Replacement type rapid remediation method for saline-alkali soil

Abstract

The invention discloses a replacement type rapid remediation method for saline-alkali soil, and belongs to the technical field of soil governance. According to the replacement type rapid remediation method for the saline-alkali soil, a plurality of uniformly distributed magnet blocks are embedded in the soil of the saline-alkali soil, then semi-extending semi-embedded replacement balls are embedded in the surface of the soil, and water delivery lines on the semi-embedded replacement balls are magnetically attracted by the magnet blocks, so that the water delivery lines are forced to be vertically distributed in the soil and spread downwards; the semi-embedded replacement ball is filled with the replacement soil subjected to modification treatment, and finally remediation liquid is scattered into the soil, so that on one hand, the remediation liquid repairs the soil and improves the soil quality, and on the other hand, the remediation liquid is absorbed by the water delivery lines and conveyed into the semi-embedded replacement balls after salt and alkali are dissolved; then metal cations such as sodium ions are adsorbed through the replacement soil, and efficient adsorption is accelerated by promoting the movement of replacement moving balls in the replacement soil, so that the metal ions are transferred in a mode of actively replacing the metal ions from the soil, and rapid and efficient remediation is realized.

Description

technical field [0001] The invention relates to the technical field of soil treatment, and more specifically, relates to a replacement type rapid repair method for saline-alkali land. Background technique [0002] Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops. According to the incomplete statistics of UNESCO and FAO, the area of ​​saline-alkali land in the world is 954.38 million hectares, of which my country is the largest 99.13 million hectares. The formation of alkaline soil and alkalized soil in my country is mostly related to the accumulation of carbonate in the soil, so the degree of alkalization is generally high, and plants in severe saline-alkali soil areas can hardly survive. [0003] Saline-alkali soil is a general term for saline soil and alkaline soil. Saline soil mainly refers to salinized soil with high chloride or sulfate content. The soil is alkaline, but the pH value is...

AI Technical Summary

Problems solved by technology

The specific improvement measures are: drainage, irrigation, salt washing, silt release improvement, rice planting, fertilization improvement, land leveling and chemical improvement, among which drainage, irrigation salt washing, and silt release improvement cost more and are more difficult to implement, while rice planting, cultivation Fertilizer improvement, land leveling and chemical improvement repair cycle are too long, especially chemical improvement is easy to introduce secondary pollution

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