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Vegetation restoration method suitable for rainwater harvesting and salt discharge in saline-alkali land

A rainwater collection and vegetation restoration technology, applied in land preparation methods, chemical instruments and methods, soil drainage, etc., can solve the problems of high cost, high energy consumption, long desalination period, etc., and achieve cost reduction, optimization of soil structure, and treatment effect. Good results

Active Publication Date: 2017-09-22
TIANJIN LVYIN LANDSCAPE & ECOLOGY CONSTR
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Its disadvantages are high energy consumption, high cost and long desalination cycle

Method used

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  • Vegetation restoration method suitable for rainwater harvesting and salt discharge in saline-alkali land

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Embodiment Construction

[0030] like figure 1 Shown, the present invention provides a kind of vegetation recovery method that is suitable for saline-alkali land rainwater collection and discharge salt, comprises the steps:

[0031] ⑴Laying the salt drainage layer:

[0032] a. Level the soil and remove the original 5cm saline-alkali accumulation layer on the surface;

[0033] b. Groove every 5 meters, the depth of the groove is 1m-1.2m, and the width of the groove is 0.8-1.2m. After the bottom of the groove is leveled, 5-10cm thick ceramsite is laid, and the ceramsite particle size is 20mm- 30mm; the bottom slope of the groove is 3-5‰, and the slope direction is towards the municipal drainage pipe 7;

[0034] C, the bottom of the groove is laid with double-wall corrugated water permeable pipe 9, and on the double-walled corrugated water permeable pipe 9, petite 10 with a particle diameter of 20mm-30mm is laid, and the thickness of stone salt 10 is 10-20cm;

[0035] d, the double-wall corrugated perm...

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Abstract

The invention provides a vegetation recovery method suitable for saline and alkaline land rainwater collection and salt elimination. A rainwater recycling layer and a salt elimination layer are arranged underground, soil on the upper layer is controlled preferentially though rainwater recycling and irrigation, high-concentration salt water is drained through the salt elimination layer, and the salt content of soil on the lower layer is gradually reduced as time goes on. The method has the advantages that the saline and alkaline land is gradually controlled, energy consumption is low, the cost is low, and the control effect is good.

Description

technical field [0001] The invention relates to a vegetation recovery method suitable for rainwater collection and salt discharge in saline-alkali land. Background technique [0002] To restore vegetation in coastal saline-alkali land, first of all, it is necessary to reduce the salt content of the soil. Usually, the hidden pipe salt drainage technology is used, and the salt water is discharged through the salt drainage pipe with high water pressure to realize the desalination process of saline-alkali land. Replant saline-alkali tolerant landscape plants to achieve basic saline-alkali land vegetation restoration. [0003] The existing coastal saline-alkali land vegetation restoration model is a single deep-layer recovery system, especially in heavy saline-alkali soil, the effect is not ideal, the overall desalination time of the soil is long, the implementation of the vegetation restoration system is hindered, and the vegetation survival rate is low in the early stage. The ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02B32B3/26B32B9/00B32B9/04B32B27/02B32B27/12B32B27/36B32B18/00E03B3/02E02B11/00
CPCA01B79/02B32B3/26B32B5/02B32B5/26B32B9/005B32B9/007B32B9/047B32B27/12B32B27/36B32B2262/0276E02B11/00E03B3/02Y02A20/108Y02A40/10
Inventor 王彬彬祁永何九波柳红马欣董慧邢智峰
Owner TIANJIN LVYIN LANDSCAPE & ECOLOGY CONSTR