Isolation layer and preparation method thereof for prolonging service lifetime of earth soil

Abstract

The invention provides an isolation layer and a preparation method thereof for prolonging service lifetime of earth soil. The isolation layer is composed of a micro-organic material layer, a straw leaf-littering layer, a peat pond mud layer, a thin sand layer and a gypsum layer. The laying method comprises following steps: eliminating topsoil soil with severe salt damage at 0-40 cm, and laying the gypsum layer, the thin sand layer, the peat pond mud layer, the straw leaf-littering layer and the micro-organic material layer. The isolation layer and the preparation method thereof for prolonging service lifetime of earth soil have following beneficial effects: the isolation layer is used for integrating microbial technology, chemical technology and physical technology for restoration of salt-affected soil so that physical properties of topsoil soil are improved; salt return of deep soil is inhibited and service lifetime of earth soil is prolonged.

Description

technical field [0001] The invention relates to an isolation layer for prolonging the service life of foreign soil and a preparation method thereof, belonging to the field of agricultural resources. Background technique [0002] The intensive planting mode of protected cultivation has caused a series of soil problems, among which the secondary salinization of soil is the most serious. Soil salinization in facilities inhibits the beneficial microbial flora of the soil, promotes the proliferation of harmful microorganisms, hinders the decomposition and transformation process of fertilizers, and destroys the balance of nutrient supply and demand between soil and crops, resulting in a decline in soil production capacity, resulting in declines in the yield and quality of agricultural products, and even Hazards such as dead seedlings. Areas with serious soil salinization in facilities will also lead to excessive nitrate content in groundwater and eutrophication of surrounding wat...

AI Technical Summary

Problems solved by technology

Soil salinization in facilities inhibits the beneficial microbial flora of the soil, promotes the proliferation of harmful microorganisms, hinders the decomposition and transformation process of fertilizers, and destroys the balance of nutrient supply and demand between soil and crops, resulting in a decline in soil production capacity, resulting in declines in the yield and quality of agricultural products, and even Hazards such as dead seedlings

Areas with serious soil salinization in facilities will also lead to excessive nitrate content in groundwater and eutrophication of surrounding water bodies, indirectly threatening the safety of drinking water for residents

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