of ailanthus altissima, right mulberry, malus asiatica, biota, corn, wheat, soybean or cotton in the light saline-alkali soil.
5. The low-cost saline-alkali soil improvement method as defined in claim 1, wherein the method comprises the following steps: the condensing tower (8) is internally provided with a temperature sensor, the irrigation pipe (6) is provided with an electromagnetic valve, and the temperature sensor is electrically connected with the electromagnetic valve through a controller.
6. The low-cost saline-alkali soil improvement method as defined in claim 1, wherein the method comprises the following steps: a wind power station and a solar power panel are built on one side of the saline-alkali soil (1), and the wind power station and the solar power panel are electrically connected with a condensing tower (8) and an evaporation pond (9).
7. The low-cost saline-alkali soil improvement method as defined in claim 1, wherein the method comprises the following steps: the condensing tower (8) is composed of a condensing fan, a condensing pipe and a compressor, and the evaporating pond (9) is composed of a heating rod and a stirrer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310145929.2A CN116438963A (en) | 2023-02-21 | 2023-02-21 | Low-cost saline-alkali soil improvement method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116784082A (en) * | 2023-08-24 | 2023-09-22 | 上海华维可控农业科技集团股份有限公司 | Irrigation liquid return treatment and reuse method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116784082A (en) * | 2023-08-24 | 2023-09-22 | 上海华维可控农业科技集团股份有限公司 | Irrigation liquid return treatment and reuse method and system |
| CN116784082B (en) * | 2023-08-24 | 2023-11-10 | 上海华维可控农业科技集团股份有限公司 | Irrigation liquid return treatment and reuse method and system |
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