Desertification soil biological improvement material and application method thereof

Abstract

The invention discloses a desertification soil biological improvement material and an application method thereof. The improvement material is prepared from a biological inhabiting material and a functional microbial community, wherein the biological inhabiting material can provide nutrition substances for the functional microbe growth. The desertification soil biological improvement material has the beneficial effects that the desertification soil biological improvement material is applicable to the biological improvement of the desertification soil in a desertification region; the microbial community is built for the sand soil; the inhabiting material required for the microbe growth is provided; a great amount of hyphae can be generated during the functional microbe growth, and polysaccharide polymers can be secreted; sand particles can be wound and coated by the great amount of the hyphae; the sand particles can be bonded through the secreted polymers, so that the sand bodies are stable; a strong sand stabilization effect is achieved. Meanwhile, a water storage layer is formed for the desertification soil; the soil substance circulation is accelerated; the soil fertility is continuously enhanced; the soil environment suitable for the plant growth is created.

Description

technical field [0001] The invention relates to a desertification soil biological improvement material and an application method. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not constitute prior art. [0003] Land desertification has become a global problem. Desertification refers to the degradation of the natural environment in arid, semi-arid or even semi-humid areas due to the combined effects of man-made and natural factors (including salinization, grassland degradation, soil erosion, soil desertification, and desertification in a narrow sense. The overall process of specific natural environment degradation marked by a certain environmental factor, such as desertification, vegetation desertification, and sand dune invasion in historical periods. [0004] Through further research, it can be found that sand grains, which are inorganic minerals, have active surface charges. Th...

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Problems solved by technology

[0006] 1. Mechanical sand fixation is to form sand barriers by erecting or laying wooden strips, soil blocks, stones, straw and their products and other materials. This method can only hinder the flow of wind and sand, but cannot effectively improve the physical and chemical properties of the sand body, and cannot meet the requirements of the sand body. The needs of desertification and ecological greening;

[0007] 2. Chemical sand fixation, using chemical materials and techniques to build a consolidated layer on the surface of desertified soil that can prevent wind blowing, maintain moisture and improve the properties of sandy land. This method also cannot effectively improve the physical and chemical properties of desertified soil and cannot be sustainable. Meet the needs of plant growth, and easily produce secondary pollution;

[0008] 3. Biological crust, which is a compound formed by the bonding of bacteria, fungi, algae, lichens, mosses, etc., with their hyphae and secretions, etc., and soil gravel. It is an important type of surface cover in arid and semi-arid areas. Biological crusts It has the characteristics of promoting soil development, but the process is extremely slow and cannot satisfy the establishment of a high-biomass micro-ecological circle in a short period of time