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System and method for efficiently improving coastal saline-alkali soil with recycled water resources

A saline-alkali soil and water resources technology, applied in botanical equipment and methods, site preparation methods, soil protection, etc., can solve the problems of waste of coastal saline-alkali soil resources, insufficient use of rainwater resources, and shortage of guest soil resources, etc., to achieve effective Conducive to plant growth, rapid and efficient leaching, and significant economic benefits

Pending Publication Date: 2020-06-12
TIANJIN UNIV
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Problems solved by technology

[0013] In order to solve the problems existing in the prior art, the present invention provides a system and method for efficiently improving coastal saline-alkali soil by water resource circulation, which solves the shortage of guest soil resources in coastal saline-alkali soil, high cost, waste of coastal saline-alkali soil resources, and Large impact on groundwater, insufficient utilization of rainwater resources, nutrient loss and runoff pollution

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  • System and method for efficiently improving coastal saline-alkali soil with recycled water resources

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Embodiment Construction

[0025] 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.

[0026] 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.

[0027] 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 system and method for efficiently improving coastal saline-alkali soil with recycled water resources. The system comprises a soil body and a water storage well. The soil bodycomprises saline-alkali soil to be improved, a water permeable membrane layer, a water storage layer, a waterproof layer and undisturbed soil sequentially arranged from top to bottom. A water intakepipe is arranged in the water storage well. A water suction pump is arranged at the water inlet of the water intake pipe that extends to the bottom of a water intake well, and the outlet end of the water intake pipe is horizontally arranged above the surface of the saline-alkali soil to be improved. A tee junction and a valve are arranged on the water intake pipe, with one end being connected to an irrigation apparatus and another end being connected to a removal pipeline. Water is poured onto the saline-alkali soil to be improved and flows into the water storage well after washing, and then water is pumped to wash the saline-alkali soil. Such a process is repeated to wash the saline-alkali soil to be improved for the purpose of desalinization. The system and method disclosed in the invention have the advantages of simple and convenient operations, realized recycling of water resources, efficient saline-alkali soil washing with various water resources in short cycle, achieved improvement of saline-alkali soil without accumulation of salt in the surface soil, saving of fresh water resources, and low improvement cost.

Description

technical field [0001] The invention belongs to the technical field of water resource recycling and saline-alkali soil improvement engineering, and in particular relates to a system and method for efficiently improving coastal saline-alkali soil by water resource recycling. 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. Seashore saline-alkali soil h...

Claims

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Application Information

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IPC IPC(8): A01B77/00A01B79/02A01G24/46E02D3/00
CPCA01B77/00A01B79/02A01G24/46E02D3/00
Inventor 周国华陈亮郭祺忠练继建马莎莎
Owner TIANJIN UNIV
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