CN105104106A - Winter irrigation method for saline and alkaline land in northern area - Google Patents

Winter irrigation method for saline and alkaline land in northern area Download PDF

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Publication number
CN105104106A
CN105104106A CN201510613660.1A CN201510613660A CN105104106A CN 105104106 A CN105104106 A CN 105104106A CN 201510613660 A CN201510613660 A CN 201510613660A CN 105104106 A CN105104106 A CN 105104106A
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CN
China
Prior art keywords
irrigation
saline
ice
winter
water
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Pending
Application number
CN201510613660.1A
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Chinese (zh)
Inventor
王胜
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Weifang Yourong Industry Co Ltd
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Weifang Yourong Industry Co Ltd
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Priority to CN201510613660.1A priority Critical patent/CN105104106A/en
Publication of CN105104106A publication Critical patent/CN105104106A/en
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    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01GHORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G25/00Watering gardens, fields, sports grounds or the like

Abstract

The invention belongs to the technical field of saline and alkaline land irrigation, and provides a winter irrigation method for a saline and alkaline land in the northern area. The winter irrigation method includes the following steps that a, saline and alkaline water is pumped and injected into a reservoir; b, the saline and alkaline water in the reservoir freezes under the natural condition; the saline and alkaline water which does not freeze and is located below an ice layer is fed into a salt extraction pond for salt extraction treatment; c, the ice layer formed in the step b is fed into an ice crushing system to obtain ice blocks through ice crushing; d, the ice blocks obtained in the step c are fed into an indoor fresh water pond, and the ice blocks melt in the room temperature environment to obtain fresh water; e, the fresh water obtained in the step d is fed into an irrigation system for irrigation; f, after outdoor plants are irrigated, air is input into irrigation pipelines through a pressure pump to make the fresh water flow out of the irrigation pipelines; winter irrigation for the saline and alkaline land in the northern area can be achieved by repeating the steps a to f. In this way the desalination cost of the saline and alkaline water can be saved, the use ratio of the saline and alkaline water is increased, and fresh water needed by the plants in winter can be supplied without occupying human fresh water resources.

Description

Northern area saline land irrigation method in winter
Technical field
The present invention relates to irrigation technique field, saline land, particularly relate to a kind of northern area saline land irrigation method in winter.
Background technology
Going from bad to worse along with ecotope, the salinization of soil is just with unprecedented speed expanded.Therefore, reasonably utilizing saline land, thoroughly improve saline land, cultivate anti-Soiline-alkali plants kind will be following developing direction.
With regard to China, total number of people reaches 1,300,000,000 more than, and total area under cultivation is less than 2,000,000,000 mu, but the saline land gross area reaches 20.45 hundred million mu, and its area constantly expands; The per capita arable land of China and freshwater resources are all well below world average level, and in modernization, arable land atrophy, fresh water pollution, seawater invasion threaten the sustainable development of China's agricultural further, thus in the urgent need to developing the vast saline land of China.
At present, the distribution in China saline land is as follows:
1. Northwest inland RS in Alkali Region: comprise Xinjiang most area, the Caidamu Basin in Qinghai, the Hexi Corridor in Gansu and Western Inner Mongolia.
2. the semiarid RS in Alkali Region of Upper-middle Reaches of The Yellow River: comprise Qinghai, In Eastern Gansu, Ningxia, the Hetao area of Inner Mongol and Shaanxi, the valley plain in Shanxi.
3. RS in Alkali Region, Huang-Huai-Hai plain arid and semi-arid depression: comprise Lower Reaches of The Yellow River, Haihe Plain, the Plain of Huanghua Area, extend across Beijing-Tianjin Hebei, Shandong and Henan and Wan Bei northern Suzhou former.
4. moistening semiarid low-lying RS in Alkali Region, northeast half: comprise song-Nen plain, basin, the west of Liaoning, the Three River Plain and Hulunbeier area.
5. coastal half moistening RS in Alkali Region: comprise East China, south China and coastal area, the north of the Changjiang River.
Soil salt is northern China coastal region main ecological limiting factor, is also to cause the restraining factors that Eco-Environment System is fragile and environmental carrying capacity is low, and it is the serious development restricting agricultural growth and rural economy also.Northern area subterranean water level is high, salinity strong, topsoil soils salt accumulation, and agricultural irrigation freshwater resources lack.Therefore, a kind of irrigation method of new beach saline land is needed to solve the problems referred to above.
In summary, obviously there is inconvenience and defect in actual use in prior art, so be necessary to be improved.
Summary of the invention
For above-mentioned defect, the object of the present invention is to provide a kind of northern area saline land irrigation method in winter, it can saving salt buck desalinating cost, improves saline-alkali water availability, fresh water amount needed for supply plant winter and do not take mankind's freshwater resources.
To achieve these goals, the invention provides a kind of northern area saline land irrigation method in winter, comprise the following steps:
A, extraction saline-alkali water inject cistern;
Saline-alkali water in b, cistern forms ice sheet under field conditions (factors);
C, the ice sheet feeding trash ice system will formed in step b, carry out trash ice and obtain ice cube;
D, step c gained ice cube is sent into indoor fresh-water pool, ice cube melts under room temperature environment, obtains fresh water;
E, the fresh water feeding irrigation system will obtained in steps d, irrigate;
F, after outdoor plant completes when irrigation, by force pump to input air in irrigation conduit, fresh water is made all to flow out irrigation conduit;
G, repetition implementation step a-f, can realize northern area saline land and irrigate winter.
As preferred technical scheme, by rule, ice layer thickness in step b is measured, when ice layer thickness reaches 10cm ~ 30cm, carry out trash ice process.
As preferred technical scheme, in step f to the pressure of input air in described irrigation conduit be 0.2MPa ~ 0.3MPa.
As preferred technical scheme, in described indoor fresh-water pool, be provided with spray equipment.
As preferred technical scheme, in step e, irrigation system is: drip irrigation system, sprinkling irrigation system or trace fill system.
As preferred technical scheme, the volume of described step c medium floe is no more than 10cm*10cm*20cm.
Beneficial effect of the present invention: the invention provides a kind of northern area saline land irrigation method in winter,
1, saline-alkali water in saline land can be made to be fully used and to have saved the desalinating cost of saline-alkali water;
2, the saline-alkali water that the salt alkali concn using the method to be separated is high injects and shines salt pond, improves efficiency of evaporating brine;
3, the fresh water using the method to be separated carries out plant irrigating, and fresh water amount needed for supply plant winter, does not take again the freshwater resources of necessary for human while ensureing plant growth;
4, after irrigation terminates, irrigation conduit being inflated, avoiding because having the existence of fresh water in pipeline and bursting by freezing pipeline, improve pipeline service life.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with embodiment, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Embodiment one:
The invention provides a kind of northern area saline land irrigation method in winter, comprise the following steps:
A, extraction saline-alkali water inject cistern;
Saline-alkali water in b, cistern forms ice sheet under field conditions (factors);
C, the ice sheet feeding trash ice system will formed in step b, carry out trash ice and obtain ice cube;
D, step c gained ice cube is sent into indoor fresh-water pool, ice cube melts under room temperature environment, obtains fresh water;
E, the fresh water feeding irrigation system will obtained in steps d, irrigate;
F, after outdoor plant completes when irrigation, by force pump to input air in irrigation conduit, fresh water is made all to flow out irrigation conduit;
G, repetition implementation step a-f, can realize northern area saline land and irrigate winter.
Saline-alkali water in saline land is injected cistern by the present invention, in the winter time, due to the reason of natural conditions, saline-alkali water in cistern forms ice sheet, remaining saline-alkali water does not form ice sheet because of saline and alkaline excessive concentration, the saline-alkali water of not forming ice sheet is injected solarization salt pond evaporate brine, be conducive to improving and produce salt efficiency, and icing ice sheet feeding trash ice system is carried out trash ice process, obtain ice cube, ice cube is sent into indoor fresh-water pool, ice meltingly under room temperature environment obtain fresh water, the fresh water obtained after thawing is sent into irrigation system irrigate, ensure the water yield needed for plant winter, and don't take the freshwater resources of necessary for human, improve the availability of saline-alkali water, reduce the cost of saline-alkali water desalination simultaneously, when irrigation completes in backward irrigation conduit by force pump input air, fresh water has been avoided to remain in pipeline, and make pipeline in the winter time by bursting by freezing.Inject air in phase pipeline, protection irrigation conduit is not damaged, and improves the service life of pipeline.When the ice sheet in cistern be removed the saline-alkali water high with saliferous alkali concn be transferred complete after, refill new saline-alkali water, repeat above-mentioned steps, realize irrigating in northern area saline land winter.
Preferably, by rule, ice layer thickness in step b is measured, when ice layer thickness reaches 10cm ~ 30cm, carry out trash ice process.When ice layer thickness reaches 10cm ~ 30cm, ice sheet is sent into trash ice system, namely easy trash ice, improves trash ice efficiency; Bring damage can not to again trash ice system, extend the service life of trash ice system.
Preferably, in step f to the pressure of input air in described irrigation conduit be 0.2MPa ~ 0.3MPa.The setting of described pressure, higher than standard atmospheric pressure 0.1MPa, makes the fresh water in irrigation conduit all flow out irrigation conduit under air pressure, and protection irrigation conduit is not in the winter time by bursting by freezing.
Preferably, spray equipment is provided with in described indoor fresh-water pool.The setting of described spray equipment, is more conducive to the thawing of ice cube, improves and melts efficiency.
Preferably, in step e, irrigation system is: drip irrigation system, sprinkling irrigation system or trace fill system.Described drip irrigation system, sprinkling irrigation system or trace fill system can save freshwater resources when irrigating, and make freshwater resources Appropriate application.
Preferably, the volume of described step c medium floe is no more than 10cm*10cm*20cm.The restriction of described ice cube volume, but ice cube melts speed quickening in indoor fresh-water pool, can not be excessive because of volume, and make thawing slow, affect fresh water irrigation and use.
In sum, the invention provides a kind of northern area saline land irrigation method in winter,
1, saline-alkali water in saline land can be made to be fully used and to have saved the desalinating cost of saline-alkali water;
2, the saline-alkali water that the salt alkali concn using the method to be separated is high injects and shines salt pond, improves efficiency of evaporating brine;
3, the fresh water using the method to be separated carries out plant irrigating, and fresh water amount needed for supply plant winter, does not take again the freshwater resources of necessary for human while ensureing plant growth;
4, after irrigation terminates, irrigation conduit being inflated, avoiding because having the existence of fresh water in pipeline and bursting by freezing pipeline, improve pipeline service life.
Certainly; the present invention also can have other various embodiments; when not deviating from the present invention's spirit and essence thereof; those of ordinary skill in the art are when making various corresponding change and distortion according to the present invention, but these change accordingly and are out of shape the protection domain that all should belong to the claim appended by the present invention.

Claims (6)

1. a northern area saline land irrigation method in winter, is characterized in that, comprise the following steps:
A, extraction saline-alkali water inject cistern;
Saline-alkali water in b, cistern forms ice sheet under field conditions (factors);
C, the ice sheet feeding trash ice system will formed in step b, carry out trash ice and obtain ice cube;
D, step c gained ice cube is sent into indoor fresh-water pool, ice cube melts under room temperature environment, obtains fresh water;
E, the fresh water feeding irrigation system will obtained in steps d, irrigate;
F, after outdoor plant completes when irrigation, by force pump to input air in irrigation conduit, fresh water is made all to flow out irrigation conduit;
G, repetition implementation step a-f, can realize northern area saline land and irrigate winter.
2. northern area saline land according to claim 1 irrigation method in winter, be is characterized in that, measured by rule to ice layer thickness in step b, when ice layer thickness reaches 10cm ~ 30cm, carries out trash ice process.
3. northern area saline land according to claim 1 irrigation method in winter, is characterized in that, in step f to the pressure of input air in described irrigation conduit be 0.2MPa ~ 0.3MPa.
4. northern area saline land according to claim 1 irrigation method in winter, is characterized in that, is provided with spray equipment in described indoor fresh-water pool.
5. northern area saline land according to claim 1 irrigation method in winter, it is characterized in that, in step e, irrigation system is: drip irrigation system, sprinkling irrigation system or trace fill system.
6. the northern area saline land irrigation method in winter according to Claims 1 to 5 any one, is characterized in that, the volume of described step c medium floe is no more than 10cm*10cm*20cm.
CN201510613660.1A 2015-09-23 2015-09-23 Winter irrigation method for saline and alkaline land in northern area Pending CN105104106A (en)

Priority Applications (1)

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CN201510613660.1A CN105104106A (en) 2015-09-23 2015-09-23 Winter irrigation method for saline and alkaline land in northern area

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Application Number Priority Date Filing Date Title
CN201510613660.1A CN105104106A (en) 2015-09-23 2015-09-23 Winter irrigation method for saline and alkaline land in northern area

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109205787A (en) * 2018-11-05 2019-01-15 安徽工业大学 Shift operation method sewage freezes purification system and purification method
CN112703851A (en) * 2020-12-28 2021-04-27 魏永阳 Ecological restoration method for saline-alkali soil
CN113461093A (en) * 2021-07-29 2021-10-01 常州大学 Surface deicing saline-alkali water desalting device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03219812A (en) * 1990-01-23 1991-09-27 Mikio Sakurai Irrigation system
CN1556044A (en) * 2003-12-31 2004-12-22 任文林 Seawater desalination and pipeline regulating water
CN1669684A (en) * 2005-04-11 2005-09-21 中国科学院遗传与发育生物学研究所 Process for improving alkaline land utilizing bitter natural freezing
CN1686839A (en) * 2005-03-25 2005-10-26 田魁祥 Method for desalting bitter through ice making by using natural cold source

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03219812A (en) * 1990-01-23 1991-09-27 Mikio Sakurai Irrigation system
CN1556044A (en) * 2003-12-31 2004-12-22 任文林 Seawater desalination and pipeline regulating water
CN1686839A (en) * 2005-03-25 2005-10-26 田魁祥 Method for desalting bitter through ice making by using natural cold source
CN1669684A (en) * 2005-04-11 2005-09-21 中国科学院遗传与发育生物学研究所 Process for improving alkaline land utilizing bitter natural freezing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
郭凯等: "咸水结冰融化过程中水质与水量的变化规律初步研究", 《灌溉排水学报》 *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109205787A (en) * 2018-11-05 2019-01-15 安徽工业大学 Shift operation method sewage freezes purification system and purification method
CN112703851A (en) * 2020-12-28 2021-04-27 魏永阳 Ecological restoration method for saline-alkali soil
CN113461093A (en) * 2021-07-29 2021-10-01 常州大学 Surface deicing saline-alkali water desalting device

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Application publication date: 20151202

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