CN102523772A - Method for improving and treating saline-alkali soil - Google Patents
Method for improving and treating saline-alkali soil Download PDFInfo
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- CN102523772A CN102523772A CN201110397807XA CN201110397807A CN102523772A CN 102523772 A CN102523772 A CN 102523772A CN 201110397807X A CN201110397807X A CN 201110397807XA CN 201110397807 A CN201110397807 A CN 201110397807A CN 102523772 A CN102523772 A CN 102523772A
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Abstract
The invention relates to a method for improving and treating saline-alkali soil and belongs to the field of planting improvement on the saline-alkali soil. The method has the technical points that a siloxane compound or a hydrocarbonaceous compound is used as a soil capillary blocker in the saline-alkali soil; the soil capillary blocker has the characteristic of non-wettability for water; moreover, the soil capillary blocker is dispersed in water by introducing polar groups; when in contact with calcium ions in the soil, the polar groups are converted into water-insolubility groups to fix a modifier, i.e. a water non-wettability organic compound, so as to block the rising of the soil capillary water, thereby blocking the rising of underground water and inhibiting the rising of salt or alkali carried in the underground water. The application of the method brings the beneficial effects of low cost, good effect of improving the saline-alkali soil, high plant survival rate and convenience in large-area popularization, implementation and application.
Description
Technical field
The invention belongs to plantation transformation field, saline land; Be specifically related to through using the capillary blocking agent, the blocking-up soil capillarity makes the individual event of soil liquid moisture descending; Thereby saline and alkaline unidirectional descending in the drive soil, the improvement and the improvement method that reach improvement and administer a kind of saline land of purpose, saline land.
Background technology
Along with the quickening of process of industrialization, the soil is fewer and feweri, and all has large-area saline land in the coastal area, and extensive studies has all been carried out to the improvement in saline land both at home and abroad through still capable of using after improveing in the saline land therefore.Mainly contain at present in engineering and the acidic materials and administer with measure.Above measure all is effectively, but also has some defectives.Engineering measure: 1. engineering cost is expensive; And destruction soil layer construction; 2. the soil remediation effect can not be lasting; 3. the nutrient in the soil of fresh water flushing back is together drained with salinity; 4. freshwater resources are not enough, are difficult to satisfy pressure salt needs.5. owing to soil capillarity, with underground liter waterborne and surface evaporation, it is saline and alkaline that fresh water is washed off, can come back to the face of land, accumulates in plow layer.Particularly coastal salt marsh wetland, the underground latent water position is many between 1 to 2m, and capillary is grown extremely flourishing, and capillary water rising theoretical level can fully satisfy the soil surface evaporation greater than the phreatic table height, and salt is frequent up and down with the operation of moisture.With the alkaline matter of measure in can only sweetening of the soil, be that the salt lick of main body cuts little ice in the acidic materials for sodium chloride.Therefore how better low cost is carried out in the saline land, long-lasting renovation and utilization, becoming has a difficult problem to be solved for many years.
Summary of the invention
The objective of the invention is to the improvement method in existing saline land is improved, provide ability enough lower improvement costs, long-lasting improvement is realized in the saline land, and be suitable for the improvement and the improvement method in a kind of saline land of large scale application.
For realizing said method, the present invention realizes through following technical scheme:
Be a kind of improvement and improvement method of saline land, the present technique main points are in the saline land, to use silicone compounds or hydrocarbon-containifirst compound as the soil capillary blocking agent, and the soil capillary blocking agent has the nonwettable characteristic of water; In addition, make it be scattered in water through introducing polar group, and this group is met the calcium ion in the soil; Just be converted into the slightly water-soluble group; With fixing this modifying agent, both water wellability organic compound was not blocked the rising of soil capillary water with this; Thereby the rising of blocking groundwater suppresses the rising that underground water carries salt or alkali.
Implementation method to the soil capillary blocking agent can adopt various ways, can be that quantitative being diluted in the water is poured onto in the soil with water when irrigating the fields like the soil capillary blocking agent; Also can be preceding being sprayed onto ground after this modifying agent water dilution to the saline land pouring, it is got in the soil with water; Also can when ploughed in the saline land, be sprinkled into the dead furrow bottom equably, imbed underground certain degree of depth, play blocking-up effect capillaceous, or combine other engineering measure to apply the soil capillary blocking agent underground by the arable land.
After adopting the inventive method, the beneficial effect that brings is: cost is low, and plant survival rate is high, is convenient to large tracts of land promotion and implementation and application.
Embodiment
Use this invention and carry out field trial, position 118.441877 degree, north latitude 37.568546 degree in the Dongying City Kenli County; The big Tanaka in the saline land in above-mentioned area, the chance that on November 8th, 2010 utilized the saline land to plough sprays the capillary blocking agent below topsoil; This capillary blocking agent is silicone compounds or hydrocarbon-containifirst compound, and the soil capillary blocking agent has the nonwettable characteristic of water, to twice of broad irrigation on July 6 in this year; Rainy 122mm (this plot rainfall is with reference to meteorological data), the chemical examination of fetching earth, the plot of handling; The plow layer salt content is below 2.86 ‰; Cotton growth is normal, and the saline land salt content that does not have to handle is greater than 6.27 ‰, and willow willow etc. are all dead.
Because of the capillary blocking agent makes it be scattered in water through introducing polar group; And this group is met the calcium ion in the soil, just is converted into the slightly water-soluble group, with fixing this modifying agent; Both water wellability organic compounds not; Block the rising of soil capillary water with this, thereby the rising of blocking groundwater suppresses the rising that underground water carries salt or alkali.
Implementation method to the soil capillary blocking agent can adopt various ways, can be that quantitative being diluted in the water is poured onto in the soil with water when irrigating the fields like the soil capillary blocking agent; Also can be preceding being sprayed onto ground after this modifying agent water dilution to the saline land pouring, it is got in the soil with water; Also can when ploughed in the saline land, be sprinkled into the dead furrow bottom equably, imbed underground certain degree of depth, play blocking-up effect capillaceous, or combine other engineering measure to apply the soil capillary blocking agent underground by the arable land.Adopt these several kinds implementation methods to the soil capillary blocking agent, its result of use is all identical.
After adopting the inventive method, the beneficial effect that brings is: cost is low, and plant survival rate is high, is convenient to large tracts of land promotion and implementation and application.
Claims (4)
1. the improvement in a saline land and improvement method is characterized in that in the saline land, using silicone compounds or hydrocarbon-containifirst compound as the soil capillary blocking agent, and the soil capillary blocking agent has the nonwettable characteristic of water; In addition, make it be scattered in water through introducing polar group, and this group is met the calcium ion in the soil; Just be converted into the slightly water-soluble group; With fixing this modifying agent, both water wellability organic compound was not blocked the rising of soil capillary water with this; Thereby the rising of blocking groundwater suppresses the rising that underground water carries salt or alkali.
2. the improvement in saline land according to claim 1 and improvement method is characterized in that the soil capillary blocking agent can be that quantitative being diluted in the water is poured onto in the soil with water when irrigating the fields.
3. the improvement in saline land according to claim 1 and improvement method, it is characterized in that to before the pouring of saline land being sprayed onto ground after this modifying agent water dilution, it is got in the soil with water.
4. the improvement in saline land according to claim 1 and improvement method are sprinkled into the dead furrow bottom when it is characterized in that the saline land ploughed equably, imbed underground certain degree of depth by the arable land, play the effect capillaceous of blocking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110397807XA CN102523772A (en) | 2011-12-05 | 2011-12-05 | Method for improving and treating saline-alkali soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110397807XA CN102523772A (en) | 2011-12-05 | 2011-12-05 | Method for improving and treating saline-alkali soil |
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| Publication Number | Publication Date |
|---|---|
| CN102523772A true CN102523772A (en) | 2012-07-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201110397807XA Pending CN102523772A (en) | 2011-12-05 | 2011-12-05 | Method for improving and treating saline-alkali soil |
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| CN (1) | CN102523772A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974253A (en) * | 2017-10-25 | 2018-05-01 | 山东胜景旅游发展有限公司 | A kind of soil conditioner of saline-alkaline soil |
| CN112048311A (en) * | 2020-09-30 | 2020-12-08 | 曾敦华 | Salt return blocking agent for desert and saline-alkali soil and preparation method and application thereof |
-
2011
- 2011-12-05 CN CN201110397807XA patent/CN102523772A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107974253A (en) * | 2017-10-25 | 2018-05-01 | 山东胜景旅游发展有限公司 | A kind of soil conditioner of saline-alkaline soil |
| CN112048311A (en) * | 2020-09-30 | 2020-12-08 | 曾敦华 | Salt return blocking agent for desert and saline-alkali soil and preparation method and application thereof |
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Application publication date: 20120704 |