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Saline-alkali soil improvement method and system

A technology of saline-alkali soil and salinity, which is applied in the direction of soil improvement machinery, climate change adaptation, agricultural machinery and tools, etc. It can solve the problems of unsuitable long-term use and high cost of amendments, so as to improve the utilization rate of rainwater, improve the soil environment, The effect of reducing fresh water resources

Active Publication Date: 2016-03-02
JIANGSU WATER CONSERVANCY SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this kind of soil improver is not suitable for coastal use, because the salinization of coastal land is "salt comes with water, salt goes with water", which requires frequent use of improver and the cost is too high, so it is not suitable for long-term use

Method used

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  • Saline-alkali soil improvement method and system
  • Saline-alkali soil improvement method and system
  • Saline-alkali soil improvement method and system

Examples

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Embodiment 1

[0042] Such as figure 1 Shown is a kind of method flow process based on the improvement of saline-alkali soil provided by the present invention, and the concrete implementation steps are as follows:

[0043] Construction of storage and drainage structures at the edge of selected plots;

[0044] Obtain the monitored water level and salinity data of the storage and drainage structure;

[0045] According to the monitored water level and the salinity data, the water stored in the storage and drainage structure is used to irrigate and wash salt, or the water level is controlled by drainage to adjust the stored water's salinity data.

[0046] Wherein, the storage and drainage structure includes a storage and drainage ditch arranged at the edge of the plot, and the function of the storage and drainage structure is to collect and temporarily store running water from runoff or infiltration. In an embodiment, the storage and drainage structure also includes a water storage well arrang...

Embodiment 2

[0064] This embodiment will provide a system for improving saline-alkali soil with the method for improving saline-alkali soil based on the embodiment, and further elaborate the method of the present invention based on the system. Such as figure 1 As shown, the system includes: a storage and drainage structure arranged on the edge of the selected plot 8; a water level gauge 4 arranged in the storage and drainage structure, and the water level gauge 4 is used to obtain the monitoring water level in the storage and drainage structure; A salinity detection device 7 in the row structure, the salinity detection device 7 is used to obtain the salinity data of the water in the storage and drainage structure; The drainage structure is used to irrigate and wash salt or control the water level through drainage to adjust the salinity data of the water storage.

[0065] In this embodiment, the storage and drainage structure includes a storage and drainage ditch 1 arranged on the edge of ...

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Abstract

The invention discloses a Saline-alkali soil improvement method and system; the method comprises the following steps: building a storage-drainage structure on the edge of a selected plot; obtaining a monitoring water level and salinity data of the storage-drainage structure; using storage water of the storage-drainage structure to irrigate and leach the salt according to the monitoring water level and the salinity data, or controlling the water level so as to adjust storage water salinity data through water drainage. The method suits coastal near field, can scientifically adjust coastal near-surface underground water level, can improve rainwater utilization rate, can reduce fresh water resource consumption needed for improving solonchak, can improve area soil environment, and is very suitable for periodicity alkalization soil in the coastal region.

Description

technical field [0001] The invention relates to the technical field of soil improvement, and more specifically, relates to a method and system for improving saline-alkali soil. Background technique [0002] China is a country with serious saline-alkali soil hazards. There are 1.487 billion mu of various salinized soils in the country, including about 554 million mu of modern salinized soil, 673 million mu of residual salinized soil, and 260 million mu of potential salinized soil about. Seawater immersion in coastal areas forms coastal saline-alkali soil. The water-soluble salt in the saline-alkali land in the coastal reclamation area moves with the seepage of soil water, which is the so-called "salt comes with water, and salt goes with water". The groundwater and seawater in the coastal reclamation area are closely connected. When the groundwater level is relatively shallow, a large amount of water evaporates and causes salt to accumulate in the soil, which increases the ...

Claims

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Application Information

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IPC IPC(8): A01B77/00
CPCA01B77/00Y02A40/10
Inventor 陈凤王小军吴玉柏张华朱燕
Owner JIANGSU WATER CONSERVANCY SCI RES INST
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