Saline-alkali soil replacement type rapid restoration method

Abstract

A framework assembly and a replacement part are included, the framework assembly comprises a bottom plate, a plurality of inclined supporting rods are arranged at the top of the bottom plate, a containing groove is formed in the outer surface of one side of each inclined supporting rod, and a plurality of clamping grooves are symmetrically formed in the inner walls of the two containing grooves; sliding grooves are formed in the inner walls of the two sides of the inner top and the inner bottom of the clamping groove, movable blocks matched with the sliding grooves are arranged on the two sides of the interior of the clamping groove, and clamping blocks are arranged in the middles of the opposite sides of the two movable blocks. Through the design of the inclined supporting rods, the water conveying pipes are vertically distributed in soil and spread downwards, the replacement pieces are filled with the modified replacement soil, and finally the remediation liquid is scattered into the soil, so that on one hand, the remediation liquid repairs and improves the soil quality, and on the other hand, the remediation liquid is absorbed by the water conveying pipes and conveyed into the replacement pieces after salt and alkali are dissolved; metal cations such as sodium ions are then adsorbed by the replacement soil.

Description

technical field [0001] The invention relates to the field of soil treatment, in particular to a replacement type rapid restoration 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 the FAO, the area of ​​saline-alkali land in the world is 954.38 million hectares, of which my country is 954.38 million hectares. 99.13 million hectares. Most of the formation of alkaline soil and alkaline soil in my country is related to the accumulation of carbonate in the soil, so the alkalinity degree is generally high, and plants in severe saline-alkali soil areas can hardly survive. [0003] Saline-alkali soil is a general term for saline and alkaline soils. Saline soil mainly refers to salinized soil with high chloride or sulfate content, the soil is alkaline, but the pH value is not necessari...

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

Images