Soil preparation surface soil stripping and backfilling construction method

Abstract

The invention relates to a soil preparation surface soil stripping and backfilling construction method. The method comprises the following steps: S1, carrying out detection and analysis according to surface soil naturally formed in the nature, and formulating a lowest standard suitable for plant growth; S2, carrying out regional division on a land parcel, and dividing the land parcel into a plurality of block sections; S3, carrying out sampling work on the surface soil of each block section, and carrying out detection and analysis work on the surface sample soil of different block sections; S4, marking the block sections with the surface soil lower than the lowest standard value; S5, removing sundries on the marked block section ground in a man-machine combination mode; S6, stripping the surface soil in a man-machine combination mode; S7, stacking and mixing the stripped surface soil, a biological bacterial fertilizer and an organic fertilizer; and S8, backfilling the mixed surface soil. The method has the effect of quickly realizing surface soil nutrient remediation.

Description

Technical field [0001] The invention relates to the technical field of soil treatment, and in particular to a construction method for land consolidation topsoil stripping and backfilling. Background technique [0002] It takes 300-400 years to form 1cm thick topsoil in nature. Surface soil is a precious resource that is difficult to regenerate in a short period of time. It is the most precious component of arable land resources. It is the fundamental foundation of comprehensive food production capacity, the basis for crop production, and the core of arable land productivity. The promotion of soil stripping and backfilling of the cultivated layer is an important means to improve the quality of cultivated land, an effective way to ensure the quantity of cultivated land and to ensure the balance of cultivated land, and an important measure to achieve the goal of cultivated land protection. It plays an active role in protecting limited cultivated land resources. effect. [0003] At p...

AI Technical Summary

Problems solved by technology

[0004] Although the existing construction method can effectively ensure that the cultivated land area is not reduced, the topsoil resources are not lost, the topsoil space configuration is optimized, the soil configuration is excellent, the soil quality is not reduced, the crop yield is increased, and the construction efficiency is high, but there are defects. The reason is that only the maintenance of the surface soil has been realized, only the transportation and reorganization of a surface soil has been realized, and an undamaged or better surface soil has been transplanted to the already depleted surface soil, and the surface soil has not been truly solved. The problem of nutrient loss after a period of use

Images