Coastal saline-alkali soil engineering improvement system and method

A saline-alkali soil and engineering technology, applied in land preparation methods, chemical instruments and methods, botanical equipment and methods, etc., can solve the problems of poor soil quality, large fluctuations in the underground salt water level, and high soil salinity, so as to improve the survival rate, improve the The effect of greening level, rapid salt discharge and reverse osmosis

Pending Publication Date: 2020-05-15
TIANJIN UNIV
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Problems solved by technology

[0006] In order to solve the problems existing in the prior art, the present invention provides a coastal saline-alkali soil engineering improvement system and method to solve the problem of high soil salinity, poor soil quality, large fluctuation of underground salt water level and difficult growth of green plants in coastal saline-alkali areas in the prior art The problem

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  • Coastal saline-alkali soil engineering improvement system and method
  • Coastal saline-alkali soil engineering improvement system and method
  • Coastal saline-alkali soil engineering improvement system and method

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[0030] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0031] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0032] It is to be understood that the terms "length", "width", "top", "bottom", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inner", "outer" and other indicated orientations or positional relationships are based on the orientation...

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Abstract

The invention discloses a coastal saline-alkali soil engineering improvement system and method thereof. The system comprises a large pit dug in saline-alkali soil, a salt drainage ditch formed in thebottom of the pit, an isolation layer arranged in the large pit, all the side walls, the bottom and the salt drainage ditch of the pit are fully paved with the isolation layer, and a planting soil layer, an original soil layer and a salt drainage layer are sequentially arranged in the large pit from top to bottom. According to the system and the method, the effects of cutting off a saline water infiltration channel, rapidly discharging salt, reversely infiltrating and fully utilizing original soil resources are achieved, the purposes of improving the quality of the severe saline-alkali soil, increasing the survival rate of greening plants and improving the greening level of the severe saline-alkali soil are rapidly achieved at low cost, and salt returning of a saline-alkali soil layer to aplanting soil layer is avoided.

Description

technical field [0001] The invention belongs to the technical field of saline-alkali soil improvement engineering, and in particular relates to a coastal saline-alkali soil engineering improvement system and method. Background technique [0002] The total area of ​​coastal saline-alkali soil in my country is 500×104hm 2 , with the development of the economy and the increasingly urgent demand for land resources in urban construction, the improvement and utilization of saline-alkali land has become an important direction for the development of reserve land resources. By the end of 2007, the national reclamation area has reached 540km 2 , by 2015, the area of ​​dredged land in China has reached 1500km2 2 Above, only Tianjin Binhai New Area and Hebei Caofeidian will have a planned reclamation area of ​​600km2 by 2020 2 , the area of ​​coastal saline-alkali soil has been further expanded. Coastal saline-alkali soil, especially dredger fill soil, is characterized by high salin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B77/00A01B79/02A01G24/46C09K17/40C09K109/00E02B11/00
CPCA01B77/00A01B79/02A01G24/46C09K17/40E02B11/00C09K2109/00
Inventor 周国华马莎莎郭祺忠练继建武海雯张华新
Owner TIANJIN UNIV
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