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A kind of greening improvement method of saline-alkali soil

A saline-alkali soil and chemical improvement technology, which is applied in chemical instruments and methods, land preparation methods, botanical equipment and methods, etc., can solve the problems of increased cost of saline-alkali soil greening improvement, and achieve the effect of improving the efficiency of salt discharge

Active Publication Date: 2022-04-12
天津市方正建设监理有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the above-mentioned prior art, different treatment methods are adopted for soil at different depths, but since the salt in the saline-alkali soil can rise along the soil capillary and enter the surface soil again, after a period of time, the surface soil will be salinized again, resulting in Saline-alkali soil greening improvement cost increases

Method used

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  • A kind of greening improvement method of saline-alkali soil
  • A kind of greening improvement method of saline-alkali soil
  • A kind of greening improvement method of saline-alkali soil

Examples

Experimental program
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Effect test

Embodiment 1

[0049] A saline-alkali soil greening improvement method, comprising the steps of:

[0050] (1) Dig deep the soil on the saline-alkali surface and let it cool for 2 days;

[0051] (2) Bottom salt discharge pipe 1 is buried inside the soil of saline-alkali land. A plurality of seepage holes 7 are provided on the circumferential surface of bottom salt discharge pipe 1, and a non-woven fabric layer 8 is wrapped on the outer wall of bottom salt discharge pipe 1. One end of the salt discharge pipe 1 is sealed, and the other end is connected with a water collection pipe 2 perpendicular thereto, and the other end of the water collection pipe 2 is connected with the salt discharge well 21; Incline towards the direction of the salt discharge well 21;

[0052] (3) laying a chemically improved soil layer 3 with a thickness of 50cm above the bottom salt discharge pipe 1; the chemical fertilizer in the chemically improved soil layer includes desulfurization gypsum 0.1kg / m 2 , furfural sla...

Embodiment 2

[0057] A saline-alkali soil greening improvement method, comprising the steps of:

[0058] (1) Dig deep the soil on the saline-alkali surface and let it cool for 2 days;

[0059] (2) Bottom salt discharge pipe 1 is buried inside the soil of saline-alkali land. A plurality of seepage holes 7 are provided on the circumferential surface of bottom salt discharge pipe 1, and a non-woven fabric layer 8 is wrapped on the outer wall of bottom salt discharge pipe 1. One end of the salt discharge pipe 1 is sealed, and the other end is connected with a water collection pipe 2 perpendicular thereto, and the other end of the water collection pipe 2 is connected with the salt discharge well 21; 2 inclined to the direction of the salt drainage well 21;

[0060] (3) laying a chemically improved soil layer 3 with a thickness of 55cm above the bottom salt discharge pipe 1; the chemical fertilizer in the chemically improved soil layer includes desulfurization gypsum 0.2kg / m 2 , furfural slag 0...

Embodiment 3

[0065] A saline-alkali soil greening improvement method, comprising the steps of:

[0066] (1) Dig deep the soil on the saline-alkali surface and let it cool for 3 days;

[0067] (2) Bottom salt discharge pipe 1 is buried inside the soil of saline-alkali land. A plurality of seepage holes 7 are provided on the circumferential surface of bottom salt discharge pipe 1, and a non-woven fabric layer 8 is wrapped on the outer wall of bottom salt discharge pipe 1. One end of the salt discharge pipe 1 is sealed, and the other end is connected with a water collection pipe 2 perpendicular thereto, and the other end of the water collection pipe 2 is connected with the salt discharge well 21; 2 inclined to the direction of the salt drainage well 21;

[0068] (3) laying a chemically improved soil layer 3 with a thickness of 60cm above the bottom salt discharge pipe 1; the chemical fertilizer in the chemically improved soil layer includes desulfurization gypsum 0.3kg / m 2 , furfural slag 0...

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Abstract

The invention discloses a saline-alkali soil greening improvement method, which belongs to the technical field of saline-alkali land improvement. The key point of the technical solution is that the improvement method includes the following steps: (1) digging deep the soil on the saline-alkali surface, and drying it for 2-3 days; (2) Bury the bottom salt discharge pipe inside the saline-alkali soil, one end of the bottom salt discharge pipe is sealed, and the other end is connected to the salt discharge well; (3) Lay a chemically improved soil layer with a thickness of 50-60cm above the bottom salt discharge pipe; (4 ) An upper layer of salt discharge pipe is buried above the chemically improved soil layer, one end of the upper layer of salt discharge pipe is sealed, and the other end is connected with a vertical water collection pipe, one end of the water collection pipe is sealed, and the other end is connected with the salt discharge well; ( 5) Lay an upper salt barrier layer with a thickness of 20-30cm above the upper salt discharge pipe; (6) Lay an improved soil layer with a thickness of 15-25cm above the salt barrier layer to improve permeability and block capillary water rise, reducing the effect of salt buildup.

Description

technical field [0001] The invention relates to the technical field of saline-alkali land improvement, in particular to a greening improvement method of saline-alkali soil. Background technique [0002] At present, land salinization is a worldwide problem faced by human beings. Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops. There are large areas of saline-alkali land in China, mainly distributed in the North China Plain, Northeast Plain, Northwest Inland and coastal areas. The survival rate of plants planted in saline-alkali soil is generally very low, which seriously affects the development of my country's agriculture and forestry. [0003] The existing patent with publication number CN106171104A for reference discloses a method for improving saline-alkali soil by applying desulfurized gypsum for deep plowing, which specifically includes the following steps: S1 ratio of improved material...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01B77/00A01G24/10A01G24/20A01G24/28C09K17/40C09K109/00C09K101/00
CPCA01B79/02A01B77/00A01G24/10A01G24/20A01G24/28C09K17/40C09K2109/00C09K2101/00
Inventor 王丹杨艳武黄博
Owner 天津市方正建设监理有限公司