Salt leaching control system for high-salt-content soil and method

Abstract

The invention discloses a salt leaching control system for high-salt-content soil and a method. The system comprises a salt leaching device, a salt returning device, a residual water treatment device and a transmission feedback control device. According to the salt leaching control system, through improvement of the salt leaching device, the salt returning device and the transmission feedback control device, four functions of high-salt-content soil salt leaching / returning operation, water quality and soil texture data identification, network transmission, terminal display and control feedback are realized, the soil salt leaching control system which is visible in real time and accurate in control and the method are constructed, the system can simulate the salt leaching times, the water consumption and the soaking time on site, can also simulate a salt return scene of an high underground water level environment, accurately controls the salt leaching times, the water consumption and the soaking time according to design indexes, the system is convenient, simple and efficient to operate, according to the system and the method, accurate salt leaching is conducted on the high-salt-content soil, the remarkable water saving effect is achieved, the high-salt-content soil is suitable for being used as planting soil after salt leaching, and reference can be provided for resource utilization of coastal mud flat sludge.

Description

technical field [0001] The invention relates to the technical field of soil improvement, in particular to the technical field of soil improvement with high salt content. Background technique [0002] Because coastal cities are close to the ocean, their altitude is low, they have been soaked by seawater for a long time, their groundwater level is high and their salinity is high, and their soil has the natural conditions for salinization. Therefore, coastal dredger fill has high water content, high soluble salt content, high pH value, poor water permeability after dehydration, easy compaction, low fertility, and its agricultural use is limited. [0003] In order to implement the most stringent arable land protection system and land-saving system, the improvement and utilization of saline-alkali soil is regarded as an important arable reserve resource, and its agricultural development and utilization has become an important measure to solve problems such as population, food, re...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the salt washing frequency, water consumption or soaking time of soil with high salinity cannot be accurately controlled, and at the same time solve technical problems such as uneven salt washing, the present invention provides a salt washing control system for high salinity soil. The system and method simulates the way of flooding salt in the field, introduces a transmission feedback control device, and responds to the treatment effect in real time. It can accurately control the number of times of salt washing, water volume and soaking time, and improve the salt washing process to improve the salt washing effect.

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